KR102656086B1 - Knife defense suit with cut-resistant function using hybrid layered pattern - Google Patents

Abstract

The present invention relates to an anti-virus suit using a hybrid laminated pattern. More specifically, it is a protective clothing using a hybrid lamination pattern using special composite yarn manufacturing, high-density weaving technology, and thin-film resin application molding technology to simultaneously implement cut prevention and stab prevention functions.
To this end, the present invention is used as a front agent, and is provided to absorb part of the energy when an impact is applied and at the same time to blunt the formation of impact materials; A second stab-resistant fabric sheet provided to prevent penetration when the first stab-resistant fabric sheet is torn; A third stab-resistant fabric sheet is used in multiple pieces overlapping and is provided to prevent trauma to the user from impact transmitted from the second stab-resistant fabric; And the first stab-proof fabric sheet, the second stab-proof fabric sheet, and the third stab-proof fabric sheet are sequentially stacked from each front to the back to form a lamination pattern.

Description

Knife defense suit with cut-resistant function using hybrid layered pattern}

The present invention relates to an anti-virus suit using a hybrid laminated pattern. More specifically, it is a protective clothing using a hybrid lamination pattern using special composite yarn manufacturing, high-density weaving technology, and thin-film resin application molding technology to simultaneously implement cut prevention and stab prevention functions.

In general, body armor that protects the human body from firearms is a self-defense device that protects the human body from enemy firearm threats during police work or various security services and includes an outer shell, ballistic plate, and bulletproof plate.

Such body armor has been actively developed in countries where the use of firearms is legal, such as the United States, and is especially manufactured in accordance with the police body armor testing standards of the U.S. Department of Justice's Institute of Justice.

Meanwhile, in countries where the use of firearms is not legal, such as Korea, there is a greater need for the development of bulletproof clothing to protect the body from weapons with sharp tips or blades, such as knives or awls. These bulletproof clothing includes a bulletproof pad that prevents objects with sharp tips or blades, such as knives or awls, from penetrating.

In addition, the demand for anti-bullying uniforms is increasing day by day as they are used not only in the police work field, coast guard work field, national defense field, and security work field, but also in various work sites and industrial sites where physical damage can be caused by exposure to sharp objects.

Recently, in addition to police work and security work, it is also used in industrial sites where the human body can be damaged by objects with sharp ends, such as at engineering crushing sites, and in cases where people want to be protected from threats from sharp objects such as bamboo spears at sites for suppressing demonstrations. Wearing such anti-bullet clothing is becoming mandatory, and demand is increasing due to its effectiveness.

However, the bullet-proof clothing disclosed so far is merely an improvement in the form of the bullet-proof vest, and therefore, a bullet-resistant suit with special functions dedicated to bullet-proofing is required.

For example, examples of disclosed bulletproof clothing include improved Kevlar (product name of DuPont), improved Twaron (product name of Enca), and shock absorbers with high strength and heat resistance such as reinforced fiber or felt. One example is an improved body armor made of special materials.

However, these disclosed anti-blocking suits necessarily contain a layer or multi-layer metal plate that prevents awls or blades from penetrating, or contain high-strength plastic, which slows down the wearer's movements when working while wearing them. This causes the disadvantage of a significant decrease in work efficiency.

In addition, if a metal plate is built in, the weight increases and becomes heavy, which increases fatigue when worn for a long time, and has the disadvantage of lowering productivity as work efficiency drastically decreases.

Therefore, there is an urgent need to develop a stab-proof sheet that has a stab-proof function but is light in weight and does not reduce work efficiency.

Prior art literature: KR Registered Patent Publication No. 10-1424051 (announced on July 28, 2014)

The present invention was developed to solve the above problems, and it develops a weaving design pattern for stab-resistant fabric and uses composite yarns including metal yarns as the warp and weft yarns used in the fabric to increase wearing comfort and at the same time have excellent cut resistance performance. The purpose is to provide anti-attack clothing using a hybrid laminated pattern.

The bulletproof clothing using the hybrid laminated pattern according to the present invention devised to achieve the above object is used as a full-face shield, and is a first shield provided to absorb part of the energy when an impact is applied and at the same time blunt the formation of impact objects. fabric seats; A second stab-resistant fabric sheet provided to prevent penetration when the first stab-resistant fabric sheet is torn; A third stab-resistant fabric sheet is used in multiple pieces overlapping and is provided to prevent trauma to the user from shock transmitted from the second stab-resistant fabric; And the first stab-resistant fabric sheet, the second stab-resistant fabric sheet, and the third stab-resistant fabric sheet are sequentially stacked from each front to the back to form a stacking pattern.

