Biological finishing liquid and anti-pilling finishing method for fabric

Abstract

The invention relates to the technical field of textiles, and discloses a biological finishing liquid and an anti-pilling finishing method for fabrics. The biological finishing liquid contains collagen with the molecular weight of 800-100000Da and a solvent, and the pH value of the biological finishing liquid is 6-8. The anti-fuzzing and anti-pilling finishing method for the fabric comprises the following steps: after the fabric is in contact with biological finishing liquid, drying treatment is performed; the biological finishing liquid contains collagen with the molecular weight of 800-100000Da and a solvent, and the pH value of the biological finishing liquid is 6-8. The biological finishing liquid has the advantages of safe formula, no chemical addition and simple preparation.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, in particular to a biological finishing liquid and a fabric anti-pilling finishing method. Background Art

[0002] With the progress of society and the improvement of the quality of human life, people's expectations and market demands for clothing have undergone tremendous changes. Judging from the current market fabric development trends and the current status of research at home and abroad, consumers' attention has gradually focused on the comfort and environmental protection of fabrics. Cashmere is a thin layer of fine wool that grows on the outer skin of goats and hides the roots of goat coarse hair. Because of its low output, it is expensive and enjoys the reputation of "soft gold". Wool fabrics are deeply favored by people because of their soft texture, delicate feel, warmth and breathability, and occupy an important position in the knitted fabric market. However, wool knitted fabrics are prone to pilling during frequent use, which not only affects their aesthetics, but also shortens their service life.

[0003] Currently, some anti-pilling treatment methods on the market mostly rely on chemical additives. Although these chemical additives can improve the pilling problem of wool knitted fabrics to a certain extent, the waste liquid after finishing contains chemical additives, and direct discharge will cause environmental pollution. In addition, when the skin comes into contact with wool knitted fabrics treated with the above finishing liquid, there may be potential threats to human health.

[0004] Therefore, developing an environmentally friendly and effective anti-pilling and fuzzing finishing technology for wool knitted fabrics has become a research direction that the industry urgently needs. Summary of the invention

[0005] The purpose of the present invention is to overcome the problem that the prior art uses finishing liquids with added chemical auxiliaries, which may cause environmental pollution and chemical damage to wool or change its natural properties, and to provide a biological finishing liquid and a finishing method for fabrics to prevent pilling. The biological finishing liquid has the advantages of safe formula, no chemical additives and simple preparation.

[0006] In order to achieve the above-mentioned object, the first aspect of the present invention provides a biological finishing liquid, which contains collagen with a molecular weight of 800-100000Da and a solvent, and the pH of the biological finishing liquid is 6-8.

[0007] Preferably, the dynamic directional friction effect of the fabric fibers after being finished with the biological finishing liquid is 10-24%; and the static directional friction effect is 13-29%.

[0008] Preferably, the molecular weight of the collagen in the biological finishing liquid is 1000-7000Da.

[0009] Preferably, the concentration of collagen in the biological finishing liquid is 10-70 g / L.

[0010] Preferably, the pH value of the biological finishing liquid is 7-8.

[0011] Further preferably, the pH of the biological finishing solution is adjusted using a pH adjuster, and the pH adjuster is selected from at least one of an acetic acid solution, a sulfuric acid solution and a carbonate solution.

[0012] The second aspect of the present invention provides the use of the biological finishing liquid described in the first aspect in the anti-pilling treatment of fabrics, preferably wool fabrics.

[0013] The third aspect of the present invention provides a method for finishing fabric against fuzzing and pilling, comprising the following steps: contacting the fabric with a biological finishing liquid and then performing a drying treatment; the biological finishing liquid contains collagen with a molecular weight of 800-100000Da and a solvent, and the pH of the biological finishing liquid is 6-8.

[0014] Preferably, the dynamic directional friction effect of the fabric fibers after being finished with the biological finishing liquid is 10-24%; and the static directional friction effect is 13-29%.

[0015] Preferably, the molecular weight of the collagen in the biological finishing liquid is 1000-7000Da.

[0016] Further preferably, the concentration of collagen in the biological finishing liquid is 10-70 g / L.

[0017] Further preferably, the pH value of the biological finishing liquid is 7-8.

[0018] Further preferably, the pH of the biological finishing solution is adjusted using a pH adjuster, and the pH adjuster is selected from at least one of an acetic acid solution, a sulfuric acid solution and a carbonate solution.

[0019] Preferably, the contacting process includes: padding treatment and / or dipping treatment.

[0020] Preferably, the padding treatment conditions at least include: a temperature of 20-35°C, a pressure of 0.09-0.11 MPa, a time of 5-30 min, and a liquid carrying rate of the fabric after the padding treatment of 90-110%;

[0021] The impregnation process includes: the temperature is 20-60°C, the impregnation is 10-30 minutes, and then a dehydration process is performed. After the dehydration process, the liquid carrying rate of the fabric is 45-55%.

[0022] Preferably, the drying conditions at least include: a temperature of 50-60° C. and a time of 15-30 min.

[0023] Through the above technical scheme, the present invention controls the pH of a solution containing collagen with a molecular weight of 800-100000Da within a specific range, and uses it as a biological finishing liquid. When used for fabric finishing, the collagen can firmly adhere the fiber and the scale layer together, making the fiber surface smoother, reducing the friction and entanglement between the fibers, thereby reducing the directional friction effect, and can effectively prevent the fabric from pilling and fuzzing, while maintaining the natural comfort and softness of the fabric, and the formula is safe, without chemical additives, and simple to prepare. It is further found that when the friction coefficient of the fabric fiber after finishing is within a specific range, the fiber has the effect of resisting pilling and fuzzing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an electron microscope image of the collagen powder with a molecular weight of 1700Da in Example 5 of the present invention;

[0025] Figure 2 is an electron microscope image of the surface of the wool knitted fabric after being treated with the biological finishing liquid 1 in Example 1 of the present invention;

[0026] Figure 3 is an electron microscope image of the surface of the wool fabric after soaping in Example 1 of the present invention;

[0027] Figure 4 is an electron microscope image of the surface of the wool knitted fabric after protease pretreatment in Comparative Example 3 of the present invention;

[0028] Figure 5 is a surface morphology diagram of an untreated wool knitted fabric according to an embodiment of the present invention;

[0029] Figure 6 This is a surface morphology diagram of wool knitted fabric after being treated with biological finishing liquid 1 in Example 1 of the present invention. DETAILED DESCRIPTION

[0030] The endpoints and any values ​​of the ranges disclosed in this article are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of each range, the endpoint values ​​of each range and the individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed in this article.

