1. The preparation method of the three-dimensional air layer fabric is characterized by comprising the following steps:

s1 weaving process: weaving 100D/96F regenerated polyester filament DTY, 250D/96F regenerated polyester composite yarn ITY and 70D Lycra by double-sided weft knitting to form gray cloth;

the usage amounts of the 100D/96F regenerated polyester filament DTY, the 250D/96F regenerated polyester composite yarn ITY and the 70D Lycra are calculated according to the following weight percentages:

100D/96F regenerated polyester filament DTY 44-60%

ITY 29-43% of 250D/96F regenerated polyester composite yarn

7% -15% of 70D Lycra;

s2 dyeing process: sequentially carrying out oil removal, dyeing, reduction cleaning, dehydration, scutching and drying on the gray cloth obtained in the step S1 to obtain dyed gray cloth;

s3 post-finishing process: padding the dyed gray cloth obtained in the step S2 with a hydrophilic assistant aqueous solution to obtain a gray cloth with a liquid carrying rate of 60-75%, and then carrying out shaping treatment to obtain a three-dimensional air layer fabric;

the hydrophilic auxiliary in the hydrophilic auxiliary aqueous solution is SIM, PEP or NVS.

2. The method for preparing a three-dimensional air layer fabric according to claim 1, wherein in the step S2, the temperature and time of the dyeing process of the gray cloth are controlled as follows:

firstly, heating from 25 ℃ to 50 ℃ at a heating rate of 0.6-0.8 ℃/min, then heating from 50 ℃ to 70 ℃ at a heating rate of 0.4-0.6 ℃/min, and keeping the temperature for 0-12 min; then heating from 70 ℃ to 130 ℃ at the heating rate of 0.8-1.2 ℃/min, and preserving heat for 25-35 min; finally, the temperature is reduced from 130 ℃ to 80 ℃ at the cooling rate of 1.5-2.5 ℃/min.

3. The method for preparing a three-dimensional air layer fabric according to claim 1, wherein in the step of preparing S3, the amount of the hydrophilic assistant aqueous solution is (1.3-1.7): 1.

4. The method for preparing a three-dimensional air layer fabric according to claim 1, 2 or 3, wherein in the step of preparing S3, the volume percentage concentration of the hydrophilic auxiliary in the hydrophilic auxiliary aqueous solution is 0.8-1.2%.

5. The method for preparing the three-dimensional air layer fabric as claimed in claim 4, wherein in the step of preparing S3, the sizing treatment comprises padding the dyed gray cloth obtained in the step S2 with the aqueous solution of the hydrophilic assistant, and then sequentially carrying out the first sizing treatment and the second sizing treatment, wherein the first sizing temperature is 160-190 ℃ and the time is 90-130S; the temperature of the second setting is 160-190 ℃, the time is 90-130s, and the time between the first setting and the second setting is 0-10 s.

6. The method for preparing a three-dimensional air layer fabric as claimed in claim 5, wherein in the step S3, the temperature for the first shaping is controlled at 170-180 ℃ and the temperature for the second shaping is controlled at 170-180 ℃.

7. The method for preparing a three-dimensional air layer fabric according to claim 1, wherein in the preparing process S2, the degreasing is: and (4) soaking the gray cloth obtained in the step (S1) in an aqueous solution of an oil removing agent for removing oil, wherein the oil removing agent is any one of SL-376N and HT-DWA.

8. The three-dimensional air layer fabric obtained by the preparation method according to any one of claims 1 to 7, wherein the three-dimensional air layer fabric is of a layered structure consisting of an outer layer, a middle layer and an inner layer, the outer layer and the inner layer are both woven by 100D/96F regenerated polyester filament DTY and 70D lycra, the middle layer is woven by 250D/96F regenerated polyester composite yarn ITY, and the inner layer, the outer layer and the middle layer are interwoven by double-sided weft knitting;

the knitting method comprises the following steps of knitting an inner layer, an outer layer and a middle layer, wherein the knitting method comprises the following steps of:

44% -60% of 100D/96F regenerated polyester filament DTY;

7% -15% of 70D Lycra;

ITY29% -43% of 250D/96F regenerated polyester composite yarn.

9. The three-dimensional stereoscopic air layer fabric according to claim 8, characterized in that: the weaving method comprises the following steps of weaving the inner layer, the outer layer and the middle layer by using the following raw materials in percentage by weight:

46% -58% of 100D/96F regenerated polyester filament DTY

ITY 31% -41% of 250D/96F regenerated polyester composite yarn

9-13% of 70D Lycra.

Background

The air layer warm keeping fabric is named as health fabric in China, is a special double-sided structure, and has relatively large gaps in the middle of two sides of the fabric by increasing the distance between the machine table openings and adopting a special weaving process, so that the warm keeping effect is achieved.

The fabric has the function that the fabric structure with the inner piece, the middle piece and the outer piece is adopted through the structural design, so that an air interlayer is formed in the fabric, and the warm-keeping effect is achieved.

In autumn and winter, people can wear clothes made of the thermal fabric for keeping warm. However, in the process of sports, the body temperature of a human body rises, and at the moment, the human body needs to dissipate heat by means of perspiration, however, the existing warm-keeping fabric only has a warm-keeping function and cannot discharge the perspiration generated by the human body out of the fabric. Therefore, an air layer thermal fabric with good thermal insulation property, moisture permeability or hydrophilicity is urgently needed.

Disclosure of Invention

In order to solve the above problems, the present application provides a three-dimensional air layer fabric and a method for manufacturing the same.

In a first aspect, the present application provides a method for preparing a three-dimensional air layer fabric, which adopts the following technical scheme:

a preparation method of a three-dimensional air layer fabric specifically comprises the following steps:

s1 weaving process: weaving 100D/96F regenerated polyester filament DTY, 250D/96F regenerated polyester composite yarn ITY and 70D Lycra by double-sided weft knitting to form gray cloth;

the usage amounts of the 100D/96F regenerated polyester filament DTY, the 250D/96F regenerated polyester composite yarn ITY and the 70D Lycra are calculated according to the following weight percentages:

100D/96F regenerated polyester filament DTY 44-60%

ITY 29-43% of 250D/96F regenerated polyester composite yarn

7% -15% of 70D Lycra;

s2 dyeing process: sequentially carrying out oil removal, dyeing, reduction cleaning, dehydration, scutching and drying on the gray cloth obtained in the step S1 to obtain dyed gray cloth;

s3 post-finishing process: padding the dyed gray cloth obtained in the step S2 with a hydrophilic assistant aqueous solution to obtain a gray cloth with a liquid carrying rate of 60-75%, and then performing setting treatment to obtain a three-dimensional air layer fabric;

and padding, namely, the dyed gray cloth obtained in the step S2 is rolled into a binding groove by a press roller of the setting machine in the binding groove of the setting machine, and is continuously impregnated with the hydrophilic auxiliary agent aqueous solution with the pH value of 4.5-5.5 in the binding groove.

The hydrophilic auxiliary in the hydrophilic auxiliary aqueous solution is SIM, PEP or NVS.

By adopting the technical scheme, the 100D/96F regenerated polyester filament DTY, the 250D/96F regenerated polyester composite yarn ITY and the 70D Lycra are subjected to double-sided weft knitting to obtain the gray cloth which has a layered three-dimensional structure, and grooves are left on the front side and the back side of the obtained gray cloth. The middle layer is the unbooped 250D/96F regenerated terylene composite yarn ITY, so that a more stable oblique buckling shape can be formed in the middle of the finally prepared three-dimensional air layer fabric, the middle of the finally prepared three-dimensional air layer fabric is supported, the fluffiness of the finally prepared layered three-dimensional fabric can be improved, air can be cached, and the fabric has better heat retention property.

