Crease-resistant garment material and preparation method thereof

Abstract

The invention discloses an anti-wrinkle garment fabric and a preparation method thereof, and relates to the technical field of fabrics, the preparation method comprises the following steps: blending cotton fibers and polyester fibers, respectively preparing warp yarns and weft yarns, spinning the warp yarns and the weft yarns into a blended fabric, dipping the blended fabric in a special finishing liquid, dipping twice and rolling twice, baking, washing with water, and air-drying, the anti-wrinkle garment fabric is obtained; according to the anti-wrinkle garment fabric, through synergistic interaction of a physical structure and chemical finishing, the anti-wrinkle garment fabric shows excellent anti-wrinkle shape-retaining property, can effectively resist wrinkles and easily recover flatness after being worn and washed, has softness and breathability of cotton and stiffness, smoothness and durability of polyester, has lasting anti-static and antibacterial functions, and is suitable for being popularized and applied. The fabric is comfortable, attractive, easy to care, healthy and protective, and has outstanding comprehensive performance.

Description

Technical Field

[0001] This invention relates to the field of fabric technology, specifically to an anti-wrinkle clothing fabric and its preparation method. Background Technology

[0002] With the development of society and the economy and the acceleration of the pace of life, consumers have increasingly higher requirements for clothing fabrics, not only pursuing comfort and aesthetics, but also setting higher standards for functionality and ease of care. Wrinkle resistance, as a key indicator for measuring the ease of care of fabrics, has always been a research hotspot in the textile field.

[0003] Cotton fiber, as a natural cellulose fiber, is mainly composed of cellulose macromolecules. The numerous hydrophilic hydroxyl (-OH) groups densely packed on the molecular chains endow cotton fabrics with excellent moisture absorption and breathability, a soft touch, and skin-friendliness, making it one of the most popular clothing materials. However, this chemical structure is also the root of its drawbacks: under the influence of water molecules, the hydrogen bonds between the cotton fiber macromolecular chains are easily broken. Under external forces, the molecular chains slip and form new hydrogen bonds in new positions, thus "fixing" the wrinkles. Therefore, pure cotton fabrics typically have poor elasticity recovery, are prone to wrinkling and do not easily recover their shape, resulting in poor shape retention and inconvenience for consumers' daily wear and care.

[0004] Polyester fiber, usually referring to polyethylene terephthalate (PET), is an important synthetic fiber. Its regular macromolecular structure, high crystallinity, and rigid molecular chains give polyester fabrics excellent strength, superior elastic recovery, and dimensional stability, resulting in excellent wrinkle resistance and shape memory effect. However, polyester fiber lacks hydrophilic groups, leading to poor moisture absorption and reduced comfort when worn. Simultaneously, its low moisture content makes it highly susceptible to static electricity generation and accumulation due to friction in dry environments, causing the fabric to cling to the skin, attract dust, and negatively impact both wearing experience and aesthetics.

[0005] Blending cotton and polyester fibers is a common method to improve the performance of single fibers, which can take into account the advantages of both to a certain extent. However, to achieve excellent wrinkle resistance, chemical finishing techniques are usually still required.

[0006] Currently, the mainstream anti-wrinkle finishing technologies for fabrics are mainly divided into two categories: resin finishing and silicone finishing. Traditional resin finishing (such as N-hydroxymethyl resins like DMDHEU) achieves excellent anti-wrinkle effects by cross-linking with the hydroxyl groups on cotton cellulose molecules. However, the finishing process involves the release of free formaldehyde, posing a threat to human health and the ecological environment, and has been gradually and strictly restricted. Although formaldehyde-free finishing agents such as polycarboxylic acids have been developed, they generally suffer from drawbacks such as high usage costs, easy yellowing and strength reduction in fabrics, and the need for harsh catalytic conditions such as high temperature and strong acid.

[0007] On the other hand, silicone finishing agents are widely used because they can impart excellent softness and smoothness to fabrics. CN111962199A discloses a double-sided functional fabric of yew and Tencel cotton and its preparation method. This fabric is made of a blend of yew fiber, Tencel, and cotton fiber. By adding yew fiber and performing antibacterial finishing, the antibacterial properties of the fabric are greatly improved; by adding Tencel, the comfort, toughness, and softness of the fabric are improved; by adding cotton fiber, the strength, rubbing fastness, and hydrophilicity of the fabric are improved; by silicone finishing, the dimensional stability, wrinkle resistance, water resistance, breathability, and rubbing resistance of the fabric are improved; and by organofluorine finishing, the water repellency, oil resistance, stain resistance, washability, heat resistance, and corrosion resistance of the fabric are improved.