[0031] The first aspect of the present invention provides a biological finishing liquid, which contains collagen with a molecular weight of 800-100000Da and a solvent. The molecular weight of the collagen can be 800Da, 1000Da, 4000Da, 7000Da, 10000Da, 30000Da, 50000Da, 70000Da, 100000Da, or any value between the above two values; the pH of the biological finishing liquid is 6-8, specifically 6, 7, 8, or any value between the above two values.

[0032] In the present invention, the biological finishing liquid can be used for fabric care, specifically for the finishing of wool fabrics, cashmere fabrics, non-wool fabrics and fabrics prone to pilling and fuzzing. The ingredients are safe, and the waste liquid after finishing can be directly discharged without causing water pollution. The waste liquid can also be recovered and reused.

[0033] In the present invention, the collagen can be prepared by enzymatic hydrolysis of collagen peptide powder or gelatin as raw material. Exemplarily, the preparation method of the collagen can be prepared by protease-directed enzymatic hydrolysis and purification treatment. The preparation method of the collagen is as follows:

[0034] (1) dissolving bone gelatin in water to prepare a gelatin solution with a mass concentration of 10-25%;

[0035] (2) adding 0.3-0.5% neutral protease by weight of gelatin to the gelatin solution, reacting at 55-60° C. for 1 h to obtain a reaction solution;

[0036] (3) the reaction solution obtained in step (2) is subjected to an enzyme inactivation treatment at a temperature of 95-100° C. for 15-20 min to obtain an enzymatic solution;

[0037] (4) spray drying the enzymatic hydrolysate obtained in step (3) to obtain a collagen product.

[0038] The present invention controls the pH of a solution containing collagen with a molecular weight of 800-100000Da within a specific range. When used as a biological finishing liquid for fabric finishing, the collagen can firmly adhere the fiber and the scale layer together, making the fiber surface smoother, reducing the friction and entanglement between the fibers, thereby reducing the directional friction effect, effectively preventing the fabric from pilling and fuzzing, and maintaining the natural comfort and softness of the fabric. The formula is safe, no chemical additives are required, and the preparation is simple.

[0039] According to the present invention, preferably, the dynamic directional friction effect of the biological finishing liquid finishing fiber is 10-24%; specifically, it can be 10%, 15%, 20%, 24%, or any value between the above two values; the static directional friction effect is 13-29%, specifically, it can be 13%, 20%, 25%, 29%, or any value between the above two values. Further preferably, the dynamic directional friction coefficient of the fiber finished with the biological finishing liquid is as follows: the forward friction coefficient is 0.03-0.07, specifically 0.03, 0.05, 0.07, or any value between the above two values; the reverse friction coefficient is 0.04-0.12, specifically 0.04, 0.08, 0.10, 0.12, or any value between the above two values; the static directional friction coefficient of the fiber finished with the biological finishing liquid is as follows: the forward friction coefficient is 0.03-0.07, specifically 0.03, 0.05, 0.07, or any value between the above two values; the reverse friction coefficient is 0.04-0.10, specifically 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.10, or any value between the above two values. The inventors have found that when the above preferred embodiment is adopted, the friction coefficient of the finished fabric fiber is within the above specific range, so that the fabric fiber has an anti-pilling and anti-fuzzing effect, which can more effectively prevent the fabric from pilling and fuzzing.

[0040] In the present invention, the specific detection method of the dynamic directional friction effect and the static directional friction effect of the wool fiber after the biological finishing liquid is as follows: a 12×12 cm 2 The wool knitted fabric (purchased from Inner Mongolia Luwang Cashmere Co., Ltd., product batch number 24YCYD0672, article number ZXCC46411) and 100 mL of the biological finishing liquid are padded by a small padder, the pressure of the small padder is controlled to be 0.09 MPa, the time is 5 min, the temperature is 20° C., and the liquid carrying rate of the wool knitted fabric after padding is 90%; then, the wool knitted fabric is dried for 15 min at a temperature of 50° C. by an electric heating blast dryer to obtain wool fibers treated with the biological finishing liquid;

[0041] The wool fibers treated with the biological finishing solution were used as samples. The XCF-1A fiber friction coefficient tester was used with a tension clamp load of 200×10 -3 cN, load range 150×10 -3 cN, the friction roller speed is 30r / min; the friction roller is a metal roller with a diameter of 8mm; the dynamic and static friction coefficients of the test samples in the direction of the scales and against the scales are μ 顺 , μ 逆 , the dynamic and static directional friction effect (DFE) of the sample is calculated according to the following formula; 30 fibers are tested for each sample, μ 顺 , μ逆 Take the average value;

[0042]

[0043] According to the present invention, preferably, the solvent is water or saline solution or other solvents that can dissolve collagen. The inventors found that when the biological finishing liquid prepared in the above preferred embodiment is used for fabric finishing, it can more effectively prevent fabric pilling and fuzzing, and the formula is safe, without chemical additives, and is simple to prepare.

[0044] According to the present invention, preferably, the molecular weight of the collagen in the biological finishing liquid is 1000-7000Da, specifically 1000Da, 3000Da, 5000Da, 7000Da, or any value between the above two values. The inventors found that when the biological finishing liquid prepared in the above preferred embodiment is used for fabric finishing, it can more effectively prevent fabric pilling and fuzzing, and the formula is safe, without chemical additives, and the preparation is simple.

[0045] According to the present invention, preferably, the concentration of collagen in the biological finishing liquid is 10-70 g / L, specifically 10 g / L, 30 g / L, 50 g / L, 70 g / L, or any value between the above two values. The inventors have found that the biological finishing liquid prepared in the above preferred embodiment can more effectively prevent fabric pilling and fuzzing when used for fabric finishing, and the formula is safe, without chemical additives, and is simple to prepare.

