Lightweight bulletproof and stab-resistant material and manufacturing method thereof

Abstract

The invention discloses a lightweight bulletproof and stab-resistant material and a manufacturing method thereof.The lightweight bulletproof and stab-resistant material comprises a vest, the vest comprises a surface layer, an anti-cutting layer, a stab-resistant layer, a first bulletproof layer, a second bulletproof layer and an inner layer, the surface layer is bonded with the anti-cutting layer, the anti-cutting layer is bonded with the stab-resistant layer, the stab-resistant layer is bonded with the first bulletproof layer, and the inner layer is bonded with the second bulletproof layer. The first bulletproof layer is adhered to the second bulletproof layer, the second bulletproof layer is adhered to the inner layer, the anti-cutting layer is ultra-high-strength ultra-high-density polyethylene chopped yarn, and the second bulletproof layer is formed by hot-pressing and compounding Kevlar fibers, aramid fibers, ultra-high molecular weight polyethylene fibers and polyester fibers. The Kevlar fibers and various high-density fibers are alternately used, the Kevlar fibers are bulletproof main fibers, and other high-density fibers are used for blocking bullets with part of energy consumed by the Kevlar fibers, so that the service life of the body armor is prolonged, and a wearer can be prevented from being internally injured.

Description

Technical Field

[0001] The present invention relates to the technical field of bulletproof and stab-proof materials, and in particular to a lightweight bulletproof and stab-proof material and a manufacturing method thereof. Background Art

[0002] The development and manufacture of protective clothing cannot be separated from the progress of various types of weapons and equipment. The materials of bulletproof vests were originally hard bulletproof materials made of special steel, aluminum alloy and other metals. This type of bulletproof vest has certain bulletproof performance, but the clothing is heavy, uncomfortable to wear, restricts human activities, and easily produces secondary fragments. In order to improve the wearing comfort of bulletproof vests, soft bulletproof materials have emerged. Soft bulletproof materials are light in weight, soft in texture, good in fit, and have good concealment when worn inside.

[0003] In terms of bulletproof capability, existing soft bulletproof materials can generally resist bullets fired from pistols and submachine guns at a distance of 5 meters. However, the back convex depth is large, the bulletproof performance needs to be improved, it is easy to cause internal injuries to the wearer, and it has no stab-proof effect. Therefore, the present invention proposes a lightweight bulletproof and stab-proof material and a manufacturing method thereof to solve the above problems. Summary of the invention

[0004] Based on the background technology, there are technical problems that soft bulletproof materials can generally resist bullets fired from pistols and submachine guns more than 5 meters away, but the back convex depth is large, the bulletproof performance needs to be improved, it is easy to cause internal injuries to the wearer, and it has no stab-proof effect. The present invention proposes a lightweight bulletproof and stab-proof material and a manufacturing method thereof.

[0005] The present invention provides a lightweight bulletproof and stab-proof material, comprising a vest, wherein the vest comprises a surface layer, a cut-proof layer, a stab-proof layer, a first bullet-proof layer, a second bullet-proof layer and an inner layer, wherein the surface layer is bonded to the cut-proof layer, the cut-proof layer is bonded to the stab-proof layer, the stab-proof layer is bonded to the first bullet-proof layer, the first bullet-proof layer is bonded to the second bullet-proof layer, and the second bullet-proof layer is bonded to the inner layer.

[0006] Preferably, the cutting layer is ultra-high strength and ultra-high density polyethylene chopped yarn, and the stab-proof layer is aramid chopped yarn.

[0007] Preferably, the first bulletproof layer is a ceramic alloy plate, and the second bulletproof layer is a hot-pressed composite of Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber. Ceramic alloy is a new composite material that has both the high temperature resistance and corrosion resistance of ceramics and the ductility and toughness of metals. The ceramic alloy is composed of silicon carbide wires, and the gaps between the silicon carbide wires are also filled with silicon, so that this material has certain toughness and bending properties, and can be ductile at high temperatures like metals. This composite material of silicon carbide can be cast into various components, and these components hardly shrink during the condensation process, so they can be formed in one time without paying the high cost of general ceramic processing. The tensile strength of Kevlar fiber is 4 times that of general organic fiber, and its modulus is 9 times that of polyester. Since the specific gravity of Kevlar brand fiber is small, its specific strength is higher than that of glass fiber, carbon fiber and boron fiber, but its compression strength and shear strength are lower, and its water absorption is higher.

