A wind and rain proof treatment method for down jacket fabric

Abstract

The invention discloses a method for treating a down jacket fabric with wind and rainproof, comprising a down jacket fabric, wherein the down jacket fabric is blended with polyamide fiber and cotton fiber, and comprises the following steps: (1) placing the down jacket fabric in an impregnation solution for 10-15 minutes, then adding a maleic anhydride grafted compatibilizer, an ethylene-octene copolymer and talcum powder to the impregnation solution, pre-baking and baking, and drying at 110-150° C. after sufficient water washing to obtain a modified down jacket fabric. The invention adopts 3-mercaptopropylmethyldimethoxysilane as a raw material, and configures the impregnation solution with maleic anhydride grafted compatibilizer, an ethylene-octene copolymer and talcum powder, and after impregnating the down jacket fabric and drying, the modified down jacket fabric obtained has certain softness and lightness compared with the untreated down jacket fabric, and has strong mechanical properties, so that the toughness and impact resistance of the fabric are enhanced, so that it is not easy to crack or age.

Description

Technical Field

[0001] The invention relates to the field of down jacket fabric processing, and more specifically, to a method for wind and rainproof processing of down jacket fabric. Background Art

[0002] At present, with the progress of society and the improvement of living standards, people have higher and higher requirements on the quality and performance of clothing fabrics, and more and more textiles have gradually acquired properties such as waterproof, shrinkage-proof, anti-fouling and flame-retardant.

[0003] In the prior art, the technology in the preparation of functional fabrics can be roughly divided into:

[0004] (1) While maintaining the original fabric properties, more coatings are added, such as waterproof coating, breathable coating and flame retardant coating. Although this technology gives the fabric certain functions, it will make the fabric less soft, less breathable and less comfortable after long-term use. It is also easy to harden, age and crack when exposed to high temperatures, and has a short service life.

[0005] (ii) By coating the fabric substrate layer by layer, this method has a certain loss of air permeability, softness and lightness after lamination, and it is difficult to become the mainstream preparation method in the market. Therefore, in order to solve the shortcomings of the above-mentioned prior art, we propose a wind and rainproof treatment method for down jacket fabrics. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a method for treating down jacket fabrics with wind and rainproof properties, wherein the down jacket fabrics are first modified and then treated with a water-repellent finishing liquid to achieve better water repellency on the inside and outside, better moisture permeability and air permeability, and better mechanical properties.

[0007] To achieve the above object, the present invention provides the following technical solution: A method for treating down jacket fabrics with wind and rainproof, comprising down jacket fabrics, wherein the down jacket fabrics are blended from polyamide fibers and cotton fibers, and comprising the following steps:

[0008] (1) placing the down jacket fabric in an impregnation liquid for 10-15 minutes, then adding a maleic anhydride grafted compatibilizer, an ethylene-octene copolymer and talcum powder into the impregnation liquid, pre-baking and baking, and drying at 110-150° C. after sufficient water washing to obtain a modified down jacket fabric;

[0009] (2) The modified down jacket fabric is immersed in a water-repellent finishing liquid for 10-15 minutes, washed with water and dried to complete the treatment.

[0010] In a preferred embodiment, the impregnation solution in step (1) comprises, by weight, 3-5 parts of 3-mercaptopropylmethyldimethoxysilane, 0.5-1 parts of distilled water, 0.5-1 parts of anhydrous ethanol, 0.5-1 parts of acetic acid, 0.5-1 parts of a catalyst, 0.5-1 parts of a maleic anhydride grafted compatibilizer, 2-3 parts of an ethylene-octene copolymer and 1-2 parts of talc. The above components are mixed and ultrasonically vibrated for 10 to 15 minutes to obtain.

[0011] In a preferred embodiment, the water-repellent finishing liquid in step (2) comprises, by weight, 20-30 parts of vinyl triethoxysilane, 15-20 parts of ethyl acrylate, 15-20 parts of butyl acrylate, 2-5 parts of ammonium persulfate, 1-2 parts of softener, 2-5 parts of deionized water and 3-5 parts of emulsifier. The above components are mixed and emulsified, stirred for 15 minutes, and then 500 mg / L of silver nitrate is added and stirred to obtain.

[0012] In a preferred embodiment, the water-repellent finishing liquid further includes a flame retardant, and the flame retardant is one of aluminum hydroxide, magnesium hydroxide, antimony trioxide, ammonium chloride and zinc borate.

[0013] In a preferred embodiment, the water-repellent finishing liquid further includes an additive, and the additive is any one of sodium bicarbonate and ammonium bicarbonate.

