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CN-115852568-B - Antibacterial fabric and production process thereof and special spinneret plate

CN115852568BCN 115852568 BCN115852568 BCN 115852568BCN-115852568-B

Abstract

The invention discloses an antibacterial fabric, a production process thereof and a special spinneret plate, relates to the fabric, and aims to solve the problem that antibacterial microcapsules easily fall off from the surface of the fabric, and the technical scheme is as follows: the fabric comprises a fabric main body, wherein the fabric main body is formed by weaving antibacterial yarns, the surface of the fabric main body is provided with sterilizing cationic groups, the antibacterial yarns comprise core yarns and winding yarns, the core yarns have elasticity, the winding yarns cover the elongated core yarns in a spiral mode to expose the core yarns in a tensioning state of the antibacterial yarns, gaps communicated with the surface of the core yarns are formed in the core yarns, and gallnut antibacterial microcapsules are arranged on the surface of the core yarns and in the gaps. According to the invention, the Chinese gall antibacterial microcapsules are stored in a gap, and the elongated core yarns are coated in a spiral mode through the winding yarns, so that the consumption of the Chinese gall antibacterial microcapsules can be slowed down, the antibacterial period of the Chinese gall antibacterial microcapsules is prolonged, and the fabric is antibacterial for a long time.

Inventors

  • CHEN JING
  • CHEN CHANGMEI

Assignees

  • 浙江贝睿纺织科技有限公司

Dates

Publication Date
20260512
Application Date
20221119

Claims (7)

  1. 1. The antibacterial fabric is characterized by comprising a fabric main body, wherein the fabric main body is formed by weaving antibacterial yarns (1), sterilizing cationic groups are arranged on the surface of the fabric main body, the antibacterial yarns (1) comprise core yarns (2) and winding yarns (3), the core yarns (2) are elastic, the winding yarns (3) cover the elongated core yarns (2) in a spiral mode to expose the core yarns (2) in a tensioning state of the antibacterial yarns (1), gaps (4) communicated with the surfaces of the core yarns are formed in the core yarns (2), chinese gall antibacterial microcapsules are arranged on the surfaces of the core yarns (2) and in the gaps (4), the core yarns (2) are formed by twisting a plurality of special-shaped fibers (5), the special-shaped fibers (5) comprise a plurality of radially arranged convex edges (6), the width of one side, far away from the center of each special-shaped fiber (5), of each convex edge (6) is larger than one side, close to the center of each special-shaped fiber (5), of each Chinese gall antibacterial microcapsule is located on the side of each convex edge (6).
  2. 2. The antibacterial fabric of claim 1, wherein the winding yarn (3) is formed by twisting polyester fibers, and nano copper particles are arranged in the polyester fibers.
  3. 3. A production process of an antibacterial fabric is used for producing the antibacterial fabric in claim 2 and is characterized by comprising the following steps of S1, implanting copper into polyester fibers after nanocrystallization, spinning to prepare polyester fibers with nanocrystallized copper particles, S2 twisting the polyester fibers to form winding yarns (3), spinning S3 special-shaped fibers (5) into a plurality of convex edges (6) which are radially arranged by adopting special-shaped spinning holes (8) in a spinning mode in a forming process, S4 preparing a finishing agent of Chinese gall antibacterial microcapsules, S5 attaching the Chinese gall antibacterial microcapsules on the special-shaped fibers (5) through an impregnation method, S6 twisting the special-shaped fibers (5) to form core yarns (2), S7 weaving the antibacterial yarns (1) to form a fabric main body, and S8 attaching antibacterial cationic groups on the fabric main body through an antibacterial finishing agent.
  4. 4. A production process of the antibacterial fabric is characterized by comprising the steps of A1 adding sodium alginate into deionized water, stirring to prepare a sodium alginate solution, A2 adding gallnut extract into the sodium alginate solution, continuously stirring uniformly, marking the mixture as a solution A, taking deionized water as the mass ratio of the sodium alginate to the gallnut extract is 2.5:1.0, adding glacial acetic acid solution into the deionized water, stirring uniformly, adding calcium chloride into the mixture, stirring until the mixture is uniformly dissolved, adding chitosan, continuously stirring uniformly, marking the mixture as a solution B, A4 dropwise adding the solution A into the solution B, continuously stirring, adding glutaraldehyde solution, marking the mixture as a solution C after microcapsule formation, A5 filtering the solution C, placing the prepared and formed microcapsule into an oven for drying to obtain a finished product of the antibacterial microcapsule of the gallnut, and A6 mixing the antibacterial microcapsule of the gallnut and an emulsifier according to a mass ratio of 20:1, adding a polyurethane and distilled water 1:1 and other mass mixed binders to prepare the antibacterial microcapsule finishing agent of the gallnut.
  5. 5. The production process of the antibacterial fabric according to claim 3, wherein the step S8 comprises preparation of an antibacterial finishing agent and finishing of the fabric, wherein the antibacterial finishing agent is a polysiloxane quaternary ammonium salt finishing agent, and the preparation method comprises the steps of weighing dimethyl carbonate, tetradecyl tertiary amine and isopropylenzyme, taking potassium hydroxide as a catalyst, reacting for 5 hours at 130 ℃ to obtain a reactant I, mixing the reactant I, hydrochloric acid and isopropanol, reacting for 2 hours at 80 ℃, dissolving B3 amino silicone oil in isopropanol, dropwise adding the reactant I into the solution in the step B2 within 3 hours, continuously stirring, preserving heat, reacting for 2 hours to obtain a reactant II, steaming the reactant II for 2 hours to obtain a final product, adding AEO-9 and TX-10, performing high shear dispersion emulsification according to a compound emulsifier prepared according to a ratio of 1:1 to obtain an antibacterial finishing agent emulsion, adding water into the B5, and adjusting the pH value of the antibacterial finishing agent to 6 to prepare the antibacterial finishing agent.
  6. 6. The production process of the antibacterial fabric according to claim 5, wherein the fabric finishing step comprises immersing a C1 fabric body in the antibacterial finishing agent for 1h, rolling the C2 fabric body by a mangle with a rolling surplus of 80%, drying the C3 fabric body at 80 ℃, and baking the C4 fabric body at 120 ℃.
  7. 7. A special spinneret plate for producing an antibacterial fabric is characterized by comprising a spinneret plate main body (7), wherein spinneret holes (8) are formed in the spinneret plate main body (7), the spinneret holes (8) comprise a main hole (9) in the center and auxiliary holes (10) distributed on the outer edge of the main hole (9) in an annular array, and the auxiliary holes (10) are arranged in an isosceles triangle shape and the vertex angles of the auxiliary holes are arranged towards the center of the main hole (9).

