Peptide-containing protein fiber fabric and preparation method thereof

Abstract

The invention relates to the technical field of fabric processing, in particular to a peptide-containing protein fiber fabric and a preparation method thereof.The peptide-containing protein fiber fabric is prepared from, by weight, 40-50% of modal fibers, 35-40% of polyvinyl alcohol fibers and the balance spandex; the polyvinyl alcohol fiber is prepared by the following method: 1) dissolving polyvinyl alcohol in an organic solvent, and then adding a spinning solution to obtain a polyvinyl alcohol solution; 2) adding vinyl polysiloxane, a solid filler, a silane coupling agent, peptide protein, fatty acid sulfoalkyl ester and hydroxyethyl cellulose into a polyvinyl alcohol solvent to obtain a mixed solution; and 3) spinning the mixed solution by using a wet spinning process, coagulating in a coagulating bath, drafting, hydroformylating in an acetal solution, oiling, drying and curling to obtain the polyvinyl alcohol fiber. The peptide-containing protein fiber fabric prepared by the formula and the process has good softness, skin friendliness, breathability and hygroscopicity, also has good friction with the skin, and does not shift when being worn.

Description

Technical Field

[0001] The present application relates to the technical field of fabric processing, and more specifically, to a peptide protein fiber fabric and a preparation method thereof. Background Art

[0002] The skin of babies in infancy is very delicate, therefore, the fabrics of baby clothes at this stage are mainly cotton fabrics, especially underwear. The reason is that cotton fabrics have good moisture absorption and breathability, and can effectively regulate the humidity and temperature of the baby's body surface. Even when the baby is active and sweats easily, it can quickly absorb sweat and keep dry, preventing the occurrence of prickly heat or diaper rash. Secondly, pure cotton fabrics are soft and skin-friendly, and will not cause any friction or irritation to the baby's delicate skin.

[0003] However, when babies lie flat to play or sleep, cotton fabrics tend to move upward, exposing the baby's belly and causing discomfort. The main reasons are: the friction between the inner layer of cotton fabrics and the skin is insufficient, causing the clothes to move upward when the baby is active, and static electricity is easily generated in dry weather, making cotton fabrics more likely to fit the body and move upward. In order to prevent clothes from moving upward, baby clothes are usually prepared as jumpsuits, which can effectively prevent clothes from moving upward. However, jumpsuits are inconvenient to wear and are troublesome. Therefore, it is necessary to provide a fabric that does not move upward. Summary of the invention

[0004] In order to solve the problem that existing pure cotton fabrics tend to move upward when worn, the present application provides a peptide protein fiber fabric and a preparation method thereof.

[0005] In the first aspect, the present application provides a peptide protein fiber fabric, which adopts the following technical solution: A peptide protein fiber fabric is prepared from the following raw materials in percentage by weight: Modal fiber 40-50% Polyvinyl alcohol fiber 35-40% The remaining amount is spandex; The polyvinyl alcohol fiber is prepared by the following method: 1) dissolving polyvinyl alcohol in an organic solvent, and then adding a spinning solution to obtain a polyvinyl alcohol solution; 2) adding vinyl polysiloxane, solid filler, silane coupling agent, peptide protein, fatty acid sulfonalkyl ester and hydroxyethyl cellulose to a polyvinyl alcohol solvent to obtain a mixed solution; 3) The mixed solution is spun by wet spinning, coagulated and drawn in a coagulation bath, and then hydroformylated in an acetal solution, oiled, dried, and curled to obtain polyvinyl alcohol fibers.

[0006] By adopting the above technical scheme, the peptide protein fiber fabric prepared has good softness, skin-friendliness, breathability and moisture absorption, and also has good friction with the skin and will not shift when worn.

