Washable waterproof windproof wool jacket fabric and preparation method thereof

Abstract

The invention relates to the field of worsted fabrics, and particularly discloses a washable waterproof windproof wool jacket fabric and a preparation method thereof.The washable waterproof windproof wool jacket fabric comprises a fabric base material, the fabric base material is composed of a fabric front face formed by chinlon and spandex coated yarn and a fabric back face formed by wool, and the fabric base material is obtained after padding and finishing of fluoride-free waterproof finishing liquid; the preparation method comprises the following steps: S1, weaving the chinlon and spandex coated yarns and the wool to form a fabric base material; s2, the prepared fabric base material is subjected to padding treatment in fluoride-free waterproof finishing liquid, and the washable waterproof windproof wool jacket fabric is prepared. The fabric has the characteristic of improving the washing resistance and the washing size stability of the outdoor jacket fabric.

Description

Technical Field

[0001] The present application relates to the field of worsted fabrics, and more specifically, to a washable, waterproof and windproof wool jacket fabric and a preparation method thereof. Background Art

[0002] With the improvement of people's living standards and the enhancement of health awareness, sports have become an important part of many people's daily lives, especially outdoor sports. As one of the key equipment for outdoor sports, the fabric performance of jackets directly affects the experience and comfort of athletes.

[0003] Jacket fabrics are breathable, which can maintain body temperature and make them more comfortable and breathable. They are very popular among consumers. However, there are some common problems with jacket fabrics on the market that need to be solved urgently. The most prominent one is washability. Jacket fabrics are prone to shrinkage during washing. Usually, the shrinkage is greater than 1.5%. This means that after multiple washes, the size of the jacket will be significantly reduced, affecting the wearing effect and comfort. This problem limits the number of times the jacket can be machine washed, causing inconvenience to consumers. On the other hand, with the rise of outdoor sports and citywalk lifestyles, consumers' demands for jackets have become more diversified. They hope that jackets not only have excellent waterproof, breathable and warm properties, but also meet the requirements of lightness, comfort and simplicity. However, the jackets currently on the market often have shortcomings in these aspects. For example, although hardshell jackets have good protection performance, they are less comfortable, while softshell jackets are more comfortable but have relatively less functionality such as windproof. Three-in-one jackets are too cumbersome and inconvenient for daily wear. They cannot meet the needs of outdoor sports enthusiasts such as hiking and mountaineering, as well as consumer groups such as citywalk and commuting for lightness, comfort and simplicity.

[0004] In view of the above situation, the demand for jacket fabrics with higher water resistance and lower water shrinkage is becoming increasingly urgent. It is urgent to improve the water resistance and water washing dimensional stability of jacket fabrics, so as to extend the service life and wearing comfort of the product. Summary of the invention

[0005] In order to improve the washability and dimensional stability of jacket fabrics, the present application provides a washable, waterproof and windproof wool jacket fabric and a preparation method thereof.

[0006] In a first aspect, the present application provides a washable, waterproof and windproof wool jacket fabric, which adopts the following technical solution: A washable, waterproof and windproof woolen jacket fabric comprises a fabric base material, wherein the fabric base material comprises a fabric front surface formed by nylon and spandex coated yarns and a fabric back surface formed by wool, and the fabric base material is obtained by padding and finishing with a fluorine-free waterproof finishing liquid.

[0007] By adopting the above technical scheme, nylon and spandex coated yarn are first used as the front of the fabric in this application. The combination of the two makes the fabric more delicate, soft and comfortable to the touch, and enhances the tightness and elasticity of the fabric, which helps to block the penetration of wind force and improve the windproof effect. Moreover, the addition of spandex makes the fabric have better elasticity, can adapt to sports needs, and provide a comfortable wearing experience. The reverse side is made of wool, which has excellent warm and moisturizing functions, and has wool with moderate tension for stretching. The jacket fabric obtained in this way has the characteristics of windproof, good elasticity and delicateness, and has good warm and moisturizing functions and soft and comfortable touch. Finally, the jacket fabric obtained in this application has a better quality and better warmth retention. The fabric has the function of blocking rain while allowing sweat to evaporate, keeping the body dry, and has the function of waterproof, windproof, warm, absorbing and perspiration, which can prevent cold air from entering and discharge moisture, so that the wearer's body remains warm, dry, comfortable and light, which is more in line with the general public. What is more important is that the waterproof treatment adopts fluorine-free waterproof finishing liquid, which is environmentally friendly, and its water resistance is significantly improved. At the same time, its water washing shrinkage rate is greatly improved to less than 1.5%, which improves its machine washability and increases its service life.