[0008] Preferably, the specific material of the surface layer is waterproof cloth, and the specific material of the inner layer is cotton.

[0009] Preferably, Velcro strips arranged in a matrix are fixedly mounted on the left and right sides of the vest, and the number of the Velcro strips is four.

[0010] The following steps are involved:

[0011] S1: Material preparation;

[0012] S2: preparation of the second bulletproof layer;

[0013] S3: Vest preparation.

[0014] Preferably, in the step S1, a waterproof fabric, ultra-high strength and ultra-high density polyethylene chopped yarn, aramid chopped yarn, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, polyester fiber and cotton fabric are prepared, wherein the Kevlar fiber is 10-15 layers, the aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber are 3-12 layers each, and the surface density of the Kevlar fiber is 250-350g / m 2 , the surface density of aramid fiber is 180-220g / m 2 The surface density of ultra-high molecular weight polyethylene fiber is 150-190g / m 2 , the surface density of polyester fiber is 150-200g / m 2 .

[0015] Preferably, in the step S2, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber are arranged alternately and hot-pressed to form a composite. The aramid fiber and ultra-high molecular weight polyethylene fiber can be hot-pressed alternately with the polyester fiber and Kevlar, or the aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber can be hot-pressed alternately with Kevlar.

[0016] Preferably, in step S3, the surface layer is bonded to the cut-proof layer by glue, the cut-proof layer is bonded to the stab-proof layer by glue, the stab-proof layer is bonded to the first bullet-proof layer by glue, the first bullet-proof layer is bonded to the second bullet-proof layer by glue, and the second bullet-proof layer is bonded to the inner layer by glue, and then the vest is made.

[0017] Beneficial effects of the present invention:

[0018] 1. The outer layer of the vest is made of ultra-high-strength ultra-high-density polyethylene chopped yarn and aramid chopped yarn, which makes the vest have cutting and puncture-proof functions to further protect the wearer;

[0019] The present invention alternately uses Kevlar fiber and various high-density fibers, wherein Kevlar fiber is the main bulletproof fiber and other high-density fibers are used to block bullets whose energy has been partially consumed by the Kevlar fiber, thereby increasing the service life of the bulletproof vest and preventing the wearer from internal injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram proposed for the present invention;

[0021] Figure 2 A cross-sectional view of the present invention;

[0022] Figure 3 The working flow chart proposed by the present invention.

[0023] In the figure: 1. vest; 2. surface layer; 3. cut-proof layer; 4. stab-proof layer; 5. first-party single layer; 6. second-party single layer; 7. inner layer; 8. Velcro. DETAILED DESCRIPTION

[0024] The present invention will be further explained below in conjunction with specific embodiments.

[0025] Reference Figure 1-3 , Embodiment 1

[0026] In the present embodiment, a lightweight bulletproof and stab-proof material is proposed, including a vest, the vest includes a surface layer, a cut-proof layer, a stab-proof layer, a first bullet-proof layer, a second bullet-proof layer and an inner layer, the surface layer is bonded to the cut-proof layer, the cut-proof layer is bonded to the stab-proof layer, the stab-proof layer is bonded to the first bullet-proof layer, the first bullet-proof layer is bonded to the second bullet-proof layer, and the second bullet-proof layer is bonded to the inner layer. The cut-proof layer is ultra-high-strength and ultra-high-density polyethylene chopped yarn, the stab-proof layer is aramid chopped yarn, the first bullet-proof layer is a ceramic alloy plate, and the second bullet-proof layer is a hot-pressed composite of Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber. The ceramic alloy is a new composite material that has both the high temperature resistance and corrosion resistance of ceramics and the ductility and toughness of metals. The ceramic alloy is composed of silicon carbide wires, and the gaps between the silicon carbide wires are also filled with silicon carbide wires. Filled with silicon, this material has a certain toughness and bending properties, and can be ductile at high temperatures like metal. This composite material of silicon carbide can be cast into various parts. These parts hardly shrink during the condensation process and can be formed in one go without the high cost of general ceramic processing. The tensile strength of Kevlar fiber is 4 times that of ordinary organic fibers, and its modulus is 9 times that of polyester. Due to the small specific gravity of Kevlar brand fiber, its specific strength is higher than that of glass fiber, carbon fiber and boron fiber, but its compression strength and shear strength are lower, and its water absorption is higher. The specific material of the surface layer is waterproof cloth, and the specific material of the inner layer is cotton. The left and right sides of the vest are fixed with Velcro arranged in a matrix, and the number of Velcro is four.

