Preparation method of HOY high-shrinkage crimped fiber Raschel blanket
1. A method for preparing a HOY high-shrinkage crimped fiber Raschel blanket comprises the following steps:
(1) weaving: warping, weaving and splitting the wool yarns and the ground yarns on a warp knitting machine to obtain a Viraschel blanket semi-finished product;
(2) cutting: an automatic hair height detection device is adopted, and a hair height cutting machine is automatically adjusted to cut;
(3) pre-finishing: shaping, high-carding along the hair, ironing and polishing along the hair, and rolling the HOY high-shrinkage crimped fiber raschel blanket semi-finished product;
(4) dyeing: preparing a dye, putting the dye into a slurry tank, allowing the HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to enter a tie-dyeing press roller through the slurry tank, fixing color, and cleaning;
(5) and (3) after finishing: and carrying out the technological processes of drying and shaping, ironing and polishing, brushing, grasping and shearing, compound shaping and ironing and shearing on the dyed HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to obtain the HOY high-shrinkage crimped fiber Raschel blanket finished product.
2. The method of claim 1, wherein the HOY high shrinkage crimped fiber is a raw wool yarn having a gauge of 200D/30 f; the FOY fiber is a ground yarn raw material and has the specification of 75D/48 f; the shrinkage rate of the warp and weft of the blanket is +/-2.0%, the sunlight resistance grade is 4 grade, the color fastness to washing is 4 grade, and the friction resistance is 4 grade.
3. The method according to claim 1, wherein the specific weaving process in step (1) is as follows:
GB 1: 4440/0004 FDY 75D/48f full penetration
GB 2: 0110/0110 FDY 75D/48f full penetration
GB 3: 0101/0101 HOY 200D/30f fully-penetrated plush yarn
GB4: 1001/1001 FDY 75D/48f full penetration
GB5: 0444/4000 FDY 75D/48f full penetration
The weaving speed is 680-710r/min, the drawing density is 8.2-8.3, the crimp width is 2.05 +/-2 cm, and the process number is 380-390 x 4; the let-off amount in the specific weaving process is set as GB1/GB5:2360, GB2/GB4:2050, GB 3: 15500; the height of the semi-finished product is 10-20 mm.
4. The method as claimed in claim 1, wherein the cutting process in step (2) comprises AB surface tension 275-.
5. The preparation method according to claim 1, wherein the shaping process in step (3) adopts high temperature instant reverse hair shaping, the shaping temperature is 150-; the ironing is carried out by adopting a four-in-one ironing and six-positive-eight-negative operation mode of an ironing roller, the ironing pressure is represented by current, the front pressing surface current is 19-21A, and the rear pressing surface current is 22-24A; the cloth discharging tension is 1-1.05mN/m, the pressure of the pressing surface is controlled between 20-22A, the speed is 13.5-14.5m/min, and a W groove is used for a ironing roller.
6. The method according to claim 1, wherein the dye in step (4) is a homogeneous mixture of S-5BL, S-6G, S-2BL, thickener and water; the viscosity of the mixed solution is 20-30 mPa.s, the formula corresponding to 100kg of cloth is 0.8-0.85G S-5BL, 0.035-0.04G S-6G, 1.03-1.04G S-2BL and 2.3-2.5kg of thickening agent, and the addition amount of the water is up to the viscosity of the mixed solution is 20-30 mPa.s.
7. The preparation method of claim 1, wherein the left, middle and right three-point pressure of the tie-dyeing press roll in the step (4) is 3-3.5 MPa; the color fixation adopts steaming color fixation, the color fixation time is 14-16min, and the temperature is 125-.
8. The preparation method according to claim 1, wherein the cleaning in step (4) is performed by a water washing machine at a speed of 15-17m/min and a high-temperature bath temperature of 75-85 ℃, 14-16% of high-concentration slip agent is added to the auxiliary agent, 3.8-4.2kg of raw pulp is used as a base, and the pressure of a roller of the water washing machine is 2-2.2 MPa.
9. The method of claim 1, wherein the HOY high shrinkage crimped fiber is prepared by a method comprising the steps of:
(1) carrying out melt spinning on spinneret orifices to obtain HOY high-shrinkage crimped fibers, wherein the spinning speed is 6000-6500 m/min; adding a heat stabilizer in the melting process;
(2) microwave hydrolysis is carried out on the HOY high-shrinkage crimped fiber obtained in the step (1);
(3) carrying out ultrasonic treatment on the hydrolyzed HOY high-shrinkage crimped fiber obtained in the step (2) in a NaOH solution with the mass fraction of 0.5-1%;
(4) oiling the HOY high-shrinkage crimped fiber obtained in the step (2), wherein the oiling agent contains at least one of fluoropolyether and/or potassium phosphate, and the mass ratio is 30-50%;
(5) and (4) winding at high speed to obtain a finished product.
10. The preparation method of claim 9, wherein the heat stabilizer in step (1) is potassium phosphate, and the mass ratio of the potassium phosphate is 1-2%; the microwave hydrolysis power of the step (2) is 300-500W, the time is 1-2min, and the mass ratio of water to HOY high-shrinkage crimped fiber is 10-20: 1-1.5; and (4) the ultrasonic treatment time in the step (3) is 1-2 min.