[0008] Optionally, the nylon is 70D / 68F nylon matte FDY, the spandex coated yarn is 40D spandex coated yarn, and the wool is merino mercerized wool with an average diameter of 18-20um.

[0009] By adopting the above technical solutions, 70D / 68F nylon matte FDY has high strength, high elongation, good wear resistance and anti-fatigue performance. The matte treatment makes it have a soft appearance and lower gloss, which is suitable for outdoor clothing such as jackets; 40D spandex coated yarn has the characteristics of high elongation at break, high elastic recovery rate and low elastic modulus, which gives the fabric good elasticity and makes it more comfortable to wear. The mercerized wool has good gloss and softness, and its main characteristics are shrinkage resistance, machine washability and anti-pilling. Its fiber feels smooth, soft and delicate, and is suitable for the reverse side of outdoor clothing such as underwear and jackets to increase warmth and comfort.

[0010] The front structure of the fabric composed of the above-mentioned nylon and spandex coated yarn in this application is tight, which can effectively block the invasion of wind and keep the body warm. The addition of 40D spandex coated yarn gives the fabric good elasticity, making it more comfortable to wear and able to adapt to various sports needs. The Merino mercerized wool as the back of the fabric has good thermal insulation performance. In addition, the above-mentioned coarse and thin yarns are combined in this application with a 2:1 weft ratio arrangement, which can directly realize that the back of the fabric is wool, and the fabric with nylon and spandex coated yarn on the front and wool on the reverse is obtained.

[0011] Optionally, in the front fabric, nylon accounts for 80-90% and spandex accounts for 10-20%.

[0012] Optionally, the fluorine-free waterproof finishing liquid includes 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.

[0013] By adopting the above technical scheme, the waterproof treatment in the present application adopts fluorine-free waterproof treatment, in which 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, and prevent moisture from penetrating into the interior of the fabric, thereby protecting the fabric substrate, slowing down the influence of moisture and reducing the shrinkage rate of washing. In addition, tert-butylene carbonate and ethylene glycol dimethacrylate are also added in the present application. Ethylene glycol dimethacrylate is used as a cross-linking agent to form a chemical bond with the fabric fiber. At the same time, the unsaturated double bonds between ethylene glycol dimethacrylate and tert-butylene carbonate form a chemical reaction, which can enhance the On the one hand, the tertiary carbon group forms a great steric hindrance relationship with the fiber, which significantly improves its wash resistance. The addition of penetrant can improve the permeability of fluorine-free waterproof finishing liquid in the fabric fiber, so that the waterproof agent can be more evenly distributed to form a more stable waterproof layer. Amino silicone oil, as a softener, can improve the feel and softness of the fabric. More importantly, it can reduce the friction and entanglement between fibers, thus reducing the shrinkage rate during washing. The addition of modified nanoparticles can fill the gaps between fabric fibers, enhance the dimensional stability of the fabric, and improve its waterproofness.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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).

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] In a second aspect, the present application provides a method for preparing a washable, waterproof and windproof wool jacket fabric, which adopts the following technical solution: A method for preparing a washable, waterproof and windproof wool jacket fabric comprises the following steps: S1, weaving nylon and spandex coated yarn and wool to form a fabric base material; S2. The prepared fabric substrate is subjected to padding treatment in a fluorine-free waterproof finishing liquid to prepare a washable, waterproof and windproof wool jacket fabric.

[0023] By adopting the above technical solution, the solution provided in this application is simple, convenient and easy to realize industrialization.

[0024] Optionally, during the weaving process in step S1, 70D / 68F nylon matte FDY+40D spandex coated yarn is used as the front yarn, and 48 / 2 worsted mercerized all-wool double yarn is used as the back yarn. After interweaving, a front side of the fabric is formed by nylon + spandex coated yarn and a back side of the fabric is formed by wool. During the interweaving process, the sum of the nylon and spandex coated yarn in the weft direction is arranged with the wool in a ratio of 1:2 so that the wool yarn appears on the back side.

[0025] By adopting the above technical solution, 70D / 68F nylon matte FDY and 40D spandex covered yarn are used as the front yarn, while 48 / 2 worsted mercerized all-wool double yarn is used as the back yarn. During the interweaving process, the nylon and spandex covered yarns in the weft direction are arranged in a ratio of 1:2 with the wool, ensuring that the wool yarn mainly appears on the back of the fabric.