[0027] The following steps are involved:

[0028] S1: Material preparation: waterproof fabric, ultra-high strength and ultra-high density polyethylene chopped yarn, aramid chopped yarn, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, polyester fiber and cotton fabric, of which Kevlar fiber has 10 layers, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber have 3 layers each, and the surface density of Kevlar fiber is 250g / m 2 , the surface density of aramid fiber is 180g / m 2 The surface density of ultra-high molecular weight polyethylene fiber is 150g / m 2 , the surface density of polyester fiber is 150g / m 2 ;

[0029] S2: Preparation of the second bulletproof layer, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber are arranged alternately and hot-pressed to form a composite, and aramid fiber and ultra-high molecular weight polyethylene fiber can be hot-pressed alternately with polyester fiber and Kevlar, or aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber can be hot-pressed alternately with Kevlar;

[0030] S3: vest preparation, the surface layer is bonded to the anti-cut layer by glue, the anti-cut layer is bonded to the anti-stab layer by glue, the anti-stab layer is bonded to the first bulletproof layer by glue, the first bulletproof layer is bonded to the second bulletproof layer by glue, the second bulletproof layer is bonded to the inner layer by glue, and then the vest is made.

[0031] Reference Figure 1-3 , Embodiment 2

[0032] In the present embodiment, a lightweight bulletproof and stab-proof material is proposed, including a vest, the vest includes a surface layer, a cut-proof layer, a stab-proof layer, a first bullet-proof layer, a second bullet-proof layer and an inner layer, the surface layer is bonded to the cut-proof layer, the cut-proof layer is bonded to the stab-proof layer, the stab-proof layer is bonded to the first bullet-proof layer, the first bullet-proof layer is bonded to the second bullet-proof layer, and the second bullet-proof layer is bonded to the inner layer. The cut-proof layer is ultra-high-strength and ultra-high-density polyethylene chopped yarn, the stab-proof layer is aramid chopped yarn, the first bullet-proof layer is a ceramic alloy plate, and the second bullet-proof layer is a hot-pressed composite of Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber. The ceramic alloy is a new composite material that has both the high temperature resistance and corrosion resistance of ceramics and the ductility and toughness of metals. The ceramic alloy is composed of silicon carbide wires, and the gaps between the silicon carbide wires are also filled with silicon carbide wires. Filled with silicon, this material has a certain toughness and bending properties, and can be ductile at high temperatures like metal. This composite material of silicon carbide can be cast into various parts. These parts hardly shrink during the condensation process and can be formed in one go without the high cost of general ceramic processing. The tensile strength of Kevlar fiber is 4 times that of ordinary organic fibers, and its modulus is 9 times that of polyester. Due to the small specific gravity of Kevlar brand fiber, its specific strength is higher than that of glass fiber, carbon fiber and boron fiber, but its compression strength and shear strength are lower, and its water absorption is higher. The specific material of the surface layer is waterproof cloth, and the specific material of the inner layer is cotton. The left and right sides of the vest are fixed with Velcro arranged in a matrix, and the number of Velcro is four.

[0033] The following steps are involved:

[0034] S1: Material preparation: waterproof fabric, ultra-high strength and ultra-high density polyethylene chopped yarn, aramid chopped yarn, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, polyester fiber and cotton fabric, of which Kevlar fiber has 13 layers, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber have 10 layers each, and the surface density of Kevlar fiber is 260g / m 2 , the surface density of aramid fiber is 210g / m 2 The surface density of ultra-high molecular weight polyethylene fiber is 158g / m 2 , the surface density of polyester fiber is 170g / m 2 ;

[0035] S2: Preparation of the second bulletproof layer, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber are arranged alternately and hot-pressed to form a composite, and aramid fiber and ultra-high molecular weight polyethylene fiber can be hot-pressed alternately with polyester fiber and Kevlar, or aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber can be hot-pressed alternately with Kevlar;

[0036] S3: vest preparation, the surface layer is bonded to the anti-cut layer by glue, the anti-cut layer is bonded to the anti-stab layer by glue, the anti-stab layer is bonded to the first bulletproof layer by glue, the first bulletproof layer is bonded to the second bulletproof layer by glue, the second bulletproof layer is bonded to the inner layer by glue, and then the vest is made.