Background
The textile industry is the traditional pillar type industry and the important civil industry of national economy in China, is also the industry with obvious international competitive advantage in China, and plays an important role in aspects of market flourishing, export expansion, employment absorption, income increase of farmers, urbanization development promotion and the like. Since 2018, the textile machinery industry is deeply promoted to upgrade the industry, progress in various aspects such as novel high efficiency, low energy consumption, flexibility, automation, digitization, intellectualization and the like is achieved to different degrees, and technical innovation and structural adjustment support stable growth of the industry. The overall operation quality and effect are good since 2019, and the industrial added value of enterprises with the scale above the textile industry in China is increased by 1.3% in a year-on-a-year basis in 2019.
HOY is a highly oriented fiber, has a stable internal structure and better uniformity, has high orientation degree, has sufficient crystalline region orientation but very low amorphous region orientation, and is easier to absorb color and more uniform in dyeing than FDY. Compared with the conventional FDY, the strength is lower, the elongation is large, the boiling water shrinkage is low, so that the fiber has good softness, and can be directly used as a final product for weaving. But can be separated out in the fiber heat setting process and deposited on a heating roller, so that the friction force is increased and the heating is uneven, the oil applying process has higher requirement on oil products, and the spinning speed can also influence the fiber strength.
The grant number CN105155016B discloses an ultra-soft heavy-dyeing type polyester HOY high-shrinkage crimped fiber and a preparation method thereof, wherein the ultra-soft heavy-dyeing type polyester HOY high-shrinkage crimped fiber is mainly prepared by melt spinning of polyester through a spinneret orifice, oiling agent and high-speed winding; the oil agent of the oil agent at least comprises fluorine-containing polyether, and the mass of the fluorine-containing polyether is more than or equal to 45% of that of the oil agent; the fluorine-containing polyether is a random copolymer of ethylene oxide, [ (1,1,2, 2-tetrafluoroethoxy) methyl ] ethylene oxide and propylene oxide, and the structural formula of the fluorine-containing polyether is as follows: the preparation method comprises the steps of metering, extruding, cooling, oiling and high-speed winding the polyester to prepare the super-soft heavy-dyeing type polyester HOY high-shrinkage crimped fiber. The super-soft thick-dyed polyester HOY high-shrinkage crimped fiber has a stable internal structure, good uniformity, high orientation degree, low crystallinity, sufficient orientation of a crystalline region but low orientation of an amorphous region, and easier color absorption and more uniformity in dyeing compared with FDY.
No. CN104109939B discloses a production process of a coconut carbon fiber raschel blanket. A production process of a coconut carbon fiber raschel blanket adopts coconut carbon fiber textured yarn with the specification of 140D/70F-160/144F as wool yarn, polyester textured yarn with the specification of 150D/144F as ground yarn, a raschel blanket semi-finished product is produced on a double-needle bed warp knitting machine, then the raschel blanket semi-finished product is subjected to biscuit dyeing or printing treatment, and then after-finishing treatment, the coconut carbon fiber raschel blanket finished product is obtained. The coconut carbon fiber raschel blanket developed by the technology has obvious characteristics in the aspects of functionality, comfort and the like, particularly, the health-care functionality of the product is well embodied, and the product has a novel product with multiple functions of better adsorbing and deodorizing, emitting far infrared rays, generating negative ions, absorbing moisture and drying quickly and the like.
Disclosure of Invention
The invention provides a preparation method of an HOY high-shrinkage crimped fiber Raschel blanket, which has the advantages of simple preparation method, fine texture of the prepared blanket, fluffy hand feeling, difficult hair falling, no pilling, smooth and flat woolen surface, clear texture, good drapability, softness, elasticity, unique fulling property and wrinkle resistance.
The specific technical scheme of the invention is as follows: a preparation method of a HOY high-shrinkage crimped fiber Raschel blanket comprises the following steps:
(1) weaving: warping, weaving and splitting the wool yarns and the ground yarns on a warp knitting machine to obtain a Viraschel blanket semi-finished product;
(2) cutting: an automatic hair height detection device is adopted, and a hair height cutting machine is automatically adjusted to cut;
(3) pre-finishing: shaping, high-carding along the hair, ironing and polishing along the hair, and rolling the HOY high-shrinkage crimped fiber raschel blanket semi-finished product;
(4) dyeing: preparing a dye, putting the dye into a slurry tank, allowing the HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to enter a tie-dyeing press roller through the slurry tank, fixing color, and cleaning;
(5) and (3) after finishing: and carrying out the technological processes of drying and shaping, ironing and polishing, brushing, grasping and shearing, compound shaping and ironing and shearing on the dyed HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to obtain the HOY high-shrinkage crimped fiber Raschel blanket finished product.
According to the step (1), the weaving sequence and the weaving structure can reduce the hair falling rate and ensure the strength of the blanket; step (2) cutting the plush beyond the length range in order to ensure the consistency of the length of the woolen blanket plush yarns; step (3) is to obtain crimped fibers and fluffy hand feel and prepare for subsequent dyeing; step (4) adopting a tie-dyeing mode, mainly aiming at enabling the dye to fully enter the fiber, and then fixing color and cleaning; and (5) enabling the dyed felt to have a fluffy hand feeling again.
