Waterproof para-aramid ballistic cloth of a multilayer composite structure

Abstract

The utility model relates to the soft quality protection layer field especially waterproof alignment aramid bulletproof cloth of multilayer composite structure, include: vertical alignment aramid fiber, the inside of vertical alignment aramid fiber is provided with horizontal alignment aramid fiber, ultrahigh molecular weight polyethylene fiber cloth is arranged in the outside of vertical alignment aramid fiber, horizontal alignment aramid fiber. Form one alignment aramid fiber cloth through vertical alignment aramid fiber and horizontal alignment aramid fiber, and the specific strength of vertical alignment aramid fiber and horizontal alignment aramid fiber is as high as 5-6 times of traditional steel wire, and the specific modulus exceeds 2-3 times of steel wire, realize the lightweight design of bulletproof cloth, guarantee enough protection performance simultaneously, and the high temperature resistance of fiber is excellent, can still keep structural integrity and not decompose and melt under high temperature. No melting drop is produced when burning, and toxic gas will not be released, effectively avoid secondary injury, and the fiber structure is stable, and the service life is long.

Description

Technical Field

[0001] This utility model relates to the field of bulletproof cloth, and in particular to a multi-layer composite structure of waterproof para-aramid bulletproof cloth. Background Technology

[0002] Bulletproof fabric is a type of bulletproof textile made primarily of high-performance fibers. It provides protection by absorbing and dissipating the kinetic energy of projectiles. It mainly uses high-performance fiber materials such as aramid, ultra-high molecular weight polyethylene, or PBO fibers, which possess high strength, high temperature resistance, and excellent energy absorption capabilities. For example, non-woven fabric made of aramid fibers is lighter and has a significant energy absorption effect; ultra-high molecular weight polyethylene fibers are even lighter and more resistant to sunlight.

[0003] The core flaw of existing technology is that using only a single fiber will reduce the ballistic performance due to material deformation and corrosion. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer composite waterproof aramid bulletproof fabric, which aims to solve the problem that using only a single fiber will reduce the bulletproof performance due to material deformation and corrosion.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A multi-layer composite waterproof para-aramid bulletproof fabric includes:

[0007] Vertically aligned aramid fibers, wherein transversely aligned aramid fibers are interwoven inside the vertically aligned aramid fibers;

[0008] Ultra-high molecular weight polyethylene fiber cloth is placed on the outside of the vertical para-aramid fibers and the transverse para-aramid fibers.

[0009] This utility model also has the following technical features:

[0010] In one embodiment of this utility model, the vertical para-aramid fibers and the transverse para-aramid fibers are arranged in a cross shape.

[0011] In one embodiment of this utility model, the interior of the ultra-high molecular weight polyethylene fiber cloth is provided with an internal cavity, and a bulletproof insert is placed inside the internal cavity.

[0012] In one embodiment of this utility model, the built-in cavity and the bulletproof insert are connected by a sleeve, and the bulletproof insert is rectangular.

[0013] In one embodiment of this utility model, a waterproof fabric is placed on the outside of the ultra-high molecular weight polyethylene fiber cloth, and the periphery of the waterproof fabric is provided with stitching.

[0014] In one embodiment of this utility model, the ultra-high molecular weight polyethylene fiber cloth and the waterproof cloth are bonded together.

[0015] Compared with existing technologies, the beneficial effects of this utility model are that a para-aramid fiber fabric is formed by vertical para-aramid fibers and transverse para-aramid fibers. At the same time, the specific strength of the vertical para-aramid fibers and the transverse para-aramid fibers is as high as 5-6 times that of traditional steel wire, and the specific modulus is more than 2-3 times that of steel wire. This enables the lightweight design of bulletproof fabric while ensuring sufficient protective performance. The fibers have excellent high temperature resistance and can maintain structural integrity and not decompose or melt at high temperatures. It produces no molten droplets during combustion and does not release toxic gases, effectively preventing secondary injuries. Its stable fiber structure ensures a long service life, maintaining its original performance even after prolonged use or multiple washes, reducing maintenance costs. Made of ultra-high molecular weight polyethylene (UHMWPE) fiber cloth, it features low elongation at break but high breaking energy, effectively absorbing bullet impact energy. UHMWPE fiber cloth is UV resistant, high-temperature resistant, and maintains stable performance in humid environments. The bulletproof insert dissipates bullet kinetic energy through fragmentation, and when combined with a soft vest, it prevents direct impact on the body. The waterproof fabric blocks moisture, reducing fiber aging or structural damage caused by dampness and extending the durability of the bulletproof cloth. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of a multi-layer composite waterproof para-aramid bulletproof cloth according to one embodiment of the present invention.

[0017] Figure 2 This is an exploded three-dimensional structural diagram of a multi-layer composite waterproof para-aramid bulletproof cloth according to one embodiment of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of a multi-layer composite waterproof aramid bulletproof cloth bulletproof insert plate according to one embodiment of the present invention.

[0019] Explanation of icon numbers:

[0020] 10. Vertical para-aramid fibers; 11. Transverse para-aramid fibers;

[0021] 20. Ultra-high molecular weight polyethylene fiber cloth; 21. Internal cavity; 22. Bulletproof insert;

[0022] 30. Waterproof fabric; 31. Sewing thread. Detailed Implementation

[0023] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0024] The illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] It should be noted that the core defect of the existing multi-layer composite waterproof aramid bulletproof fabric is that using only a single fiber will reduce the bulletproof performance due to material deformation and corrosion. To address this, a multi-layer composite waterproof aramid bulletproof fabric is proposed, comprising: vertical aramid fibers 10, with transverse aramid fibers 11 inserted inside the vertical aramid fibers 10; and ultra-high molecular weight polyethylene fiber cloth 20, placed on the outside of the vertical aramid fibers 10 and the transverse aramid fibers 11.