[0007] Among them, modal fiber can improve the skin-friendly feel, air permeability and comfort of fabrics, but modal fiber is easy to deform and shrink during use. Spandex has good elasticity. The problem of modal fiber being easy to deform and shrink can be effectively improved by adding spandex, modal fiber and polyvinyl alcohol fiber to prepare fabrics. At the same time, the elasticity of spandex is used to make the fabric adapt to the baby's physical activities, which helps the fabric to keep fitting without being tight when worn, and avoids the displacement of clothing due to being too tight or too loose. At the same time, it can also increase the friction between the fabric and the skin, and prevent the clothing from moving up when the baby is active. Spandex is added in this application to improve the elasticity of the fabric, but the softness, skin-friendly and air-breathable and breathable properties of spandex are poor. Therefore, in this application, by preparing specific polyvinyl alcohol fibers, the problem of spandex causing the fabric to be soft, skin-friendly and breathable and breathable properties is solved, and at the same time, the friction between the material and the baby's skin is further increased to prevent it from running upward.

[0008] In the preparation process of polyvinyl alcohol fiber, by adding ingredients such as vinyl polysiloxane, solid filler, and silane coupling agent, the surface properties and internal structure of the fiber can be improved, making it softer and smoother. The addition of peptide protein not only improves the skin-friendliness of the fiber, but also helps to enhance the moisturizing properties of the fiber, further improves the breathability and moisture absorption of the fabric, and makes the fiber more comfortable when in contact with the skin. The addition of solid filler and hydroxyethyl cellulose enables polyvinyl alcohol fiber to form a tiny pore structure, which is conducive to the discharge of sweat and the dissipation of moisture, keeping the skin dry. At the same time, peptide protein, solid filler and hydroxyethyl cellulose can increase the friction between polyvinyl alcohol fiber and skin, thereby making the fabric close to the skin and not easy to shift. The addition of additives such as vinyl polysiloxane can improve the antistatic properties of the fabric. In dry weather, the fabric is not easy to generate static electricity, thus avoiding the problem of clothing fitting the body and moving up due to static electricity.

[0009] The polyvinyl alcohol fiber produced by the wet spinning process has a uniform cross section and good surface morphology. This structure makes the contact area between the fiber and the skin larger and the friction stronger, thus further improving the stability of the clothing when worn. By adding polyvinyl alcohol fiber to modal fiber and spandex, the fabric has greater friction with the baby's skin.

[0010] Preferably, the weight parts of raw materials used to prepare the polyvinyl alcohol fiber are as follows: Polyvinyl alcohol 20-25 parts 40-50 parts of organic solvent 10-15 parts of spinning solution 2-5 parts of vinyl polysiloxane 6-8 parts solid filler Silane coupling agent 1-2 parts Peptide protein 10-15 parts 1-2 parts fatty acid sulfonyl ester Hydroxyethyl cellulose 2-5 parts.

[0011] By adopting the above technical solution, the weight of the raw materials used to prepare the polyvinyl alcohol fiber is optimized, and the softness, skin-friendliness, air permeability, moisture absorption and friction of the peptide protein fiber fabric are further improved.

[0012] Preferably, the solid filler is obtained by mixing shell powder, diatomaceous earth and mica powder in a weight ratio of (4-6):3:1.

[0013] By adopting the above technical solution, the air permeability, moisture discharge and softness of the polyvinyl alcohol fiber can be further improved, and at the same time, the friction of the polyvinyl alcohol fiber can be improved, thereby increasing the friction of the fabric on the baby's skin and preventing the clothes from running upwards.

[0014] Both shell powder and diatomaceous earth have porous structures, which form more tiny pores inside the fiber, which is conducive to the discharge of sweat and the dissipation of moisture, thereby improving the air permeability and hygroscopicity of the fabric. At the same time, the hardness of the two is low, which can improve the softness of polyvinyl alcohol fiber. The layered structure of mica powder makes polyvinyl alcohol fiber have good toughness, making the fiber not easy to break when subjected to external forces, increasing the flexibility and impact resistance of the fiber, making it not easy to break during processing or use. At the same time, the three can increase the friction of polyvinyl alcohol fiber, increase the friction between the fabric and the skin, and reduce the situation of clothing moving up.

