1. The foam mercerizing foaming system is characterized in that the preparation raw materials of the foam mercerizing foaming system comprise the following components in parts by weight: 2-6 parts of an alkali-resistant foaming agent, 2-3 parts of a foam stabilizer, 1-2 parts of a hydrophilic softening agent, 20-30 parts of an alkali liquor and 60-77 parts of water.

2. The foamed mercerized foam system of claim 1, wherein the foaming agent is selected from any one of anionic surfactant, nonionic surfactant or zwitterionic surfactant or a combination of at least two thereof;

preferably, the foaming agent is a combination of anionic, nonionic and zwitterionic surfactants;

preferably, the anionic surfactant is selected from any one or a combination of at least two of sodium dodecyl benzene sulfonate, sodium lauryl alcohol ether sulfate or sodium lauryl sulfate;

preferably, the nonionic surfactant is selected from any one or a combination of at least two of isooctanol sodium sulfate, alkyl polyglycoside or polyoxyethylene lauramide;

preferably, the zwitterionic surfactant is selected from any one of or a combination of at least two of dodecyl dimethyl betaine, dodecyl diethylammonium inner propionate or lauramidopropyl betaine.

3. A foamed mercerising foaming system according to claim 1 or 2, wherein the foam stabilizer is selected from any one of lauric acid diethanolamide, lauryl dimethyl amine oxide or coco diethanolamide or a combination of at least two thereof.

4. A foamed mercerized foam system according to any one of claims 1-3, wherein said hydrophilic softener is selected from silicone softener T875, hydrophilic silicone oil softener 1260 or amino silicone crude 8034, or a combination of at least two thereof.

5. A foamed mercerizing foaming system according to any of claims 1 to 4, wherein the lye is sodium hydroxide solution;

preferably, the mass concentration of the sodium hydroxide solution is 260-280 g/L.

6. The foam mercerizing foaming system of any one of claims 1-5, wherein the foaming ratio of the foam mercerizing foaming system is (4-6): 1;

preferably, the viscosity of the foam in the foam mercerizing foaming system is (5-20) x 10^-3Pa·s。

7. A method of preparing a foamed mercerized foaming system according to any one of claims 1 to 6, wherein the method comprises the following steps:

(1) mixing an alkali-resistant foaming agent, a foam stabilizer, a hydrophilic softening agent, an alkali liquor and water to obtain a mixed solution;

(2) and (2) foaming the mixed solution obtained in the step (1) to obtain the foam mercerizing foaming system.

8. The method for preparing the polyurethane foam according to claim 7, wherein the foaming method comprises stirring foaming through a foaming device;

preferably, the foamer is selected from a mesh static foamer or a radial dynamic foamer;

preferably, the stirring comprises low speed stirring and high speed stirring;

preferably, the stirring speed of the low-speed stirring is 300-500 rpm;

preferably, the low-speed stirring time is 2-3 min;

preferably, the stirring speed of the high-speed stirring is 1500-2500 rpm.

9. The method according to claim 7 or 8, comprising the following steps:

(1) uniformly mixing an alkali-resistant foaming agent, a foam stabilizer, a hydrophilic softening agent, an alkali liquor and water to obtain a mixed solution;

(2) stirring the mixed solution obtained in the step (1) for 2-3 min at a stirring speed of 300-500 rpm by a foam maker, increasing the stirring speed to 1500-2500 rpm, and foaming to obtain a foaming ratio of (4-6): 1, and a foam viscosity of (5-20) × 10^-3Pa s foam mercerizing foaming system.

10. Use of a foamed mercerised foam system according to any of claims 1-6 in the mercerisation of fabrics;

preferably, the mercerization method comprises the following steps: coating the foam mercerizing foaming system on the surface of the fabric, and carrying out mercerizing treatment;

preferably, the coating amount of the coating is 200-400 g/m²；

Preferably, the mercerizing temperature is 20-30 ℃;

preferably, the mercerization time is 5-8 min.

Background

In the 21 st century, "green, environment-friendly and low-carbon" has become the subject of clean production in the textile printing and dyeing industry, and the textile market with fierce competition nowadays requires that a printing and dyeing mill reduces cost, reduces energy consumption, improves yield and reduces the influence on the environment by improving and innovating processing technology. Mercerizing is a specific processing technology for cellulose fibers, cotton fibers are changed in a supermolecular structure and a morphological structure after cotton cloth or cotton yarn is mercerized, and the size stability, the dyeing property, the tensile strength and the like of cotton textiles are improved to a certain extent besides good luster.