[0046] According to the present invention, preferably, the pH value of the biological finishing liquid is 7-8, specifically 7, 7.5, 8, or any value between the above two values. Further preferably, the pH of the biological finishing liquid is adjusted by a pH regulator, and the pH regulator is selected from at least one of acetic acid solution, sulfuric acid solution and carbonate solution. Specifically, the pH regulator can be a separate acetic acid solution, sulfuric acid solution and carbonate solution; the pH regulator can be a mixture of acetic acid solution and sulfuric acid solution, a mixture of acetic acid solution and carbonate solution, or a mixture of sulfuric acid solution and carbonate solution. The carbonate solution is alkaline and is used to adjust the pH value of the prepared acidic collagen to 7-8. If the alkaline solution is added in excess, it can be neutralized by adding sulfuric acid or hydrochloric acid. Sulfuric acid and hydrochloric acid are acidic and are used to adjust the pH value of the prepared alkaline collagen to 7-8. If the acidic solution is added in excess, it can be neutralized by adding carbonate solution to obtain the corresponding mixed solution. The inventors have found that the use of the biological finishing liquid prepared in the above preferred embodiment for fabric finishing can more effectively prevent fabric pilling and fuzzing, and the formula is safe, has no chemical additives, and is simple to prepare.

[0047] According to the present invention, further preferably, the concentration of the solute in the acetic acid solution, sulfuric acid solution and carbonate solution is 1-3 mol / L, specifically 1 mol / L, 2 mol / L, 3 mol / L, or any value between the above two values. Exemplarily, the carbonate solution can be a sodium carbonate solution and / or a potassium carbonate solution. The inventors have found that when the biological finishing liquid prepared in the above preferred embodiment is used for fabric finishing, it can more effectively prevent fabric pilling and fuzzing, and the formula is safe, without chemical additives, and is simple to prepare.

[0048] The above raw materials can be obtained commercially.

[0049] The second aspect of the present invention provides the use of the biological finishing liquid described in the first aspect in the anti-pilling treatment of fabrics, preferably wool fabrics. The inventors have found that the biological finishing liquid has better anti-pilling and anti-pilling effects when applied to wool fabric finishing, and the formula is safe, without chemical additives, and is simple to prepare.

[0050] The third aspect of the present invention provides a method for finishing fabrics against pilling, comprising the following steps: contacting the fabric with a biological finishing solution and then drying the fabric; the biological finishing solution contains collagen with a molecular weight of 800-100000Da and a solvent, and the molecular weight of the collagen can be 800Da, 1000Da, 4000Da, 7000Da, 10000Da, 30000Da, 50000Da, 70000Da, 100000Da, or any value between the above two values; the pH of the biological finishing solution is 6-8, which can be 6, 7, 8, or any value between the above two values. The inventors have found that when the above preferred embodiment is adopted, the fabric can be more effectively prevented from pilling and fuzzing after finishing.

[0051] According to the present invention, preferably, the dynamic directional friction effect of the biological finishing liquid finishing fiber is 10-24%; specifically, it can be 10%, 15%, 20%, 24%, or any value between the above two values; the static directional friction effect is 13-29%, specifically, it can be 13%, 20%, 25%, 29%, or any value between the above two values. Further preferably, the dynamic directional friction coefficient of the fiber finished with the biological finishing liquid is as follows: the forward friction coefficient is 0.03-0.07, specifically 0.03, 0.05, 0.07, or any value between the above two values; the reverse friction coefficient is 0.04-0.12, specifically 0.04, 0.08, 0.10, 0.12, or any value between the above two values; the static directional friction coefficient of the fiber finished with the biological finishing liquid is as follows: the forward friction coefficient is 0.03-0.07, specifically 0.03, 0.05, 0.07, or any value between the above two values; the reverse friction coefficient is 0.04-0.10, specifically 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.10, or any value between the above two values. The inventors have found that when the above preferred embodiment is adopted, when the friction coefficient of the finished fabric fiber is within the above specific range, the fabric fiber has an anti-pilling and anti-fuzzing effect, which can more effectively prevent the fabric from pilling and fuzzing.

[0052] According to the present invention, preferably, the specific detection method of the dynamic directional friction effect and the static directional friction effect of the wool fiber after the biological finishing liquid is: 2 The wool knitted fabric (purchased from Inner Mongolia Luwang Cashmere Co., Ltd., product batch number 24YCYD0672, article number ZXCC46411) and 100 mL of the biological finishing liquid are padded by a small padder, the pressure of the small padder is controlled to be 0.09 MPa, the time is 5 min, the temperature is 20° C., and the liquid carrying rate of the wool knitted fabric after padding is 90%; then, the wool knitted fabric is dried for 15 min at a temperature of 50° C. by an electric heating blast dryer to obtain wool fibers treated with the biological finishing liquid;

[0053] The wool fibers treated with the biological finishing solution were used as samples. The XCF-1A fiber friction coefficient tester was used with a tension clamp load of 200×10 -3 cN, load range 150×10 -3 cN, the friction roller speed is 30r / min; the friction roller is a metal roller with a diameter of 8mm; the dynamic and static friction coefficients of the test samples in the direction of the scales and against the scales are μ 顺 , μ 逆 , the dynamic and static directional friction effect (DFE) of the sample is calculated according to the following formula; 30 fibers are tested for each sample, μ 顺, μ 逆 Take the average value;

[0054]

[0055] According to the present invention, preferably, the molecular weight of the collagen in the biological finishing liquid is 1000-7000Da, specifically 1000Da, 3000Da, 5000Da, 7000Da, or any value between the above two values. Further preferably, the concentration of collagen in the biological finishing liquid is 10-70g / L, specifically 10g / L, 30g / L, 50g / L, 70g / L, or any value between the above two values; the pH value of the biological finishing liquid is 7-8, specifically 7, 7.5, 8, or any value between the above two values. The inventors found that when the above preferred embodiment is adopted, the fabric can be more effectively prevented from pilling and fuzzing after finishing.

[0056] According to the present invention, it is further preferred that the pH of the biological finishing liquid is adjusted by a pH adjusting agent, and the pH adjusting agent is selected from at least one of acetic acid solution, sulfuric acid solution and carbonate solution. Specifically, the pH adjusting agent can be a separate acetic acid solution, sulfuric acid solution and carbonate solution; the pH adjusting agent can be a mixture of acetic acid solution and sulfuric acid solution, a mixture of acetic acid solution and carbonate solution, or a mixture of sulfuric acid solution and carbonate solution. The carbonate solution is alkaline and is used to adjust the pH value of the prepared acidic collagen to 7-8. If the alkaline solution is added in excess, it can be neutralized by adding sulfuric acid or hydrochloric acid. Sulfuric acid and hydrochloric acid are acidic and are used to adjust the pH value of the prepared alkaline collagen to 7-8. If the acidic solution is added in excess, it can be neutralized by adding carbonate solution to obtain the corresponding mixed solution. The inventors found that when the above preferred embodiment is adopted, the fabric can be more effectively prevented from pilling and fuzzing after finishing.

