Static-resistant polyester fabric

Abstract

The utility model belongs to the technical field of polyester fabrics, and discloses an anti-static polyester fabric which comprises a polyester base fabric layer, warp and weft yarns of the polyester base fabric layer are formed by blending polyester fibers and conductive fibers, and the conductive fibers account for 3%-8% of the total mass of the polyester base fabric layer; the outer surface of the polyester base cloth layer is coated with an anti-static coating, and the anti-static coating is formed by compounding polyurethane resin and carbon nanotubes; a conductive silver paste layer which is distributed in a grid shape is arranged between the polyester base cloth layer and the antistatic coating. The device can provide a long-acting antistatic capability, and can maintain partial conductivity even if the surface coating is worn, thereby improving the use effect of the polyester fabric.

Description

Technical Field

[0001] This utility model belongs to the technical field of polyester fabric, and more specifically, it relates to an antistatic polyester fabric. Background Technology

[0002] Polyester fabric is a very common synthetic fiber clothing fabric used in daily life. Its biggest advantages are its excellent wrinkle resistance and shape retention, making it suitable for making outerwear, various bags, tents and other outdoor products.

[0003] Some polyester fabrics currently available have poor antistatic properties, as they are only coated with an antistatic layer. Over time, some of the antistatic layer on the surface of the polyester fabric may peel off, thus reducing the antistatic effect of the polyester fabric.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a static-resistant polyester fabric, in order to achieve a more practical value. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an antistatic polyester fabric, which is achieved by the following specific technical means:

[0006] An antistatic polyester fabric, comprising a polyester base fabric layer,

[0007] The warp and weft yarns of the polyester base fabric layer are made of a blend of polyester fibers and conductive fibers, wherein the conductive fibers account for 3%-8% of the total mass of the polyester base fabric layer.

[0008] The outer surface of the polyester base fabric layer is coated with an antistatic coating, which is composed of polyurethane resin and carbon nanotubes.

[0009] A conductive silver paste layer with a grid-like distribution is provided between the polyester base fabric layer and the antistatic coating.

[0010] Furthermore, the conductive fiber is at least one of metal fiber, carbon fiber or conductive polyester, and the fineness of the conductive fiber is 1-5D.

[0011] Furthermore, the thickness of the antistatic coating is 0.05-0.2 mm, and the mass percentage of carbon nanotubes in the coating is 5%-12%.

[0012] Furthermore, the conductive silver paste layer has a rhomboid mesh structure with a mesh density of 20-40 mesh.

[0013] Furthermore, the inner surface of the polyester base fabric layer is also laminated with a waterproof and breathable membrane, which is bonded to the polyester base fabric layer with hot melt adhesive.

[0014] Furthermore, the conductive fiber is blended in a ratio of 1:1 to 1:3 in the warp and weft yarns.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By combining conductive fibers, an antistatic coating, and a conductive silver paste layer, a conductive network is formed within the substrate through the physical bonding of conductive fibers and polyester fibers, providing long-lasting antistatic capabilities (even if the surface coating wears down, it can still maintain some conductivity). The antistatic coating is composed of polyurethane resin and carbon nanotubes. The polyurethane resin provides surface abrasion resistance, while the carbon nanotubes impart high conductivity to the coating, enabling instant charge dissipation and reducing surface resistivity. The conductive silver paste layer has a grid structure, which forms a "highway" for rapid charge conduction, solving the problem of local charge accumulation caused by uneven thickness in traditional coatings and improving antistatic uniformity. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2 This is a three-dimensional cross-sectional view of the present invention.

[0019] Figure 3 This is a cross-sectional perspective view of a portion of the structure of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Polyester base fabric layer; 101. Polyester fiber; 102. Conductive fiber; 2. Antistatic coating; 3. Conductive silver paste layer; 4. Waterproof and breathable membrane. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 3 As shown:

[0027] This utility model provides an antistatic polyester fabric, comprising a polyester base fabric layer 1.

[0028] The warp and weft yarns of the polyester base fabric layer 1 are made of a blend of polyester fiber 101 and conductive fiber 102, with the conductive fiber 102 accounting for 3%-8% of the total mass of the polyester base fabric layer 1.