[0008] However, conventional silicone finishing agents (such as amino silicone oil and hydroxyl silicone oil) mainly form a physical lubricating film on the fiber surface, providing limited wrinkle resistance and exhibiting weak adhesion to the fiber, resulting in unsustainable finishing effects and poor washability. Furthermore, existing finishing agents have relatively limited functionality, making it difficult to simultaneously meet the market's demand for multifunctional composites in clothing fabrics, including wrinkle resistance, softness, antistatic properties, and antibacterial properties.

[0009] Therefore, developing a novel finishing agent and its preparation method that is formaldehyde-free, causes minimal damage to fabrics, and simultaneously imparts excellent and durable wrinkle resistance, soft hand feel, and additional functions such as antistatic and antibacterial properties to fabrics has become an urgent technical problem to be solved in this field. Summary of the Invention

[0010] To address the shortcomings of existing technologies, the present invention aims to provide an anti-wrinkle clothing fabric and its preparation method. The anti-wrinkle clothing fabric of the present invention not only effectively resists wrinkles and easily restores its smoothness after wearing and washing, but also combines the softness and breathability of cotton with the crispness and durability of polyester. Its long-lasting antistatic and antibacterial functions make the fabric a combination of comfort, beauty, easy care, and health protection, with outstanding comprehensive performance.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A method for preparing an anti-wrinkle clothing fabric includes the following steps: blending cotton fibers and polyester fibers to make warp yarns and weft yarns respectively; spinning the warp yarns and weft yarns into a blended fabric; immersing the blended fabric in a finishing solution, performing two dips and two nips, baking, washing, and air drying to obtain the anti-wrinkle clothing fabric.

[0013] Preferably, the mass ratio of cotton fiber to polyester fiber in the warp yarn is 40-60:40-60, the mass ratio of cotton fiber to polyester fiber in the weft yarn is 60-80:20-40, the warp yarn count is 40S, the weft yarn count is 40S, the warp density of the fabric is 400-600 ends / 100cm, and the weft density is 300-360 ends / 10cm.

[0014] Preferably, the bath ratio during impregnation is 10-20:1, the impregnation temperature is 40-50℃, the impregnation time is 10-20 min, and the baking conditions include pre-baking at 70-90℃ for 5-15 min, followed by baking at 130-170℃ for 4-12 min.

[0015] Preferably, the finishing solution is prepared by the following method steps:

[0016] (1) L-cysteine ​​and photoinitiator were added to an ethanol / water mixed solvent and stirred to disperse evenly. Then, vinyl silicone oil was slowly added dropwise under a nitrogen atmosphere and reacted under ultraviolet irradiation. The product was then rotary evaporated to remove the solvent and obtain modified vinyl silicone oil.

[0017] Photo-initiated thiol-olefin addition reaction: Under ultraviolet light irradiation and the action of a photoinitiator, the thiol group (-SH) of L-cysteine ​​forms a sulfur radical (-S·), which attacks the carbon-carbon double bond with high electron cloud density on the side chain of vinyl silicone oil, forming a stable thioether bond (-S-). This process successfully grafts cysteine ​​structural units containing amino and carboxyl groups onto the polysiloxane backbone, yielding a multifunctional modified vinyl silicone oil.

[0018] Preferably, in step (1), the vinyl silicone oil is a side-chain vinyl silicone oil with a vinyl content of 0.4-1.2%.

[0019] Preferably, in step (1), the ratio of L-cysteine, photoinitiator, ethanol / water mixed solvent, and vinyl silicone oil is 0.2-0.4g: 0.05-0.2g: 50-80mL: 10g; and the volume ratio of ethanol to deionized water in the ethanol / water mixed solvent is 85-95: 5-15.

[0020] Preferably, in step (1), the ultraviolet irradiation reaction conditions are 25-40℃, irradiation under 365nm main wavelength ultraviolet light, and stirring reaction for 2-8h.

