Water-washing-resistant, waterproof and windproof woolen jacket fabric and preparation method thereof
By using a combination of nylon, spandex-covered yarn, and wool in the fabric of the rain jacket, along with fluorine-free waterproof finishing liquid and nanoparticle treatment, the problem of excessive shrinkage during the washing process of the rain jacket fabric has been solved, improving the waterproof, breathable, and warm performance and meeting the diverse needs of consumers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU DONGTU TEXTILE CO LTD
- Filing Date
- 2024-12-25
- Publication Date
- 2026-07-24
AI Technical Summary
Existing waterproof and windproof jacket fabrics are prone to excessive shrinkage during washing, affecting the wearing effect and comfort. At the same time, waterproof and windproof jacket products on the market cannot meet the diverse needs of consumers in terms of waterproofness, breathability, and warmth.
The fabric uses nylon and spandex covered yarns as the front side and wool as the reverse side. It is treated with a fluorine-free waterproof finishing liquid and combined with nano-graphene oxide and nano-silica modified particles to form a tight waterproof layer, which improves the fabric's wash resistance and windproof performance.
It significantly reduces the fabric's shrinkage rate by less than 1.5% after washing, improves water resistance and breathability, enhances the fabric's washability and lifespan, and provides a comfortable wearing experience.
Smart Images
Figure GDA0005212284610000101
Abstract
Description
Technical Field
[0001] This application relates to the field of worsted fabrics, and more specifically, it relates to a washable, waterproof, and windproof wool jacket fabric and its preparation method. Background Technology
[0002] With the improvement of people's living standards and the enhancement of health awareness, exercise has become an important part of many people's daily lives, especially outdoor sports. As one of the key pieces of equipment for outdoor sports, the performance of the fabric of the waterproof jacket directly affects the experience and comfort of the athlete.
[0003] The breathable fabric of outdoor jackets is popular among consumers because it keeps the body warm while providing comfort and breathability. However, there are some problems with outdoor jacket fabrics on the market that need to be addressed. The most prominent issue is washability. Currently, outdoor jacket fabrics are prone to excessive shrinkage during washing, typically exceeding 1.5%. This means that after multiple washes, the size of the jacket will shrink significantly, affecting the wearing effect and comfort. This problem limits the number of times outdoor jackets can be machine washed, causing inconvenience to consumers. On the other hand, with the rise of outdoor sports and lifestyles such as citywalking, consumers' demands for rain jackets have become more diversified. They hope that rain jackets not only have excellent waterproof, breathable and warm performance, but also meet the requirements of being lightweight, comfortable and simple. However, the rain jacket products on the market at present often have shortcomings in these aspects. For example, although hard-shell rain jackets have good protection performance, they are not very comfortable, while soft-shell rain jackets are more comfortable but have relatively reduced functions such as wind protection. 3-in-1 rain jackets are too cumbersome and inconvenient for daily wear, and cannot meet the needs of outdoor sports enthusiasts such as hiking and mountaineering, as well as consumers such as citywalkers and commuters for lightweight, comfortable and simple wear.
[0004] Given the above situation, there is an increasingly urgent need for waterproof and windproof clothing fabrics with higher washability and lower shrinkage after washing. It is imperative to improve the washability and dimensional stability of waterproof and windproof clothing fabrics to extend the product's lifespan and enhance wearing comfort. Summary of the Invention
[0005] To improve the washability and dimensional stability of waterproof and windproof wool waterproof and windproof jacket fabric, this application provides a washable, waterproof and windproof wool waterproof and windproof jacket fabric and its preparation method.
[0006] In a first aspect, this application provides a washable, waterproof, and windproof wool jacket fabric, employing the following technical solution: A washable, waterproof, and windproof wool jacket fabric includes a fabric substrate, which has a front side made of nylon and spandex covered yarns and a reverse side made of wool. The fabric substrate is obtained by impregnation and finishing with a fluorine-free waterproof finishing liquid.
