A sun-proof and UV-resistant casual sun-proof clothing fabric and a preparation method thereof

Abstract

The present application relates to the field of worsted fabrics, and specifically discloses a sun-proof, UV-resistant and moisture-absorbing and perspiration-relieving casual sun-protective clothing fabric and a preparation method thereof, including a fabric base material, wherein the fabric base material is made by interweaving warp and weft, the warp is a single-hole nylon filament, and the weft is a wool-polyester sarafan stretch yarn, which is made by blending wool fiber and polyester fiber and then sarafan spinning with spandex-polyester coated yarn to form a wool-polyester sarafan stretch yarn; the preparation method thereof includes the following steps: S1, using single-hole nylon filament as the warp and using wool-polyester sarafan stretch yarn as the weft to interweave to obtain a fabric base material; S2, firstly immersing the fabric base material in a waterproof treatment liquid, drying it, and then immersing it in an anti-ultraviolet finishing liquid, and drying it to obtain a sun-protective clothing fabric. The present application has the characteristics of solving the problem that existing fabrics are easy to stick to the body and sweat in hot and humid environments, and improving the comfort and aesthetics of wearing.

Description

Technical Field

[0001] The present application relates to the field of fine spinning, and more specifically, to a sun-proof and UV-resistant casual sun-protective clothing fabric and a preparation method thereof. Background Art

[0002] With the improvement of people's living standards and the enhancement of health awareness, sun protection clothing has become an essential equipment for daily outdoor activities, and its market demand continues to grow. Traditional sun protection fabrics are mainly made of pure chemical fiber materials, such as polyester fibers. Although these materials have a certain sun protection effect, they are insufficient in terms of moisture absorption and perspiration, comfort, and durability. Especially in the high temperature and high humidity environment in summer, chemical fiber fabrics are prone to sweat accumulation, making the clothes stick to the skin, which not only affects the comfort and aesthetics of wearing, but also may cause the body to feel stuffy and even cause skin problems because the sweat cannot be discharged in time.

[0003] To address the above problems, a casual sun protection clothing fabric that combines UV resistance with moisture absorption and perspiration has been developed, which can significantly improve the wearing comfort and aesthetics, solve the problem of existing fabrics being sticky and causing sweat in hot and humid environments, and meet consumers' pursuit of high-quality life. Summary of the invention

[0004] In order to solve the problem that existing fabrics are easy to stick to the body and cause sweat in hot and humid environments, and to improve the comfort and aesthetics of wearing, the present application provides a casual sun-protective clothing fabric that is sun-proof and UV-resistant while absorbing moisture and wicking sweat, and a preparation method thereof.

[0005] In the first aspect, the present application provides a sun-proof and UV-resistant casual sun-protective clothing fabric that absorbs moisture and wicks perspiration, using the following technical solution: A sun-proof and UV-resistant casual sun-protective clothing fabric, comprising a fabric base material, wherein the fabric base material is made by interweaving warp threads and weft threads, wherein the warp threads are single-hole nylon filaments, and the weft threads are wool-polyester sarafan stretch yarns, wherein the wool-polyester sarafan stretch yarns are made by blending wool fibers and polyester fibers and then sarafan spinning them with spandex-polyester coated yarns.

[0006] By adopting the above technical scheme, the warp of the sun-proof clothing fabric in this application is single-hole nylon filament. The use of single-hole filament makes the fabric thinner, more breathable and hazy. More importantly, nylon has good wear resistance, resilience, wrinkle resistance and certain elasticity. There is a channel inside the fiber of single-hole nylon filament, which helps to improve the air permeability and moisture absorption of the fabric, and nylon provides basic strength and stability; the weft is made of wool fiber and polyester blended and then spun with spandex coated yarn for serofil spinning, wherein the wool fiber provides natural softness, warmth retention and moisture absorption, while the polyester fiber increases the wear resistance, wrinkle resistance and glossiness of the fabric, and the spandex is the core yarn and the polyester is the outer layer, which can provide excellent elasticity. Finally, it combines the softness and comfort of wool with the strength, gloss, durability and elasticity of polyester and spandex, and has high strength and durability while maintaining the softness and comfort of wool, and at the same time has good elasticity.

[0007] More importantly, both nylon and polyester in this application have certain anti-ultraviolet ability, which can block some ultraviolet rays, and wool fiber itself also has certain sun protection function, and wool fiber has natural hygroscopicity and air permeability, which can quickly absorb and remove sweat, and polyester fiber has good moisture conductivity, which is conducive to the diffusion and evaporation of sweat inside the fabric, and wool fiber is densely covered with holes inside, while the outer layer is not hydrophilic. Therefore, sweat can be quickly absorbed by the holes inside the fiber, and has excellent hygroscopicity. When the amount of sweat exceeds the water absorption capacity of wool, the excess sweat will be discharged through the gaps between the fibers, thereby avoiding the problem of clothes sticking to the body after exercise, keeping the body and clothes dry, and providing a comfortable wearing experience; and there are many natural tiny curls on the wool fibers, which are intertwined to form a small and narrow space, which can discharge water vapor and lock air convection, so that the wool fiber sun-proof clothing in this application is cool to wear in summer and has a cooling effect. Finally, the fabric prepared in this application is not only sun-proof and UV-resistant, but also has the functions of moisture absorption and perspiration, and is suitable for making casual sun-proof clothing. Moreover, the sun-proof clothing in this application will not stick to the body after exercise, and it feels cool and silky to wear and has a cooling effect. Moreover, it uses a mixture of wool, polyester and spandex, and has a lower cost.

[0008] Optionally, the single-hole nylon filament is 20D / 1 single-hole nylon filament, and the wool fiber and the polyester fiber are blended in a ratio of 65:35, and the spandex-polyester coated yarn is made of 30D spandex as the core yarn and 30D polyester as the coating yarn.

