A tear resistant polyvinyl chloride impregnated cloth

Abstract

The utility model discloses an anti-tearing polyvinyl chloride impregnated cloth, comprising: a base cloth, and a polyvinyl chloride resin layer formed by impregnating both sides of the base cloth; the base cloth is a five-layer regular angle interlocking structure three-dimensional tissue formed by interweaving warp yarns and weft yarns, one complete cycle of the five-layer regular angle interlocking structure three-dimensional tissue includes six warp yarns and thirty weft yarns, and the weft yarns are woven into the diagonal intersection formed by two warp yarns; the first warp yarn, the second warp yarn and the third warp yarn are high-strength fiber yarns; the fourth warp yarn, the fifth warp yarn and the sixth warp yarn are cut-resistant yarns; and the weft yarns are wear-resistant yarns. Based on the anti-tearing polyvinyl chloride impregnated cloth, the three-dimensional angle interlocking structure can greatly improve the anti-slippage ability between the yarns, can disperse the tearing load in multiple directions when stressed, and can improve the anti-tearing ability of the impregnated cloth; the warp yarns can significantly improve the overall anti-fracture and anti-tearing ability of the base cloth, resist cutting damage, and the wear-resistant yarns can reduce the wear of the impregnated cloth during use.

Description

Technical Field

[0001] This utility model relates to a tear-resistant polyvinyl chloride impregnated fabric, belonging to the field of textile fabric technology. Background Technology

[0002] PVC-coated fabric is made by coating a layer of PVC coating onto a fabric, giving it excellent chemical stability and weather resistance. It is widely used in construction, automotive, shipbuilding, and furniture industries. However, traditional PVC-coated fabrics have relatively simple tear-resistant structures, making them prone to tearing in dusty environments or frequent contact with other objects, such as in construction projects. Materials used outdoors, such as outdoor tent fabrics, require good waterproof and tear-resistant properties to withstand sudden wind and rain. Meanwhile, with the development of the advertising industry, the application of lightbox fabric is becoming increasingly widespread, but traditional lightbox fabrics lack sufficient tear resistance. In complex outdoor environments, such as strong winds and external impacts, they are prone to tearing, affecting the advertising display effect and shortening the overall lifespan. Therefore, this application provides a tear-resistant PVC-impregnated fabric. Utility Model Content

[0003] The purpose of this invention is to provide a tear-resistant polyvinyl chloride impregnated fabric that is designed to have better tear resistance compared to traditional PVC coated fabrics.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: a tear-resistant polyvinyl chloride impregnated fabric, comprising: a base fabric, and polyvinyl chloride resin layers formed by impregnation on both sides of the base fabric; the base fabric is a three-dimensional structure with a five-layer regular angle interlocking structure woven from warp and weft yarns, and a complete cycle of the five-layer regular angle interlocking structure includes six warp yarns and thirty weft yarns, with the weft yarns woven into the oblique cross formed by two of the warp yarns; the first, second, and third warp yarns are high-strength fiber yarns; the fourth, fifth, and sixth warp yarns are cut-resistant yarns; and the weft yarns are abrasion-resistant yarns.

[0005] Based on the above scheme and as a preferred embodiment of the above scheme: the high-strength fiber yarn is high-strength polyester filament.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the cut-resistant yarn is PVA tungsten wire core-spun yarn.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the cut-resistant yarn is ultra-high molecular weight polyethylene fiber yarn.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the wear-resistant yarn is a bio-based nylon filament.

[0009] The beneficial effects of this utility model are as follows: Based on the tear-resistant PVC impregnated fabric of this utility model, the three-dimensional interlocking structure allows the warp and weft yarns to form a stable interlacing and locking in the plane and in the fabric thickness direction, which greatly improves the anti-slip ability between the yarns. When under stress, the tear load can be dispersed in multiple directions to avoid stress concentration at the tear. From a structural perspective, this lays an excellent tear-resistant foundation for the impregnated fabric. The warp yarns include high-strength fiber yarns and cut-resistant yarns, which can significantly improve the overall fracture and tear resistance of the base fabric, resist cutting damage, and ensure that the impregnated fabric is not easily damaged when subjected to external force. The weft yarns use abrasion-resistant yarns, which can reduce the wear of the impregnated fabric during use and extend its overall service life. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the tear-resistant polyvinyl chloride impregnated fabric involved in this utility model; Figure 2 This is a schematic diagram of the structure of the base fabric involved in this utility model; In the diagram: 1-base fabric, 2-polyvinyl chloride resin layer, 11-first warp yarn, 12-second warp yarn, 13-third warp yarn, 14-fourth warp yarn, 15-fifth warp yarn, 16-sixth warp yarn, 3-weft yarn. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0012] Example 1 Combination Figure 1 This embodiment provides a detailed description of a tear-resistant polyvinyl chloride (PVC) impregnated fabric, comprising: a base fabric 1, and PVC resin layers 2 formed by impregnation on both sides of the base fabric 1; the base fabric 1 is a three-dimensional structure with a five-layer regular angle interlocking structure woven from warp and weft yarns, and a complete cycle of the five-layer regular angle interlocking structure includes six warp yarns and thirty weft yarns, with the weft yarns woven into the oblique cross formed by two of the warp yarns; the first warp yarn 11, the second warp yarn 12, and the third warp yarn 13 are high-strength fiber yarns; the fourth warp yarn 14, the fifth warp yarn 15, and the sixth warp yarn 16 are cut-resistant yarns; and the weft yarn 3 is an abrasion-resistant yarn.

