A silk fabric

Abstract

This application relates to the field of webbing, and discloses a silk webbing. A silk webbing is woven and heat-set from a blended yarn containing silk fibers. The blended yarn is made from 55-60 wt% pretreated silk fibers, 18-23 wt% spandex fibers, and 19-24 wt% nylon fibers. The pretreated silk fibers are obtained by sequentially soaking, enzymatically hydrolyzing, fluffing, and drying the silk fibers. This application, through pretreatment of the silk fibers, produces a silk webbing with good breathability, softness, and shape retention. When used in underwear shoulder straps, it is less prone to deformation and shrinkage after long-term wear and washing, and it is less likely to cause sweating and skin irritation, thus improving comfort in contact with the skin.

Description

Technical Field

[0001] This application relates to the field of webbing, and more particularly to a silk webbing. Background Technology

[0002] Silk ribbon, as a high-quality textile material, boasts numerous significant advantages. Silk fibers themselves are soft and smooth, with excellent breathability and moisture absorption, providing a comfortable and skin-friendly wearing experience. Its unique luster and texture give the ribbon an elegant and luxurious appearance, making it widely used in the lingerie industry. Silk ribbon can be used to make bra straps and other parts of lingerie, not only enhancing the aesthetics of the garment but also elevating its overall quality and grade, meeting consumers' demands for high-quality lingerie, and is particularly suitable for use in the product design of high-end lingerie brands.

[0003] Existing silk webbing is typically woven on traditional looms, using silk fibers as the main raw material. While it possesses good softness, prolonged use and washing can lead to issues such as pilling and snagging, affecting its appearance and lifespan. Furthermore, silk fibers are sensitive to environmental humidity and temperature, and are prone to shrinkage and deformation due to prolonged washing, resulting in poor dimensional stability of the silk webbing.

[0004] To address the aforementioned issues, several methods have been employed in existing technologies. For example, a small amount of fusible fiber is incorporated into the silk fibers. This fusible fiber undergoes slight melting during the high-temperature setting process of the silk webbing, bonding the yarns together and significantly enhancing the webbing's resistance to deformation, thus reducing deformation caused by stretching. Through these methods, existing silk webbing technologies have improved their performance to a certain extent, meeting basic usage requirements.

[0005] However, although methods such as incorporating fusible fibers can reduce the deformation and shrinkage properties of silk webbing, the fusible fibers, after being melted and bonded, reduce the breathability and softness of the silk webbing. This makes it easy for silk webbing used in bra straps to cause stuffiness and skin irritation, thus reducing the comfort of using silk webbing. Summary of the Invention

[0006] To address the problem that existing silk webbing containing fusible fibers, when used in underwear shoulder straps, easily causes sweating and skin irritation, reducing the breathability and softness of the silk webbing, this application provides a silk webbing.

[0007] In a first aspect, this application provides a silk webbing, which adopts the following technical solution: A silk webbing is woven and heat-set from a blended yarn containing silk fibers. The blended yarn is made by blending 55-60 wt% pretreated silk fibers, 18-23 wt% spandex fibers, and 19-24 wt% nylon fibers. The pretreated silk fibers are obtained by sequentially soaking, enzymatically hydrolyzing, fluffing, and drying the silk fibers.

[0008] By employing the above technical solution, a blended yarn is prepared by blending pretreated silk fibers, spandex fibers, and nylon fibers in a relatively optimal weight ratio. This blended yarn is then used to weave and heat-set silk webbing. The pretreated silk fibers retain the inherent advantages of silk fibers, such as softness, breathability, good moisture absorption, and excellent luster, providing a comfortable and skin-friendly feel to the silk webbing. Spandex fibers have high elasticity, which enhances the tensile strength and resilience of the silk webbing, making it less prone to loosening and deformation. Nylon fibers have high strength and good abrasion resistance, improving the durability of the silk webbing. The three fibers work synergistically, ensuring both the comfort and enhanced elasticity and durability of the silk webbing.

[0009] Pre-treatment of silk fibers involves soaking to fully saturate and fluff them; enzymatic hydrolysis removes impurities from the surface of the silk fibers, increases their pore structure, and further enhances their breathability and softness; fluffing treatment uses fluffing agents to make the fibers more fluffy, increasing the spacing between fibers, which helps improve breathability and also improves the feel and softness of the webbing.