At present, most textile printing and dyeing enterprises still use the traditional alkali mercerization process of padding with concentrated alkali solution, under the condition of concentrated alkali, fibers expand to break hydrogen bonds between cellulose molecular chains and weaken Van der Waals force, the molecular chains are rearranged and oriented to form new bonds, the size stability of the fabric is improved, the shrinkage rate is reduced, durable luster is obtained, and the mercerization effect is achieved. For example, CN108754764A discloses a manufacturing process of an acid-resistant colored woven cloth, which comprises the following steps: (1) acid-resistant finishing; (2) preparing warp yarns and weft yarns of the colored woven cloth; (3) weaving yarn-dyed fabric; (4) singeing; (5) desizing; (6) mercerizing; (7) printing; (8) and (5) post-treatment. The mercerizing is specifically low-alkali thermal mercerizing, wherein an aqueous alkali is a 125-138 g/L sodium hydroxide solution, the temperature is 85-90 ℃, the time is 5-10 min, and then the mercerizing is washed by dilute sulfuric acid.

CN104153221A discloses a dyeing and finishing method for a corn fiber/cotton fiber blended fabric, wherein the blended fabric needs to be subjected to dyeing pretreatment before dyeing, and the pretreatment comprises the working procedures of desizing, bleaching, singeing and mercerizing. According to the technical scheme, the mercerizing process comprises the steps of putting the singed corn fiber/cotton fiber blended fabric into a soaking tank of caustic soda solution with the concentration of 180-200 g/L for soaking, using a straight roller cloth clip for mercerizing, then using hot water at 85 ℃, washing in cold water, finally drying and rolling, carrying out online monitoring on the pH value in the whole mercerizing process, and finally controlling the pH value of cropping to be 9.

The traditional alkali mercerization process has the advantages of large consumption of concentrated alkali and high production cost, and the fabric subjected to mercerization is easy to curl and break. Therefore, foam mercerization is generated due to operation, foam mercerization refers to the mercerization of fabrics by using foam to replace working solution, a foaming agent is added into a solution containing strong base, air is introduced by adopting a mechanical stirring method to foam the solution to form foam, then the foam is uniformly coated on the fabrics by a foam applicator to effectively reduce the liquid carrying rate of the fabrics, a single-side or double-side coating mode can be selected to realize single-side mercerization or double-side mercerization, the mercerization liquid foam is rapidly cracked after contacting the fabrics, and alkali liquor is absorbed by the fabrics under the action of capillary effect; meanwhile, the impact force generated by the foam breakage also contributes to the penetration of the alkali liquor in the fabric.

Compared with the conventional concentrated alkali mercerization, the foam mercerization has the main advantages that the concentrated alkali dosage of the foam mercerization is 30% of that of the conventional mercerization, defects that the conventional mercerization is easy to curl and break are overcome, the color change of the mercerization is small, the color is bright, the reverse side is not easy to pollute and stain, only a small amount of foams are remained in the foam mercerization processing, the concentration of working solution after the foams break is the same as the formula concentration, and the foams can be recycled, so that the energy can be saved, the sewage treatment burden can be reduced, the alkali dosage can be saved, and the cost can be reduced. For example, CN104631008A discloses a denim foam mercerizing process. The specific process flow is as follows: (1) the process flow is as follows: pulp returning → singeing → foam wetting → inclined penetration → spray washing → drying → preshrinking. Although the technical scheme discloses a foam mercerizing process, the technical problems that foam is easy to break and the mercerizing effect is poor in the foam mercerizing process are not solved.

Because the liquid carrying rate of foam in the foam mercerizing process is low, the dosage of alkali liquor must be increased to achieve the same effect as that of the conventional mercerizing process, the concentration of the alkali liquor is generally more than 250g/L, and under the condition, most of the conventional foaming agent and the penetrating agent are precipitated, so that foam is difficult to form. Therefore, how to design a foam mercerizing foaming system to enable the foam mercerizing foaming system to have a better mercerizing effect becomes a technical problem to be solved urgently at present.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a foam mercerizing foaming system and a preparation method and application thereof. The invention selects the alkali-resistant foaming agent through the design of the components in the foam mercerizing foaming system, and further uses the foam stabilizer and the hydrophilic softener to prepare the foam mercerizing foaming system with better stability.

