Stretch-proof pleated fabric and its preparation method

Abstract

This invention relates to the field of fabric technology and provides a tensile-resistant folded fabric and its preparation method. The tensile-resistant folded fabric includes a base layer and a folded layer. The folded layer has several irregularly arranged pleats. The folded layer includes the following raw materials: polyester fiber, silk fiber, spider silk fiber, polylactic acid fiber, nano bamboo charcoal fiber, modified polyethylene glycol, nano zinc oxide dispersion, and softener. This invention adds modified polyethylene glycol to the folded layer raw materials and grafts amino groups onto the ends of the polyethylene glycol, effectively improving the reactivity of the polyethylene glycol. This allows it to adhere to the surface of various fibers and form a macromolecular network structure, giving the folded layer a stable structure and improving its tensile strength. The addition of nano zinc oxide dispersion gives the fabric a bactericidal function, improves the dispersion ability of nano zinc oxide in the material, and combines with other components to form a stable structure, further improving the tensile strength of the folded layer.

Description

Technical Field

[0001] This invention belongs to the field of fabric technology, and in particular relates to a tensile-resistant folding fabric and its preparation method. Background Technology

[0002] Fabrics are commonly used materials in decoration, including various types of fabrics such as chemical fiber carpets, non-woven wall coverings, linen, nylon, colored adhesive tape, and flannel.

[0003] Folded fabric is a type of fabric. Currently, folded fabric has poor stretchability and is easily torn during use, causing great trouble for users. Summary of the Invention

[0004] This invention provides a tensile-resistant folding fabric, which aims to solve the above-mentioned problems.

[0005] The present invention is achieved as follows: a tensile-resistant folding fabric, comprising a base layer and a folding layer, wherein the folding layer has a plurality of irregularly arranged pleats, and the folding layer comprises the following raw materials in parts by weight: 50-70 parts polyester fiber, 6-12 parts silk fiber, 5-15 parts spider silk fiber, 15-25 parts polylactic acid fiber, 10-20 parts nano bamboo charcoal fiber, 6-10 parts modified polyethylene glycol, 5-11 parts nano zinc oxide dispersion, and 1-3 parts softener.

[0006] Preferably, the folded layer comprises the following raw materials in parts by weight: 55-65 parts polyester fiber, 8-10 parts silk fiber, 7-12 parts spider silk fiber, 18-23 parts polylactic acid fiber, 12-18 parts nano bamboo charcoal fiber, 7-9 parts modified polyethylene glycol, 7-10 parts nano zinc oxide dispersion, and 1.5-2.5 parts softener.

[0007] Preferably, the folded layer comprises the following raw materials in parts by weight: 60 parts polyester fiber, 9 parts silk fiber, 10 parts spider silk fiber, 20 parts polylactic acid fiber, 15 parts nano bamboo charcoal fiber, 8 parts modified polyethylene glycol, 8 parts nano zinc oxide dispersion, and 2 parts softener.

[0008] Preferably, the modified polyethylene glycol is prepared as follows: 15-25 parts by weight of polyethylene glycol are added dropwise to 45-70 parts by weight of sulfone bromide. During the dropwise addition, the system temperature is maintained at 2-4°C, then raised to 40-60°C, and then added dropwise to 100-120 parts by weight of anhydrous diethyl ether. The mixture is filtered, washed, and dried. The product is dissolved in 60-80 parts by weight of N,N-dimethylformamide, and 2-5 parts by weight of 3-amino-1,2-propanediol and 3-6 parts by weight of diethylamine are added. The mixture is heated to 80-90°C and stirred for 2-4 hours. The mixture is extracted with dichloromethane, precipitated with anhydrous diethyl ether, and vacuum dried to obtain modified polyethylene glycol. By treating the polyethylene glycol, amino groups are grafted onto the ends of the polyethylene glycol, effectively improving the reactivity of the polyethylene glycol. The polyethylene glycol adheres to the surface of various fibers and forms a macromolecular network structure, giving the folded layer a stable structure and improving its tensile properties.