[0010] By applying pre-treated silk fibers to silk webbing, heat setting allows the protein components of the silk fibers to bond and shape the webbing, eliminating the need for additional fusible yarn for shaping. When used in bra straps, it offers excellent breathability, preventing sweat buildup, and its softness prevents skin irritation, enhancing comfort. It also maintains its shape well, resisting deformation and shrinkage with prolonged wear and washing.

[0011] Preferably, the silk fiber is one or a combination of mulberry silk, tussah silk, castor silk, and cassava silk.

[0012] By adopting the above technical solutions, mulberry silk, tussah silk, castor silk, and cassava silk are used as silk fibers in silk webbing. Their inherent advantages can be used to give the webbing soft, smooth properties, as well as good breathability and moisture absorption. This makes the webbing more comfortable for underwear to come into contact with the skin, and its unique texture can enhance the aesthetics of the underwear.

[0013] Preferably, the blended yarn has a specification of 160-180D / 140-155F.

[0014] By adopting the above technical solution, a blended yarn of superior specifications is used to weave silk ribbons. This superior specification allows the silk ribbons to possess both suitable strength and softness. If the blended yarn is too coarse, the silk ribbons will be too stiff, reducing their flexibility and fit. When applied to bra straps, this will increase friction with the skin, easily causing marks and reducing wearing comfort. If the blended yarn is too fine, the silk ribbons will lack strength and are prone to breakage and damage during long-term use and washing. Furthermore, their shape retention will deteriorate, leading to deformation and shrinkage, affecting their lifespan and appearance.

[0015] Preferably, the pretreated silk fibers are obtained by the following pretreatment steps: S1. Soak the silk fibers in water and drain. S2. Use a fiber hydrolysant to enzymatically hydrolyze the soaked silk fibers, drain them, and obtain enzymatically hydrolyzed silk fibers. S3. Soak the enzymatically hydrolyzed silk fibers with a fluffing agent, wash with water, drain, and obtain fluffy silk fibers. S4. Dry the fluffy silk fibers to obtain pretreated silk fibers.

[0016] By employing the above technical solution, the silk fibers are first soaked in water to allow them to fully absorb water and swell, which helps the subsequent treatment agents penetrate better and lays the foundation for improving the performance of the silk fibers. Next, an enzymatic hydrolysis agent is used to treat the silk fibers, removing impurities and some fiber components from the surface, optimizing the fiber structure, and improving the fiber's softness and breathability. Then, a fluffing agent is used to soak the enzymatically hydrolyzed silk fibers, making them even fluffier, further increasing the gaps between fibers, and improving the fiber's breathability and elasticity. Finally, the fluffy silk fibers are dried. These pretreatment steps work together to produce a synergistic effect. During the heat setting process, the protein components of the silk fibers stabilize and bond the fibers together, resulting in pretreated silk fibers that, when applied to blended yarns woven into silk webbing, possess excellent breathability, softness, and shape retention. When used for underwear shoulder straps, they are less prone to deformation and shrinkage after long-term wear and washing, and are less likely to cause sweating and skin irritation, thus improving comfort in contact with the skin.

[0017] Preferably, the weight ratio of the fiber hydrolysate, water and silk fiber in step S2 is (0.2-0.4):100:(10-20).

[0018] By adopting the above technical solution and optimizing the ratio of enzymatic hydrolysant, water, and silk fiber, the fiber hydrolysant can fully exert its function, performing appropriate enzymatic hydrolysis on the silk fiber. This effectively removes impurities and some fiber components from the surface of the silk fiber, improving its softness and breathability. It exposes as much protein as possible without excessively damaging the silk fiber structure, thus ensuring the strength of the silk fiber. Consequently, the resulting silk webbing has better shape retention, softness, and breathability.

[0019] Preferably, the cellulosic agent in step S2 is prepared from the following raw materials by weight percentage: β-glucosidase 1-2% Exo-β-glucanase 2-3% Xylanase 0.8-1.5% Alginic acid 0.5-1.5% Dihydrogenated tallow methyl benzyl ammonium chloride 1-2% Remaining water.