[0013] The three-dimensional interlocking structure allows the warp and weft yarns to form a stable interlocking and locking in the plane and in the fabric thickness direction, which greatly improves the anti-slip ability between the yarns. When under stress, it can disperse the tear load in multiple directions and avoid stress concentration at the tear. From the structural level, it lays an excellent tear-resistant foundation for the impregnated fabric and effectively solves the problem that traditional PVC coated fabrics are easy to tear due to their simple structure.

[0014] First, the base fabric is desized, degreased, and dried to remove oil and impurities from its surface, ensuring uniform penetration of the polyvinyl chloride (PVC) resin. The PVC resin, plasticizer, and stabilizer are then stirred into a uniform paste. The pretreated base fabric is passed through a PVC paste tank at a constant speed, and the pressure of the impregnation rollers forces the paste to penetrate into the gaps between the warp and weft yarns, forming a preliminary structure where the yarns are wrapped in PVC. The impregnated base fabric is then placed in a high-temperature oven at 150-200°C, where the solvent in the PVC paste evaporates and the resin crosslinks to form a film, ultimately creating a stable structure where the base fabric and PVC are completely bonded.

[0015] Furthermore, the high-strength fiber yarn is high-strength polyester filament. High-strength polyester filament is a high-strength, abrasion-resistant, and high-modulus high-performance fiber. Compared with ordinary polyester filament, it has higher breaking strength and lower breaking elongation. Its breaking strength is greater than or equal to 8.4 cN / dtex, and its breaking elongation is 10-13%. It also has higher initial modulus and better creep resistance, which helps to improve the tear resistance of the base fabric.

[0016] Furthermore, the cut-resistant yarn is PVA tungsten wire core-spun yarn. PVA tungsten wire core-spun yarn uses high-strength, high-modulus PVA roving as the outer covering yarn, and adds 0.02mm tungsten wire as the core yarn during the spinning stage. The core-spun yarn is prepared on a spinning machine, where the breaking elongation and tensile strength of the tungsten wire are 5.4% and 3184MPa, respectively. The strength of the core-spun yarn mainly lies in the high-strength, high-modulus PVA outer covering yarn and the core yarn. The addition of tungsten wire to the core yarn significantly improves the tensile strength of the core-spun yarn. High-strength, high-modulus PVA fiber is a high-performance fiber with high strength, high modulus, high impact resistance, and good weather resistance. The PVA tungsten wire core-spun yarn achieves a cut resistance level of 5, exhibiting excellent cut-resistant performance.

[0017] Furthermore, the wear-resistant yarn is a bio-based nylon filament. Bio-based nylon is a polyamide product produced by converting alkanes, bio-based alkanes, oil scraps, fatty acids, and biomass into pentanediamine through a bioprocess, followed by polymerization. Bio-based nylon has better wear resistance than nylon 6, mainly because it possesses higher tensile strength and elongation, allowing it to store more tensile energy. During friction, the fibers are subjected to repeated stress; fabrics with higher tensile strength and elongation can better withstand this stress, thus exhibiting better wear resistance.

[0018] Example 2 The difference from Example 1 is that the cut-resistant yarn is ultra-high molecular weight polyethylene fiber yarn. Ultra-high molecular weight polyethylene fiber is the strongest chemical fiber, with a highly symmetrical methylene structure in its main chain. Its breaking strength is 30-50 cN / dtex, and its initial modulus is greater than 900 cN / dtex. It is a high-strength, high-modulus fiber with good impact resistance and cut resistance.

[0019] 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 tear-resistant polyvinyl chloride impregnated fabric, characterized in that, include: The base fabric (1) and the polyvinyl chloride resin layer (2) formed by impregnation on both sides of the base fabric (1); the base fabric (1) is a three-dimensional structure with a five-layer regular angle interlocking structure woven from warp and weft yarns. A complete cycle of the five-layer regular angle interlocking structure includes six warp yarns and thirty weft yarns. The weft yarns are woven into the oblique cross formed by two of the warp yarns. The first warp yarn (11), the second warp yarn (12) and the third warp yarn (13) are high-strength fiber yarns. The fourth warp yarn (14), the fifth warp yarn (15) and the sixth warp yarn (16) are cut-resistant yarns. The weft yarn (3) is abrasion-resistant yarn.

2. The tear-resistant polyvinyl chloride impregnated fabric according to claim 1, characterized in that, The high-strength fiber yarn is a high-strength polyester filament.

3. The tear-resistant polyvinyl chloride impregnated fabric according to claim 1, characterized in that, The cut-resistant yarn is PVA tungsten wire core-spun yarn.

4. The tear-resistant polyvinyl chloride impregnated fabric according to claim 1, characterized in that, The cut-resistant yarn is ultra-high molecular weight polyethylene fiber yarn.

5. The tear-resistant polyvinyl chloride impregnated fabric according to claim 1, characterized in that, The wear-resistant yarn is a bio-based nylon filament.

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