Textile processing method and textile sizing slurry

Abstract

The present invention discloses a textile sizing slurry and a textile sizing slurry, wherein the sizing slurry contains modified poly(methyl acrylate), and the modified poly(methyl acrylate) is prepared by mixing poly(methyl acrylate), a specific silicon-containing compound and a specific sulfur-containing compound, performing a transesterification reaction to produce a modified intermediate, and then causing a complex formation reaction between platinum ions and sulfur in the molecular chain of the modified intermediate to produce modified poly(methyl acrylate). The present invention discloses a textile sizing slurry and a textile sizing slurry, wherein the sized textile simultaneously possesses high strength and long-term uniform antibacterial properties, solving the problem of compromises that exist in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of fiber or fabric treatment, particularly to the treatment of fibers or fabrics with long-lasting antibacterial polymer compounds, which endows fibers or fabrics with long-lasting antibacterial properties while enhancing the elasticity, toughness, strength, etc. of the fabrics. Specifically, it relates to a fabric treatment method and a fabric sizing slurry.

Background Art

[0002] Poly(methyl acrylate) is a kind of polyacrylate polymer and is commonly used in fabrics, leather, paper treatment agents, adhesives, and is used for warp sizing of fabrics such as polyester / cotton and polyester / acrylic, and can enhance the elasticity and toughness of the fabrics. However, poly(methyl acrylate) has low strength and low wear resistance. At the same time, in the social environment where the pandemic management of COVID-19 is normalized, the demand for antibacterial properties has increased rapidly. By adding antibacterial agents to the slurry, the fabrics sized can also have antibacterial performance.

[0003] Currently, as a method for increasing strength, a strength enhancer (such as silicon dioxide or aluminum salt) is added to the poly(methyl acrylate) slurry to enhance the strength of the fabrics after sizing. As a method for increasing antibacterial function, an antibacterial and corrosion-resistant agent is added to the poly(methyl acrylate) slurry to endow the fabrics after sizing with antibacterial performance. However, as a result of practice, when the above two methods are carried out and used simultaneously, the strength enhancer forms a barrier layer on the surface of the fabrics, and the antibacterial agent is trapped inside the fabrics, and there is almost no antibacterial effect on the surface of the fabrics, and it is difficult to combine the strength and antibacterial performance of the fabrics, and this problem has been discovered.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present invention aims to provide an improved method for processing textiles that overcomes one or more shortcomings of the prior art, performs textile sizing using a sizing slurry containing a specific modified poly(methyl acrylate), and simultaneously provides the sized textile with high strength and long-lasting, uniform antibacterial properties, thereby resolving the trade-off problem present in the prior art where one aspect inevitably leads to another. [Means for solving the problem]

[0005] The present invention also provides a fabric sizing slurry containing a specific modified poly(methyl acrylate).

[0006] To achieve the above objective, one technical solution employed in the present invention is: A method for treating a textile, comprising performing a sizing treatment on the textile using a sizing slurry, wherein the sizing slurry contains modified poly(methyl acrylate), and the modified poly(methyl acrylate) is prepared by mixing poly(methyl acrylate), a compound represented by formula (I), and a compound represented by formula (II), performing a transesterification reaction to produce a modified intermediate, and then causing a complex formation reaction between platinum ions and sulfur in the molecular chain of the modified intermediate to produce modified poly(methyl acrylate), wherein the platinum ions are produced by causing an oxidation reaction between nanoplatinum and a peroxide. [ka] Here, R1, R2, R3, and R4 are each independently unsubstituted C 1~6 Selected from alkyl groups, or halogens, C 1~3 C substituted with one or more substituents selected from alkyl groups and phenyl groups 1~6 Selected from alkyl groups.

[0007] In this invention, some of the methyl ester groups on the poly(methyl acrylate) molecular chain undergo a transesterification reaction with the compound shown in formula (I), a silicon-containing group is linked to the branched chain of the molecular chain, some of the methyl ester groups undergo a transesterification reaction with the compound shown in formula (II), a sulfur-containing group is further linked to the branched chain of the molecular chain, the sulfur has a lone pair of electrons, nanoplatinum reacts with a peroxide to be oxidized to a platinum ion, the platinum ion has an empty orbital and can be compounded with sulfur on a thioether that has a lone pair of electrons, and the molecular chain is further endowed with a platinum ion, the platinum ion acts as a connector and can connect multiple poly(methyl acrylate) molecular chains to which sulfur-containing groups are attached.

