KR20200137218A - Bulletproof-stabproof fabic based on thermoplastic polymer, manufacturing method therefo and bulletproof-stabproof fabic manufactured by the method - Google Patents

Abstract

The present invention relates to a thermoplastic polymer-based bulletproof/stab-proof textile to provide excellent bulletproof/stab-proof properties while being a lightweight textile, a manufacturing method thereof, and a bulletproof/stab-proof textile manufactured thereby. According to the present invention, the bulletproof/stab-proof textile comprises a fabric base layer and a thermoplastic polymer layer formed on one or both surfaces of the fabric base layer, wherein the fabric base layer is formed of at least one of a carbon fiber fabric and a carbon-aramid hybrid fiber fabric. Moreover, the manufacturing method comprises a textile material preparation step of preparing a thermoplastic polymer and fabric to be integrated with the thermoplastic polymer and a textile forming step of laminating the thermoplastic polymer on one or both surfaces of the prepared fabric to form textile, wherein the fabric prepared in the textile material preparation step is formed of at least one of a carbon fiber fabric and a carbon-aramid hybrid fiber fabric.

Description

TECHNICAL FIELD {BULLETPROOF-STABPROOF FABIC BASED ON THERMOPLASTIC POLYMER, MANUFACTURING METHOD THEREFO AND BULLETPROOF-STABPROOF FABIC MANUFACTURED BY THE METHOD}

The present invention relates to a bulletproof bulletproof fabric, a method of manufacturing the same, and a bulletproof bulletproof fabric manufactured thereby, and more particularly, a bulletproof based on a thermoplastic polymer capable of securing both excellent ballistic and ballistic properties while being a relatively lightweight fabric. It relates to a bulletproof bulletproof fabric, a manufacturing method thereof, and a bulletproof bulletproof fabric manufactured thereby.

This 　invention is the result of a research carried out as a technology development project linked to overseas demands supported by the Small and Medium Business Technology Information Promotion Agency (Project number: S2488357, Research title: Bulletproof Level ⅢA for counter-terrorism operations and development of bulletproof armor suits capable of combined protection for combat detection Level 1 )

As commonly known, bulletproof clothing is a kind of clothing developed to protect the human body from fragments or bullets of shells, and one of the most important requirements that bulletproof clothing must have is bulletproof performance.

In addition, the swordsman uniform is a type of clothing (including swordsight clothing and gloves) for effectively protecting the body from the impact of sharp objects such as swords and awls.

The fabric for manufacturing such body armor and anti-sword clothing is mainly composed of polymer raw materials in the form of fibers to form a woven fabric, and then a thin polyester film is attached to the upper and lower surfaces of the woven fabric to form a fabric member. , By layering the fabric member in multiple layers to prepare a bulletproof or anti-ballistic fabric.

Material materials for manufacturing such fabrics, aramid fibers, glass fibers, nylon, etc. are typically used.Since at least 30 layers of materials are stacked to have ballistic and anti-ballistic properties, the thickness of the fabric is increased. There was a problem that the manufacturing process of the used product became complicated.

In addition, the product itself is heavy due to the thicker thickness of the product, and its wearability and activity are not good due to its stiff texture.It secures the functions of both ballistic and anti-barrier properties, and has a reduction in Back Force Defomation (BFD). There is a problem with limitations in manufacturing the fabric.

Accordingly, development of a fabric that satisfies both bulletproof and anti-ballistic properties, is relatively lightweight and has excellent activity is required.

(Document 1) Korean Patent Publication No. 10-1569558 (announced on November 27, 2015) (Document 2) Republic of Korea Patent Publication 10-1385003 (2014.04.14. Announcement) (Document 3) Republic of Korea Patent Publication 10-1421328 (announced on July 30, 2014) (Document 4) Korean Registered Patent Publication 10-0845923 (announced on July 11, 2008)

Accordingly, the present invention for solving the above-described conventional problems is a thermoplastic polymer-based bulletproof bulletproof fabric capable of securing both excellent ballistic and ballistic resistance while being a relatively lightweight fabric, a method of manufacturing the same, and a bulletproof fabric manufactured thereby. Its purpose is to provide anti-sword fabrics.

