Waterproof and moisture-permeable down jacket fabric and preparation method thereof

Abstract

The waterproof and moisture-permeable down jacket fabric is prepared from the following raw materials in parts by weight: 160 to 200 parts of modified polyamide fiber fabric and 30 to 50 parts of hollow nano solution. The preparation method of the waterproof and moisture-permeable down jacket fabric comprises the following steps that S1, modified polyamide fiber fabric is punched in the thickness direction through a laser punching technology, the hole diameter is 0.08-0.12 mm, and the punched modified polyamide fiber fabric is soaked in a hollow nano solution; s2, the fabric is rolled and put in storage, and the waterproof and moisture permeable down jacket fabric is obtained. According to the waterproof and moisture-permeable down jacket fabric and the preparation method thereof, the moisture permeability of the fabric is improved while the waterproof performance of the fabric is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of textile fabrics, in particular to a waterproof and moisture-permeable down jacket fabric and a preparation method thereof. BACKGROUND

[0002] In the field of textile fabric manufacturing, the demand for waterproof and moisture-permeable fabrics is increasing, and the down jacket fabrics on the market are mostly made of conventional nylon or polyester materials. However, the moisture permeability and air permeability of conventional nylon or polyester materials are limited, and the comfort and dry feeling are further reduced after multi-layer compounding, which cannot meet the growing clothing needs of people. SUMMARY

[0003] Therefore, the purpose of the present application is to provide a waterproof and moisture-permeable down jacket fabric and a preparation method thereof, which improves the waterproofness and moisture permeability of the fabric.

[0004] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: A waterproof and moisture-permeable down jacket fabric, comprising the following raw materials by weight: 160-200 parts of modified polyamide fiber fabric and 30-50 parts of hollow nano solution.

[0005] A preparation method of a waterproof and moisture-permeable down jacket fabric, comprising the following steps: S1: punching the modified polyamide fiber fabric in the thickness direction by laser punching technology, with a pore size of 0.08-0.12 mm, and then soaking the punched fabric in the hollow nano solution; S2: rolling and storing the fabric to obtain the waterproof and moisture-permeable down jacket fabric.

[0006] Preferably, the preparation method of the modified polyamide fiber fabric in step S1 comprises the following steps: Soaking the polyamide fiber fabric in the polyurethane emulsion for 24-48 h and drying to obtain the modified polyamide fiber fabric.

[0007] Preferably, the preparation method of the polyurethane emulsion is as follows: S11: preparing a nitronaphthalene solution and a polyurethane precursor solution; S12: mixing the nitronaphthalene solution and the polyurethane precursor solution in a weight ratio of 1:1, dissolving them in an ethyl acetate solvent, stirring at a speed of 600 r / min for 8-10 h to obtain the polyurethane emulsion.

[0008] Preferably, the preparation method of the nitronaphthalene solution in step S11 comprises the following steps: Mixing naphthalene and concentrated nitric acid, carrying out oil bath nitration reaction at 70-90℃ for 24-48 h, filtering, washing with water, and adding N,N-dimethylformamide solution to obtain the nitronaphthalene solution.

[0009] Preferably, the weight ratio of the naphthalene, concentrated nitric acid and N,N-dimethylformamide solution is 1:2:4.

[0010] Preferably, the preparation method of the polyurethane precursor solution in step S11 comprises the following steps: The polyurethane, epoxy polyol, polytetramethylene ether glycol, isophorone diisocyanate, dibutyl tin dilaurate, acetone and hydroxyethyl ethylenediamine are mixed, heated to 60-80 DEG C, tannic acid is added, stirred for 12-18 h, and then cooled to room temperature to obtain the polyurethane precursor solution.

[0011] Preferably, the weight ratio of the polyurethane, epoxy polyol, polytetramethylene ether glycol, isophorone diisocyanate, dibutyl tin dilaurate, acetone, hydroxyethyl ethylenediamine and tannic acid is 2:2:2:1:1:2:1:4.

[0012] Preferably, the preparation method of the hollow nano solution comprises the following steps: The cetyltrimethylammonium bromide, n-hexane, 25% ammonia solution and 50% ethanol solution are mixed, stirred at 35 DEG C for 5-10 min, then tetraethyl orthosilicate and bis(triethoxy)silyl ethane are added, and the stirring is continued for 12-24 h to obtain the hollow nano solution.