[0007] By adopting the above technical solution, this application first uses nylon and spandex covered yarns 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 fabric's density and elasticity, helping to block wind penetration and improve windproof performance. Moreover, the addition of spandex makes the fabric more elastic, adaptable to the needs of sports, and provides a comfortable wearing experience. The reverse side is made of wool, which has excellent warmth and moisture retention, and also has wool with moderate stretch and tension. The resulting rain jacket fabric is windproof, elastic and delicate, and has good warmth and moisture retention as well as a soft and comfortable touch. Ultimately, the rain jacket fabric produced in this application has a higher quality feel and better warmth retention. The fabric can block rainwater while allowing sweat to evaporate, keeping the body dry. It has waterproof, windproof, warm, moisture-wicking and perspiration-absorbing functions. It can prevent cold air from entering and wick away moisture, keeping the wearer's body warm, dry, comfortable and lightweight, which is more suitable for the general public. More importantly, the waterproofing treatment uses a fluorine-free waterproofing finishing liquid, which is not only environmentally friendly, but also significantly improves its water resistance and greatly reduces its shrinkage rate after washing to less than 1.5%, thus enhancing its machine washability and extending its service life.
[0008] Optionally, the nylon is selected from 70D / 68F matte nylon FDY, the spandex covered yarn is selected from 40D spandex covered yarn, and the wool is selected from Merino mercerized wool with an average diameter of 18-20um.
[0009] By adopting the above technical solutions, 70D / 68F nylon matte FDY possesses high strength, high elongation, good abrasion resistance, and fatigue resistance. The matte treatment gives it a softer appearance and lower luster, making it suitable for outdoor clothing such as rain jackets. 40D spandex-covered yarn features high breaking elongation, high elastic recovery rate, and low elastic modulus, giving the fabric good elasticity and making it more comfortable and free to wear. Mercerized wool has good luster and softness, and its main characteristics are shrinkage resistance, machine washability, and pilling resistance. Its fibers have a smooth, soft, and delicate feel, making it suitable for the reverse side of underwear and outdoor clothing such as rain jackets to increase warmth and comfort.
[0010] The fabric in this application, composed of the aforementioned nylon and spandex covered yarns, has a dense front structure that effectively blocks wind and keeps the body warm. The addition of 40D spandex covered yarns gives the fabric good elasticity, making it more comfortable and adaptable to various sports activities. Merino mercerized wool, as the reverse side of the fabric, has good warmth retention. Furthermore, by using the aforementioned combination of coarse and fine yarns and a weft ratio of 2:1, this application can directly achieve a fabric where the reverse side is wool, and the front side is made of nylon and spandex covered yarns while the reverse side is wool.
[0011] Optionally, in the front fabric, nylon accounts for 80-90% and spandex covered yarn accounts for 10-20%.
[0012] Optionally, the fluorine-free waterproofing 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 ethylene tert-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.
[0013] By adopting the above technical solution, the waterproofing treatment in this application uses a fluorine-free waterproofing treatment, which adds a hydrocarbon polymer waterproofing agent to give the fabric a long-lasting waterproof function, forming a film on the fabric surface to prevent water from penetrating into the fabric interior, thereby protecting the fabric substrate, slowing down the impact of water, and reducing the shrinkage rate after washing. In addition, this application also adds ethylene tert-carbonate and ethylene glycol dimethacrylate. Ethylene glycol dimethacrylate acts as a crosslinking agent to form chemical bonds with the fabric fibers. At the same time, the unsaturated double bonds between ethylene glycol dimethacrylate and ethylene tert-carbonate form chemical reactions, thus enhancing the waterproofing effect. On the one hand, the binding force between the fibers and the tertiary carbon groups form a great steric hindrance relationship, which significantly improves its water resistance. The addition of penetrant can improve the penetration of fluorine-free waterproof finishing liquid in the fabric fibers, so that the waterproofing agent can be more evenly distributed and form a more stable waterproof layer. As a softener, amino silicone oil can improve the hand 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 water resistance.