The problem of the present invention is not limited to those mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to a first aspect of the present invention for achieving the objects and other features of the present invention, the fabric base layer; And a thermoplastic polymer layer formed on one or both sides of the fabric base layer, wherein the fabric base layer is made of at least one of a carbon fiber fabric or a carbon-aramid hybrid fiber fabric. Is provided.

In the first aspect of the present invention, the thermoplastic polymer layer is made of any one selected from the group comprising a thermoplastic polypropylene polymer, a thermoplastic polybutyl terephthalate polymer, a thermoplastic polyurethane polymer, and a thermoplastic polyester polymer, The thermoplastic polymer layer may have a hot melt layer on one side.

In the first aspect of the present invention, the thermoplastic polymer layer may have a thickness of 20 μm to 200 μm.

According to a second aspect of the present invention, a fabric material preparation step of preparing a thermoplastic polymer and a fabric to be integrated with the thermoplastic polymer; And a fabric forming step of laminating and integrating a thermoplastic polymer on one or both sides of the fabric to form a fabric, wherein the fabric prepared in the fabric material preparation step is at least a carbon fiber fabric or a carbon-aramid hybrid fiber fabric There is provided a method of manufacturing a bulletproof bulletproof fabric, characterized in that consisting of one fabric.

In the second aspect of the present invention, the thermoplastic polymer prepared in the fabric material preparation step is selected from the group containing a thermoplastic polypropylene polymer, a thermoplastic polybutyl terephthalate polymer, a thermoplastic polyurethane polymer, and a thermoplastic polyester polymer. The thermoplastic polymer prepared in the step of preparing the fabric material may be prepared to have a thickness of 20 μm to 200 μm.

In a second aspect of the present invention, the thermoplastic polymer is provided with a hot melt layer on one side, and in the fabric formation step, a thermoplastic polymer formed by processing a hot melt on one side is laminated on one or both sides of the fabric. After that, it may be integrated by pressing with a high pressure press of 100t to 1,000t.

In the second aspect of the present invention, the fabric forming step is performed in a temperature range of 120° C. to 200° C., a pressure condition of 3 kgf to 10 kgf, and a pressing time of 5 minutes to 20 minutes when the fabric is compressed and integrated by the high pressure press. I can.

According to the thermoplastic polymer-based bulletproof bulletproof fabric, the manufacturing method thereof, and the bulletproof bulletproof fabric manufactured by the thermoplastic polymer according to the present invention, there is an effect of securing both excellent bulletproof and antiballistic while being a relatively lightweight fabric.

Further, according to the present invention, it is excellent in wearability and activity, and there is an effect of improving manufacturing processability.

The effects of the present invention are not limited to those mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a view showing a single-layer structure of a bulletproof bulletproof fabric based on a thermoplastic polymer according to the present invention.
Figure 2 is a flow chart showing the manufacturing process of the thermoplastic polymer-based bulletproof bulletproof fabric according to the present invention.

Additional objects, features, and advantages of the present invention may be more clearly understood from the following detailed description and accompanying drawings.

Prior to the detailed description of the present invention, the present invention is capable of various modifications and various embodiments, and the examples described below and shown in the drawings are intended to limit the present invention to specific embodiments. It should be understood as including all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

The terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance.

In addition, terms such as "... unit", "... unit", and "... module" described in the specification mean a unit that processes at least one function or operation, which is hardware, software, or hardware and It can be implemented as a combination of software.

In addition, in the description with reference to the accompanying drawings, the same reference numerals are assigned to the same components regardless of the reference numerals, and redundant descriptions thereof will be omitted. In describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

Hereinafter, a thermoplastic polymer-based bulletproof bulletproof fabric, a manufacturing method thereof, and a bulletproof bulletproof fabric manufactured thereby according to a preferred embodiment of the present invention will be described.