[0008] An example reaction step is as follows: [ka]

[0009] In this reaction process, we have only exemplified the case where each of two adjacent methyl ester groups undergoes a transesterification reaction with one of the compounds represented by formula (I) and formula (II), after which the platinum ion is complexed with sulfur in the molecular chain, and furthermore, the platinum ion is uniformly distributed in the system and firmly bound to the molecular chain. However, of course, it is also possible for multiple adjacent methyl ester groups to undergo transesterification reactions with either the compound represented by formula (I) or the compound represented by formula (II). In other words, modified poly(methyl acrylate) is not a single molecular structure, but rather has multiple molecular structures, and the difference between these multiple molecular structures lies in whether the methyl ester group undergoes a transesterification reaction with one of the compounds represented by formula (I) and formula (II).

[0010] According to a preferred and specific embodiment of the present invention, R1, R2, R3, and R4 are each independently a methyl group, an ethyl group, a propyl group, a monochloromethyl group, a monobromomethyl group, and a dichloromethyl group. Selected from a methyl group, a dibromomethyl group, a trichloromethyl group, or a tribromomethyl group.

[0011] According to one specific embodiment of the present invention, the compound represented by formula (I) is trimethylsilylpropionate, and the compound represented by formula (II) is 3-(methylthio)propanol acetate.

[0012] According to some preferred embodiments of the present invention, the transesterification reaction is carried out in a solvent under alkaline conditions and at a reaction temperature of 65-85°C.

[0013] According to some preferred embodiments of the present invention, the alkaline conditions are formed by adding an alkaline substance, the alkaline substance including sodium acetate, potassium acetate, sodium carbonate, or potassium carbonate.

[0014] According to some preferred embodiments of the present invention, the solvent is n-heptane.

[0015] According to some preferred embodiments of the present invention, the mass ratio of the poly(methyl acrylate), the solvent, and the alkaline substance is 1:0.5 to 1.8:0.001 to 0.01.

[0016] According to some preferred embodiments of the present invention, the mass ratio of the poly(methyl acrylate), the compound represented by formula (I), and the compound represented by formula (II) is 1:0.1~0.35:0.1~0.38.

[0017] According to the present invention, the poly(methyl acrylate) can be obtained from a commercially available source.

[0018] Preferably, the method for preparing the poly(methyl acrylate) is: The process involves adding an aqueous sodium hydroxide solution to methyl acrylate (commonly, commercially available methyl acrylate contains polymerization inhibitors) and stirring to remove the polymerization inhibitor by separating the water, and Add an emulsifier and sodium bicarbonate to deionized water, and while stirring under a nitrogen atmosphere at a temperature of 70 to 90 °C, add methyl acrylate from which a polymerization inhibitor has been removed and an initiator to react. After the reaction is completed, return the temperature to room temperature, wash with pure water, and separate the white milky substance with a filter cloth to obtain poly(methyl acrylate).

[0019] In some embodiments of the present invention, during the preparation of the poly(methyl acrylate), the emulsifier may be alkylphenol polyoxyethylene ether (OP-10).

[0020] In some embodiments of the present invention, during the preparation of the poly(methyl acrylate), the initiator may be tert-butyl hydroperoxide (TBHP).

[0021] According to some preferred embodiments of the present invention, the complex formation reaction is carried out at a reaction temperature of 35 to 45 °C.

[0022] According to some preferred embodiments of the present invention, the peroxide is added in the form of an aqueous solution of the peroxide.

[0023] According to a preferred specific embodiment of the present invention, the peroxide is peracetic acid, and peracetic acid is added in the form of an aqueous solution of peracetic acid.

[0024] In some preferred embodiments of the present invention, the implementation method for preparing the platinum ion includes mixing an aqueous solution of nanoparticle platinum with an aqueous solution of peracetic acid to cause an oxidation reaction to generate platinum ions.

[0025] According to some preferred embodiments of the present invention, the method for preparing the nanoplatinum aqueous solution includes the steps of reacting potassium chlorplatinate, sodium borohydride, citric acid, and lactic acid in water under heating conditions in the presence of polyvinylpyrrolidone and under the protection of a protective gas to generate nanoplatinum precursor particles, separating the nanoplatinum precursor particles, dispersing them in water, and obtaining the nanoplatinum aqueous solution by ultrasonic vibration and ultraviolet irradiation with a wavelength of 200 to 350 nm.

[0026] Furthermore, during the preparation of the nanoplatinum aqueous solution, the mass ratio of potassium chlorplatinate, sodium borohydride, citric acid, lactic acid, and polyvinylpyrrolidone added is 1:10, 16:25, 35:10, 20:20, and 30.

[0027] Furthermore, during the preparation of the nanoplatinum aqueous solution, the heating conditions are such that the reaction proceeds at a temperature of 55-65°C.

[0028] According to some preferred embodiments of the present invention, the nanoplatinum content in the nanoplatinum aqueous solution is 0.01 to 5 mg / mL.