[0014] Furthermore, the nylon base material of this 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 with the fiber base material. This cross-linking can further make the fabric fibers more tightly arranged, which helps to reduce the shrinkage rate during washing. Ultimately, the waterproof fabric in this application has a lower shrinkage rate after washing.
[0015] Optionally, the amino-modified nanoparticles are prepared by ammoniation modification of a mixture of nano-graphene oxide and nano-silica in a mass ratio of 1:(0.3-0.4).
[0016] By adopting the above technical solution, the graphene oxide in this application has a unique two-dimensional sheet structure and abundant 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, while the oxygen-containing functional groups can form a tight bond with the fabric fibers to improve the water barrier ability. Moreover, the barrier effect it forms can reduce the shrinkage and deformation of the fabric during the washing process. Furthermore, its particle filling further reduces the shrinkage and deformation of the fibers, thereby ultimately reducing the water shrinkage performance of the waterproof jacket fabric.
[0017] Optionally, the nano-graphene oxide has a particle size of 40-80 nm. The nano-silica is selected from nano-silica with a mass ratio of 1:(0.2-0.3):(0.4-0.6) and a particle size of 5-10nm, 20-30nm, and 45-60nm.
[0018] By adopting the above technical solution, this application combines nano-graphene oxide and nano-silica with different particle sizes, especially the nano-silica with different particle sizes. In this way, the gaps in the graphene oxide sheets are filled by nano-silica, resulting in better waterproof effect. Moreover, compared with continuous distribution, the distribution method in this application can not only better fill between the fabric fibers, helping to reduce the deformation and shrinkage of the fabric during washing, but also the multi-layer distribution can better adapt to the deformation during the washing process, thereby further reducing the shrinkage rate. Ultimately, the fabric of this application has a lower washing shrinkage rate and better breathability.
[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-hydroxymethylstearamide are added, followed by nano-silica, then PAMAM and allylglycine are added for amination modification treatment, then filtered and dried to obtain amino-modified nanoparticles.
[0020] By adopting the above technical solution, this application first mixes nano-graphene oxide with aminosilane to form aminated nano-graphene oxide, and then adds nano-silica for a second ammoniation reaction. Distributed ammoniation helps improve the ammoniation modification effect on both nano-graphene oxide and nano-silica materials, while avoiding agglomeration during the process. Furthermore, this application first performs ammoniation modification with aminosilane and N-hydroxymethyl stearamide. After aminosilane modification, the surface hydrophobicity of graphene oxide is enhanced, which helps improve its water resistance. It also enhances the interfacial adhesion between fibers and modified nanoparticles, thus reducing fabric shrinkage or deformation during washing. N-hydroxymethyl stearamide, as a hydroxymethyl waterproofing agent, can not only... As a fiber softener, it can also act as a waterproofing agent, further reducing the washing shrinkage rate. After the addition of nano-silica, PAMAM and allyl glycine are added. The addition of PAMAM dendritic macromolecules not only helps to introduce amino groups to improve the binding between the nanoparticles and the fibers, thereby reducing shedding and washing shrinkage, but also helps to improve the dispersibility and stabilizer of nanoparticles in the waterproofing agent, thus contributing to the uniformity of the fabric distribution. The introduction of unsaturated functional groups in allyl amino acids can form chemical bonds with ethylene tert-carbonate in the waterproofing finishing liquid. In this way, the final waterproofing finishing liquid can form a tighter waterproof film, which not only improves the waterproofness, but also has a certain fixing and limiting effect on the fibers, thereby better reducing the waterproof shrinkage performance.
[0021] Optionally, during the preparation of amino-modified nanoparticles, the following raw materials are added in parts by weight: 10-20 parts of nano-graphene oxide, 30-40 parts of water, 3-5 parts of aminosilane, 1-3 parts of N-hydroxymethylstearamide, 0.5-1 parts of PAMAM and 0.8-1.5 parts of allyl glycine.