[0009] By adopting the above technical solutions, the nylon warp provides strength and stability, while the wool-polyester serofil stretch yarn weft gives the fabric good elasticity, comfort and functionality. The blending of wool and polyester enhances the fabric's moisture absorption and breathability, while the addition of spandex makes the fabric fit the body better and improves perspiration performance. Overall, the fabric not only has excellent sun protection and perspiration performance, but also has good wear resistance and wrinkle resistance, making it very suitable for making high-quality casual sun protection clothing.

[0010] Optionally, the fabric substrate is firstly padded in a waterproof treatment liquid and then padded in an anti-ultraviolet finishing liquid, and the anti-ultraviolet finishing liquid comprises the following raw materials in parts by weight: 5-10 parts of hydroxypropyl beta-cyclodextrin, 3-8 parts of polyvinyl pyrrolidone, 15-25 parts of nano titanium dioxide, 5-10 parts of benzophenone ultraviolet absorber, 3-5 parts of phosphonic acid monoester nickel type light stabilizer, 3-8 parts of carbon nanotubes and 60-80 parts of water.

[0011] By adopting the above technical scheme, nano titanium dioxide is used as a UV shielding agent in the anti-ultraviolet finishing liquid of the present application, which reduces its penetration into the fabric by reflecting or scattering ultraviolet rays, and the ultraviolet absorber absorbs ultraviolet rays and converts them into harmless heat energy, and a phosphonic acid monoester nickel-type light stabilizer is added to absorb the ultraviolet light that is not shielded or absorbed and return it to a low-energy state, thereby playing a good anti-ultraviolet effect. The addition of carbon nanotubes in the present application, on the one hand, utilizes its pore structure to maintain the air permeability of the sunscreen clothing, and on the other hand, more importantly, utilizes its carbon tube path to allow the outside world to pass through the tube multiple times. Refraction plays a role in ultraviolet absorption, and the hydroxypropyl β-cyclodextrin in the present application has an internal hydrophobic cavity and a hydrophilic exterior, so that the ultraviolet absorber and the light stabilizer can be wrapped to a certain extent, the compatibility with the system can be improved, and it is helpful to combine the anti-ultraviolet layer with the waterproof layer. The polar groups of the carbonyl and nitrogen atoms in the polyvinyl pyrrolidone can also improve the uniform dispersion of the system to form a stable finishing agent solution. When the fabric substrate is impregnated, the wettability between the finishing liquid and the fiber can be improved, and the anti-ultraviolet absorption finishing liquid can be promoted to better penetrate into the fiber, thereby improving the adhesion between the finishing liquid and the fiber.

[0012] Optionally, the raw materials of the anti-ultraviolet finishing liquid also include 5-8 parts of nano silicon dioxide.

[0013] By adopting the above technical solution, the addition of nano-silica can maintain its air permeability on the one hand, and on the other hand, it can enter the fiber pores or the pore structure of the waterproof layer through mechanical embedding, thereby increasing the physical connection points between the anti-ultraviolet finishing liquid and the fiber and improving the adhesion.

[0014] Optionally, the anti-ultraviolet absorber is 4-propyleneoxy-2-hydroxybenzophenone.

[0015] Optionally, the anti-ultraviolet finishing liquid is prepared by the following method: After polyvinyl pyrrolidone and part of water are mixed, nano titanium dioxide and carbon nanotubes are added, and mixed solution A is prepared after ultrasonic dispersion; The benzophenone type ultraviolet absorber, the phosphonic acid monoester nickel type light stabilizer and the remaining water are mixed, and then hydroxypropyl beta-cyclodextrin is added to prepare a mixed solution B, and then the mixed solution A is mixed with the mixed solution B to prepare an anti-ultraviolet finishing solution.

[0016] By adopting the above technical solution, the anti-ultraviolet finishing liquid obtained by the above solution has better uniformity, is more conducive to the subsequent loading and distribution of the fabric substrate, and ultimately has better anti-ultraviolet aging performance.

[0017] Optionally, the waterproof treatment liquid includes the following raw materials in parts by weight: 2-4 parts hydrocarbon polymer waterproofing agent, 1-3 parts ethylene glycol dimethacrylate, 0.5-1.5 parts penetrant, 0.05-0.1 parts initiator, 0.8-1.5 parts versatate vinyl carbonate, 0.3-0.5 parts amino silicone oil, 0.8-1.3 parts amino modified nanoparticles and 0.1-0.3 parts of genipin and 8-10 parts of water.

[0018] By adopting the above technical scheme, the waterproof treatment in the present application adopts fluorine-free waterproof treatment, wherein a hydrocarbon polymer waterproofing agent is added, which can give the fabric a long-lasting waterproof function, form a thin film on the surface of the fabric, prevent moisture from penetrating into the interior of the fabric, thereby protecting the fabric substrate and slowing down the influence of moisture and reducing the shrinkage rate of washing. In addition, tert-butyl carbonate and ethylene glycol dimethacrylate are also added in the present application. Ethylene glycol dimethacrylate forms a chemical bond with the fabric fiber as a cross-linking agent, and the unsaturated double bonds between ethylene glycol dimethacrylate and tert-butyl carbonate form a chemical reaction, so that on the one hand, the binding force between the fibers is enhanced, and on the other hand, its tertiary carbon group forms a great steric hindrance relationship, which significantly improves its washing resistance. The addition of a penetrant can improve the permeability of the waterproof treatment liquid in the fabric fiber, so that the waterproofing agent can be more evenly distributed to form a more stable waterproof layer, and amino silicone oil as a softener can improve the feel and softness of the fabric, and more importantly, it can reduce the friction and entanglement between the fibers, so that the shrinkage rate during washing can be reduced, and the addition of modified nanoparticles can fill the gaps between the fabric fibers, enhance the dimensional stability of the fabric, and improve its waterproofness.