Furthermore, in the dyeing process of S2, since the greige cloth obtained in the step S1 is dyed and then subjected to the post-finishing process, the dimensional stability of the finally prepared three-dimensional air layer fabric is improved. In the finishing process of S3, after the dyed greige cloth obtained in the step S2 is sequentially subjected to padding with the hydrophilic assistant aqueous solution and two times of drying and shaping, not only can the friction force between yarns in the greige cloth be increased, the yarns are prevented from slipping or being easily hooked by external force, the slipping of the yarns in the finally prepared three-dimensional air layer fabric is reduced, the dimensional stability of the three-dimensional air layer fabric is further improved, but also the dyed greige cloth obtained in the step S2 is favorably and uniformly and stably padded with the hydrophilic assistant aqueous solution, so that the finally obtained three-dimensional air layer fabric has good hydrophilicity and moisture permeability.

Preferably, in the S2 dyeing process, the temperature and time of the dyeing process of the gray cloth are controlled as follows: firstly, heating from 25 ℃ to 50 ℃ at a heating rate of 0.6-0.8 ℃/min, then heating from 50 ℃ to 70 ℃ at a heating rate of 0.4-0.6 ℃/min, and keeping the temperature for 8-12 min; then heating from 70 ℃ to 130 ℃ at the heating rate of 0.8-1.2 ℃/min, and preserving heat for 25-35 min; finally, the temperature is reduced from 130 ℃ to 80 ℃ at the cooling rate of 1.5-2.5 ℃/min.

By adopting the technical scheme, in the dyeing process, through gradient heating, particularly the heating rate of slow heating is adopted in the range of 50-70 ℃, and heat preservation is carried out for 8-12min at 70 ℃, the problem that the style of the fabric is changed greatly due to inconsistent heated shrinkage of yarns can be effectively solved, and the dimensional stability of the finally prepared three-dimensional air layer fabric pattern is improved, wherein the longitudinal dimensional stability of the finally prepared three-dimensional air layer fabric is improved by 2.17-6.25% relatively, and the transverse dimensional stability is improved by 2.56-7.69% relatively.

After the dyed laminated three-dimensional structure gray cloth is subjected to the subsequent post-finishing process, compared with the three-dimensional air layer fabric prepared by controlling the temperature and the time of the dyeing process of the gray cloth out of the preferable range, the air permeability of the finally prepared three-dimensional air layer fabric is relatively improved by 0.31-1.07%, the height of the absorption core is relatively improved by 2.67-4.00%, the water absorption rate is relatively improved by 0.54-1.09%, the moisture permeability is relatively improved by 0.02-0.06%, and the evaporation rate is relatively improved by 0.92-1.83%. Therefore, the dyeing process of the gray cloth is controlled within the temperature and time, and the warmth retention property, the hydrophilicity, the moisture permeability and the dimensional stability of the prepared three-dimensional air layer fabric can be effectively improved.

Preferably, in the S3 post-processing process, the amount of the hydrophilic assistant aqueous solution is 1: 1 by weight ratio of the hydrophilic assistant aqueous solution to the gray cloth.

By adopting the technical scheme, the gray cloth is padded in the hydrophilic auxiliary agent solution according to the proportion, so that the finally prepared three-dimensional air layer fabric has the advantages that the thermal resistance is relatively improved by 5.56-10.53%, the air permeability is relatively improved by 0.45-0.90%, the height of the suction core is relatively improved by 0.62-1.23%, the water absorption rate is relatively improved by 0.53-1.05%, the evaporation rate is relatively improved by 1.28-1.69%, the slippage of yarns in the three-dimensional air layer fabric can be reduced, the longitudinal dimensional stability is relatively improved by 2.33-2.44%, and the transverse dimensional stability is relatively improved by 2.56-5.56% compared with the three-dimensional air layer fabric prepared by the hydrophilic auxiliary agent solution and the gray cloth in the weight ratio out of the preferable range. Therefore, in the preparation process of the three-dimensional air layer fabric, when the weight ratio of the hydrophilic auxiliary agent aqueous solution to the gray cloth in S3 is (1.3-1.7):1, the finally obtained three-dimensional air layer fabric has better effects of hydrophilicity, moisture permeability, dimensional stability, heat retention and air permeability.

Preferably, the volume percentage concentration of the hydrophilic auxiliary in the hydrophilic auxiliary aqueous solution is 0.8-1.2%.

By adopting the technical scheme, the hydrophilic auxiliary agent can improve the dipping effect on the gray cloth with the layered three-dimensional structure under the concentration, and compared with the three-dimensional air layer fabric prepared by the hydrophilic auxiliary agent with the volume percentage not within the preferable concentration, the finally prepared three-dimensional air layer fabric has the advantages that the thermal resistance is relatively improved by 2.56-5.00%, the air permeability is relatively improved by 0.15-0.45%, the height of the absorbent core is relatively improved by 0.61-1.22%, the water absorption rate is relatively improved by 0.52-1.04%, the moisture permeability is relatively improved by 0.03-0.07%, and the evaporation rate is relatively improved by 0.84-2.48%. Therefore, in the preparation process of the three-dimensional air layer fabric, when the volume percentage concentration of the hydrophilic auxiliary in the hydrophilic auxiliary aqueous solution in S3 is 0.8-1.2%, the finally obtained three-dimensional air layer fabric has better effects of hydrophilicity, moisture permeability, heat retention and air permeability.

Preferably, the sizing treatment is to perform first sizing and second sizing treatment in sequence after padding the dyed gray cloth obtained in the step S2 with a hydrophilic assistant aqueous solution, wherein the first sizing temperature is 160-190 ℃ and the time is 90-130S; the temperature of the second setting is 160-190 ℃, the time is 90-130s, and the time between the first setting and the second setting is 0-10 s.

By adopting the technical scheme, the dyed gray cloth obtained in S2 is subjected to hydrophilic auxiliary agent aqueous solution dip-binding treatment and then is shaped twice, so that yarns in the three-dimensional air layer fabric are uniformly distributed, slippage of the yarns in the three-dimensional air layer fabric is reduced, the cloth surface of the whole three-dimensional air layer fabric is in a fluffy state, particularly middle yarns are uniformly distributed in the cloth surface in a bending and fluffy manner, the function of storing air is achieved, the hydrophilic auxiliary agent aqueous solution is favorably and stably and uniformly dipped and bound in the yarns, the prepared three-dimensional air layer fabric is soft in hand feeling, and the heat retention property, the hydrophilicity, the moisture permeability, the air permeability and the size stability of the prepared three-dimensional air layer fabric are improved.

Preferably, the temperature for the first setting control is 170-.

By adopting the technical scheme, the setting temperature is further optimized, and the layered three-dimensional structure gray cloth is subjected to twice setting, so that the finally prepared three-dimensional air layer fabric has the longitudinal dimensional stability which is relatively improved by 5.13-10.26%, the transverse dimensional stability which is relatively improved by 5.56-13.89%, the thermal resistance which is relatively improved by 2.50-5.00%, the air permeability which is relatively improved by 0.60-1.04%, the height of the suction core which is relatively improved by 2.44-3.05%, the water absorption which is relatively improved by 1.04-1.56%, the moisture permeability which is relatively improved by 0.05-0.07% and the evaporation rate which is relatively improved by 2.08-2.92% compared with the three-dimensional air layer fabric prepared at the non-optimized setting temperature. Therefore, in the preparation process of the three-dimensional air layer fabric, when the temperature for the first setting in S3 is 170-180 ℃ and the temperature for the second setting is 170-180 ℃, the finally obtained three-dimensional air layer fabric has better effects of hydrophilicity, moisture permeability, heat retention and air permeability.

Preferably, the oil removal is: and (4) soaking the gray cloth obtained in the step (S1) in an aqueous solution of an oil removing agent for removing oil, wherein the oil removing agent is any one of SL-376N and HT-DWA.