[0020] By employing the above technical solution, the synergistic action of β-glucosidase, exo-β-glucanase, and xylanase in the fiber hydrolysant enables enzymatic hydrolysis of the fiber components of silk fibers. This effectively removes impurities and fiber components from the fiber surface, forming a uniform microporous structure on the fiber surface. This maximizes the exposure of the protein components of the silk fibers without damaging their strength, further enhancing their softness and breathability. Alginic acid and dihydrotallowylmethylbenzylammonium chloride work synergistically to form a thin, uniform adsorption film, allowing β-glucosidase, exo-β-glucanase, and xylanase to more uniformly and stably hydrolyze the silk fibers, further improving the performance of the pretreated silk fibers. This results in silk webbing with better breathability, softness, and shape retention.

[0021] Preferably, the enzymatic hydrolysis temperature in step S2 is 37-42℃, and the enzymatic hydrolysis time is 20-30 min.

[0022] By adopting the above technical solution, enzymatic hydrolysis of silk fibers can be carried out at a better enzymatic hydrolysis temperature and time, which can improve the enzymatic hydrolysis efficiency of the hydrolysant without excessively damaging the silk fibers.

[0023] Preferably, the weight ratio of the leavening agent, water and silk fiber in step S3 is (5-8):100:(10-20).

[0024] By adopting the above technical solution and optimizing the weight ratio of bulking agent, water and silk fiber, the bulking agent can play a full role, be fully dispersed and impregnated into the enzymatically hydrolyzed silk fiber, and allow the molecular chain segments of the enzymatically hydrolyzed silk fiber to fully extend and fluff up, thereby improving the softness and breathability of the blended yarn, and further enhancing the softness and breathability of the silk webbing.

[0025] Preferably, the leavening agent in step S3 is prepared from the following raw materials by weight percentage: N-hydroxypropyltrimethylammonium quaternary chloride chitosan 1-3% Quaternary ammonium salt modified organosilicon emulsion 2.5-4.5% Polyether-modified heptamethyltrisiloxane 1-2% Remaining water.

[0026] By employing the above technical solution, N-hydroxypropyltrimethylammonium quaternary chloride chitosan, carrying a positive charge, can adsorb onto the surface of enzymatically hydrolyzed silk fibers, increasing the electrostatic repulsion between fibers and causing them to separate, thus initially achieving a fluffing effect. Quaternary ammonium salt-modified silicone emulsion possesses excellent lubricity and softness, distributing evenly on the fiber surface, reducing inter-fiber friction, further promoting fiber fluffiness and improving softness. Polyether-modified heptamethyltrisiloxane exhibits excellent surface activity and wettability, quickly penetrating into the interior of silk fibers, enhancing the performance of N-hydroxypropyltrimethylammonium quaternary chloride chitosan and the quaternary ammonium salt-modified silicone emulsion. The synergistic effect of these three components allows for better fluffing treatment of enzymatically hydrolyzed silk fibers. Silk webbing treated with this fluffing agent exhibits better fluffiness, softness, and breathability, thereby improving the comfort of using the silk webbing.

[0027] Preferably, the soaking temperature in step S3 is 40-50℃ and the soaking time is 30-60 minutes.

[0028] By adopting the above technical solutions, the optimal fluffing time and temperature can improve the efficiency of fluffing, thereby enhancing the softness and breathability of silk webbing.

[0029] In summary, this application includes at least one of the following beneficial technical effects: 1. The silk webbing of this application is woven and shaped from a blended yarn containing pretreated silk fibers, spandex fibers, and nylon fibers. Heat setting allows the protein components of the silk fibers to bond and shape the webbing, eliminating the need for additional fusible yarn. The resulting silk webbing exhibits good breathability, softness, and shape retention. When used in underwear shoulder straps, it is less likely to cause sweating or skin irritation, and it is less prone to deformation and shrinkage with prolonged wear and washing.

[0030] 2. Pretreated silk fibers are obtained by soaking, enzymatic hydrolysis, fluffing and drying. This process removes impurities and fiber components from the surface of the silk fibers, exposes the protein components, and forms a uniform microporous structure on the surface of the silk fibers, thereby improving the fluffiness and softness, and thus enhancing the breathability, softness and shape retention of the silk webbing.

[0031] 3. The enzymatic hydrolysant is prepared from β-glucosidase, exoβ-glucanase, xylanase, alginic acid, dihydrotallowylmethylbenzylammonium chloride, and water. It is enzymatically hydrolyzed with water and silk fibers in a certain weight ratio at a certain temperature for a certain time. It can decompose impurities on the fiber surface and part of the fiber structure, expose protein components, optimize fiber structure, enhance air permeability and softness, and improve the shaping performance of silk webbing.