[0019] In addition, the nylon fabric base material of the present application has functional groups such as amide groups, while spandex has functional groups such as isocyanate and ester bonds. Under the action of genipin, substances such as amino silicone oil and amino-modified nanoparticles can form cross-linking effects with the fiber base material. This can further make the arrangement of the fabric fibers more compact through cross-linking, which helps to reduce the shrinkage rate during washing. Ultimately, the waterproof fabric in the present application has a lower shrinkage rate during washing.

[0020] Optionally, the waterproof treatment liquid is prepared by the following method: After mixing versatate, ethylene glycol dimethacrylate, penetrant, amino-modified nanoparticles and water, heating to 60-80°C, adding hydrocarbon polymer waterproofing agent, initiator, amino silicone oil and genipin, stirring and cooling to obtain a waterproofing treatment liquid.

[0021] By adopting the above technical scheme, the introduction of amino groups after amino modification of the nanoparticles in the waterproof layer in the present application can form stable chemical bonds with the hydroxyl groups rich in nano-silicon dioxide, nano-titanium dioxide and carbon nanotubes in the anti-ultraviolet layer, thereby improving the chemical bonding between the anti-ultraviolet layer and the waterproof layer, and further improving the bonding between the anti-ultraviolet layer and the fabric substrate.

[0022] Optionally, the amino-modified nanoparticles are prepared by mixing nano-graphene oxide and nano-silicon dioxide in a mass ratio of 1:(0.3-0.4) and then subjecting them to amination modification.

[0023] By adopting the above technical scheme, the graphene oxide in the present application has a unique two-dimensional sheet structure and rich oxygen-containing functional groups such as carboxyl and hydroxyl groups. The two-dimensional sheet structure can form a dense barrier to effectively block water penetration, and the oxygen-containing hanging energy groups can form a tight bond with the fabric fibers to improve the moisture barrier ability. The barrier effect formed by it can reduce the shrinkage and deformation of the fabric during washing, and its particle filling further reduces the shrinkage and deformation of the fiber, thereby ultimately reducing the washing shrinkage performance of the jacket fabric.

[0024] Optionally, the nano-graphene oxide has a particle size of 40-80 nm. The nano silicon dioxide is selected from nano silicon dioxide with a particle size of 5-10nm, a particle size of 20-30nm and a particle size of 45-60nm in a mass ratio of 1: (0.2-0.3): (0.4-0.6).

[0025] By adopting the above technical scheme, in the present application, nano-graphene oxide and nano-silicon dioxide of different particle sizes are combined, especially nano-silicon dioxide of different particle sizes are selected for combination, so that the gaps in the graphene oxide sheets will be filled with nano-silicon dioxide, which has a better waterproof effect, and compared with the continuous level distribution, the distribution method in the present application can not only better fill between the fabric fibers, but also help reduce the deformation and shrinkage of the fabric during washing, and the multi-level distribution can better adapt to the deformation during the washing process, thereby further reducing the shrinkage rate. Finally, the fabric of the present application has a lower washing shrinkage rate and better air permeability.

[0026] Optionally, the amino-modified nanoparticles are prepared by the following method: first, nano-graphene oxide is dispersed in water and mixed, then aminosilane and N-hydroxymethyl stearamide are added, and then nano-silica is added, and then PAMAM and allylglycine are added for amination modification, and then filtered and dried to obtain amino-modified nanoparticles.

[0027] By adopting the above technical scheme, in the present application, nano-graphene oxide is first mixed with aminosilane to form amino-modified nano-graphene oxide, and then nano-silicon dioxide is added to carry out a second amination reaction, and the distributed amination helps to improve the amination modification effect of both nano-graphene oxide and nano-silicon dioxide, while avoiding agglomeration in the process, and in the present application, aminosilane and N-hydroxymethyl stearamide are firstly amination-modified, and the surface hydrophobicity of the graphene oxide is enhanced after aminosilane modification, which helps to improve its water resistance and can also enhance the interfacial bonding performance between the fiber and the modified nanoparticles, so that the shrinkage or deformation of the fabric during the washing process can be reduced, and N-hydroxymethyl stearamide as a hydroxymethyl waterproofing agent can not only be used as The fiber softener can also be used as a waterproofing agent to further reduce the shrinkage after washing. PAMAM and allyl glycine are added after nano-silica. The addition of PAMAM dendritic macromolecules not only helps to introduce amino groups to improve the binding with the fiber, thereby reducing shedding and reducing the shrinkage after washing, but also helps to improve the dispersibility and stabilizer of nanoparticles in the waterproofing agent, thereby helping to improve the subsequent uniformity of the distribution of the fabric. The introduction of unsaturated functional groups in allyl amino acids can form chemical bonds with tert-butyl vinyl carbonate in the waterproof finishing liquid, so that the final waterproof finishing liquid can form a tighter waterproof film, which not only improves the waterproofness, but also has a certain fixed limiting effect on the fiber, thereby better reducing the waterproof shrinkage performance.

[0028] Optionally, during the preparation of amino-modified nanoparticles, the raw materials are added according to the following weight parts: 10-20 parts of nano-graphene oxide, 30-40 parts of water, 3-5 parts of aminosilane, 1-3 parts of N-hydroxymethyl stearamide, 0.5-1 parts of PAMAM and 0.8-1.5 parts of allyl glycine.

[0029] Optionally, the fabric substrate is immersed in the anti-ultraviolet finishing liquid for rolling treatment. The specific operation is as follows: after diluting the anti-ultraviolet finishing liquid by 4-5 times of mass, heating it to 85-95°C and adding the fabric substrate into the anti-ultraviolet finishing liquid for immersion and rolling. The immersion temperature is 160-180°C, the rolling speed is 12-15m / min, the rolling temperature is 90-120°C, and after two immersion and two rolling treatments, the fabric is dried to obtain sun-proof clothing fabric.