By adopting the technical scheme, after the gray cloth obtained in S1 is degreased by any degreasing agent, the oil content of the gray cloth can be reduced, and the subsequent process of the gray cloth is facilitated. In the preparation process of the three-dimensional air layer fabric, compared with an oil removal agent without SL-376N or HT-DWA, the air permeability of the three-dimensional air layer fabric prepared finally in the application is relatively improved by 0.15% -0.29%, the height of the absorbent core is relatively improved by 1.78% -3.55%, the water absorption is relatively improved by 0.51% -1.28%, the moisture permeability is relatively improved by 0.01% -0.06%, and the evaporation rate is relatively improved by 3.75% -4.17%. Therefore, in the preparation process of the three-dimensional air layer fabric, the oil removing agent SL-376N or HT-DWA is used, so that the performances of hydrophilicity, moisture permeability, dimensional stability, heat retention, air permeability and the like of the three-dimensional air layer fabric can be enhanced.

In a second aspect, the present application provides a three-dimensional air layer fabric, which adopts the following technical scheme:

the three-dimensional air layer fabric is of a layered structure consisting of an outer layer, a middle layer and an inner layer, wherein the outer layer and the inner layer are respectively woven by 100D/96F regenerated polyester filament DTY and 70D lycra, the middle layer is woven by 250D/96F regenerated polyester composite yarn ITY, and the inner layer, the outer layer and the middle layer are interwoven by double-sided weft knitting;

the knitting method comprises the following steps of knitting an inner layer, an outer layer and a middle layer, wherein the knitting method comprises the following steps of:

44% -60% of 100D/96F regenerated polyester filament DTY;

7% -15% of 70D Lycra;

ITY29% -43% of 250D/96F regenerated polyester composite yarn.

By adopting the technical scheme, the 100D/96F regenerated polyester filament DTY, the 250D/96F regenerated polyester composite yarn ITY and the 70D Lycra are subjected to double-sided weft knitting, and the obtained gray cloth presents a layered three-dimensional structure, so that grooves are left on the front side and the back side of the finally prepared three-dimensional air layer fabric. When air flows, the air flows through the grooves on the front side of the three-dimensional air layer fabric, so that more air can be locked, heat can be retained, the effect of improving the heat retention property of the layered three-dimensional air layer fabric is achieved, meanwhile, the grooves on the back side enable the air in the layered three-dimensional air layer fabric to generate the flowing effect, the close-fitting air flowability of the layered three-dimensional air layer fabric can be reduced, and the wearing experience of the layered three-dimensional air layer fabric can be improved.

Meanwhile, the middle layer is made of 250D/96F regenerated polyester composite yarns ITY, a more stable oblique buckling shape can be formed in the middle of the three-dimensional air layer fabric, the middle of the three-dimensional air layer fabric is supported, the filling power of the finally manufactured three-dimensional air layer fabric can be improved, air can be cached, and therefore the finally manufactured three-dimensional air layer fabric has good heat retention. And the method is favorable for carrying out hydrophilic auxiliary agent water-soluble padding and twice drying and shaping on the gray cloth in the subsequent process of preparing the three-dimensional air layer fabric, so that the hydrophilic auxiliary agent water solution is uniformly and stably impregnated in the three-dimensional air layer fabric, and the hydrophilicity and the moisture permeability of the three-dimensional air layer fabric are improved.

Preferably, the raw materials for weaving the inner layer, the outer layer and the middle layer are as follows according to the weight percentage:

46% -58% of 100D/96F regenerated polyester filament DTY

ITY 31% -41% of 250D/96F regenerated polyester composite yarn

9-13% of 70D Lycra.

By adopting the technical scheme, the three-dimensional air layer fabric prepared by performing double-sided weft knitting on the 100D/96F regenerated polyester filament DTY, the 250D/96F regenerated polyester composite filament ITY and the 70D Lycra in the proportion to obtain the three-dimensional air layer fabric, wherein the longitudinal dimensional stability is (-4.7%) - (-4.6%), the transverse dimensional stability is (-4.1%) -3.9%), the air permeability is 646mm/s-652mm/s, the height of the suction core is 14.8mm-15.0mm, the water absorption rate is 362-368%, and the moisture permeability is 13942g/m².d-13950g/m²D, evaporation rate of 2.16g/h to 2.18 g/h.

In summary, the present application has the following beneficial effects:

1. according to the method, the gray cloth obtained after double-sided weft knitting in S1 has good heat preservation performance, after the gray cloth obtained in S1 is dyed in S2, the gray cloth dyed in S2 is subjected to padding and twice shaping treatment by using the hydrophilic auxiliary agent solution, so that the hydrophilic auxiliary agent aqueous solution is uniformly and stably padded in the three-dimensional air layer fabric, the hydrophilicity of the finally prepared three-dimensional air layer fabric is improved, the slippage of yarns in the three-dimensional air layer fabric is reduced, the prepared three-dimensional air layer fabric is soft in hand feeling, and the hydrophilicity, the moisture permeability, the air permeability and the size stability of the finally prepared three-dimensional air layer fabric are improved;

2. because the 100D/96F regenerated polyester filament DTY, the 250D/96F regenerated polyester composite yarn ITY and the 70D lycra are adopted to carry out double-sided weft knitting to obtain the layered three-dimensional blank cloth with the grooves left on the front and back surfaces of the blank cloth, and the 250D/96F regenerated polyester composite yarn ITY inserted into the middle layer can improve the bulkiness of the blank cloth, thereby being beneficial to air buffering and uniform and stable impregnation of a hydrophilic auxiliary agent aqueous solution in the finally prepared three-dimensional air layer fabric, and leading the finally prepared three-dimensional air layer fabric to have good heat retention, hydrophilicity, moisture permeability, air permeability and dimensional stability.

Drawings

FIG. 1 is a diagram of the triangulation method of the present application;

fig. 2 is a diagram of a double-sided weft knitting method of the present application.

Detailed Description

The present application is described in further detail below with reference to figures 1-2 and examples.

100D/96F regenerated polyester filament DTY purchased from Jiangsu Zhongyuan industry group, Inc.;

250D/96F regenerated polyester composite yarn ITY with the product number of HL-058, purchased from Zhejiang Haili environmental protection science and technology GmbH;

70D lycra, cat # ST003, purchased from orychophragmus gmbh;

100D/96F Dacron FDY, having a product number of 128, purchased from Zhejiang Jinxia New Material science and technology Co., Ltd;

70D chinlon high-elasticity yarn with the product number of 70D/2 is purchased from a Dongguan Dachang source manufacturer;

250D/96F terylene DTY with the model of 250D is purchased from Zhejiang Jinxia New Material with limited science and technology; the hydrophilic auxiliary agent SIM with the material code of BD243 is purchased from On high chemical engineering;

the hydrophilic auxiliary agent PEP with the material code of BD197 is purchased from Ohio chemical engineering;

the hydrophilic auxiliary agent NVS with the material code of 000000313260 is purchased from Ohio chemical engineering;

the pH regulator NE is purchased from high chemical engineering with the material code of 000000229843;

degreasing agent, SL-376N is purchased from LIMING GROUP;

an oil removing agent, HT-DWA is purchased from Zhang Gugang and Tai chemical Co Ltd;

the degreasing agent, TISSOCY RC9 is purchased from Shanghai Demei chemical Co., Ltd;

cuilan S-GL, model S-GL, purchased from the Chenchen Tai Shengwei chemical Co Ltd;

dispersant DS-191H, procured from New Tianjin Hepphele Material Co., Ltd;

sodium hydrosulfite (Na)₂O₄S₂) Purchased from Jinan Kunfeng chemical Co., Ltd;

reducing cleaning agent HT-167BS, purchased from Zhang hong Kong and Tai chemical Co Ltd;

the Lodele Rogowski machine is I3P35460 and is purchased from Terrot;

a dryer, model SANTASHRINK, available from Santex Rimar;

the scutcher, model JS-170-;

a dehydrator, model 00-1200, purchased from exquisite dyeing and finishing facilities, ltd, of crane mountain;

dyeing machine, model CUT-XF-2L, purchased from bazornia machinery equipment ltd, su;

the setting machine, model 4517066, was purchased from MONFONGS FONG' S.