Preferably, the HOY high-shrinkage crimped fiber is a raw material of wool yarn, and the specification is 200D/30 f; the FOY fiber is a ground yarn raw material and has the specification of 75D/48 f; the shrinkage rate of the warp and weft of the blanket is +/-2.0%, the sunlight resistance grade is 4 grade, the color fastness to washing is 4 grade, and the friction resistance is 4 grade.
Preferably, the specific weaving process in step (1) is as follows:
the weaving speed is 680-710r/min, the drawing density is 8.2-8.3, the crimp width is 2.05 +/-2 cm, and the process number is 380-390 x 4; the let-off amount in the specific weaving process is set as GB1/GB5:2360, GB2/GB4:2050, GB 3: 15500; the height of the semi-finished product is 10-20 mm.
The HOY high-shrinkage crimped fiber of 200D/30f is used as the plush yarn, FOY of 75D/48f is used as the ground yarn, and then warping, weaving and wool cutting are carried out on a warp knitting machine, as described in the step (1), specifically, after two layers of FOY ground yarns of 75D/48f are woven, a layer of HOY high-shrinkage crimped fiber plush yarn of 200D/30f is fully penetrated, so that the weaving sequence and structure can reduce the wool falling rate and ensure the strength of the blanket; the wool height is set to be 10-20mm, so that the rigidity of the wool yarn is guaranteed, the wool breakage rate is reduced, and the water content is reduced.
Preferably, in the cutting process in the step (2), the AB surface tension is 275-.
And (2) cutting the plush beyond the length range in order to ensure the consistency of the length of the woolen blanket plush yarns.
Preferably, the shaping process in the step (3) adopts high-temperature instantaneous reverse hair shaping, the shaping temperature is 150-175 ℃, the speed is 38-42m/min, humidification treatment is carried out in the shaping process, the temperature of the grey cloth which is taken down from the machine is controlled at 50-60 ℃, and the shaped grey cloth is ironed by high-low double ironing and smooth hair, and then high-carding and smooth hair are carried out; the ironing is carried out by adopting a four-in-one ironing and six-positive-eight-negative operation mode of ironing rollers, the ironing pressure is represented by current, the front pressing surface current is 19-21A, and the rear pressing surface current is 22-24A; the cloth discharging tension is 1-1.05mN/m, the pressure of the pressing surface is controlled between 20-22A, the speed is 13.5-14.5m/min, and a W groove is used for a ironing roller.
Step (3) is to obtain crimped fibers, and a fluffy feel, and to prepare for subsequent dyeing. Humidifying the grey cloth in the shaping process, controlling the temperature of the grey cloth below the machine to be 50-60 ℃, performing high-carding and ironing along the hair after the shaped grey cloth is ironed along the hair through high-low double ironing, adjusting the pressing surface and pressure of an ironing machine, adjusting the cloth discharging tension, ensuring that the cloth discharging tension cannot be too tight, and leading the grey cloth to be elongated due to too tight tension; the method comprises the steps of pre-ironing, high combing and then ironing, wherein in the ironing process, the pre-ironing eliminates the internal stress of fibers after shaping, the bulked fibers are completely scattered, the scattered grey cloth is combed by a carding machine, the combing is to comb and scatter the completely opened fibers to obtain a certain fluff degree, the ironing adopts the running mode of four-way ironing and six-way plus and eight-way plus of ironing rollers to carry out ironing, and the visual amount of pressure in an instrument is a current value, so the ironing pressure of the method is represented by current, the front press surface current is 19-21A, and the rear press surface current is 22-24A; the cloth outlet tension is 1-1.05mN/m, the pressure of the pressing surface is controlled between 20-22A, the speed is 14m/min, a W groove is used for a ironing roller, the tension is adjusted to be loose before and tight after being adjusted, and the ironed HOY high-shrinkage polyester fiber has good luster, fluffy fiber, fine hand feeling and higher crimpness.
Preferably, the dye in the step (4) is a uniform mixed solution prepared from S-5BL, S-6G, S-2BL, a thickening agent and water; the viscosity of the mixed solution is 20-30 mPas, the formula corresponding to 100kg of grey cloth is 0.8-0.85G S-5BL, 0.035-0.04G S-6G, 1.03-1.04G S-2BL and 2.3-2.5kg of thickening agent, and the addition amount of the water is up to the viscosity of the mixed solution is 20-30 mPas; the pressure of the left, middle and right three points of the tie-dyeing press roller in the step (4) is 3-3.5 MPa; the color fixation adopts steaming color fixation, the color fixation time is 14-16min, and the temperature is 125-. Washing with a washing machine at a speed of 15-17m/min and a high temperature tank temperature of 75-85 deg.C, adding high-concentration slipping agent 14-16% into the auxiliary agent, making the primary pulp bottom 3.8-4.2kg, and washing with a washing machine under a pressure of 2-2.2 MPa.