[0021] (2) Add modified vinyl silicone oil and triethylamine to DMF, stir to disperse evenly, then add trimethylchloromethylammonium chloride, heat to react under nitrogen atmosphere, cool the product, precipitate in excess acetone, filter, wash and dry to obtain finishing agent;

[0022] Nucleophilic substitution quaternization reaction: Using the nitrogen atom of the amino group (-NH2) in the first step product as the nucleophilic center, a nucleophilic attack is carried out on the methylene carbon bonded to chlorine in trimethylchloromethylammonium chloride. The byproduct hydrogen chloride generated in the process is immediately neutralized by the triethylamine acid-binding agent, and a quaternary ammonium salt functional group with a permanent positive charge is successfully constructed on the silicone oil side chain.

[0023] Preferably, in step (2), the ratio of modified vinyl silicone oil, triethylamine, DMF, and trimethylchloromethylammonium chloride is 10g: 0.21-0.42g: 40-80mL: 0.35-1.4g.

[0024] Preferably, in step (2), the heating reaction conditions are 50-80°C for 6-24 hours.

[0025] (3) Dilute the finishing agent with deionized water under high-speed stirring, adjust the pH, and obtain the finishing solution.

[0026] Preferably, in step (3), the mass ratio of the finishing agent to deionized water is 1:10-20, and the pH of the system is adjusted to 5-6.

[0027] The present invention also claims protection for an anti-wrinkle clothing fabric prepared by the aforementioned preparation method.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. This invention provides a wrinkle-resistant clothing fabric. Through a cotton / polyester blend, a fabric skeleton with excellent resilience is constructed. Combined with an efficient two-dip, two-nip, and segmented temperature-controlled baking process, the finishing agent is ensured to penetrate evenly and cross-link firmly into the fibers. The clothing fabric prepared by this method not only has excellent wrinkle resistance and shape retention, but also combines the skin-friendly breathability of cotton with the crispness and durability of polyester, achieving an organic unity of function and comfort.

[0030] 2. This invention provides a finishing agent. First, its flexible organosilicon backbone serves as the core framework, imparting a soft, smooth, and excellent hand feel to the fabric while also providing basic elastic recovery. Furthermore, after finishing, it forms a porous film on the fiber surface, maintaining good breathability. Second, the carboxyl functional groups introduced through L-cysteine ​​undergo esterification with the hydroxyl groups on the cotton fiber surface at high temperatures during the baking process, forming a stable covalent cross-linked network. This network endows the fabric with excellent shape memory capabilities, providing effective resilience when wrinkled by external pressure, allowing the fibers to return to their initial state, thus achieving excellent wrinkle resistance. Finally, the quaternary ammonium salt groups introduced through chemical grafting effectively adsorb and destroy negatively charged bacterial cell membranes, giving the fabric broad-spectrum antibacterial properties. This robust chemical grafting structure ensures excellent washability and durability of its antibacterial and antistatic functions. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. Of course, the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention.

[0032] Unless otherwise specified, all chemical reagents and materials in this invention are purchased from the market or synthesized from raw materials purchased from the market.

[0033] The vinyl silicone oil is a side-chain vinyl silicone oil with a vinyl content of 0.4-1.2%, purchased from Shenzhen Jipeng Silicon Fluorine Materials Co., Ltd.

[0034] A method for preparing a wrinkle-resistant clothing fabric includes the following steps:

[0035] (1) Add 0.2-0.4g L-cysteine ​​and 0.05-0.2g photoinitiator to 50-80mL of ethanol / water mixed solvent (the volume ratio of ethanol to deionized water is 85-95:5-15), stir to disperse evenly, and then slowly add 10g vinyl silicone oil dropwise under a nitrogen atmosphere. Irradiate and react for 2-8h at 25-40℃ and 365nm main wavelength ultraviolet light. Remove the solvent by rotary evaporation to obtain modified vinyl silicone oil.