[0057] According to the present invention, preferably, the contact process includes: padding treatment and / or dipping treatment. The contact process may include only padding treatment; or the contact process includes only dipping treatment; or the contact process includes padding treatment and dipping treatment; preferably, the contact process is padding treatment. Exemplarily, the padding treatment may use a small padder to control the padding conditions, and the dipping treatment may use an impregnation device to control the impregnation conditions. Further preferably, the conditions of the padding treatment at least include: a temperature of 20-35°C, specifically 20°C, 25°C, 30°C, 35°C, or any value between the above two values; a pressure of 0.09-0.11MPa, specifically 0.09MPa, 0.10MPa, 0.11MPa, or any value between the above two values; a time of 5-30min, specifically 5min, 15min, 20min, 25min, 30min, or any value between the above two values; a liquid carrying rate of the fabric after padding treatment is 90-110%, specifically 90%, 100%, 110%, or any value between the above two values. In the present invention, the liquid carrying rate is also called the rolling rate, which refers to the percentage of the weight of the liquid on the fabric to the weight of the fabric itself. A represents the weight of the fabric before padding; B represents the weight of the fabric after padding, and the liquid carrying rate = (BA) / A×100%. The inventors have found that when the above preferred embodiment is adopted, the fabric can be more effectively prevented from pilling and fuzzing after finishing.

[0058] According to the present invention, the process of the impregnation treatment includes: the temperature is 20-60°C, specifically 20°C, 30°C, 40°C, 50°C, 60°C, or any value between the above two values; more preferably 50-60°C, specifically 50°C, 55°C, 60°C, or any value between the above two values; after impregnation for 10-30 minutes, dehydration treatment is performed, specifically 10 minutes, 15 minutes, 20 minutes, 25 minutes, 30 minutes, or any value between the above two values; the liquid carrying rate of the fabric after the dehydration treatment is 45-55%, specifically 45%, 50%, 55%, or any value between the above two values. The inventors found that when the above preferred embodiment is adopted, compared with the fabric finishing method using the same impregnation treatment, it can more effectively prevent fabric pilling and fuzzing.

[0059] According to the present invention, preferably, the drying conditions at least include: a temperature of 50-60°C, specifically 50°C, 55°C, 60°C, or any value between the above two values; a time of 15-30min, specifically 15min, 20min, 25min, 30min, or any value between the above two values. Exemplarily, the drying process can be performed by an electric hot air dryer to dry the fabric. The inventors have found that when the above preferred embodiment is adopted, the fabric can be more effectively prevented from pilling and fuzzing after finishing.

[0060] As a relatively preferred embodiment of the present invention, a method for finishing a fabric against pilling, taking wool knitted fabric finishing as an example, comprises the following steps:

[0061] The wool knitted fabric is contacted with a prepared biological finishing liquid, wherein the biological finishing liquid contains collagen with a molecular weight of 800-100000Da and solvent water, and the pH value of the biological finishing liquid is 6-8; the concentration of the collagen in the biological finishing liquid is 10-70g / L; a padding treatment is performed by a small padder, the pressure of the small padder is controlled to be 0.09-0.11MPa, the time is 5-30min, and the temperature is 20-35℃, and the liquid carrying rate of the wool fabric after the padding treatment is 90-110%; and then the wool fabric is dried for 15-30min at a temperature of 50-60℃ by an electric heating blower dryer.

[0062] The present invention will be described in detail below through examples.

[0063] In the following examples, the pilling performance was determined according to the method in the standard GB / T 4802.2-2008 Determination of pilling performance of textile fabrics Part 2: Modified Martindale method; the washing fastness performance was determined according to the method in the standard GB / T 3921-2008 Textiles - Tests for color fastness - Color fastness to washing with soap; the wool fabric used in the examples was purchased from Inner Mongolia Luwang Cashmere Co., Ltd., with a product batch number of 24YCYD0672 and a product number of ZXCC46411; collagen was purchased from Baotou Dongbao Biotechnology Co., Ltd.; unless otherwise specified, the remaining reagents or raw materials were conventional biochemical reagent grade products.

[0064] Unless otherwise specified, the room temperature is 25±5℃.

[0065] The specific detection method of the dynamic directional friction effect and static directional friction effect of wool fibers treated with biological finishing liquid in the following examples and comparative examples is as follows: a 12×12 cm 2The wool knitted fabric (purchased from Inner Mongolia Luwang Cashmere Co., Ltd., product batch number 24YCYD0672, article number ZXCC46411) and 100 mL of the biological finishing liquid are padded by a small padder, the pressure of the small padder is controlled to be 0.09 MPa, the time is 5 min, the temperature is 20° C., and the liquid carrying rate of the wool knitted fabric after padding is 90%; then, the wool knitted fabric is dried for 15 min at a temperature of 50° C. by an electric heating blast dryer to obtain wool fibers treated with the biological finishing liquid;

[0066] The wool fibers treated with the biological finishing solution were used as samples. The XCF-1A fiber friction coefficient tester was used with a tension clamp load of 200×10 -3 cN, load range 150×10 -3 cN, the friction roller speed is 30r / min; the friction roller is a metal roller with a diameter of 8mm; the dynamic and static friction coefficients of the test samples in the direction of the scales and against the scales are μ 顺 , μ 逆 , the dynamic and static directional friction effect (DFE) of the sample is calculated according to the following formula; 30 fibers are tested for each sample, μ 顺 , μ 逆 Take the average value;

[0067]

[0068] The coefficient of friction of the fibers in unfinished wool knitted fabric is as follows:

[0069] Dynamic friction coefficient: μ 顺 0.0419, μ 逆 is 0.0712, DEF is 25.91%;

[0070] Static friction coefficient: μ 顺 0.0487, μ 逆 It is 0.0979 and DEF is 33.56%.

[0071] Example 1

[0072] The method for anti-pilling finishing of wool knitted fabric comprises the following steps:

[0073] (1) Preparation of biological finishing solution: 1500 g of collagen with a molecular weight of 7000 Da was dissolved in 29 L of solvent water and stirred with a high-speed stirrer. After the collagen was fully dissolved, 0.1 L of 3 mol / L acetic acid solution was added and stirred evenly. 3 mol / L acetic acid solution was continued to be added to adjust the pH value to 7. The pH value was measured at intervals of 5 minutes to determine whether it was stable to obtain biological finishing solution 1. The final volume of biological finishing solution 1 was measured to be about 30 L, and the final concentration of collagen was about 50 g / L.