[0029] In some embodiments of the present invention, the protective gas during the preparation of the nanoplatinum aqueous solution may be nitrogen, helium, or the like.

[0030] According to a preferred and specific embodiment of the present invention, the particle size of the nanoplatinum is 3 to 8 nm.

[0031] According to some preferred embodiments of the present invention, the mass ratio of the nanoplatinum to the compound represented by formula (II) is 0.000005 to 0.000015:1.

[0032] According to some preferred embodiments of the present invention, the amount of peroxide added is 0.05% to 0.15% by mass of the modified intermediate.

[0033] According to some preferred embodiments of the present invention, the modified poly(methyl acrylate) accounts for 45% to 70% by mass in the sizing slurry.

[0034] According to some preferred embodiments of the present invention, the sizing slurry comprises, by mass percentage, 45% to 70% modified poly(methyl acrylate), 10% to 35% methyl acrylate, 1% to 10% acrylonitrile, and 1% to 10% sodium acrylate.

[0035] Furthermore, by mass percentage, the sizing slurry contains 50% to 70% modified poly(methyl acrylate), 15% to 35% methyl acrylate, 2% to 10% acrylonitrile, and 2% to 10% sodium acrylate.

[0036] In some embodiments of the present invention, the sizing process may be performed using a single immersion-double press method, that is, one immersion and two presses, and the immersion time may be adjusted.

[0037] In some embodiments of the present invention, the sizing process is performed using a Karl Mayer double-size slot sizing machine, with parameters such as a sizing speed of 30~ The flow rate is 60 m / min, the sizing slot (sizing tank) temperature is 50-60°C, the sizing rate is 8-15%, the main squeezing pressure (sizing force) is 15-30 kN, and the auxiliary squeezing pressure (sizing force) is 6-15 kN.

[0038] In some embodiments of the present invention, the method for processing the fabric further comprises a step of drying after sizing, wherein the drying method includes, but is not limited to, being performed with an infrared dryer, and the drying temperature may be 100 to 120°C and the drying time may be 20 to 60 min.

[0039] Another technical solution provided in the present invention is a textile sizing slurry, which is a sizing slurry used in the textile processing method described above.

[0040] Another technical solution provided in the present invention is a textile sizing slurry comprising, by mass percentage, 45% to 70% modified poly(methyl acrylate), 10% to 35% methyl acrylate, 1% to 10% acrylonitrile, and 1% to 10% sodium acrylate. The modified poly(methyl acrylate) is prepared by mixing poly(methyl acrylate), a compound represented by formula (I), and a compound represented by formula (II), performing a transesterification reaction to produce a modified intermediate, and then causing a complex formation reaction between platinum ions and sulfur in the molecular chain of the modified intermediate to produce the modified poly(methyl acrylate). The platinum ions are produced by causing an oxidation reaction between nanoplatinum and a peroxide. [ka] Here, R1, R2, R3, and R4 are each independently unsubstituted C 1~6 Selected from alkyl groups, or halogens, C 1~3 C substituted with one or more substituents selected from alkyl groups and phenyl groups 1~6 Selected from alkyl groups. [Effects of the Invention]

[0041] By applying the above technical solutions, the present invention has the following advantages compared to the prior art.

[0042] In this invention, based on the trade-off problem that exists when conventionally treating fibers or products using poly(methyl acrylate) where improving one aspect inevitably leads to another, a silyl ester group is introduced into the molecular chain segment of poly(methyl acrylate) by transesterification reaction. At the same time, a sulfur-containing group having a specific chain segment is introduced, which not only increases strength but also improves the friction resistance of the slurry layer formed after the slurry dries, thus maintaining sustained performance. In particular, by introducing the sulfur-containing group, the modified polyacrylate of this invention combines with nanoplatinum, compounding platinum ions within the polymer chain segment. Because it can form complexes and binds in a composite form, the platinum ions always maintain high dispersibility within the system, retaining their corresponding effects. For example, they can provide a long-lasting antibacterial effect. The high dispersibility evenly balances the antibacterial effect throughout the entire fabric. Furthermore, the introduction of platinum ions prevents interference from other colors, thus maintaining the original color state of the slurry layer and reducing adverse effects on the fabric and its products. Moreover, this invention increases strength without reducing the antibacterial effect, thus achieving both and solving the trade-off problem that exists in the prior art. [Modes for carrying out the invention]

[0043] The above-mentioned solutions will be further explained below with the help of specific examples. It should be understood that these examples are used to illustrate the basic principles, main features, and advantages of the present invention, but the present invention is not limited to the scope of the following examples. The conditions used in the examples can be further adjusted according to specific requirements, and the conditions not described are generally those found in typical experiments.