[0022] Secondly, this application provides a method for preparing a washable, waterproof, and windproof wool jacket fabric, using the following technical solution: A method for preparing a water-resistant, waterproof, and windproof wool jacket fabric includes the following steps: S1. Nylon and spandex covered yarns and wool are woven together to form a fabric substrate; S2. The obtained fabric substrate is immersed and padded in a fluorine-free waterproof finishing liquid to obtain 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 industrialize.
[0024] Optionally, in step S1, during the weaving process, 70D / 68F nylon matte FDY + 40D spandex covered yarn is used as the front yarn, and 48 / 2 worsted mercerized wool double yarn is used as the back yarn. After interweaving, the front of the fabric made of nylon + spandex covered yarn and the back of the fabric made of wool are formed. During the interweaving process, the sum of nylon and spandex covered yarn in the weft direction is arranged with wool in a ratio of 1:2 so that the wool yarn appears on the back.
[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 wool double yarn is used as the back yarn. During the interlacing process, the nylon and spandex covered yarns in the weft direction are arranged with wool in a 1:2 ratio to ensure that the wool yarn mainly appears on the back side of the fabric.
[0026] Optionally, in step S1, during the weaving process, nylon and spandex covering yarns are first woven in proportion to obtain the first fabric layer. The wool is woven to create the second fabric layer; The first and second fabric layers are hot-pressed together with polyurethane hot melt adhesive to obtain the fabric substrate. The hot-pressing pressure is 15-25N.
[0027] Optionally, during the immersion and rolling process in the fluorine-free waterproof finishing liquid, the immersion temperature is 170-180℃, the rolling speed is 12-15m / min, and the rolling temperature is 90-120℃.
[0028] Optionally, in step S2, the fabric substrate undergoes a napping process after impregnation treatment.
[0029] By adopting the above technical solution, the wool side of the fabric substrate is napped to make the fabric feel better and have better warmth retention. The fabric can block rainwater while allowing sweat to evaporate, keeping the body dry.
[0030] In summary, this application has the following beneficial effects: 1. This application first uses nylon and spandex covered yarns 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 fabric's density and elasticity, helping to block wind penetration and improve windproof performance. Moreover, the addition of spandex makes the fabric more elastic, adaptable to the needs of sports, and provides a comfortable wearing experience. The reverse side is made of wool, which has excellent warmth and moisture retention, and also has wool with moderate stretch. The resulting rain jacket fabric is windproof, elastic and delicate, and has good warmth and moisture retention as well as a soft and comfortable touch. 2. The waterproofing treatment in this application uses a fluorine-free waterproofing finishing liquid, which is not only environmentally friendly, but also significantly improves its water resistance and greatly increases its water washing shrinkage rate to less than 1.5%, thereby improving its machine washing function and extending its service life. Detailed Implementation
[0031] The following detailed description of this application is provided in conjunction with the embodiments. It should be noted that: unless otherwise specified, the conditions in the following embodiments are performed under conventional conditions or conditions recommended by the manufacturer. Unless otherwise specified, the raw materials used in the following embodiments are all from commercially available sources.
[0032] In the following examples, the 40D spandex covered yarn is specifically selected from 40D+70 spandex covered yarn made of 88% nylon and 12% spandex.
[0033] In the following preparation examples, the hydrocarbon polymer waterproofing agent specifically selected is WSA03 fluorine-free waterproofing agent, which is a polymer emulsion waterproofing agent based on an acrylic system.