[0074] (2) Finishing method of wool knitted fabric: 2 The wool knitted fabric was padded with 100 mL of biological finishing liquid 1 by a small padder. The pressure of the small padder was controlled to be 0.09 MPa, the time was 5 min, and the temperature was 20 ° C. After the padding treatment, the liquid carrying rate of the wool knitted fabric was 90%; then it was dried for 15 minutes at a temperature of 50 ° C in an electric blower dryer.

[0075] The method for preparing the biological finishing solution is based on the above step (1), except that 1500g of collagen with a molecular weight of 7000Da is replaced by 300g, 900g, and 2100g of collagen with a molecular weight of 7000Da, respectively, to prepare biological finishing solutions 2-4 with final collagen concentrations of approximately 10g / L, 30g / L, and 70g / L, respectively.

[0076] According to the wool knitted fabric finishing method of the above step (2), the wool knitted fabric is finished with biological finishing liquids 2-4 respectively. The wool knitted fabric after finishing is tested for fabric pilling and washing fastness. The pilling performance of the finished wool knitted fabric is determined according to the standard "GB / T 4802.2-2008 Determination of pilling performance of textile fabrics Part 2: Modified Martindale method", and the fabric is tested using a YG401G Martindale abrasion tester. At a specific number of frictions, the pilling rating of the fabric is determined by comparing with the standard pilling picture; the washing fastness of the finished wool knitted fabric is determined according to the method of the standard "GB / T 3921-2008 Textiles - Color fastness to soap washing", the bath ratio of the wool knitted fabric and the soap solution is 1:50, the concentration of soap flakes in the soap solution is 5g / L, and the fabric is washed at a temperature of 40°C for 30 minutes and then dried for evaluation; the test results are shown in Table 1; the electron microscope image of the surface of the wool knitted fabric treated with biological finishing liquid 1 is shown in Table 1. Figure 2 As shown; the electron microscope image of the wool fabric surface after water treatment is as follows Figure 3 shown.

[0077] Table 1

[0078]

[0079] Note: In the fabric feel test, the untreated wool knitted fabric feels soft and delicate, A means that the treated wool knitted fabric feels harder than the original wool knitted fabric, and A+ means that the wool knitted fabric is harder than A, and so on.

[0080] In order to facilitate observation, the collagen was dyed before preparing the biological finishing solution 1 to enhance its visibility and identification in subsequent observation. Subsequently, the colored collagen was impregnated and covered on the surface of the wool knitted fabric to ensure that the collagen could evenly penetrate into the fiber gaps of the wool knitted fabric, and then dried. Figure 5 The surface morphology of wool knitted fabric after collagen treatment is shown in Figure 6 shown.

[0081] from Figure 5 and Figure 6 It can be seen that the fiber scale layer of the untreated wool knitted fabric is complete and arranged tightly and orderly. The fiber surface of the wool knitted fabric treated with collagen is wrapped with small pieces of dyed collagen film. Through color discrimination, it can be clearly seen that collagen is evenly distributed on the wool knitted fabric, tightly attached to the fiber surface in the form of small pieces, and partially enters the scale layer. The collagen in the biological finishing liquid 1 has certain adhesive properties. After the wool fabric is finished and dried with the biological finishing liquid 1, the collagen can firmly adhere to the scale layer surface of the wool fiber, and at the same time can enter the gap of the scale layer, using its adhesiveness to make the scale layer more closely fit the fiber, thereby making the fiber surface smoother. The contact and friction between fibers are reduced, thereby significantly improving the anti-pilling performance of wool knitted fabrics.

[0082] Example 2

[0083] The method for anti-pilling finishing of wool knitted fabric comprises the following steps:

[0084] (1) Preparation of biological finishing solution: 300 g of collagen with a molecular weight of 4000 Da was dissolved in 29 L of solvent water and stirred with a high-speed stirrer. After the collagen was fully dissolved, 0.03 L of 1 mol / L sulfuric acid solution was added and stirred evenly. 1 mol / L sulfuric acid solution was continued to be added to adjust the pH value to 7.5. The pH value was measured at intervals of 5 min to determine whether it was stable to obtain biological finishing solution 5. The final volume of biological finishing solution 5 was measured to be about 30 L, and the final concentration of collagen was about 10 g / L.

[0085] (2) Finishing method of wool knitted fabric: 2 The wool knitted fabric was treated with 100 mL of biological finishing liquid 5 by a small padding machine. The pressure of the small padding machine was controlled to be 0.10 MPa, the time was 20 min, and the temperature was 35°C. The liquid carrying rate of the wool knitted fabric after padding was 100%; then it was dried for 20 min at a temperature of 55°C in an electric blower dryer.

[0086] The method for preparing the biological finishing solution is based on the above step (1), except that 300 g of collagen with a molecular weight of 4000 Da is replaced by 900 g, 1500 g, and 2100 g of collagen with a molecular weight of 4000 Da, respectively, to prepare biological finishing solutions 6-8 with final collagen concentrations of approximately 30 g / L, 50 g / L, and 70 g / L, respectively.

[0087] According to the wool knitted fabric finishing method of step (2) above, the wool knitted fabric is finished with biological finishing liquids 6-8 respectively. The finished wool knitted fabric is tested for performance according to the test method of Example 1, and the test results are shown in Table 2.

[0088] Table 2

[0089]

[0090]

[0091] Example 3

[0092] The method for anti-pilling finishing of wool knitted fabric comprises the following steps:

[0093] (1) Preparation of biological finishing solution: 1750 g of collagen with a molecular weight of 1000 Da was dissolved in 24 L of solvent water and stirred with a high-speed stirrer. After the collagen was fully dissolved, 0.08 L of 2 mol / L sodium carbonate solution was added and stirred evenly. 2 mol / L sodium carbonate solution was continued to be added to adjust the pH value to 8.0. The pH value was measured at intervals of 5 minutes to determine whether it was stable or not to obtain biological finishing solution 9. The final volume of biological finishing solution 9 was measured to be about 25 L, and the final concentration of collagen was about 70 g / L.