In order to achieve the purpose, the invention adopts the following technical scheme:

in a first aspect, the invention provides a foam mercerizing foaming system, and the preparation raw materials of the foam mercerizing foaming system comprise the following components in parts by weight: 2-6 parts of an alkali-resistant foaming agent, 2-3 parts of a foam stabilizer, 1-2 parts of a hydrophilic softening agent, 20-30 parts of an alkali liquor and 60-77 parts of water.

According to the invention, through the design of the components in the foam mercerizing foaming system, the alkali-resistant foaming agent is selected, and the foam mercerizing foaming system prepared by using the foam stabilizer and the hydrophilic softener has better stability, and the fabric treated by the foam mercerizing foaming system provided by the invention has better mercerizing effect and mechanical property.

In the invention, the foam stabilizer is used, so that a foam mercerizing foaming system has better stability, the foam has longer retention time when the fabric is subjected to mercerizing treatment, and the problems of non-penetration and non-uniformity of mercerizing in foam mercerizing are solved; the use of the hydrophilic softener can help alkali liquor to permeate into the interior of the fabric, thereby improving the mercerizing effect and reducing the mercerizing time of the fabric.

In the present invention, the alkali-resistant foaming agent may be present in an amount of 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, or the like by weight.

The foam stabilizer can be 2 parts, 2.1 parts, 2.2 parts, 2.3 parts, 2.4 parts, 2.5 parts, 2.6 parts, 2.7 parts, 2.8 parts, 2.9 parts or 3 parts by weight.

The weight portion of the hydrophilic softening agent can be 1 portion, 1.1 portion, 1.2 portions, 1.3 portions, 1.4 portions, 1.5 portions, 1.6 portions, 1.7 portions, 1.8 portions, 1.9 portions or 2 portions, etc.

The weight portion of the alkali liquor can be 20 portions, 21 portions, 22 portions, 23 portions, 24 portions, 25 portions, 26 portions, 27 portions, 28 portions, 29 portions or 30 portions, etc.

The water may be present in an amount of 60 parts, 62 parts, 64 parts, 66 parts, 68 parts, 70 parts, 71 parts, 72 parts, 74 parts, 76 parts, 77 parts, or the like by weight.

The following is a preferred technical solution of the present invention, but not a limitation to the technical solution provided by the present invention, and the object and advantageous effects of the present invention can be better achieved and achieved by the following preferred technical solution.

In a preferred embodiment of the present invention, the foaming agent is selected from any one of an anionic surfactant, a nonionic surfactant, or a zwitterionic surfactant, or a combination of at least two thereof.

Preferably, the foaming agent is a combination of anionic, nonionic and zwitterionic surfactants.

According to the invention, through the matching use of the three surfactants, the prepared foam mercerizing foaming system has a larger foaming ratio, and the fabric further subjected to mercerizing treatment by the foam mercerizing foaming system has better mercerizing effect and mechanical property.

Preferably, the anionic surfactant is selected from any one of sodium dodecyl benzene sulfonate, sodium lauryl alcohol ether sulfate or sodium lauryl alcohol sulfate or a combination of at least two of the above.

Preferably, the nonionic surfactant is selected from any one of sodium isooctanolate sulfate, alkyl polyglycoside or polyoxyethylene lauramide or a combination of at least two of the above.

Preferably, the zwitterionic surfactant is selected from any one of or a combination of at least two of dodecyl dimethyl betaine, dodecyl diethylammonium inner propionate or lauramidopropyl betaine.

In a preferred embodiment of the present invention, the foam stabilizer is selected from any one or a combination of at least two of lauric acid diethanolamide, dodecyl dimethyl amine oxide, and cocoyl diethanolamide.

As a preferred technical solution of the present invention, the hydrophilic softener is selected from any one of or a combination of at least two of silicone softener T875, hydrophilic silicone oil softener 1260 or amino silicone crude oil 8034.

As a preferred technical scheme of the invention, the alkali liquor is sodium hydroxide solution.

Preferably, the mass concentration of the sodium hydroxide solution is 260-280 g/L, for example, 260g/L, 262g/L, 264g/L, 266g/L, 268g/L, 270g/L, 272g/L, 274g/L, 278g/L or 280 g/L.