[0013] Preferably, the weight ratio of the cetyltrimethylammonium bromide, n-hexane, ammonia solution, ethanol solution, tetraethyl orthosilicate and bis(triethoxy)silyl ethane is 1:1:2:3:1:2.

[0014] The present application firstly makes the sweat flow smoothly to the pore diameter and discharge to the outside through the opening of the surface of the fabric, and the filling of the hollow nano solution makes the fabric have a certain size of hole due to the hollow structure and mesoporous channel, the multilayer adsorption of the larger gap (hollow structure or stacking gap between particles) forms a porous adsorption structure, the modification of the polyurethane emulsion is beneficial to the improvement of the hydrophobic property of the fabric, in addition, the highly interconnected three-dimensional porous structure can transport the sweat vapor on the body surface to the outside of the fabric with lower humidity through the three-dimensional porous structure, ensuring the smooth discharge of sweat, and effectively preventing the infiltration of external water, and the modification of the polyurethane emulsion can provide additional closed protection for the fabric, which cooperates to make the fabric maintain light and soft while having excellent waterproof and moisture permeable properties. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application. In addition, it is particularly stated that the raw materials and equipment of the present application can be obtained from the market, and will not be listed one by one. Among them, the raw materials of the present application can be obtained from the market and are well known to those skilled in the art. Embodiment 1

[0016] A waterproof and moisture-permeable down jacket fabric comprises the following raw materials by weight: 160 parts of modified polyamide fiber fabric and 30 parts of hollow nano solution.

[0017] A preparation method of a waterproof and moisture-permeable down jacket fabric comprises the following steps: S1: polyamide fiber fabric is immersed in polyurethane emulsion for 24h and dried to obtain modified polyamide fiber fabric. The modified polyamide fiber fabric is perforated in the thickness direction by laser perforation technology, with a pore size of 0.08-0.12mm. After perforation, the fabric is soaked in a hollow nano solution; The preparation method of the hollow nano solution comprises the following steps: Cetyltrimethylammonium bromide, n-hexane, 25% ammonia solution and 50% ethanol solution are mixed, stirred at 35℃ for 5min, then tetraethyl orthosilicate and bis(triethoxy)silyl ethane are added, wherein the weight ratio of cetyltrimethylammonium bromide, n-hexane, ammonia solution, ethanol solution, tetraethyl orthosilicate and bis(triethoxy)silyl ethane is 1:1:2:3:1:2, and the stirring is continued for 12h to obtain the hollow nano solution; S2: the fabric is rolled and stored to obtain the waterproof and moisture-permeable down jacket fabric.

[0018] The preparation method of the polyurethane emulsion is as follows: S11: preparation of nitronaphthalene solution: naphthalene and concentrated nitric acid are mixed, and nitration reaction is carried out at 70℃ oil bath for 24h, then filtered, washed with water, and N,N-dimethylformamide solution is added, wherein the weight ratio of naphthalene, concentrated nitric acid and N,N-dimethylformamide solution is 1:2:4 to obtain the nitronaphthalene solution; Preparation of polyurethane precursor solution: polyurethane, epoxy polyol, polytetramethylene ether glycol, isophorone diisocyanate, dibutyl tin dilaurate, acetone and hydroxyethyl ethylenediamine are mixed, heated to 60℃, tannic acid is added, and the weight ratio of polyurethane, epoxy polyol, polytetramethylene ether glycol, isophorone diisocyanate, dibutyl tin dilaurate, acetone, hydroxyethyl ethylenediamine and tannic acid is 2:2:2:1:1:2:1:4, stirring for 12h, cooling to room temperature, polyurethane precursor solution is obtained; S12: The nitronaphthalene solution and the polyurethane precursor solution are mixed in a ratio of 1:1 by weight, then dissolved in ethyl acetate solvent, stirred at a speed of 600r / min for 8h, and a polyurethane emulsion is obtained. Example 2:

[0019] A waterproof and moisture-permeable down jacket fabric, comprising the following raw materials by weight: 180 parts of modified polyamide fiber fabric and 40 parts of hollow nano solution.