In addition, the first anti-splash fabric sheet is one in which sand equivalent to 100 to 500 sandpaper is applied to one side of a fabric woven with aramid-based fibers; The second anti-splinter fabric sheet is woven with composite yarn fibers; And the third anti-splash fabric sheet includes resin coating on one side of a fabric woven with composite yarn fibers.

In addition, the composite yarn fibers used in the second and third stab-resistant fabric sheets are made of core, first covering yarn, second covering yarn, and third covering yarn, and the core is made of glass fiber, and the first covering yarn is made of glass fiber. The yarn is made of PET 200d, the second covering yarn is made of SUS wire, and the third covering yarn is made of UHMWPE.

According to the present invention, it is a bulletproof clothing that can simultaneously implement cut resistance and stabilization performance, and has the effect of securing not only multifunctional protection, lightness, flexibility, and wearing comfort, but also price competitiveness.

Figure 1 is a diagram showing the results of a cut resistance test according to the yarn used and the weaving tissue design to derive a splinter-proof clothing sheet using a hybrid lamination pattern according to a preferred embodiment of the present invention;
Figure 2 is a diagram showing the results of a cut resistance test according to the yarn used and the weaving tissue design to derive an anti-scatter clothing sheet using a hybrid lamination pattern according to a preferred embodiment of the present invention;
Figure 3 is a diagram showing the cut resistance rating table of EN388 and ANSI105 standards;
Figure 4 is a diagram showing the yarn used and weaving tissue design according to the present invention;
Figure 5 is a diagram showing the composition of composite yarn;
Figure 6 is a view showing a third anti-splinter fabric sheet;
Figure 7 is a diagram showing how a cut resistance test is performed;
Figure 8 is a test report testing the attack prevention performance of the attack prevention clothing sheet using a hybrid lamination pattern according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. First, when adding reference signs to components in each drawing, it should be noted that the same components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted. In addition, preferred embodiments of the present invention will be described below, but the technical idea of the present invention is not limited or restricted thereto, and of course, it can be modified and implemented in various ways by those skilled in the art.

Figure 1 is a diagram showing the results of a cut resistance test according to the yarn used and weave tissue design to derive a stab-proof clothing sheet using a hybrid lamination pattern according to a preferred embodiment of the present invention, and Figure 2 is a drawing showing the results of a cut resistance test according to a preferred embodiment of the present invention. A diagram showing the results of a cut resistance test according to the yarn used and the weaving tissue design to derive a bulletproof clothing sheet using a hybrid lamination pattern, Figure 3 is a diagram showing the cut resistance rating table of EN388 and ANSI105 standards. 4 is a drawing showing the yarn used and weaving tissue design according to the present invention, Figure 5 is a drawing showing the composition of the composite yarn, Figure 6 is a drawing showing the third anti-blocking fabric sheet, and Figure 7 is a drawing showing a cutting resistance test. FIG. 8, a diagram showing the appearance, is a test report testing the stab-proof performance of a spot-proof clothing sheet using a hybrid lamination pattern according to a preferred embodiment of the present invention.

The bulletproof clothing using the hybrid lamination pattern according to a preferred embodiment of the present invention includes a first bulletproof fabric sheet, a second bulletproof fabric sheet, and a third bulletproof fabric sheet.

Aramid and UMWPE materials that are commonly sold can be classified into fabric, UD, and XP materials depending on the type of product, and are mostly used as bulletproof materials to protect against pistol bullets.

Products made of these bulletproof material fibers can block pistol bullets, but it is difficult to block awls or sharp knives that come in at an acute angle because they penetrate between the fibers, and even products that emphasize cut resistance have difficulty in pattern design compared to the protective structure of bulletproofs. It is not suitable for inspection because there are areas that need improvement.

The present invention has the advantage of being flexible and light while performing cut resistance, stab protection, and windbreak functions, so it does not reduce work efficiency.

Hereinafter, the components constituting the anti-attack clothing using a hybrid lamination pattern according to a preferred embodiment of the present invention and the functions of each component will be described in detail.

The first bullet-proof fabric sheet is used as the front material that is first impacted when the bullet-proof suit is impacted. When an impact object impacts, the first bullet-proof fabric sheet absorbs some of the energy and is overlapped in large numbers to blunt the shape of the impact object. can be used

The first flake-resistant fabric sheet has inorganic particles containing sand equivalent to 100 to 500 sandpaper applied to one side of a fabric woven with aramid-based fibers.