[0044] In the following examples, unless otherwise specified, all raw materials are purchased from the market or prepared by conventional methods in the art.

[0045] The nanoplatinum aqueous solution used in the following examples can be prepared according to the following method. That is, potassium chloroplatinate (1 g), sodium borohydride (12 g), polyvinylpyrrolidone (25 g, purchased from Aladdin, K29-32), citric acid (30 g), and lactic acid (15 g) are added to deionized water (1 L), and the mixture is stirred and reacted at 60 °C for 2.5 hours under heating conditions to generate nanoplatinum precursor particles. During the reaction, nitrogen is continuously injected as an inert protective gas, and after the heating is completed, the solution is purified by column chromatography to remove reaction impurities. An appropriate amount of the purified nanoplatinum precursor particles is dispersed in deionized water, ultrasonically vibrated with a sound wave of 30 kHz for 30 minutes, and irradiated with ultraviolet light of a wavelength of 300 nm for 10 minutes to prepare a nanoplatinum aqueous solution. The average particle size of the nanoplatinum prepared by this method is about 5 nm, and the content of nanoplatinum in the nanoplatinum aqueous solution is 0.2 mg / mL.

[0046] The poly(methyl acrylate) used in the following examples is prepared according to the following method. Step of removing polymerization inhibitor: 400 g of methyl acrylate is added with an aqueous sodium hydroxide solution with a mass percentage of 5% (volume ratio of methyl acrylate to 5% aqueous sodium hydroxide solution is 5:1), stirred for 10 hours, and the water is separated. 4 g of alkylphenol polyoxyethylene ether (OP-10) and 2 g of sodium bicarbonate are added to 500 mL of deionized water. Under nitrogen protection at a temperature of 80 °C, while stirring, methyl acrylate from which the polymerization inhibitor has been removed and 1 g of tert-butyl hydroperoxide (TBHP) are added, and the reaction is carried out for 5 hours. After the reaction is completed, the temperature is returned to room temperature, washed with pure water, and the white milky substance is separated by a filter cloth to obtain poly(methyl acrylate).

[0047] Methyl acrylate is purchased from Aladdin and is analytically pure. Acrylonitrile is purchased from Aladdin and has a purity of ≥99%. Sodium acrylate is purchased from Ronchemistry and has a purity of ≥95%. Alkylphenol polyoxyethylene ether (OP-10) was purchased from Wuhan Lanabai Pharmaceutical and Chemical Co., Ltd., with a purity of ≥ 99%. tert-Butyl hydroperoxide was purchased from Dongying Haijing Chemical Co., Ltd., with a purity of ≥ 70%. Trimethylsilyl propionate was purchased from Aladdin, with a purity of ≥ 95%. 3-Methylthiopropanol acetate was purchased from Aladdin, with a purity of ≥ 99%. Peracetic acid was purchased from Jingmen Shuangxiong Biotechnology Co., Ltd., with a concentration of 15%.

[0048] Example 1: In this example, a fabric sizing slurry containing 50% modified poly(methyl acrylate), 35% methyl acrylate, 7% acrylonitrile, and 8% sodium acrylate by mass percentage was provided. The fabric sizing slurry was obtained by mixing modified poly(methyl acrylate), methyl acrylate, acrylonitrile, and sodium acrylate according to the formulation. Here, the modified poly(methyl acrylate) was prepared by the following method. Step 1: 172 g of poly(methyl acrylate), 36.5 g of trimethylsilyl propionate, and 37 g of 3-(methylthio)propanol acetate were uniformly mixed and stirred. Using 250 mL of n-heptane as the solvent system and 0.5 g of sodium acetate as the catalyst for transesterification, the reaction temperature was set at 75 °C, and the mixture was stirred for 8 hours to react. The temperature was lowered to room temperature, and the milky solid (modified intermediate) was separated by a filter cloth, washed with pure water, washed with ethanol, and dried. Step 2: 10 mL of a nanopalladium aqueous solution with a concentration of 0.2 mg / mL was measured, 1.0 mL of peracetic acid (aqueous solution, mass percentage content 15%) was added, and after stirring, it was mixed with the modified intermediate from Step 1 and stirred in a water bath at 40 °C for 30 minutes to react. Step 3: The solvent was removed by distillation under reduced pressure (8000 Pa, 40 °C) to obtain modified poly(methyl acrylate).