[0015] Preferably, the components of the coagulation bath are 50-70 g / L sulfuric acid, 90-110 g / L zinc sulfate, 180-200 g / L sodium sulfate, the reaction temperature is 50-60° C., the spinning rate is 50-60 m / min, and the immersion time is 10-15 s.

[0016] By adopting the above technical solution and optimizing the components of the coagulation bath, the structure of the polyvinyl alcohol fiber is uniform and delicate, the touch is soft and comfortable, and the friction is good. At the same time, a good air permeable channel and moisture absorption structure are formed inside the polyvinyl alcohol fiber, which can keep the skin dry and comfortable.

[0017] Preferably, the number average molecular weight of the polyvinyl alcohol is 50,000-220,000.

[0018] By adopting the above technical solution, the number average molecular weight of polyvinyl alcohol is optimized, and a relatively stable molecular chain structure can be formed, so that the polyethylene fiber has higher softness, skin affinity and friction.

[0019] Preferably, the vinyl content of the vinyl polysiloxane is 0.5-2%, and the number average molecular weight is 5000-20000.

[0020] By adopting the above technical solution, the vinyl content and number average molecular weight of vinyl polysiloxane are optimized, which helps to form a microporous structure inside the fiber, thereby improving the breathability of the fabric, allowing the fabric to better regulate air circulation and keep the skin dry and comfortable. At the same time, it helps to avoid the problem of clothing fitting the body and moving up due to static electricity, thereby improving wearing comfort.

[0021] Preferably, the modal fiber is pretreated by the following method: The modal fiber is immersed in the pretreatment agent for 1-2 hours, taken out and dried to obtain the pretreated modal fiber; The pretreatment agent is obtained by mixing sodium acetate, citric acid, anionic polyacrylamide, an antistatic agent and water in a weight ratio of 1: (0.4-0.6): (2-3): (1-2): 15.

[0022] By adopting the above technical scheme, the friction coefficient and electrostatic effect of modal fiber are reduced, making modal fiber easier to comb and twist, thereby improving spinning efficiency and yarn quality. At the same time, the mechanical strength of modal fiber is improved. Modal fiber is made of natural wood pulp and its structure is relatively fragile. During the spinning and weaving process, the fiber is susceptible to mechanical damage. Through pretreatment, a protective film can be formed on the fiber surface to reduce the damage of the fiber during subsequent processing, thereby protecting the fiber structure and extending the service life of the fabric. Among them, organic acids such as sodium acetate and citric acid help soften the fiber, making the fabric softer and more comfortable. The addition of antistatic agents significantly reduces the electrostatic effect of the fabric and reduces the discomfort when wearing. Anionic polyacrylamide may form a protective film by adsorbing on the fiber surface to reduce the damage of the fiber during subsequent processing.

[0023] Preferably, the spandex is pretreated by the following method: The spandex fiber is immersed in the pretreatment solution, heated to 50-60°C, immersed for 3-4 hours, rinsed with clean water, taken out and dried, and the pretreated spandex fiber is obtained; The pretreatment liquid is obtained by mixing 15-20% sodium hydroxide solution, sodium alginate, water-soluble chitosan and water in a ratio of 10: (3-5): (5-8): 20.

[0024] By adopting the above technical solution, the air permeability and skin affinity of spandex are improved. The sodium hydroxide solution in the pretreatment solution may have activated the surface of spandex, increased the hydrophilicity of the surface of spandex, and made it easier for the subsequently added sodium alginate and water-soluble chitosan to combine with the fiber. Natural polymer compounds such as sodium alginate and water-soluble chitosan may combine with the fiber surface through chemical bonds or physical adsorption to form a protective film, which plays a role in lubrication, softening and protection.

