Wear-resistant sofa leather base cloth

Abstract

The utility model discloses wear-resistant sofa leather base cloth which comprises an anti-mite base cloth layer, a planar three-way fabric layer, an antibacterial non-woven fabric layer and a wear-resistant fabric layer which are compounded through a hot melt adhesive, the wear-resistant fabric layer is formed by weaving wear-resistant covering yarns, and the wear-resistant covering yarns comprise core yarns and fine denier chinlon multifilaments covering the outer sides of the core yarns; the bi-component filament comprises a core layer and a skin layer; the core layer is conventional polyester, and the skin layer is low-melting-point polyester; the surface three-way fabric layer is formed by interweaving three groups of strong plied yarns at an included angle of 60 degrees; the strong plied yarn comprises ultra-high molecular weight polyethylene filaments and PTFE split film filaments which are doubled and twisted. Polyamide fibers are used in the wear-resistant fabric layer, and the good wear resistance of the polyamide fibers is utilized. And low-melting-point parts in the polyester bicomponent filaments in the wear-resistant fabric layer are bonded with adjacent fibers. The fineness of the chinlon monofilaments is small, so that fluff formed by the chinlon monofilaments is soft in touch. Due to the planar three-way fabric layer, the prepared sofa synthetic leather has good tear resistance.

Description

Technical Field

[0001] The utility model relates to a wear-resistant sofa leather base cloth, belonging to the technical field of leather base cloths. Background Art

[0002] Sofa leather is the primary raw material used in the production of genuine leather sofas, forming the surface of the sofa. Sofa leather comes from a variety of sources, including genuine leather, PU, ​​and PVC upper leather. The sofa manufacturing process requires a large amount of artificial leather fabric. This fabric primarily serves as the base material for synthetic leather. After being impregnated with latex, it undergoes coating and finishing to become synthetic leather. The excellent properties of synthetic leather are irreplaceable to natural leather. During the production process, the synthetic leather used in sofas is sanded after impregnation to create a velvety surface. This synthetic leather for sofas requires excellent wear resistance, and the resulting velvety surface is formed by sanding the fibers in the fabric. Therefore, the challenge is to develop a wear-resistant fabric for sofa leather. Utility Model Content

[0003] The utility model aims to provide a wear-resistant sofa leather base cloth. Nylon fiber is used in the wear-resistant fabric layer, which has good wear-resistant effect.

[0004] In order to solve the above technical problems, the purpose of this utility model is achieved as follows:

[0005] The utility model relates to a wear-resistant sofa leather base fabric, comprising an anti-mite base fabric layer, a planar three-dimensional fabric layer, an antibacterial non-woven fabric layer and a wear-resistant fabric layer which are compounded by hot melt adhesive;

[0006] The wear-resistant fabric layer is woven from wear-resistant core-spun yarn, which includes a core yarn and fine-denier nylon multifilament wrapped around the outside of the core yarn; the core yarn includes high-strength nylon filaments and polyester bicomponent filaments twisted together, and the fineness of the single filaments in the fine-denier nylon multifilament is not greater than 1.2D; the bicomponent filaments include a core layer and a skin layer; the core layer is conventional polyester, and the skin layer is low-melting-point polyester;

[0007] The three-dimensional fabric layer is formed by three groups of strong strands interwoven at an angle of 60 degrees to each other; the strong strands include ultra-high molecular weight polyethylene filaments and PTFE split film filaments twisted in parallel.

[0008] On the basis of the above solution and as a preferred solution of the above solution: the fineness of the fine denier nylon multifilament is 40-50D / 48-96F.

[0009] On the basis of the above solution and as a preferred solution of the above solution: the antibacterial non-woven fabric layer is an antibacterial polyester needle-punched non-woven fabric.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the cross section of the monofilament in the fine denier nylon multifilament includes a straight fiber body and raised portions symmetrically arranged on both sides of the fiber body.

[0011] On the basis of the above solution and as a preferred solution of the above solution: the antibacterial non-woven fabric layer and the wear-resistant fabric layer are provided with an antistatic fabric layer.

[0012] On the basis of the above solution and as a preferred solution of the above solution: the antistatic fabric layer is woven from antistatic yarns, and the antistatic yarns include metal filaments and conductive fibers coated on the outside of the metal filaments.

[0013] The beneficial effects of the present invention are as follows: the wear-resistant sofa leather base fabric of the present invention utilizes nylon fibers in the wear-resistant fabric layer, utilizing the excellent wear resistance of nylon fibers. The low-melting-point portion of the polyester bicomponent filaments used in the wear-resistant fabric layer can bond with adjacent fibers, reducing linting. Furthermore, the fineness of the nylon monofilaments results in a soft, velvety texture. The planar triaxial fabric layer used ensures that the resulting sofa synthetic leather exhibits excellent tear resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 1 is a schematic structural diagram of a wear-resistant sofa leather base fabric according to embodiment 1;

[0015] Figure 2 is a schematic diagram of the cross-sectional structure of the nylon monofilament involved in Example 2;

[0016] Figure 3 It is a structural diagram of the wear-resistant sofa leather base fabric involved in Example 3.

[0017] The markings in the figure are as follows: 1-anti-mite base fabric layer; 2-planar three-directional fabric layer; 3-antibacterial non-woven fabric layer; 4-wear-resistant fabric layer; 41-fiber body; 42-raised part; 5-antistatic fabric layer. DETAILED DESCRIPTION

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

[0019] Example 1

[0020] Combine Figure 1 The wear-resistant sofa leather base fabric involved in this embodiment includes an anti-mite base fabric layer 1, a planar three-way fabric layer 2, an antibacterial non-woven fabric layer 3 and a wear-resistant fabric layer 4 compounded by hot melt adhesive.

