Washable anti-deformation fabric and preparation method thereof

Abstract

The invention discloses a washable anti-deformation fabric and a preparation method thereof, and relates to the technical field of fabrics. According to the invention, the cellulose fibers are co-modified by adopting the natural antibacterial agent, the natural antibacterial agent is composed of catechin, citric acid and amino acid, and the natural antibacterial agent forms a cross-linked structure by utilizing amino, carboxyl and hydroxyl of the natural antibacterial agent to react with hydroxyl of the cellulose fibers, so that the wet strength and the dimensional stability of the cellulose fibers are improved, and the binding force between the fibers is further enhanced; and swelling and shrinkage of the fibers in the washing process are reduced. Meanwhile, the sepiolite loaded with silver molybdate and the finishing agent form a layer of compact protective film on the surface of the fabric, permeation of water molecules and adhesion of bacteria are prevented, and the washing resistance and the antibacterial property of the fabric are further improved.

Description

Technical Field

[0001] The invention relates to the technical field of fabrics, in particular to a washable and deformation-resistant fabric and a preparation method thereof. Background Art

[0002] As people's awareness of environmental protection continues to increase and their pursuit of a healthy lifestyle continues to grow, more and more people are beginning to pay attention to the health attributes of textiles. People are beginning to pay attention to whether textiles and clothing have natural antibacterial or antibacterial functions, and whether they are suitable for direct contact with the skin and long-term wear. This trend reflects consumers' high attention to the safety of textiles and their pursuit of a healthy quality of life. People hope to reduce health risks such as skin allergies and infections by choosing textiles with antibacterial and antibacterial properties, thereby improving the comfort and safety of daily life.

[0003] With the progress of society and the rapid development of economy, consumers have higher and higher requirements for products. Clothing is a necessary item for people's life. In addition to comfort, consumers require clothing to have more functions. Fiber, as the main component of clothing, plays a decisive role in the performance of clothing fabrics. However, the existing fiber functions are single, and people need to give fabrics special functions through textile post-processing processes. However, these methods make it difficult for the prepared fabrics to have long-lasting functions. Therefore, the development of durable multifunctional fabrics can meet the requirements of a variety of clothing. Summary of the invention

[0004] The object of the present invention is to provide a washable and deformation-resistant fabric and a preparation method thereof, so as to solve the problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a washable and deformation-resistant fabric, which is obtained by immersing a blended fabric in a finishing liquid and then drying and baking the blended fabric, wherein the blended fabric is composed of modified cellulose fiber, elastic fiber, and cotton fiber in a mass ratio of 50-80:10-30:5-15.

[0006] Furthermore, the modified cellulose fiber is cellulose fiber co-modified with catechin, citric acid and amino acid.

[0007] Furthermore, the mass ratio of catechin, citric acid and amino acid is 10-40:5-10:5-10.

[0008] Furthermore, the cellulose fiber is one or more of hemp fiber, viscose fiber and modal fiber.

[0009] Furthermore, the elastic fiber is at least one of spandex, polyester, nylon, and polyetherester elastic fiber.

[0010] Furthermore, the blended fabric has a gram weight of 120 to 180 g / m 2 .

[0011] Furthermore, the preparation method of the washable and deformation-resistant fabric is:

[0012] (1) Catechin is dissolved in water at 70-80° C. in a mass ratio of 3-30:100, stirred until dissolved, citric acid and amino acid are added, stirred until dissolved, cellulose fibers are soaked therein, taken out after 45-70 seconds, excess liquid is removed by pressure, and then a first pre-baking and a first baking are performed, and modified cellulose fibers are obtained after cooling;

[0013] (2) blending modified cellulose fiber, elastic fiber and cotton fiber to obtain a fabric;

[0014] (3) sepiolite powder is mixed with 1 mol / L hydrochloric acid in a mass ratio of 1:20, and reacted at 60-70° C. for 2-3 h. After the reaction is completed, the mixture is filtered, washed with deionized water until the pH of the washing liquid is neutral, and dried at 60° C. to constant weight to obtain hydroxylated sepiolite;