[0026] Optionally, during the weaving process in step S1, the nylon and spandex coated yarns are firstly woven in proportion to obtain a first fabric layer; Weaving the wool to obtain a second fabric layer; The first fabric layer and the second fabric layer are hot-pressed and laminated with polyurethane hot melt adhesive to obtain a fabric base material, and the hot-pressing and laminating pressure is 15-25N.

[0027] Optionally, when immersing and rolling in the fluorine-free waterproof finishing liquid, the immersion temperature is 170-180°C, the rolling speed is 12-15m / min, and the rolling temperature is 90-120°C.

[0028] Optionally, in step S2, the fabric substrate is subjected to a roughening process after the padding treatment.

[0029] By adopting the above technical solution, the reverse wool surface of the fabric substrate is subjected to a napping process to make the fabric feel better and have better warmth retention. The fabric has the function of blocking rain while allowing sweat to evaporate, thus keeping the body dry.

[0030] In summary, this application has the following beneficial effects: 1. In this application, nylon and spandex coated yarn are first used as the front side of the fabric. The combination of the two makes the fabric more delicate, soft and comfortable to the touch, and enhances the tightness and elasticity of the fabric, which helps to block the penetration of wind and improve the windproof effect. Moreover, the addition of spandex makes the fabric more elastic, can adapt to sports needs, and provide a comfortable wearing experience. The reverse side is made of wool, which has excellent warmth and moisturizing functions, and at the same time has moderate stretch tension. The jacket fabric obtained in this way is not only windproof, elastic and delicate, but also has good warmth and moisturizing functions and a soft and comfortable touch. 2. The waterproof treatment in this application adopts fluorine-free waterproof finishing liquid, which is environmentally friendly, and its water resistance is significantly improved. At the same time, its water washing shrinkage is greatly improved to less than 1.5%, thereby improving its machine washability and increasing its service life. DETAILED DESCRIPTION

[0031] 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.

[0032] In the following embodiments, the 40D spandex coated yarn is specifically selected from 40D+70 spandex coated yarns having 88% nylon and 12% spandex components.

[0033] 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.

[0034] The following preparation example is a preparation example of a fluorine-free waterproof finishing liquid Preparation Example 1 A method for preparing a fluorine-free waterproof finishing 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 fluorine-free waterproof finishing 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 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 at 70° C. The mixture was stirred for 2.5 hours and then cooled to obtain a fluorine-free waterproof finishing liquid.

[0035] Preparation Example 2 A method for preparing a fluorine-free waterproof finishing 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 fluorine-free waterproof finishing 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 mixture was heated to 65° C., 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 fluorine-free waterproof finishing liquid.

[0036] Preparation Example 3 A method for preparing a fluorine-free waterproof finishing 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 fluorine-free waterproof finishing 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 fluorine-free waterproof finishing liquid.

[0037] Preparation Example 4 A method for preparing a fluorine-free waterproof finishing 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 20-40 nm.

[0038] Preparation Example 5 A method for preparing a fluorine-free waterproof finishing 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.

[0039] Preparation Example 6 A method for preparing a fluorine-free waterproof finishing liquid is carried out according to the method in Preparation Example 1, except that allyl glycine is not added during the preparation of amino-modified nanoparticles.

[0040] Preparation Example 7 A method for preparing a fluorine-free waterproof finishing liquid is carried out according to the method in Preparation Example 1, except that PAMAM is not added during the preparation of amino-modified nanoparticles.

[0041] Preparation Example 8 A method for preparing a fluorine-free waterproof finishing 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 and dispersed in water in proportion, and then after heating to 55° C., aminosilane, N-hydroxymethyl stearamide, PAMAM and allyl glycine are directly added and treated for 50 minutes, followed by filtering and drying.

[0042] Preparation Example 9 A method for preparing a fluorine-free waterproof finishing 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 after heating to 55° C., 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.

[0043] Comparative Preparation Example 1 A method for preparing a fluorine-free waterproof finishing 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 to nano-silicon dioxide is 1:0.3.

[0044] Comparative Preparation Example 2 A method for preparing a fluorine-free waterproof finishing liquid is carried out according to the method in Preparation Example 1, except that versatate vinyl carbonate is not added to the raw materials.

[0045] Comparative Preparation Example 3 A method for preparing a fluorine-free waterproof finishing liquid is carried out according to the method in Preparation Example 1, except that no genipin is added to the raw materials.

[0046] Comparative Preparation Example 4 A method for preparing a fluorine-free waterproof finishing liquid is carried out according to the method in Preparation Example 1, except that amino silicone oil is not added to the raw materials.