[0020] A preparation method of a waterproof and moisture-permeable down jacket fabric, comprising the following steps: S1: The polyamide fiber fabric is immersed in the polyurethane emulsion for 36h and dried to obtain the modified polyamide fiber fabric. The modified polyamide fiber fabric is perforated in the thickness direction by laser perforation technology, and the pore size is 0.08-0.12mm. After perforation, the fabric is soaked in the hollow nano solution; The preparation method of the hollow nano solution comprises the following steps: Mix cetyltrimethylammonium bromide, n-hexane, 25% ammonia solution and 50% ethanol solution, stir at 35℃ for 8min, then add tetraethyl orthosilicate and bis(triethoxy)silyl ethane, wherein the weight ratio of cetyltrimethylammonium bromide, n-hexane, ammonia solution, ethanol solution, tetraethyl orthosilicate and bis(triethoxy)silyl ethane is 1:1:2:3:1:2, continue to stir for 18h, and the hollow nano solution is obtained; S2: The fabric is rolled and stored in the warehouse to obtain the waterproof and moisture-permeable down jacket fabric.

[0021] The preparation method of the polyurethane emulsion is as follows: S11: Preparation of nitronaphthalene solution: naphthalene and concentrated nitric acid are mixed, and nitration reaction is carried out at 80℃ for 36h, then filtered, washed with water, and N,N-dimethylformamide solution is added, and the weight ratio of naphthalene, concentrated nitric acid and N,N-dimethylformamide solution is 1:2:4, to obtain the nitronaphthalene solution; Preparation of polyurethane precursor solution: polyurethane, epoxy polyol, polytetramethylene ether glycol, isophorone diisocyanate, dibutyl tin dilaurate, acetone and hydroxyethyl ethylenediamine are mixed, heated to 70℃, tannic acid is added, and the weight ratio of polyurethane, epoxy polyol, polytetramethylene ether glycol, isophorone diisocyanate, dibutyl tin dilaurate, acetone, hydroxyethyl ethylenediamine and tannic acid is 2:2:2:1:1:2:1:4, stirring for 16h, cooling to room temperature, polyurethane precursor solution is obtained; S12: The nitronaphthalene solution and the polyurethane precursor solution are mixed in a ratio of 1:1 by weight, then dissolved in ethyl acetate solvent, stirred at a speed of 600r / min for 9h, and a polyurethane emulsion is obtained. Example 3:

[0022] A waterproof and moisture-permeable down jacket fabric, comprising the following raw materials by weight: 200 parts of modified polyamide fiber fabric and 50 parts of hollow nano solution.

[0023] A preparation method of a waterproof and moisture-permeable down jacket fabric, comprising the following steps: S1: The polyamide fiber fabric is immersed in the polyurethane emulsion for 48h and dried to obtain the modified polyamide fiber fabric. The modified polyamide fiber fabric is perforated in the thickness direction by laser perforation technology, and the pore size is 0.08-0.12mm. After perforation, the fabric is soaked in the hollow nano solution; The preparation method of the hollow nano solution comprises the following steps: Mix cetyltrimethylammonium bromide, n-hexane, 25% ammonia solution and 50% ethanol solution, stir at 35℃ for 10min, then add tetraethyl orthosilicate and bis(triethoxy)silyl ethane, wherein the weight ratio of cetyltrimethylammonium bromide, n-hexane, ammonia solution, ethanol solution, tetraethyl orthosilicate and bis(triethoxy)silyl ethane is 1:1:2:3:1:2, continue to stir for 24h, and the hollow nano solution is obtained; S2: The fabric is rolled and stored in the warehouse to obtain the waterproof and moisture-permeable down jacket fabric.

[0024] The preparation method of the polyurethane emulsion is as follows: S11: Preparation of nitronaphthalene solution: naphthalene and concentrated nitric acid are mixed, and oil bath nitration reaction is carried out at 90℃ for 48h, then filtered, washed with water, and N,N-dimethylformamide solution is added, and the weight ratio of naphthalene, concentrated nitric acid and N,N-dimethylformamide solution is 1:2:4, to obtain the nitronaphthalene solution; Preparation of polyurethane precursor solution: polyurethane, epoxy polyol, polytetramethylene ether glycol, isophorone diisocyanate, dibutyl tin dilaurate, acetone and hydroxyethyl ethylenediamine are mixed, heated to 80℃, tannic acid is added, and the weight ratio of polyurethane, epoxy polyol, polytetramethylene ether glycol, isophorone diisocyanate, dibutyl tin dilaurate, acetone, hydroxyethyl ethylenediamine and tannic acid is 2:2:2:1:1:2:1:4, stirring for 18h, cooling to room temperature, polyurethane precursor solution is obtained; S12: The nitronaphthalene solution and the polyurethane precursor solution are mixed in a ratio of 1:1 by weight, then dissolved in ethyl acetate solvent, stirred at a speed of 600r / min for 10h, and a polyurethane emulsion is obtained. Comparative example 1:

[0025] Comparative example 1 and example 1 have basically the same preparation method, except that the polyamide fiber fabric is not modified, specifically: A waterproof and moisture permeable down jacket fabric includes the following raw materials by weight: 160 parts of polyamide fiber fabric and 30 parts of hollow nano solution.