In a preferred embodiment of the present invention, the foaming ratio of the foamed mercerized foaming system is (4-6: 1), and may be, for example, 4:1, 4.2:1, 4.4:1, 4.6:1, 4.8:1, 5:1, 5.2:1, 5.4:1, 5.6:1, 5.8:1, or 6: 1.

Preferably, the viscosity of the foam in the foam mercerizing foaming system is (5-20) x 10^-3Pa · s, for example, may be 5X 10^-3Pa·s、6×10^-3Pa·s、8×10^-3Pa·s、10×10^-3Pa·s、12×10^-3Pa·s、14×10^-3Pa·s、16×10^-3Pa·s、18×10^-3Pa · s or 20X 10^-3Pa · s, and the like.

In a second aspect, the present invention provides a method for preparing a foamed mercerized foaming system according to the first aspect, comprising the following steps:

(1) mixing an alkali-resistant foaming agent, a foam stabilizer, a hydrophilic softening agent, an alkali liquor and water to obtain a mixed solution;

(2) and (2) foaming the mixed solution obtained in the step (1) to obtain the foam mercerizing foaming system.

In a preferred embodiment of the present invention, the foaming process is performed by stirring and foaming through a foaming machine.

Preferably, the foamer is selected from a mesh static foamer or a radial dynamic foamer.

Preferably, the agitation includes low speed agitation and high speed agitation.

Preferably, the stirring speed of the low-speed stirring is 300-500 rpm, for example, 300rpm, 320rpm, 340rpm, 360rpm, 380rpm, 400rpm, 420rpm, 440rpm, 460rpm, 480rpm or 500rpm, and the like.

Preferably, the time of the low-speed stirring is 2-3 min, for example, 2min, 2.1min, 2.2min, 2.3min, 2.4min, 2.5min, 2.6min, 2.7min, 2.8min, 2.9min or 3min, etc.

Preferably, the stirring speed of the high-speed stirring is 1500 to 2500rpm, and may be 1500rpm, 1600rpm, 1700rpm, 1800rpm, 1900rpm, 2000rpm, 2100rpm, 2200rpm, 2300rpm, 2400rpm, 2500rpm, or the like, for example.

As a preferred technical scheme of the invention, the preparation method specifically comprises the following steps:

(1) uniformly mixing an alkali-resistant foaming agent, a foam stabilizer, a hydrophilic softening agent, an alkali liquor and water to obtain a mixed solution;

(2) stirring the mixed solution obtained in the step (1) for 2-3 min at a stirring speed of 300-500 rpm by a foam maker, increasing the stirring speed to 1500-2500 rpm, and foaming to obtain a foaming ratio of (4-6): 1, and a foam viscosity of (5-20) × 10^-3Pa s foam mercerizing foaming system.

In a third aspect, the present invention provides the use of a foamed mercerised foam system as described in the first aspect, in the mercerisation of fabrics.

Preferably, the mercerization method comprises the following steps: and (3) coating the foam mercerizing foaming system on the surface of the fabric, and carrying out mercerizing treatment.

Preferably, the coating amount of the coating is 200-400 g/m²For example, it may be 200g/m²、220g/m²、240g/m²、260g/m²、280g/m²、300g/m²、320g/m²、340g/m²、360g/m²、380g/m²Or 400g/m²And the like.

Preferably, the mercerization temperature is 20-30 ℃, for example, 20 ℃, 21 ℃, 22 ℃, 23 ℃, 24 ℃, 25 ℃, 26 ℃, 27 ℃, 28 ℃, 29 ℃ or 30 ℃ and the like.

Preferably, the mercerization time is 5-8 min, for example, 5min, 6min, 7min or 8 min.

In the mercerization of the fabric using the foam mercerized foam system of the present invention, the fabric is stretched to prevent the fabric from being recovered after the mercerization, and the stretched length is increased by 3% to 6% from the original fabric length, for example, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, or 6%.

In the invention, the mercerization process also comprises a post-treatment step, and the post-treatment method comprises stretching and leaching, alkali removal in an alkali removal box, neutralization and water washing, washing and squeezing and drying.