[0034] The following preparation examples illustrate the preparation of fluorine-free waterproof finishing solutions. Preparation Example 1 A method for preparing a fluorine-free waterproof finishing liquid includes the following steps: 1) Preparation of amino-modified nanoparticles: 15 kg of nano-graphene oxide was dispersed in 35 kg of water and mixed. Then, 4 kg of aminosilane KH-550 and 2 kg of N-hydroxymethyl stearamide were added and stirred for 15 min. Then, nano-silica was added and the mixture was heated to 55 °C. Then, 0.7 kg of PAMAM and 1.2 kg of allyl glycine were added and treated for 35 min for amination modification. After filtration and drying, amino-modified nanoparticles were obtained. The mass ratio of nano-graphene oxide to nano-silica is 1:0.3, and the particle size of nano-graphene oxide is 40-80nm. The nano-silica is selected with particle sizes of 5-10nm, 20-30nm, and 45-60nm, and the mass ratio of nano-silica with particle sizes of 5-10nm, 20-30nm, and 45-60nm is 1:0.2:0.5. S2. Preparation of fluorine-free waterproof finishing solution: 1.2 kg of ethylene tert-carbonate, 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. The mixture was then 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. After stirring for 2.5 h, the mixture was cooled to obtain a fluorine-free waterproof finishing liquid.
[0035] Preparation Example 2 A method for preparing a fluorine-free waterproof finishing liquid includes the following steps: 1) Preparation of amino-modified nanoparticles: 10 kg of nano-graphene oxide was dispersed in 30 kg of water and mixed. Then, 3 kg of aminosilane KH-550 and 1 kg of N-hydroxymethyl stearamide were added and stirred for 10 min. Then, nano-silica was added and the mixture was heated to 55 °C. Then, 0.5 kg of PAMAM and 0.8 kg of allyl glycine were added and treated for 30 min for amination modification. After filtration and drying, amino-modified nanoparticles were obtained. The mass ratio of nano-graphene oxide to nano-silica is 1:0.3, and the particle size of nano-graphene oxide is 40-80nm. The nano-silica is selected with particle sizes of 5-10nm, 20-30nm, and 45-60nm, and the mass ratio of nano-silica with particle sizes of 5-10nm, 20-30nm, and 45-60nm is 1:0.2:0.4. S2. Preparation of fluorine-free waterproof finishing solution: 0.8 kg of ethylene tert-carbonate, 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. The mixture was then heated 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. After stirring for 2 hours, the mixture was cooled to obtain a fluorine-free waterproof finishing liquid.
[0036] Preparation Example 3 A method for preparing a fluorine-free waterproof finishing liquid includes the following steps: 1) Preparation of amino-modified nanoparticles: 20 kg of nano-graphene oxide was dispersed in 40 kg of water and mixed. Then, 5 kg of aminosilane KH-550 and 3 kg of N-hydroxymethyl stearamide were added and stirred for 20 min. Then, nano-silica was added and the mixture was heated to 60 °C. Then, 1 kg of PAMAM and 1.5 kg of allyl glycine were added and treated for 40 min for amination modification. After filtration and drying, amino-modified nanoparticles were obtained. The mass ratio of nano-graphene oxide to nano-silica is 1:0.4, and the particle size of nano-graphene oxide is 40-80nm. The nano-silica is selected with particle sizes of 5-10nm, 20-30nm, and 45-60nm, and the mass ratio of nano-silica with particle sizes of 5-10nm, 20-30nm, and 45-60nm is 1:0.3:0.6. S2. Preparation of fluorine-free waterproof finishing solution: 1.5 kg of ethylene tert-carbonate, 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. The mixture was then heated to 80°C and 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. After stirring for 3 hours, the mixture was 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-silica is selected as a continuous-level nano-silica with a particle size of 20-40nm.
[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-silica is selected as a continuous-level nano-silica with a particle size of 5-60nm.
[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 in step 1), when preparing amino-modified nanoparticles, nano-graphene oxide and nano-silica are directly added and dispersed in water in proportion, and then after heating to 55°C, aminosilane, N-hydroxymethylstearamide, PAMAM and allylglycine are directly added and treated for 50 min, and then filtered and dried.
[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 in step 1), when preparing amino-modified nanoparticles, nano-graphene oxide and nano-silica are directly added and dispersed in water in proportion, and then after heating to 55°C, aminosilane and N-hydroxymethylstearamide are directly added for treatment for 50 min, followed by filtration and drying. 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 in equal amounts with a mixture of nano-graphene oxide and nano-silica, and the mass ratio of nano-graphene oxide to nano-silica 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 ethylene tert-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 genipin is not 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 the amino-modified nanoparticles are replaced by an equal amount of nano-silica.