[0009] Preferably, the preparation method of the nano zinc oxide dispersion is as follows: 30-50% by mass of an anionic dispersant, 5-10% by mass of a titanate coupling agent, and 0.5%-1.5% by mass of anionic zinc oxide are dissolved in deionized water. Nano zinc oxide is added and mixed evenly. The mixture is then ground and dispersed using a sand mill to obtain a nano zinc oxide dispersion with an average particle size <200nm. Nano zinc oxide can sterilize without ultraviolet irradiation, thus giving the fabric a sterilization function. Nano zinc oxide has a large specific surface area and high specific surface energy. By adding anionic dispersant and titanate coupling agent, the nano zinc oxide is modified to improve its dispersion ability in the material, allowing it to combine with other components to form a stable structure and improve the tensile strength of the folded layer.

[0010] Preferably, the anionic dispersant is one or more of anionic polyacrylamide, sodium polyacrylate, and ammonium polycarboxylate.

[0011] Preferably, the defoamer is at least one of polydimethylsiloxane defoamer and polyether defoamer.

[0012] Preferably, the softener is polysiloxane or dimethyl silicone oil.

[0013] The present invention also provides a method for preparing the above-mentioned tensile folding fabric, comprising the following steps:

[0014] Weigh out each raw material for the folded layer according to the specified ratio;

[0015] Polyester fiber, silk fiber, spider silk fiber, polylactic acid fiber, nano bamboo charcoal fiber, modified polyethylene glycol, and nano zinc oxide dispersion are mixed with softener and 100-120 parts of water at 40-45℃, stirred evenly, and then dried and shaped.

[0016] The above-mentioned molding materials are processed through opening, cotton opening, drawing, roving, and spinning to produce functional yarns, which are then woven into fabric.

[0017] The fabric is piled in 0.8-1.2 g / L of desizing enzyme for 40-50 minutes at a temperature of 42-44℃, then rinsed with clean water for 0.3-0.5 hours, dried in a dryer at a temperature of 100-120℃, and then pleated to obtain a folded layer.

[0018] By combining the folded layer with the base layer, a folded fabric is obtained.

[0019] Compared with the prior art, the embodiments of this application have the following main advantages:

[0020] The tensile-resistant folded fabric provided by this invention comprises a base layer and a folded layer. Modified polyethylene glycol is added to the raw material of the folded layer, and amino groups are grafted onto the ends of the polyethylene glycol, effectively improving the reactivity of the polyethylene glycol. This allows it to adhere to the surfaces of various fibers and form a macromolecular network structure, giving the folded layer a stable structure and improving its tensile strength. Furthermore, a nano-zinc oxide dispersion is added. Nano-zinc oxide can sterilize without ultraviolet irradiation, thus giving the fabric a bactericidal function. The nano-zinc oxide has a large specific surface area and high specific surface energy, improving its dispersion ability in the material and allowing it to combine with other components to form a stable structure, thereby enhancing the tensile strength of the folded layer. Attached Figure Description

[0021] Figure 1 This is a flowchart illustrating the preparation process of a tensile-resistant folded fabric provided by the present invention. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] Example 1

[0025] This invention provides a tensile-resistant folding fabric, comprising a base layer and a folding layer. The folding layer has several irregularly arranged pleats. The folding layer comprises the following raw materials in parts by weight: 50-70 parts polyester fiber, 6-12 parts silk fiber, 5-15 parts spider silk fiber, 15-25 parts polylactic acid fiber, 10-20 parts nano bamboo charcoal fiber, 6-10 parts modified polyethylene glycol, 5-11 parts nano zinc oxide dispersion, and 1-3 parts softener.

[0026] The method for preparing the tensile folding fabric described in this embodiment is as follows: Figure 1 As shown, it includes the following steps:

[0027] Weigh out each raw material for the folded layer according to the specified ratio;

[0028] Polyester fiber, silk fiber, spider silk fiber, polylactic acid fiber, nano bamboo charcoal fiber, modified polyethylene glycol, and nano zinc oxide dispersion are mixed with softener and 100-120 parts of water at 40-45℃, stirred evenly, and then dried and shaped.

[0029] The above-mentioned molding materials are processed through opening, cotton opening, drawing, roving, and spinning to produce functional yarns, which are then woven into fabric.

[0030] The fabric is piled in 0.8-1.2 g / L of desizing enzyme for 40-50 minutes at a temperature of 42-44℃, then rinsed with clean water for 0.3-0.5 hours, dried in a dryer at a temperature of 100-120℃, and then pleated to obtain a folded layer.