[0014] In a preferred embodiment, the impregnation liquid in step (1) comprises, by weight, 3-5 parts of 3-mercaptopropylmethyldimethoxysilane, 0.5-1 parts of distilled water, 0.5-1 parts of anhydrous ethanol, 0.5-1 parts of acetic acid, 0.5-1 parts of a catalyst, 0.5-1 parts of a maleic anhydride grafted compatibilizer, 2-3 parts of an ethylene-octene copolymer and 1-2 parts of talc, and the above components are mixed and stirred to obtain.

[0015] In a preferred embodiment, in step (1), the pre-baking temperature is controlled to be 50-80°C, the pre-baking time is controlled to be 3-9 minutes, the baking temperature is controlled to be 110-150°C, and the baking time is controlled to be 3-5 minutes.

[0016] Technical effects and advantages of the present invention:

[0017] (1) In the present invention, 3-mercaptopropylmethyldimethoxysilane is used as a raw material, and maleic anhydride grafted compatibilizer, ethylene-octene copolymer and talcum powder are prepared into an impregnation liquid, and the down jacket fabric is impregnated and dried. The modified down jacket fabric obtained has certain softness and lightness compared with the untreated down jacket fabric, and has stronger mechanical properties, so that the toughness and impact resistance of the fabric are enhanced, so that it is not easy to crack and age, and the service life is increased;

[0018] (2) In the present invention, the modified down jacket fabric is immersed in a water-repellent finishing liquid, wherein the water-repellent finishing liquid is composed of vinyl triethoxysilane, ethyl acrylate, butyl acrylate, ammonium persulfate, softener, deionized water, emulsifier, additives and flame retardant. Compared with the untreated down jacket fabric, after the micropores are formed, the down jacket fabric not only has increased breathability and flame retardant effect, but also can be water-repellent treated to make it more water-resistant and have a certain antibacterial effect while being water-repellent. In addition, the silver ions and metal elements such as aluminum and magnesium contained in the fabric make the fabric have excellent conductivity, antistatic, electromagnetic shielding and antibacterial properties, meeting people's demand for high quality and high performance of clothing fabrics. DETAILED DESCRIPTION

[0019] Example 1

[0020] The present invention provides a method for treating down jacket fabrics against wind and rain, comprising down jacket fabrics, wherein the down jacket fabrics are blended from polyamide fibers and cotton fibers, and the treating steps are as follows:

[0021] (1) 3 parts by mass of 3-mercaptopropylmethyldimethoxysilane, 0.5 parts by mass of distilled water, 0.5 parts by mass of anhydrous ethanol, 0.5 parts by mass of acetic acid and 0.5 parts by mass of a catalyst were mixed and shaken for 2 hours to prepare an impregnation liquid, and then the down jacket fabric was placed in the impregnation liquid for 10 minutes;

[0022] (2) adding 0.5 parts by weight of maleic anhydride grafted compatibilizer, 2 parts by weight of ethylene-octene copolymer and 1 part by weight of talc to the impregnation solution, and pre-baking and baking were performed, wherein the pre-baking temperature was controlled at 50°C, the pre-baking time was controlled at 3 min, the baking temperature was controlled at 110°C, the baking time was controlled at 3 min, and after sufficient water washing and drying at 110°C, a modified down jacket fabric was obtained;

[0023] (3) 20 parts by mass of vinyl triethoxysilane, 15 parts by mass of ethyl acrylate, 15 parts by mass of butyl acrylate, 2 parts by mass of ammonium persulfate, 1 part by mass of a softener, 2 parts by mass of deionized water, 3 parts by mass of an emulsifier and aluminum hydroxide were mixed and emulsified, stirred for 15 minutes, and then 500 mg / L of silver nitrate and aluminum hydroxide were added and mixed and stirred to obtain a water-repellent finishing liquid;

[0024] (4) Immerse the modified down jacket fabric in step (2) in the water-repellent finishing liquid obtained in step (3) for 10 minutes, wash and dry, and then complete the treatment.

[0025] Example 2

[0026] The present invention provides a method for treating down jacket fabrics against wind and rain, comprising down jacket fabrics, wherein the down jacket fabrics are blended from polyamide fibers and cotton fibers, and the treating steps are as follows:

[0027] (1) First, 4 parts by mass of 3-mercaptopropylmethyldimethoxysilane, 0.75 parts by mass of distilled water, 0.75 parts by mass of anhydrous ethanol, 0.75 parts by mass of acetic acid and 0.75 parts by mass of a catalyst were mixed, shaken for 3 hours, and prepared into an impregnation liquid, and then the down jacket fabric was placed in the impregnation liquid for 12.5 minutes;