And (4) adopting a tie-dyeing mode, mainly aiming at enabling the dye to fully enter the fiber. The dye dosage is determined according to the quality of the grey cloth, the proportioning of the dye is prepared according to the dye dosage corresponding to each 100kg of grey cloth, the proportioning of the water is flexible, and after the dye and the thickening agent are prepared, the proportioning standard of the water is to ensure that the viscosity of the mixed solution reaches 20-30mPa & s. Dyeing after configuring the gray fabric, enabling the gray fabric to smoothly pass through a pulp tank and enter a tie-dyeing compression roller, wherein the oil pressure of three points, namely the left, the middle and the right, of the tie-dyeing compression roller is 3-3.5MPa, the pressure range of the three points is 3-3.5MPa, the color uniformity and the saturation can be achieved, the drying temperature of the gray fabric is 175 ℃, and the drying speed is consistent with the tie-dyeing speed.
Preferably, the method for preparing the HOY high-shrinkage crimped fiber comprises the following steps:
(1) carrying out melt spinning on spinneret orifices to obtain HOY high-shrinkage crimped fibers, wherein the spinning speed is 6000-6500 m/min; adding a heat stabilizer in the melting process;
(2) microwave hydrolysis is carried out on the HOY high-shrinkage crimped fiber obtained in the step (1);
(3) carrying out ultrasonic treatment on the hydrolyzed HOY high-shrinkage crimped fiber obtained in the step (2) in a NaOH solution with the mass fraction of 0.5-1%;
(4) oiling the HOY high-shrinkage crimped fiber obtained in the step (2), wherein the oiling agent contains at least one of fluoropolyether or potassium phosphate, and the mass ratio of the oiling agent is 30-50%;
(5) and (4) winding at high speed to obtain a finished product.
In order to provide higher quality HOY high shrinkage crimped fibers and provide better dyeability, the HOY high shrinkage crimped fibers of the present invention are made as follows. In the invention, the spinning speed is preferably 6000-6500m/min, and the spinning in the interval has the characteristics of better strength, low crystallization degree, good flexibility and easy dyeing; because the cyclic trimer is generated in the polyester preparation process, the cyclic trimer is separated out in the fiber heat setting process and is deposited on a heating roller, so that the friction force is increased and the heating is uneven, and the heat stabilizer is added in the melting process mainly for reducing the separation of the cyclic trimer in the cooling process of the fiber. The fiber obtained in the step (1) has poor hydrophilicity, which is not beneficial to dyeing, so the microwave hydrolysis adopted in the step (2) is to manufacture hydrophilic groups, the microwave has a heating effect, the HOY high-shrinkage crimped fiber in water has a depolymerization reaction under the microwave effect, and the microwave thermal effect enables the thermal motion in the molecule to be accelerated continuously; when the reaction time is continuously prolonged, the molecular thermal motion and the catalyst effect reach a critical connection state in a certain time period, so that the depolymerization of the HOY high-shrinkage crimped fiber is started, in the step (3), in the ultrasonic treatment process in 0.5-1% NaOH solution, the carboxyl exchanges cations, and Na in the terylene+The higher the content is, the larger the subsequent dyeing promotion effect is, the more the ultrasonic effect can enlarge the gaps among the HOY high-shrinkage crimped fiber molecules, and simultaneously, the impurities on the surface of the HOY high-shrinkage crimped fiber can be removed, or the combination degree between the HOY high-shrinkage crimped fiber and the stabilizer is reduced, thereby being beneficial to later-stage dyeing. Since the HOY high shrinkage crimped fiber obtained in step (3) may have fuzzing or static electricity, the HOY high shrinkage crimped fiber is oiled and prevented in step (4)Static electricity and fuzzing are prevented, and 30-50% of fluorine-containing polyether or potassium phosphate is added into oil agent during oiling, so that the dyeing capability of HOY fiber can be promoted. Can ensure that the HOY high-shrinkage crimped fiber has higher strength and dyeing performance and antistatic performance.
Preferably, the heat stabilizer in the step (1) is phosphate potassium salt, and the mass percentage of the phosphate potassium salt is 1-2%; the microwave hydrolysis power in the step (2) is 300-500W, and the time is 1-2 min; and (4) the ultrasonic treatment time in the step (3) is 1-2 min.
1-2% of phosphate potassium salt is added in the melting process and is uniformly stirred, and then spinning is carried out, so that tricyclic matters can be reduced from being separated out, and the dyeing capability of HOY fibers is promoted. The fiber strength is reduced due to the excessive hydrolysis degree, so the scheme preferably adopts the microwave hydrolysis power of 300-500W and the time of 1-2min, and also adopts the ultrasonic treatment in NaOH solution to exchange cations and Na in the fiber+The content becomes large, which is favorable for dyeing.
Compared with the prior art, the invention has the following advantages:
1. the preparation method is simple;
2. the HOY high-shrinkage crimped fiber can be ensured to have higher strength and dyeing property;
3. the prepared blanket has fine texture, antistatic performance, fluffy hand feeling, difficult hair falling, no pilling, smooth and flat woolen surface, clear texture, good drapability, softness, elasticity, unique fulling property and wrinkle resistance.
Detailed Description
The present invention will be further described with reference to the following examples. The devices, materials and methods referred to in this application are those well known in the art, unless otherwise indicated.