[0030] In a second aspect, the present application provides a method for preparing a sun-proof and UV-resistant casual sun-protective clothing fabric, which adopts the following technical solution: A method for preparing a sun-proof and UV-resistant casual sun-protective clothing fabric comprising the following steps: S1. Using single-hole nylon filament as warp and wool-polyester cerofoil stretch yarn as weft to interweave and prepare a fabric base material; S2. The fabric base material is firstly treated by padding in a waterproof treatment liquid and then dried, and then the base material is treated by padding in an anti-ultraviolet finishing liquid and dried to obtain a sun-proof clothing fabric.

[0031] By adopting the above technical solution, the method provided by the present application is simple, convenient and easy to realize industrialization.

[0032] Optionally, the specific operations in step S2 are: First, the waterproof treatment liquid is diluted by 8-10 times by weight and then added to the fabric base material prepared in step S1 for padding treatment, the immersion temperature is 175-190° C., the rolling speed is 10-20 m / min, the rolling temperature is 100-110° C., and the primary fabric is obtained after drying; After diluting the anti-ultraviolet finishing liquid by 4-5 times of mass, heating to 85-95°C, adding the primary fabric into the anti-ultraviolet finishing liquid for dipping and rolling, the dipping temperature is 160-180°C, the rolling speed is 12-15m / min, the rolling temperature is 90-120°C, and after double dipping and double rolling treatment, drying is performed to obtain sunscreen clothing fabric.

[0033] In summary, this application has the following beneficial effects: 1. In this application, both nylon and polyester have certain anti-ultraviolet ability and can block some ultraviolet rays, while wool fiber itself also has certain sun protection function. In addition, wool fiber has natural hygroscopicity and air permeability, and can quickly absorb and remove sweat. Polyester fiber has good moisture conductivity, which is conducive to the diffusion and evaporation of sweat inside the fabric. In addition, wool fiber has a special fiber structure with holes in the middle, and the outer layer is not hydrophilic. In this way, when sweating, the water will be immediately absorbed by the holes in the fiber. It has a strong sweat absorption property. If the amount of sweat exceeds the water absorption rate of wool, the excess sweat will be directly discharged through the gaps between the wool, which fundamentally eliminates sweat after exercise. The problem of sticking to the body is solved, and the body and clothes are kept dry at the same time after sweating, which makes the wearing feel comfortable; and there are many natural tiny curls on the wool fiber, which are intertwined to form a small and narrow space, which can discharge water vapor and lock air convection, so that the wool fiber sunscreen clothing in the present application is cool to wear in summer and has a cooling effect. Finally, the fabric prepared in the present application is not only sun-proof and anti-ultraviolet, but also has the functions of moisture absorption and perspiration, and is suitable for making casual sunscreen clothing. Moreover, the sunscreen clothing in the present application will not stick to the body after exercise, and it feels cool and silky when worn, and has a cooling effect. In addition, it adopts a mixture of wool, polyester and spandex, and the cost is relatively low; 2. The warp of the sun-proof clothing fabric in this application is single-hole nylon filament. There is a channel inside the fiber of the single-hole nylon filament, which helps to improve the air permeability and moisture absorption of the fabric. The weft is made of wool fiber and polyester blended and then spun with spandex-polyester coated yarn. The wool fiber provides natural softness, warmth and moisture absorption, while the polyester fiber increases the wear resistance, wrinkle resistance and glossiness of the fabric. The spandex is the core yarn and the polyester is the outer layer, which can provide excellent elasticity. Finally, it combines the softness and comfort of wool with the strength, gloss, durability and elasticity of polyester and spandex. It has high strength and durability while maintaining the softness and comfort of wool, and has good elasticity. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with the examples. It is particularly noted that if no specific conditions are specified in the following examples, the experiments are carried out according to conventional conditions or the conditions recommended by the manufacturer. Unless otherwise specified, the raw materials used in the following examples can be obtained from common commercial sources.

[0035] In the following preparation examples, the hydrocarbon polymer waterproofing agent specifically selected is WSA03 fluorine-free waterproofing agent, which is a high molecular polymer emulsion waterproofing agent based on an acrylic acid system.

[0036] The following preparation example is an example of the preparation of a waterproof treatment liquid Preparation Example 1 A method for preparing a waterproof treatment liquid comprises the following steps: 1) Preparation of amino-modified nanoparticles: 15 kg of nano graphene oxide was dispersed in 35 kg of water and mixed, and then 4 kg of aminosilane KH-550 and 2 kg of N-hydroxymethyl stearamide were added and stirred for 15 min, and then nano silicon dioxide was added, the temperature was raised to 55° C., and then 0.7 kg of PAMAM and 1.2 kg of allyl glycine were added and treated for 35 min for amination modification, and then filtered and dried to obtain amino-modified nanoparticles; The added mass ratio of nano-graphene oxide to nano-silicon dioxide is 1:0.3, and the particle size of nano-graphene oxide is 40-80nm. The nano-silicon dioxide is selected from nano-silicon dioxide with a particle size of 5-10nm, a particle size of 20-30nm, and a particle size of 45-60nm. The mass ratio of nano-silicon dioxide with a particle size of 5-10nm, nano-silicon dioxide with a particle size of 20-30nm, and nano-silicon dioxide with a particle size of 45-60nm is 1:0.2:0.5. S2. Preparation of waterproof treatment liquid: 1.2 kg of versatate, 2 kg of ethylene glycol dimethacrylate, 1 kg of penetrant (specifically sodium N-lauroyl sarcosinate), 1 kg of amino-modified nanoparticles prepared in step 1), and 9 kg of water were mixed, and then the mixture was heated to 70°C, and 3 kg of hydrocarbon polymer waterproofing agent, 0.07 kg of initiator benzoyl peroxide, 0.4 kg of amino silicone oil, and 0.2 kg of genipin were added. The mixture was stirred for 2.5 hours and then cooled to obtain a waterproofing treatment solution.