[0025] In a second aspect, the present application provides a method for preparing a peptide protein fiber fabric, using the following technical solution: A method for preparing a peptide protein fiber fabric comprises the following preparation steps: S1, spinning modal fiber, polyvinyl alcohol fiber and spandex into composite yarn; S2. Spinning the composite yarn into fabric.

[0026] By adopting the above technical solution, the prepared fabric has good air permeability and moisture permeability, softness and friction, and is suitable for clothing. After being prepared into clothing, it is not easy to move up when the baby is lying flat or moving.

[0027] Preferably, the modal fiber, the polyvinyl alcohol fiber and the spandex all have a fineness of 1-20D.

[0028] By adopting the above technical solution, the fineness of modal fiber, polyvinyl alcohol fiber and spandex is optimized, making the fabric softer and more delicate, improving the wearing comfort, and at the same time helping to increase the air permeability, moisture absorption and friction of the fabric.

[0029] In summary, this application has the following beneficial effects: 1. The synergistic effect of modal fiber, modified polyvinyl alcohol fiber and spandex in the fabric makes the fabric soft, skin-friendly, breathable and hygroscopic while also having good friction properties, which can ensure that the fabric will not move up easily when the baby is moving, thus effectively protecting the baby's belly from getting cold; 2. By adding ingredients such as vinyl polysiloxane, solid filler, and silane coupling agent, the surface properties and internal structure of the fiber can be improved, making it softer and smoother. Peptide protein helps to enhance the moisture retention of the fiber, further improve the breathability and moisture absorption of the fabric, and make the fiber more comfortable when in contact with the skin. The addition of solid filler and hydroxyethyl cellulose enables the polyvinyl alcohol fiber to form a tiny pore structure, which is conducive to the discharge of sweat and the dissipation of moisture, keeping the skin dry. At the same time, peptide protein, solid filler and hydroxyethyl cellulose can increase the friction between the polyvinyl alcohol fiber and the skin, thereby making the fabric close to the skin and not easy to shift. Vinyl polysiloxane can improve the antistatic properties of the fabric. In dry weather, the fabric is not easy to generate static electricity, thus avoiding the problem of clothing fitting the body and moving up due to static electricity. DETAILED DESCRIPTION

[0030] Preparation Example A spinning solution is prepared by the following method: Impregnation: 300 g of bamboo pulp raw material is immersed in a sodium hydroxide solution with a temperature of 45° C. and a mass fraction of 12% for 50 minutes to obtain alkali cellulose; Aging: The alkali cellulose is squeezed, crushed and then aged at a temperature of 20°C for 2 hours; Xanthation: add CS2 (25% by mass of alkali cellulose) to mix and carry out xanthation reaction at a temperature of 15°C for 30 minutes to generate cellulose xanthate; dissolve the cellulose xanthate in a 4% sodium hydroxide solution, and carry out dissolution, filtration, degassing and aging in sequence to obtain a spinning solution. Example

[0031] Modal fiber was purchased from Zhangjiagang Fengmao Textile Co., Ltd.

[0032] Spandex was purchased from Zhangjiagang Jinqiuyuan Textile Co., Ltd.

[0033] The peptide protein is bovine collagen, which was purchased from Zhengzhou Best Food Additive Co., Ltd. and implemented according to the national standard.

[0034] Example 1 A peptide protein fiber fabric is prepared by the following method: S1, spinning 500g of modal fiber, 350g of polyvinyl alcohol fiber and 150g of spandex into composite yarn; S2. Spinning the composite yarn into fabric.