Measurement of dimensional stability, thermal resistance, air permeability, wick height, water absorption rate, moisture vapor transmission rate and evaporation rate of the three-dimensional air layer fabric prepared in each example of the present application and the air layer fabric prepared in comparative example

The dimensional stability was measured by reference to the AATCC-135 washing method.

The thermal resistance is detected according to CB/T11048-2008, and the instrument adopts a YG 606E-textile thermal resistance tester, and is purchased from Ningbo textile instruments and factories.

The air permeability is tested according to GB/T5453-1997, and the air permeability tester is purchased from Qianji precision electro-mechanical technology Limited in Shanghai.

And (3) detecting the height, moisture permeability, water absorption and evaporation rate of the absorbent core, referring to part 1 in the evaluation of the moisture absorption quick drying property of GB/T21655.1-2008 textile: and (4) detecting by a single combined test method.

Example 1

The three-dimensional air layer fabric comprises an outer layer, a middle layer and an inner layer, wherein the outer layer and the inner layer are composed of 100D/96F regenerated polyester filament DTY and 70D Lycra, the middle layer is composed of 250D/96F regenerated polyester composite filament ITY, the raw material components used for weaving and the corresponding weight of the raw material components are shown in table 1 according to the preparation of the three-dimensional air layer fabric with the total weight of 10kg, and the three-dimensional air layer fabric is prepared through the following steps:

s1 weaving process: interweaving 100D/96F regenerated polyester filament DTY, 250D/96F regenerated polyester composite yarn ITY and 70D lycra in a double-sided weft knitting structure by adopting a Lodele rib knitting machine to form a gray fabric, and specifically comprising the following steps of:

a Lodele rib machine is adopted, the machine number is 24G, the cylinder diameter is 30', the rotating speed is 14r/min, and the yarn feeding tension is 8 cN. The triangular arrangement is shown in fig. 1, and the knitting is arranged as shown in fig. 2. Wherein, in fig. 1, ".u &" represents a tuck triangle; v-shaped is represented as a looping triangle; "—" indicates a float triangle. In fig. 2 "|" r indicates a first needle; ② a second knitting needle.

Weaving, namely weaving by adopting six paths of one cycle: wherein, the first path and the fourth path adopt 70D lycra knitting, two needles of a dial are looped, two needles of a needle cylinder are floated, and a weaving weft flat structure is formed. The third path and the sixth path adopt 100D/96F regenerated polyester filament DTY as connecting yarns, the dial has two needles and one needle for tucking and one needle for floating, and the needle cylinder has two needles and one needle for tucking and one needle for floating; and the second path and the fifth path are knitted by using 250D/96F regenerated polyester composite yarn ITY, two needles of a needle cylinder are looped, two needles of a dial are floated, and double-sided weft knitting is carried out to obtain gray cloth.

S2 dyeing process treatment:

s21 oil removal: adding 150L of water into a dyeing machine, adding 150g of degreasing agent TISSOCY RC9 into the dyeing machine, and stirring and mixing uniformly to obtain a degreasing agent aqueous solution. And (4) putting the gray cloth in the S1 into a dyeing machine at 80 ℃, soaking for 20min, and discharging the degreasing agent aqueous solution to obtain the degreased gray cloth.

S22 staining: adding 100L of water into a dyeing machine, heating the water to 25 ℃, adding 0.4kg of turquoise blue S-GL and 1.2kg of DS-191H dispersing agent into the dyeing machine, and uniformly stirring and mixing to obtain a dye solution. And dyeing the deoiled gray cloth in the step S21, wherein in the dyeing process, the running speed of the gray cloth is 200m/mim, and the temperature and the time are controlled as follows:

heating from 25 ℃ to 50 ℃ at the heating rate of 2 ℃/min, and keeping the temperature for 10 min; then heating from 50 ℃ to 70 ℃ at the heating rate of 1.5 ℃/min; then heating from 70 ℃ to 130 ℃ at the heating rate of 0.5 ℃/min, and preserving the heat for 30 min; then cooling from 130 ℃ to 100 ℃ at a cooling rate of 1.0 ℃/min; finally, the temperature is reduced from 100 ℃ to 80 ℃ at the cooling rate of 2.0 ℃/min, and the dyeing solution is discharged, so that the dyed gray cloth is obtained.

S23 reduction cleaning: adding 100L of water into a dyeing machine, heating the water to 70 ℃, adding 0.6kg of sodium hydrosulfite and 0.3kg of reduction cleaning agent HT-167BS into the water, stirring and mixing uniformly to obtain reduction cleaning water solution, adjusting the pH of the reduction cleaning water solution to 4.0-4.5 by using a pH regulator NE, reducing and cleaning the dyed gray cloth in S22 for 20min by using the reduction cleaning water solution, and discharging the reduction cleaning water solution to obtain the gray cloth after reduction cleaning.

S24 dehydration: and dehydrating the gray cloth reduced and cleaned in the S23 for 5min at the rotating speed of the dehydrator of 600r/min to obtain the dehydrated gray cloth.

S25 scutching: and (4) conveying the dewatered gray cloth in the step (S24) to a scutching machine for scutching treatment, wherein the speed is 50m/min, and obtaining the gray cloth with the width of 155 cm.

S26, drying: and (4) conveying the grey cloth subjected to the scutching in the S25 to a dryer for drying, wherein the temperature of the dryer is 130 ℃, and the speed of conveying the grey cloth is 12 m/min.

S3 post-processing:

s31, processing by adding an auxiliary agent: adding 10L of hydrophilic aid aqueous solution into a binding groove of a setting machine, wherein the hydrophilic aid aqueous solution is formed by mixing 99.3L of water and 0.7L of PEP, adjusting the pH of the hydrophilic aid aqueous solution in the binding groove to be 4.5-5.5 by using a pH regulator NE, and then, soaking and binding the gray cloth dried in S26 in the binding groove of the setting machine to obtain the gray cloth with the liquid pick-up rate of 70%, wherein the speed of the setting machine is 15m/min, and the pressure of a roller is 4 MPa.

S32 sizing: conveying the gray cloth processed by the S31 and the auxiliary agent into an oven, and carrying out primary shaping processing for 90S at 150 ℃, wherein the vehicle speed is 12m/min, and the overfeeding is 10%; and after staying for 10s, performing secondary shaping treatment at 150 ℃ for 90s, wherein the vehicle speed is 12m/min, and overfeeding is 10%, so as to obtain the three-dimensional air layer fabric.

Examples 2 to 6:

a three-dimensional air layer fabric, which is different from example 1 in that the raw material components and the corresponding weights thereof are shown in table 1.

TABLE 1 Components and weights (kg) thereof in examples 1-6

The dimensional stability, thermal resistance, air permeability, absorbent core height, water absorption, moisture permeability and evaporation rate of the three-dimensional air layer fabrics prepared in examples 1 to 6 were measured, and the apparent condition of the fabric surface was observed, and the measurement results are shown in table 2.

Table 2 results of testing each property of examples 1 to 6

As can be seen from the analysis of the data of the performance test results in Table 2, the three-dimensional air layer fabrics prepared in the embodiments 1-6 have the longitudinal dimensional stability of (-4.8%) - (C-4.6%), transverse dimensional stability (-4.2%) - (-3.9%), thermal resistance 0.034m²·k/w-0.035m²K/w, air permeability of 645mm/s-652mm/s, absorbent core height of 14.7mm-15.0mm, water absorption of 361% -368%, moisture permeability of 13940g/m².d-13950g/m²D, the evaporation rate is 2.15g/h-2.18g/h, the cloth cover condition is harsh, the yarns do not slide, and the yarns in the middle layer are uniformly distributed in the lattices. Therefore, the three-dimensional air layer fabric prepared by the method has good hydrophilicity, moisture permeability, dimensional stability, heat retention and air permeability.