[0026] In one embodiment, the vertical para-aramid fibers 10 and the transverse para-aramid fibers 11 are arranged in a cross shape.

[0027] In one embodiment, the ultra-high molecular weight polyethylene fiber cloth 20 has an internal cavity 21, and a bulletproof insert 22 is installed inside the internal cavity 21.

[0028] In one embodiment, the built-in cavity 21 and the bulletproof insert 22 are connected by a sleeve, and the bulletproof insert 22 is rectangular.

[0029] In one embodiment of the present invention, a waterproof fabric 30 is disposed on the outer side of the ultra-high molecular weight polyethylene fiber cloth 20, and a sewing line 31 is provided around the periphery of the waterproof fabric 30.

[0030] In one embodiment, the ultra-high molecular weight polyethylene fiber cloth 20 and the waterproof cloth 30 are bonded together.

[0031] In one embodiment, see Figures 1-3A para-aramid fiber fabric is formed by vertical para-aramid fibers 10 and transverse para-aramid fibers 11. The specific strength of the vertical para-aramid fibers 10 and the transverse para-aramid fibers 11 is 5-6 times that of traditional steel wire, and the specific modulus is 2-3 times that of steel wire. This achieves a lightweight design for bulletproof fabric while ensuring sufficient protective performance. The fibers have excellent high-temperature resistance and can maintain structural integrity and not decompose or melt at high temperatures. It produces no molten droplets during combustion and does not release toxic gases, effectively preventing secondary injuries. Its stable fiber structure ensures a long service life, maintaining its original performance even after prolonged use or multiple washes, reducing maintenance costs. The UHMWPE fiber cloth 20 has a low elongation at break but high breaking energy, effectively absorbing bullet impact energy. It is also UV resistant, high-temperature resistant (maintaining structural stability even with high-temperature metal jets above 5000℃), and performs stably in humid environments. The bulletproof insert 22 dissipates bullet kinetic energy through fragmentation, and when combined with a soft vest, prevents direct impact on the body. The waterproof fabric 30 blocks moisture, reducing fiber aging or structural damage caused by dampness and extending the durability of the bulletproof cloth.

[0032] In summary, this utility model discloses a multi-layer composite waterproof para-aramid bulletproof fabric. A waterproof fabric 30, ultra-high molecular weight polyethylene fiber fabric 20, and vertical para-aramid fibers 10 and horizontal para-aramid fibers 11 are connected by stitching lines 31. The vertical and horizontal para-aramid fibers 10 and 11 form a para-aramid fiber fabric. Furthermore, the specific strength of the vertical and horizontal para-aramid fibers 10 and 11 is 5-6 times that of traditional steel wire, and their specific modulus is 2-3 times higher. This achieves a lightweight design for the bulletproof fabric while ensuring sufficient protective performance. The fibers exhibit excellent high-temperature resistance, with a continuous operating temperature up to 204℃, and maintain structural integrity without decomposition or melting even at 500℃. It produces no molten droplets during combustion and does not release toxic gases, effectively preventing secondary injuries. Its stable fiber structure ensures a long service life, maintaining its original performance even after prolonged use or multiple washes, reducing maintenance costs. The UHMWPE fiber cloth 20 has a low elongation at break but high breaking energy, effectively absorbing bullet impact energy. It is also UV resistant, high-temperature resistant (maintaining structural stability even with high-temperature metal jets above 5000℃), and performs stably in humid environments. The bulletproof insert 22 dissipates bullet kinetic energy through fragmentation, and when combined with a soft vest, prevents direct impact on the body. The waterproof fabric 30 blocks moisture, reducing fiber aging or structural damage caused by dampness and extending the durability of the bulletproof cloth.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-layer composite waterproof para-aramid bulletproof fabric, characterized in that, include: Vertically aligned aramid fiber (10), wherein transversely aligned aramid fiber (11) is inserted inside the vertically aligned aramid fiber (10); Ultra-high molecular weight polyethylene fiber cloth (20) is placed on the outside of the vertical para-aramid fiber (10) and the transverse para-aramid fiber (11).

2. The waterproof para-aramid bulletproof fabric with a multi-layer composite structure according to claim 1, characterized in that, The vertically aligned aramid fiber (10) and the transversely aligned aramid fiber (11) are arranged in a cross shape.

3. The waterproof para-aramid bulletproof fabric with a multi-layer composite structure according to claim 1, characterized in that, The ultra-high molecular weight polyethylene fiber cloth (20) has an internal cavity (21) and a bulletproof insert (22) is installed inside the internal cavity (21).

4. The waterproof para-aramid bulletproof fabric with a multi-layer composite structure according to claim 3, characterized in that, The built-in cavity (21) and the bulletproof insert (22) are connected by a sleeve, and the bulletproof insert (22) is rectangular.

5. The waterproof para-aramid bulletproof fabric with a multi-layer composite structure according to claim 1, characterized in that, A waterproof fabric (30) is placed on the outside of the ultra-high molecular weight polyethylene fiber cloth (20), and a sewing line (31) is provided around the perimeter of the waterproof fabric (30).

6. The waterproof para-aramid bulletproof fabric with a multi-layer composite structure according to claim 1, characterized in that, The ultra-high molecular weight polyethylene fiber cloth (20) and the waterproof cloth (30) are bonded together.

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