A scientific cloth for inhibiting growth of microorganisms

Abstract

The utility model discloses a kind of science and technology cloth of inhibiting microbial growth, including base cloth layer and antibacterial waterborne polyurethane coating;Base cloth layer includes bottom comb and face comb, the yarn used in bottom comb is antibacterial microdenier polyester filament, the yarn used in face comb is antibacterial nylon filament;Base cloth layer has the fluff formed by raising hair on the side surface of face comb, fluff extends to the inside of antibacterial waterborne polyurethane coating;The side surface of base cloth layer away from antibacterial waterborne polyurethane coating is compounded with plane three-way fabric;Plane three-way fabric is interwoven by three groups of bacteriostatic core-spun yarn according to 60 ℃ angle, bacteriostatic core-spun yarn includes core yarn and bacteriostatic fiber layer covered on the outside of core yarn. Base cloth layer uses antibacterial filament, the coated is antibacterial waterborne polyurethane, the bacteriostatic fiber layer used in plane three-way fabric layer, so that the science and technology cloth has bacteriostatic effect. And plane three-way fabric can provide isotropic tensile effect.

Description

Technical Field

[0001] This utility model relates to a technical fabric that inhibits the growth of microorganisms, belonging to the technical field of technical fabrics. Background Technology

[0002] This type of technical fabric, which closely resembles genuine leather in appearance and texture, is also called technical microfiber fabric or nano-technological fabric. Its main material is polyester, typically warp-knitted, and it utilizes 3D biomimetic design. It is a new type of fabric produced through complex processes including dyeing, napping, penetration printing, hot stamping, lamination, sand washing, thickening and bonding, and drying. However, existing technical fabrics, when used as sofa upholstery, are prone to bacterial and microbial growth, especially in dark, indoor environments, which can negatively impact users over time. Therefore, developing a technical fabric that inhibits microbial growth is a key challenge. Utility Model Content

[0003] The purpose of this invention is to provide a technological fabric that inhibits the growth of microorganisms, thus having the effect of inhibiting microbial growth.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0005] The present invention relates to a fabric for inhibiting microbial growth, comprising a base fabric layer and an antibacterial waterborne polyurethane coating.

[0006] The base fabric layer includes a bottom comb and a top comb. The yarn used in the bottom comb is antibacterial ultrafine polyester filament, and the yarn used in the top comb is antibacterial nylon filament. The base fabric layer has nap formed by napping on one side of the surface that is the top comb, and the nap extends into the interior of the antibacterial waterborne polyurethane coating.

[0007] The base fabric layer has a planar triaxial fabric laminated on the side away from the antibacterial waterborne polyurethane coating; the planar triaxial fabric is made of three sets of antibacterial core-spun yarns interwoven at a 60° angle, and the antibacterial core-spun yarn includes a core yarn and an antibacterial fiber layer covering the outside of the core yarn.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the fineness of the antibacterial nylon filament is 75D / 144-288F, and the fineness of the antibacterial polyester filament is 54D / 24F.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the core yarn is hemp fiber yarn or Apocynum venetum fiber yarn; the fibers used in the antibacterial fiber layer are silver fiber, bamboo fiber, chitin fiber or alginate fiber.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the surface of the planar triaxial fabric away from the base fabric layer is coated with an antibacterial film.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the antibacterial film includes a waterproof film and nano antibacterial particles sputtered onto the surface of the waterproof film by vacuum deposition technology, wherein the nano antibacterial particles are nano silver or nano zinc oxide.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: a carbon silver film is hot-stamped on the side of the antibacterial waterborne polyurethane coating away from the base fabric layer.

[0013] The beneficial effects of this invention are as follows: The technical fabric that inhibits microbial growth involved in this invention uses antibacterial filaments in the base fabric layer, is coated with antibacterial waterborne polyurethane, and uses an antibacterial fiber layer in the planar three-dimensional fabric layer, giving the technical fabric an antibacterial effect. Furthermore, the planar three-dimensional fabric can provide isotropic tensile strength. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the microbial growth-inhibiting fabric involved in Example 1;

[0015] Figure 2 This is a schematic diagram of the structure of the microbial growth-inhibiting fabric involved in Example 2;

[0016] Figure 3 This is a schematic diagram of the structure of the fabric used to inhibit microbial growth, as described in Example 3.