[0035] The polyvinyl alcohol fiber is prepared by the following method: 1) dissolving 400 g of polyvinyl alcohol in 800 g of an organic solvent (ethyl acetate), and then adding 200 g of the spinning solution in the preparation example to obtain a polyvinyl alcohol solution; 2) adding 40 g of vinyl polysiloxane, 120 g of solid filler (shell powder), 20 g of silane coupling agent (acetyltrimethoxysilane), 200 g of peptide protein, 20 g of fatty acid sulfonalkyl ester (sodium N-oleoyl-N-methyl taurate) and 40 g of hydroxyethyl cellulose to a polyvinyl alcohol solvent to obtain a mixed solution; 3) The mixed solution is spun by wet spinning, coagulated and drawn in a coagulation bath, and then hydroformylated in an acetal solution, oiled, dried, and curled to obtain polyvinyl alcohol fibers.

[0036] The composition of the coagulation bath is 50 g / L sulfuric acid, 90 g / L zinc sulfate, 180 g / L sodium sulfate, the reaction temperature is 50° C., the spinning rate is 50 m / min, and the immersion time is 10 s.

[0037] The number average molecular weight of polyvinyl alcohol is 50,000.

[0038] The vinyl polysiloxane has an ethylene content of 0.5% and a number average molecular weight of 5,000.

[0039] The fineness of modal fiber, polyvinyl alcohol fiber and spandex is 1D.

[0040] The difference between Example 2-3 and Example 1 is that the types, amounts and experimental parameters of the raw materials for preparing the polyvinyl alcohol fibers are different. The specific differences are shown in Table 1: Table 1 Types, amounts and experimental parameters of raw materials for preparing polyvinyl alcohol fibers in Examples 1-3 Example 4 A peptide protein fiber fabric. The difference between this embodiment and embodiment 1 is that the weight of the modal fiber is 450g, the weight of the polyvinyl alcohol fiber is 380g, and the weight of the spandex is 170g.

[0041] The fineness of modal fiber, polyvinyl alcohol fiber and spandex is 10D.

[0042] Example 5 A peptide protein fiber fabric. The difference between this embodiment and embodiment 1 is that the weight of the modal fiber is 400g, the weight of the polyvinyl alcohol fiber is 400g, and the weight of the spandex is 20g.

[0043] The fineness of modal fiber, polyvinyl alcohol fiber and spandex is 20D.

[0044] Example 6 A peptide protein fiber fabric. The difference between this embodiment and embodiment 1 is that the solid filler is obtained by mixing shell powder, diatomaceous earth and mica powder in a weight ratio of 4:3:1.

[0045] Example 7 A peptide protein fiber fabric. The difference between this embodiment and embodiment 1 is that the solid filler is obtained by mixing shell powder, diatomaceous earth and mica powder in a weight ratio of 6:3:1.

[0046] Example 8 A peptide protein fiber fabric. The difference between this embodiment and embodiment 6 is that the solid filler is obtained by mixing shell powder and diatomaceous earth in a weight ratio of 6:3.

[0047] Example 9 A peptide protein fiber fabric. The difference between this embodiment and embodiment 6 is that the solid filler is obtained by mixing shell powder and mica powder in a weight ratio of 6:1.

[0048] Example 10 A peptide protein fiber fabric. The difference between this embodiment and embodiment 6 is that the solid filler is obtained by mixing diatomaceous earth and mica powder in a weight ratio of 3:1.

[0049] Embodiment 11 A peptide protein fiber fabric, the difference between this embodiment and embodiment 1 is that the modal fiber is pretreated by the following method: The modal fiber is immersed in the pretreatment agent for 1 hour, taken out and dried, thereby obtaining the pretreated modal fiber; The pretreatment agent is obtained by mixing sodium acetate, citric acid, anionic polyacrylamide, an antistatic agent and water in a weight ratio of 1:0.4:2:1:15.

[0050] Example 12 A peptide protein fiber fabric, the difference between this embodiment and embodiment 6 is that the modal fiber is pretreated by the following method: The modal fiber is immersed in the pretreatment agent for 1 hour, taken out and dried, and the pretreated modal fiber is obtained; The pretreatment agent is obtained by mixing sodium acetate, citric acid, anionic polyacrylamide, an antistatic agent and water in a weight ratio of 1:0.6:3:2:15.