[0036] (2) Add 10g of modified vinyl silicone oil and 0.21-0.42g of triethylamine to 40-80mL of DMF, stir to disperse evenly, then add 0.35-1.4g of trimethylchloromethylammonium chloride, heat and react at 50-80℃ under nitrogen atmosphere for 6-24h, cool the product, precipitate it in excess acetone, filter, wash and dry to obtain the finishing agent;

[0037] (3) Dilute 1g of finishing agent with 10-20g of deionized water under high-speed stirring, adjust the pH to 5-6, and obtain finishing solution;

[0038] (4) Cotton fiber and polyester fiber are blended and made into warp and weft yarns respectively. The mass ratio of cotton fiber to polyester fiber in the warp yarn is 40-60:40-60, and the mass ratio of cotton fiber to polyester fiber in the weft yarn is 60-80:20-40. The warp and weft yarns are spun into a blended fabric with a warp count of 40S and a weft count of 40S. The warp density of the fabric is 400-600 ends / 100cm, and the weft density is 300-360 ends / 10cm. The blended fabric is immersed in a finishing solution, dipped and rubbed twice. The bath ratio during immersion is 10-20:1, the immersion temperature is 40-50℃, and the immersion time is 10-20min. It is pre-dried at 70-90℃ for 5-15min, and then baked at 130-170℃ for 4-12min. After washing and air drying, the wrinkle-resistant clothing fabric is obtained.

[0039] The present invention will be further described below through specific embodiments.

[0040] Example 1

[0041] A method for preparing a wrinkle-resistant clothing fabric includes the following steps:

[0042] (1) 0.4 g L-cysteine ​​and 0.2 g photoinitiator 2,2-dimethoxy-2-phenylacetophenone were added to 70 mL of ethanol / water mixed solvent (ethanol and deionized water volume ratio of 90:10), stirred to disperse evenly, and then 10 g vinyl silicone oil was slowly added dropwise under nitrogen atmosphere. The mixture was irradiated at 40 °C and under 365 nm main wavelength ultraviolet light and stirred for 2 h. The solvent was removed by rotary evaporation of the product to obtain modified vinyl silicone oil.

[0043] (2) Add 10g of modified vinyl silicone oil and 0.42g of triethylamine to 60mL of DMF, stir to disperse evenly, then add 1.4g of trimethylchloromethylammonium chloride, heat and react at 80°C under nitrogen atmosphere for 6h, cool the product, precipitate it in excess acetone, filter, wash and dry to obtain the finishing agent;

[0044] (3) Dilute 1g of finishing agent with 15g of deionized water under high-speed stirring, adjust the pH to 5.5, and obtain the finishing solution;

[0045] (4) Cotton fiber and polyester fiber are blended and made into warp and weft yarns respectively. The mass ratio of cotton fiber to polyester fiber in the warp yarn is 60:40, and the mass ratio of cotton fiber to polyester fiber in the weft yarn is 80:20. The warp and weft yarns are spun into a blended fabric with a warp count of 40S and a weft count of 40S. The warp density of the fabric is 500 ends / 100cm and the weft density is 320 ends / 10cm. The blended fabric is immersed in a finishing solution, dipped and rubbed twice. The bath ratio during immersion is 15:1, the immersion temperature is 45℃, and the immersion time is 15min. It is pre-dried at 80℃ for 10min, then baked at 150℃ for 8min, washed with water, and air-dried to obtain the wrinkle-resistant clothing fabric.

[0046] Example 2

[0047] A method for preparing a wrinkle-resistant clothing fabric includes the following steps:

[0048] (1) 0.3g L-cysteine ​​and 0.15g photoinitiator 2,2-dimethoxy-2-phenylacetophenone were added to 70mL of ethanol / water mixed solvent (ethanol and deionized water volume ratio of 90:10), stirred to disperse evenly, and then 10g vinyl silicone oil was slowly added dropwise under nitrogen atmosphere. The mixture was irradiated at 35℃ and under 365nm main wavelength ultraviolet light and stirred for 2-8h. The solvent was removed by rotary evaporation of the product to obtain modified vinyl silicone oil.