Example 1
1. Preparing HOY high-shrinkage crimped fiber:
(1) carrying out melt spinning on spinneret orifices to obtain HOY high-shrinkage crimped fibers, wherein the spinning speed is 6000 m/min; 1% potassium phosphate is added in the melting process;
(2) hydrolyzing the HOY high-shrinkage crimped fiber obtained in the step (1) for 1min under the microwave condition of 500W;
(3) carrying out ultrasonic treatment on the hydrolyzed HOY high-shrinkage crimped fiber obtained in the step (2) in a NaOH solution with the mass fraction of 0.5% for 1 min;
(4) oiling the HOY high-shrinkage crimped fiber obtained in the step (2), wherein the oiling agent contains 30% of fluoropolyether;
(5) and (4) winding at high speed to obtain a finished product.
2. Preparing a raschel blanket by using the HOY high-shrinkage crimped fiber:
(1) the method comprises the following steps of warping, knitting and velvet cutting are carried out on plush yarns and ground yarns in sequence, knitting is carried out by adopting an SGE 288T-D100-inch 18-needle double-needle-bed warp knitting machine, the knitting speed is 700r/min, the let-off quantity is GB1/GB5:2360, GB2/GB4:2050, GB 3: 15500, the draw density is 8.2, the length of the lower cloth is 145 m, the crimp width is 2.05cm, and the Viraschel blanket semi-finished product with the fur height of 10mm is obtained; the specific weaving process is as follows:
(2) cutting: two automatic burr height detection devices of a front cutting surface and a rear cutting surface are adopted, and a burr height cutting machine is automatically adjusted to cut, so that the AB surface tension is 280N; cloth collecting and releasing tension of 150N, cutting speed control of 20m/min, cutter belt speed: 1750 m/min;
(3) pre-finishing: carrying out high-temperature instantaneous reverse hair shaping on the HOY high-shrinkage crimped fiber Raschel blanket semi-finished product, wherein the shaping temperature is designed to be 160 ℃, the speed is 40m/min, humidification treatment is carried out in the shaping process, the temperature of the grey cloth is controlled to be 50-60 ℃, the shaped grey cloth is ironed by high-low double ironing and smoothing hair, then high-carding and smoothing hair ironing and polishing are carried out, the smoothing hair ironing and polishing are carried out by adopting a four-smoothing ironing and pressing roller six-positive-eight-negative operation mode, the ironing and polishing pressure is controlled to be between 21A, the speed is 14m/min, a W groove is used by a pressing roller, and finally, rolling is carried out;
(4) dyeing: the dye is a uniform mixed solution prepared from S-5BL, S-6G, S-2BL, a thickening agent and water, the viscosity of the mixed solution is 25 mPas, the formula corresponding to 100kg of cloth is 0.8G S-5BL, 0.035G S-6G, 1G S-2BL and 2.3kg of the thickening agent (methyl cellulose), and the addition amount of the water is up to the viscosity of the mixed solution being 20 mPas. Putting a dye into a slurry tank, enabling a HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to enter a tie-dyeing press roller through the slurry tank, enabling the pressure of three points of the left, the middle and the right of the tie-dyeing press roller to be 3MPa, then carrying out steaming color fixation, enabling the color fixation time to be 14min and the temperature to be 130 ℃, finally washing with a washing machine at the speed of 15m/min and the temperature of a high-temperature tank to be 80 ℃, adding 15% of a high-concentration fluffy slip agent (GL-3803) (GL-3803) into an auxiliary agent, bottoming by using 4kg of primary pulp, and enabling the pressure of the washing machine press roller to be 2 MPa;
(5) and (3) after finishing: and carrying out the technological processes of drying and shaping, ironing and polishing, brushing, grasping and shearing, compound shaping and ironing and shearing on the dyed HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to obtain the HOY high-shrinkage crimped fiber Raschel blanket finished product.
Example 2 (production of HOY high shrinkage crimped fiber compared with example 1, in which the spinning speed was different)
1. Preparing HOY high-shrinkage crimped fiber:
(1) carrying out melt spinning on spinneret orifices to obtain HOY high-shrinkage crimped fibers, wherein the spinning speed is 6500 m/min; 1% potassium phosphate is added in the melting process;
(2) hydrolyzing the HOY high-shrinkage crimped fiber obtained in the step (1) for 1min under the microwave condition of 500W;
(3) carrying out ultrasonic treatment on the hydrolyzed HOY high-shrinkage crimped fiber obtained in the step (2) in a NaOH solution with the mass fraction of 0.5% for 1 min;
(4) oiling the HOY high-shrinkage crimped fiber obtained in the step (2), wherein the oiling agent contains 30% of fluoropolyether;
(5) and (4) winding at high speed to obtain a finished product.