[0051] Embodiment 13 A peptide protein fiber fabric, the difference between this embodiment and embodiment 1 is that the spandex is pretreated by the following method: soaking the spandex fiber in a pretreatment solution, heating to 50° C., soaking for 3 hours, rinsing with clean water, taking out and drying, to obtain pretreated spandex fiber; The pretreatment liquid is obtained by mixing 15% sodium hydroxide solution, sodium alginate, water-soluble chitosan and water in a ratio of 10:3:5:20 by mass.

[0052] Embodiment 14 A peptide protein fiber fabric, the difference between this embodiment and embodiment 6 is that the spandex is pretreated by the following method: soaking the spandex fiber in a pretreatment solution, heating to 60° C., soaking for 4 hours, rinsing with clean water, taking out and drying, to obtain pretreated spandex fiber; The pretreatment liquid is obtained by mixing 20% ​​sodium hydroxide solution, sodium alginate, water-soluble chitosan and water in a ratio of 10:5:8:20 by mass.

[0053] Embodiment 15 A peptide protein fiber fabric, the difference between this embodiment and embodiment 11 is that the spandex is pretreated by the following method: soaking the spandex fiber in a pretreatment solution, heating to 60° C., soaking for 4 hours, rinsing with clean water, taking out and drying, to obtain pretreated spandex fiber; The pretreatment liquid is obtained by mixing 20% ​​sodium hydroxide solution, sodium alginate, water-soluble chitosan and water in a ratio of 10:5:8:20 by mass.

[0054] Example 16 A peptide protein fiber fabric. The difference between this embodiment and embodiment 1 is that the number average molecular weight of polyvinyl alcohol is 40,000.

[0055] Comparative Example Comparative Example 1 A peptide protein fiber fabric. The difference between this comparative example and Example 1 is that no peptide protein is added in the preparation of the polyvinyl alcohol fiber.

[0056] Comparative Example 2 A peptide protein fiber fabric. The difference between this comparative example and Example 1 is that lysine is used instead of peptide protein in the preparation of polyvinyl alcohol fiber.

[0057] Comparative Example 3 A peptide protein fiber fabric. The difference between this comparative example and Example 1 is that xanthan gum is used instead of hydroxyethyl cellulose in the preparation of polyvinyl alcohol fiber.

[0058] Comparative Example 4 A peptide protein fiber fabric. The difference between this comparative example and Example 1 is that sodium dodecyl sulfate is used instead of vinyl polysiloxane in the preparation of polyvinyl alcohol fiber.

[0059] Comparative Example 5 A peptide protein fiber fabric. The difference between this comparative example and Example 1 is that polyvinyl alcohol is used instead of fatty acid sulfonalkyl ester in the preparation of polyvinyl alcohol fiber.

[0060] The molecular weight of polyvinyl alcohol is 1000.

[0061] Comparative Example 6 A peptide protein fiber fabric. The difference between this comparative example and Example 1 is that polypropylene fiber is used instead of spandex.

[0062] Polypropylene fiber was purchased from Zhongshan Sanmei Weaving Co., Ltd. with a fineness of 1D.

[0063] Comparative Example 7 A peptide protein fiber fabric. The difference between this comparative example and Example 1 is that cotton fiber is used instead of modal fiber.

[0064] Cotton fiber was purchased from Jinzhou Fuwen Thread Factory.

[0065] Detection method / test method Air permeability: Refer to GB / T5453 / 1997 to test the air permeability, and use YG461L air permeability test example and comparative example to prepare the air permeability of the peptide protein fiber fabric.

[0066] Moisture permeability: The breathability of the peptide protein fiber fabrics prepared in the examples and comparative examples was measured with reference to GB / T12704-1991.