[0028] (2) adding 0.75 parts by weight of maleic anhydride grafted compatibilizer, 2.5 parts by weight of ethylene-octene copolymer and 1.5 parts by weight of talc to the impregnating solution, pre-baking and baking, the pre-baking temperature is controlled at 65°C, the pre-baking time is controlled at 6 min, the baking temperature is controlled at 130°C, the baking time is controlled at 4 min, and after sufficient water washing and drying at 130°C, a modified down jacket fabric is obtained;

[0029] (3) 25 parts by mass of vinyl triethoxysilane, 17.5 parts by mass of ethyl acrylate, 17.5 parts by mass of butyl acrylate, 3.5 parts by mass of ammonium persulfate, 1.5 parts by mass of softener, 3.5 parts by mass of deionized water, 4 parts by mass of emulsifier and ammonium bicarbonate were mixed and emulsified, stirred for 15 minutes, and then 500 mg / L of silver nitrate and magnesium hydroxide were added, mixed and stirred to obtain a water-repellent finishing liquid;

[0030] (4) Immerse the modified down jacket fabric in step (2) in the water-repellent finishing liquid obtained in step (3) for 12.5 minutes, wash and dry, and then complete the treatment.

[0031] Example 3

[0032] The present invention provides a method for treating down jacket fabrics against wind and rain, comprising down jacket fabrics, wherein the down jacket fabrics are blended from polyamide fibers and cotton fibers, and the treating steps are as follows:

[0033] (1) First, 5 parts by weight of 3-mercaptopropylmethyldimethoxysilane, 1 part by weight of distilled water, 1 part by weight of anhydrous ethanol, 1 part by weight of acetic acid, and 1 part by weight of a catalyst were mixed, shaken for 4 hours to prepare an impregnation solution, and then the down jacket fabric was placed in the impregnation solution for 15 minutes;

[0034] (2) adding 1 part by weight of maleic anhydride grafted compatibilizer, 3 parts by weight of ethylene-octene copolymer and 2 parts by weight of talc to the impregnation solution, pre-baking and baking, the pre-baking temperature is controlled at 80°C, the pre-baking time is controlled at 9 minutes, the baking temperature is controlled at 150°C, the baking time is controlled at 5 minutes, and after sufficient water washing and drying at 150°C, a modified down jacket fabric is obtained;

[0035] (3) 30 parts by mass of vinyl triethoxysilane, 20 parts by mass of ethyl acrylate, 20 parts by mass of butyl acrylate, 5 parts by mass of ammonium persulfate, 2 parts by mass of a softener, 5 parts by mass of deionized water, 5 parts by mass of an emulsifier and sodium bicarbonate were mixed and emulsified, stirred for 15 minutes, and then 500 mg / L of silver nitrate and antimony trioxide were added, mixed and stirred to obtain a water-repellent finishing liquid;

[0036] (4) Immerse the modified down jacket fabric in step (2) in the water-repellent finishing liquid obtained in step (3) for 15 minutes, wash and dry, and then complete the treatment.

[0037] Comparative Example 1

[0038] The present invention provides a method for treating down jacket fabrics against wind and rain, comprising down jacket fabrics, wherein the down jacket fabrics are blended from polyamide fibers and cotton fibers, and the treating steps are as follows:

[0039] (1) 20-30 parts by weight of vinyl triethoxysilane, 15-20 parts by weight of ethyl acrylate, 15-20 parts by weight of butyl acrylate, 2-5 parts by weight of ammonium persulfate, 2-3 parts by weight of a softener, 2-5 parts by weight of deionized water, 3-5 parts by weight of an emulsifier and ammonium bicarbonate are mixed and emulsified, stirred for 15 minutes, and then 500 mg / L of silver nitrate and magnesium hydroxide are added, mixed and stirred to obtain a water-repellent finishing liquid;

[0040] (2) Immersing the unmodified down jacket fabric in the water-repellent finishing liquid obtained in step (1), with the immersion time controlled to be 10 to 15 minutes, to complete the treatment.

[0041] Comparative Example 2

[0042] The present invention provides a method for treating down jacket fabrics against wind and rain, comprising down jacket fabrics, wherein the down jacket fabrics are blended from polyamide fibers and cotton fibers, and the treating steps are as follows:

[0043] (1) 3-5 parts by weight of 3-mercaptopropylmethyldimethoxysilane, 0.5-1 parts by weight of distilled water, 0.5-1 parts by weight of anhydrous ethanol, 0.5-1 parts by weight of acetic acid and 0.5-1 parts by weight of a catalyst are mixed, shaken for 2-4 hours to prepare an impregnation liquid, and then ordinary down jacket fabric is placed in the impregnation liquid for 10-15 minutes;

[0044] (2) 0.5-1 parts by weight of maleic anhydride grafted compatibilizer, 2-3 parts by weight of ethylene-octene copolymer and 1-2 parts by weight of talc are added to the impregnation solution for pre-baking and baking. The pre-baking temperature is controlled at 50-80°C, the pre-baking time is controlled at 3-9 minutes, the baking temperature is controlled at 110-150°C, and the baking time is controlled at 3-5 minutes. After being fully washed with water and dried at 110-150°C, a modified down jacket fabric is obtained, and the treatment is completed.