Compared with the prior art, the invention has the following beneficial effects:

(1) according to the invention, through the design of components in a foam mercerizing foaming system, the selection of an alkali-resistant foaming agent and the further use of a foam stabilizer and a hydrophilic softener, the prepared foam mercerizing foaming system has a good mercerizing effect, the mercerizing barium value is 135-146, the gloss is 62-71, and the dye adsorption capacity is 2.72-2.90 g (100g fiber)^-1；

(2) According to the invention, through the design of the components in the foam mercerizing foaming system, the prepared foam mercerizing foaming system has better stability, and the foam has longer retention time when the fabric is subjected to mercerizing treatment, so that the problems of non-penetration and non-uniformity of mercerizing in the foam mercerizing process are solved;

(3) in the mercerizing process of the fabric, the dosage of alkali liquor of a foam mercerizing foam system adopted by the method is 15% -30% of that of the conventional mercerizing system, simultaneously the defects that the conventional mercerizing system is easy to curl and break are overcome, and the performance of a mercerized product is greatly improved;

(4) the foam mercerizing foaming system provided by the invention has less alkali liquor and water, thereby saving energy, lightening sewage treatment burden, saving alkali consumption and reducing cost.

Detailed Description

The technical solution of the present invention is further illustrated by the following specific examples. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.

Some of the component sources in the examples and comparative examples are as follows:

silicone softener T875: guangzhou Xu beautification technology Limited;

hydrophilic silicone oil softener 1260: jiahong silicone science and technology, Inc., Dongguan city.

Example 1

The embodiment provides a foam mercerizing foaming system and a preparation method thereof, wherein the foam mercerizing foaming system comprises the following components in parts by weight: 2 parts of sodium dodecyl benzene sulfonate, 2 parts of isooctyl alcohol sodium sulfate, 2 parts of dodecyl dimethyl betaine, 2 parts of lauric acid diethanol amide, 12601 parts of hydrophilic silicone oil softener, 25 parts of sodium hydroxide solution (260g/L) and 66 parts of water.

The preparation method of the foam mercerizing foaming system comprises the following steps:

(1) uniformly mixing sodium dodecyl benzene sulfonate, isooctyl alcohol sodium sulfate, dodecyl dimethyl betaine, lauric acid diethanol amide, hydrophilic silicone oil softener 1260, sodium hydroxide solution and water to obtain mixed solution;

(2) stirring the mixed solution obtained in the step (1) for 3min at a stirring speed of 450rpm by a net type static foam maker, increasing the stirring speed to 2200rpm, and foaming to obtain a foaming ratio of 5.15:1 and a foam viscosity of 20 × 10^-3Pa s foam mercerizing foaming system.

Example 2

The embodiment provides a foam mercerizing foaming system and a preparation method thereof, wherein the foam mercerizing foaming system comprises the following components in parts by weight: 1 part of anionic surfactant, 0.5 part of nonionic surfactant, 0.5 part of zwitterionic surfactant, 2.5 parts of dodecyl dimethyl amine oxide, T8751.5 parts of silicone softener, 20 parts of sodium hydroxide solution (260g/L) and 74 parts of water.

The preparation method of the foam mercerizing foaming system comprises the following steps:

(1) uniformly mixing an anionic surfactant, a nonionic surfactant, a zwitterionic surfactant, dodecyl dimethyl amine oxide, an organosilicon softener T875, a sodium hydroxide solution and water to obtain a mixed solution;

(2) stirring the mixed solution obtained in the step (1) for 3min at a stirring speed of 300rpm by a net type static foaming device, increasing the stirring speed to 1500rpm, and foaming to obtain a foaming ratio of 4:1 and a foam viscosity of 5 × 10^-3Pa s foam mercerizing foaming system.

Example 3

The embodiment provides a foam mercerizing foaming system and a preparation method thereof, wherein the foam mercerizing foaming system comprises the following components in parts by weight: 1 part of anionic surfactant, 2 parts of nonionic surfactant, 1 part of zwitterionic surfactant, 3 parts of dodecyl dimethyl amine oxide, T8752 parts of organosilicon softener, 29 parts of sodium hydroxide solution (280g/L) and 60 parts of water.

The preparation method of the foam mercerizing foaming system comprises the following steps:

(1) uniformly mixing an anionic surfactant, a nonionic surfactant, a zwitterionic surfactant, dodecyl dimethyl amine oxide, an organosilicon softener T875, a sodium hydroxide solution and water to obtain a mixed solution;

(2) stirring the mixed solution obtained in the step (1) for 2min at a stirring speed of 500rpm by a radiation type dynamic foaming device, increasing the stirring speed to 2500rpm, and foaming to obtain a foaming ratio of 6:1 and a foam viscosity of 20 multiplied by 10^-3Pa s foam mercerizing foaming system.