[0067] Softness and skin-friendliness test: 100 women aged 20-40 were selected, and the peptide protein fiber fabrics prepared in the examples and comparative examples were rubbed back and forth on their arms, and the number of women who thought the peptide protein fiber fabrics were soft was recorded.

[0068] Breaking strength: According to GB / T3923.1-2013 "Tensile properties of textile fabrics Part 1: Determination of breaking strength and breaking elongation (strip method)", the tensile mechanical properties are measured. The experimental steps are as follows: cut the sample size to a rectangular sample of 200mm×60mm, the stretching speed is 300mm / min, and the clamping distance is 50mm. During the tensile test, the tensile tester will record the tensile force and tensile length of the sample in real time. After the test is completed, the breaking strength is calculated based on the test results.

[0069] Anti-upward movement test: 100 women were selected, and the peptide protein fiber fabrics prepared in the examples and comparative examples were made into tops. The 100 women were asked to wear the tops and roll left and right 50 times to observe whether the tops would move upward. The experimental data are shown in Table 2: Table 2 Experimental data of Examples 1-15 and Comparative Examples 1-8 Comparing Example 1 with Comparative Examples 1-5, the air permeability, moisture permeability, breaking strength and softness and skin-friendliness of Comparative Examples 1-5 are all lower than those of Example 1, and upward migration occurred in Comparative Examples 1, 2 and 5 in the anti-upward migration test, indicating that the polyvinyl alcohol fiber prepared by the formula of Tonggu present application can improve the air permeability, moisture permeability and softness and skin-friendliness of the fabric, and can effectively prevent the clothing prepared from the fabric from moving up.

[0070] Comparing Example 1 with Comparative Examples 6-7, the air permeability, moisture permeability and softness and skin-friendliness in Comparative Examples 6-7 are lower than those in Example 1, the breaking strength in Comparative Example 7 is lower than that in Example 1, and the upward movement phenomenon occurred in the anti-upward movement test in Comparative Example 6, indicating that in the present application, by using modal fiber, spandex and the special polyvinyl alcohol fiber of the present application as a common fabric, the air permeability and moisture permeability, softness and skin-friendliness and breaking strength of the fabric can be effectively improved, and the clothing made of the fabric can be effectively prevented from moving up.

[0071] Comparing Example 1 with Examples 6-7, the air permeability, moisture permeability and softness and skin-friendliness of Examples 6-7 are all higher than those of Example 1; Comparing Example 6 with Examples 8-10, the air permeability, moisture permeability and soft skin-friendliness of Examples 8-10 are higher than those of Example 6; It can be seen from Examples 1, 6, 7-8 that the air permeability, moisture permeability, softness, skin-friendliness and breaking strength of the fabric can be effectively improved by optimizing the type and amount of solid filler.

[0072] Comparing Example 1 with Example 11, the air permeability, moisture permeability and softness and skin-friendliness of Example 11 are all higher than those of Example 1. Comparing Example 6 with Example 12, the air permeability, moisture permeability and softness and skin-friendliness in Example 12 are all higher than those in Example 6; It can be seen from Examples 1 and 6, 6 and 12 that pre-treating modal fibers by the method of the present application can effectively improve the air permeability, moisture permeability, softness, skin-friendliness and breaking strength of the fabric.

[0073] Comparing Example 1 with Example 13, the air permeability, moisture permeability and softness and skin-friendliness of Example 13 are all higher than those of Example 1. Comparing Example 6 with Example 14, the air permeability, moisture permeability and softness and skin-friendliness in Example 14 are all higher than those in Example 6; Comparing Example 11 with Example 15, the air permeability, moisture permeability and softness and skin-friendliness of Example 15 are all higher than those of Example 11; It can be seen from Examples 1 and 13, 6 and 14, 11 and 15 that pre-treating spandex by the method of the present application can effectively improve the air permeability, moisture permeability, softness, skin-friendliness and breaking strength of the fabric.