In particular, the three-dimensional air layer fabrics prepared in examples 2-5 had longitudinal dimensional stability (-4.7%) - (-4.6%), transverse dimensional stability (-4.1%) - (-3.9%), air permeability 646mm/s-652mm/s, absorbent core height 14.8mm-15.0mm, water absorption 362-368%, and moisture permeability 13942g/m².d-13950g/m²D, evaporation rate of 2.16g/h to 2.18 g/h. Therefore, the raw materials used for weaving the inner layer, the outer layer and the middle layer are calculated according to the following weight percentage: 46% -58% of 100D/96F regenerated polyester filament DTY, 31% -41% of 250D/96F regenerated polyester composite yarn ITY and 9% -13% of 70D Lycra, the finally obtained three-dimensional air layer fabric has better hydrophilicity, moisture permeability, dimensional stability, heat retention and air permeability.

In particular, the three-dimensional air layer fabric obtained in example 3 is more excellent in various properties than the three-dimensional air layer fabrics obtained in examples 2, 4, and 5.

Comparative example 1

A polyester jacquard air layer fabric (three layers) is purchased from Yujin needle textile Co., Ltd of the familiar market, and has the model of YJ-089.

Comparative example 2

An air layer fabric is different from the fabric in example 1 in that the total raw material amount and the preparation steps are the same as those in example 1 except that 100D/96F regenerated polyester filament DTY is replaced by 100D/96F polyester FDY.

Comparative example 3

An air layer fabric is different from the air layer fabric in example 1 in that the total raw material amount and the preparation steps are the same as those in example 1 except that 70D lycra is replaced by 70D chinlon high stretch yarn.

Comparative example 4

An air layer fabric is different from the fabric in the embodiment 1 in that the total raw material amount and the preparation steps are the same as those in the embodiment 1 except that 250D/96F regenerated polyester composite yarns ITY are replaced by 250D/96F polyester DTY.

Comparative example 5

A fabric is different from the fabric in the embodiment 1 in that the total raw material amount and the preparation steps are the same as those in the embodiment 1 except that 100D/96F regenerated polyester filament yarn DTY is replaced by 100D/96F polyester FDY, 70D lycra is replaced by 70D nylon high-elasticity yarn, and 250D/96F regenerated polyester composite yarn ITY is replaced by 250D/96F polyester DTY.

Comparative example 6

An air layer fabric was different from example 1 in that it was the same as example 1 except that water was used instead of the hydrophilic assistant aqueous solution (i.e., the hydrophilic assistant aqueous solution was not added) in the assistant addition process of S31 in the production process.

The air layer fabrics prepared by the comparative examples 1-6 were tested for thermal resistance, air permeability, absorbent core height, water absorption, moisture permeability, and evaporation rate, and the apparent condition of the fabric surface was observed, with the test results shown in table 3.

TABLE 3 results of testing various performances of comparative examples 1 to 6

As can be seen from the performance data in Table 3, when the 100D/96F regenerated polyester filament DTY, 70D lycra and 250D/96F regenerated polyester composite yarn ITY are replaced by the full polyester in the comparative example 1, compared with the three-dimensional air layer fabric obtained by adopting the 100D/96F regenerated polyester DTY, 70D lycra and 250D/96F regenerated polyester composite yarn ITY in the example 1, the thermal resistance is relatively reduced by 9.68%, the air permeability is relatively reduced by 28.23%, the suction core height is relatively reduced by 17.60%, the water absorption rate is relatively reduced by 8.37%, the moisture permeability is relatively reduced by 33.27%, and the evaporation rate is relatively reduced by 91.96%.

Compared with the three-dimensional air layer fabric obtained by adopting 100D/96F regenerated polyester DTY, 70D lycra and 250D/96F regenerated polyester composite yarn ITY in the embodiment 1 when 100D/96F FDY is adopted to replace 100D/96F regenerated polyester DTY, the thermal resistance is relatively reduced by 3.03%, the air permeability is relatively reduced by 4.03%, the height of the absorption core is relatively reduced by 11.36%, the water absorption rate is relatively reduced by 5.56%, the moisture permeability is relatively reduced by 22.71%, the evaporation rate is relatively reduced by 79.17%, the cloth cover condition is harsh, the yarns do not slide, and the intermediate layer yarns are uniformly distributed in the lattices.

Compared with the three-dimensional air layer fabric obtained by adopting 100D/96F regenerated polyester DTY, 70D lycra and 250D/96F regenerated polyester composite yarn ITY in the embodiment 1, when 70D lycra is replaced by 70D nylon high-elasticity yarn in the comparative example 3, the thermal resistance is relatively reduced by 3.03%, the air permeability is relatively reduced by 4.03%, the height of the absorption core is relatively reduced by 11.36%, the water absorption rate is relatively reduced by 5.56%, the moisture permeability is relatively reduced by 22.91%, the evaporation rate is relatively reduced by 82.20%, the cloth cover condition is harsh, the yarn does not slip, and the middle layer yarn is uniformly distributed in the grids.

Compared with the three-dimensional air layer fabric obtained by adopting 100D/96F regenerated polyester DTY, 70D lycra and 250D/96F regenerated polyester composite yarn ITY in the embodiment 1, when the 250D/96F polyester DTY is adopted to replace the 250D/96F regenerated polyester composite yarn ITY in the comparative example 4, the thermal resistance is relatively reduced by 3.03%, the air permeability is relatively reduced by 5.74%, the height of the absorption core is relatively reduced by 13.08%, the water absorption rate is relatively reduced by 6.18%, the moisture permeability is relatively reduced by 26.50%, the evaporation rate is relatively reduced by 86.96%, the cloth surface condition is a hand feeling, the yarns do not slide, and the yarns of the middle layer are uniformly distributed in the lattices.

In the comparative example 5, 100D/96F terylene FDY is adopted to replace 100D/96F regenerated terylene DTY, 70D chinlon high stretch yarn is adopted to replace 70D lycra, 250D/96F terylene DTY is adopted to replace 250D/96F regenerated terylene composite yarn ITY, compared with the three-dimensional air layer fabric obtained by adopting 100D/96F regenerated polyester DTY, 70D lycra and 250D/96F regenerated polyester composite yarn ITY in the embodiment 1, the longitudinal dimensional stability is relatively reduced by 22.92%, the transverse dimensional stability is relatively reduced by 6.67%, the thermal resistance is relatively reduced by 6.25%, the air permeability is relatively reduced by 26.47%, the absorbent core height is relatively reduced by 14.84%, the water absorption rate is relatively reduced by 50.42%, the moisture permeability is relatively reduced by 28.78%, the evaporation rate is relatively reduced by 95.45%, the cloth cover condition is harsh, the yarns slide, and the intermediate layer yarns are unevenly distributed in grids.

Comparative example 6, the preparation process did not adopt the hydrophilic assistant aqueous solution to carry out padding treatment, and the obtained fabric has longitudinal dimensional stability reduced by 22.92%, transverse dimensional stability reduced by 7.14%, thermal resistance reduced by 8.82%, air permeability reduced by 22.48%, absorbent core height reduced by 12.93%, water absorption reduced by 32.13%, moisture permeability reduced by 22.35%, evaporation rate reduced by 48.84%, fabric surface condition is harsh, yarn slippage occurs, and intermediate layer yarn is unevenly distributed in the grid, compared with the three-dimensional air layer fabric obtained by adopting hydrophilic assistant aqueous solution to carry out padding treatment in example 1.

Therefore, the gray cloth with the layered three-dimensional structure is obtained by performing double-sided weft knitting on 100D/96F regenerated polyester filament DTY, 70D Lycra and 250D/96F regenerated polyester composite filament ITY, and the finally obtained three-dimensional air layer fabric has good hydrophilicity, moisture permeability, size stability, heat retention and air permeability after padding treatment is performed by adopting a hydrophilic auxiliary agent aqueous solution.