[0031] Folded layers can be combined with base layers through methods such as sewing or gluing to obtain folded fabric.

[0032] Specifically, the preparation method of the modified polyethylene glycol is as follows: 15-25 parts by weight of polyethylene glycol are added dropwise to 45-70 parts by weight of sulfone bromide. During the dropwise addition, the system temperature is maintained at 2-4℃, and then the temperature is raised to 40-60℃. Then, it is added dropwise to 100-120 parts by weight of anhydrous diethyl ether. The mixture is filtered, washed, and dried. The product is dissolved in 60-80 parts by weight of N,N-dimethylformamide. 2-5 parts by weight of 3-amino-1,2-propanediol and 3-6 parts by weight of diethylamine are added. The mixture is heated to 80-90℃ and stirred for 2-4 hours. It is extracted with dichloromethane, precipitated with anhydrous diethyl ether, and dried under vacuum to obtain the modified polyethylene glycol.

[0033] In this embodiment, the preparation method of the nano zinc oxide dispersion is as follows: 30-50% anionic dispersant, 5-10% titanate coupling agent, and 0.5%-1.5% defoamer of nano zinc oxide are dissolved in deionized water, nano zinc oxide is added and mixed evenly, and then ground and dispersed using a sand mill to obtain a nano zinc oxide dispersion with an average particle size of <200nm.

[0034] Preferably, the anionic dispersant is one or more of anionic polyacrylamide, sodium polyacrylate, and ammonium polycarboxylate.

[0035] Furthermore, the defoamer is at least one of polydimethylsiloxane defoamer and polyether defoamer.

[0036] In specific implementations, the softener is polysiloxane or dimethyl silicone oil.

[0037] Example 2

[0038] This invention provides a tensile-resistant folding fabric, comprising a base layer and a folding layer, wherein the folding layer has several irregularly arranged pleats, and the folding layer comprises the following raw materials in parts by weight: 55-65 parts polyester fiber, 8-10 parts silk fiber, 7-12 parts spider silk fiber, 18-23 parts polylactic acid fiber, 12-18 parts nano bamboo charcoal fiber, 7-9 parts modified polyethylene glycol, 7-10 parts nano zinc oxide dispersion, and 1.5-2.5 parts softener.

[0039] The method for preparing the tensile folding fabric described in this embodiment is as follows: Figure 1 As shown, it includes the following steps:

[0040] Weigh out each raw material for the folded layer according to the specified ratio;

[0041] Polyester fiber, silk fiber, spider silk fiber, polylactic acid fiber, nano bamboo charcoal fiber, modified polyethylene glycol, and nano zinc oxide dispersion are mixed with softener and 100-120 parts of water at 40-45℃, stirred evenly, and then dried and shaped.

[0042] The above-mentioned molding materials are processed through opening, cotton opening, drawing, roving, and spinning to produce functional yarns, which are then woven into fabric.

[0043] The fabric is piled in 0.8-1.2 g / L of desizing enzyme for 40-50 minutes at a temperature of 42-44℃, then rinsed with clean water for 0.3-0.5 hours, dried in a dryer at a temperature of 100-120℃, and then pleated to obtain a folded layer.

[0044] Folded layers can be combined with base layers through methods such as sewing or gluing to obtain folded fabric.

[0045] Specifically, the preparation method of the modified polyethylene glycol is as follows: 15-25 parts by weight of polyethylene glycol are added dropwise to 45-70 parts by weight of sulfone bromide. During the dropwise addition, the system temperature is maintained at 2-4℃, and then the temperature is raised to 40-60℃. Then, it is added dropwise to 100-120 parts by weight of anhydrous diethyl ether. The mixture is filtered, washed, and dried. The product is dissolved in 60-80 parts by weight of N,N-dimethylformamide. 2-5 parts by weight of 3-amino-1,2-propanediol and 3-6 parts by weight of diethylamine are added. The mixture is heated to 80-90℃ and stirred for 2-4 hours. It is extracted with dichloromethane, precipitated with anhydrous diethyl ether, and dried under vacuum to obtain the modified polyethylene glycol.