[0048] Example 1 A method for preparing a water-resistant, waterproof, and windproof wool jacket fabric includes the following steps: S1. The fabric substrate is formed by weaving nylon and spandex covered yarn and wool. The specific operation is as follows: 70D / 68F nylon matte FDY + 40D spandex covered yarn is used as the front yarn, and 48 / 2 worsted mercerized wool double yarn is used as the back yarn. After interweaving, the front of the fabric is formed by nylon + spandex covered yarn and the back of the fabric is formed by wool. During the interweaving process, the sum of nylon and spandex covered yarn and wool in the weft direction are arranged in a ratio of 1:2 so that the wool yarn appears on the back side. The proportion of nylon in the front yarn is 80% and the proportion of spandex covered yarn is 20%. S2. The fluorine-free waterproof finishing liquid prepared in Preparation Example 1 is diluted by 8-10 times by mass and then added to the fabric substrate prepared in step S1 for impregnation treatment (specifically including impregnation, rolling and drying). During impregnation, the impregnation temperature is 175℃, the rolling speed is 13m / min, and the rolling temperature is 100℃. After impregnation treatment, a napping treatment (pilling-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 as follows: 70D / 68F nylon matte FDY and 40D spandex covered yarn are woven to obtain a first fabric layer, in which nylon accounts for 80% and spandex covered yarn accounts for 20%; then wool is woven to obtain a second fabric layer. Then, polyurethane hot melt adhesive is applied to the first fabric layer, with an application rate of 10g / m². 2 Then, under a pressure of 20N, the second fabric layer and the first fabric layer are hot-pressed together to obtain the fabric substrate, with nylon + spandex as the front side and wool as the back side.
[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 obtained in Preparation Example 2, and the immersion temperature in step S2 is 170℃, the rolling speed is 12m / min, and the rolling temperature is 90℃.
[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 obtained in Preparation Example 3, and the immersion temperature in step S2 is 180℃, the rolling speed is 15m / min, and the rolling temperature is 120℃.
[0052] Examples 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 selected from the fluorine-free waterproof finishing liquids prepared in 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 liquids prepared in Comparative Preparation Examples 1-5.
[0054] Performance testing The fabrics prepared in the embodiments and comparative examples of this application were prepared according to GB / T 8628-2013 "Preparation, marking and measurement of fabric and garment specimens for determination of dimensional change in textiles", GB / T 8629-2017 "Washing and drying procedures for textile testing", and GB / T 8630-2013 "Determination of dimensional change in textiles after washing and drying". 100cm×100cm specimens were prepared and measured after washing, and the average shrinkage rate was calculated. In addition, the fabric substrate without waterproofing treatment was used as a blank control group and the above tests were also performed. The test results are shown in Table 1 below. At the same time, the air permeability was tested according to GB / T 5453-1997 "Determination of air permeability of textiles". 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 this application has a water washing shrinkage rate of 8-10% compared to traditional fabrics. The water washing shrinkage rate of the fabrics in Examples 1-4 of this application is less than 3%, which greatly reduces the water washing shrinkage rate, improves the water washing shrinkage and deformation phenomenon, and has excellent breathability. Combining the test results of Examples 2, 4, and 5, when the nano-silica uses a continuous particle size, its water washing shrinkage is increased compared to Example 2, while its air permeability is reduced. Combining the test results of Examples 2, 6, and 7, when amino-modified nano-graphene oxide and nano-silica, the water washing shrinkage is significantly increased when allyl glycine is not added to the amino-modifying agent, and it is also increased when PAMAM is not added. Combining the test results of Example 8, when amino-modification is performed by directly modifying graphene oxide and silica together at one time, the water washing shrinkage is significantly increased. The staged modification 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-hydroxymethylstearamide are used for treatment in Example 9, the water washing shrinkage is also significantly increased. When the modification method in Example 2 is used, the water washing shrinkage is even lower.