That is, the first anti-striking fabric sheet has a structure in which sand equivalent to 100 to 500 sandpaper is applied to one side and aramid-based fibers are exposed to the other side, and the side to which the sand is applied is shaped like a knife or awl. When an impact object is impacted, the sharp shape of the impact object is blunted and some of the kinetic energy can be converted into heat or potential energy by cutting the aramid-based fibers.

The second anti-splash fabric sheet is woven with horizontal wefts and vertical warps crossing each other. The weft and warp yarns are each composed of composite yarns, and each composite yarn is centered around S-Glass, which is the core. The outside of the screening is first covered in the Z direction with the first covering yarn of PET 200d, second covered in the S direction with the second covering yarn of SUS wire, and thirdly covered with UHMWPE 200d.

Additionally, the second covering yarn is not limited to SUS wire, and titanium wire and tungsten wire can also be used as the second covering yarn.

The weft and warp yarns that make up the second anti-blocking fabric sheet are woven using a unique crossing method to make up the fabric, and the warp and weft yarns can be woven by crossing each other three times to make up the fabric.

More specifically, the top tissue is composed of weaving in the following order: warp, weft, warp, warp, warp, weft, warp, warp, warp... and the next tissue is weft, weft, warp, weft, weft, The weave is composed in the order of weft, warp, weft, weft... and then the weave is composed in the order of warp, warp, warp, weft, warp, warp, warp, weft, warp... The next structure is composed of warp, weft, weft, weft, warp, weft, weft, weft, warp...

It was found that when the fabric is woven with this weave, it can best perform protective functions including cut resistance, scratch resistance, and moisture resistance.

Referring to Figures 1 and 2, the cut resistance test was performed using the cut resistance test equipment as shown in Figure 7 by varying the composition of the composite yarn and the weaving design organization of the fabric, and the yarn used from sample 1 to sample 6 was the same. As a result of the cut resistance test of the fabric woven by modifying the weave design organization for weaving the fabric, it was confirmed that the modified twill structure had a better cut resistance function than the general twill structure.

The standards for the cut resistance test include the European EN388 standard and the American ANSI105 standard, and the cut resistance rating according to the standard is shown in Figure 3.

The cutting resistance test was conducted using a TDM equipment as shown in Figure 7, and the cut resistance tester was used as an analysis equipment to fix the sample on the stage and calculate the average by finding the force that comes close to the blade's moving distance of 20 mm. A test was conducted.

In addition, from sample 7 to sample 10, only the screening of the composite yarn used for the warp was different, and the weave design organization for weaving the fabric with a modified twill structure using m-aramid as the weft was all the same, and the results were as follows. , tungsten 0.035mm, tungsten 0.018mm, S-Glass, and SUS wire showed excellent cutting resistance test results in that order.

In addition, sample 11 and sample 12 used the same composite yarn for both the warp and weft threads, and as a result of the cutting resistance test of fabrics woven with different weave design organizations, the modified twill tissue of sample 12 was higher than the modified twill tissue of sample 11. Cut resistance was superior.

In other words, using composite yarns for both warp and weft yarns had better cut resistance than using single yarns for the warp and weft constituting the fabric, and the composite yarn composition was S-Glass, the first covering yarn, PET 200d. , the second covering yarn, SUS wire, and the third covering yarn, UHMWPE 200d, had the best cutting resistance.

In addition, the weaving design of the fabric consisted of 3 warp and weft threads crossing each other, which gave the best cutting resistance.

Weaving a fabric weaving structure like sample 12 using composite warp and weft yarns can maximize the cut resistance function without significantly increasing the weight and thickness of the fabric.

In addition, after the warp and weft are woven into a specific fabric weaving structure using composite yarns, the density of the fabric is further improved through heat fixing, etc., and the first covering yarn, second covering yarn, and third covering yarn are used for screening. It can increase the bonding strength between warp and weft yarns and increase resistance to sharp hazards.

The third stab-resistant fabric sheet is used as a plurality of sheets overlapping, and is provided to prevent additional cutting and penetration when the first and second stab-resistant fabric sheets are cut and penetrated, and is a fabric woven with composite yarn fibers. One side is coated with resin.

The third flake-resistant fabric sheet can be manufactured through post-processing after manufacturing the prepreg using the horizontal scattering method of resin cross-sectional application to ensure precise uniformity of application.

Referring to Figure 6, when the prepreg is manufactured, the prepreg is inserted between SUS plates and cut through press molding to produce fabric.

