A multi-layer cut-resistant knit fabric composite structure

Abstract

The utility model relates to functional textile material technical field, concretely disclose a multilayer anti -cut knitted fabric composite structure from outside to inside includes outer layer for first anti -cut knitted layer, is woven from high -strength high -modulus fibre yarn, middle layer is non -woven fibre net layer, is formed by high -performance microfibril fixed formation of disorder arrangement, inner layer is second anti -cut knitted layer, is woven from high -strength high -modulus fibre yarn and elastic fibre yarn, balanced the protection performance and the wearing comfort through three -layer composite structure, the outer layer provides the first anti -cut barrier, the middle layer effectively absorbs impact energy, the inner layer ensures close -fit soft and activity freedom, significantly improves the overall anti -cut reliability under the premise of not increasing thickness and weight greatly, the structure keeps the air permeability and elasticity of knitted material simultaneously, solve the problem of traditional anti -cut material rigid and heavy, especially suitable for the labor protection and outdoor sports scene that need long -time wearing.

Description

Technical Field

[0001] This utility model relates to the field of functional textile materials technology, and specifically discloses a multi-layer cut-resistant knitted fabric composite structure. Background Technology

[0002] In fields such as occupational safety and protection, outdoor sports, and specialized industries, the demand for cut-resistant fabrics is increasing. Traditional cut-resistant materials are mostly woven structures or achieved through coatings or plating. While they offer some protection, they generally suffer from drawbacks such as stiffness, poor breathability, heavy weight, and restricted movement, affecting wearing comfort and operational flexibility.

[0003] In the existing technology, there are also knitted cut-resistant gloves or fabrics made of high-strength and high-modulus fibers (such as UHMWPE fiber, glass fiber, aramid fiber, etc.), but their cut resistance level often needs to be achieved by increasing the yarn density or material thickness, which in turn sacrifices the softness and elasticity of the material. When a single knitted layer structure is impacted by a sharp object, the yarn is easily cut and the overall structure is damaged, so the reliability of protection needs to be improved. Utility Model Content

[0004] This invention proposes a multi-layer cut-resistant knitted fabric composite structure, which balances protective performance and wearing comfort through a three-layer composite structure. The outer layer provides the first line of cut protection, the middle layer effectively absorbs impact energy, and the inner layer ensures a close-fitting softness and freedom of movement.

[0005] This utility model is implemented as follows: a multi-layer cut-resistant knitted fabric composite structure, from the outside to the inside, includes: an outer layer, which is the first cut-resistant knitted layer, woven from high-strength and high-modulus fiber yarn;

[0006] The middle layer is a nonwoven fiber web layer, which is formed by fixing randomly arranged high-performance microfibers;

[0007] The inner layer is a second cut-resistant knitted layer, woven from high-strength, high-modulus fiber yarns and elastic fiber yarns.

[0008] As a preferred embodiment of the multi-layer cut-resistant knitted fabric composite structure of this utility model, the high-strength, high-modulus fiber yarn used in the outer layer is ultra-high molecular weight polyethylene fiber.

[0009] As a preferred embodiment of the multi-layer cut-resistant knitted fabric composite structure of this utility model, the non-woven fiber web layer of the middle layer is aramid with a thickness of 0.2-0.5mm.

[0010] In a preferred embodiment of the multi-layer cut-resistant knitted fabric composite structure of this utility model, the high-strength, high-modulus fiber yarn is ultra-high molecular weight polyethylene fiber yarn, and the elastic fiber is polyester elastic fiber.

[0011] In a preferred embodiment of the multi-layer cut-resistant knitted fabric composite structure of this utility model, the outer layer, the middle layer, and the inner layer are all bonded together by hot melt adhesive film between adjacent layers.

[0012] As a preferred embodiment of the multi-layer cut-resistant knitted fabric composite structure of this utility model, the outer surface of the outer layer is provided with a wear-resistant layer, which is a polyurethane coating.

[0013] The beneficial effects of this utility model are:

[0014] The three-layer composite structure balances protective performance and wearing comfort. The outer layer provides the first line of defense against cuts, the middle layer effectively absorbs impact energy, and the inner layer ensures a close fit, softness, and freedom of movement. It significantly improves overall cut-resistant reliability without greatly increasing thickness and weight. At the same time, the structure maintains the breathability and elasticity of knitted materials, solving the problem of traditional cut-resistant materials being stiff and bulky. It is especially suitable for occupational safety and outdoor sports scenarios that require long-term wear. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] The markings in the diagram are: 1. Outer layer; 2. Middle layer; 3. Inner layer; 4. Hot melt adhesive film; 5. Wear-resistant layer. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0020] Please see Figure 1-2 A multi-layer cut-resistant knitted fabric composite structure, comprising, from the outside to the inside: an outer layer 1, which is the first cut-resistant knitted layer, woven from high-strength, high-modulus fiber yarn;

[0021] The middle layer 2 is a non-woven fiber web layer, which is formed by fixing randomly arranged high-performance microfibers;

[0022] Inner layer 3 is the second cut-resistant knitted layer, which is woven from high-strength, high-modulus fiber yarn and elastic fiber yarn.