[0032] 4. The bulking agent is made from N-hydroxypropyltrimethylammonium quaternary chloride chitosan, quaternary ammonium salt modified organosilicon emulsion, polyether modified heptamethyltrisiloxane and water. When soaked with water and silk fibers at a certain weight ratio and at a certain temperature for a certain period of time, it can make the fibers fully stretch and disperse, increase the spacing, improve the bulkiness, and enhance the air permeability, softness and shape retention of silk weave. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the embodiments.

[0034] The following are some of the sources and specifications of the raw materials used in this application. The raw materials used in the preparation examples and embodiments of this application can all be obtained commercially, including but not limited to the following models and manufacturers of raw materials. Raw materials with equivalent performance can also be used: 1. β-glucosidase: Enzyme activity 20,000 U / g; 2. Exoβ-glucanase: Enzyme activity 100,000 U / g; 3. Xylanase: Enzyme activity 20,000 U / g; 4. Quaternary ammonium salt modified organosilicon emulsion: Cosmethicone® K-5283, Guangdong Biaomei Silicon Fluorine New Materials; 5. Polyether-modified heptamethyltrisiloxane: Ranabai, CAS 27306-78-1, content 99%.

[0035] Example of preparation of cellulase hydrolysate Preparation Example 1 Preparation Example 1 discloses a cellulase hydrolysant, which is prepared by the following steps: 0.05 kg of alginic acid and 0.2 kg of dihydrotallowized methyl benzyl ammonium chloride were added to 9.23 kg of water and dissolved. Then, 0.1 kg of β-glucosidase, 0.3 kg of exo-β-glucanase, and 0.12 kg of xylanase were added and stirred evenly to obtain the cellulase hydrolysate.

[0036] Preparation Examples 2-3 The difference between Preparation Example 2-3 and Preparation Example 1 lies in the amount of raw materials used and the preparation conditions, as detailed in Table 1 below.

[0037] Table 1. Parameters for Preparation Examples 1-3

[0038] Preparation Example 4 The difference between Preparation Example 4 and Preparation Example 1 is that xylanase was replaced with β-glucosidase in equal amounts, while the rest is the same as Preparation Example 1.

[0039] Preparation Example 5 The difference between Preparation Example 5 and Preparation Example 1 is that the dihydrogenated tallow methyl benzyl ammonium chloride is replaced by an equal amount of dodecyl dimethyl benzyl ammonium chloride, otherwise it is the same as Preparation Example 1.

[0040] Preparation Example 6 Preparation Example 6 discloses a leavening agent, which is prepared by the following steps: 0.1 kg of N-hydroxypropyltrimethylammonium chloride chitosan, 0.35 kg of quaternary ammonium salt modified organosilicon emulsion, and 0.1 kg of polyether modified heptamethyltrisiloxane were added to 9.35 kg of water and stirred evenly to obtain a leavening agent.

[0041] Preparation Examples 7-8 The difference between Preparation Examples 7-8 and Preparation Example 6 lies in the amount of raw materials used and the preparation conditions, as detailed in Table 2 below.

[0042] Table 2 Parameter table for preparation examples 6-8

[0043] Preparation Example 9 The difference between Preparation Example 9 and Preparation Example 6 is that the quaternary ammonium salt modified organosilicon emulsion is replaced with an amino silicone oil emulsion in equal amounts, while the rest is the same as Preparation Example 6.

[0044] Preparation Example 10 The difference between Preparation Example 10 and Preparation Example 6 is that polyether-modified heptamethyltrisiloxane is replaced with vinyltrimethoxysilane in equal amounts, while the rest is the same as Preparation Example 6. Example Example 1

[0045] Example 1 discloses a silk webbing, which is woven by a double-sided weaving process using a blended yarn containing silk fibers and heat-set at a temperature of 110°C. The blended yarn is made by blending 5.5 kg of pretreated silk fibers, 2.3 kg of spandex fibers and 2.2 kg of nylon fibers.

[0046] The silk fiber is one or a combination of mulberry silk, tussah silk, castor silk, and cassava silk. In this embodiment, the silk fiber is mulberry silk, and the blended yarn has a specification of 160-180D / 140-155F. In this embodiment, the blended yarn has a specification of 160D / 140F.