[0056] Referring to the test results of Example 1 and Comparative Example 1, when nano-graphene oxide and nano-silica were added directly without modification, their bonding effect with the fiber was limited, and the washing shrinkage rate was significantly increased. Combining the test results of Comparative Example 2, when ethylene tert-carbonate was not added to the waterproofing agent, the washing shrinkage rate was high. The introduction of tert-carbon groups in ethylene tert-carbonate helps to improve the waterproof performance of the fabric, thereby reducing the washing shrinkage rate. Combining the test results of Comparative Example 3, when genipin was not added, the bonding between the nanoparticles and the waterproof layer and the fiber was weakened, and the subsequent washing shrinkage rate also increased. When amino silicone oil was not added in Comparative Example 4, it is possible that the addition of amino silicone oil not only acts as a softener, but also improves the washing resistance and heat resistance, and has a significant effect on improving the washing shrinkage performance of wool-containing fabrics. Combining the test results of Comparative Example 5, when only nano-silica was used, the washing shrinkage rate was relatively high.
[0057] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.
Claims
1. A water-resistant, waterproof, and windproof wool jacket fabric, characterized in that, The fabric substrate consists of a front side of a fabric made of nylon and spandex covered yarns and a reverse side of a fabric made of wool. The fabric substrate is obtained by padding and finishing with a fluorine-free waterproof finishing liquid. The fluorine-free waterproofing 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 ethylene tert-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; The amino-modified nanoparticles are prepared by ammoniation modification of a mixture of nano-graphene oxide and nano-silica in a mass ratio of 1:(0.3-0.4). The amino-modified nanoparticles were prepared by the following method: first, nano-graphene oxide was dispersed in water and mixed, then aminosilane and N-hydroxymethylstearamide were added, followed by nano-silica, then PAMAM and allylglycine were added for amination modification, then filtered and dried to obtain amino-modified nanoparticles.
2. The water-resistant, waterproof, and windproof wool jacket fabric according to claim 1, characterized in that: The nylon is selected from 70D / 68F matte nylon FDY, the spandex covered yarn is selected from 40D spandex covered yarn, and the wool is selected from Merino mercerized wool with an average diameter of 18-20um.
3. The water-resistant, waterproof, and windproof wool jacket fabric according to claim 1, characterized in that: The particle size of the nano-graphene oxide is 40-80 nm; The nano-silica is selected from nano-silica with a mass ratio of 1:(0.2-0.3):(0.4-0.6) and a particle size of 5-10nm, 20-30nm, and 45-60nm.
4. The water-resistant, waterproof, and windproof wool jacket fabric according to claim 1, characterized in that: In the preparation of amino-modified nanoparticles, the raw materials are added in the following proportions by weight: 10-20 parts nano-graphene oxide, 30-40 parts water, 3-5 parts aminosilane, 1-3 parts N-hydroxymethylstearamide, 0.5-1 part PAMAM and 0.8-1.5 parts allyl glycine.
5. A method for preparing a washable, waterproof, and windproof wool jacket fabric according to any one of claims 1-4, characterized in that: Includes the following steps: S1. Nylon and spandex covered yarns and wool are woven together to form a fabric substrate; S2. The obtained fabric substrate is immersed and padded in a fluorine-free waterproof finishing liquid to obtain a washable, waterproof, and windproof wool jacket fabric.
6. The method for preparing a washable, waterproof, and windproof wool jacket fabric according to claim 5, characterized in that: When the fabric substrate is immersed in a fluorine-free waterproof finishing solution, the immersion temperature is 170-180℃, the rolling speed is 12-15m / min, and the rolling temperature is 90-120℃.
7. The method for preparing a washable, waterproof, and windproof wool jacket fabric according to claim 5, characterized in that: In step S2, the fabric substrate undergoes a napping process after impregnation.