2. Preparing a raschel blanket by using the HOY high-shrinkage crimped fiber:
(1) the method comprises the following steps of warping, knitting and velvet cutting are carried out on plush yarns and ground yarns in sequence, knitting is carried out by adopting an SGE 288T-D100-inch 18-needle double-needle-bed warp knitting machine, the knitting speed is 700r/min, the let-off quantity is GB1/GB5:2360, GB2/GB4:2050, GB 3: 15500, the draw density is 8.2, the length of the lower cloth is 145 m, the crimp width is 2.05cm, and the Viraschel blanket semi-finished product with the fur height of 10mm is obtained; the specific weaving process is as follows:
(2) cutting: two automatic burr height detection devices of a front cutting surface and a rear cutting surface are adopted, and a burr height cutting machine is automatically adjusted to cut, so that the AB surface tension is 280N; cloth collecting and releasing tension of 150N, cutting speed control of 20m/min, cutter belt speed: 1750 m/min;
(3) pre-finishing: carrying out high-temperature instantaneous reverse hair shaping on the HOY high-shrinkage crimped fiber Raschel blanket semi-finished product, wherein the shaping temperature is designed to be 160 ℃, the speed is 40m/min, humidification treatment is carried out in the shaping process, the temperature of the grey cloth is controlled to be 50-60 ℃, the shaped grey cloth is ironed by high-low double ironing and smoothing hair, then high-carding and smoothing hair ironing and polishing are carried out, the smoothing hair ironing and polishing are carried out by adopting a four-smoothing ironing and pressing roller six-positive-eight-negative operation mode, the ironing and polishing pressure is controlled to be between 21A, the speed is 14m/min, a W groove is used by a pressing roller, and finally, rolling is carried out;
(4) dyeing: the dye is a uniform mixed solution prepared from S-5BL, S-6G, S-2BL, a thickening agent and water, the viscosity of the mixed solution is 25 mPas, the formula corresponding to 100kg of cloth is 0.8G S-5BL, 0.035G S-6G, 1G S-2BL and 2.3kg of the thickening agent (methyl cellulose), and the addition amount of the water is up to the viscosity of the mixed solution being 20 mPas. Putting a dye into a slurry tank, enabling a HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to enter a tie-dyeing press roller through the slurry tank, enabling the pressure of three points of the left, the middle and the right of the tie-dyeing press roller to be 3MPa, then carrying out steaming color fixation, enabling the color fixation time to be 14min and the temperature to be 130 ℃, finally washing with a washing machine at the speed of 15m/min and the temperature of a high-temperature tank to be 80 ℃, adding 15% of a high-concentration fluffy slip agent (GL-3803) into an auxiliary agent, bottoming with 4kg of primary pulp, and enabling the pressure of the washing machine press roller to be 2 MPa;
(5) and (3) after finishing: and carrying out the technological processes of drying and shaping, ironing and polishing, brushing, grasping and shearing, compound shaping and ironing and shearing on the dyed HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to obtain the HOY high-shrinkage crimped fiber Raschel blanket finished product.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still belong to the protection scope of the technical solution of the present invention.
Example 3 (different microwave conditions in the production of HOY high shrinkage crimped fiber compared to example 1)
1. Preparing HOY high-shrinkage crimped fiber:
(1) carrying out melt spinning on spinneret orifices to obtain HOY high-shrinkage crimped fibers, wherein the spinning speed is 6000 m/min; 1% potassium phosphate is added in the melting process;
(2) hydrolyzing the HOY high-shrinkage crimped fiber obtained in the step (1) for 2min under the microwave condition;
(3) carrying out ultrasonic treatment on the hydrolyzed HOY high-shrinkage crimped fiber obtained in the step (2) in a NaOH solution with the mass fraction of 0.5% for 1 min;
(4) oiling the HOY high-shrinkage crimped fiber obtained in the step (2), wherein the oiling agent contains 30% of fluoropolyether;
(5) and (4) winding at high speed to obtain a finished product.
2. Preparing a raschel blanket by using the HOY high-shrinkage crimped fiber:
(1) the method comprises the following steps of warping, knitting and velvet cutting are carried out on plush yarns and ground yarns in sequence, knitting is carried out by adopting an SGE 288T-D100-inch 18-needle double-needle-bed warp knitting machine, the knitting speed is 700r/min, the let-off quantity is GB1/GB5:2360, GB2/GB4:2050, GB 3: 15500, the draw density is 8.2, the length of the lower cloth is 145 m, the crimp width is 2.05cm, and the Viraschel blanket semi-finished product with the fur height of 10mm is obtained; the specific weaving process is as follows:
(2) cutting: two automatic burr height detection devices of a front cutting surface and a rear cutting surface are adopted, and a burr height cutting machine is automatically adjusted to cut, so that the AB surface tension is 280N; cloth collecting and releasing tension of 150N, cutting speed control of 20m/min, cutter belt speed: 1750 m/min;
(3) pre-finishing: carrying out high-temperature instantaneous reverse hair shaping on the HOY high-shrinkage crimped fiber Raschel blanket semi-finished product, wherein the shaping temperature is designed to be 160 ℃, the speed is 40m/min, humidification treatment is carried out in the shaping process, the temperature of the grey cloth is controlled to be 50-60 ℃, the shaped grey cloth is ironed by high-low double ironing and smoothing hair, then high-carding and smoothing hair ironing and polishing are carried out, the smoothing hair ironing and polishing are carried out by adopting a four-smoothing ironing and pressing roller six-positive-eight-negative operation mode, the ironing and polishing pressure is controlled to be between 21A, the speed is 14m/min, a W groove is used by a pressing roller, and finally, rolling is carried out;
(4) dyeing: the dye is a uniform mixed solution prepared from S-5BL, S-6G, S-2BL, a thickening agent and water, the viscosity of the mixed solution is 25 mPas, the formula corresponding to 100kg of cloth is 0.8G S-5BL, 0.035G S-6G, 1G S-2BL and 2.3kg of the thickening agent (methyl cellulose), and the addition amount of the water is up to the viscosity of the mixed solution being 20 mPas. Putting a dye into a slurry tank, enabling a HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to enter a tie-dyeing press roller through the slurry tank, enabling the pressure of three points of the left, the middle and the right of the tie-dyeing press roller to be 3MPa, then carrying out steaming color fixation, enabling the color fixation time to be 14min and the temperature to be 130 ℃, finally washing with a washing machine at the speed of 15m/min and the temperature of a high-temperature tank to be 80 ℃, adding 15% of a high-concentration fluffy slip agent (GL-3803) into an auxiliary agent, bottoming with 4kg of primary pulp, and enabling the pressure of the washing machine press roller to be 2 MPa;
(5) and (3) after finishing: and carrying out the technological processes of drying and shaping, ironing and polishing, brushing, grasping and shearing, compound shaping and ironing and shearing on the dyed HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to obtain the HOY high-shrinkage crimped fiber Raschel blanket finished product.