[0037] Preparation Example 2 A method for preparing a waterproof treatment liquid comprises the following steps: 1) Preparation of amino-modified nanoparticles: 10 kg of nano graphene oxide was dispersed in 30 kg of water, and then 3 kg of aminosilane KH-550 and 1 kg of N-hydroxymethyl stearamide were added and stirred for 10 min, and then nano silicon dioxide was added, and the temperature was raised to 55° C., and then 0.5 kg of PAMAM and 0.8 kg of allyl glycine were added and treated for 30 min for amination modification, and then filtered and dried to obtain amino-modified nanoparticles; The mass ratio of nano-graphene oxide to nano-silicon dioxide is 1:0.3, and the particle size of nano-graphene oxide is 40-80nm. Nano-silicon dioxide is selected from nano-silicon dioxide with a particle size of 5-10nm, a particle size of 20-30nm, and a particle size of 45-60nm. The mass ratio of nano-silicon dioxide with a particle size of 5-10nm, nano-silicon dioxide with a particle size of 20-30nm, and nano-silicon dioxide with a particle size of 45-60nm is 1:0.2:0.4. S2. Preparation of waterproof treatment liquid: 0.8 kg of versatate, 1 kg of ethylene glycol dimethacrylate, 0.5 kg of penetrant (specifically sodium N-lauroyl sarcosinate), 0.8 kg of amino-modified nanoparticles prepared in step 1), and 8 kg of water were mixed, and then the temperature was raised to 65°C, and 2 kg of hydrocarbon polymer waterproofing agent, 0.05 kg of initiator benzoyl peroxide, 0.3 kg of amino silicone oil, and 0.1 kg of genipin were added, and the mixture was stirred for 2 hours and then cooled to obtain a waterproofing treatment solution.

[0038] Preparation Example 3 A method for preparing a waterproof treatment liquid comprises the following steps: 1) Preparation of amino-modified nanoparticles: 20 kg of nano graphene oxide was dispersed in 40 kg of water, and then 5 kg of aminosilane KH-550 and 3 kg of N-hydroxymethyl stearamide were added and stirred for 20 min, and then nano silicon dioxide was added, and the temperature was raised to 60° C., and then 1 kg of PAMAM and 1.5 kg of allyl glycine were added and treated for 40 min for amination modification, and then filtered and dried to obtain amino-modified nanoparticles; The added mass ratio of nano-graphene oxide to nano-silicon dioxide is 1:0.4, and the particle size of nano-graphene oxide is 40-80nm. The nano-silicon dioxide is selected from nano-silicon dioxide with a particle size of 5-10nm, a particle size of 20-30nm, and a particle size of 45-60nm. The mass ratio of nano-silicon dioxide with a particle size of 5-10nm, nano-silicon dioxide with a particle size of 20-30nm, and nano-silicon dioxide with a particle size of 45-60nm is 1:0.3:0.6. S2. Preparation of waterproof treatment liquid: 1.5 kg of versatate, 3 kg of ethylene glycol dimethacrylate, 1.5 kg of penetrant (specifically sodium N-lauroyl sarcosinate), 1.3 kg of amino-modified nanoparticles prepared in step 1), and 10 kg of water were mixed, and then the mixture was heated to 80°C, 4 kg of hydrocarbon polymer waterproofing agent, 0.1 kg of initiator benzoyl peroxide, 0.5 kg of amino silicone oil, and 0.3 kg of genipin were added, and the mixture was stirred for 3 hours and then cooled to obtain a waterproofing treatment solution.

[0039] Preparation Example 4 A method for preparing a waterproof treatment liquid is carried out according to the method in Preparation Example 1, except that the nano-silicon dioxide is a continuous grade nano-silicon dioxide with a particle size of 5-60 nm.

[0040] Preparation Example 5 A method for preparing a waterproof treatment liquid is carried out according to the method in Preparation Example 1, except that allylglycine is not added during the preparation of amino-modified nanoparticles.

[0041] Comparative Preparation Example 1 A method for preparing a waterproof treatment liquid is carried out according to the method in Preparation Example 1, except that, when preparing amino-modified nanoparticles in step 1), nano-graphene oxide and nano-silicon dioxide are directly added in proportion and dispersed in water, and then the temperature is raised to 55° C., and aminosilane and N-hydroxymethyl stearamide are directly added for treatment for 50 minutes, and then filtered and dried, and PAMAM and allyl glycine are not added.

[0042] Comparative Preparation Example 2 A method for preparing a waterproof treatment liquid is carried out according to the method in Preparation Example 1, except that the amino-modified nanoparticles are replaced by an equal amount of a mixture of nano-graphene oxide and nano-silicon dioxide, and the added mass ratio of nano-graphene oxide and nano-silicon dioxide is 1:0.3.

[0043] Comparative Preparation Example 3 A method for preparing a waterproof treatment liquid is carried out according to the method in Preparation Example 1, except that an equal amount of amino-modified nanoparticles is replaced by nano-silicon dioxide.

[0044] The following preparation example is an example of the preparation of an anti-ultraviolet finishing liquid Preparation Example 6 A method for preparing an anti-ultraviolet finishing liquid comprises the following steps: a. After mixing 5 kg of polyvinyl pyrrolidone (specifically povidone K30) and 35 kg of water, 20 kg of nano titanium dioxide with a particle size of 20-40 nm, 5 kg of carbon nanotubes and 6 kg of nano silicon dioxide with a particle size of 40-80 nm were added, and mixed solution A was obtained after ultrasonic dispersion; b. Mix 8 kg of benzophenone ultraviolet absorber (specifically 4-propyleneoxy-2-hydroxybenzophenone), 4 kg of phosphonic acid monoester nickel-type light stabilizer (specifically bis(3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid monoethyl ester) nickel) with 35 kg of water, add 5-10 kg of hydroxypropyl β-cyclodextrin to prepare a mixed solution B, and then mix the mixed solution A with the mixed solution B to prepare an anti-ultraviolet finishing solution.

