Flame-retardant synthetic leather base cloth
Through the composite flame retardant fabric base layer, planar three-way fabric layer and non-woven fabric layer, the problem of poor flame retardant performance of synthetic leather base cloth is solved, good flame retardant and cut-proof effect is achieved, and the strength and tear resistance of synthetic leather are improved.
Patent Information
- Application Number
- CN202422376198.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The flame retardant performance of existing synthetic leather base cloth is poor, making it difficult to meet the waterproof and cut-proof requirements in outdoor use scenarios.
The flame-retardant fabric base layer, a flame-retardant plane three-way fabric layer, a flame-retardant heat-retardant layer and a flame-retardant non-woven layer are composed of flame-retardant core yarn, ultra-high molecular weight polyethylene and PTFE cracked film filaments, polyimide aerogel fiber needle-punched non-woven fabric and flame-retardant viscose non-woven fabric. Each layer of materials has a flame-retardant effect and is interwoven and composited through specific weaving methods.
It achieves good flame retardant effect and cut-proof performance of synthetic leather base fabrics, and improves the strength and tear resistance of synthetic leather.
Smart Images
Figure CN223290459U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a flame retardant synthetic leather base cloth, belonging to the technical field of synthetic leather base cloth. Background Art
[0002] Synthetic leather base fabric is mainly used as the base material of synthetic leather. After being impregnated with latex, it is coated and finished to become synthetic leather. The performance of the synthetic leather base fabric determines the performance of the synthetic base to a certain extent. If in some usage scenarios, synthetic leather is required to be waterproof and flame retardant, waterproofing can be achieved by applying waterproof coating and other measures during the process of making synthetic leather from the synthetic leather base fabric. If the flame retardant performance of the synthetic leather base fabric is not good, the flame retardant effect that can be achieved in the subsequent processing process cannot meet the requirements. In addition, in outdoor usage scenarios, there are certain requirements for the strength and cut resistance of synthetic leather. How to prepare a synthetic leather base fabric with flame retardant effect and cut resistance has become a problem to be solved. Utility Model Content
[0003] The utility model aims to provide a flame retardant synthetic leather base cloth, which has good flame retardant and cut-resistant effects.
[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 flame-retardant synthetic leather base fabric, comprising a flame-retardant fabric base layer, a flame-retardant planar three-dimensional fabric layer, a flame-retardant heat-insulating layer and a flame-retardant non-woven fabric layer compounded by a flame-retardant hot-melt adhesive;
[0006] The flame retardant fabric base layer is woven with flame retardant core-spun yarn, and the flame retardant core-spun yarn includes aramid 1313 filaments and polyacrylonitrile pre-oxidized yarn fibers coated on the outside of the aramid 1313 filaments;
[0007] The flame retardant planar three-way fabric layer 2 is formed by three groups of flame retardant strong strands interwoven at an angle of 60 degrees to each other; the flame retardant strong strands include parallel twisted ultra-high molecular weight polyethylene and PTFE split film filaments.
[0008] On the basis of the above solution and as a preferred solution of the above solution: the flame retardant heat insulation layer is a polyimide aerogel fiber needle-punched non-woven fabric.
[0009] On the basis of the above solution and as a preferred solution of the above solution: the flame retardant non-woven fabric layer is a flame retardant viscose non-woven fabric or a polyacrylonitrile pre-oxidized silk fiber non-woven fabric.
[0010] The beneficial effects of the present invention are as follows: the flame-retardant synthetic leather base fabric of the present invention has flame-retardant properties in all layers, thereby providing excellent flame-retardant properties. The ultra-high molecular weight polyethylene and PTFE split film filaments used in the flame-retardant three-dimensional flat fabric layer have excellent strength, cut resistance, and tear resistance. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the flame retardant synthetic leather base fabric involved in Example 1.
[0012] The markings in the figure are as follows: 1-flame retardant fabric base layer; 2-flame retardant flat three-directional fabric layer; 3-flame retardant thermal insulation layer; 4-flame retardant non-woven fabric layer. DETAILED DESCRIPTION
[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0014] Example 1
[0015] Combine Figure 1 This embodiment is described in detail. The flame-retardant synthetic leather base fabric of this embodiment comprises a flame-retardant fabric base layer 1, which is laminated with a flame-retardant hot-melt adhesive; a flame-retardant three-dimensional flat fabric layer 2; a flame-retardant thermal insulation layer 3; and a flame-retardant non-woven fabric layer 4. Each layer is flame-retardant, resulting in the synthetic leather base fabric of this embodiment having excellent flame-retardant properties.
[0016] The flame retardant fabric base layer 1 is woven with flame retardant core-spun yarn, which includes aramid 1313 filaments and polyacrylonitrile pre-oxidized yarn fibers covering the aramid 1313 filaments. Both the aramid 1313 filaments and the polyacrylonitrile pre-oxidized yarns have good flame retardant effects.
[0017] The flame-retardant, planar, three-dimensional fabric layer 2 is constructed from three sets of flame-retardant, strong yarns interwoven at a 60° angle. These yarns comprise parallel-twisted ultra-high molecular weight polyethylene (UHMWPE) and PTFE split-film filaments. The UHMWPE filaments are cut-resistant, protecting the resulting synthetic leather from sharp cuts. Furthermore, the fabric, constructed from these three yarns, exhibits isotropic mechanical properties, exhibiting uniform deformation regardless of the direction of force applied. This overcomes the significant discrepancies in shear and tensile resistance that can occur in bidirectional fabrics at 45° diagonal angles.
[0018] Furthermore, the flame retardant heat-insulating layer 3 is a polyimide aerogel fiber needle-punched non-woven fabric, which can provide a good heat-insulating effect for the synthetic leather base fabric.
[0019] Furthermore, the flame retardant non-woven fabric layer 4 is flame retardant viscose non-woven fabric or polyacrylonitrile pre-oxidized silk fiber non-woven fabric. In this embodiment, polyacrylonitrile pre-oxidized silk fiber non-woven fabric is selected.
[0020] 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 flame retardant synthetic leather base fabric, characterized in that: It comprises a flame-retardant fabric base layer (1), a flame-retardant planar three-dimensional fabric layer (2), a flame-retardant heat-insulating layer (3) and a flame-retardant non-woven fabric layer (4) which are compounded by a flame-retardant hot-melt adhesive; The flame retardant fabric base layer (1) is woven from flame retardant core-spun yarns, wherein the flame retardant core-spun yarns include aramid 1313 filaments and polyacrylonitrile pre-oxidized yarn fibers coated on the outside of the aramid 1313 filaments; The flame retardant planar three-dimensional fabric layer (2) is formed by three groups of flame retardant strong strands interwoven at an angle of 60 degrees to each other; the flame retardant strong strands include parallel-twisted ultra-high molecular weight polyethylene filaments and PTFE split film filaments.
2. The flame retardant synthetic leather base fabric according to claim 1, characterized in that: The flame retardant heat-insulating layer (3) is a polyimide aerogel fiber needle-punched non-woven fabric.
3. The flame retardant synthetic leather base fabric according to claim 1, characterized in that: The flame retardant non-woven fabric layer (4) is a flame retardant viscose non-woven fabric or a polyacrylonitrile pre-oxidized silk fiber non-woven fabric.