[0047] Pretreated silk fibers are obtained by the following steps: S1. Soak the silk fibers in water at a temperature of 25°C for 2 hours, then drain. S2. Add 0.02 kg of the fiber hydrolysant prepared in Example 1 to 10 kg of water, add 1 kg of silk fiber for soaking treatment, control the hydrolysis temperature at 37°C and the hydrolysis time at 30 min, drain, and obtain hydrolyzed silk fiber. S3. Add 0.8 kg of the fluffing agent prepared in Example 6 to 10 kg of water, add 1.5 kg of the enzymatically hydrolyzed silk fiber prepared in step S2 for soaking treatment, control the soaking treatment temperature to 40°C, soaking time to 60 min, wash with water, drain, and obtain fluffy silk fiber. S4. The fluffy silk fibers are dried with hot air at a temperature of 80°C to obtain pretreated silk fibers.

[0048] Example 2-3 The difference between Examples 2-3 and Example 1 lies in the amount of raw materials used and the preparation process parameters, as detailed in Table 3 below.

[0049] Table 3 Parameter table for Examples 1-3

[0050] Example 4

[0051] The difference between Example 4 and Example 1 is that the cellulase hydrolysant is derived from Preparation Example 4, while the rest is the same as Example 1.

[0052] Example 5

[0053] The difference between Example 5 and Example 1 is that the cellulase hydrolysant is derived from Preparation Example 5, while the rest is the same as Example 1.

[0054] Example 6

[0055] The difference between Example 6 and Example 1 is that the leavening agent is derived from Preparation Example 9, while the rest is the same as Example 1.

[0056] Example 7

[0057] The difference between Example 7 and Example 1 is that the leavening agent is derived from Preparation Example 10, while the rest is the same as Example 1. Comparative Example

[0058] Comparative Example 1 The difference between Comparative Example 1 and Example 1 is that the pretreatment step of the pretreated silk fibers does not include the enzymatic hydrolysis treatment in step S2, but directly performs fluffing treatment on the silk fibers soaked in step S1. Otherwise, it is the same as Example 1.

[0059] Comparative Example 2 The difference between Comparative Example 2 and Example 1 is that the pretreatment step of the pretreated silk fiber does not include the fluffing treatment in step S3, and the enzymatically hydrolyzed silk fiber obtained in step S2 is directly dried by hot air. The rest is the same as in Example 1.

[0060] Comparative Example 3 The difference between Comparative Example 3 and Example 1 is that in the pretreatment step of pretreating silk fibers, the fluffing agent in step S3 is directly added to the water in step S2, and fluffing treatment is carried out at the same time as enzymatic hydrolysis. Then, hot air drying is performed. The rest is the same as Example 1.

[0061] Comparative Example 4 The difference between Comparative Example 4 and Example 1 is that 5.5 kg of pretreated silk fiber was replaced with 5.3 kg of pretreated silk fiber and 0.2 kg of fusible fiber. The fusible fiber was commercially available polyester fusible fiber with a melting point of 110-130°C. Everything else was the same as in Example 1. Performance testing

[0062] The following performance tests were performed on the embodiments and comparative examples: A 1cm wide silk ribbon was used as the test sample: 1. Breathability test: The air permeability (unit: mm / s) was tested according to the method in GB / T 5453-1997 "Determination of air permeability of textile fabrics", and the test results were recorded.

[0063] 2. Softness test The bending stiffness (unit: mN•cm) of silk webbing was tested according to the test method in GB / T 18318.1-2009 "Determination of bending properties of textiles", and the test results were recorded.

[0064] 3. Deformation and shrinkage performance test The width of the silk ribbon before washing was tested. Then, the silk ribbon was washed using a washing machine with 1% commercially available laundry detergent. The standard mode (15 minutes, washing + spin-drying) was selected, and the ribbon was washed 25 times. After drying, the width of the silk ribbon after washing was tested again. The width change rate of the silk ribbon (unit: %) was calculated as follows: Width change rate = (width after washing - width before washing) / width before washing * 100%. The test results were measured and recorded.

[0065] The following are the performance test data of the silk webbing of Examples 1-7 and Comparative Examples 1-4, as detailed in Table 4 below.