[0046] In this embodiment, the preparation method of the nano zinc oxide dispersion is as follows: 30-50% anionic dispersant, 5-10% titanate coupling agent, and 0.5%-1.5% defoamer of nano zinc oxide are dissolved in deionized water, nano zinc oxide is added and mixed evenly, and then ground and dispersed using a sand mill to obtain a nano zinc oxide dispersion with an average particle size of <200nm.

[0047] Preferably, the anionic dispersant is one or more of anionic polyacrylamide, sodium polyacrylate, and ammonium polycarboxylate.

[0048] Furthermore, the defoamer is at least one of polydimethylsiloxane defoamer and polyether defoamer.

[0049] In specific implementations, the softener is polysiloxane or dimethyl silicone oil.

[0050] Example 3

[0051] This invention provides a tensile-resistant folding fabric, comprising a base layer and a folding layer, wherein the folding layer has several irregularly arranged pleats, and the folding layer comprises the following raw materials in parts by weight: 60 parts polyester fiber, 9 parts silk fiber, 10 parts spider silk fiber, 20 parts polylactic acid fiber, 15 parts nano bamboo charcoal fiber, 8 parts modified polyethylene glycol, 8 parts nano zinc oxide dispersion, and 2 parts softener.

[0052] The method for preparing the tensile folding fabric described in this embodiment is as follows: Figure 1 As shown, it includes the following steps:

[0053] Weigh out each raw material for the folded layer according to the specified ratio;

[0054] Polyester fiber, silk fiber, spider silk fiber, polylactic acid fiber, nano bamboo charcoal fiber, modified polyethylene glycol, and nano zinc oxide dispersion are mixed with softener and 100-120 parts of water at 40-45℃, stirred evenly, and then dried and shaped.

[0055] The above-mentioned molding materials are processed through opening, cotton opening, drawing, roving, and spinning to produce functional yarns, which are then woven into fabric.

[0056] The fabric is piled in 0.8-1.2 g / L of desizing enzyme for 40-50 minutes at a temperature of 42-44℃, then rinsed with clean water for 0.3-0.5 hours, dried in a dryer at a temperature of 100-120℃, and then pleated to obtain a folded layer.

[0057] Folded layers can be combined with base layers through methods such as sewing or gluing to obtain folded fabric.

[0058] Specifically, the preparation method of the modified polyethylene glycol is as follows: 15-25 parts by weight of polyethylene glycol are added dropwise to 45-70 parts by weight of sulfone bromide. During the dropwise addition, the system temperature is maintained at 2-4℃, and then the temperature is raised to 40-60℃. Then, it is added dropwise to 100-120 parts by weight of anhydrous diethyl ether. The mixture is filtered, washed, and dried. The product is dissolved in 60-80 parts by weight of N,N-dimethylformamide. 2-5 parts by weight of 3-amino-1,2-propanediol and 3-6 parts by weight of diethylamine are added. The mixture is heated to 80-90℃ and stirred for 2-4 hours. It is extracted with dichloromethane, precipitated with anhydrous diethyl ether, and dried under vacuum to obtain the modified polyethylene glycol.

[0059] In this embodiment, the preparation method of the nano zinc oxide dispersion is as follows: 30-50% anionic dispersant, 5-10% titanate coupling agent, and 0.5%-1.5% defoamer of nano zinc oxide are dissolved in deionized water, nano zinc oxide is added and mixed evenly, and then ground and dispersed using a sand mill to obtain a nano zinc oxide dispersion with an average particle size of <200nm.

[0060] Preferably, the anionic dispersant is one or more of anionic polyacrylamide, sodium polyacrylate, and ammonium polycarboxylate.

[0061] Furthermore, the defoamer is at least one of polydimethylsiloxane defoamer and polyether defoamer.

[0062] In specific implementations, the softener is polysiloxane or dimethyl silicone oil.

[0063] Example 4

[0064] This invention provides a tensile-resistant folding fabric, comprising a base layer and a folding layer, wherein the folding layer has several irregularly arranged pleats, and the folding layer comprises the following raw materials in parts by weight: 55-65 parts polyester fiber, 8-10 parts silk fiber, 7-12 parts spider silk fiber, 18-23 parts polylactic acid fiber, 12-18 parts nano bamboo charcoal fiber, 7-9 parts modified polyethylene glycol, 7-10 parts nano zinc oxide dispersion, and 1.5-2.5 parts softener.