Example 4

The embodiment provides a foam mercerizing foaming system and a preparation method thereof, wherein the foam mercerizing foaming system comprises the following components in parts by weight: 5 parts of isooctanol sodium sulfate, 2.8 parts of lauric acid diethanolamide, T8751.2 parts of organosilicon softener, 260g/L sodium hydroxide solution and 77 parts of water.

The preparation method of the foam mercerizing foaming system comprises the following steps:

(1) uniformly mixing isooctanol sodium sulfate, lauric acid diethanolamide, an organosilicone softening agent T875, a sodium hydroxide solution and water to obtain a mixed solution;

(2) stirring the mixed solution obtained in the step (1) for 2.5min at a stirring speed of 400rpm by a radiation type dynamic foaming device, increasing the stirring speed to 2000rpm, and foaming to obtain the foam with a foaming ratio of 5:1 and a foam viscosity of 15 multiplied by 10^-3Pa s foam mercerizing foaming system.

Example 5

The embodiment provides a foam mercerizing foaming system and a preparation method thereof, wherein the foam mercerizing foaming system comprises the following components in parts by weight: 2.5 parts of sodium dodecyl benzene sulfonate, 2 parts of dodecyl dimethyl amine oxide, 12601.5 parts of hydrophilic silicone oil softener, 30 parts of sodium hydroxide solution (260g/L) and 64 parts of water.

The preparation method of the foam mercerizing foaming system comprises the following steps:

(1) uniformly mixing sodium dodecyl benzene sulfonate, dodecyl dimethyl amine oxide, hydrophilic silicone oil softener 1260, sodium hydroxide solution (270g/L) and water to obtain a mixed solution;

(2) stirring the mixed solution obtained in the step (1) for 2min at a stirring speed of 450rpm by a net type static foaming device, increasing the stirring speed to 1800rpm, and foaming to obtain a foaming ratio of 4.7:1 and a foam viscosity of 12 x 10^-3Pa s foam mercerizing foaming system.

Example 6

The embodiment provides a foam mercerizing foaming system and a preparation method thereof, and the difference from the embodiment 1 is that the weight of the foam mercerizing foaming system does not contain dodecyl dimethyl betaine, the weight part of sodium dodecyl benzene sulfonate is 3 parts, and the weight part of isooctyl alcohol sodium sulfate is 3 parts; other conditions were the same as in example 1;

the foam mercerizing foaming system prepared in the example has the foaming ratio of 5.15:1 and the foam viscosity of 20 x 10^{- 3}Pa·s。

Example 7

The embodiment provides a foam mercerizing foaming system and a preparation method thereof, and the difference from the embodiment 1 is only that the weight components of the foam mercerizing foaming body do not contain isooctyl alcohol sodium sulfate, the weight part of sodium dodecyl benzene sulfonate is 3 parts, and the weight part of dodecyl dimethyl betaine is 3 parts; other conditions were the same as in example 1;

the foam mercerizing foaming system prepared in the example has the foaming ratio of 5.31:1 and the foam viscosity of 12 x 10^{- 3}Pa·s。

Example 8

The embodiment provides a foam mercerizing foaming system and a preparation method thereof, and the difference from the embodiment 1 is that the weight of the foam mercerizing foaming system does not contain sodium dodecyl benzene sulfonate, the weight part of isooctyl alcohol sodium sulfate is 3 parts, and the weight part of dodecyl dimethyl betaine is 3 parts; other conditions were the same as in example 1;

the foam mercerizing foaming system prepared in the example has the foaming ratio of 5.24:1 and the foam viscosity of 8 x 10^{- 3}Pa·s。

Comparative example 1

The comparative example provides a foam mercerizing foaming system and a preparation method thereof, and is different from the embodiment 1 only in that the components of the foam mercerizing foaming body weight do not contain lauric acid diethanolamide; other conditions were the same as in example 1;

the foaming ratio of the foamed mercerized foaming system prepared by the comparative example is 4.85: 1, foam viscosity 7X 10^{- 3}Pa·s。

Comparative example 2

The comparative example provides a foam mercerizing foaming system and a preparation method thereof, and is different from the embodiment 1 only in that the components of the weight of the foam mercerizing foaming system do not contain a hydrophilic silicone oil softening agent 1260; other conditions were the same as in example 1;

the foaming ratio of the foamed mercerized foaming system prepared by the comparative example is 4.25: 1, foam viscosity 8X 10^{- 3}Pa·s。

Comparative example 3

The comparative example provides a mercerizing agent, which comprises the following components: 12601 parts of hydrophilic silicone oil softener, 27 parts of sodium hydroxide solution (260g/L) and 72 parts of water.