[0047] Comparative Preparation Example 5 A method for preparing a fluorine-free waterproof finishing 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.

[0048] Example 1 A method for preparing a washable, waterproof and windproof wool jacket fabric comprises the following steps: S1. Weaving nylon and spandex coated yarns and wool to form a fabric base material, specifically: using 70D / 68F nylon matte FDY+40D spandex coated yarn as the front yarn and 48 / 2 worsted mercerized all-wool double yarn as the back yarn, and forming a fabric front formed by nylon + spandex coated yarn and a fabric back formed by wool through interweaving, and in the interweaving process, the sum of nylon and spandex coated yarns and wool in the weft direction are arranged in a ratio of 1:2 so that the wool yarn appears on the back, and the nylon accounts for 80% and the spandex accounts for 20% in the front yarn; S2. Dilute the fluorine-free waterproof finishing liquid prepared in Preparation Example 1 by 8-10 times by mass and add it to the fabric base material prepared in step S1 for immersion treatment (specifically including immersion, rolling and drying). During immersion, the immersion temperature is 175°C, the rolling speed is 13m / min, and the rolling temperature is 100°C. After the immersion treatment, a napping treatment (raising-shearing and shaping) is also performed to obtain a washable, waterproof and windproof wool jacket fabric.

[0049] Example 2 A method for preparing a washable, waterproof and windproof wool jacket fabric is carried out according to the method in Example 1, except that the specific operation in step S1 is: weaving 70D / 68F nylon matte FDY and 40D spandex coated yarn to obtain a first fabric layer, wherein the nylon accounts for 80% and the spandex accounts for 20% in the first fabric layer; and then weaving wool to obtain a second fabric layer; Then, polyurethane hot melt adhesive is applied on the first fabric layer. The usage of polyurethane hot melt adhesive is 10g / m 2 Then, the second fabric layer is lowered and hot-pressed with the first fabric layer under a pressure of 20N to obtain a fabric base material, wherein nylon + spandex is the front side of the fabric and wool is the back side of the fabric.

[0050] Example 3 A method for preparing a washable, waterproof and windproof wool jacket fabric is carried out according to the method in Example 2, except that the hot pressing pressure in step S1 is 15N, and the fluorine-free waterproof finishing liquid in step S2 is the fluorine-free waterproof finishing liquid prepared in Preparation Example 2, and the immersion temperature in step S2 is 170°C, the rolling speed is 12m / min, and the rolling temperature is 90°C.

[0051] Example 4 A method for preparing a washable, waterproof and windproof wool jacket fabric is carried out according to the method in Example 2, except that the hot pressing pressure in step S1 is 25N, and the fluorine-free waterproof finishing liquid in step S2 is the fluorine-free waterproof finishing liquid prepared in Preparation Example 3, and the immersion temperature in step S2 is 180°C, the rolling speed is 15m / min, and the rolling temperature is 120°C.

[0052] Embodiment 5-10 A method for preparing a washable, waterproof and windproof wool jacket fabric is carried out according to the method in Example 2, except that the fluorine-free waterproof finishing liquid in step S2 is the fluorine-free waterproof finishing liquid prepared in Preparation Examples 4-9.

[0053] Comparative Examples 1-5 A method for preparing a washable, waterproof and windproof wool jacket fabric is carried out according to the method in Example 2, except that the fluorine-free waterproof finishing liquid in step S2 is selected from the fluorine-free waterproof finishing liquid prepared in comparative preparation examples 1-5.

[0054] Performance Testing The fabrics prepared in the examples and comparative examples of the present application were prepared with reference to GB / T 8628-2013 "Preparation, marking and measurement of fabric specimens and garment specimens 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". 100 cm × 100 cm samples were prepared according to the above standards for measurement after washing, and the average value of the washing shrinkage was calculated. In addition, the fabric substrate was not treated with a waterproof finishing agent as a blank control group and the above test was also carried out. The test results are shown in Table 1 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 1 below.