[0037] Reference Figure 1-3 , Embodiment 3

[0038] In the present embodiment, a lightweight bulletproof and stab-proof material is proposed, including a vest, the vest includes a surface layer, a cut-proof layer, a stab-proof layer, a first bullet-proof layer, a second bullet-proof layer and an inner layer, the surface layer is bonded to the cut-proof layer, the cut-proof layer is bonded to the stab-proof layer, the stab-proof layer is bonded to the first bullet-proof layer, the first bullet-proof layer is bonded to the second bullet-proof layer, and the second bullet-proof layer is bonded to the inner layer. The cut-proof layer is ultra-high-strength and ultra-high-density polyethylene chopped yarn, the stab-proof layer is aramid chopped yarn, the first bullet-proof layer is a ceramic alloy plate, and the second bullet-proof layer is a hot-pressed composite of Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber. The ceramic alloy is a new composite material that has both the high temperature resistance and corrosion resistance of ceramics and the ductility and toughness of metals. The ceramic alloy is composed of silicon carbide wires, and the gaps between the silicon carbide wires are also filled with silicon carbide wires. Filled with silicon, this material has a certain toughness and bending properties, and can be ductile at high temperatures like metal. This composite material of silicon carbide can be cast into various parts. These parts hardly shrink during the condensation process and can be formed in one go without the high cost of general ceramic processing. The tensile strength of Kevlar fiber is 4 times that of ordinary organic fibers, and its modulus is 9 times that of polyester. Due to the small specific gravity of Kevlar brand fiber, its specific strength is higher than that of glass fiber, carbon fiber and boron fiber, but its compression strength and shear strength are lower, and its water absorption is higher. The specific material of the surface layer is waterproof cloth, and the specific material of the inner layer is cotton. The left and right sides of the vest are fixed with Velcro arranged in a matrix, and the number of Velcro is four.

[0039] The following steps are involved:

[0040] S1: Material preparation: waterproof fabric, ultra-high strength and ultra-high density polyethylene chopped yarn, aramid chopped yarn, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, polyester fiber and cotton fabric, of which Kevlar fiber has 13 layers, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber have 9 layers each, and the surface density of Kevlar fiber is 290g / m2 , the surface density of aramid fiber is 210g / m 2 The surface density of ultra-high molecular weight polyethylene fiber is 170g / m 2 , the surface density of polyester fiber is 170g / m 2 ;

[0041] S2: Preparation of the second bulletproof layer, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber are arranged alternately and hot-pressed to form a composite, and aramid fiber and ultra-high molecular weight polyethylene fiber can be hot-pressed alternately with polyester fiber and Kevlar, or aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber can be hot-pressed alternately with Kevlar;

[0042] S3: vest preparation, the surface layer is bonded to the anti-cut layer by glue, the anti-cut layer is bonded to the anti-stab layer by glue, the anti-stab layer is bonded to the first bulletproof layer by glue, the first bulletproof layer is bonded to the second bulletproof layer by glue, the second bulletproof layer is bonded to the inner layer by glue, and then the vest is made.

[0043] Reference Figure 1-3 , Embodiment 4

[0044] In the present embodiment, a lightweight bulletproof and stab-proof material is proposed, including a vest, the vest includes a surface layer, a cut-proof layer, a stab-proof layer, a first bullet-proof layer, a second bullet-proof layer and an inner layer, the surface layer is bonded to the cut-proof layer, the cut-proof layer is bonded to the stab-proof layer, the stab-proof layer is bonded to the first bullet-proof layer, the first bullet-proof layer is bonded to the second bullet-proof layer, and the second bullet-proof layer is bonded to the inner layer. The cut-proof layer is ultra-high-strength and ultra-high-density polyethylene chopped yarn, the stab-proof layer is aramid chopped yarn, the first bullet-proof layer is a ceramic alloy plate, and the second bullet-proof layer is a hot-pressed composite of Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber. The ceramic alloy is a new composite material that has both the high temperature resistance and corrosion resistance of ceramics and the ductility and toughness of metals. The ceramic alloy is composed of silicon carbide wires, and the gaps between the silicon carbide wires are also filled with silicon carbide wires. Filled with silicon, this material has a certain toughness and bending properties, and can be ductile at high temperatures like metal. This composite material of silicon carbide can be cast into various parts. These parts hardly shrink during the condensation process and can be formed in one go without the high cost of general ceramic processing. The tensile strength of Kevlar fiber is 4 times that of ordinary organic fibers, and its modulus is 9 times that of polyester. Due to the small specific gravity of Kevlar brand fiber, its specific strength is higher than that of glass fiber, carbon fiber and boron fiber, but its compression strength and shear strength are lower, and its water absorption is higher. The specific material of the surface layer is waterproof cloth, and the specific material of the inner layer is cotton. The left and right sides of the vest are fixed with Velcro arranged in a matrix, and the number of Velcro is four.