The preparation method of the mercerizing agent comprises the following steps:

and uniformly mixing the hydrophilic silicone oil softening agent 1260, a sodium hydroxide solution and water to obtain the mercerizing agent.

Application example 1

The application example provides a fabric with a mercerized surface, which is prepared by the following method:

stretching the fabric to 6% longer than the original fabric at 25 ℃, then respectively coating the foam mercerizing foaming system provided by the embodiment 1 on the surface of the fabric, carrying out mercerizing treatment for 5min, and then carrying out stretching and leaching, alkali removal in an alkali removal box, neutralization washing, washing and rolling and drying to obtain the fabric with the surface subjected to mercerizing treatment; wherein the coating amount of the coating is 350g/m²。

Application example 2

The application example provides a fabric with a mercerized surface, which is prepared by the following method:

stretching the fabric to increase the length of the fabric by 3% at 25 ℃, then respectively coating the foam mercerizing foaming systems provided by the embodiments 1-8 on the surface of the fabric, carrying out mercerizing treatment for 8min, and then carrying out stretching and leaching, alkali removal in an alkali removal box, neutralization washing, washing and rolling and drying to obtain the fabric with the surface subjected to mercerizing treatment; wherein the coating amount is 200g/m²。

Application example 3

The application example provides a fabric with a mercerized surface, which is prepared by the following method:

stretching the fabric to increase the length of the fabric by 6% at 25 ℃, then respectively coating the foam mercerizing foaming systems provided by the embodiments 1-8 on the surface of the fabric, carrying out mercerizing treatment for 6min, and then carrying out stretching and leaching, alkali removal in an alkali removal box, neutralization washing, washing and rolling and drying to obtain the fabric with the surface subjected to mercerizing treatment; wherein the coating amount of the coating is 400g/m²。

Application examples 4 to 8

Application examples 4 to 8 provide a fabric whose surface has been mercerized, differing from application example 1 only in that foamed mercerized foam systems for coating the surface of the fabric are provided in examples 4 to 8, respectively, and other conditions are the same as in application example 1.

Comparative application examples 1 to 2

Comparative application examples 1-2 provide a surface mercerized fabric, differing from application example 1 only in that the foamed mercerized foaming system for coating the surface of the fabric is provided by comparative examples 1-2, respectively, and other conditions are the same as application example 1.

Comparative application example 3

The comparative application example provides a mercerized fabric, and the real object is prepared by the following method:

and (2) soaking the fabric in the mercerizing agent provided in the comparative example 3 for 7min at 25 ℃, then stretching the fabric to increase the length of the fabric by 6% than that of the original fabric, and then stretching and leaching, alkali removal in an alkali removal box, neutralization and washing, squeezing and drying to obtain the mercerized fabric.

The performance of the fabrics provided in the application examples and the comparative application examples and the fabric without mercerization is tested, and the test standards are as follows:

mercerized barium number: taking mercerized cotton cloth and non-mercerized cotton cloth, putting the mercerized cotton cloth and the non-mercerized cotton cloth into an oven, drying the cotton cloth and the non-mercerized cotton cloth for 90min at 110 ℃, taking out the cotton cloth and cooling the cotton cloth in a dryer to room temperature. Each of the samples was weighed out accurately at 2g, cut into 5 mm. times.5 mm squares, placed in 150mL conical flasks each with a cap, added with 30mL of 0.25mol/L barium hydroxide solution, and dipped with a cap for 2 hours with shaking occasionally. Another 150mL conical flask with a cover is taken, 30mL barium hydroxide solution is added, and the conical flask is placed for 2 hours for blank test. After 2 hours, respectively sucking 10mL of impregnation liquid from each bottle into a triangular flask, adding 2-3 drops of phenolphthalein indicator, titrating with 0.1mol/L hydrochloric acid solution, and recording the volume V of consumed hydrochloric acid when the drops disappear as an end point;