[0017] The markings in the diagram are explained as follows: 1-Base fabric layer; 2-Antibacterial waterborne polyurethane coating; 3-Fleece; 4-Planar three-dimensional fabric; 5-Antibacterial film; 6-Carbon silver film. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1

[0020] Combination Figure 1 This embodiment provides a detailed description of a fabric for inhibiting microbial growth, comprising a base fabric layer 1 and an antibacterial waterborne polyurethane coating 2. Specifically, the antibacterial waterborne polyurethane coating 2 is a lysine-modified waterborne polyurethane.

[0021] The base fabric layer 1 includes a bottom comb and a top comb. The yarn used in the bottom comb is antibacterial ultrafine polyester filament, and the yarn used in the top comb is antibacterial nylon 6 filament. The padding yarn number of the top comb is 10 / 23 / / , and the padding yarn number of the bottom comb is 10 / 12 / / . The fineness of the antibacterial nylon filament is 75D / 144F, and the fineness of the antibacterial polyester filament is 54D / 24F.

[0022] The base fabric layer 1 has nap 3 formed by napping on one side of the surface that resembles a comb. The nap 3 extends into the interior of the antibacterial waterborne polyurethane coating 2, which can improve the bonding strength between the antibacterial waterborne polyurethane coating 2 and the base fabric layer 1.

[0023] The base fabric layer 1, on the side away from the antibacterial waterborne polyurethane coating 2, is laminated with a planar triaxial fabric 4; specifically, it is laminated using an EVA hot melt adhesive web. This is because the base fabric layer 1 of the technical fabric is warp-knitted, resulting in poor dimensional stability. The use of the planar triaxial fabric 4 can improve the dimensional stability of the technical fabric involved in this embodiment.

[0024] The planar triaxial fabric 4 is composed of three sets of antibacterial core-spun yarns interwoven at a 60° angle. The antibacterial core-spun yarn includes a core yarn and an antibacterial fiber layer covering the outside of the core yarn. Most woven fabrics are interwoven from yarns in two mutually perpendicular directions. When the fabric is subjected to a tensile force at a 45° angle to the warp or weft yarn, the tensile modulus of the woven fabric differs significantly from that when subjected to warp or weft tensile forces. However, triaxial fabrics, due to having three systems of yarns interwoven at a 60° angle, achieve isotropic properties. That is, regardless of the direction of stress, the deformation of the triaxial fabric is uniform in all directions. Therefore, triaxial fabrics do not have the weak points in shear and tensile strength found in two-dimensional fabrics. Furthermore, when subjected to impact, the deformation of the triaxial fabric exhibits uniform and equal strain. In this embodiment, a planar triaxial fabric with a basic structure is used.

[0025] The antibacterial fibers, antibacterial ultrafine polyester filaments, antibacterial nylon filaments, and antibacterial waterborne polyurethane coating used all have the effect of killing or inhibiting the growth of microorganisms. This gives the fabric its ability to resist microbial growth.

[0026] Furthermore, the core yarn is either hemp fiber yarn or Apocynum venetum fiber yarn; in this embodiment, hemp fiber yarn is selected. Hemp has a stable molecular structure, good molecular orientation, and good moisture absorption capacity. In addition, its slender cavity is rich in oxygen, making it impossible for anaerobic bacteria that can only survive under anaerobic conditions to survive. Moreover, hemp fiber contains cannabinoids, and scientific experiments have confirmed that cannabinoids have significant killing and inhibitory effects on Staphylococcus aureus, Escherichia coli, and Candida albicans. Therefore, hemp has natural antibacterial, insect-repellent, moth-repellent, and deodorizing effects.