[0015] (4) Mix hydroxylated sepiolite and 0.3000 mol / L silver nitrate aqueous solution in a mass ratio of 1:10, ultrasonicate at 50-80°C and 20-30 kHz for 10-15 min, filter, dry at 60°C to constant weight, and then react with 0.0428 mol / L molybdic acid-water solution in a microwave atmospheric pressure radiation reactor for 30 min, filter, wash the product with distilled water 4 times, and then dry at 60°C for 24 h to obtain an antibacterial filler;

[0016] (5) Styrene, vinyl triethoxysilane and antibacterial filler are mixed in a mass ratio of 1-5:3-10:0.5-3, stirred evenly, and an initiator is added. The initiator is any one of Lewis acid, alcohol compound, protonic acid, or ether compound. The temperature is raised to 80-90° C. and reacted for 1-3 hours to obtain a polymer solution. An emulsifier of 1% by mass of the polymer solution is added, and the mixture is stirred and emulsified at 400 rpm for 30 minutes to obtain a finishing solution. The emulsifier can be AEO3 or AEO9 emulsifier;

[0017] (6) The fabric is immersed in the finishing liquid, taken out after 40 to 60 seconds, and the excess liquid is removed by pressure, and then a second pre-baking and a second baking are performed, and after cooling, a washable and deformation-resistant fabric is obtained.

[0018] Furthermore, the amino acid in step (1) is at least one of glutamic acid, serine and proline.

[0019] Furthermore, in step (1), the first pre-baking is at 80-100° C. for 3 min; and the first baking is at 90-115° C. for 3 min.

[0020] Furthermore, in step (6), the second pre-baking temperature is 80-100° C. and the time is 4 minutes; the second baking temperature is 100-130° C. and the time is 3 minutes.

[0021] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0022] The invention adopts a natural antibacterial agent to co-modify the cellulose fiber. The natural antibacterial agent is composed of catechin, citric acid and amino acid. The natural antibacterial agent uses its amino group, carboxyl group and hydroxyl group to react with the hydroxyl group of the cellulose fiber to form a cross-linked structure, thereby improving the wet strength and dimensional stability of the cellulose fiber, further enhancing the bonding force between the fibers, and reducing the swelling and shrinkage of the fibers during washing. At the same time, the nano filler and the finishing agent form a dense protective film on the surface of the fabric to prevent the penetration of water molecules and the adhesion of bacteria, thereby further improving the washability and antibacterial properties of the fabric.

[0023] Nanofillers are made of sepiolite. After acidification, sepiolite contains rich hydroxyl groups, which can bind silver ions and promote the nucleation and growth of silver salt particles in sepiolite. Then, it is immersed in molybdate. The molybdate molecules gather around the silver salt nuclei and react with the silver salt molecules to generate silver molybdate, thus obtaining sepiolite loaded with silver molybdate, which avoids the easy elution of traditional silver-based antibacterial agents. At the same time, the combination of sepiolite and nanosilver effectively increases the specific surface area, greatly enhances the antibacterial activity, and works together with natural antibacterial agents to improve the antibacterial properties of the fabric from both inorganic and organic aspects. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] (1) Catechin is dissolved in 75°C water at a mass ratio of 3:100, stirred until dissolved, citric acid and glutamic acid are added, stirred until dissolved, and then the hemp fiber is soaked in it, taken out after 70 seconds, and the excess liquid is removed by pressure, and then the first pre-baking and the first baking are performed. The first pre-baking is 80°C for 3 minutes; the first baking is 90°C for 3 minutes, and the modified cellulose fiber is obtained after cooling; the mass ratio of catechin, citric acid and amino acid is 10:5:5;

[0027] (2) Modified cellulose fiber, spandex and cotton fiber are blended in a mass ratio of 50:10:5 to obtain a 120 g / m 2 Fabrics;

[0028] (3) sepiolite powder is mixed with 1 mol / L hydrochloric acid in a mass ratio of 1:20, and reacted at 60° C. for 2 h. After the reaction is completed, the mixture is filtered, washed with deionized water until the pH of the washing liquid is neutral, and dried at 60° C. to constant weight to obtain hydroxylated sepiolite;

