Production process of antibacterial and breathable 3D warp-knitted fabric

Abstract

The application discloses an antibacterial and breathable 3D warp-knitted fabric production process, which comprises preparation of modified polyester filaments, preparation of the warp-knitted fabric and post-treatment of the warp-knitted fabric; the preparation method of the modified polyester filaments is as follows: preparation of modified master batches and preparation of the modified polyester filaments, wherein the modified master batches comprise tea carbon, silver-loaded zirconium phosphate, graphene oxide, ethylene-acrylic acid ester copolymer, titanium isopropoxide and pentaerythritol bisphosphoric acid bisdimethylamino ethanol ester; the preparation of the warp-knitted fabric is that the modified polyester filaments are prepared into the antibacterial and breathable warp-knitted fabric with thick-weaving areas, thin-weaving areas and mesh-weaving areas by adopting loop-forming type jacquard three-needle patterning. The tea carbon added in the modified polyester makes the prepared modified polyester filaments have the functions of releasing negative ions and adsorbing peculiar smell. The silver-loaded zirconium phosphate added in the modified polyester improves the antibacterial effect of the modified polyester filaments. The warp-knitted fabric prepared by adopting the loop-forming type jacquard three-needle patterning has the mesh-weaving areas and has the air-permeable effect.

Description

TECHNICAL FIELD

[0001] The application relates to a production process of an antibacterial and breathable 3D warp-knitted fabric, and belongs to the technical field of warp-knitted fabric production. BACKGROUND

[0002] The breathable warp-knitted fabric is generally formed by changing the weave structure to form meshes on the warp-knitted fabric, so that the breathable fabric has good air permeability. The pure polyester fiber product has poor moisture absorption performance, and is easy to accumulate charges to form static electricity in dry climates, and static electricity is generated when being worn and used, and the comfort is difficult to compare with natural cotton fibers. And when the breathable fabric forms functions such as antibacterial and negative ions, a coating or dipping method is generally used to attach the corresponding auxiliary agent to the surface of the polyester fiber, so that the durability is insufficient.

[0003] Tea carbon is known as "black diamond", and is rich in a large amount of trace elements beneficial to the body. Tea carbon is a porous material with micropores, mesopores and small pores, which is made of recycled tea leaves and tea residues through special process, and has a large specific surface area and super strong adsorption. Tea carbon has special functions of deodorization and adsorption of peculiar smell. Tea carbon has the special functions of dehumidification and environmental temperature regulation, and the adsorbed moisture is weakly alkaline, and has the functions of bleaching and beautifying skin. Due to its special molecular structure and super strong adsorption, tea carbon has weak conductivity, and plays a role in preventing static electricity and resisting electromagnetic radiation. Tea carbon can also radiate far infrared rays, generate negative ions, speed up blood circulation and improve the human environment.

[0004] How to prepare a 3D breathable warp-knitted fabric with long-lasting antibacterial and negative ion functions has become a problem to be solved. SUMMARY

[0005] The application aims to provide an antibacterial and breathable 3D warp-knitted fabric production process, so that the prepared warp-knitted fabric has the functions of antibacterial and breathable and releasing negative ions.

[0006] To solve the above technical problems, the purpose of the application is achieved as follows:

[0007] The application relates to an antibacterial and breathable 3D warp-knitted fabric production process, which comprises preparation of modified polyester filaments, preparation of a warp-knitted fabric and post-treatment of the warp-knitted fabric.

[0008] The preparation method of the modified polyester filaments is as follows:

[0009] (1) Preparation of modified master batch

[0010] The tea carbon, silver-loaded zirconium phosphate, graphene oxide, ethylene acrylate copolymer, titanium isopropoxide and pentaerythritol bisphosphoric acid bisdimethylamino ethanol are uniformly mixed according to a set proportion to prepare a mixed material, and are stirred at 100-120 DEG C for 1.5-2 hours, and then are melt blended with polyester chips to prepare a modified master batch by using a double-screw extruder;

[0011] (2) Preparation of modified polyester filament

[0012] The modified master batch and the polyester chips after drying are uniformly mixed according to a set proportion, and are melt blended by using a spinning method, are extruded by using a spinning pack, and are cooled by using a ring blowing, are oiled by using a bundle, are drawn, are heat set and are wound to prepare the modified polyester filament.

[0013] The preparation of the warp-knitted fabric is that the modified polyester filament is used to prepare the antibacterial and breathable warp-knitted fabric with a thick weaving area, a thin weaving area and a mesh weaving area by using a loop-type jacquard three-needle pattern.

[0014] The thin weaving area is formed by using a warp-filling-in stitch, the mesh weaving area is formed by using a chain stitch and the thick weaving area is formed by using a warp-pile stitch.