The third anti-splatter fabric sheet uses fiber and thin-film polymer resin to simultaneously implement cut-resistant, anti-splatter, and anti-splinter functions, and can create lightweight molded products.

The third anti-attack fabric sheet is coated with polymer resin, so even if the first and second anti-attack fabric sheets are cut and penetrated, additional cutting and penetration can be prevented, thereby preventing injury to the anti-attack suit operator. .

Figure 8 is a report on the anti-attack performance test of an anti-bullet suit using a hybrid lamination pattern according to a preferred embodiment of the present invention.

In the test, a stab-proof pad made by laminating the first stab-proof fabric sheet, the second stab-proof fabric sheet, and the third stab-proof fabric sheet was used. In the test items, the S1 Blade is a double-edged sword that tests the stab-proof function, and the P1 Blade is a single blade. The stab-proof function is tested with a blade, and the spike is used to test the stab-proof function using an awl.

The evaluation method is evaluated as passing when the striking energy is 24 ± 0.5J and the rear protrusion of the anti-bullying material is 7 mm or less, and when the striking energy is 36 ± 0.5 J and the rear protrusion of the anti-bullying material is 20 mm or less, it is evaluated as passing.

Referring to FIG. 8, the results of a test for the stabilization performance of a bulletproof clothing using a hybrid lamination pattern according to a preferred embodiment of the present invention show that when struck with a double-edged sword or a single-edged sword with standard striking energy, the rear of the bulletproof material did not protrude, and the awl did not protrude. It can be seen that when hitting with the standard hitting energy of 24±0.5J, the rear did not protrude, and when hitting with the standard hitting energy of 36±0.5J, it protruded to 10.0mm, which is within the standard protruding.

In addition, depending on the usage environment and needs, the water quality and overlapping patterns of the first, second, and third stab-resistant fabric sheets can be configured to vary.

For example, when used to prevent injury in an environment where there is a high risk of being stabbed by a sharp object, two first stab-resistant fabric sheets are overlapped, only one second stab-resistant fabric sheet is used, and a plurality of third stab-resistant fabric sheets are used. When used to prevent injury in an environment where there is a high risk of being cut by a knife or sharp object, only one first stab-resistant fabric sheet is included, multiple second stab-resistant fabric sheets are overlapped, and only one third stab-resistant fabric sheet is used. It can be used in an inclusive way.

Most of the conventional technologies are specialized for one function of cut prevention or one function of stab prevention. There was also a technology that implemented both functions at the same time, but it had the problem of being too heavy and lacking in flexibility.

The present invention maximizes the cut resistance function using special composite yarns and high-density weaving, and discloses a stab-resistant fabric that is light in weight and has excellent stab-proof function by combining different materials, including thin-film resin-applied fibers.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications, changes, and substitutions can be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the attached drawings are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments and the attached drawings. . The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

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Claims (3)

delete A first anti-impact fabric sheet used as an all-over material to absorb some of the energy when an impact is applied and at the same time to blunt the formation of impact materials;
A second stab-resistant fabric sheet provided to prevent penetration when the first stab-resistant fabric sheet is torn;
A third stab-resistant fabric sheet is used in multiple pieces overlapping and is provided to prevent trauma to the user from impact transmitted from the second stab-resistant fabric; and
The first stab-resistant fabric sheet, the second stab-resistant fabric sheet, and the third stab-resistant fabric sheet are sequentially stacked from the front to the back, forming a stacking pattern.
Including,
The first flake-resistant fabric sheet is one in which inorganic particles containing sand equivalent to 100 to 500 sandpaper are applied to one side of a fabric woven with aramid-based fibers;
The second anti-splinter fabric sheet is woven with composite yarn fibers; and
The third anti-splinter fabric sheet is one in which resin coating is applied to one side of a fabric woven with composite yarn fibers;
The second anti-splinter fabric sheet is woven with horizontal wefts and longitudinal warps crossing each other,
The weft and warp yarns that make up the second anti-splash fabric sheet can be woven in three strands at a time to form a fabric.
A protective clothing using a hybrid laminated pattern, including. According to paragraph 2,
The composite yarn fibers used in the second and third stab-resistant fabric sheets are
Screening consists of first covering yarn, second covering yarn, and third covering yarn,
The screening is made of glass fiber, the first covering yarn is made of PET 200d, the second covering yarn is made of SUS wire, and the third covering yarn is made of UHMWPE.
A protective clothing using a hybrid laminated pattern, including.