[0029] (4) Mix hydroxylated sepiolite and 0.3000 mol / L silver nitrate aqueous solution in a mass ratio of 1:10, ultrasonicate at 50°C and 30 kHz for 10 min, filter, dry at 60°C to constant weight, and then react with 0.0428 mol / L molybdic acid-water solution in a microwave atmospheric pressure radiation reactor for 30 min, filter, wash the product with distilled water 4 times, and then dry at 60°C for 24 h to obtain an antibacterial filler;

[0030] (5) Styrene, vinyl triethoxysilane and antibacterial filler are mixed in a mass ratio of 1:3:0.5, stirred evenly, Lewis acid is added, the temperature is raised to 80-90° C., reacted for 1 hour to obtain a polymer solution, 1% of the mass of the polymer solution is added with AEO3 emulsifier, stirred and emulsified at 400 rpm for 30 minutes to obtain a finishing solution;

[0031] (6) The fabric is immersed in the finishing liquid, taken out after 40 seconds, and the excess liquid is removed by pressure, and then a second pre-baking and a second baking are performed. The temperature of the second pre-baking is 80°C and the time is 4 minutes; the temperature of the second baking is 100°C and the time is 3 minutes. After cooling, a washable and deformation-resistant fabric is obtained.

[0032] Example 2

[0033] (1) Catechin is dissolved in 70°C water at a mass ratio of 20:100, stirred until dissolved, citric acid and serine are added, stirred until dissolved, and viscose fiber is soaked therein, taken out after 60 seconds, and excess liquid is removed by pressure, and then the first pre-baking and the first baking are performed. The first pre-baking is at 90°C for 3 minutes; the first baking is at 100°C for 3 minutes, and the modified cellulose fiber is obtained after cooling. The mass ratio of catechin, citric acid and serine is 25:7:7.

[0034] (2) Modified cellulose fiber, polyester fiber and cotton fiber are blended in a mass ratio of 65:20:10 to obtain 150 g / m 2 Fabrics;

[0035] (3) sepiolite powder was mixed with 1 mol / L hydrochloric acid in a mass ratio of 1:20, and reacted at 65°C for 2 h. After the reaction, the mixture was filtered, washed with deionized water until the pH of the washing solution was neutral, and dried at 60°C to constant weight to obtain hydroxylated sepiolite;

[0036] (4) Mix hydroxylated sepiolite and 0.3000 mol / L silver nitrate aqueous solution in a mass ratio of 1:10, ultrasonicate at 65°C and 30 kHz for 12 min, filter, dry at 60°C to constant weight, and then react with 0.0428 mol / L molybdic acid-water solution in a microwave atmospheric pressure radiation reactor for 30 min, filter, wash the product with distilled water 4 times, and then dry at 60°C for 24 h to obtain an antibacterial filler;

[0037] (5) Styrene, vinyl triethoxysilane and antibacterial filler were mixed in a mass ratio of 3:6:1.5, stirred evenly, protonic acid was added, the temperature was raised to 85° C., reacted for 2 h, a polymer solution was obtained, 1% of the mass of the polymer solution was added with AEO9 emulsifier, and the mixture was stirred and emulsified at 400 rpm for 30 min to obtain a finishing solution;

[0038] (6) The fabric is immersed in the finishing liquid, taken out after 55 seconds, and the excess liquid is removed by pressure, and then a second pre-baking and a second baking are performed. The temperature of the second pre-baking is 90°C and the time is 4 minutes; the temperature of the second baking is 115°C and the time is 3 minutes. After cooling, a washable and deformation-resistant fabric is obtained.

[0039] Example 3

[0040] (1) Catechin is dissolved in 80°C water at a mass ratio of 30:100, stirred until dissolved, citric acid and proline are added, stirred until dissolved, and modal fiber is soaked therein, taken out after 70 seconds, excess liquid is removed by pressure, and then the first pre-baking and the first baking are performed. The first pre-baking is 100°C for 3 minutes; the first baking is 115°C for 3 minutes, and the modified cellulose fiber is obtained after cooling. The mass ratio of catechin, citric acid and proline is 40:10:10.

