Flexible light-weight soft bulletproof and puncture-proof layer

Abstract

The utility model relates to a flexible light-weight soft bulletproof and stab-resistant layer which comprises an aramid fiber impregnated woven fabric layer and an ultra-high molecular weight polyethylene fiber non-woven fabric layer which are sequentially stacked from a bullet-facing surface to a bullet-backing surface, the weft yarn of the ultra-high molecular weight polyethylene fiber non-woven cloth is 0 degree, and the warp yarn is 45 degrees; the ultra-high molecular weight polyethylene fiber non-woven cloth is formed by compounding 45-degree oblique crossing and 0-degree orthogonal crossing, the fibers which are arranged in a crossed mode comprehensively enhance the resisting effect of the fibers on bullet and cutter puncture from all angles, the penetration resistance, sunken deformation resistance, puncture resistance and penetration resistance of bullets or fragments are guaranteed, and the service life of the bullets or the fragments is prolonged. The aramid fiber impregnated woven fabric layer and the ultra-high molecular weight polyethylene fiber non-woven fabric layer are sequentially stacked on the bullet-facing surface and the bullet-backing surface, so that light weight and flexibility are realized, and the clothing is soft and comfortable to wear after being matched with a body armor or a tactical vest. The bulletproof and stab-proof double protection is realized.

Description

Technical Field

[0001] The utility model relates to a flexible, lightweight, soft bulletproof and stab-proof layer, belonging to the technical field of safety protection. Background Art

[0002] Bulletproof vests, stab-proof clothing, bullet-proof helmets and cut-proof gloves are used to protect the safety of personnel in the public security, military, armed police forces and special departments. They only have bulletproof or stab-proof functions and are suitable for use in specific working environments. However, the current dual-proof products have complex manufacturing processes, high product prices, high hardness and / or are uncomfortable to wear, which is very inconvenient in actual use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a bulletproof and stab-proof double protection and a flexible, lightweight and bendable bulletproof and stab-proof layer.

[0004] The utility model adopts the following technical solutions:

[0005] The utility model comprises an aramid dipped woven fabric layer and an ultra-high molecular weight polyethylene fiber non-weft fabric layer which are stacked in sequence from a front-end surface to a back-end surface; the weft yarn of the ultra-high molecular weight polyethylene fiber non-weft fabric in the ultra-high molecular weight polyethylene fiber non-weft fabric layer is 0 degrees, and the warp yarn is 45 degrees.

[0006] The aramid rubber-impregnated woven fabric layer of the utility model is composed of 2 to 5 layers of aramid rubber-impregnated woven fabrics which are stacked in sequence.

[0007] The utility model discloses a aramid rubber dipped woven fabric having two layers; the aramid rubber dipped woven fabric is woven with a weft of 0 degrees and a warp of 90 degrees and then subjected to adhesive-pressing and modified phenolic resin.

[0008] The utility model discloses an ultra-high molecular weight polyethylene fiber non-wefted fabric layer which is composed of 30 to 50 layers of ultra-high molecular weight polyethylene fiber non-wefted fabrics which are stacked in sequence.

[0009] The utility model discloses an ultra-high molecular weight polyethylene fiber non-wefted fabric layer which is composed of 40 layers of ultra-high molecular weight polyethylene fiber non-wefted fabrics which are stacked in sequence.

[0010] The positive effects of the utility model are as follows: the ultra-high molecular weight polyethylene fiber non-weft cloth of the utility model is composited by 45-degree oblique cross and 0-degree orthogonal cross. The cross-arranged fibers comprehensively enhance the fiber's resistance to bullet and knife puncture from all angles, ensuring the bullet or fragment resistance, resistance to dent deformation, and resistance to puncture and penetration. The aramid dipped woven cloth layer and the ultra-high molecular weight polyethylene fiber non-weft cloth layer are stacked in sequence on the bullet-facing surface and the back-bullet surface, achieving lightweight and bendability, and being soft and comfortable to wear after being matched with a bulletproof vest or a tactical vest.

[0011] The utility model is adopted to realize double protection of bulletproof and stab-proof, and is suitable for large-scale popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0013] Attached Figure 2 It is a schematic diagram of the structure of the ultra-high molecular weight polyethylene fiber non-weft cloth of the utility model. DETAILED DESCRIPTION

[0014] As attached Figure 1-2 As shown, the utility model comprises an aramid dipped woven fabric layer 1 and an ultra-high molecular weight polyethylene fiber non-weft fabric layer 2 which are arranged in sequence from the front-resilient surface to the back-resilient surface; the ultra-high molecular weight polyethylene fiber non-weft fabric in the ultra-high molecular weight polyethylene fiber non-weft fabric layer 2 has a weft of 0° and a warp of 45°; the aramid dipped woven fabric has a weft of 0° and a warp of 90°, and is formed by woven with glue-modified phenolic resin.