[0023] In this embodiment, protection is achieved through a three-layer composite structure: the outer layer 1 is woven from ultra-high molecular weight polyethylene fibers to form the first cut-resistant barrier, and its warp and weft interlacing structure can effectively disperse cutting stress; the middle layer 2 is a non-woven fiber web composed of aramid microfibers, and the randomly arranged fibers absorb and dissipate impact energy through mutual entanglement; the inner layer 3 is a blend of ultra-high molecular weight polyethylene fibers and polyester elastic fibers, which provides basic protection while ensuring fabric elasticity. The layers are firmly bonded together by a hot melt adhesive film 4. The surface of the outer layer 1 is also provided with a polyurethane wear-resistant layer 5 to further improve surface durability. When subjected to impact from a sharp object, the outer layer 1 first resists and disperses the initial cutting force, the middle layer 2 effectively absorbs energy through fiber slippage and breakage, and the inner layer 3 provides final protection and maintains wearing comfort, significantly improving overall cut resistance without affecting flexibility.

[0024] As a technical optimization of this utility model, the high-strength, high-modulus fiber yarn used in the outer layer 1 is ultra-high molecular weight polyethylene fiber.

[0025] In this embodiment: the high-strength, high-modulus fiber yarn used in the outer layer 1 is ultra-high molecular weight polyethylene fiber, which has extremely high specific strength and modulus, can effectively resist knife cutting, and gives the outer layer 1 excellent cut resistance while maintaining lightweight characteristics.

[0026] As a technical optimization of this utility model, the nonwoven fiber web of the intermediate layer 2 is aramid with a thickness of 0.2-0.5mm.

[0027] In this embodiment: the intermediate layer 2 is made of aramid fiber and has a thickness of 0.2-0.5mm. The high toughness and energy absorption characteristics of aramid fiber disperse stress through the microfiber network, achieving the best buffering performance with a limited thickness.

[0028] As a technical optimization of this utility model, the high-strength, high-modulus fiber yarn is ultra-high molecular weight polyethylene fiber yarn, and the elastic fiber is polyester elastic fiber.

[0029] In this embodiment: the inner layer 3 is made of ultra-high molecular weight polyethylene and polyester elastic fiber, combining the protective properties of high-strength fiber and the extensibility of elastic fiber to ensure that the inner layer 3 has both basic protective function and close-fitting comfort.

[0030] As a technical optimization of this utility model, the outer layer 1, the middle layer 2 and the inner layer 3 are all bonded together by hot melt adhesive film 4 between adjacent layers.

[0031] In this embodiment: each layer is bonded by hot melt adhesive film 4, and a hot melt composite process is used to achieve a firm bond between the layers, avoid interlayer displacement and maintain overall flexibility.

[0032] As a technical optimization of this utility model, the outer surface of the outer layer 1 is provided with a wear-resistant layer 5, which is a polyurethane coating.

[0033] In this embodiment, the wear-resistant layer 5 is a polyurethane coating, which hardens the surface to improve wear resistance and scratch resistance.

[0034] The working principle and usage process of this utility model are as follows: When a sharp external object impacts the fabric, the high-strength, high-modulus fiber yarn of the outer layer 1 first transforms the point impact force into planar stress through the warp and weft interlacing structure and achieves initial dispersion; some of the kinetic energy that is not completely dissipated is transferred to the middle layer 2, where the nonwoven fiber web composed of aramid microfibers further absorbs energy through the slippage, stretching, and breaking processes between fibers, and the disordered fiber network generates multi-directional resistance to effectively hinder the cutting process; when the remaining energy is transferred to the inner layer 3, the elastic fibers in its woven structure undergo elastic deformation to prolong the action time, while the high-strength fibers provide the final protective barrier. Throughout the process, the hot melt adhesive film 4 ensures that each layer deforms synergistically without separation, and the outer wear-resistant layer 5 reduces the risk of initial damage through surface hardening treatment.

[0035] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0036] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A multi-layer cut-resistant knitted fabric composite structure, characterized in that: From the outside to the inside, it includes: outer layer (1), which is the first cut-resistant knitted layer, woven from high-strength and high-modulus fiber yarn; The intermediate layer (2) is a nonwoven fiber web layer, which is formed by fixing disordered high-performance microfibers; The inner layer (3) is the second cut-resistant knitted layer, which is woven from high-strength, high-modulus fiber yarn and elastic fiber yarn.

2. The multi-layer cut-resistant knitted fabric composite structure according to claim 1, characterized in that: The high-strength, high-modulus fiber yarn used in the outer layer (1) is ultra-high molecular weight polyethylene fiber.

3. The multi-layer cut-resistant knitted fabric composite structure according to claim 1, characterized in that: The nonwoven fiber web of the intermediate layer (2) is aramid with a thickness of 0.2-0.5 mm.

4. The multi-layer cut-resistant knitted fabric composite structure according to claim 1, characterized in that: The high-strength, high-modulus fiber yarn is ultra-high molecular weight polyethylene fiber yarn, and the elastic fiber is polyester elastic fiber.

5. The multi-layer cut-resistant knitted fabric composite structure according to claim 1, characterized in that: The outer layer (1), the middle layer (2) and the inner layer (3) are all bonded together by a hot melt adhesive film (4) between adjacent layers.

6. The multi-layer cut-resistant knitted fabric composite structure according to claim 1, characterized in that: The outer surface of the outer layer (1) is provided with a wear-resistant layer (5), which is a polyurethane coating.

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