Example 7

A three-dimensional air layer fabric is different from that in the embodiment 3, except that in the dyeing process treatment of the grey cloth in the S2, the temperature and the time of the dyeing process of the grey cloth are controlled in such a way that firstly, the temperature is raised from 25 ℃ to 50 ℃ at the heating rate of 0.6 ℃/min, then the temperature is raised from 50 ℃ to 70 ℃ at the heating rate of 0.4 ℃/min, and the temperature is kept for 8 min; then heating from 70 ℃ to 130 ℃ at the heating rate of 0.8 ℃/min, and keeping the temperature for 25 min; finally, the temperature is reduced from 130 ℃ to 80 ℃ at a cooling rate of 1.5 ℃/min, and the rest is the same as that of the embodiment 3.

Example 8

A three-dimensional air layer fabric is different from that in the embodiment 3, except that in the dyeing process treatment of the grey cloth in the S2, the temperature and the time of the dyeing process of the grey cloth are controlled in such a way that firstly, the temperature is raised from 25 ℃ to 50 ℃ at the heating rate of 0.7 ℃/min, then the temperature is raised from 50 ℃ to 70 ℃ at the heating rate of 0.5 ℃/min, and the temperature is kept for 10 min; then heating from 70 ℃ to 130 ℃ at the heating rate of 1.0 ℃/min, and preserving the heat for 30 min; finally, the temperature is reduced from 130 ℃ to 80 ℃ at a cooling rate of 2.0 ℃/min, and the rest is the same as that of the embodiment 3.

Example 9

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 3 in that except for the step of dyeing the gray cloth by the S2 process, the temperature and the time of the dyeing process of the gray cloth are controlled in such a way that firstly, the temperature is increased from 25 ℃ to 50 ℃ at the rate of 0.8 ℃/min; then heating from 50 ℃ to 70 ℃ at a heating rate of 0.6 ℃/min, and preserving heat for 8-12 min; then heating from 70 ℃ to 130 ℃ at the heating rate of 1.2 ℃/min, and preserving the heat for 35 min; finally, the temperature is reduced from 130 ℃ to 80 ℃ at a cooling rate of 2.5 ℃/min, and the rest is the same as that of the embodiment 3.

In the processes of the above examples 3, 7-9, the dyeing temperature and time of the grey cloth in the S2 dyeing process of the grey cloth are controlled as shown in table 4:

table 4 dyeing temperature and time control of greige cloth of examples 3-9

The three-dimensional air layer fabrics prepared in the examples 7 to 9 were subjected to the detection of thermal resistance, air permeability, core height, water absorption, moisture permeability, and evaporation rate, and the apparent condition of the fabric surface was observed, and the detection results are shown in table 5.

TABLE 5 test results of the properties of examples 3, 7 and 9

As can be seen from the performance test data in Table 5, the three-dimensional air layer fabrics prepared in examples 7-9 of the present application have longitudinal dimensional stability (-4.5%) - (-4.4%), transverse dimensional stability (-3.8%) - (-3.6%), and thermal resistance greater than 0.035m²·k/w-0.036m²K/w, air permeability of 654mm/s-659mm/s, absorbent height of 15.3mm-15.6mm, water absorption of 370% -372%, moisture permeability of 13953g/m².d-13958g/m²D, the evaporation rate is 2.20g/h-2.22g/h, the cloth cover condition is astringent in hand feeling and has a drape feeling, the lattices are uniformly distributed, and the yarns in the middle layer are slightly fluffy.

Comparing various performance parameters of the three-dimensional air layer fabric prepared according to the embodiments 7 to 9 of the present application with those of the three-dimensional air layer fabric obtained according to the embodiment 3 of the present application, the three-dimensional air layer fabric prepared according to the embodiments 7 to 9 of the present application can be obtained, the longitudinal dimensional stability is relatively improved by 2.17% to 6.25%, the transverse dimensional stability is relatively improved by 2.56% to 7.69%, the air permeability is relatively improved by 0.31% to 1.07%, the height of the absorbent core is relatively improved by 2.67% to 4.00%, the water absorption is relatively improved by 0.54% to 1.09%, the moisture permeability is relatively improved by 0.02% to 0.06%, and the evaporation rate is relatively improved by 0.92% to 1.83%.

Therefore, in the preparation process of the three-dimensional air layer fabric, the temperature in the blank cloth dyeing process in S2 is controlled to be increased from 25 ℃ to 50 ℃ at the temperature increasing rate of 0.6-0.8 ℃/min, and to be increased from 50 ℃ to 70 ℃ at the temperature increasing rate of 0.4-0.6 ℃/min, and the temperature is kept for 8-12 min; heating from 70 ℃ to 130 ℃ at a heating rate of 0.8-1.2 ℃/min, and keeping the temperature for 25-35 min; the temperature is reduced from 130 ℃ to 80 ℃ at the cooling rate of 1.5-2.5 ℃/min, and the finally prepared three-dimensional air layer fabric has good hydrophilicity, moisture permeability, heat retention and air permeability and also has better dimensional stability. In particular, the three-dimensional air layer fabric prepared in example 8 of the present application has the best performance compared with the three-dimensional air layer fabrics prepared in examples 7 and 9.

Example 10

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 8 in that the fabric is the same as the fabric in the embodiment 8 except that the hydrophilic auxiliary agent is SIM.

Example 11

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 8 in that the fabric is the same as the fabric in the embodiment 8 except that the hydrophilic assistant is NVS.

The three-dimensional air layer fabrics prepared in examples 10 to 11 were subjected to thermal resistance, air permeability, core height, water absorption, moisture permeability, and evaporation rate measurement, and the apparent condition of the fabric surface was observed, and the measurement results are shown in table 6.

TABLE 6 test results of various properties of examples 8, 10 to 11

As can be seen from the performance test data in Table 6, the three-dimensional air layer fabrics prepared in examples 10-11 of the present application have the longitudinal dimensional stability (-4.5%) - (-4.2%), the transverse dimensional stability (-3.8%) - (-3.4%), and the thermal resistance of 0.036m²K/w, air permeability of 660mm/s-662mm/s, absorbent core height of 15.8mm-16.0mm, water absorption of 374% -376% and moisture permeability of 13960g/m².d-13968g/m²D, the evaporation rate is 2.25g/h-2.32g/h, the cloth cover condition is soft hand feeling and draping feeling, the grids are uniformly distributed, and the yarns in the middle layer are slightly fluffy.

Comparing various performance parameters of the three-dimensional air layer fabric prepared according to the embodiments 10 to 11 of the present application with those of the three-dimensional air layer fabric obtained according to the embodiment 8 of the present application, the three-dimensional air layer fabric prepared according to the embodiments 10 to 11 of the present application can be obtained, the longitudinal dimensional stability is relatively improved by 2.38% to 4.44%, the transverse dimensional stability is relatively improved by 0 to 11.76%, the air permeability is relatively improved by 0.15% to 0.45%, the core height is relatively improved by 1.27% to 2.50%, the water absorption is relatively improved by 0.53% to 1.06%, the moisture permeability is relatively improved by 0.01% to 0.07%, the evaporation rate is relatively improved by 1.33% to 4.31%, the fabric surface has soft hand feeling, draping feeling, uniform grid distribution, and the middle layer yarn is slightly fluffy.

Therefore, in the preparation process S3 of the three-dimensional air layer fabric, when the hydrophilic auxiliary agent is SIM or NVS, the finally prepared three-dimensional air layer has good hydrophilicity, moisture permeability, dimensional stability and air permeability, and is soft in hand feeling. In particular, the three-dimensional air layer fabric prepared in example 10 of the present application has the best performance compared with the three-dimensional air layer fabric prepared in example 11.

Example 12

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 10 in that the fabric is the same as the fabric in the embodiment 10 except that the weight ratio of the hydrophilic assistant aqueous solution to the gray cloth is 1.3: 1.

Example 13

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 10 in that the fabric is the same as the fabric in the embodiment 10 except that the weight ratio of the hydrophilic assistant aqueous solution to the gray cloth is 1.5: 1.

Example 14

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 10 in that the fabric is the same as the fabric in the embodiment 10 except that the weight ratio of the hydrophilic assistant aqueous solution to the gray cloth is 1.7: 1.