[0026] A preparation method of a waterproof and moisture permeable down jacket fabric includes the following steps: S1: The polyamide fiber fabric is perforated in the thickness direction by laser perforation technology, with a hole size of 0.08-0.12mm, and then soaked in the hollow nano solution after perforation; The preparation method of the hollow nano solution includes the following steps: Mix cetyltrimethylammonium bromide, n-hexane, 25% ammonia solution and 50% ethanol solution, stir at 35℃ for 5min, then add tetraethyl orthosilicate and bis(triethoxy)silyl ethane, wherein the weight ratio of cetyltrimethylammonium bromide, n-hexane, ammonia solution, ethanol solution, tetraethyl orthosilicate and bis(triethoxy)silyl ethane is 1:1:2:3:1:2, continue to stir for 12h, and get the hollow nano solution; S2: The fabric is rolled and stored, and a waterproof and moisture permeable down jacket fabric is obtained. Comparative example 2:

[0027] Comparative example 2 and example 1 have basically the same preparation method, except that the hollow nano solution is not used, specifically: A waterproof and moisture permeable down jacket fabric includes the following raw materials by weight: 160 parts of modified polyamide fiber fabric.

[0028] A preparation method of a waterproof and moisture permeable down jacket fabric includes the following steps: S1: polyamide fiber fabric is immersed in polyurethane emulsion for 24h, dried, and the modified polyamide fiber fabric is obtained, the modified polyamide fiber fabric is punched in the thickness direction by laser punching technology, and the pore size is 0.08-0.12mm; S2: the fabric is rolled and stored, and the waterproof and moisture-permeable down jacket fabric is obtained.

[0029] The preparation method of the polyurethane emulsion is as follows: S11: nitronaphthalene solution is prepared: naphthalene and concentrated nitric acid are mixed, and nitration reaction is carried out at 70℃ oil bath for 24h, then filtered, washed with water, and then N,N-dimethylformamide solution is added, and the weight ratio of naphthalene, concentrated nitric acid and N,N-dimethylformamide solution is 1:2:4, and nitronaphthalene solution is obtained; The polyurethane precursor solution is prepared: polyurethane, epoxy polyol, polytetramethylene ether glycol, isophorone diisocyanate, dibutyltin dilaurate, acetone and hydroxyethyl ethylenediamine are mixed, and the temperature is raised to 60℃, then tannic acid is added, and the weight ratio of polyurethane, epoxy polyol, polytetramethylene ether glycol, isophorone diisocyanate, dibutyltin dilaurate, acetone, hydroxyethyl ethylenediamine and tannic acid is 2:2:2:1:1:2:1:4, and stirring is carried out for 12h, and then the temperature is lowered to room temperature, and the polyurethane precursor solution is obtained; S12: the nitronaphthalene solution and the polyurethane precursor solution are mixed in a proportion of 1:1 by weight, then dissolved in ethyl acetate solvent, and stirred at a speed of 600r / min for 8h, and the polyurethane emulsion is obtained The performance of the down jacket fabric obtained in examples 1-3, commercially available Kunshan Jinxuda Textile Co., Ltd. and comparative examples 1-2 is tested respectively. Waterproofness: tested according to GB / T4744-2013 "Textile fabric water resistance determination static water pressure test" and GB / T4745-2012, and tested after the fabric is washed for 20 times and dried, and the best is 5 levels, the excellent is 4 levels, and the qualified is 3 levels.

[0030] Moisture permeability: GB / T12704-2009 "Textile fabric moisture permeability test method" (hygroscopic method), and the ability of the fabric to allow water vapor to pass through is evaluated.

[0031] The test results are shown in Table 1.