[0041] (2) Modified cellulose fiber, polyether ester elastic fiber, and cotton fiber are blended in a mass ratio of 80:30:15 to obtain a 180 g / m 2 Fabrics;

[0042] (3) sepiolite powder is mixed with 1 mol / L hydrochloric acid in a mass ratio of 1:20, and reacted at 60-70° C. for 3 h. After the reaction is completed, the mixture is filtered, washed with deionized water until the pH of the washing liquid is neutral, and dried at 60° C. to constant weight to obtain hydroxylated sepiolite;

[0043] (4) Mix hydroxylated sepiolite and 0.3000 mol / L silver nitrate aqueous solution in a mass ratio of 1:10, ultrasonically treat at 80°C and 30 kHz for 15 min, filter, dry at 60°C to constant weight, and then react with 0.0428 mol / L molybdic acid-water solution in a microwave atmospheric pressure radiation reactor for 30 min, filter, wash the product with distilled water 4 times, and then dry at 60°C for 24 h to obtain an antibacterial filler;

[0044] (5) Styrene, vinyl triethoxysilane and antibacterial filler were mixed in a mass ratio of 5:10:3, stirred evenly, protonic acid was added, the temperature was raised to 90° C., reacted for 3 h, a polymer solution was obtained, 1% of the mass of the polymer solution was added with AEO3 emulsifier, and emulsified at 400 rpm for 30 min to obtain a finishing solution;

[0045] (6) The fabric is immersed in the finishing liquid, taken out after 60 seconds, and the excess liquid is removed by pressure, and then a second pre-baking and a second baking are performed. The temperature of the second pre-baking is 100°C and the time is 4 minutes; the temperature of the second baking is 130°C and the time is 3 minutes. After cooling, a washable and deformation-resistant fabric is obtained.

[0046] Comparative Example 1 (without adding catechins)

[0047] (1) adding water, citric acid and serine, stirring until dissolved, soaking the viscose fiber therein, taking it out after 60 seconds, removing the excess liquid by pressure, and then performing the first pre-baking and the first baking, the first pre-baking is 90°C for 3 minutes; the first baking is 100°C for 3 minutes, and the modified cellulose fiber is obtained after cooling; the mass ratio of water, citric acid and serine is 100:7:7;

[0048] (2) Modified cellulose fiber, polyester fiber and cotton fiber are blended in a mass ratio of 65:20:10 to obtain 150 g / m 2 Fabrics;

[0049] (3) sepiolite powder was mixed with 1 mol / L hydrochloric acid in a mass ratio of 1:20, and reacted at 65°C for 2 h. After the reaction, the mixture was filtered, washed with deionized water until the pH of the washing solution was neutral, and dried at 60°C to constant weight to obtain hydroxylated sepiolite;

[0050] (4) Mix hydroxylated sepiolite and 0.3000 mol / L silver nitrate aqueous solution in a mass ratio of 1:10, ultrasonicate at 65°C and 30 kHz for 12 min, filter, dry at 60°C to constant weight, and then react with 0.0428 mol / L molybdic acid-water solution in a microwave atmospheric pressure radiation reactor for 30 min, filter, wash the product with distilled water 4 times, and then dry at 60°C for 24 h to obtain an antibacterial filler;

[0051] (5) Styrene, vinyl triethoxysilane and antibacterial filler were mixed in a mass ratio of 3:6:1.5, stirred evenly, protonic acid was added, the temperature was raised to 85° C., reacted for 2 h, a polymer solution was obtained, 1% of the mass of the polymer solution was added with AEO9 emulsifier, and the mixture was stirred and emulsified at 400 rpm for 30 min to obtain a finishing solution;

[0052] (6) The fabric is immersed in the finishing liquid, taken out after 55 seconds, and the excess liquid is removed by pressure, and then a second pre-baking and a second baking are performed. The temperature of the second pre-baking is 90°C and the time is 4 minutes; the temperature of the second baking is 115°C and the time is 3 minutes. After cooling, a washable and deformation-resistant fabric is obtained.