[0094] (2) Finishing method of wool knitted fabric: 2 The wool knitted fabric was treated with 100 mL of biological finishing liquid 9 by a small padding machine. The pressure of the small padding machine was controlled to be 0.11 MPa, the time was 30 minutes, and the temperature was 25°C. The liquid carrying rate of the wool knitted fabric after the padding treatment was 110%; then it was dried for 30 minutes at a temperature of 60°C in an electric blower dryer.

[0095] The method for preparing the biological finishing solution is based on the above step (1), except that 1750g of collagen with a molecular weight of 1000Da is replaced by 250g, 750g, and 1250g of collagen with a molecular weight of 1000Da, respectively, to prepare biological finishing solutions 10-12 with final collagen concentrations of approximately 10g / L, 30g / L, and 50g / L, respectively.

[0096] According to the wool knitted fabric finishing method of step (2) above, the wool knitted fabric is finished with biological finishing liquids 10-12 respectively. The finished wool knitted fabric is tested for performance according to the test method of Example 1, and the test results are shown in Table 3.

[0097] Table 3

[0098]

[0099]

[0100] Example 4

[0101] The method for preparing the biological finishing solution of Example 3 was followed, except that the collagen with a molecular weight of 1000Da was replaced with collagen with a molecular weight of 1300Da, to obtain biological finishing solutions 13-16 with final collagen concentrations of 10g / L, 30g / L, 50g / L, and 70g / L;

[0102] The wool knitted fabric finishing method in step (2) of Example 1 was followed, except that the biological finishing liquids 1-4 were replaced with biological finishing liquids 13-16, and the wool knitted fabrics were finished respectively. The finished wool knitted fabrics were tested for performance according to the test method of Example 1, and the test results are shown in Table 4.

[0103] Table 4

[0104]

[0105] Example 5

[0106] The preparation method of the biological finishing liquid of Example 3 is followed, except that the collagen with a molecular weight of 1000Da is replaced with the collagen with a molecular weight of 1700Da, to obtain biological finishing liquids 17-20 with final collagen concentrations of 10g / L, 30g / L, 50g / L, and 70g / L; the electron microscopy image of the collagen powder is as follows Figure 1 shown.

[0107] The wool knitted fabrics were finished according to the finishing method of Example 1, except that the biological finishing liquids 1-4 were replaced with biological finishing liquids 17-20. The finished wool knitted fabrics were tested for performance according to the test method of Example 1, and the test results are shown in Table 5.

[0108] Table 5

[0109]

[0110] Example 6

[0111] The method for preparing the biological finishing solution of Example 1 was followed, except that the collagen with a molecular weight of 7000Da was replaced with collagen with a molecular weight of 800Da, to obtain biological finishing solutions 21-24 with final collagen concentrations of 10g / L, 30g / L, 50g / L, and 70g / L;

[0112] The wool knitted fabric finishing method in step (2) of Example 1 was followed, except that the biological finishing liquids 1-4 were replaced with biological finishing liquids 21-24, and the wool knitted fabrics were finished respectively. The finished wool knitted fabrics were tested for performance according to the test method of Example 1, and the test results are shown in Table 6.

[0113] Table 6

[0114]

[0115] Example 7

[0116] The method for preparing the biological finishing solution of Example 1 was followed, except that the collagen with a molecular weight of 7000Da was replaced with collagen with a molecular weight of 10000Da, to obtain biological finishing solutions 25-28 with final collagen concentrations of 10g / L, 30g / L, 50g / L, and 70g / L;

[0117] According to the wool knitted fabric finishing method in step (2) of Example 1, the wool knitted fabric was finished using biological finishing liquids 25-28 respectively. The finished wool knitted fabric was tested for performance according to the test method of Example 1, and the test results are shown in Table 7.

[0118] Table 7

[0119]

[0120] Example 8

[0121] (1) According to the preparation method of the biological finishing solution of Example 4, biological finishing solutions 13, 41, 15-16 with final collagen concentrations of 10 g / L, 40 g / L, 50 g / L, and 70 g / L were prepared;

[0122] (2) Finishing method of wool knitted fabric: 2 The wool knitted fabric is impregnated with 100 mL of biological finishing liquid 13 through an impregnation device at a temperature of 50°C for 10 minutes. After the impregnation treatment, it is dehydrated by a centrifugal dehydrator. After the dehydration treatment, the liquid carrying rate of the wool knitted fabric is 45%; then it is dried for 15 minutes at a temperature of 50°C in an electric blower dryer.

[0123] According to the wool knitted fabric finishing method of step (2) above, the wool knitted fabric is finished using biological finishing liquids 41 and 15-16 respectively. The finished wool knitted fabric is tested for performance according to the test method of Example 1, and the test results are shown in Table 8.

[0124] Table 8

[0125]

[0126]

[0127] Example 9

[0128] (1) According to the preparation method of the biological finishing solution of Example 5, biological finishing solutions 17-20 with final collagen concentrations of 10 g / L, 30 g / L, 50 g / L, and 70 g / L were prepared;

[0129] (2) Finishing method of wool knitted fabric: 2 The wool knitted fabric is impregnated with 100 mL of biological finishing liquid 17 through an impregnation device at a temperature of 55°C for 20 minutes. After the impregnation treatment, it is dehydrated by a centrifugal dehydrator. After the dehydration treatment, the liquid carrying rate of the wool knitted fabric is 50%; then it is dried for 20 minutes at a temperature of 55°C in an electric blower dryer.

[0130] According to the wool knitted fabric finishing method of step (2) above, the wool knitted fabric is finished with biological finishing liquids 18-20 respectively. The finished wool knitted fabric is tested for performance according to the test method of Example 1, and the test results are shown in Table 9.

[0131] Table 9

[0132]

[0133] Example 10

[0134] (1) According to the preparation method of the biological finishing solution of Example 6, biological finishing solutions 21-24 with final collagen concentrations of 10 g / L, 30 g / L, 50 g / L, and 70 g / L were prepared;

[0135] (2) Finishing method of wool knitted fabric: 2 The wool knitted fabric is impregnated with 100 mL of biological finishing liquid 21 through an impregnation device at a temperature of 60°C and an impregnation time of 30 minutes. After the impregnation treatment, it is dehydrated by a centrifugal dehydrator. After the dehydration treatment, the liquid carrying rate of the wool knitted fabric is 55%; then it is dried for 30 minutes at a temperature of 60°C in an electric blower dryer.