[0049] (2) Add 10g of modified vinyl silicone oil and 0.35g of triethylamine to 60mL of DMF, stir to disperse evenly, then add 1.05g of trimethylchloromethylammonium chloride, heat and react at 70°C under nitrogen atmosphere for 12h, cool the product, precipitate it in excess acetone, filter, wash and dry to obtain the finishing agent;

[0050] (3) Dilute 1g of finishing agent with 15g of deionized water under high-speed stirring, adjust the pH to 5.5, and obtain the finishing solution;

[0051] (4) Cotton fiber and polyester fiber are blended and made into warp and weft yarns respectively. The mass ratio of cotton fiber to polyester fiber in the warp yarn is 60:40, and the mass ratio of cotton fiber to polyester fiber in the weft yarn is 80:20. The warp and weft yarns are spun into a blended fabric with a warp count of 40S and a weft count of 40S. The warp density of the fabric is 500 ends / 100cm and the weft density is 320 ends / 10cm. The blended fabric is immersed in a finishing solution, dipped and rubbed twice. The bath ratio during immersion is 15:1, the immersion temperature is 45℃, and the immersion time is 15min. It is pre-dried at 80℃ for 10min, then baked at 150℃ for 8min, washed with water, and air-dried to obtain the wrinkle-resistant clothing fabric.

[0052] Example 3

[0053] A method for preparing a wrinkle-resistant clothing fabric includes the following steps:

[0054] (1) 0.3g L-cysteine ​​and 0.1g photoinitiator 2,2-dimethoxy-2-phenylacetophenone were added to 70mL of ethanol / water mixed solvent (ethanol and deionized water volume ratio of 90:10), stirred to disperse evenly, and then 10g vinyl silicone oil was slowly added dropwise under nitrogen atmosphere. The mixture was irradiated at 30℃ and under 365nm main wavelength ultraviolet light and stirred for 6h. The solvent was removed by rotary evaporation of the product to obtain modified vinyl silicone oil.

[0055] (2) Add 10g of modified vinyl silicone oil and 0.28g of triethylamine to 60mL of DMF, stir to disperse evenly, then add 0.7g of trimethylchloromethylammonium chloride, heat and react at 60°C under nitrogen atmosphere for 18h, cool the product, precipitate it in excess acetone, filter, wash and dry to obtain the finishing agent.

[0056] (3) Dilute 1g of finishing agent with 15g of deionized water under high-speed stirring, adjust the pH to 5.5, and obtain the finishing solution;

[0057] (4) Cotton fiber and polyester fiber are blended and made into warp and weft yarns respectively. The mass ratio of cotton fiber to polyester fiber in the warp yarn is 60:40, and the mass ratio of cotton fiber to polyester fiber in the weft yarn is 80:20. The warp and weft yarns are spun into a blended fabric with a warp count of 40S and a weft count of 40S. The warp density of the fabric is 500 ends / 100cm and the weft density is 320 ends / 10cm. The blended fabric is immersed in a finishing solution, dipped and rubbed twice. The bath ratio during immersion is 15:1, the immersion temperature is 45℃, and the immersion time is 15min. It is pre-dried at 80℃ for 10min, then baked at 150℃ for 8min, washed with water, and air-dried to obtain the wrinkle-resistant clothing fabric.

[0058] Example 4

[0059] A method for preparing a wrinkle-resistant clothing fabric includes the following steps:

[0060] (1) 0.2g L-cysteine ​​and 0.05g photoinitiator 2,2-dimethoxy-2-phenylacetophenone were added to 70mL of ethanol / water mixed solvent (ethanol and deionized water volume ratio of 90:10), stirred to disperse evenly, and then 10g vinyl silicone oil was slowly added dropwise under nitrogen atmosphere. The mixture was irradiated and stirred for 8h under 25℃ and 365nm main wavelength ultraviolet light. The solvent was removed by rotary evaporation of the product to obtain modified vinyl silicone oil.

[0061] (2) Add 10g of modified vinyl silicone oil and 0.21g of triethylamine to 60mL of DMF, stir to disperse evenly, then add 0.35g of trimethylchloromethylammonium chloride, heat and react at 50°C under nitrogen atmosphere for 24h, cool the product, precipitate it in excess acetone, filter, wash and dry to obtain the finishing agent;

[0062] (3) Dilute 1g of finishing agent with 15g of deionized water under high-speed stirring, adjust the pH to 5.5, and obtain the finishing solution;

[0063] (4) Cotton fiber and polyester fiber are blended and made into warp and weft yarns respectively. The mass ratio of cotton fiber to polyester fiber in the warp yarn is 60:40, and the mass ratio of cotton fiber to polyester fiber in the weft yarn is 80:20. The warp and weft yarns are spun into a blended fabric with a warp count of 40S and a weft count of 40S. The warp density of the fabric is 500 ends / 100cm and the weft density is 320 ends / 10cm. The blended fabric is immersed in a finishing solution, dipped and rubbed twice. The bath ratio during immersion is 15:1, the immersion temperature is 45℃, and the immersion time is 15min. It is pre-dried at 80℃ for 10min, then baked at 150℃ for 8min, washed with water, and air-dried to obtain the wrinkle-resistant clothing fabric.