[0053] Comparative Example 2 (without adding citric acid)

[0054] (1) Catechin is dissolved in 70°C water at a mass ratio of 20:100, stirred until dissolved, and then serine is added and stirred until dissolved, and then viscose fiber is soaked in it, taken out after 60 seconds, and excess liquid is removed by pressure, and then the first pre-baking and the first baking are performed, the first pre-baking is 90°C, the time is 3 minutes; the first baking is 100°C, the time is 3 minutes, and the modified cellulose fiber is obtained after cooling; the mass ratio of catechin to serine is 25:7;

[0055] (2) Modified cellulose fiber, polyester fiber and cotton fiber are blended in a mass ratio of 65:20:10 to obtain 150 g / m 2 Fabrics;

[0056] (3) sepiolite powder was mixed with 1 mol / L hydrochloric acid in a mass ratio of 1:20, and reacted at 65°C for 2 h. After the reaction, the mixture was filtered, washed with deionized water until the pH of the washing solution was neutral, and dried at 60°C to constant weight to obtain hydroxylated sepiolite;

[0057] (4) Mix hydroxylated sepiolite and 0.3000 mol / L silver nitrate aqueous solution in a mass ratio of 1:10, ultrasonicate at 65°C and 30 kHz for 12 min, filter, dry at 60°C to constant weight, and then react with 0.0428 mol / L molybdic acid-water solution in a microwave atmospheric pressure radiation reactor for 30 min, filter, wash the product with distilled water 4 times, and then dry at 60°C for 24 h to obtain an antibacterial filler;

[0058] (5) Styrene, vinyl triethoxysilane and antibacterial filler were mixed in a mass ratio of 3:6:1.5, stirred evenly, protonic acid was added, the temperature was raised to 85° C., reacted for 2 h, a polymer solution was obtained, 1% of the mass of the polymer solution was added with AEO9 emulsifier, and the mixture was stirred and emulsified at 400 rpm for 30 min to obtain a finishing solution;

[0059] (6) The fabric is immersed in the finishing liquid, taken out after 55 seconds, and the excess liquid is removed by pressure, and then a second pre-baking and a second baking are performed. The temperature of the second pre-baking is 90°C and the time is 4 minutes; the temperature of the second baking is 115°C and the time is 3 minutes. After cooling, a washable and deformation-resistant fabric is obtained.

[0060] Comparative Example 3 (without adding serine)

[0061] (1) Catechin is dissolved in 70°C water at a mass ratio of 20:100, stirred until dissolved, and then citric acid is added and stirred until dissolved, and then viscose fiber is soaked in it, taken out after 60 seconds, and excess liquid is removed by pressure, and then the first pre-baking and the first baking are performed, the first pre-baking is 90°C, the time is 3 minutes; the first baking is 100°C, the time is 3 minutes, and the modified cellulose fiber is obtained after cooling; the mass ratio of catechin to citric acid is 25:7;

[0062] (2) Modified cellulose fiber, polyester fiber and cotton fiber are blended in a mass ratio of 65:20:10 to obtain 150 g / m 2 Fabrics;

[0063] (3) sepiolite powder was mixed with 1 mol / L hydrochloric acid in a mass ratio of 1:20, and reacted at 65°C for 2 h. After the reaction, the mixture was filtered, washed with deionized water until the pH of the washing solution was neutral, and dried at 60°C to constant weight to obtain hydroxylated sepiolite;

[0064] (4) Mix hydroxylated sepiolite and 0.3000 mol / L silver nitrate aqueous solution in a mass ratio of 1:10, ultrasonicate at 65°C and 30 kHz for 12 min, filter, dry at 60°C to constant weight, and then react with 0.0428 mol / L molybdic acid-water solution in a microwave atmospheric pressure radiation reactor for 30 min, filter, wash the product with distilled water 4 times, and then dry at 60°C for 24 h to obtain an antibacterial filler;