[0045] Preparation Example 7 A method for preparing an anti-ultraviolet finishing liquid comprises the following steps: a. After mixing 3 kg of polyvinyl pyrrolidone (specifically povidone K30) and 30 kg of water, 15 kg of nano titanium dioxide with a particle size of 20-40 nm, 3 kg of carbon nanotubes and 5 kg of nano silicon dioxide with a particle size of 40-80 nm were added, and mixed solution A was obtained after ultrasonic dispersion; b. Mix 5 kg of benzophenone ultraviolet absorber (specifically 4-propyleneoxy-2-hydroxybenzophenone), 3 kg of phosphonic acid monoester nickel-type light stabilizer (specifically bis(3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid monoethyl ester) nickel) with 30 kg of water, add 5 kg of hydroxypropyl β-cyclodextrin to prepare a mixed solution B, and then mix the mixed solution A with the mixed solution B to prepare an anti-ultraviolet finishing solution.

[0046] Preparation Example 8 A method for preparing an anti-ultraviolet finishing liquid comprises the following steps: a. After mixing 8 kg of polyvinyl pyrrolidone (specifically, povidone K30) and 40 kg of water, 25 kg of nano titanium dioxide with a particle size of 20-40 nm, 8 kg of carbon nanotubes, and 8 kg of nano silicon dioxide with a particle size of 40-80 nm were added, and mixed solution A was obtained after ultrasonic dispersion; b. Mix 10 kg of benzophenone ultraviolet absorber (specifically 4-propyleneoxy-2-hydroxybenzophenone), 5 kg of phosphonic acid monoester nickel-type light stabilizer (specifically bis(3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid monoethyl ester) nickel) with 40 kg of water, add 10 kg of hydroxypropyl β-cyclodextrin to prepare a mixed solution B, and then mix the mixed solution A with the mixed solution B to prepare an anti-ultraviolet finishing solution.

[0047] Preparation Example 9 A method for preparing an anti-ultraviolet finishing liquid is carried out according to the method in Preparation Example 6, except that no nano-silicon dioxide is added in step a.

[0048] Comparative Preparation Example 4 A method for preparing an anti-ultraviolet finishing liquid is carried out according to the method in Preparation Example 6, except that polyvinyl pyrrolidone is not added in step a.

[0049] Comparative Preparation Example 5 A method for preparing an anti-ultraviolet finishing liquid is carried out according to the method in Preparation Example 6, except that hydroxypropyl β-cyclodextrin is not added in step b.

[0050] Comparative Preparation Example 6 A method for preparing an anti-ultraviolet finishing liquid is carried out according to the method in Preparation Example 6, except that in step b, an equal amount of hydroxypropyl β-cyclodextrin is replaced by β-cyclodextrin.

[0051] Example 1 A method for preparing a sun-proof and UV-resistant casual sun-protective clothing fabric comprising the following steps: S1. The fabric base material is made by interweaving 20D / 1 single-hole nylon filament as the warp and wool-polyester sarafil stretch yarn as the weft, with a warp density of 60 strands / cm and a weft density of 50 strands / cm. The wool-polyester sarafil stretch yarn is made by blending wool fiber and polyester fiber in a mass ratio of 65:35 into yarn, and then spinning it with 30D / 30D spandex-polyester covered yarn. The spandex-polyester covered yarn is made of 30D spandex as the core yarn and 30D polyester as the covering yarn, and the proportion of spandex core yarn is 20%, and the proportion of polyester covering yarn is 80%; S2, firstly dilute the waterproof treatment liquid prepared in Preparation Example 1 by 9 times by mass and add it to the fabric base material prepared in step S1 for padding treatment, the immersion temperature is 180°C, the rolling speed is 15m / min, the rolling temperature is 110°C, the rolling rate reaches 80%, and then dry to obtain the primary fabric; The anti-ultraviolet finishing liquid prepared in Preparation Example 6 was diluted by 5 times of mass, and then the primary fabric was added into the anti-ultraviolet finishing liquid after heating to 90°C for immersion and rolling. The immersion temperature was 170°C, the rolling speed was 13m / min, and the rolling temperature was 100°C. After two immersion and two rolling treatments with a rolling rate of 65%, the fabric was dried to obtain a sun-proof clothing fabric.

[0052] Example 2 A method for preparing a sun-proof and UV-resistant casual sun-protective clothing fabric comprising the following steps: S1. The fabric base material is made by interweaving 20D / 1 single-hole nylon filament as the warp and wool-polyester sarafil stretch yarn as the weft, with a warp density of 55 yarns / cm and a weft density of 45 yarns / cm. The wool-polyester sarafil stretch yarn is made by blending wool fiber and polyester fiber in a mass ratio of 65:35 into yarn, and then spinning it with 30D / 30D spandex-polyester covered yarn. The spandex-polyester covered yarn is made of 30D spandex as the core yarn and 30D polyester as the covering yarn, and the proportion of spandex core yarn is 20%, and the proportion of polyester covering yarn is 80%; S2, firstly dilute the waterproof treatment liquid prepared in Preparation Example 2 by 8 times by mass and add it to the fabric base material prepared in step S1 for padding treatment, the immersion temperature is 175°C, the rolling speed is 10m / min, the rolling temperature is 100°C, the rolling rate reaches 80%, and then dry to obtain the primary fabric; The anti-ultraviolet finishing liquid prepared in Preparation Example 7 was diluted by 4 times of mass, and then the temperature was raised to 85°C, and the primary fabric was added into the anti-ultraviolet finishing liquid for immersion and rolling. The immersion temperature was 160°C, the rolling speed was 12m / min, and the rolling temperature was 90°C. After two immersion and two rolling treatments with a rolling rate of 65%, the fabric was dried to obtain a sun-proof clothing fabric.

