KR102128105B1 - Protective textile with two layer having various colors and excellent strength - Google Patents

Abstract

The present invention relates to a protective textile with knife-proof and bulletproof functions. According to the present invention, the protective textile is formed by facing and laminating a pair of composite fiber layers including a surface layer dyed to express color and a strength reinforcement layer formed on a surface layer by double weaving to be formed on different surfaces while allowing the strength reinforcement layers of the different surfaces to come in surface contact with each other. Accordingly, since the protective textile is formed by double weaving of the surface layer including dope dyed yarn expressing various kinds of colors and the strength reinforcement layer with excellent strength, the protective textile can be integrally produced with a weaving machine, thereby facilitating production. Moreover, since the strength reinforcement layers, which are the different surfaces of the composite fiber layer of a double weaving structure, are faced and laminated, the inner side has a small thickness while the outside can express a beautiful appearance, such that the protective textile provides excellent strength to realize knife-proof and bulletproof functions while being light, thereby being used as protective clothing.

Description

Protective fabric with double color and excellent strength {Protective textile with two layer having various colors and excellent strength}

The present invention relates to a protective fabric formed of a double-woven structure having various colors and excellent strength, and more specifically, by combining a composite fiber layer formed of a double-woven double-sided surface made of ultra-high-strength fibers and the surface expressed in various colors by dyeing It relates to a protective fabric that is light in weight and has excellent strength by forming a thin thickness while being able to produce an elegant design.

Protective clothing has been developed to protect the body from external attacks or impacts such as knives and bullets, and protective clothing is developed that has a protective function for the body and the fabric itself is equipped with a separate panel and the fabric itself has a protective and bullet-proof function. It is divided in a way to give.

Republic of Korea Patent Publication No. 2011-0090633, Patent Registration No. 10-1566483 discloses a ceramic panel that can be incorporated into a garment such as a bulletproof vest, but the protective garment with ceramic panel embedded lacks flexibility and heaviness of the wearer The disadvantage is that there are many restrictions on maneuverability.

A fabric woven from fibers having high strength characteristics so as to exhibit anti-blazing and bullet-proof functions without introducing a separate ceramic panel is disclosed in Korean Patent Publication No. 2010-0032764, and the like. Such fabrics exhibit high strength properties using aramid fibers or ultra high molecular weight polyethylene (UHMWPE) fibers, and fabrics are usually laminated with a plurality of woven fibers to improve protection performance.

However, it is difficult to manufacture due to the need for an adhesive or fusion process for lamination of the high-strength fiber layer. In addition, aramid fibers or ultra-high molecular weight polyethyline fibers have excellent strength, but are difficult to produce in color, so there is a limit to the design expression required for clothes.

Republic of Korea Patent Publication No. 2011-0090633 (Ceramic bulletproof panel for body armor and its manufacturing method. 2011.08.10. published) Patent registration No. 10-1566483 (Method of manufacturing ceramic bulletproof panels for body armor. Announced on November 13, 2015) Republic of Korea Patent Publication No. 2010-0032764 (aramid fiber and bullet-proof fabric using the same. 2010.03.26. published) Republic of Korea Patent Publication No. 2018-0027871 (high-strength fabric for protective clothing and a method for manufacturing the same. 2018.03.15. public)

The present invention was devised to solve such a prior art, and the present invention is capable of expressing various colors and forming a thin thickness to provide a protective fabric having a light weight and excellent strength, thereby exhibiting a sword and bulletproof function. have.

In order to achieve this object, the protective fabric according to the present invention is a pair of a composite fiber layer having a surface layer on which a color is dyed and a color reinforced layer is formed on the surface layer, and a strength reinforcement layer formed on the back surface is interviewed with each other. It is characterized by being formed by being nested.

In the present invention, the surface layer may be a dyed nylon yarn, and the nylon yarn may be formed of a circular yarn formed by adding color masterbatch chips at 0.4% to 4.0% by weight of the total weight.

In the present invention, it is preferable that the strength-reinforcing layer is any one of weft yarns or warp yarns, either ultra high molecular weight polyethylene yarn (UHMWPE) or high density polyethylene yarn (HDPE).

In the present invention, it is preferable that the ultra high molecular weight polyethylene yarns (UHMWPE) or high density polyethylene yarns (HDPE) on the back of the pair of composite fiber layers are orthogonally orthogonal to each other.

In the present invention, the pair of composite fiber layer is a polymer film layer or ultra-high molecular weight polyethylene yarn or a high-density polyethylene fabric interposed through a protective fabric, characterized in that interposed.

In the present invention, the cutting force of the fabric is 35N or more, and the ballistic resistance is preferably 373m/s or more based on NIJ level II.