[0032] Table 1: test data of the fabric of examples 1-3, commercially available fabric and comparative example 1 Test item Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 1 Commercial fabric Waterproofing grade 5th level 5th level 5th level 2nd level 3rd level 5th level hydrostatic pressure mm.H2O 573 581 585 472 396 527 moisture permeability g / m 2 • 24h 5345 5412 5642 2081 2572 4893 As shown in the above table, the hydrostatic pressure and moisture permeability of examples 1-3 are improved compared with comparative examples 1-2 and commercially available fabric, and the waterproof grade is higher, and the down jacket fabric of the application has excellent waterproof and moisture-permeable performance.

[0033] The foregoing description of the disclosed embodiments enables one skilled in the art to make or use the application. Numerous modifications of those embodiments can be apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without the use of the innovation falling outside the spirit and scope of the application. Therefore, the application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waterproof and breathable down jacket fabric, characterized in that, The raw materials include the following parts by weight: 160-200 parts by weight of modified polyamide fiber fabric and 30-50 parts by weight of hollow nano solution.

2. A method for preparing a waterproof and breathable down jacket fabric as described in claim 1, characterized in that, Includes the following steps: S1: The modified polyamide fiber fabric is perforated in the thickness direction using laser perforation technology, with a pore size of 0.08-0.12mm. After perforation, it is immersed in a hollow nano solution. S2: Roll up the fabric and put it into storage to obtain waterproof and breathable down jacket fabric.

3. The method for preparing the waterproof and breathable down jacket fabric as described in claim 1, characterized in that, The preparation method of the modified polyamide fiber fabric in step S1 includes the following steps: The modified polyamide fiber fabric is obtained by immersing the polyamide fiber fabric in a polyurethane emulsion for 24-48 hours and then drying it.

4. The method for preparing the waterproof and breathable down jacket fabric as described in claim 3, characterized in that, The preparation method of the polyurethane emulsion is as follows: S11: Preparation of nitronaphthalene solution and polyurethane precursor solution; S12: Mix the nitronaphthalene solution and the polyurethane precursor solution in a weight ratio of 1:1, dissolve them in ethyl acetate solvent, and stir at 600 r / min for 8-10 h to obtain a polyurethane emulsion.

5. The method for preparing the waterproof and breathable down jacket fabric as described in claim 4, characterized in that, The preparation method of the nitronaphthalene solution in step S11 includes the following steps: Naphthalene and concentrated nitric acid are mixed and nitrated in an oil bath at 70-90℃ for 24-48 hours. The mixture is then filtered, washed with water, and N,N-dimethylformamide solution is added to obtain nitronaphthalene solution.

6. The method for preparing the waterproof and breathable down jacket fabric as described in claim 5, characterized in that, The weight ratio of naphthalene, concentrated nitric acid, and N,N-dimethylformamide solution is 1:2:

4.

7. The method for preparing the waterproof and breathable down jacket fabric as described in claim 4, characterized in that, The preparation method of the polyurethane precursor liquid in step S11 includes the following steps: Polyurethane, epoxy polyol, polytetramethylene ether diol, isophorone diisocyanate, dibutyltin dilaurate, acetone and hydroxyethyl ethylenediamine are mixed, heated to 60℃-80℃, tannic acid is added, and the mixture is stirred for 12-18 hours and then cooled to room temperature to obtain a polyurethane precursor solution.

8. The method for preparing the waterproof and breathable down jacket fabric as described in claim 7, characterized in that, The weight ratio of the polyurethane, epoxy polyol, polytetramethylene ether diol, isophorone diisocyanate, dibutyltin dilaurate, acetone, hydroxyethyl ethylenediamine, and tannic acid is 2:2:2:1:1:2:1:

4.

9. The method for preparing the waterproof and breathable down jacket fabric as described in claim 2, characterized in that, The method for preparing the hollow nano-solution includes the following steps: Hexadecyltrimethylammonium bromide, n-hexane, a 25% (w / w) ammonia solution, and a 50% (v / v) ethanol solution were mixed and stirred at 35°C for 5-10 min. Then, tetraethyl orthosilicate and bis(triethoxy)silyl ethane were added, and stirring was continued for 12-24 h to obtain a hollow nano-solution.

10. The method for preparing the waterproof and breathable down jacket fabric as described in claim 9, characterized in that, The weight ratio of hexadecyltrimethylammonium bromide, n-hexane, ammonia solution, ethanol solution, tetraethyl orthosilicate, and bis(triethoxy)silyl ethane is 1:1:2:3:1:2.