[0053] Example 3 A method for preparing a sun-proof and UV-resistant casual sun-protective clothing fabric comprising the following steps: S1. The fabric base material is made by interweaving 20D / 1 single-hole nylon filament as the warp and wool-polyester sarafil stretch yarn as the weft, with a warp density of 65 yarns / cm and a weft density of 55 yarns / cm. The wool-polyester sarafil stretch yarn is made by blending wool fiber and polyester fiber in a mass ratio of 65:35 into yarn, and then spinning it with 30D / 30D spandex-polyester covered yarn. The spandex-polyester covered yarn is made of 30D spandex as the core yarn and 30D polyester as the covering yarn, and the proportion of spandex core yarn is 20%, and the proportion of polyester covering yarn is 80%; S2, firstly dilute the waterproof treatment liquid prepared in Preparation Example 3 by 10 times by mass and add it to the fabric base material prepared in step S1 for padding treatment, the immersion temperature is 190°C, the rolling speed is 20m / min, the rolling temperature is 110°C, the rolling rate reaches 80%, and then dry to obtain the primary fabric; The anti-ultraviolet finishing liquid prepared in Preparation Example 8 was diluted by 5 times of mass, and then the primary fabric was added into the anti-ultraviolet finishing liquid after heating to 95°C for immersion and rolling. The immersion temperature was 180°C, the rolling speed was 15m / min, and the rolling temperature was 120°C. Two immersion and two rolling treatments were performed. After the rolling rate reached 65%, the fabric was dried to obtain a sun-proof clothing fabric.

[0054] Embodiment 4-5 A method for preparing a sun-proof and UV-resistant casual sunscreen clothing fabric is carried out according to the method in Example 1, except that the waterproof treatment liquid in step S2 is the waterproof treatment liquid prepared in Preparation Examples 4-5.

[0055] Embodiment 6-8 A method for preparing a sun-proof and UV-resistant casual sunscreen clothing fabric is carried out according to the method in Example 1, except that the waterproof treatment liquid in step S2 is selected from the waterproof treatment liquid prepared in comparative preparation examples 1-3.

[0056] Example 9 A method for preparing a sun-proof and UV-resistant casual sun-protective clothing fabric is carried out according to the method in Example 1, except that the anti-ultraviolet finishing liquid in step S2 is the anti-ultraviolet finishing liquid prepared in Preparation Example 9.

[0057] Comparative Examples 1-3 A method for preparing a sun-proof and UV-resistant casual sunscreen clothing fabric is carried out according to the method in Example 1, except that the anti-ultraviolet finishing liquid in step S2 is the anti-ultraviolet finishing liquid prepared in comparative preparation examples 4-6.

[0058] Comparative Example 4 A method for preparing a sun-proof and UV-resistant casual sunscreen clothing fabric is carried out according to the method in Example 1, except that, in step S1, the wool-polyester sarafil stretch yarn in the weft is made by directly spinning sarafil from polyester fiber and spandex-polyester coated yarn, without adding wool fiber.

[0059] Performance Testing The sun protection clothing fabrics prepared in the examples and comparative examples of the present application were tested for sun protection index UPF and UVA transmittance before washing and after washing 30 times according to GB / T 18830-2009 "Evaluation Standard for Ultraviolet Protection of Textiles". The test results are shown in Table 1 below.

[0060] Table 1: In addition, the fabrics prepared in the embodiments and comparative examples of the present application were prepared with reference to GB / T 8628-2013 "Preparation, marking and measurement of fabric samples and clothing samples in tests for determining dimensional changes of textiles", GB / T 8629-2017 "Washing and drying procedures for textile testing" and GB / T 8630-2013 "Determination of dimensional changes of textiles after washing and drying". A 100 cm × 100 cm sample was prepared according to the above standards for measurement after washing, and the average value of the washing shrinkage was statistically calculated. The test results are shown in Table 2 below. At the same time, the air permeability was tested with reference to GB / T 5453-1997 "Determination of air permeability of textile fabrics", and the test results are shown in Table 2 below.

[0061] Table 2: According to the test results in Table 1 and Table 2, the sunscreen fabrics prepared in the examples of the present application exhibit excellent UV resistance, good air permeability and low water shrinkage. In addition, after the fabrics prepared in Examples 1-3 were made into sunscreen clothing, many wearers reported that the clothing did not stick to the body after exercise, and felt cool and silky when worn, with a natural cooling effect.

[0062] Referring to the test results of Example 1 and Example 4, when a single nano-silica is used in the waterproof layer, not only its water washing shrinkage rate is increased and the air permeability is reduced, but it also affects the penetration of the subsequent anti-ultraviolet finishing liquid and the bonding performance with the substrate. The anti-ultraviolet performance after washing is also reduced, which not only affects the waterproof performance, but also affects the adhesion of the anti-ultraviolet layer to the substrate, thereby affecting the anti-ultraviolet performance after washing. Combined with the test results of Example 5, when allyl glycine is not added during the preparation of amino-modified nanoparticles in the waterproof layer, it not only affects its water washing shrinkage rate, but also can form a stronger bond with the filler in the anti-ultraviolet layer, thereby affecting the anti-ultraviolet performance after washing. Referring to the test results of Example 6, when the nanoparticles in the waterproof layer are only modified with aminosilane, the water washing shrinkage rate increases, and the anti-ultraviolet performance after water washing is also significantly reduced. The amino functional groups in the waterproof layer are reduced, reducing the active sites for binding with the anti-ultraviolet layer, affecting the binding performance after water washing. Combined with the test results of Examples 7 and 8, when the nanoparticles in the waterproof layer are not amino-modified or the nanoparticles are only nano-silicon dioxide, the water washing shrinkage rate is greatly increased and the anti-ultraviolet performance after water washing is greatly reduced. The addition of amino-modified fillers in the waterproof layer not only affects its water washing shrinkage rate, but also affects the binding performance with the anti-ultraviolet layer and thus affects the anti-ultraviolet performance after water washing.