[0027] The antibacterial fiber layer uses silver fiber, bamboo fiber, chitin fiber, or alginate fiber. In this embodiment, chitin fiber is selected. Chitin fiber has natural antibacterial and deodorizing functions, and its antibacterial rate against harmful bacteria such as Escherichia coli, Staphylococcus aureus, and Candida albicans can reach 99%. In chitin fiber, the amino groups in the chitosan molecules are converted into ammonium salts, which adsorb negatively charged bacteria, destroy their cell walls, and thus inhibit their development. Chitosan decomposes into low-molecular-weight substances, which, after adsorbing bacteria, penetrate the microbial cell wall and enter the cell to form a stable complex with DNA, interfering with the action of DNA polymerase or RNA polymerase, hindering the synthesis of DNA and RNA, and thus inhibiting bacterial reproduction.

[0028] The antibacterial effect of the fabric involved in this embodiment was tested, and the inhibition rate against Escherichia coli, Staphylococcus aureus, Candida albicans and other bacteria can reach more than 95%.

[0029] Example 2

[0030] Combination Figure 2 This embodiment will be described in detail below. The difference between this embodiment and Embodiment 1 is that the planar triaxial fabric 4, which inhibits microbial growth, has an antibacterial film 5 laminated on the surface away from the base fabric layer 1. The antibacterial film 5 includes a waterproof membrane and nano-antibacterial particles sputtered onto the surface of the waterproof membrane using vacuum deposition technology. The nano-antibacterial particles are nano-silver or nano-zinc oxide. In this embodiment, nano-zinc oxide is selected.

[0031] Example 3

[0032] Combination Figure 3 This embodiment will be described in detail below. The difference between this embodiment and Embodiment Two lies in that the antibacterial waterborne polyurethane coating 2 has a carbon silver film 6 hot-stamped on the side of the coating away from the base fabric layer 1. The carbon silver film 6 refers to PU resin with added carbon powder and silver powder, which is hot-stamped onto the surface of the antibacterial waterborne polyurethane coating 2 using an OPP transfer film according to a predetermined pattern. The pattern can be honeycomb-shaped.

[0033] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A technological fabric for inhibiting microbial growth, characterized in that, It includes a base fabric layer (1) and an antibacterial waterborne polyurethane coating (2); The base fabric layer (1) includes a bottom comb and a top comb. The yarn used in the bottom comb is antibacterial ultrafine polyester filament, and the yarn used in the top comb is antibacterial nylon filament. The base fabric layer (1) has nap (3) formed by napping on one side surface that is the top comb. The nap (3) extends into the interior of the antibacterial waterborne polyurethane coating (2). The base fabric layer (1) has a planar triaxial fabric (4) on the side away from the antibacterial waterborne polyurethane coating (2); the planar triaxial fabric (4) is made of three sets of antibacterial core-spun yarns interwoven at a 60° angle, and the antibacterial core-spun yarns include core yarns and an antibacterial fiber layer covering the outside of the core yarns.

2. The technical fabric for inhibiting microbial growth according to claim 1, characterized in that, The antibacterial nylon filament has a fineness of 75D / 144-288F, and the antibacterial polyester filament has a fineness of 54D / 24F.

3. The technological fabric for inhibiting microbial growth according to claim 1, characterized in that, The core yarn is hemp fiber yarn or Apocynum venetum fiber yarn; the antibacterial fiber layer uses silver fiber, bamboo fiber, chitin fiber or alginate fiber.

4. The technical fabric for inhibiting microbial growth according to claim 1, characterized in that, The planar triaxial fabric (4) has an antibacterial film (5) on the side of the fabric away from the base layer (1).

5. The technical fabric for inhibiting microbial growth according to claim 4, characterized in that, The antibacterial membrane (5) includes a waterproof membrane and nano antibacterial particles sputtered onto the surface of the waterproof membrane by vacuum deposition technology. The nano antibacterial particles are nano silver or nano zinc oxide.

6. A technological fabric for inhibiting microbial growth according to any one of claims 1 to 5, characterized in that, The antibacterial waterborne polyurethane coating (2) has a carbon silver film (6) hot-stamped on the side of the base fabric layer (1) away from the base fabric layer.

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