[0064] Comparative Example 1

[0065] A method for preparing a wrinkle-resistant clothing fabric includes the following steps:

[0066] (1) 0.4 g L-cysteine ​​and 0.2 g photoinitiator 2,2-dimethoxy-2-phenylacetophenone were added to 70 mL of ethanol / water mixed solvent (ethanol and deionized water volume ratio of 90:10), stirred to disperse evenly, and then 10 g vinyl silicone oil was slowly added dropwise under nitrogen atmosphere. The mixture was irradiated at 40 °C and under 365 nm main wavelength ultraviolet light and stirred for 2 h. The solvent was removed by rotary evaporation of the product to obtain modified vinyl silicone oil.

[0067] (2) 0.88g of modified vinyl silicone oil and 0.12g of trimethylchloromethylammonium chloride were diluted with 15g of deionized water under high-speed stirring, and the pH was adjusted to 5.5 to obtain the finishing solution;

[0068] (3) Cotton fiber and polyester fiber are blended and made into warp and weft yarns respectively. The mass ratio of cotton fiber to polyester fiber in the warp yarn is 60:40, and the mass ratio of cotton fiber to polyester fiber in the weft yarn is 80:20. The warp and weft yarns are spun into a blended fabric with a warp count of 40S and a weft count of 40S. The warp density of the fabric is 500 ends / 100cm and the weft density is 320 ends / 10cm. The blended fabric is immersed in a finishing solution, dipped and rubbed twice. The bath ratio during immersion is 15:1, the immersion temperature is 45℃, the immersion time is 15min, pre-drying at 80℃ for 10min, then baking at 150℃ for 8min, washing with water, and air drying to obtain the wrinkle-resistant clothing fabric.

[0069] Comparative Example 2

[0070] A method for preparing a wrinkle-resistant clothing fabric includes the following steps:

[0071] (1) Dilute 1 vinyl silicone oil with 15g deionized water under high-speed stirring, adjust the pH to 5.5, and obtain the finishing solution;

[0072] (2) Cotton fiber and polyester fiber are blended and made into warp and weft yarns respectively. The mass ratio of cotton fiber to polyester fiber in the warp yarn is 60:40, and the mass ratio of cotton fiber to polyester fiber in the weft yarn is 80:20. The warp and weft yarns are spun into a blended fabric with a warp count of 40S and a weft count of 40S. The warp density of the fabric is 500 ends / 100cm and the weft density is 320 ends / 10cm. The blended fabric is immersed in a finishing solution, dipped and rubbed twice. The bath ratio during immersion is 15:1, the immersion temperature is 45℃, and the immersion time is 15min. It is pre-dried at 80℃ for 10min, then baked at 150℃ for 8min, washed with water, and air-dried to obtain the wrinkle-resistant clothing fabric.

[0073] The fabrics prepared in Examples 1-4 and Comparative Examples 1-2 were subjected to performance tests. Antimicrobial properties were determined according to GB / T 20944.3-2008 "Evaluation of Antimicrobial Properties of Textiles - Part 3: Shaking Method". The test bacteria were Gram-negative bacteria - *Escherichia coli* (AATCC 29522) and fungi - *Candida albicans* (ATCC 10231). The prepared fabrics were placed in a 5g / L standard detergent aqueous solution at a bath ratio of 1g:40mL at 40℃ and washed in a household washing machine for 10 minutes per wash. The fabrics were then dried in an oven at 80℃ for a total of 50 washes. The antimicrobial properties of the fabrics after 50 washes were tested according to GB / T 20944.3-2008. Specific data are shown in Table 1.