[0066] Table 4 Performance data of Examples 1-7 and Comparative Examples 1-4

[0067] Based on Examples 1-3 and Examples 4-5 and Table 4, it can be concluded that optimizing the composition of the fiber hydrolysant of this application can improve the air permeability, softness and shape retention of silk webbing. Compared with Example 1, Examples 4-5 changed the composition of the fiber hydrolysant, and the resulting silk webbing had a significantly increased deformation rate, reduced air permeability and improved bending strength.

[0068] Based on Examples 1-3 and Examples 6-7 and Table 4, it can be concluded that optimizing the composition of the leavening agent in this application can improve the air permeability, softness and shape retention of silk webbing. Compared with Example 1, Examples 6-7 changed the composition of the leavening agent, and the air permeability of the resulting silk webbing was significantly reduced, the bending strength was significantly increased, and the deformation rate was also increased.

[0069] Based on Examples 1-3 and Comparative Examples 1-3, and in conjunction with Table 4, it can be concluded that the silk webbing prepared using the enzymatic hydrolysis followed by fluffing process of this application has good air permeability, softness, and shape retention. In Comparative Example 1, no enzymatic hydrolysis treatment was performed, and in Comparative Example 2, no fluffing treatment was performed. In Comparative Example 2, both fiber hydrolysate and fluffing agent were added simultaneously for treatment, resulting in a significant decrease in air permeability, a significant increase in bending strength, and a significant increase in deformation rate of the prepared silk webbing.

[0070] Based on Examples 1-3 and Comparative Example 4, and in conjunction with Table 4, it can be concluded that in Comparative Example 4, replacing some of the pretreated silk fibers with fusible fibers slightly improved the deformation rate of the resulting silk webbing, but significantly reduced its breathability and softness. This may be because the addition of fusible fibers caused the silk webbing to become overly bonded, thereby reducing its breathability and softness.

[0071] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A silk ribbon, characterized by, It is made by weaving and heat setting of blended yarn containing silk fibers. The blended yarn is made by blending 55-60wt% pretreated silk fibers, 18-23wt% spandex fibers and 19-24wt% nylon fibers. The pretreated silk fibers are obtained by sequentially soaking, enzymatic hydrolysis, fluffing and drying the silk fibers.

2. The silk fabric of claim 1, wherein, The silk fiber is one or a combination of mulberry silk, tussah silk, castor silk, and cassava silk.

3. The silk fabric of claim 1, wherein, The blended yarn has a specification of 160-180D / 140-155F.

4. The silk fabric according to any one of claims 1 to 3, wherein, The pretreated silk fibers are obtained by the following pretreatment steps: S1. Soak the silk fibers in water and drain. S2. Use a fiber hydrolysant to enzymatically hydrolyze the soaked silk fibers, drain them, and obtain enzymatically hydrolyzed silk fibers. S3. Soak the enzymatically hydrolyzed silk fibers with a fluffing agent, wash with water, drain, and obtain fluffy silk fibers. S4. Dry the fluffy silk fibers to obtain pretreated silk fibers.

5. The silk fabric of claim 4, wherein, The weight ratio of fiber hydrolysate, water and silk fiber in step S2 is (0.2-0.4):100:(10-20).

6. The silk fabric of claim 4, wherein, The cellulosic hydrolysant in step S2 is prepared from the following raw materials by weight percentage: β-glucosidase 1-2% Exo-β-glucanase 2-3% Xylanase 0.8-1.5% Alginic acid 0.5-1.5% Dihydrogenated tallow methyl benzyl ammonium chloride 1-2% Remaining water.

7. The silk fabric of claim 4, wherein the silk fabric is a silk ribbon. The enzymatic hydrolysis temperature in step S2 is 37-42℃, and the enzymatic hydrolysis time is 20-30 min.

8. The silk fabric of claim 4, wherein the silk fabric is a silk ribbon. The weight ratio of the leavening agent, water and silk fiber in step S3 is (5-8):100:(10-20).

9. The silk fabric of claim 4, wherein, The leavening agent in step S3 is prepared from the following raw materials by weight percentage: N-hydroxypropyltrimethylammonium quaternary chloride chitosan 1-3% Quaternary ammonium salt modified organosilicon emulsion 2.5-4.5% Polyether-modified heptamethyltrisiloxane 1-2% Remaining water.

10. The silk fabric of claim 4, wherein, The soaking temperature in step S3 is 40-50℃, and the soaking time is 30-60 minutes.

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