[0065] (5) Styrene, vinyl triethoxysilane and antibacterial filler were mixed in a mass ratio of 3:6:1.5, stirred evenly, protonic acid was added, the temperature was raised to 85° C., reacted for 2 h, a polymer solution was obtained, 1% of the mass of the polymer solution was added with AEO9 emulsifier, and the mixture was stirred and emulsified at 400 rpm for 30 min to obtain a finishing solution;

[0066] (6) The fabric is immersed in the finishing liquid, taken out after 55 seconds, and the excess liquid is removed by pressure, and then a second pre-baking and a second baking are performed. The temperature of the second pre-baking is 90°C and the time is 4 minutes; the temperature of the second baking is 115°C and the time is 3 minutes. After cooling, a washable and deformation-resistant fabric is obtained.

[0067] Comparative Example 4 (using only sepiolite)

[0068] (1) Catechin is dissolved in 70°C water at a mass ratio of 20:100, stirred until dissolved, citric acid and serine are added, stirred until dissolved, and viscose fiber is soaked therein, taken out after 60 seconds, and excess liquid is removed by pressure, and then the first pre-baking and the first baking are performed. The first pre-baking is at 90°C for 3 minutes; the first baking is at 100°C for 3 minutes, and the modified cellulose fiber is obtained after cooling. The mass ratio of catechin, citric acid and serine is 25:7:7.

[0069] (2) Modified cellulose fiber, polyester fiber and cotton fiber are blended in a mass ratio of 65:20:10 to obtain 150 g / m 2 Fabrics;

[0070] (3) sepiolite powder was mixed with 1 mol / L hydrochloric acid in a mass ratio of 1:20, and reacted at 65°C for 2 h. After the reaction, the mixture was filtered, washed with deionized water until the pH of the washing solution was neutral, and dried at 60°C to constant weight to obtain hydroxylated sepiolite;

[0071] (4) Styrene, vinyl triethoxysilane, and hydroxylated sepiolite were mixed in a mass ratio of 3:6:1.5, stirred evenly, protonic acid was added, the temperature was raised to 85° C., and the reaction was performed for 2 h to obtain a polymer solution, and 1% of the mass of the polymer solution was added with AEO9 emulsifier, and the mixture was stirred and emulsified at 400 rpm for 30 min to obtain a finishing solution;

[0072] (5) The fabric is immersed in the finishing liquid, taken out after 55 seconds, and the excess liquid is removed by pressure, and then a second pre-baking and a second baking are performed. The temperature of the second pre-baking is 90°C and the time is 4 minutes; the temperature of the second baking is 115°C and the time is 3 minutes. After cooling, a washable and deformation-resistant fabric is obtained.

[0073] Comparative Example 5 (without using finishing liquid)

[0074] (1) Catechin is dissolved in 70°C water at a mass ratio of 20:100, stirred until dissolved, citric acid and serine are added, stirred until dissolved, and viscose fiber is soaked therein, taken out after 60 seconds, and excess liquid is removed by pressure, and then the first pre-baking and the first baking are performed. The first pre-baking is at 90°C for 3 minutes; the first baking is at 100°C for 3 minutes, and the modified cellulose fiber is obtained after cooling. The mass ratio of catechin, citric acid and serine is 25:7:7.

[0075] (2) Modified cellulose fiber, polyester fiber and cotton fiber are blended in a mass ratio of 65:20:10 to obtain 150 g / m 2 Fabric.

[0076] Effect example

[0077] Table 1 below shows the performance analysis results of the fabrics of Examples 1 to 3 of the present invention and Comparative Examples 1 to 5.

[0078] Table 1

[0079]

[0080]

[0081] The invention adopts a natural antibacterial agent to co-modify the cellulose fiber. The natural antibacterial agent is composed of catechin, citric acid and amino acid. The natural antibacterial agent uses its amino group, carboxyl group and hydroxyl group to react with the hydroxyl group of the cellulose fiber to form a cross-linked structure, thereby improving the wet strength and dimensional stability of the cellulose fiber, further enhancing the bonding force between the fibers, and reducing the swelling and shrinkage of the fibers during washing. At the same time, the nano filler and the finishing agent form a dense protective film on the surface of the fabric to prevent the penetration of water molecules and the adhesion of bacteria, thereby further improving the washability and antibacterial properties of the fabric.