According to the present invention, since the surface represented by various colors by dyeing and the back surface made of ultra-high-strength fibers can be integrally produced by using a weaving machine, production is easy, and the strength reinforcement layer, which is the back side of the composite fiber layer of the double-woven structure By merging with each other, it is possible to produce a beautiful design on the outside, while the inside is thin and light, yet it has excellent strength.

1 is a photograph showing the front and back surfaces of a composite fiber layer according to an embodiment of the present invention.
2 is a cross-sectional view of a composite fiber layer according to an embodiment of the present invention.
3 is a cross-sectional view of a protective fabric in which the back surfaces of a pair of composite fiber layers are combined according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

This embodiment is provided to more fully explain the present invention to those having average knowledge in the art, and the shape of the elements in the drawings, the size of the elements, the spacing between the elements, etc. emphasizes a clearer explanation. For this, it may be exaggerated or reduced.

In addition, when it is determined that the technical features of the present invention may unnecessarily obscure the technical features of the present invention, as a matter of ordinary skill in the art, such as known functions or known configurations, which are related in principle in describing the embodiments. The description will be omitted.

1 is a photograph showing the front and back surfaces of the composite fiber layer 100 according to an embodiment of the present invention. 2 is a cross-sectional view of the composite fiber layer 100.

The composite fiber layer 100 according to the present invention, as shown in Figures 1 and 2, the surface and the back surface of the different fibers are woven in a double weave, the outer surface layer 110 is dyed to express various colors. The surface layer 110 may be dyed with post-dying or ombre, ombre expressed in a uniform color is preferred. Therefore, it is preferable that the warp 111 and the weft yarns 112 woven to form the surface layer 11 are capable of omitting and have excellent strength.

In order to express more vivid colors, it is preferable that the warp 111 and the weft yarn 112 are made of a nylon yarn. The original yarn is mixed and melted with nylon chips and color masterbatch chips, and has the advantage of being able to produce natural and vivid colors as color is evenly expressed on the fiber surface. The color masterbatch chip added to the nylon chip is added with 0.4% to 4.0% by weight of the total weight of the nylon yarn. When the color masterbatch chip is less than 0.4% by weight, color development is difficult, and when it exceeds 4.0% by weight As it acts as a foreign substance, the spinning workability decreases.

Nylon yarns that are slope 111 and weft 112 of the surface layer 110 are formed of 200-600 denier (D) so that sufficient strength is expressed, and as shown in FIG. 2, slope 111 and weft 112 are It is woven to form the surface layer 110, the inclination 111 is arranged in duplicate on the surface and the back surface so that the strength reinforcement layer 120 of the back surface is woven in a double weave.

The strength reinforcing layer 120 is a fabric layer formed on the back side of the surface layer 110, which is colored by dyeing, and as shown in FIG. 2, the high-strength fiber weft 121 is interwoven on the slope 111 arranged on the back side. Is formed. As the high-strength fibers of the strength reinforcement layer 20, ultra high molecular weight polyethylene yarn (UHMWPE) or high density polyethylene yarn (HDPE) can be used. Although there are limitations, the wear resistance and anti-glare property are superior to that of aramid yarns, and the specific gravity is low, so the number of stackings is small and light weight is possible. In addition, as the ultra high molecular weight polyethylene yarn and high density polyethylene yarn of the present invention are disposed on the back side of the composite fiber layer 100, they are not directly exposed to sunlight or heat, thereby preventing deterioration by the external environment.

The pair of composite fiber layers (100, 200) made as described above is the strength reinforcement layer (120, 220), which is the back surface, is interviewed to each other to form a protective fabric of the present invention, and FIG. 3 is a cross-sectional view of the protective fabric thus formed. A pair of composite fiber layers (100,200) are backed by an adhesive layer (130) made of an adhesive. In FIG. 3, a pair of strength reinforcing layers (120, 220) via an adhesive layer (130) are ultra-high molecular weights of weft (121,221). Polyethylene yarns or high-density polyethylene yarns are shown to be congruent to be parallel, but it is preferable to be concentric to be orthogonal to each other. In addition, the composite film layer (100,200) can be combined through a polymer film layer or a fabric made of ultra high molecular weight polyethylene yarn or high density polyethylene yarn to improve strength when compounding. The polymer film layer is a polyolefin-based polymer, a polyester-based polymer, a copolyester-based polymer, a thermoplastic polyurethane-based polymer, a polyamide-based polymer, a copolyamide ( Copolyamide) polymer, EVA (Ethylene Vinyl Acetate) polymer, may be formed of any one of acrylate (Polyacrylate) polymer material, the tensile strength is preferably 25MPa or more.

As such, when the high-strength yarn, ultra-high molecular weight polyethylene yarn or high-density polyethylene yarn is impregnated orthogonally to each other, the strength of the strength reinforcing layers 120 and 220 is improved, thereby protecting the wearer from being damaged or damaged from external impact such as a knife or bullet. In addition, as the surface layers 110 and 210 dyed in various colors are formed on the front and rear surfaces and exposed to the outside, it can be cut into a desired color and design regardless of the direction of the front and rear surfaces.