[0045] In order to verify the effects of the present invention, the following experiments were conducted on the embodiments and comparative examples.

[0046] 1. For the fabrics prepared in Examples 1-3 and Comparative Examples 1-2, the contact angle test was performed using an OCA40 fully automatic single fiber contact angle meter, and 5 measurements were made at different positions of the same sample, and the average value was taken. The contact angle test was performed on both sides of the fabric respectively; wherein, the larger the contact angle, the better the water repellency.

[0047] Take samples of the same area and use GB / T 3923.1~2013 "Determination of air permeability of textile fabrics" and GB / T16928~1997 "Determination of moisture permeability of textile fabrics";

[0048] The same area was taken to measure its weight, and the softness of its inner surface was measured by human senses, with an index of 0-10 from hard to soft. The results are shown in Table 1 below.

[0049]

[0050] 2. For the fabrics prepared in Examples 1-3 and Comparative Examples 1-2, performance tests were performed according to GB / T 2791-1995 "Determination of peeling rate of textiles", GB / T 3923.1-2013 "Determination of tensile properties of textile fabrics", GB / T 21196.2-2007 "Determination of abrasion resistance of textiles", and GB / T 3923.1-2013 "Determination of elongation at break of textiles". The specific test results are shown in Table 2 below.

[0051] project Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Peel force / N / cm 92.52 93.12 92.82 84.42 83.62 Wear resistance 492 494 492 491 491 Elongation at break 409.62 408.51 409.41 357.42 356.42

[0052] It can be seen from the above table that, under the same samples and the same conditions, the present invention first modifies the down jacket fabric and then treats the modified down jacket fabric with a water-repellent finishing liquid. Compared with the ordinary down jacket fabric treated with a water-repellent finishing liquid or the down jacket fabric subjected to a single modification treatment, the fabric has better water repellency on the inside and outside, better moisture permeability and air permeability, and better mechanical properties.

[0053] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for treating down jacket fabrics with wind and rainproof, comprising down jacket fabrics, wherein the down jacket fabrics are blended from polyamide fibers and cotton fibers, and characterized in that: The steps include: (1) placing the down jacket fabric in an impregnation liquid for 10-15 minutes, then adding a maleic anhydride grafted compatibilizer, an ethylene-octene copolymer and talcum powder into the impregnation liquid, pre-baking and baking, and drying at 110-150° C. after sufficient water washing to obtain a modified down jacket fabric; The impregnation solution in step (1) comprises, by weight, 3-5 parts of 3-mercaptopropylmethyldimethoxysilane, 0.5-1 parts of distilled water, 0.5-1 parts of anhydrous ethanol, 0.5-1 parts of acetic acid, 0.5-1 parts of a catalyst, 0.5-1 parts of a maleic anhydride grafted compatibilizer, 2-3 parts of an ethylene-octene copolymer and 1-2 parts of talc. The above components are mixed and ultrasonically vibrated for 10 to 15 minutes to obtain; (2) immersing the modified down jacket fabric in a water-repellent finishing liquid for 10-15 minutes, washing and drying, and then completing the treatment; The water-repellent finishing liquid in step (2) comprises, by weight, 20-30 parts of vinyl triethoxysilane, 15-20 parts of ethyl acrylate, 15-20 parts of butyl acrylate, 2-5 parts of ammonium persulfate, 1-2 parts of softener, 2-5 parts of deionized water and 3-5 parts of emulsifier. The above components are mixed and emulsified, stirred for 15 minutes, and then 500 mg / L of silver nitrate is added and stirred to obtain.

2. A method for treating down jacket fabrics against wind and rain according to claim 1, characterized in that: The water-repellent finishing liquid also includes a flame retardant, and the flame retardant is one of aluminum hydroxide, magnesium hydroxide, antimony trioxide, ammonium chloride and zinc borate.

3. A method for treating down jacket fabrics against wind and rain according to claim 1, characterized in that: The water-repellent finishing liquid also includes an additive, and the type of the additive is any one of sodium bicarbonate and ammonium bicarbonate.

4. A method for treating down jacket fabrics with wind and rainproofing according to claim 1, characterized in that In: In step (1), the pre-baking temperature is controlled to be 50-80° C., and the pre-baking time is controlled to be 3-9 minutes. The baking temperature is controlled at 110-150°C, and the baking time is controlled at 3-5 minutes.

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