[0136] According to the wool knitted fabric finishing method of step (2) above, the wool knitted fabric is finished using biological finishing liquids 22-24 respectively. The finished wool knitted fabric is tested for performance according to the test method of Example 1, and the test results are shown in Table 10.

[0137] Table 10

[0138]

[0139] Embodiment 11

[0140] According to the preparation method of the biological finishing solution of Example 7, biological finishing solutions 25-28 with final collagen concentrations of 10 g / L, 30 g / L, 50 g / L, and 70 g / L were prepared;

[0141] The wool knitted fabric finishing method in step (2) of Example 10 was followed, except that the biological finishing liquids 22-24 were replaced with biological finishing liquids 25-28, and the wool knitted fabrics were finished respectively. The finished wool knitted fabrics were tested for performance according to the test method of Example 1, and the test results are shown in Table 11.

[0142] Table 11

[0143]

[0144]

[0145] Example 12

[0146] The method for preparing the biological finishing solution of Example 3 was followed, except that the collagen with a molecular weight of 1000Da was replaced with collagen with a molecular weight of 100000Da, to obtain biological finishing solutions 29-32 with final collagen concentrations of 10g / L, 30g / L, 50g / L, and 70g / L;

[0147] The wool knitted fabric finishing method in step (2) of Example 1 was followed, except that the biological finishing liquids 1-4 were replaced with biological finishing liquids 29-32, and the wool knitted fabrics were finished respectively. The finished wool knitted fabrics were tested for performance according to the test method of Example 1, and the test results are shown in Table 12.

[0148] Table 12

[0149]

[0150] Example 13

[0151] The method for preparing the biological finishing solution in step (1) of Example 1 was followed, except that the pH value was adjusted to 6 instead of 7, to obtain biological finishing solutions 33-37 with final collagen concentrations of 8 g / L, 10 g / L, 30 g / L, 50 g / L, and 70 g / L.

[0152] The wool knitted fabric finishing method in step (2) of Example 1 was followed, except that the biological finishing liquids 1-4 were replaced with biological finishing liquids 33-37, and the wool knitted fabrics were finished respectively. The finished wool knitted fabrics were tested for performance according to the test method of Example 1, and the test results are shown in Table 13.

[0153] Table 13

[0154]

[0155] Comparative Example 1

[0156] The method for anti-pilling finishing of wool knitted fabric comprises the following steps:

[0157] (1) Preparation of finishing liquid: 30 g of anti-pilling agent purchased from Nimeda Technology Co., Ltd., product number D112E, was weighed, then added to 970 mL of aqueous solution and stirred, transferred to a 1 L volumetric flask and fixed to volume with water to obtain finishing liquid 38 with an anti-pilling agent D112E concentration of 30 g / L. Anti-pilling agent D112E is a cationic auxiliary agent that is coated on the surface of wool fibers after high-temperature baking, and will form a film on the surface of wool knitted fabrics, which will cover the surface of wool knitted fabrics and improve the anti-pilling properties of the fabrics.

[0158] The wool knitted fabric is finished according to the wool knitted fabric finishing method in step (2) of Example 1, except that the biological finishing liquid 1 is replaced by the finishing liquid 38 to finish the wool knitted fabric.

[0159] Comparative Example 2

[0160] The finishing liquid preparation method of Comparative Example 1 was followed, except that 30 g of the anti-pilling agent D112E was replaced with 50 g of the anti-pilling agent D112E, to obtain a finishing liquid 39 having an anti-pilling agent D112E concentration of 50 g / L.

[0161] The wool knitted fabric is finished according to the wool knitted fabric finishing method in step (2) of Example 1, except that the biological finishing liquid 1 is replaced by the biological finishing liquid 39.

[0162] Comparative Example 3

[0163] The method for anti-pilling finishing of wool knitted fabric comprises the following steps:

[0164] (1) Protease pretreatment: The protease used is alkaline protease with product number TYPEEX purchased from Hengzhou Industrial Co., Ltd. The protease can erode and destroy the scale layer on the surface of wool fibers and improve the feel of the fabric. 2 The wool knitted fabric was mixed with a protease solution for enzyme treatment. The protease dosage was 1% (owf). The enzyme treatment was carried out at pH 7 and temperature 45°C for 50 minutes, then cooled to room temperature, and then the enzyme was inactivated. The amount of chlorinated O was 0.5% (owf), pH 4.5, and temperature 70°C for 10 minutes, and then the wool knitted fabric was washed. The electron microscopy image of the wool knitted fabric surface after protease pretreatment is shown in Figure 2. Figure 4 shown.

[0165] The finishing liquid 38 of comparative example 1 is mixed with the wool knitted fabric pretreated with protease in step (1). The wool knitted fabric is finished according to the finishing method of step (2) of example 2, except that the biological finishing liquid 1 is replaced with the finishing liquid 38.

[0166] Comparative Example 4

[0167] The same method of anti-pilling finishing of wool knitted fabric as in Comparative Example 3 is used, except that finishing liquid 38 is replaced by finishing liquid 39.

[0168] Comparative Example 5

[0169] 1. Pre-treatment

[0170] 1. After dyeing, rinse the fabric and remove impurities with 22wt% NaOH solution.

[0171] 2. Before adding softener, the pH value must reach 5.6. If the pH value cannot reach this range, citric acid can be added for pickling to make the pH value reach 5.6.

[0172] 2. Padding

[0173] 1. Preparation before softener treatment: ① Take the liquid: disinfect the container with alcohol to prevent the original liquid from being contaminated; ② Put water into the tank and pour in the collagen original liquid to make the concentration reach the required level, that is, the weight ratio of collagen with a molecular weight of 7000Da to water is 1:600, the measured pH value reaches 5.5, and stir evenly at room temperature.

[0174] 2. Check the pH value of the prepared solution. The pH value should reach 5.6. The pH value must be checked. If it does not meet the requirements, add citric acid to make it reach the required standard. The pH value of the solution must be tested and prepared before adding H to the fabric.

[0175] 3. Equipment debugging before treatment, running speed 32m / min, temperature: 137℃.

[0176] 3. Place a 12×12cm 2 The wool knitted fabric is put into the machine, treated with collagen solution and dried.

[0177] Comparative Example 6

[0178] The same method as in Example 1 is used, except that in the preparation of the biological finishing solution, the collagen with a molecular weight of 7000Da is replaced with collagen with a molecular weight of 450Da, to obtain a biological finishing solution 40 with a collagen concentration of 50g / L.