Description

Antibacterial fabric and production process thereof and special spinneret plate Technical Field The invention relates to a fabric, in particular to an antibacterial fabric, a production process thereof and a special spinneret plate. Background The fabric is the material used for making clothing. As one of the three elements of the garment, the fabric can not only explain the style and characteristics of the garment, but also directly control the color and modeling of the garment, including knitted fabric and woven fabric. Microcapsules, also known as microcapsules, are small particles that contain the active ingredient, or have a core material, surrounded by a coating, or shell. Sometimes each microcapsule may contain some core material (either the same component or different components). There is no accepted size scale of microcapsules, the diameter of which can be changed from 1 to 1000 μm, and a specific core material is subjected to microencapsulation treatment, and the color, morphology, volume, mass, solubility, storability and the like of the core material are changed to a certain extent, and under specific conditions, the core material is slowly released to play a role. With the continuous development of science and technology, microcapsule technology has attracted great attention, wherein the research on microcapsules and application thereof to textiles has been in the very beginning in recent years, but the development speed is rapid, and at the same time, the application thereof to the antibacterial aspect of medical textile materials has attracted extensive research and discussion of the scientific community. It can be said that the microcapsule technology is gradually brought into the industrialized development state The microcapsule core material adopts antibacterial substances, and the antibacterial microcapsules are attached to the surface of the fabric through finishing liquid, so that the fabric has stronger antibacterial capability. The preparation method of the leather fabric finishing agent disclosed in the Chinese patent with the publication number of CN109055633B is technically characterized in that antibacterial components in cactus are extracted from the leather, antibacterial and sterilization are carried out on leather, mugwort essential oil is extracted from mugwort, the mugwort essential oil has good antibacterial effect but is easy to volatilize, the mugwort essential oil is wrapped by microcapsules, the leather surface is sterilized and finished, antibacterial liquid and antibacterial microcapsules are permeated into the leather surface layer through surfactants and penetrants, so that the antibacterial liquid and the antibacterial microcapsules can be slowly released below the leather surface layer, the antibacterial effect is greatly prolonged, the antibacterial substances are extracted from natural plants, the antibacterial substances have good affinity to human skin, green tea leaves are added, and the smell is improved, so that the leather fabric has light green tea fragrance after finishing. The fabric containing the antibacterial microcapsules has the common problem that the antibacterial microcapsules are often adhered to the surface of the fabric in a finishing liquid dipping mode, so that the antibacterial microcapsules are difficult to enter the fabric, and when the fabric is shaped, post-finished and used, the external object friction of the fabric and the mutual friction of the fabric can cause the antibacterial microcapsules to fall off from the surface of the fabric, so that the antibacterial period of the antibacterial microcapsules is greatly reduced There is therefore a need to propose a new solution to this problem. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide an antibacterial fabric, a production process thereof and a special spinneret plate. The antibacterial fabric comprises a fabric main body, wherein the fabric main body is formed by weaving antibacterial yarns, the surface of the fabric main body is provided with sterilizing cationic groups, the antibacterial yarns comprise core yarns and winding yarns, the core yarns have elasticity, the winding yarns cover the elongated core yarns in a spiral mode to expose the core yarns in a tensioning state of the antibacterial yarns, gaps communicated with the surface of the core yarns are formed in the core yarns, and gallnut antibacterial microcapsules are arranged on the surfaces of the core yarns and in the gaps. By adopting the technical scheme, when the sterilizing cationic groups contact the negatively charged cell membranes of microorganisms, coulomb attraction effect occurs, bacteria can be effectively adsorbed, the bacteria die or lose the splitting proliferation capacity, the antibacterial capacity of the fabric is improved, the gallnut antibacterial microcapsules can slowly release the gallnut extract in the capsules for a long time, the mass f