The three-dimensional air layer fabrics prepared in examples 12 to 14 were subjected to measurement of thermal resistance, air permeability, core height, water absorption, moisture permeability, and evaporation rate, and the apparent condition of the fabric surface was observed, and the measurement results are shown in table 7.

TABLE 7 examination results of various properties of examples 10, 12 to 14

From Table 7 eachAnalysis of the performance data shows that the three-dimensional air layer fabrics prepared in the examples 12-14 have the longitudinal dimensional stability (-4.3%) - (-4.1%), the transverse dimensional stability (-3.9%) - (-3.6%), and the thermal resistance of 0.036m²·k/w-0.038m²K/w, air permeability of 665mm/s-668mm/s, absorbent core height of 16.1mm-16.2mm, water absorption of 378% -380%, moisture permeability of 13969g/m².d-13974g/m²D, the evaporation rate is 2.35g/h-2.36g/h, the cloth cover condition is soft hand feeling and draping feeling, the grid distribution is uniform, and the yarns in the middle layer are slightly fluffy.

Compared with various performance parameters of the three-dimensional air layer fabric obtained in the embodiment 10, the air layer fabric obtained in the embodiment 12-14 has the advantages that the longitudinal dimensional stability is relatively improved by 2.33-% 2.44%, the transverse dimensional stability is relatively improved by 2.56-5.56%, the thermal resistance is relatively improved by 2.70-5.26%, the air permeability is relatively improved by 0.45-0.90%, the suction core height is relatively improved by 0.62-1.23%, the water absorption is relatively improved by 0.53-1.05%, the moisture permeability is relatively improved by 0.01-0.04%, the evaporation rate is relatively improved by 1.28-1.69%, the cloth surface condition is soft in hand feeling, the drape feeling is realized, the grid distribution is uniform, and the yarns in the middle layer are slightly fluffy.

Therefore, in the preparation process of the three-dimensional air layer fabric, when the weight ratio of the hydrophilic auxiliary agent aqueous solution to the gray cloth in S3 is (1.3-1.7):1, the finally obtained three-dimensional air layer fabric has better effects of hydrophilicity, moisture permeability, dimensional stability, heat retention and air permeability. In particular, the three-dimensional air layer fabric prepared in example 13 of the present application has the best performance compared with the three-dimensional air layer fabrics prepared in examples 12 and 14.

Example 15

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 13 in that the fabric is the same as the fabric in the embodiment 13 except that the volume percentage concentration of the hydrophilic auxiliary agent in the hydrophilic auxiliary agent aqueous solution is 0.8%.

Example 16

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 13 in that the fabric is the same as the fabric in the embodiment 13 except that the volume percentage concentration of the hydrophilic auxiliary agent in the hydrophilic auxiliary agent aqueous solution is 1.0%.

Example 17

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 13 in that the fabric is the same as the fabric in the embodiment 13 except that the volume percentage concentration of the hydrophilic auxiliary agent in the hydrophilic auxiliary agent aqueous solution is 1.2%.

Example 18

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 13 in that the fabric is the same as the fabric in the embodiment 13 except that the volume percentage concentration of the hydrophilic auxiliary agent in the hydrophilic auxiliary agent aqueous solution is 2.0%.

Example 19

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 13 in that the fabric is the same as the fabric in the embodiment 13 except that the volume percentage concentration of the hydrophilic auxiliary agent in the hydrophilic auxiliary agent aqueous solution is 3.0%.

The three-dimensional air layer fabrics prepared in examples 15 to 19 were subjected to measurement of thermal resistance, air permeability, core height, water absorption, moisture permeability, and evaporation rate, and the apparent condition of the fabric surface was observed, and the measurement results are shown in table 8.

TABLE 8 results of examining various properties of examples 15 to 19

As can be seen from the analysis of the performance data in Table 8, the three-dimensional air layer fabrics prepared in the examples 15-17 have the longitudinal dimensional stability (-4.1%) - (-3.9%), the transverse dimensional stability (-3.6%), and the thermal resistance of 0.038m²·k/w-0.040m²K/w, air permeability of 669mm/s-671mm/s, absorbent core height of 16.3mm-16.4mm, water absorption of 382% -384%, moisture permeability of 13978g/m².d-13984g/m²D, the evaporation rate is 2.38g/h-2.42g/h, the cloth cover condition is soft hand feeling and draping feeling, the grid distribution is uniform, and the yarns in the middle layer are slightly fluffy.

Compared with various performance parameters of the three-dimensional air layer fabric obtained in the embodiment 13, the air layer fabric obtained in the embodiments 15 to 17 has the advantages that the thermal resistance is relatively improved by 2.56 to 5.00 percent, the air permeability is relatively improved by 0.15 to 0.45 percent, the height of the absorption core is relatively improved by 0.61 to 1.22 percent, the water absorption rate is relatively improved by 0.52 to 1.04 percent, the moisture permeability is relatively improved by 0.03 to 0.07 percent, and the evaporation rate is relatively improved by 0.84 to 2.48 percent.

Therefore, in the preparation process of the three-dimensional air layer fabric, when the volume concentration of the hydrophilic assistant in the hydrophilic assistant aqueous solution in S3 is 0.8-1.2%, the finally obtained three-dimensional air layer fabric has better effects of hydrophilicity, moisture permeability, heat retention and air permeability. In particular, the three-dimensional air layer fabric prepared in example 16 of the present application has the best performance compared with the three-dimensional air layer fabrics prepared in examples 15 and 17.

The three-dimensional air layer fabric prepared in the examples 18 to 19 of the present application has a longitudinal dimensional stability of (-4.5%) - (-4.6%), a lateral dimensional stability of (-3.5%) - (-3.4%), and a thermal resistance of 0.032m²·k/w-0.038m²K/w, air permeability of 518mm/s-520mm/s, absorbent core height of 14.0mm-14.2mm, water absorption of 256% -258%, moisture permeability of 11512g/m².d-11515g/m²D, the evaporation rate is 1.20g/h-1.21g/h, the hand feeling yarn slippage phenomenon appears under the cloth cover condition, and the middle layer yarn is distributed unevenly in the lattices.

Compared with various performance parameters of the three-dimensional air layer fabric obtained in example 13, the three-dimensional air layer fabric obtained in examples 18 to 19 has longitudinal dimensional stability reduced by 9.76 to 12.20%, transverse dimensional stability reduced by 2.78 to 5.56%, thermal resistance reduced by 0 to 15.79%, air permeability reduced by 22.16 to 22.46%, suction core height reduced by 12.35 to 13.58%, water absorption reduced by 32.11 to 32.63%, moisture permeability reduced by 17.60 to 17.62%, and evaporation rate reduced by 48.73 to 49.15%.

Therefore, in the preparation process of the three-dimensional air layer fabric, when the mass concentration of the hydrophilic auxiliary agent in the hydrophilic auxiliary agent aqueous solution in S3 is 2.0-3.0%, the finally obtained three-dimensional air layer fabric has reduced dimensional stability, hydrophilicity, moisture permeability, heat retention and air permeability.

Example 20

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 16 in that the temperature of the gray fabric is 160 ℃ except for the first setting in the S32 setting process, and the setting time is 90S; the temperature for the second setting was 160 ℃ and the time was 90 seconds, but the procedure was the same as in example 16.

Example 21

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 16 in that a gray fabric is subjected to the shaping process of S32 for 110S except that the temperature for the first shaping is 170 ℃; the temperature for the second setting was 170 ℃ and the setting time was 110s, but the procedure was otherwise the same as in example 16.

Example 22

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 16 in that the temperature of the gray fabric is 180 ℃ except for the first setting in the S32 setting process, and the setting time is 130S; the temperature for the second setting was 180 ℃ and the setting time was 130 seconds, but the procedure was otherwise the same as in example 16.

Example 23

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 16 in that the temperature of the gray fabric is 190 ℃ except for the first setting in the S32 setting process, and the setting time is 90S; the temperature for the second setting was 190 ℃ and the setting time was 90 seconds, but the procedure was otherwise the same as in example 16.