First, with reference to FIG. 1, the thermoplastic polymer-based bulletproof bulletproof fabric according to the present invention will be described in detail. 1 is a view showing a single-layer structure of a bulletproof bulletproof fabric based on a thermoplastic polymer according to the present invention.

The thermoplastic polymer-based bulletproof bulletproof fabric according to the present invention, as shown in Figure 1, the fabric base layer 110; And a thermoplastic polymer layer 120 formed on one or both surfaces of the fabric base layer 110.

The fabric base layer 110 may preferably be made of a carbon fiber fabric or a carbon-aramid hybrid fiber fabric.

The polyethylene-based fibers are preferably applied as manufactured by a low pressure method or a central method, and have excellent hardness and strength and heat resistance.

Next, the thermoplastic polymer layer 120 may be made of any one selected from the group consisting of a thermoplastic polypropylene polymer, a thermoplastic polybutyl terephthalate polymer, a thermoplastic polyurethane polymer, and a thermoplastic polyester polymer.

Thermoplastic polypropylene-based polymers are characterized by light weight and excellent strength.

Thermoplastic polybutyl terephthalate-based polymers are characterized by excellent strength and easy molding processing.

Thermoplastic polyurethane-based polymers are characterized by excellent impact resistance, abrasion resistance, stiffness, and heat insulation properties.

Thermoplastic polyester polymers are characterized by high strength and excellent durability.

The thermoplastic polymer layer 120 preferably has a thickness of 20 μm to 200 μm. When the thermoplastic polymer layer 120 has a thickness of less than 20 μm, there is a problem in that the ballistic resistance is inferior, and when it exceeds the thickness of 200 μm, there is a problem in that the workability is deteriorated and economical efficiency is lowered.

The thermoplastic polymer layer 120 is formed in the form of a film, a hot melt film is processed on the adhesion surface, and laminated on one or both sides of the fabric base layer 110, and then the high pressure of about 100 tons to 1,000 tons. It is compressed with a press and integrated with the fabric base layer 110 to form a bulletproof bulletproof fabric.

Here, when the fabric base layer 110 and the thermoplastic polymer layer 120 are integrated using a high pressure press, it is executed in a temperature range of 120°C to 200°C, and after initial processing, a pressure condition between 3kgf and 10kgf And 5 minutes to 20 minutes to form the optimum bullet-proof fabric.

The experimental results of Examples and Comparative Examples with respect to BFD (Back Force Defomation) and Anti-stab in relation to the above numerical range will be described below.

Next, a method of manufacturing a bulletproof bulletproof fabric based on a thermoplastic polymer according to the present invention will be described in detail with reference to FIG. 2. Figure 2 is a flow chart showing the manufacturing process of the thermoplastic polymer-based bulletproof bulletproof fabric according to the present invention.

As shown in FIG. 2, a method of manufacturing a bulletproof bulletproof fabric based on a thermoplastic polymer according to the present invention includes preparing a fabric material for preparing a thermoplastic polymer and a fabric to be integrated with the thermoplastic polymer (S110, S120); And a fabric forming step (S200) of laminating and integrating a thermoplastic polymer on one or both sides of the fabric prepared in the fabric material preparation steps S110 and S120 to form a fabric.

The fabric prepared in the fabric material preparation steps (S110, S120) is preferably a carbon fiber fabric or a carbon-aramid hybrid fiber fabric.

Carbon fiber has excellent heat resistance, impact resistance, strong chemical resistance and high resistance to pests, and carbon-aramid hybrid fiber fabric is in addition to the properties of carbon fiber, the tensile strength, toughness, heat resistance, high strength and high modulus of elasticity of aramid fiber It has the characteristics of.

Subsequently, the thermoplastic polymer prepared in the fabric material preparation steps (S110, S120) is selected from the group consisting of a thermoplastic polypropylene polymer, a thermoplastic polybutyl terephthalate polymer, a thermoplastic polyurethane polymer, and a thermoplastic polyester polymer. It is preferable to be provided with either one.