[0045] The following steps are involved:

[0046] S1: Material preparation: waterproof fabric, ultra-high strength and ultra-high density polyethylene chopped yarn, aramid chopped yarn, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, polyester fiber and cotton fabric, of which Kevlar fiber has 14 layers, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber have 8 layers each, and the surface density of Kevlar fiber is 300g / m 2 , the surface density of aramid fiber is 220g / m 2 The surface density of ultra-high molecular weight polyethylene fiber is 180g / m 2 , the surface density of polyester fiber is 180g / m 2 ;

[0047] S2: Preparation of the second bulletproof layer, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber are arranged alternately and hot-pressed to form a composite, and aramid fiber and ultra-high molecular weight polyethylene fiber can be hot-pressed alternately with polyester fiber and Kevlar, or aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber can be hot-pressed alternately with Kevlar;

[0048] S3: vest preparation, the surface layer is bonded to the anti-cut layer by glue, the anti-cut layer is bonded to the anti-stab layer by glue, the anti-stab layer is bonded to the first bulletproof layer by glue, the first bulletproof layer is bonded to the second bulletproof layer by glue, the second bulletproof layer is bonded to the inner layer by glue, and then the vest is made.

[0049] Reference Figure 1-3 Embodiment 5

[0050] In the present embodiment, a lightweight bulletproof and stab-proof material is proposed, including a vest, the vest includes a surface layer, a cut-proof layer, a stab-proof layer, a first bullet-proof layer, a second bullet-proof layer and an inner layer, the surface layer is bonded to the cut-proof layer, the cut-proof layer is bonded to the stab-proof layer, the stab-proof layer is bonded to the first bullet-proof layer, the first bullet-proof layer is bonded to the second bullet-proof layer, and the second bullet-proof layer is bonded to the inner layer. The cut-proof layer is ultra-high-strength and ultra-high-density polyethylene chopped yarn, the stab-proof layer is aramid chopped yarn, the first bullet-proof layer is a ceramic alloy plate, and the second bullet-proof layer is a hot-pressed composite of Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber. The ceramic alloy is a new composite material that has both the high temperature resistance and corrosion resistance of ceramics and the ductility and toughness of metals. The ceramic alloy is composed of silicon carbide wires, and the gaps between the silicon carbide wires are also filled with silicon carbide wires. Filled with silicon, this material has a certain toughness and bending properties, and can be ductile at high temperatures like metal. This composite material of silicon carbide can be cast into various parts. These parts hardly shrink during the condensation process and can be formed in one go without the high cost of general ceramic processing. The tensile strength of Kevlar fiber is 4 times that of ordinary organic fibers, and its modulus is 9 times that of polyester. Due to the small specific gravity of Kevlar brand fiber, its specific strength is higher than that of glass fiber, carbon fiber and boron fiber, but its compression strength and shear strength are lower, and its water absorption is higher. The specific material of the surface layer is waterproof cloth, and the specific material of the inner layer is cotton. The left and right sides of the vest are fixed with Velcro arranged in a matrix, and the number of Velcro is four.