Example 24

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 16 in that a third setting is adopted to replace the two-time setting in the embodiment 16 in the S32 setting process of the gray fabric, and the temperature, the setting time and the time of the two-time setting stay of the first setting and the second setting are controlled to be the same as those in the embodiment 16, namely the fabric is the same as the embodiment 16 except that the fabric stays for 10S between the second setting and the third setting, the temperature of the third setting is controlled to be 180 ℃ and the time is 90S.

Example 25

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 16 in that the fabric is the same as the fabric in the embodiment 16 except that the fabric is subjected to the shaping treatment only once in the S32 shaping process, the shaping temperature is 180 ℃, and the shaping time is 180S.

The dimensional stability, thermal resistance, air permeability, absorbent core height, water absorption, moisture permeability and evaporation rate of the three-dimensional air layer fabrics prepared in examples 20 to 25 were measured, and the apparent condition of the fabric surface was observed, and the measurement results are shown in table 9.

TABLE 9 examination results of various properties of examples 20 to 25

As can be seen from the analysis of the performance data in Table 9, the three-dimensional air layer fabrics prepared in the examples 20-22 have the longitudinal dimensional stability (-3.9%) - (-3.5%), the transverse dimensional stability (-3.4%) - (-3.1%), and the thermal resistance of 0.041m²·k/w-0.042m²K/w, air permeability of 673mm/s-678mm/s, absorbent core height of 16.6mm-16.9mm, water absorption of 386-388%, moisture permeability of 13986g/m².d-13990g/m²D, the evaporation rate is 2.44g/h-2.47g/h, the cloth cover condition is soft hand feeling and draping feeling, and the middle layer yarn is slightly fluffy.

Compared with various performance parameters of the three-dimensional air layer fabric obtained in the embodiment 16, the air layer fabric obtained in the embodiments 20 to 23 has the advantages that the longitudinal dimensional stability is relatively improved by 10.26 to 46.15%, the transverse dimensional stability is relatively improved by 13.89 to 47.22%, the thermal resistance is relatively improved by 2.50 to 12.50%, the air permeability is relatively improved by 0.30 to 1.04%, the height of the absorption core is relatively improved by 0.61 to 3.05%, the water absorption is relatively improved by 0.52 to 1.56%, the moisture permeability is relatively improved by 0.01 to 0.04%, and the evaporation rate is relatively improved by 0.41 to 2.07%. Therefore, in the preparation process of the three-dimensional air layer fabric, when the temperature for the first setting in S3 is 160-180 ℃, the setting time is 90-130S, the temperature for the second setting is 160-180 ℃, and the setting time is 90-130S, the finally obtained three-dimensional air layer fabric has good effects of hydrophilicity, moisture permeability, heat retention and air permeability. In particular, the three-dimensional air layer fabric prepared in example 22 of the present application has the best performance compared to the three-dimensional air layer fabrics prepared in examples 20, 21 and 23.

In particular, compared with various performance parameters of the three-dimensional air layer fabric obtained in example 16, the three-dimensional air layer fabric obtained in examples 21 to 22 has the advantages that the air permeability is relatively improved by 0.60 to 1.04 percent, the height of the absorbent core is relatively improved by 2.44 to 3.05 percent, the water absorption is relatively improved by 1.04 to 1.56 percent, the moisture permeability is relatively improved by 0.05 to 0.07 percent, and the evaporation rate is relatively improved by 2.08 to 2.92 percent. Therefore, in the preparation process S3, when the temperature for the first setting control is 170-180 ℃ and the temperature for the second setting control is 170-180 ℃, the finally obtained three-dimensional air layer fabric has better hydrophilicity, moisture permeability and air permeability.

The three-dimensional air layer fabrics prepared in examples 24-25 of the present application had a longitudinal dimensional stability of (-5.8%) - (-2.7%), a transverse dimensional stability of (-6.6%) - (-1.9%), and a thermal resistance of 0.036m²·k/w-0.046m²K/w, air permeability of 522-805 mm/s, absorbent core height of 13.4-17.8 mm, water absorption of 260-426%, moisture permeability of 11518g/m².d-11806g/m²D, the evaporation rate is 1.22g/h-3.71g/h, the cloth cover condition is soft, the cloth cover is flat, and the middle layer yarn is flattened.

Comparing the performance parameters of the air layer fabrics prepared according to the examples 24-25 with those of the three-dimensional air layer fabrics prepared according to the example 16, the moisture permeability of the three-dimensional air layer fabrics prepared according to the examples 23-25 is relatively reduced by 15.55% -17.61%. Therefore, in the preparation process S3, the three-dimensional air layer fabric is subjected to twice setting treatment, and the finally obtained three-dimensional air layer fabric is better in moisture permeability.

Example 26

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 22 in that the fabric is the same as the fabric in the embodiment 22 except that the oil removing agent is SL-376N in the oil removing process of the auxiliary agent S21.

Example 27

A three-dimensional air layer fabric is different from the fabric in the embodiment 22 in that the fabric is the same as the fabric in the embodiment 22 except that the oil removing agent is HT-DWA in the oil removing process of the auxiliary agent S21.

Dimensional stability, thermal resistance, air permeability, absorbent core height, water absorption, moisture permeability and evaporation rate of the three-dimensional air layer fabrics prepared in examples 26 to 27 were measured, and the apparent condition of the fabric surface was observed, and the measurement results are shown in table 11.

TABLE 11 test results of various properties of examples 22 and 26 to 27

As can be seen from the analysis of the performance data in Table 11, the three-dimensional air layer fabrics prepared in examples 26-27 of the present application all had longitudinal dimensional stability of more than (-3.5%) - (-3.2%), transverse dimensional stability of (-3.1%) - (-3.0%), and thermal resistance of 0.042m²K/w, air permeability of 679mm/s-680mm/s, absorbent core height of 17.2mm-17.5mm, water absorption of 392% -395%, moisture permeability of 13992g/m or more²D, the evaporation rate is 2.49g/h-2.50g/h, the cloth cover condition is soft hand feeling and draping feeling, the grids are uniformly distributed, and the yarns in the middle layer are slightly fluffy.

Compared with various performance parameters of the three-dimensional air layer fabric obtained in the embodiment 22, the air layer fabric obtained in the embodiments 26 to 27 has the advantages that the longitudinal dimensional stability is relatively improved by 0 to 8.57%, the transverse dimensional stability is relatively improved by 0 to 3.23%, the air permeability is relatively improved by 0.15 to 0.29%, the height of the absorbent core is relatively improved by 1.78 to 3.55%, the water absorption is relatively improved by 0.51 to 1.28%, the moisture permeability is relatively improved by 0.01 to 0.06%, and the evaporation rate is relatively improved by 3.75 to 4.17%. Therefore, in the preparation process of the three-dimensional air layer fabric, SL-376N or HT-DWA is selected as an oil removal agent, and the finally prepared three-dimensional air layer fabric is better in hydrophilicity, moisture permeability, size stability, heat retention and air permeability. In particular, the three-dimensional air layer fabric prepared in example 26 of the present application has the best performance compared to the three-dimensional air layer fabric prepared in example 27.

Example 28

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 16 in that the fabric is the same as the fabric in the embodiment 16 except that the hydrophilic auxiliary agent SIM in the hydrophilic auxiliary agent aqueous solution is replaced by PEP.

Example 29

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 16 in that the fabric is the same as the fabric in the embodiment 16 except that the hydrophilic auxiliary agent SIM in the hydrophilic auxiliary agent aqueous solution is replaced by NVS.

Example 30

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 17 in that the fabric is the same as the fabric in the embodiment 17 except that the hydrophilic auxiliary agent SIM in the hydrophilic auxiliary agent aqueous solution is replaced by PEP.

Example 31

A three-dimensional air layer fabric, which is different from the fabric in the embodiment 17 in that the fabric is the same as the fabric in the embodiment 17 except that NVS is used for replacing a hydrophilic auxiliary agent SIM in a hydrophilic auxiliary agent aqueous solution.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.