[0015] The utility model comprises an aramid dipped woven fabric layer 1 which is composed of 2-5 layers of aramid dipped woven fabric arranged in sequence, preferably 2 layers; an ultra-high molecular weight polyethylene fiber non-weft fabric layer 2 which is composed of 30-50 layers of ultra-high molecular weight polyethylene fiber non-weft fabric arranged in sequence, preferably 40 layers.

[0016] In order to protect the performance and service life of the bulletproof and stab-proof layer of the utility model and prevent aging, the bulletproof and stab-proof layer is placed in a protective cover with waterproof and UV protection functions (using waterproof polyester-silk composite cloth), so that the stability of the equipment is greatly improved; the utility model is matched with a bulletproof vest or a tactical vest, which is convenient to load and unload, and is close-fitting and stable to wear without shaking. It has no obvious effect on tactical actions such as rifle shooting, meets the requirements of the protection position of the core parts of the human body such as the heart and lungs, and has the functions of preventing explosion fragments, pistol lead core bullets and stabs; the overall flexibility, lightness and bendability.

[0017] The flexible, lightweight, soft, bulletproof and stab-proof layer realized by the utility model can meet the following bulletproof and stab-proof technical indicators after being treated at room temperature, high temperature (55°C ± 2°C), low temperature (-40°C ± 2°C), immersion in water (0.5 meters, 30 minutes), and wet heat aging conditions (70°C ± 2°C, relative humidity 80%, 240 hours):

[0018] 1. The V50 value of the 1.1g standard simulated fragment is not less than 710 meters per second;

[0019] 2. At a distance of 5 meters, the 79-type 7.62mm light submachine gun fires the 51-type 7.62mm pistol bullet (lead core), the initial velocity of the projectile is 515m / s ± 10m / s, it does not penetrate, and the depth of the bullet impact dent is not more than 25mm,

[0020] 3. In terms of stab-proof performance: It meets the stab-proof performance requirements of Class A stab-proof clothing in GA 68-2019 "Police Anti-stab Clothing". The utility model was punctured with a D1 knife and a test body with an impact energy of 24 joules ± 0.5 joules, and no penetration occurred in the utility model.

[0021] The utility model adopts 45-degree oblique cross and 0-degree orthogonal cross. The cross-arranged fibers comprehensively enhance the fiber's resistance to bullet and knife penetration from all angles, ensuring the ability of bullet or fragment resistance, resistance to dent deformation, and resistance to stab and penetration; the surface density is not more than 8.1 kg / m2, achieving lightweight and bendability, and being soft and comfortable to wear after being matched with a bulletproof vest or tactical vest; the dual protection of bulletproof and stab-proof improves the comfort of the wearer and the standardization of tactical actions.

[0022] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flexible, lightweight, soft, bulletproof and stab-proof layer, characterized in that: It comprises an aramid dipped woven fabric layer (1) and an ultra-high molecular weight polyethylene fiber non-woven fabric layer (2) stacked in sequence from the front-end surface to the back-end surface; The weft yarn of the ultra-high molecular weight polyethylene fiber non-weft cloth in the ultra-high molecular weight polyethylene fiber non-weft cloth layer (2) is 0 degrees, and the warp yarn is 45 degrees.

2. A flexible, lightweight, soft, bulletproof and stab-proof layer according to claim 1, characterized in that: The aramid dipped woven fabric layer (1) is composed of 2 to 5 layers of aramid dipped woven fabrics stacked in sequence.

3. A flexible, lightweight, soft, bulletproof and stab-proof layer according to claim 2, characterized in that: The aramid rubber-impregnated woven fabric layer (1) comprises two layers; the aramid rubber-impregnated woven fabric is woven with a weft of 0° and a warp of 90° and then subjected to adhesive-pressing and modified phenolic resin.

4. The flexible, lightweight, soft, bulletproof and stab-proof layer according to claim 1, characterized in that: The ultra-high molecular weight polyethylene fiber non-woven fabric layer (2) is composed of 30 to 50 layers of ultra-high molecular weight polyethylene fiber non-woven fabric stacked in sequence.

5. A flexible, lightweight, soft, bulletproof and stab-proof layer according to claim 4, characterized in that: The ultra-high molecular weight polyethylene fiber non-woven fabric layer (2) is composed of 40 layers of ultra-high molecular weight polyethylene fiber non-woven fabric stacked in sequence.

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