Thermoplastic polypropylene-based polymers are light in weight and excellent in strength, thermoplastic polybutyl terephthalate-based polymers have excellent strength and easy molding processing, and thermoplastic polyurethane-based polymers have excellent impact resistance, abrasion resistance, stiffness, etc., and have thermal insulation properties. Thermoplastic polyester polymers are characterized by high strength and excellent durability.

In addition, the thermoplastic polymer is made in the form of a film having a thickness of 20㎛ ~ 200㎛, is provided with a thermoplastic polymer processed to form a hot melt layer on one surface.

Here, when the thermoplastic polymer layer 120 has a thickness of less than 20 µm, there is a problem in that the bulletproof bulletproof property is inferior, and when the thickness exceeds 200 µm, there is a problem in that the workability is deteriorated and economic efficiency is deteriorated.

Next, in the fabric formation step (S200) of integrating the fabric and the thermoplastic polymer to form a fabric, a thermoplastic polymer formed by hot melt processing on one side is laminated on one or both sides of the fabric base layer, and then about 100t ~ 1,000 It consists of compacting with a high-pressure press of t to integrate.

Here, when the fabric and the thermoplastic polymer are integrated using a high-pressure press, it is performed in a temperature range of 120°C to 200°C, and a pressure condition between 3kgf and 10kgf after initial processing and a pressing time between 5 and 20 minutes It is executed in the range to form the optimal bulletproof bulletproof fabric.

Hereinafter, the inventors of the present invention have confirmed BFD (Back Force Defomation) and anti-stab through the following Examples and Comparative Examples, which will be described in detail.

Real fabric

The fabric was woven using carbon fibers as warp and weft yarns. The fabric weight was 200 g/m ² .

Example 1

A thermoplastic polyurethane having a thermoplastic resin thickness of 20 μm was attached to the fabric. In order to facilitate the adhesion between the fabric and the thermoplastic resin film during the attaching process, a fabric was manufactured with a cross section of the fabric at an integration temperature of 80°C.

Example 2

The fabric was prepared by using a thermoplastic polyurethane having a thickness of 50 μm of a thermoplastic resin in the fabric in a cross section as in the example.

Example 3

In the same manner as in Example 1, a thermoplastic polyurethane having a thickness of 20 μm of a thermoplastic resin was used in the fabric to prepare a fabric on both sides.

Example 4

The fabric was prepared by pressing the fabric at a temperature of 120° C. for about 10 minutes at a pressure of 3 kgf.

Example 5

The fabric was prepared by pressing the fabric prepared in Example 2 at a temperature of 120° C. for about 10 minutes at a pressure of 3 kgf.

Example 6

The fabric was prepared by pressing the fabric prepared in Example 3 at a temperature of 120° C. for about 10 minutes at a pressure of 3 kgf.

Example 7

A fabric was prepared by pressing a thermoplastic polyurethane having a thickness of 50 μm of a thermoplastic resin on the fabric at a temperature of 120° C. for about 10 minutes at a pressure of 3 kgf.

Comparative Example 1

It is made into the fabric of the fabric, which does not contain thermoplastic resin and does not contain pressure.

BFD (Back Force Defomation) and Anti-stab of the fabrics each manufactured according to the above Examples and Comparative Examples were measured by the following method.

BFD measurement

Based on the NIJ Std 0101.06 Level IIIA regulation, the rear deformation (BFD: Back Force Defomation) of the fabric was measured using 44 Mag (Speer) bullets. The measured results are shown in Table 1 below.

Anti-Stab measurement

Based on the NIJ Std 0115.00 Level 1 regulation, the double-edged (S1), the blade (P1), and the spike were used to measure the check performance of the fabric. The measured results are shown in Table 1 below.