[0065] The method for preparing the tensile folding fabric described in this embodiment is as follows: Figure 1 As shown, it includes the following steps:

[0066] Weigh out each raw material for the folded layer according to the specified ratio;

[0067] Polyester fiber, silk fiber, spider silk fiber, polylactic acid fiber, nano bamboo charcoal fiber, modified polyethylene glycol, and nano zinc oxide dispersion are mixed with softener and 100-120 parts of water at 40-45℃, stirred evenly, and then dried and shaped.

[0068] The above-mentioned molding materials are processed through opening, cotton opening, drawing, roving, and spinning to produce functional yarns, which are then woven into fabric.

[0069] The fabric is piled in 0.8-1.2 g / L of desizing enzyme for 40-50 minutes at a temperature of 42-44℃, then rinsed with clean water for 0.3-0.5 hours, dried in a dryer at a temperature of 100-120℃, and then pleated to obtain a folded layer.

[0070] Folded layers can be combined with base layers through methods such as sewing or gluing to obtain folded fabric.

[0071] Specifically, the preparation method of the modified polyethylene glycol is as follows: 15-25 parts by weight of polyethylene glycol are added dropwise to 45-70 parts by weight of sulfone bromide. During the dropwise addition, the system temperature is maintained at 2-4℃, and then the temperature is raised to 40-60℃. Then, it is added dropwise to 100-120 parts by weight of anhydrous diethyl ether. The mixture is filtered, washed, and dried. The product is dissolved in 60-80 parts by weight of N,N-dimethylformamide. 2-5 parts by weight of 3-amino-1,2-propanediol and 3-6 parts by weight of diethylamine are added. The mixture is heated to 80-90℃ and stirred for 2-4 hours. It is extracted with dichloromethane, precipitated with anhydrous diethyl ether, and dried under vacuum to obtain the modified polyethylene glycol.

[0072] In this embodiment, the preparation method of the nano zinc oxide dispersion is as follows: 30-50% anionic dispersant, 5-10% titanate coupling agent, and 0.5%-1.5% defoamer of nano zinc oxide are dissolved in deionized water, nano zinc oxide is added and mixed evenly, and then ground and dispersed using a sand mill to obtain a nano zinc oxide dispersion with an average particle size of <200nm.

[0073] Preferably, the anionic dispersant is one or more of anionic polyacrylamide, sodium polyacrylate, and ammonium polycarboxylate.

[0074] Furthermore, the defoamer is at least one of polydimethylsiloxane defoamer and polyether defoamer.

[0075] In specific implementations, the softener is polysiloxane or dimethyl silicone oil.

[0076] Example 5

[0077] This invention provides a tensile-resistant folding fabric, comprising a base layer and a folding layer. The folding layer has several irregularly arranged pleats. The folding layer comprises the following raw materials in parts by weight: 50-70 parts polyester fiber, 6-12 parts silk fiber, 5-15 parts spider silk fiber, 15-25 parts polylactic acid fiber, 10-20 parts nano bamboo charcoal fiber, 6-10 parts modified polyethylene glycol, 5-11 parts nano zinc oxide dispersion, and 1-3 parts softener.

[0078] The method for preparing the tensile folding fabric described in this embodiment is as follows: Figure 1 As shown, it includes the following steps:

[0079] Weigh out each raw material for the folded layer according to the specified ratio;

[0080] Polyester fiber, silk fiber, spider silk fiber, polylactic acid fiber, nano bamboo charcoal fiber, modified polyethylene glycol, and nano zinc oxide dispersion are mixed with softener and 100-120 parts of water at 40-45℃, stirred evenly, and then dried and shaped.

[0081] The above-mentioned molding materials are processed through opening, cotton opening, drawing, roving, and spinning to produce functional yarns, which are then woven into fabric.

[0082] The fabric is piled in 0.8-1.2 g / L of desizing enzyme for 40-50 minutes at a temperature of 42-44℃, then rinsed with clean water for 0.3-0.5 hours, dried in a dryer at a temperature of 100-120℃, and then pleated to obtain a folded layer.

[0083] Folded layers can be combined with base layers through methods such as sewing or gluing to obtain folded fabric.