[0051] The following steps are involved:

[0052] S1: Material preparation: waterproof fabric, ultra-high strength and ultra-high density polyethylene chopped yarn, aramid chopped yarn, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, polyester fiber and cotton fabric, of which Kevlar fiber has 15 layers, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber have 12 layers each, and the surface density of Kevlar fiber is 350g / m 2 , the surface density of aramid fiber is 220g / m 2 The surface density of ultra-high molecular weight polyethylene fiber is 190g / m 2 , the surface density of polyester fiber is 200g / m 2 ;

[0053] S2: Preparation of the second bulletproof layer, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber are arranged alternately and hot-pressed to form a composite, and aramid fiber and ultra-high molecular weight polyethylene fiber can be hot-pressed alternately with polyester fiber and Kevlar, or aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber can be hot-pressed alternately with Kevlar;

[0054] S3: vest preparation, the surface layer is bonded to the anti-cut layer by glue, the anti-cut layer is bonded to the anti-stab layer by glue, the anti-stab layer is bonded to the first bulletproof layer by glue, the first bulletproof layer is bonded to the second bulletproof layer by glue, the second bulletproof layer is bonded to the inner layer by glue, and then the vest is made.

[0055] Comparing the conventional bulletproof and stab-proof materials with the bulletproof and stab-proof materials prepared in Examples 1 to 5, the bulletproof and stab-proof materials prepared in Examples 1 to 5 are shown in the following table:

[0056]

[0057] It can be seen from the above table that the lightweight bullet-proof and stab-proof material and the manufacturing method thereof proposed by the present invention have obvious improvements, and the second embodiment is the best embodiment.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lightweight bulletproof and stab-proof material, including a vest, characterized in that: The vest comprises a surface layer, a cut-proof layer, a stab-proof layer, a first bullet-proof layer, a second bullet-proof layer and an inner layer, the surface layer is bonded to the cut-proof layer, the cut-proof layer is bonded to the stab-proof layer, the stab-proof layer is bonded to the first bullet-proof layer, the first bullet-proof layer is bonded to the second bullet-proof layer, and the second bullet-proof layer is bonded to the inner layer.

2. A lightweight bulletproof and stab-proof material according to claim 1, characterized in that: The cutting layer is ultra-high strength and ultra-high density polyethylene chopped yarn, and the stab-proof layer is aramid chopped yarn.

3. The lightweight bulletproof and stab-proof material according to claim 1, characterized in that: The first bulletproof layer is a ceramic alloy plate, and the second bulletproof layer is formed by hot-pressing a composite of Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber.

4. The lightweight bulletproof and stab-proof material according to claim 1, characterized in that: The specific material of the surface layer is waterproof cloth, and the specific material of the inner layer is cotton.

5. The lightweight bulletproof and stab-proof material according to claim 1, characterized in that: Velcro strips arranged in a matrix are fixedly installed on the left and right sides of the vest, and the number of the Velcro strips is four.

6. The method for manufacturing a lightweight bulletproof and stab-proof material according to claim 1, characterized in that: The following steps are involved: S1: Material preparation; S2: preparation of the second bulletproof layer; S3: Vest preparation.

7. The method for manufacturing a lightweight bulletproof and stab-proof material according to claim 6, characterized in that: In the step S1, a waterproof fabric, ultra-high strength and ultra-high density polyethylene chopped yarn, aramid chopped yarn, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, polyester fiber and cotton fabric are prepared, wherein the Kevlar fiber is 10-15 layers, the aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber are 3-12 layers each, and the surface density of the Kevlar fiber is 250-350g / m 2 , the surface density of aramid fiber is 180-220g / m 2 The surface density of ultra-high molecular weight polyethylene fiber is 150-190g / m 2 , the surface density of polyester fiber is 150-200g / m 2 .

8. The method for manufacturing a lightweight bulletproof and stab-proof material according to claim 6, characterized in that: In the step S2, Kevlar fiber, aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber are arranged alternately and hot-pressed to form a composite. Aramid fiber and ultra-high molecular weight polyethylene fiber can be hot-pressed alternately with polyester fiber and Kevlar, or aramid fiber, ultra-high molecular weight polyethylene fiber and polyester fiber can be hot-pressed alternately with Kevlar.

9. The method for manufacturing a lightweight bulletproof and stab-proof material according to claim 6, characterized in that: In the step S3, the surface layer is bonded to the cut-proof layer by glue, the cut-proof layer is bonded to the stab-proof layer by glue, the stab-proof layer is bonded to the first bullet-proof layer by glue, the first bullet-proof layer is bonded to the second bullet-proof layer by glue, and the second bullet-proof layer is bonded to the inner layer by glue, and then the vest is made.

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