Example 4 (in contrast to example 1, the viscosity of the dye was different in the method of producing Raschel blankets)
1. Preparing HOY high-shrinkage crimped fiber:
(1) carrying out melt spinning on spinneret orifices to obtain HOY high-shrinkage crimped fibers, wherein the spinning speed is 6000 m/min; 1% potassium phosphate is added in the melting process;
(2) hydrolyzing the HOY high-shrinkage crimped fiber obtained in the step (1) for 1min under the microwave condition of 500W;
(3) carrying out ultrasonic treatment on the hydrolyzed HOY high-shrinkage crimped fiber obtained in the step (2) in a NaOH solution with the mass fraction of 0.5% for 1 min;
(4) oiling the HOY high-shrinkage crimped fiber obtained in the step (2), wherein the oiling agent contains 30% of fluoropolyether;
(5) and (4) winding at high speed to obtain a finished product.
2. Preparing a raschel blanket by using the HOY high-shrinkage crimped fiber:
(1) the method comprises the following steps of warping, knitting and velvet cutting are carried out on plush yarns and ground yarns in sequence, knitting is carried out by adopting an SGE 288T-D100-inch 18-needle double-needle-bed warp knitting machine, the knitting speed is 700r/min, the let-off quantity is GB1/GB5:2360, GB2/GB4:2050, GB 3: 15500, the draw density is 8.2, the length of the lower cloth is 145 m, the crimp width is 2.05cm, and the Viraschel blanket semi-finished product with the fur height of 10mm is obtained; the specific weaving process is as follows:
(2) cutting: two automatic burr height detection devices of a front cutting surface and a rear cutting surface are adopted, and a burr height cutting machine is automatically adjusted to cut, so that the AB surface tension is 280N; cloth collecting and releasing tension of 150N, cutting speed control of 20m/min, cutter belt speed: 1750 m/min;
(3) pre-finishing: carrying out high-temperature instantaneous reverse hair shaping on the HOY high-shrinkage crimped fiber Raschel blanket semi-finished product, wherein the shaping temperature is designed to be 160 ℃, the speed is 40m/min, humidification treatment is carried out in the shaping process, the temperature of the grey cloth is controlled to be 50-60 ℃, the shaped grey cloth is ironed by high-low double ironing and smoothing hair, then high-carding and smoothing hair ironing and polishing are carried out, the smoothing hair ironing and polishing are carried out by adopting a four-smoothing ironing and pressing roller six-positive-eight-negative operation mode, the ironing and polishing pressure is controlled to be between 21A, the speed is 14m/min, a W groove is used by a pressing roller, and finally, rolling is carried out;
(4) dyeing: the dye is a uniform mixed solution prepared from S-5BL, S-6G, S-2BL, a thickening agent and water, the viscosity of the mixed solution is 25 mPas, the formula corresponding to 100kg of cloth is 0.8G S-5BL, 0.035G S-6G, 1G S-2BL and 2.3kg of the thickening agent (methyl cellulose), and the addition amount of the water is up to the viscosity of the mixed solution of 25 mPas. Putting a dye into a slurry tank, enabling a HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to enter a tie-dyeing press roller through the slurry tank, enabling the pressure of three points of the left, the middle and the right of the tie-dyeing press roller to be 3MPa, then carrying out steaming color fixation, enabling the color fixation time to be 14min and the temperature to be 130 ℃, finally washing with a washing machine at the speed of 15m/min and the temperature of a high-temperature tank to be 80 ℃, adding 15% of a high-concentration fluffy slip agent (GL-3803) into an auxiliary agent, bottoming with 4kg of primary pulp, and enabling the pressure of the washing machine press roller to be 2 MPa;
(5) and (3) after finishing: and carrying out the technological processes of drying and shaping, ironing and polishing, brushing, grasping and shearing, compound shaping and ironing and shearing on the dyed HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to obtain the HOY high-shrinkage crimped fiber Raschel blanket finished product.
Example 4 (different setting temperature in the method of manufacturing Raschel blanket compared to example 1)
1. Preparing HOY high-shrinkage crimped fiber:
(1) carrying out melt spinning on spinneret orifices to obtain HOY high-shrinkage crimped fibers, wherein the spinning speed is 6000 m/min; 1% potassium phosphate is added in the melting process;
(2) hydrolyzing the HOY high-shrinkage crimped fiber obtained in the step (1) for 1min under the microwave condition of 500W;
(3) carrying out ultrasonic treatment on the hydrolyzed HOY high-shrinkage crimped fiber obtained in the step (2) in a NaOH solution with the mass fraction of 0.5% for 1 min;
(4) oiling the HOY high-shrinkage crimped fiber obtained in the step (2), wherein the oiling agent contains 30% of fluoropolyether;
(5) and (4) winding at high speed to obtain a finished product.