[0029] The outer surface of the polyester base fabric layer 1 is coated with an antistatic coating 2, which is composed of polyurethane resin and carbon nanotubes.

[0030] A conductive silver paste layer 3 with a grid-like distribution is provided between the polyester base fabric layer 1 and the antistatic coating 2.

[0031] The conductive fiber 102 is at least one of metal fiber, carbon fiber or conductive polyester, and the fineness of the conductive fiber 102 is 1-5D.

[0032] The thickness of the antistatic coating 2 is 0.05-0.2 mm, and the mass ratio of carbon nanotubes in the coating is 5%-12%. When the thickness of the antistatic coating 2 is less than 0.05 mm, the coating is prone to cracking and the conductive network is discontinuous. When the thickness of the antistatic coating 2 is greater than 0.2 mm, it will affect the breathability and softness of the fabric. When the mass ratio of carbon nanotubes in the coating is less than 5%, insufficient conductivity is likely to occur. When the mass ratio of carbon nanotubes in the coating is greater than 12%, the coating adhesion is likely to decrease.

[0033] Among them, the conductive silver paste layer 3 has a rhombic grid structure with a grid density of 20-40 mesh. The rhombic grid structure can improve the charge conduction efficiency. The low density (20 mesh) can ensure conductivity while minimizing the amount of silver paste used, while the high density (40 mesh) can be used in environments with high electrostatic risk.

[0034] The inner surface of the polyester base fabric layer 1 is also laminated with a waterproof and breathable membrane 4. The waterproof and breathable membrane 4 is bonded to the polyester base fabric layer 1 by hot melt adhesive. The waterproof and breathable membrane 4 can improve the waterproof and breathable effect of the polyester fabric.

[0035] The conductive fiber 102 is blended in the warp and weft yarns at a ratio of 1:1 to 1:3, and the conductive fiber 102 is concentrated in the weft direction to solve the problem of increased resistance caused by transverse stretching of the fabric.

[0036] The working principle of this embodiment:

[0037] The physical combination of conductive fiber 102 and polyester fiber 101 forms an internal conductive network in the substrate, providing long-lasting antistatic capability (even if the surface coating is worn, it can still maintain some conductivity). The antistatic coating 2 is composed of polyurethane resin and carbon nanotubes. The polyurethane resin provides surface wear resistance, and the carbon nanotubes give the coating high conductivity, enabling instant charge dissipation and reducing surface resistivity. The conductive silver paste layer 3 has a grid structure, which forms a "highway" for rapid charge conduction, solving the problem of local charge accumulation caused by uneven thickness in traditional coatings and improving antistatic uniformity.

[0038] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An antistatic polyester fabric, comprising a polyester base fabric layer (1), characterized in that: The warp and weft yarns of the polyester base fabric layer (1) are made of a blend of polyester fiber (101) and conductive fiber (102), and the conductive fiber (102) accounts for 3%-8% of the total mass of the polyester base fabric layer (1). The outer surface of the polyester base fabric layer (1) is coated with an antistatic coating (2), which is composed of polyurethane resin and carbon nanotubes. A conductive silver paste layer (3) with a grid-like distribution is provided between the polyester base fabric layer (1) and the antistatic coating (2).

2. The antistatic polyester fabric as described in claim 1, characterized in that: The conductive fiber (102) is at least one of metal fiber, carbon fiber or conductive polyester, and the fineness of the conductive fiber (102) is 1-5D.

3. The antistatic polyester fabric as described in claim 1, characterized in that: The thickness of the antistatic coating (2) is 0.05-0.2 mm, and the mass percentage of carbon nanotubes in the coating is 5%-12%.

4. The antistatic polyester fabric as described in claim 1, characterized in that: The conductive silver paste layer (3) has a rhomboid mesh structure with a mesh density of 20-40 mesh.

5. The antistatic polyester fabric as described in claim 1, characterized in that: The inner surface of the polyester base fabric layer (1) is also coated with a waterproof and breathable membrane (4), which is bonded to the polyester base fabric layer (1) by hot melt adhesive.

6. The antistatic polyester fabric as described in claim 1, characterized in that: The conductive fiber (102) is blended in the warp and weft yarns at a ratio of 1:1 to 1:3.

Images