[0049] Example 2: This example provides a fabric sizing slurry containing, by mass percentage, 60% modified poly(methyl acrylate), 25% methyl acrylate, 7% acrylonitrile, and 8% sodium acrylate. The fabric sizing slurry is obtained by mixing modified poly(methyl acrylate), methyl acrylate, acrylonitrile, and sodium acrylate according to the formulation. Here, the modified poly(methyl acrylate) was prepared by the following method. Step 1: 200 g of poly(methyl acrylate), 40 g of trimethylsilylpropionate, and 35 g of 3-(methylthio)propanol acetate were uniformly mixed and stirred. 280 mL of n-heptane was used as the solvent, and 0.6 g of sodium acetate was used as the catalyst for transesterification. The reaction was carried out at a temperature of 80°C with stirring for 9 hours. The temperature was then lowered to room temperature, and the milky solid (modified intermediate) was separated using a filter cloth. The mixture was washed with pure water, washed with ethanol, and dried. Step 2: 12 mL of a 0.2 mg / mL concentration nanoplatinum aqueous solution was measured, 1.5 mL of peracetic acid (aqueous solution, 15% by mass) was added, and after stirring, it was mixed with the modified intermediate from Step 1 and reacted by stirring in a 42°C water bath for 45 minutes. Step 3: The solvent was removed by distillation under reduced pressure (8000 Pa, 40°C) to obtain modified poly(methyl acrylate).

[0050] Example 3: This example provides a fabric sizing slurry containing, by mass percentage, 70% modified poly(methyl acrylate), 15% methyl acrylate, 7% acrylonitrile, and 8% sodium acrylate. The fabric sizing slurry is obtained by mixing modified poly(methyl acrylate), methyl acrylate, acrylonitrile, and sodium acrylate according to the formulation. Here, the modified poly(methyl acrylate) was prepared by the following method. Step 1: 150 g of poly(methyl acrylate), 30 g of trimethylsilylpropionate, and 42 g of 3-(methylthio)propanol acetate were uniformly mixed and stirred. 220 mL of n-heptane was used as the solvent, and 0.4 g of sodium acetate was used as the catalyst for transesterification. The reaction was carried out at a temperature of 80°C with stirring for 9 hours. The temperature was then lowered to room temperature, and the milky solid (modified intermediate) was separated using a filter cloth. The mixture was washed with pure water, washed with ethanol, and dried. Step 2: Measure 14 mL of a 0.2 mg / mL concentration nanoplatinum aqueous solution and add 2.0 mL of peroxide. An acid (aqueous solution, 15% by mass) was added and stirred. This mixture was then combined with the modified intermediate from step 1 and reacted by stirring in a 38°C water bath for 37 minutes. Step 3: The solvent and low molecular weight by-products were removed by distillation under reduced pressure (8000 Pa, 40°C) to obtain modified poly(methyl acrylate).

[0051] Comparative Example 1: This is almost identical to Example 1, the only difference being that the modified poly(methyl acrylate) is replaced with unmodified poly(methyl acrylate).

[0052] Comparative Example 2: This is almost identical to Example 1, the only difference being that modified poly(methyl acrylate) is replaced with unmodified poly(methyl acrylate), and silicon dioxide and an antibacterial agent (nano-silver antibacterial agent) are added to the slurry.

[0053] Comparative Example 3: This is almost identical to Example 1, the only difference being that 3-(methylthio)propanol acetate is not added during the preparation of the modified poly(methyl acrylate).

[0054] Application Example 1: In this example, a method for processing textiles is provided, in which a textile is sized using the textile sizing slurry of Example 1, the raw material of the textile is basically polyester staple fibers, the sizing process is carried out using a Karl Mayer double-size slot sizing machine, the parameters being a sizing speed of 45 m / min, a size slot (sizing tank) temperature of 55°C, a sizing rate of 12.5%, a main squeezing pressure (sizing force) of 22 kN, and an auxiliary squeezing pressure (sizing force) of 11 kN, followed by drying using an infrared dryer at a drying temperature of 110°C and a drying time of 40 min, thereby obtaining a sized textile.

[0055] Application Example 2: In this example, a method for processing textiles is provided, in which a textile is sized using the textile sizing slurry of Example 2, the raw material of the textile is basically polyester staple fibers, the sizing process is carried out using a Karl Mayer double-size slot sizing machine, the parameters being a sizing speed of 45 m / min, a size slot (sizing tank) temperature of 55°C, a sizing rate of 12.5%, a main squeezing pressure (sizing force) of 22 kN, and an auxiliary squeezing pressure (sizing force) of 11 kN, followed by drying using an infrared dryer at a drying temperature of 110°C and a drying time of 40 min, thereby obtaining a sized textile.

[0056] Application Example 3: In this example, a method for processing textiles is provided, in which a textile is sized using the textile sizing slurry of Example 3, the raw material of the textile is basically polyester staple fibers, the sizing process is carried out using a Karl Mayer double-size slot sizing machine, the parameters being a sizing speed of 45 m / min, a size slot (sizing tank) temperature of 55°C, a sizing rate of 12.5%, a main squeezing pressure (sizing force) of 22 kN, and an auxiliary squeezing pressure (sizing force) of 11 kN, followed by drying using an infrared dryer at a drying temperature of 110°C and a drying time of 40 min, thereby obtaining a sized textile.