[0084] Specifically, the preparation method of the modified polyethylene glycol is as follows: 15-25 parts by weight of polyethylene glycol are added dropwise to 45-70 parts by weight of sulfone bromide. During the dropwise addition, the system temperature is maintained at 2-4℃, and then the temperature is raised to 40-60℃. Then, it is added dropwise to 100-120 parts by weight of anhydrous diethyl ether. The mixture is filtered, washed, and dried. The product is dissolved in 60-80 parts by weight of N,N-dimethylformamide. 2-5 parts by weight of 3-amino-1,2-propanediol and 3-6 parts by weight of diethylamine are added. The mixture is heated to 80-90℃ and stirred for 2-4 hours. It is extracted with dichloromethane, precipitated with anhydrous diethyl ether, and dried under vacuum to obtain the modified polyethylene glycol.

[0085] In this embodiment, the preparation method of the nano zinc oxide dispersion is as follows: 30-50% anionic dispersant, 5-10% titanate coupling agent, and 0.5%-1.5% defoamer of nano zinc oxide are dissolved in deionized water, nano zinc oxide is added and mixed evenly, and then ground and dispersed using a sand mill to obtain a nano zinc oxide dispersion with an average particle size of <200nm.

[0086] Preferably, the anionic dispersant is one or more of anionic polyacrylamide, sodium polyacrylate, and ammonium polycarboxylate.

[0087] Furthermore, the defoamer is at least one of polydimethylsiloxane defoamer and polyether defoamer.

[0088] In specific implementations, the softener is polysiloxane or dimethyl silicone oil.

[0089] Comparative Example 1 (the difference from Example 3 is that the modified polyethylene glycol was replaced with polyethylene glycol)

[0090] This comparative example provides a tensile folding fabric, including a base layer and a folding layer, wherein the folding layer has several irregularly arranged pleats, and the folding layer comprises the following raw materials in parts by weight: 60 parts polyester fiber, 9 parts silk fiber, 10 parts spider silk fiber, 20 parts polylactic acid fiber, 15 parts nano bamboo charcoal fiber, 8 parts polyethylene glycol, 8 parts nano zinc oxide dispersion, and 2 parts softener.

[0091] The method for preparing the tensile folding fabric described in this comparative example includes the following steps:

[0092] Weigh out each raw material for the folded layer according to the specified ratio;

[0093] Polyester fiber, silk fiber, spider silk fiber, polylactic acid fiber, nano bamboo charcoal fiber, polyethylene glycol, and nano zinc oxide dispersion are mixed with softener and 100-120 parts of water at 40-45℃, stirred evenly, and then dried and shaped.

[0094] The above-mentioned molding materials are processed through opening, cotton opening, drawing, roving, and spinning to produce functional yarns, which are then woven into fabric.

[0095] The fabric is piled in 0.8-1.2 g / L of desizing enzyme for 40-50 minutes at a temperature of 42-44℃, then rinsed with clean water for 0.3-0.5 hours, dried in a dryer at a temperature of 100-120℃, and then pleated to obtain a folded layer.

[0096] Folded layers can be combined with base layers through methods such as sewing or gluing to obtain folded fabric.

[0097] In this comparative example, the preparation method of the nano zinc oxide dispersion is as follows: 30-50% by mass of an anionic dispersant, 5-10% by mass of titanate coupling agent and 0.5%-1.5% by mass of defoamer are dissolved in deionized water, nano zinc oxide is added and mixed evenly, and then ground and dispersed using a sand mill to obtain a nano zinc oxide dispersion with an average particle size of <200nm.

[0098] Preferably, the anionic dispersant is one or more of anionic polyacrylamide, sodium polyacrylate, and ammonium polycarboxylate.

[0099] Furthermore, the defoamer is at least one of polydimethylsiloxane defoamer and polyether defoamer.

[0100] The softener is polysiloxane or dimethyl silicone oil.

[0101] Comparative Example 2 (The difference from Example 3 is that the nano zinc oxide dispersion is replaced with nano zinc oxide)

[0102] This comparative example provides a tensile folding fabric, including a base layer and a folding layer, wherein the folding layer has several irregularly arranged pleats, and the folding layer comprises the following raw materials in parts by weight: 60 parts polyester fiber, 9 parts silk fiber, 10 parts spider silk fiber, 20 parts polylactic acid fiber, 15 parts nano bamboo charcoal fiber, 8 parts modified polyethylene glycol, 8 parts nano zinc oxide, and 2 parts softener.