[0063] Referring to the test results of Example 1 and Example 9, when nano-silicon dioxide is not added to the anti-ultraviolet layer in Example 9, the anti-ultraviolet performance is slightly reduced before washing, and the anti-ultraviolet performance is significantly reduced after washing, and the binding sites between the anti-ultraviolet layer and the waterproof layer are significantly reduced. Combined with the test results of Comparative Examples 1 and 2, when polyvinyl pyrrolidone or hydroxypropyl β-cyclodextrin is not added to the anti-ultraviolet finishing liquid, its anti-ultraviolet performance is significantly reduced, which not only affects the uniform dispersibility of the anti-ultraviolet finishing liquid, but also affects the penetration and bonding with the substrate, and the bonding performance between the waterproof layer and the substrate is also affected, which ultimately affects the anti-ultraviolet performance. Combined with the test results of Comparative Example 3, when hydroxypropyl β-cyclodextrin is replaced with β-cyclodextrin in equal amounts, its anti-ultraviolet performance is also reduced, especially after washing. Referring to the test results of Comparative Example 4, when wool fiber is not added to the sun-proof clothing fabric, although its washing shrinkage is low, its air permeability is greatly reduced, and its anti-ultraviolet performance is also reduced. More importantly, the sun-proof clothing touches the wearer's body after exercise, and its moisture absorption and perspiration performance is reduced.

[0064] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A sun-proof and UV-resistant casual sun-protective clothing fabric, characterized in that: The invention comprises a fabric base material, which is made by interweaving warp and weft. The warp is single-hole nylon filament, and the weft is wool-polyester sarafan stretch yarn. The wool-polyester sarafan stretch yarn is made by blending wool fiber and polyester fiber and then sarafan spinning with spandex-polyester coated yarn.

2. The sun-proof and UV-resistant casual sun-protective clothing fabric according to claim 1, characterized in that: The single-hole nylon filament is made of 20D / 1 single-hole nylon filament, and the wool fiber and the polyester fiber are blended in a ratio of 65:35, and the spandex-polyester coated yarn is made of 30D spandex as the core yarn and 30D polyester as the coating yarn.

3. The sun-proof and UV-resistant casual sun-protective clothing fabric according to claim 1, characterized in that: The fabric substrate is firstly padded in a waterproof treatment liquid and then padded in an anti-ultraviolet finishing liquid, wherein the anti-ultraviolet finishing liquid comprises the following raw materials in parts by weight: 5-10 parts of hydroxypropyl beta-cyclodextrin, 3-8 parts of polyvinyl pyrrolidone, 15-25 parts of nano titanium dioxide, 5-10 parts of benzophenone ultraviolet absorber, 3-5 parts of phosphonic acid monoester nickel type light stabilizer, 3-8 parts of carbon nanotubes and 60-80 parts of water.

4. The sun-proof and UV-resistant casual sun-protective clothing fabric according to claim 3, characterized in that: The raw materials of the anti-ultraviolet finishing liquid also include 5-8 parts of nano silicon dioxide.

5. The sun-proof and UV-resistant casual sun-proof clothing fabric according to claim 3, characterized in that: The anti-ultraviolet absorber is 4-propyleneoxy-2-hydroxybenzophenone.

6. The sun-proof and UV-resistant casual sun-proof clothing fabric according to claim 3, characterized in that: The anti-ultraviolet finishing liquid is prepared by the following method: After mixing polyvinyl pyrrolidone and part of water, nano titanium dioxide and carbon nanotubes are added, and mixed solution A is prepared after ultrasonic dispersion; The benzophenone type ultraviolet absorber, the phosphonic acid monoester nickel type light stabilizer and the remaining water are mixed, and then hydroxypropyl beta-cyclodextrin is added to prepare a mixed solution B, and then the mixed solution A is mixed with the mixed solution B to prepare an anti-ultraviolet finishing solution.

7. The sun-proof and UV-resistant casual sun-protective clothing fabric according to claim 1, characterized in that: The waterproof treatment liquid comprises the following raw materials in parts by weight: 2-4 parts of hydrocarbon polymer waterproofing agent, 1-3 parts of ethylene glycol dimethacrylate, 0.5-1.5 parts of penetrant, 0.05-0.1 parts of initiator, 0.8-1.5 parts of versatate vinyl carbonate, 0.3-0.5 parts of amino silicone oil, 0.8-1.3 parts of amino modified nanoparticles and 0.1-0.3 parts of genipin and 8-10 parts of water.

8. The sun-proof and UV-resistant casual sun-protective clothing fabric according to claim 7, characterized in that: The amino-modified nanoparticles are prepared by the following method: firstly, nano-graphene oxide is dispersed in water and mixed, then aminosilane and nano-silicon dioxide are added, then PAMAM and allylglycine are added for amination modification, then filtered and dried to obtain amino-modified nanoparticles.

9. A method for preparing a sun-proof and UV-resistant casual sun-protective clothing fabric according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Using single-hole nylon filament as warp and wool-polyester cerofoil stretch yarn as weft to interweave and prepare a fabric base material; S2. The fabric base material is firstly treated by padding in a waterproof treatment liquid and then dried, and then the base material is treated by padding in an anti-ultraviolet finishing liquid and dried to obtain a sun-proof clothing fabric.

10. The method for preparing a sun-proof and UV-resistant casual sun-proof clothing fabric according to claim 9, characterized in that: The specific operations in step S2 are: First, the waterproof treatment liquid is diluted by 8-10 times by weight and then added to the fabric base material prepared in step S1 for padding treatment, the immersion temperature is 175-190° C., the rolling speed is 10-20 m / min, the rolling temperature is 100-110° C., and the primary fabric is obtained after drying; After diluting the anti-ultraviolet finishing liquid by 4-5 times of mass, heating to 85-95°C, adding the primary fabric into the anti-ultraviolet finishing liquid for dipping and rolling, the dipping temperature is 160-180°C, the rolling speed is 12-15m / min, the rolling temperature is 90-120°C, and after double dipping and double rolling treatment, drying is performed to obtain sunscreen clothing fabric.

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