[0057] Comparative Example 1: This is almost the same as in Example 1, the only difference being that the fabric sizing slurry of Comparative Example 1 is used. It is solely for the purpose of performing sizing treatment on the woven fabric.

[0058] Comparative Example 2: This is almost identical to Example 1, the only difference being that the fabric is sizing treated using the fabric sizing slurry of Comparative Example 2.

[0059] Comparative Example 3: This is almost identical to Example 1, the only difference being that the fabric is sizing treated using the fabric sizing slurry of Comparative Example 3.

[0060] Performance test: The following performance tests were performed on the fabrics obtained in the above-mentioned Application Examples 1-3 and Application Comparative Examples 1-3, and the specific results were as follows.

[0061] In Application Example 1, the original breaking strength (cN) was 1065, the breaking strength (cN) after sizing treatment was 1280, the strengthening rate was 20.19%, the antibacterial rate (initial) was 99.6%, and the antibacterial rate (after one year) was 99.0%. Regarding wear resistance, it was damaged after 2000 friction cycles at a pressure of 12 kPa. In Example 2, the original breaking strength (cN) was 1065, the breaking strength (cN) after sizing treatment was 1290, the strengthening rate was 21.13%, the antibacterial rate (initial) was 99.7%, and the antibacterial rate (after one year) was 99.1%. Regarding wear resistance, it was damaged after 2000 friction cycles at a pressure of 12 kPa. In Application Example 3, the original breaking strength (cN) was 1065, the breaking strength (cN) after sizing treatment was 1305, the strengthening rate was 22.54%, the antibacterial rate (initial) was 99.9%, and the antibacterial rate (after one year) was 99.2%. Regarding wear resistance, it was damaged after 2000 friction cycles at a pressure of 12 kPa. In Comparative Example 1, the original breaking strength (cN) was 1065, the breaking strength (cN) after sizing treatment was 1150, the strengthening rate was 7.98%, and the antibacterial rate (initial) was 0%. Regarding wear resistance, it was damaged after 500 friction cycles at a pressure of 12 kPa. In comparative example 2, the original tensile strength (cN) was 1065, the tensile strength (cN) after sizing treatment was 1350, the strengthening rate was 26.76%, the antibacterial rate (initial) was 66.7%, and the antibacterial rate (after one year) was 33.3%. Regarding wear resistance, it was damaged after 2000 friction cycles at a pressure of 12 kPa. In comparative example 3, the original breaking strength (cN) was 1065, the breaking strength (cN) after sizing treatment was 1200, the strengthening rate was 12.68%, the antibacterial rate (initial) was 50.0%, and the antibacterial rate (after one year) was 31.2%. Regarding wear resistance, it will be damaged after 1500 friction cycles at a pressure of 12 kPa.

[0062] Test method for each of the above performance characteristics: Breaking strength is measured according to the test method of GB / T3923-2013 "Tensile performance of textile fabrics," and the reinforcement rate is = (Breaking strength after sizing - Original breaking strength) / Original breaking strength × 100%. Regarding antimicrobial performance testing, see GB / T20944.2-2007 Evaluation of antimicrobial performance of textiles, Part 2: Measurement by absorption method. Abrasion resistance is determined according to GB / T21196 "Measurement of Textile Abrasion Resistance by the Textile Martindale Method".

[0063] As can be seen from the above, compared to the examples, in Comparative Example 1, modified poly(methyl acrylate) was replaced with unmodified poly(methyl acrylate), resulting in lower abrasion resistance and antibacterial properties. In Comparative Example 2, silicon dioxide and an antibacterial agent were added, resulting in good abrasion resistance, but both antibacterial properties and antibacterial persistence were low. In Comparative Example 3, modified poly(methyl acrylate) During the preparation of the compound, 3-(methylthio)propanol acetate was not added, resulting in a significant decrease in abrasion resistance, as well as low antibacterial properties and sustained antibacterial activity.

[0064] The above embodiments are merely for illustrating the technical idea and features of the present invention, and their purpose is to enable a person familiar with this art to understand and implement the present invention, but not to limit the scope of protection of the present invention. Any substantially equivalent modifications or alterations made in accordance with the idea of ​​the present invention should be included within the scope of protection of the present invention.

[0065] None of the endpoints of the ranges and any values ​​disclosed herein are limited to those precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to them. For numerical ranges, the intervals between the endpoint values ​​of each range, between the endpoint values ​​of each range and single-point values, and between single-point values ​​can be combined to obtain one or more numerical ranges, and these numerical ranges should be considered specifically disclosed herein.