[0103] The method for preparing the tensile folding fabric described in this comparative example includes the following steps:

[0104] Weigh out each raw material for the folded layer according to the specified ratio;

[0105] Polyester fiber, silk fiber, spider silk fiber, polylactic acid fiber, nano bamboo charcoal fiber, modified polyethylene glycol, and nano zinc oxide are mixed with softener and 100-120 parts of water at 40-45℃, stirred evenly, and then dried and shaped.

[0106] The above-mentioned molding materials are processed through opening, cotton opening, drawing, roving, and spinning to produce functional yarns, which are then woven into fabric.

[0107] The fabric is piled in 0.8-1.2 g / L of desizing enzyme for 40-50 minutes at a temperature of 42-44℃, then rinsed with clean water for 0.3-0.5 hours, dried in a dryer at a temperature of 100-120℃, and then pleated to obtain a folded layer.

[0108] Folded layers can be combined with base layers through methods such as sewing or gluing to obtain folded fabric.

[0109] Specifically, the preparation method of the modified polyethylene glycol is as follows: 15-25 parts by weight of polyethylene glycol are added dropwise to 45-70 parts by weight of sulfone bromide. During the dropwise addition, the system temperature is maintained at 2-4℃, and then the temperature is raised to 40-60℃. Then, it is added dropwise to 100-120 parts by weight of anhydrous diethyl ether. The mixture is filtered, washed, and dried. The product is dissolved in 60-80 parts by weight of N,N-dimethylformamide. 2-5 parts by weight of 3-amino-1,2-propanediol and 3-6 parts by weight of diethylamine are added. The mixture is heated to 80-90℃ and stirred for 2-4 hours. It is extracted with dichloromethane, precipitated with anhydrous diethyl ether, and dried under vacuum to obtain the modified polyethylene glycol.

[0110] In specific implementations, the softener is polysiloxane or dimethyl silicone oil.

[0111] Comparative Example 3 (the difference from Example 3 is that the modified polyethylene glycol is replaced with polyethylene glycol and the nano zinc oxide dispersion is replaced with nano zinc oxide)

[0112] This comparative example provides a tensile folding fabric, including a base layer and a folding layer, wherein the folding layer has several irregularly arranged pleats, and the folding layer comprises the following raw materials in parts by weight: 60 parts polyester fiber, 9 parts silk fiber, 10 parts spider silk fiber, 20 parts polylactic acid fiber, 15 parts nano bamboo charcoal fiber, 8 parts polyethylene glycol, 8 parts nano zinc oxide, and 2 parts softener.

[0113] The method for preparing the tensile folded fabric described in this comparative example is as follows: Figure 1 As shown, it includes the following steps:

[0114] Weigh out each raw material for the folded layer according to the specified ratio;

[0115] Polyester fiber, silk fiber, spider silk fiber, polylactic acid fiber, nano bamboo charcoal fiber, polyethylene glycol, and nano zinc oxide are mixed with softener and 100-120 parts of water at 40-45℃, stirred evenly, and then dried and shaped.

[0116] The above-mentioned molding materials are processed through opening, cotton opening, drawing, roving, and spinning to produce functional yarns, which are then woven into fabric.

[0117] The fabric is piled in 0.8-1.2 g / L of desizing enzyme for 40-50 minutes at a temperature of 42-44℃, then rinsed with clean water for 0.3-0.5 hours, dried in a dryer at a temperature of 100-120℃, and then pleated to obtain a folded layer.

[0118] Folded layers can be combined with base layers through methods such as sewing or gluing to obtain folded fabric.

[0119] The softener is polysiloxane or dimethyl silicone oil.

[0120] experiment

[0121] Tensile strength tests were conducted on the folded fabrics of Examples 1-5 and Comparative Examples 1-3. The test method was based on GB / T3923.2-2013 "Textiles - Tensile Properties of Fabrics - Part 2: Determination of Breaking Strength - Sampling Method". The results are shown in Table 1 below:

[0122] Example 1 68.2 Example 2 68.4 Example 3 68.6 Example 4 68.5 Example 5 68.3 Comparative Example 1 50.8 Comparative Example 2 50.5 Comparative Example 3 39.2

[0123] The results above show that the folded fabric prepared by this invention has good tensile properties. By adding modified polyethylene glycol and nano zinc oxide dispersion to the folded layer, the two have a synergistic effect, which can greatly improve the tensile properties of the folded fabric.