[0055] Table 1: Referring to the test results in Table 1 above, the fabric prepared in the present application has a water washing shrinkage rate of 8-10% compared to traditional fabrics, and the water washing shrinkage rate of the fabric in Examples 1-4 of the present application is less than 3%, which greatly reduces the water washing shrinkage rate, improves the water washing shrinkage deformation phenomenon, and has excellent breathability. Combined with the test results of Example 2, Example 4 and Example 5, when the nano-silicon dioxide is selected with a continuous grade particle size, its water washing shrinkage is increased compared with that in Example 2, and its air permeability is also reduced. Combined with the test results of Example 2, Example 6 and Example 7, when the amino-modified nano-graphene oxide and nano-silicon dioxide are treated with amino groups, the water washing shrinkage is significantly increased when allyl glycine is not added to the amino-modified reagent, and it is also increased when PAMAM is not added. Combined with the test results of Example 8, when the amino-modified graphene oxide and silica are directly modified at one time, the water washing shrinkage is significantly increased. The modification in stages in Example 2 helps to improve the modification effect and can also solve the agglomeration problem and improve the modification effect. Referring to the test results of Example 9, when only conventional aminosilane and N-hydroxymethyl stearamide are used for treatment in Example 9, the water washing shrinkage is also significantly increased, and the water washing shrinkage is lower when the modification method in Example 2 is used.

[0056] Referring to the test results of Example 1 and Comparative Example 1, when nano-graphene oxide and nano-silicon dioxide are directly added without modification, the effect of binding with the fiber is limited, and the water washing shrinkage is significantly improved. Combined with the test results in Comparative Example 2, when no tert-butyl ethylene carbonate is added to the waterproof finishing agent, the water washing shrinkage is high. The introduction of tert-carbonyl groups in tert-butyl ethylene carbonate helps to improve the waterproof performance of the fabric, thereby reducing the water washing shrinkage. Combined with the test results of Comparative Example 3, when no genipin is added in Comparative Example 3, when the binding between its nanoparticles and the waterproof layer and the fiber is weakened, the subsequent water washing shrinkage is also increased. When amino silicone oil is not added in Comparative Example 4, it may be that the addition of amino silicone oil not only plays the role of a softener, but also can improve the water washing resistance and have a certain effect on heat resistance, and has a significant improvement on the water washing shrinkage performance of wool-containing fabrics. Combined with the test results of Comparative Example 5, when only nano-silicon dioxide is used, the water washing shrinkage is relatively high.

[0057] 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 washable, waterproof and windproof wool jacket fabric, characterized in that: The invention comprises a fabric base material, wherein the front side of the fabric base material is formed by nylon and spandex coated yarns and the back side of the fabric is formed by wool, and the fabric base material is obtained after being dipped and finished with a fluorine-free waterproof finishing liquid.

2. The washable, waterproof and windproof wool jacket fabric according to claim 1, characterized in that: The nylon is 70D / 68F nylon matte FDY, the spandex coated yarn is 40D spandex coated yarn, and the wool is merino mercerized wool with an average diameter of 18-20um.

3. The washable, waterproof and windproof wool jacket fabric according to claim 1, characterized in that: The fluorine-free waterproof finishing liquid comprises 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, 0.1-0.3 parts of genipin and 8-10 parts of water.

4. The washable, waterproof and windproof wool jacket fabric according to claim 3, characterized in that: 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 ammonia modification.

5. The washable, waterproof and windproof wool jacket fabric according to claim 4, characterized in that: The nano-graphene oxide has a particle size of 40-80 nm; The nano silicon dioxide is selected from nano silicon dioxide with a mass ratio of 1: (0.2-0.3): (0.4-0.6) with a particle size of 5-10nm, a particle size of 20-30nm and a particle size of 45-60nm.

6. The washable, waterproof and windproof wool jacket fabric according to claim 3, 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 N-hydroxymethyl stearamide are added, then nano-silicon dioxide is added, then PAMAM and allylglycine are added for amination modification, then filtered and dried to obtain amino-modified nanoparticles.

7. The washable, waterproof and windproof wool jacket fabric according to claim 6, characterized in that: During the preparation of amino-modified nanoparticles, each raw material is 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.

8. The method for preparing the washable, waterproof and windproof wool jacket fabric according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, weaving nylon and spandex coated yarn and wool to form a fabric base material; S2. The prepared fabric substrate is subjected to padding treatment in a fluorine-free waterproof finishing liquid to prepare a washable, waterproof and windproof wool jacket fabric.

9. The method for preparing a washable, waterproof and windproof wool jacket fabric according to claim 8, characterized in that: When the material is immersed in the fluorine-free waterproof finishing liquid, the immersion temperature is 170-180°C, the rolling speed is 12-15m / min, and the rolling temperature is 90-120°C.

10. The method for preparing a washable, waterproof and windproof wool jacket fabric according to claim 8, characterized in that: In step S2, the fabric substrate is subjected to a napping process after the padding process.

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