Claims

1. A method for processing textiles, which includes performing a sizing treatment on a textile using a sizing slurry, The sizing slurry contains modified poly(methyl acrylate), The modified poly(methyl acrylate) is prepared by mixing poly(methyl acrylate), a compound represented by formula (I), and a compound represented by formula (II), carrying out a transesterification reaction to produce a modified intermediate, and then causing a complex formation reaction between platinum ions and sulfur in the molecular chain of the modified intermediate to produce the modified poly(methyl acrylate). The aforementioned platinum ions are produced by generating an oxidation reaction between nanoplatinum and a peroxide. 【Chemistry 1】 Here, R １ , R ２ , R ３ , R ４ These are each independent of substitution C １～６ Selected from alkyl groups, or halogens, C １～３ C substituted with one or more substituents selected from alkyl groups and phenyl groups １～６ Selected from alkyl groups, The transesterification reaction is carried out in a solvent under alkaline conditions at a reaction temperature of 65 to 85°C, and the mass ratio of the poly(methyl acrylate), the compound represented by formula (I), and the compound represented by formula (II) is 1:0.1 to 0.35:0.1 to 0.

38. The complex formation reaction is carried out at a reaction temperature of 35 to 45°C. The peroxide is peracetic acid, and the peracetic acid is added in the form of an aqueous solution of peracetic acid. The method for preparing the aforementioned platinum ions includes mixing an aqueous nanoplatinum solution with an aqueous peracetic acid solution to generate an oxidation reaction and produce platinum ions, The particle size of the aforementioned nanoplatinum is 3 to 8 nm. The mass ratio of the nanoplatinum to the compound represented by formula (II) is 0.000005 to 0.000015:

1. A method for processing textiles, characterized by the following features.

2. A method for processing textiles, which includes performing a sizing treatment on a textile using a sizing slurry, The sizing slurry contains modified poly(methyl acrylate), The modified poly(methyl acrylate) is prepared by mixing poly(methyl acrylate), a compound represented by formula (I), and a compound represented by formula (II), carrying out a transesterification reaction to produce a modified intermediate, and then causing a complex formation reaction between platinum ions and sulfur in the molecular chain of the modified intermediate to produce the modified poly(methyl acrylate). The aforementioned platinum ions are produced by generating an oxidation reaction between nanoplatinum and a peroxide. 【Chemistry 2】 Here, R １ 、R ２ 、R ３ 、R ４ is each independently selected from unsubstituted C １～６ alkyl groups, or is a C １～３ alkyl group substituted with one or more substituents selected from halogen, C １～６ alkyl groups, and phenyl groups A method for processing textiles, characterized by the following features.

3. R １ , R ２ , R ３ , R ４ Each of these groups is independently selected from methyl, ethyl, propyl, monochloromethyl, monobromomethyl, dichloromethyl, dibromomethyl, trichloromethyl, or tribromomethyl groups. The method for processing textiles according to feature 1.

4. The compound represented by formula (I) is trimethylsilylpropionate, and the compound represented by formula (II) is 3-(methylthio)propanol acetate. The method for processing textiles according to feature 3.

5. The method for treating a textile according to claim 2, characterized in that the transesterification reaction is carried out in a solvent under alkaline conditions at a reaction temperature of 65 to 85°C.

6. The alkaline conditions are formed by adding an alkaline substance, the alkaline substance including sodium acetate, potassium acetate, sodium carbonate, or potassium carbonate. The method for processing textiles according to feature 5.

7. The solvent is n-heptane. The method for processing textiles according to feature 5.

8. The mass ratio of the poly(methyl acrylate), the solvent, and the alkaline substance is 1:0.5 to 1.8:0.001 to 0.

01. The method for processing textiles according to feature 6 or 7.

9. The mass ratio of the poly(methyl acrylate), the compound represented by formula (I), and the compound represented by formula (II) is 1:0.1 to 0.35:0.1 to 0.

38. The method for processing textiles according to feature 2.

10. The complex formation reaction is carried out at a reaction temperature of 35 to 45°C. The method for processing textiles according to feature 2.

11. The particle size of the nanoplatinum is 3 to 8 nm. The method for processing textiles according to feature 2.

12. The peroxide is peracetic acid, and the peracetic acid is added in the form of an aqueous solution of peracetic acid. The method for preparing the platinum ions includes mixing an aqueous nanoplatinum solution with an aqueous peracetic acid solution to generate an oxidation reaction and produce platinum ions. The method for processing textiles according to feature 2.