[0082] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the equivalent elements of the claims be included in the invention. Any marking in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A washable and deformation-resistant fabric, which is made by dipping a blended fabric into a finishing liquid, and then drying and baking it, characterized in that: The blended fabric consists of modified cellulose fiber, elastic fiber and cotton fiber in a mass ratio of 50-80:10-30:5-15.

2. The washable and deformation-resistant fabric according to claim 1, characterized in that: The modified cellulose fiber is cellulose fiber co-modified by catechin, citric acid and amino acid.

3. The washable and deformation-resistant fabric according to claim 2, characterized in that: The mass ratio of the catechin, citric acid and amino acid is 10-40:5-10:5-10.

4. The washable and deformation-resistant fabric according to claim 2, characterized in that: The cellulose fiber is one or more of hemp fiber, viscose fiber and modal fiber.

5. The washable and deformation-resistant fabric according to claim 1, characterized in that: The elastic fiber is at least one of spandex, polyester, nylon, and polyetherester elastic fiber.

6. The washable and deformation-resistant fabric according to claim 1, characterized in that: The blended fabric has a gram weight of 120 to 180 g / m 2 .

7. The washable and deformation-resistant fabric according to claim 1, characterized in that: The preparation method of the washable and deformation-resistant fabric is as follows: (1) Catechin is dissolved in water at 70-80° C. in a mass ratio of 3-30:100, stirred until dissolved, citric acid and amino acid are added, stirred until dissolved, cellulose fibers are soaked therein, taken out after 45-70 seconds, excess liquid is removed by pressure, and then a first pre-baking and a first baking are performed, and modified cellulose fibers are obtained after cooling; (2) blending modified cellulose fiber, elastic fiber and cotton fiber to obtain a fabric; (3) sepiolite powder is mixed with 1 mol / L hydrochloric acid in a mass ratio of 1:20, and reacted at 60-70° C. for 2-3 h. After the reaction is completed, the mixture is filtered, washed with deionized water until the pH of the washing liquid is neutral, and dried at 60° C. to constant weight to obtain hydroxylated sepiolite; (4) Mix hydroxylated sepiolite and 0.3000 mol / L silver nitrate aqueous solution in a mass ratio of 1:10, ultrasonicate at 50-80°C and 20-30 kHz for 10-15 min, filter, dry at 60°C to constant weight, and then react with 0.0428 mol / L molybdic acid-water solution in a microwave atmospheric pressure radiation reactor for 30 min, filter, wash the product with distilled water 4 times, and then dry at 60°C for 24 h to obtain an antibacterial filler; (5) Styrene, vinyl triethoxysilane and antibacterial filler are mixed in a mass ratio of 1-5:3-10:0.5-3, stirred evenly, and an initiator is added. The initiator is any one of Lewis acid, alcohol compound, protonic acid, or ether compound. The temperature is raised to 80-90° C. and reacted for 1-3 hours to obtain a polymer solution. An emulsifier of 1% by mass of the polymer solution is added, and the mixture is stirred and emulsified at 400 rpm for 30 minutes to obtain a finishing solution. The emulsifier can be AEO3 or AEO9 emulsifier; (6) The fabric is immersed in the finishing liquid, taken out after 40 to 60 seconds, and the excess liquid is removed by pressure, and then a second pre-baking and a second baking are performed, and after cooling, a washable and deformation-resistant fabric is obtained.

8. The washable and deformation-resistant fabric according to claim 7, characterized in that: The amino acid in step (1) is at least one of glutamic acid, serine and proline.

9. The washable and deformation-resistant fabric according to claim 7, characterized in that: The first pre-baking in step (1) is at 80-100° C. for 3 min; the first baking is at 90-115° C. for 3 min.

10. The method for preparing a waterproof and oil-proof fabric according to claim 1, characterized in that: The second pre-baking temperature in step (6) is 80-100° C. and the time is 4 minutes; the second baking temperature is 100-130° C. and the time is 3 minutes.

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