[0021] The wear-resistant fabric layer 4 is woven from wear-resistant core-spun yarn, comprising a core yarn and fine-denier nylon multifilament yarn wrapped around the core yarn. The core yarn comprises high-strength nylon filaments and polyester bicomponent filaments twisted together, with the fineness of the individual filaments in the fine-denier nylon multifilament yarn no greater than 1.2D. The bicomponent filament yarn comprises a core layer and a sheath layer. The core layer is conventional polyester, and the sheath layer is low-melting-point polyester. Conventional polyester has a melting point of approximately 240°C, while low-melting-point polyester has a melting point of 70-80°C. Upon heating, the sheath layer melts and bonds to adjacent fibers, thereby enhancing the bonding between the core yarn and the fine-denier nylon multifilament yarn. The resulting fluff, formed after napping and grinding the wear-resistant fabric, is less susceptible to shedding.

[0022] The triaxial fabric layer 2 is constructed from three sets of strong yarns interwoven at a 60° angle to each other; these strong yarns include parallel-twisted ultra-high molecular weight polyethylene filaments and PTFE split-film filaments. The ultra-high molecular weight polyethylene filaments are cut-resistant, protecting the resulting synthetic leather from sharp objects. Furthermore, the fabric composed of these three yarns exhibits isotropic mechanical properties, exhibiting uniform deformation regardless of the direction of force applied. This overcomes the significant discrepancy between shear and tensile resistance found in biaxial fabrics at 45° diagonal angles.

[0023] Furthermore, the fineness of the fine denier nylon multifilament is 40-50D / 48-96F, and in this embodiment, 40D / 48F is selected, wherein the cross section of the monofilament is circular.

[0024] Furthermore, the antibacterial non-woven fabric layer 3 is an antibacterial polyester needle-punched non-woven fabric. The needle-punched non-woven fabric is formed by combing, web-forming, and needle-punching the antibacterial polyester fibers, and has an antibacterial effect.

[0025] Furthermore, the anti-mite base fabric layer 1 is interwoven with antibacterial yarn and anti-mite fiber yarn; the antibacterial yarn comprises antibacterial polyester filaments and chitin fibers coated on the outside of the antibacterial polyester filaments. The anti-mite fiber yarn is produced by spinning anti-mite fibers. The anti-mite fiber used is an antibacterial and anti-mite fiber containing bio-based silver flower microcapsules.

[0026] Example 2

[0027] Combine Figure 2 This embodiment is described in detail. The wear-resistant sofa leather base fabric of this embodiment differs from the first embodiment in that the cross-section of the monofilaments in the fine-denier nylon multifilament comprises a straight-line fiber body 41 and symmetrically arranged protrusions 42 on either side of the fiber body 41. The surface shape is a slender, flat structure, very similar to the shape of a caterpillar, with good uprightness, allowing the fiber to quickly stand upright after bending.

[0028] Example 3

[0029] Combine Figure 3 , this embodiment is described in detail. The wear-resistant sofa leather base fabric of this embodiment differs from that of the first embodiment in that the antibacterial non-woven fabric layer 3 and the wear-resistant fabric layer 4 are provided with an antistatic fabric layer 5. The antistatic fabric layer 5 is woven from antistatic yarns comprising metal filaments and conductive fibers coated on the outside of the metal filaments.

[0030] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A wear-resistant sofa leather base fabric, characterized in that: It comprises an anti-mite base fabric layer (1), a planar three-dimensional fabric layer (2), an antibacterial non-woven fabric layer (3) and a wear-resistant fabric layer (4) which are compounded by hot melt adhesive; The wear-resistant fabric layer (4) is woven from wear-resistant core-spun yarn, the wear-resistant core-spun yarn comprising a core yarn and a fine-denier nylon multifilament wrapped around the outside of the core yarn; the core yarn comprises high-strength nylon filaments and polyester bicomponent filaments twisted together, the fineness of the single filaments in the fine-denier nylon multifilament is not greater than 1.2D; the polyester bicomponent filaments comprise a core layer and a skin layer; the core layer is conventional polyester, and the skin layer is low-melting-point polyester; The three-dimensional fabric layer (2) is formed by three groups of strong strands interwoven at an angle of 60 degrees to each other; the strong strands include ultra-high molecular weight polyethylene filaments and PTFE split film filaments twisted in parallel.

2. The wear-resistant sofa leather base fabric according to claim 1, characterized in that: The fineness of the fine denier nylon multifilament is 40-50D / 48-96F.

3. The wear-resistant sofa leather base fabric according to claim 1, characterized in that: The antibacterial non-woven fabric layer (3) is antibacterial polyester needle-punched non-woven fabric.

4. The wear-resistant sofa leather base fabric according to claim 1, characterized in that: The cross section of a single filament in the fine-denier nylon multifilament comprises a straight-line fiber main body (41) and raised portions (42) symmetrically arranged on both sides of the fiber main body (41).

5. The wear-resistant sofa leather base fabric according to claim 1, characterized in that: The antibacterial non-woven fabric layer (3) and the wear-resistant fabric layer (4) are provided with an antistatic fabric layer (5).

6. The wear-resistant sofa leather base fabric according to claim 5, characterized in that: The antistatic fabric layer (5) is woven from antistatic yarns, and the antistatic yarns include metal filaments and conductive fibers coated on the outside of the metal filaments.

Images