13. The method for preparing the aforementioned nanoplatinum aqueous solution includes the steps of: reacting potassium chlorplatinate, sodium borohydride, citric acid, and lactic acid in water under heating conditions in the presence of polyvinylpyrrolidone and under the protection of a protective gas to generate nanoplatinum precursor particles; separating the nanoplatinum precursor particles, dispersing them in water, and obtaining a nanoplatinum aqueous solution by ultrasonic vibration and ultraviolet irradiation with a wavelength of 200 to 350 nm. The method for processing textiles according to feature 12.

14. The mass ratio of potassium chlorplatinate, sodium borohydride, citric acid, lactic acid, and polyvinylpyrrolidone is 1:10 to 16:25 to 35:10 to 20:20 to 30. The method for processing textiles according to feature 13.

15. The heating conditions described above are such that the reaction proceeds at a temperature of 55 to 65°C. The method for processing textiles according to feature 13.

16. In the aforementioned aqueous nanoplatinum solution, the nanoplatinum content is 0.01 to 5 mg / mL. The method for processing textiles according to feature 13.

17. The protective gas is nitrogen or an inert gas, and the inert gas contains helium. The method for processing textiles according to feature 13.

18. The mass ratio of the nanoplatinum to the compound represented by formula (II) is 0.000005 to 0.000015:

1. The method for processing textiles according to feature 2.

19. The amount of peroxide added is 0.05% to 0.15% by mass of the modified intermediate. The method for processing textiles according to feature 2.

20. The method for preparing the aforementioned poly(methyl acrylate) is as follows: The process includes: adding an aqueous sodium hydroxide solution to methyl acrylate and stirring to separate the water; adding an emulsifier and sodium bicarbonate to deionized water, and reacting the treated methyl acrylate with an initiator at a temperature of 70-90°C under a nitrogen atmosphere while stirring; after the reaction is complete, returning the temperature to room temperature, washing with pure water, separating the white milky substance using a filter cloth to obtain poly(methyl acrylate). The method for processing textiles according to feature 1 or 2.

21. During the preparation of the poly(methyl acrylate), the emulsifier comprises alkylphenol polyoxyethylene ether, and the initiator comprises tert-butyl hydroperoxide. The method for processing textiles according to feature 20.

22. In the sizing slurry, the modified poly(methyl acrylate) accounts for 45% to 70% by mass. The method for processing textiles according to feature 1 or 2.

23. The sizing slurry contains, by mass percentage, 45% to 70% modified poly(methyl acrylate), 10% to 35% methyl acrylate, 1% to 10% acrylonitrile, and 1% to 10% sodium acrylate. The method for processing textiles according to feature 22.

24. The sizing slurry contains, by mass percentage, 50% to 70% modified poly(methyl acrylate), 15% to 35% methyl acrylate, 2% to 10% acrylonitrile, and 2% to 10% sodium acrylate. The method for processing textiles according to feature 23.

25. The sizing process described above uses a single immersion / double press method, which means one immersion and two presses. The method for processing textiles according to feature 1 or 2.

26. The sizing process is performed using a Karl Mayer double-size slot sizing machine, with the following parameters: sizing speed of 30-60 m / min, size slot temperature of 50-60°C, sizing rate of 8-15%, primary squeezing pressure of 15-30 kN, and auxiliary squeezing pressure of 6-15 kN. The method for processing textiles according to feature 1 or 2.

27. The aforementioned method for processing the fabric further comprises a drying step after sizing, wherein the drying is performed using an infrared dryer, with a drying temperature of 100 to 120°C and a drying time of 20 to 60 minutes. The method for processing textiles according to feature 1 or 2.

28. It is a textile sizing slurry, A sizing slurry used in the textile processing method according to any one of claims 1 to 27. A textile sizing slurry characterized by the following features.

29. It is a textile sizing slurry, The sizing slurry contains, by mass percentage, 45% to 70% modified poly(methyl acrylate), 10% to 35% methyl acrylate, 1% to 10% acrylonitrile, and 1% to 10% sodium acrylate. The modified poly(methyl acrylate) is prepared by mixing poly(methyl acrylate), a compound represented by formula (I), and a compound represented by formula (II), carrying out a transesterification reaction to produce a modified intermediate, and then causing a complex formation reaction between platinum ions and sulfur in the molecular chain of the modified intermediate to produce modified poly(methyl acrylate). The platinum ions are produced by causing an oxidation reaction between nanoplatinum and a peroxide. 【Transformation 3】 Here, R １ , R ２ , R ３ , R ４ These are each independent of substitution C １～６ Selected from alkyl groups, or halogens, C １～３ C substituted with one or more substituents selected from alkyl groups and phenyl groups １～６ Selected from alkyl groups A textile sizing slurry characterized by the following features.

Images