[0179] The wool knitted fabric is finished according to the wool knitted fabric finishing method in step (2) of Example 1, except that the biological finishing liquid 1 is replaced by the biological finishing liquid 40.

[0180] The wool knitted fabrics after finishing of Comparative Examples 1 to Comparative Examples 6 were subjected to performance tests according to the testing method of Example 1. The test results are shown in Table 14.

[0181] Table 14

[0182]

[0183]

[0184] Note: “-” in Table 14 means no relevant data involved.

[0185] It can be seen from the results in Tables 1 to 14 that Examples 1 to 13 of wool knitted fabrics finished with the biological finishing liquid of the present invention can achieve the same or even better finishing effects as the finishing liquid with the best finishing effect in the prior art, namely, Comparative Examples 1 to 4, and that Examples 1 to 13 of wool knitted fabrics finished with the biological finishing liquid of the present invention have significantly better effects in terms of anti-pilling than Comparative Examples 5 and 6.

[0186] The specific detection method of the dynamic directional friction effect and the static directional friction effect of the untreated wool fiber and the wool fiber treated with the biological finishing liquid in Examples 1 to 13 and Comparative Examples 1 to 6 is as follows: a 12×12 cm 2The wool knitted fabric (purchased from Inner Mongolia Luwang Cashmere Co., Ltd., product batch number 24YCYD0672, article number ZXCC46411) and 100 mL of the biological finishing liquid are padded by a small padder, the pressure of the small padder is controlled to be 0.09 MPa, the time is 5 min, the temperature is 20° C., and the liquid carrying rate of the wool knitted fabric after padding is 90%; then, the wool knitted fabric is dried for 15 min at a temperature of 50° C. by an electric heating blast dryer to obtain wool fibers treated with the biological finishing liquid;

[0187] The wool fibers treated with the biological finishing solution were used as samples. The XCF-1A fiber friction coefficient tester was used with a tension clamp load of 200×10 -3 cN, load range 150×10 -3 cN, the friction roller speed is 30r / min; the friction roller is a metal roller with a diameter of 8mm; the dynamic and static friction coefficients of the test samples in the direction of the scales and against the scales are μ 顺 , μ 逆 , the dynamic and static directional friction effect (DFE) of the sample is calculated according to the following formula; 30 fibers are tested for each sample, μ 顺 , μ 逆 Take the average value;

[0188]

[0189] The results of the friction coefficient measurements of untreated wool fibers, the wool fibers in Examples 1 to 13, and Comparative Examples 1 to 6 are shown in Table 15.

[0190] Table 15

[0191]

[0192] As shown in Table 15, the DFE and forward and reverse friction coefficients of wool fibers treated with collagen are lower than those of untreated wool fibers. This is mainly due to the low molecular weight of collagen, part of which can enter the fiber scale layer, enhancing the adhesion between the scale layer and the fiber; while the other part forms a thin film on the surface of the wool fiber, wrapping the scale layer on the fiber surface, making the fiber surface smoother, thereby reducing the friction coefficient of the fiber surface, and then making the friction coefficient of the finished fiber within a specific range, so that the fiber has the effect of resisting pilling and fuzzing.

[0193] The present invention controls the pH of a solution containing collagen with a molecular weight of 800-100000Da within a specific range. When the solution is used as a biological finishing liquid for fabric finishing, the collagen can firmly adhere the fiber and the scale layer together, making the fiber surface smoother, reducing the friction and entanglement between the fibers, thereby reducing the directional friction effect, effectively preventing the fabric from pilling and fuzzing, and maintaining the natural comfort and softness of the fabric. The formula is safe, no chemical additives are required, and the preparation is simple.

[0194] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various technical features in any other suitable manner, and these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A biological finishing liquid, characterized in that: The biological finishing liquid contains collagen with a molecular weight of 800-100000Da and a solvent, and the pH value of the biological finishing liquid is 6-8.

2. The biological finishing liquid according to claim 1, characterized in that The dynamic directional friction effect of the fabric fibers treated with the biological finishing liquid is 10-24%; the static directional friction effect is 13-29%.

3. The biological finishing liquid according to claim 1, characterized in that The molecular weight of the collagen in the biological finishing solution is 1000-7000Da; Preferably, the concentration of collagen in the biological finishing liquid is 10-70 g / L.

4. The biological finishing liquid according to claim 1, characterized in that The pH value of the biological finishing liquid is 7-8; Preferably, the pH of the biological finishing liquid is adjusted using a pH adjuster, and the pH adjuster is selected from at least one of an acetic acid solution, a sulfuric acid solution and a carbonate solution.

5. Use of the biological finishing liquid according to any one of claims 1 to 4 in anti-pilling treatment of fabrics, preferably wool fabrics.

6. A method for finishing fabrics against pilling, characterized in that: The following steps are involved: After the fabric is in contact with the biological finishing liquid, a drying treatment is performed; the biological finishing liquid contains collagen with a molecular weight of 800-100000Da and a solvent, and the pH value of the biological finishing liquid is 6-8.

7. The finishing method according to claim 6, characterized in that: The dynamic directional friction effect of the fabric fibers treated with the biological finishing liquid is 10-24%; the static directional friction effect is 13-29%; Preferably, the molecular weight of the collagen in the biological finishing solution is 1000-7000Da; Preferably, the concentration of collagen in the biological finishing solution is 10-70 g / L; Preferably, the pH value of the biological finishing liquid is 7-8; Preferably, the pH of the biological finishing liquid is adjusted using a pH adjuster, and the pH adjuster is selected from at least one of an acetic acid solution, a sulfuric acid solution and a carbonate solution.

8. The finishing method according to claim 6 or 7, characterized in that: The contacting process includes: padding treatment and / or dipping treatment.

9. The finishing method according to claim 8, characterized in that: The padding treatment conditions at least include: a temperature of 20-35°C, a pressure of 0.09-0.11 MPa, a time of 5-30 min, and a liquid carrying rate of the fabric after the padding treatment of 90-110%; The impregnation process includes: the temperature is 20-60°C, the impregnation is 10-30 minutes, and then a dehydration process is performed. After the dehydration process, the liquid carrying rate of the fabric is 45-55%.

10. The finishing method according to claim 6 or 7, characterized in that: The drying conditions at least include: a temperature of 50-60° C. and a time of 15-30 min.

Images