[0015] On the basis of the above scheme and as a preferred scheme of the above scheme, the mixed material includes 10-20 parts by mass of tea carbon, 10-15 parts by mass of silver-loaded zirconium phosphate, 10-20 parts by mass of graphene oxide, 5-10 parts by mass of ethylene acrylate copolymer, 3-5 parts by mass of titanium isopropoxide and 10-15 parts by mass of pentaerythritol bisphosphoric acid bisdimethylamino ethanol.

[0016] On the basis of the above scheme and as a preferred scheme of the above scheme, the mixed material and the polyester chips are mixed according to a mass ratio of 1:1-2.

[0017] On the basis of the above scheme and as a preferred scheme of the above scheme, the post-treatment of the warp-knitted fabric includes water washing, setting and dyeing.

[0018] On the basis of the above scheme and as a preferred scheme of the above scheme, the setting temperature is 175-185 DEG C, and the setting is performed by using a tenter to a set width.

[0019] The application has the following beneficial effects: the production process of the antibacterial and breathable 3D warp-knitted fabric adds tea carbon to the prepared modified polyester, so that the prepared modified polyester filament has the functions of releasing negative ions and adsorbing odors, and the silver-loaded zirconium phosphate improves the antibacterial effect of the modified polyester filament, and the warp-knitted fabric prepared by using a loop-type jacquard three-needle pattern has a mesh weaving area, so that the warp-knitted fabric has good air permeability. DETAILED DESCRIPTION

[0020] The application will be further described below in connection with specific examples.

[0021] Example 1

[0022] The production process of the antibacterial and breathable 3D warp-knitted fabric relates to the preparation of modified polyester filaments, the preparation of the warp-knitted fabric, and the post-treatment of the warp-knitted fabric.

[0023] The preparation method of the modified polyester filaments is as follows:

[0024] (1) Preparation of modified masterbatch

[0025] The tea carbon, silver-loaded zirconium phosphate, graphene oxide, ethylene acrylate copolymer, titanium isopropoxide, and pentaerythritol bisphosphoric acid bisdimethylamino ethanol ester are uniformly mixed according to the set proportion to obtain a mixture, and the mixture is stirred at 100-120℃ for 1.5-2 hours, and then the polyester chips are melt-blended to obtain the modified masterbatch by using a double-screw extruder.

[0026] Further, in this step, the mixture includes 10-20 parts by mass of tea carbon, 10-15 parts by mass of silver-loaded zirconium phosphate, 10-20 parts by mass of graphene oxide, 5-10 parts by mass of ethylene acrylate copolymer, 3-5 parts by mass of titanium isopropoxide, and 10-15 parts by mass of pentaerythritol bisphosphoric acid bisdimethylamino ethanol ester.

[0027] Further, the mixture and the polyester chips are mixed according to a mass ratio of 1:1-2.

[0028] (2) Preparation of modified polyester filaments

[0029] The modified masterbatch and the polyester chips after drying are uniformly mixed according to the set proportion, and the modified polyester filaments are prepared by the method of melt-blending spinning, jetting extrusion through a jetting assembly, primary fiber cooling by ring blowing, oiling, drafting, heat setting, and winding. In this step, the weight percentage of the modified masterbatch is 5-10%.

[0030] The preparation of the warp-knitted fabric is to prepare the antibacterial and breathable warp-knitted fabric with thick weaving area, thin weaving area, and mesh weaving area by using the loop-type jacquard three-needle of the modified polyester filaments. The thin weaving area is formed by using the warp flat marker tissue, the mesh weaving area is formed by using the chain marker tissue, and the thick weaving area is formed by using the warp pile marker tissue.

[0031] The post-treatment of the warp-knitted fabric includes washing, setting, and dyeing. The setting temperature is 175-185℃, and the warp-knitted fabric is set to the set width by tentering. The dyeing is performed by using disperse dyes.

[0032] Example 2

[0033] The application relates to a production process of an antibacterial and breathable 3D warp-knitted fabric, which comprises preparation of modified polyester filaments, preparation of the warp-knitted fabric and post-treatment of the warp-knitted fabric.

[0034] The preparation method of the modified polyester filaments is as follows:

[0035] (1) Preparation of modified master batch

[0036] Tea carbon, silver-loaded zirconium phosphate, graphene oxide, ethylene-acrylic acid ester copolymer, titanium isopropoxide and pentaerythritol bisphosphoric acid bisdimethylamino ethanol ester are uniformly mixed according to a set proportion to obtain a mixture, and the mixture is stirred at 100-120 DEG C for 1.5-2 hours, and then the polyester chip is melt-blended to obtain the modified master batch by using a double-screw extruder.