2. Preparing a raschel blanket by using the HOY high-shrinkage crimped fiber:
(1) the method comprises the following steps of warping, knitting and velvet cutting are carried out on plush yarns and ground yarns in sequence, knitting is carried out by adopting an SGE 288T-D100-inch 18-needle double-needle-bed warp knitting machine, the knitting speed is 700r/min, the let-off quantity is GB1/GB5:2360, GB2/GB4:2050, GB 3: 15500, the draw density is 8.2, the length of the lower cloth is 145 m, the crimp width is 2.05cm, and the Viraschel blanket semi-finished product with the fur height of 10mm is obtained; the specific weaving process is as follows:
(2) cutting: two automatic burr height detection devices of a front cutting surface and a rear cutting surface are adopted, and a burr height cutting machine is automatically adjusted to cut, so that the AB surface tension is 280N; cloth collecting and releasing tension of 150N, cutting speed control of 20m/min, cutter belt speed: 1750 m/min;
(3) pre-finishing: carrying out high-temperature instantaneous reverse hair shaping on the HOY high-shrinkage crimped fiber Raschel blanket semi-finished product, wherein the shaping temperature is designed to be 170 ℃, the speed is 40m/min, humidification treatment is carried out in the shaping process, the temperature of the grey cloth is controlled to be 50-60 ℃, the shaped grey cloth is ironed by high-low double ironing and smoothing hair, then high-carding and smoothing hair ironing and polishing are carried out, the smoothing hair ironing and polishing are carried out by adopting a four-smoothing ironing and pressing roller six-positive-eight-negative operation mode, the ironing and polishing pressure is controlled to be between 21A, the speed is 14m/min, a W groove is used by a pressing roller, and finally, rolling is carried out;
(4) dyeing: the dye is a uniform mixed solution prepared from S-5BL, S-6G, S-2BL, a thickening agent and water, the viscosity of the mixed solution is 25 mPas, the formula corresponding to 100kg of cloth is 0.8G S-5BL, 0.035G S-6G, 1G S-2BL and 2.3kg of the thickening agent (methyl cellulose), and the addition amount of the water is up to the viscosity of the mixed solution being 20 mPas. Putting a dye into a slurry tank, enabling a HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to enter a tie-dyeing press roller through the slurry tank, enabling the pressure of three points of the left, the middle and the right of the tie-dyeing press roller to be 3MPa, then carrying out steaming color fixation, enabling the color fixation time to be 14min and the temperature to be 130 ℃, finally washing with a washing machine at the speed of 15m/min and the temperature of a high-temperature tank to be 80 ℃, adding 15% of a high-concentration fluffy slip agent (GL-3803) into an auxiliary agent, bottoming with 4kg of primary pulp, and enabling the pressure of the washing machine press roller to be 2 MPa;
(5) and (3) after finishing: and carrying out the technological processes of drying and shaping, ironing and polishing, brushing, grasping and shearing, compound shaping and ironing and shearing on the dyed HOY high-shrinkage crimped fiber Raschel blanket semi-finished product to obtain the HOY high-shrinkage crimped fiber Raschel blanket finished product.
Comparative example 1
Comparative example 1 is different from example 1 in that comparative example 1 does not add a stabilizer in step (1) when producing a HOY high shrinkage crimped fiber.
Comparative example 2
Comparative example 2 is different from example 1 in that comparative example 1 does not perform microwave hydrolysis in step (2) when producing a HOY high shrinkage crimped fiber.
Comparative example 3
Comparative example 3 is different from example 1 in that comparative example 1 does not sonicate in NaOH solution in step (3) when producing HOY high shrinkage crimped fiber.
The dye uptake, defined as the ratio of the amount of dye that is loaded onto the fiber during dyeing to the total amount of dye in the initial dye bath, is determined. The measurement results are shown in table 1 below.
TABLE 1
Numbering
Color rendering ratio
Example 1
92.2％
Example 2
91.6％
Example 3
92.1％
Example 4
90.8％
Example 5
91.7％
Comparative example 1
79.5％
Comparative example 2
73.2％
Comparative example 3
75.4％
Comparing example 1 with comparative example 1, it can be known that adding a stabilizer in the preparation process of the HOY high shrinkage crimped fiber can reduce the precipitation of a cyclic trimer, and is helpful for increasing the dye uptake in the dyeing process; comparing example 1 with comparative example 2, it can be known that microwave hydrolysis in the preparation process of the HOY high-shrinkage crimped fiber can enable the HOY high-shrinkage crimped fiber to possess more hydrophilic groups, and can promote the improvement of dye uptake; comparing example 1 with comparative example 3, it can be seen that the ultrasonic treatment in NaOH solution during the preparation of the HOY high shrinkage crimped fiber can make the HOY high shrinkage crimped fiber acquire Na+And the gaps between the fiber molecules can be increased, and the dye uptake can be improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still belong to the protection scope of the technical solution of the present invention.