[0124] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0125] It should be understood that the disclosed apparatus can be implemented in other ways, as illustrated in the embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0126] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0127] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A tensile-resistant folding fabric, characterized in that, It includes a base layer and a folded layer, wherein the folded layer has several irregularly arranged pleats, and the folded layer comprises the following raw materials in parts by weight: 50-70 parts polyester fiber, 6-12 parts silk fiber, 5-15 parts spider silk fiber, 15-25 parts polylactic acid fiber, 10-20 parts nano bamboo charcoal fiber, 6-10 parts modified polyethylene glycol, 5-11 parts nano zinc oxide dispersion, and 1-3 parts softener; The modified polyethylene glycol is prepared as follows: 15-25 parts by weight of polyethylene glycol are added dropwise to 45-70 parts by weight of sulfonium bromide. During the dropwise addition, the system temperature is maintained at 2-4℃. The temperature is then raised to 40-60℃, and then added dropwise to 100-120 parts by weight of anhydrous diethyl ether. The mixture is filtered, washed, and dried. The product is dissolved in 60-80 parts by weight of N,N-dimethylformamide. 2-5 parts by weight of 3-amino-1,2-propanediol and 3-6 parts by weight of diethylamine are added. The mixture is heated to 80-90℃ and stirred for 2-4 hours. It is then extracted with dichloromethane, precipitated with anhydrous diethyl ether, and dried under vacuum to obtain the modified polyethylene glycol. The preparation method of the nano zinc oxide dispersion is as follows: Dissolve 30-50% anionic dispersant, 5-10% titanate coupling agent and 0.5%-1.5% defoamer in deionized water, add nano zinc oxide and mix evenly, and grind and disperse using a sand mill to obtain a nano zinc oxide dispersion with an average particle size of <200nm.

2. The tensile-resistant folding fabric as described in claim 1, characterized in that, The folded layer comprises the following raw materials in parts by weight: 55-65 parts polyester fiber, 8-10 parts silk fiber, 7-12 parts spider silk fiber, 18-23 parts polylactic acid fiber, 12-18 parts nano bamboo charcoal fiber, 7-9 parts modified polyethylene glycol, 7-10 parts nano zinc oxide dispersion, and 1.5-2.5 parts softener.

3. The tensile-resistant folding fabric as described in claim 2, characterized in that, The folded layer comprises the following raw materials in parts by weight: 60 parts polyester fiber, 9 parts silk fiber, 10 parts spider silk fiber, 20 parts polylactic acid fiber, 15 parts nano bamboo charcoal fiber, 8 parts modified polyethylene glycol, 8 parts nano zinc oxide dispersion, and 2 parts softener.

4. The tensile-resistant folding fabric as described in claim 1, characterized in that, The anionic dispersant is one or more of anionic polyacrylamide, sodium polyacrylate, and ammonium polycarboxylate.

5. The tensile-resistant folding fabric as described in claim 1, characterized in that, The defoamer is at least one of polydimethylsiloxane defoamer and polyether defoamer.

6. The tensile-resistant folding fabric as described in claim 1, characterized in that, The softener is polysiloxane or dimethyl silicone oil.

7. The method for preparing the tensile folding fabric according to any one of claims 1-6, characterized in that, Includes the following steps: Weigh out each raw material for the folded layer according to the specified ratio; Polyester fiber, silk fiber, spider silk fiber, polylactic acid fiber, nano bamboo charcoal fiber, modified polyethylene glycol, and nano zinc oxide dispersion are mixed with softener and 100-120 parts of water at 40-45℃, stirred evenly, and then dried and shaped. The above-mentioned molding materials are processed through opening, cotton opening, drawing, roving, and spinning to produce functional yarns, which are then woven into fabric. The fabric is piled in 0.8-1.2 g / L of desizing enzyme for 40-50 minutes at a temperature of 42-44℃, then rinsed with clean water for 0.3-0.5 hours, dried in a dryer at a temperature of 100-120℃, and then pleated to obtain a folded layer. By combining the folded layer with the base layer, a folded fabric is obtained.

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