barium value of mercerization ═ V₀-V₁)/(V₀-V₂)×100；

Wherein, V₀Volume (mL) of hydrochloric acid solution consumed for blank test, V₁The volume (mL) of hydrochloric acid solution consumed by mercerized cotton impregnation liquid is V₂The volume (mL) of the hydrochloric acid solution consumed by the mercerized cotton impregnation liquid is shown;

gloss: testing according to GB/T8686-1988, Fabric gloss test method;

dye adsorption amount: preparing 500mg/L active red solution, weighing 2g of cotton fabrics before and after mercerization, respectively placing the cotton fabrics in the active red solution with the temperature of 70 ℃ and the volume of 100mL, taking out the cotton fabrics after 2h, testing the mass concentration of the solution by using a visible spectrophotometer, and calculating the adsorption quantity of the cotton fabrics to dye according to the following formula:

wherein A is₀The initial mass concentration (mg/L) of the dye, A₁The dye mass concentration (mg/L) after 2 hours, V is the volume (L) of the dye liquor, q is the dye adsorption capacity (mg/g), and m is the fabric mass (g);

breaking load: testing according to GB/T3923.1-1997 part 1 Standard of determination strip method of tensile Properties and elongation at break of textile fabrics;

foaming height: the determination is carried out according to GB/T7462-1994 determination of foaming power of the surfactant;

half-life: at 25 ℃, 100mL of foaming stock solution of the foam mercerizing foaming system is placed in a 500mL enamel cup, an electric stirrer with a double-layer screw blade is used for stirring, the rotating speed is controlled to be 2000r/min, after stirring for 3min, the foam is quickly poured into a high glass measuring cup with scales, the volume of the foam is equal to the volume of the measuring cup, a stopwatch is immediately pressed to start timing, and the time required by 1/2 of the total content of the separated foam is recorded, namely the half-life period of the foam.

The results of the performance tests on the fabrics provided in the above application examples and comparative application examples, as well as on the fabrics without mercerization, are shown in table 1:

TABLE 1

As shown in Table 1, the foam mercerizing foaming system prepared by designing the components in the foam mercerizing foaming system, selecting the specific alkali-resistant foaming agent and further using the foam stabilizer and the hydrophilic softener has a good mercerizing effect, and has the advantages of a mercerizing barium value of 135-146, gloss of 62-71 and dye adsorption capacity of 2.72-2.90 g (100g fiber)^-1The mercerizing agent has good mechanical property, the breaking load is 7.28-7.61N, the stability is good, the retention time of foam is long when the fabric is subjected to mercerizing, the half-life period is 162-184 s, and the problems of non-penetration and non-uniformity of mercerizing in foam mercerizing are solved.

Compared with the example 1, if the alkali-resistant foaming agent does not contain an ionic surfactant (application example 6), a nonionic surfactant (application example 7) or a zwitterionic surfactant (application example 8), the prepared foam mercerizing foaming system has poor mercerizing effect and mechanical property, and the mercerizing barium value, the gloss, the dye adsorption amount and the breaking load are low.

Compared with the example 1, if the foam mercerizing foaming system does not contain the foam stabilizer (application comparative example 1), the prepared foam mercerizing foaming system is poor in stability, the retention time of foam is short when the fabric is subjected to mercerizing treatment, and the half-life period is only 151s, so that the problems of non-penetration and non-uniformity of mercerizing can be caused when the mercerizing treatment is carried out; if the foam mercerizing foaming system does not contain the hydrophilic softener (application comparative example 2), the prepared foam mercerizing foaming system has poor mercerizing effect, and the barium number, the gloss and the dye adsorption quantity of the foam mercerizing foaming system are low.

Compared with the example 1, if the mercerizing treatment is carried out on the fabric by adopting the alkali liquor soaking process (application comparative example 3), the mercerizing effect and the mechanical property of the prepared foam mercerizing foaming system are poor.

In conclusion, the foam mercerizing foaming system prepared by the design of the components in the foam mercerizing foaming system, the selection of the specific alkali-resistant foaming agent and the further use of the foam stabilizer and the hydrophilic softener has good mercerizing effect, good mechanical property and good stability.

The applicant states that the present invention is illustrated by the detailed process flow of the present invention through the above examples, but the present invention is not limited to the above detailed process flow, that is, it does not mean that the present invention must rely on the above detailed process flow to be implemented. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.