On the other hand, in the above-described embodiment, it has been described an example in which high-strength fibers, which are the weft yarns 121 and 221 of the strength reinforcing layers 120 and 220 of the back surface, are formed by interposing the inclinations 111 and 211 of the surface layers 110 and 220, but the surface layers 110 and 220 ) Of the weft (112,212) of the double-sided high-strength fiber of the back side of the slope may be formed by being woven.

<Example>

Melt-mix 2% by weight of a color masterbatch chip in which carbon black is added to 98% by weight of nylon 66 chips as a colorant to combine the nylon filament yarns produced by spinning to make 350 denier nylon yarns as weft and double slope forming the surface layer. 350 denier ultra high molecular weight polyethylene yarn was used as the weft of the back side and weaved in double weaving. The back side of a pair of double woven composite fiber layers was bonded by knife coating with an adhesive.

<Comparative Example>

The weft yarn on the back side of the composite fiber layer was prepared in the same manner as in the above-described example, except that it was made of a nylon denier yarn of 350 denier of the surface layer, not an ultra high molecular weight polyethylene yarn.

<Experiment of cutting force>

Satara STM610 model, a device manufactured according to the ISO13997 standard, was used as a method for evaluating the cutting force. Cutting is measured by the cutting force required when cutting a material on a blade of 20 mm when the range of force is applied to a blade perpendicular to the surface of the sample, and the measurement sequence is cut within 5 seconds with a constant force being gradually applied between the sample and the blade. Start and evaluate the test repeatedly with different forces until at least 15 records are obtained with a cut length between 5 mm and 50 mm. The cutting force was obtained in a range of 5 mm to 15 mm, 15 mm to 30 mm, and 30 mm to 50 mm, and the force at a cutting length of 20 mm was measured as the cutting force.

<Bulletproof Experiment>

For the fabrics of the above examples and comparative examples, bulletproof tests were conducted according to NIJ (National Institute of Justice) Level II standards. The bullet used in the bulletproof experiment was .357mag. The results are shown in Table 1 below. In the table below, the bulletproof performance is the maximum speed at which the bullet does not pass through the target.

Example Comparative example Cutting force (N) 35.4 12.8 Bulletproof performance (m/s) 378 295

As shown in Table 1 above, the cutting strength of the example was 35.4N, which was superior to the cutting strength of the comparative example (12.8N), and excellent anti-knocking performance was confirmed, and in the bulletproof performance, the example was 373m/s, compared with 295m/s of the comparative example. As a result, excellent bulletproof performance was also confirmed.

As described above, the protective fabric of the present invention can be integrally produced using a loom as the surface layer 10 and the strength reinforcing layer 20 having excellent strength are formed of double weaves, which are fabricated with a weaving yarn with various colors. There is one advantage. In addition, the protective fabric of the present invention is a double-layered composite fiber layer (100,200) of the strength reinforcement layer 20, which is in contact with each other and can be combined to produce an elegant design, while the inside is thin and lightweight, yet excellent in strength and excellent strength. Of course, the bulletproof function is also expressed and can be used as a protective clothing.

The present invention described above is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or modifications will have to belong to the claims of the present invention.

100, 200: composite fiber layer 110, 210: surface layer
111, 211: slope 112, 212: weft
120, 220: strength reinforcement layer 130: adhesive layer

Claims (8)

In the protective fabric with bulletproof and anti-blade function,
A protective fabric characterized in that a pair of composite fiber layers comprising a surface layer on which a dyed color is expressed and a strength reinforcement layer formed on the back surface by being woven into the surface layer are formed by interfacing and interposing the strength reinforcement layers on the back surface. According to claim 1,
The surface layer is a protective fabric, characterized in that the dyed nylon yarn. According to claim 2,
The nylon yarn is a protective fabric, characterized in that the color masterbatch chip is formed by adding 0.4% to 4.0% by weight of the total weight. According to claim 2,
The strength reinforcing layer is either a weft yarn or a warp fabric, characterized in that either one of ultra high molecular weight polyethylene yarn (UHMWPE) or high density polyethylene yarn (HDPE). According to claim 4,
A protective fabric characterized in that the pair of ultra high molecular weight polyethylene yarns (UHMWPE) or high density polyethylene yarns (HDPE) on the back side of the composite fiber layer are orthogonally orthogonal to each other. According to claim 4,
The pair of composite fiber layer is a polymer film layer or a high-molecular weight polyethylene yarn or a protective fabric, characterized in that the fabric is composed of high-density polyethylene yarn. The method of claim 5,
Protective fabric is characterized in that the cutting force of the fabric is 35N or more. The method of claim 5,
The fabric is based on NIJ level II, the ballistic performance is 373m / s or more characterized in that the protective fabric.

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