[0074] Comparing Example 1 with Example 16, the air permeability, moisture permeability and softness and skin-friendliness in Example 16 are all higher than those in Example 1, indicating that the number average molecular weight of polyvinyl alcohol can effectively improve the air permeability, moisture permeability, softness and skin-friendliness and breaking strength of the fabric.

[0075] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A peptide protein fiber fabric, characterized in that: Prepared from the following raw materials in weight percentage: Modal fiber 40-50% Polyvinyl alcohol fiber 35-40% The remaining amount is spandex; The polyvinyl alcohol fiber is prepared by the following method: Dissolving polyvinyl alcohol in an organic solvent, and then adding spinning solution to obtain a polyvinyl alcohol solution; Adding vinyl polysiloxane, solid filler, silane coupling agent, peptide protein, fatty acid sulfonalkyl ester and hydroxyethyl cellulose to polyvinyl alcohol solvent to obtain a mixed solution; The mixed solution is spun by wet spinning process, coagulated and drawn in a coagulation bath, and then hydroformylated in acetal solution, oiled, dried and curled to obtain polyvinyl alcohol fiber.

2. A peptide protein fiber fabric according to claim 1, characterized in that: The weight parts of raw materials used to prepare the polyvinyl alcohol fiber are as follows: Polyvinyl alcohol 20-25 parts 40-50 parts of organic solvent 10-15 parts of spinning solution 2-5 parts of vinyl polysiloxane 6-8 parts solid filler Silane coupling agent 1-2 parts Peptide protein 10-15 parts 1-2 parts fatty acid sulfonyl ester Hydroxyethyl cellulose 2-5 parts.

3. The peptide protein fiber fabric according to claim 2, characterized in that: The solid filler is obtained by mixing shell powder, diatomaceous earth and mica powder in a weight ratio of (4-6):3:

1.

4. The peptide protein fiber fabric according to claim 1, characterized in that: The components of the coagulation bath are 50-70 g / L sulfuric acid, 90-110 g / L zinc sulfate, 180-200 g / L sodium sulfate, the reaction temperature is 50-60° C., the spinning rate is 50-60 m / min, and the immersion time is 10-15 s.

5. The peptide protein fiber fabric according to claim 4, characterized in that: The number average molecular weight of the polyvinyl alcohol is 50,000-220,000.

6. The peptide protein fiber fabric according to claim 1, characterized in that: The vinyl content of the vinyl polysiloxane is 0.5-2%, and the number average molecular weight is 5000-20000.

7. The peptide protein fiber fabric according to claim 1, characterized in that: The modal fiber is pretreated by the following method: The modal fiber is immersed in the pretreatment agent for 1-2 hours, taken out and dried to obtain the pretreated modal fiber; The pretreatment agent is obtained by mixing sodium acetate, citric acid, anionic polyacrylamide, an antistatic agent and water in a weight ratio of 1: (0.4-0.6): (2-3): (1-2):

15.

8. The peptide protein fiber fabric according to claim 1, characterized in that: The spandex is pretreated by the following method: The spandex fiber is immersed in the pretreatment solution, heated to 50-60° C., immersed for 3-4 hours, rinsed with clean water, taken out and dried, to obtain the pretreated spandex fiber; The pretreatment liquid is obtained by mixing 15-20% sodium hydroxide solution, sodium alginate, water-soluble chitosan and water in a ratio of 10: (3-5): (5-8): 20 by mass fraction.

9. A method for preparing a peptide protein fiber fabric according to any one of claims 1 to 8, characterized in that: The method comprises the following preparation steps: S1, spinning modal fiber, polyvinyl alcohol fiber and spandex into composite yarn; S2. Spinning the composite yarn into fabric.

10. The method for preparing a peptide protein fiber fabric according to claim 9, characterized in that: The modal fiber, the polyvinyl alcohol fiber and the spandex all have a fineness of 1-20D.

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