[0074] Table 1. Test results of antibacterial properties of the fabric

[0075]

[0076] The fabric wrinkle recovery angle is expressed as the sum of the longitudinal wrinkle recovery angle and the transverse wrinkle recovery angle. The larger the value, the less likely the garment is to wrinkle during wear, and the better its appearance. The fabric prepared according to this invention was tested for wrinkle resistance using a YG(B)541E fabric wrinkle elasticity tester (Wenzhou Darong Textile Instrument Co., Ltd.), referring to GB / T3819-1997 "Textiles - Determination of Crease Recovery Property - Method of Recovery Angle". The sample dimensions are 20×15mm for the recovery wings and 20×40mm for the fixed wings, with a convex shape. Five samples are prepared longitudinally and five transversely. The samples are equilibrated for 24 hours under constant temperature and humidity conditions. Then, the testing software is opened, the test method is set to the vertical method, and the instrument is started. The instrument will automatically complete one revolution. After rotation, the fixed wings of the sample are installed on the holder, the recovery wings are folded, and the pressure plate is closed. The remaining samples are installed in the same way. After all samples are installed, the instrument will automatically start the experiment. When the sample is subjected to pressure for 5 minutes, the instrument will automatically remove the weight. After the sample is unloaded for 5 minutes, the instrument will automatically measure the crease recovery angle. The experimental result is the average of the five samples. The air permeability of the fabric is tested according to GB / T 5453-1997 "Determination of Air Permeability of Textiles". See Table 2 for details.

[0077] Table 2. Test results of fabric wrinkle resistance and breathability.

[0078]

[0079] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for preparing a wrinkle-resistant clothing fabric, characterized in that, The process includes the following steps: blending cotton and polyester fibers to form warp and weft yarns respectively; spinning the warp and weft yarns into a blended fabric; immersing the blended fabric in a finishing solution; performing two dips and two nips; baking; washing; and air drying to obtain the wrinkle-resistant clothing fabric.

2. The preparation method according to claim 1, characterized in that, The finishing solution is prepared by the following steps: (1) Add L-cysteine ​​and photoinitiator to an ethanol / water mixed solvent, stir to disperse evenly, then slowly add vinyl silicone oil dropwise under a nitrogen atmosphere, react under ultraviolet irradiation, remove the solvent by rotary evaporation of the product to obtain modified vinyl silicone oil; (2) Add modified vinyl silicone oil and triethylamine to DMF, stir to disperse evenly, then add trimethylchloromethylammonium chloride, heat to react under nitrogen atmosphere, cool the product, precipitate in excess acetone, filter, wash and dry to obtain finishing agent; (3) Dilute the finishing agent with deionized water under high-speed stirring, adjust the pH, and obtain the finishing solution.

3. The preparation method according to claim 2, characterized in that, In step (1), the vinyl silicone oil is a side-chain vinyl silicone oil with a vinyl content of 0.4~1.2%.

4. The preparation method according to claim 2, characterized in that, In step (1), the ratio of L-cysteine, photoinitiator, ethanol / water mixed solvent, and vinyl silicone oil is 0.2~0.4g:0.05~0.2g:50~80mL:10g; the volume ratio of ethanol and deionized water in the ethanol / water mixed solvent is 85~95:5~15.

5. The preparation method according to claim 2, characterized in that, In step (1), the ultraviolet irradiation reaction conditions are 25~40℃, irradiation under 365nm main wavelength ultraviolet light, and stirring reaction for 2~8h.

6. The preparation method according to claim 2, characterized in that, In step (2), the ratio of modified vinyl silicone oil, triethylamine, DMF and trimethylchloromethylammonium chloride is 10g: 0.21~0.42g: 40~80mL: 0.35~1.4g.

7. The preparation method according to claim 2, characterized in that, In step (2), the heating reaction conditions are 50~80℃ for 6~24h.

8. The preparation method according to claim 2, characterized in that, In step (3), the mass ratio of finishing agent to deionized water is 1:10~20, and the pH of the system is adjusted to 5~6.

9. The preparation method according to claim 1, characterized in that, The bath ratio for immersion is 10~20:1, the immersion temperature is 40~50℃, the immersion time is 10~20min, and the baking conditions include pre-baking at 70~90℃ for 5~15min, followed by baking at 130~170℃ for 4~12min.

10. A wrinkle-resistant garment fabric prepared by the preparation method according to any one of claims 1 to 9.

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