[0037] Further, in the step, 10-20 parts by mass of tea carbon, 10-15 parts by mass of silver-loaded zirconium phosphate, 10-20 parts by mass of graphene oxide, 5-10 parts by mass of ethylene-acrylic acid ester copolymer, 3-5 parts by mass of titanium isopropoxide and 10-15 parts by mass of pentaerythritol bisphosphoric acid bisdimethylamino ethanol ester are included in the mixture.

[0038] Further, the mixture and the polyester chip are mixed according to a mass ratio of 1:1-2.

[0039] (2) Preparation of modified polyester filaments

[0040] The modified master batch and the polyester chip after drying are uniformly mixed according to a set proportion, and the modified polyester filaments are prepared by the method of melt-blending spinning, jetting extrusion through a jetting assembly, primary fiber cooling by ring blowing, oiling, drafting, heat setting and winding.

[0041] The preparation of the warp-knitted fabric is that the modified polyester filaments are used to prepare the antibacterial and breathable warp-knitted fabric with thick-weaving areas, thin-weaving areas and mesh-weaving areas by using a loop-forming jacquard three-needle pattern. The thin-weaving areas are formed by using a warp-filling yarn organization, the mesh-weaving areas are formed by using a chain stitch filling yarn organization, and the thick-weaving areas are formed by using a warp-pile filling yarn organization.

[0042] The post-treatment of the warp-knitted fabric comprises washing and setting. The setting temperature is 175-185 DEG C, and the warp-knitted fabric is stretched to a set width. Dyeing is performed by using a disperse dye.

[0043] The comparative example relates to a breathable 3D warp-knitted fabric which is woven by using conventional polyester filaments according to the same organization structure.

[0044] The color fastness, washing size change and bacteriostatic rate of the breathable 3D warp-knitted fabric prepared in Example 1, Example 2 and the comparative example were detected, and the results are shown in the following table.

[0045]

[0046] It can be seen that the breathable 3D warp-knitted fabric prepared in Example 1 and Example 2 has bacteriostatic effect. And the color fastness is better than that of the comparative example.

[0047] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor based on the concept of the present application. Therefore, any technical solutions obtained by logical analysis, reasoning or limited experiments based on the prior art according to the concept of the present application shall be within the protection scope defined by the claims.

Claims

1. A process for producing an antibacterial, breathable 3D warp-knitted fabric, characterized in that, This includes the preparation of modified polyester filaments, the preparation of warp-knitted fabrics, and the post-treatment of warp-knitted fabrics. The modified polyester filament is prepared as follows: (1) Preparation of modified masterbatch A mixture of tea carbon, silver-loaded zirconium phosphate, graphene oxide, ethylene acrylate copolymer, titanium isopropoxy, and pentaerythritol diphosphate dimethylaminoethanol ester was prepared by uniformly mixing them in a set ratio. The mixture was stirred at 100-120℃ for 1.5-2 hours and then melt-blended with polyester chips and modified masterbatch was obtained by twin-screw extrusion. The mixture includes 10-20 parts by weight of tea carbon, 10-15 parts by weight of silver-loaded zirconium phosphate, 10-20 parts by weight of graphene oxide, 5-10 parts by weight of ethylene acrylate copolymer, 3-5 parts by weight of titanium isopropoxy and 10-15 parts by weight of pentaerythritol dibis(dimethylaminoethanol) bisphosphate. (2) Preparation of modified polyester filament Modified masterbatch is uniformly mixed with dried polyester chips in a predetermined ratio, and then extruded through a spinneret using a melt blending spinning method. The virgin fibers are cooled by a ring blower, bundled and oiled, drawn, heat-set, and wound to obtain modified polyester filaments; the modified masterbatch is used in an amount of 5-10% by weight. The warp-knitted fabric is prepared by using modified polyester filaments in a loop-type jacquard three-needle knitting process to prepare an antibacterial and breathable warp-knitted fabric with thick knitting zone, thin knitting zone and mesh knitting zone. Thin woven areas are formed using a flat padded yarn weave, mesh woven areas are formed using a chain padded yarn weave, and thick woven areas are formed using a pile padded yarn weave.

2. The production process of an antibacterial and breathable 3D warp-knitted fabric according to claim 1, characterized in that, The mixture is mixed with polyester chips at a mass ratio of 1:1-2.

3. The production process of an antibacterial and breathable 3D warp-knitted fabric according to claim 1, characterized in that, The post-treatment of the warp-knitted fabric includes washing, setting, and dyeing.

4. The production process of an antibacterial and breathable 3D warp-knitted fabric according to claim 3, characterized in that, The setting temperature is 175-185℃; the setting is performed by stretching to the set width.

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