BFD
(Max/min)(mm) Anti-Stab S1 P1 Spike Example 1 43/43 4 5 7 Example 2 41/40 3 3 7 Example 3 42/41 3 3 7 Example 4 42/40 3 3 7 Example 5 40/40 2 3 7 Example 6 34/31 One 2 5 Example 7 35/31 0 0 5 Comparative example Penetrate Penetrate Penetrate Penetrate

As described above, it was confirmed that the fabric according to the invention can secure excellent ballistic resistance and anti-ballistic properties, as confirmed from the experiment.

According to the thermoplastic polymer-based bulletproof bulletproof fabric according to the present invention as described above, the manufacturing method thereof, and the bulletproof bulletproof fabric manufactured thereby, it is possible to secure both excellent bulletproof and antiballistic properties while being a relatively lightweight fabric. , It has excellent wearability and activity, and has the advantage of improving manufacturing processability.

The embodiments described in the present specification and the accompanying drawings are merely illustrative of some of the technical ideas included in the present invention. Accordingly, it is obvious that the embodiments disclosed in the present specification are not intended to limit the technical idea of the present disclosure, but to explain the technical idea, and thus the scope of the technical idea of the present disclosure is not limited by these embodiments. Modification examples and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical idea included in the specification and drawings of the present invention should be interpreted as being included in the scope of the present invention.

110: fabric base layer
120: thermoplastic polymer layer
S110, S120: Fabric material preparation step
S200: fabric forming step

Claims (8)

Fabric base layer; And
Includes; a thermoplastic polymer layer formed on one or both sides of the fabric base layer,
The fabric base layer is characterized in that made of at least one of a carbon fiber fabric or a carbon-aramid hybrid fiber fabric
Bulletproof bulletproof fabric.
The method of claim 1,
The thermoplastic polymer layer is made of any one selected from the group including a thermoplastic polypropylene polymer, a thermoplastic polybutyl terephthalate polymer, a thermoplastic polyurethane polymer, and a thermoplastic polyester polymer,
The thermoplastic polymer layer, characterized in that having a hot melt layer on one side
Bulletproof bulletproof fabric.
The method of claim 2,
The thermoplastic polymer layer is characterized in that consisting of a thickness of 20㎛ ~ 200㎛
Bulletproof bulletproof fabric.
A fabric material preparation step of preparing a thermoplastic polymer and a fabric to be integrated with the thermoplastic polymer; And
A fabric forming step of forming a fabric by laminating and integrating a thermoplastic polymer on one or both sides of the fabric prepared; including,
The fabric prepared in the fabric material preparation step is made of at least one of a carbon fiber fabric or a carbon-aramid hybrid fiber fabric.
Manufacturing method for bulletproof bulletproof fabric.
The method of claim 4,
The thermoplastic polymer prepared in the fabric material preparation step is composed of any one selected from the group including a thermoplastic polypropylene polymer, a thermoplastic polybutyl terephthalate polymer, a thermoplastic polyurethane polymer, and a thermoplastic polyester polymer,
The thermoplastic polymer prepared in the fabric material preparation step is characterized in that it is provided with a thickness of 20㎛ ~ 200㎛
Manufacturing method for bulletproof bulletproof fabric.
The method of claim 4,
The thermoplastic polymer is provided with a hot melt layer on one side,
The fabric forming step is characterized in that the thermoplastic polymer formed by hot melt processing on one side is laminated on one or both sides of the fabric, and then compressed by a high pressure press of 100t to 1,000t to integrate it.
Manufacturing method for bulletproof bulletproof fabric.
The method of claim 6,
The fabric forming step is characterized in that it is carried out in a temperature range of 120°C to 200°C, a pressure condition of 3kgf to 10kgf, and a pressing time of 5 to 20 minutes when the fabric is compressed by the high pressure press and integrated.
Manufacturing method for bulletproof bulletproof fabric.
A bulletproof bulletproof fabric manufactured by the method of manufacturing a bulletproof bulletproof fabric according to any one of claims 4 to 7.

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