JP2007062387A - Protecting material, blade-protecting wear and protecting article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an excellent protecting material and protecting article such as a blade-protecting wear, leggings, an arm cover, etc., which satisfies protectability, particularly good movability, blade-protectability, and flexibility, namely three wearing characteristics. <P>SOLUTION: The protecting material comprises a plural laminate of knits of synthetic fiber, wherein a knitted twill fabric of a metal rope made of a metal line and a synthetic fiber is inserted in an intermittent side of the layer. The blade-protecting wear and the protecting article comprises the protecting material. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a protective material, a blade-proof garment, and a protective equipment that are flexible and excellent in mobility and place importance on wearability.

As a conventional protective material and protective gear such as a blade-proof garment and an arm cover, the entire body is a single metal plate, as in Patent Document 1, a plurality of laminated plates and a high-strength laminated fabric-integrated molded product obtained by resin impregnation processing A laminated fabric using high strength fibers such as high-strength polyethylene has been proposed as a flexible shock absorbing material having a structure in which small metal plates are combined as in Patent Document 2 and Patent Document 3.
JP 63-152232 A JP-A-1-46594 Japanese Patent Laid-Open No. 63-80198

  However, in the former two known examples, no consideration was given to wearability, and they were very hard and inferior to athletic students. Moreover, there was a fault that a laminated board hits every time it moves. The third known example is flexible and excellent in wearability and has anti-elasticity due to impact absorption. However, a blade having a sufficient anti-blade performance cannot be obtained unless it is thickly laminated. That is, there is no conventional technique that can satisfy both wearability and blade-proofing properties at the same time.

  For this reason, police officers used bulletproof vests and blade-proof vests depending on the situation. In other words, they could not always wear them, and even if an incident occurred during the police, they had to face unprotected and were at risk.

  In view of the shortcomings of the prior art, the present invention provides an excellent protective material, blade protection garment, and armor that simultaneously satisfies the three characteristics of protection, particularly motility and blade prevention, and further flexibility, that is, wearability. It is to be provided.

  The present invention employs the following means in order to solve such problems. That is, the protective material of the present invention is a protective material composed of a plurality of laminates of synthetic fiber fabrics, and an interwoven fabric formed by interweaving a metal rope made of metal strands and synthetic fibers in the middle of the laminate. It is characterized by having been inserted.

  Further, the blade-proof garment and the protective equipment of the present invention are characterized by being composed of such a protective material.

  According to the protective material of the present invention, the soft type is lighter and thinner than the conventional one and has an excellent blade-proof property. By being able to wear it all the time, it is possible to protect the safety of the clerk.

  The present invention has been intensively studied on an excellent protective material that simultaneously satisfies the above-mentioned problems, that is, mobility and blade-proofing properties, and further flexibility, that is, wearability. When we tried to insert an interwoven fabric with synthetic fibers, we found that this problem could be solved all at once.

  That is, by such means, the protection by a knife such as a knife, in particular, the blade prevention can be remarkably improved despite the ease of movement and excellent wearing feeling without losing flexibility, and the metal rope The dent has been reduced and it has been prevented from biting into the body.

  The synthetic fiber fabric in the present invention is a fabric composed of ordinary synthetic fibers, and for example, a fabric composed of polyolefin fibers, polyacrylic fibers, polyamide fibers, polyester fibers, or the like can be used. Among such fabrics, from the viewpoint of protection, fabrics composed of high-strength fibers, that is, high-strength fabrics are preferably used. Such a high-strength fabric is preferably composed of synthetic fibers having a fiber strength of 12 cN / dtex or more. As such fiber, aromatic polyamide, high-strength yarn polyvinyl alcohol fiber, and ultra high molecular weight polyethylene are preferably used. Among them, para-aramid fiber is preferable because it is strong and excellent in heat resistance.

  The higher the density of such a high-strength woven fabric, the higher the cutting resistance, and it is particularly preferable for ice picks because a large blade-proof effect can be obtained. Such density can be indicated by another expression called a cover factor. That is, a high-strength fabric having a cover factor of preferably 800 to 1000 in at least one of the warp direction and the weft direction is used. When such a cover factor is less than 800, texture shift occurs, cutting resistance is lowered, and when it exceeds 1000, weaving property may not be lowered. Further, the woven structure of the woven fabric is not particularly limited, but the plain woven structure is preferable because it is thin and not misaligned. The difference in density between the warp and the weft of such a high-strength fabric is preferably 10% or less from the viewpoint of cutting resistance and blade prevention.

Here, the cover factor (CF) in the present invention is represented by the following equation. The higher the cover factor, the higher the density of the fabric.
CF of warp = n ₁ (D ₁ ) ^1/2
Where n _{1 is the} number of warp yarns (2.54 cm)
D ₁ ; warp fineness (dtex)
Weft CF = n ₂ (D ₂ ) ^1/2
Where n ₂ ; number of weft yarns (2.54 cm)
D ₂ : Weft fineness (dtex).

  The total fineness (yarn fineness) of such a high-strength fabric is preferably 110 to 550 dtex, more preferably 220 to 440 dtex. In addition, since the energy absorption is large and the penetration resistance can be increased, a high-performance blade-proof property can be obtained. However, if the fineness is too small, the cost increases.

  The metal rope in the present invention is composed of a metal wire having a diameter of preferably 0.03 to 0.20 mm, more preferably 0.05 to 0.15 mm. As the material of such a metal wire, any material having a high surface hardness is excellent in blade-proofing properties, so that the type of metal is not particularly limited, but stainless steel, carbon steel and the like are preferably used. A metal rope is constituted by twisting 21 to 49 strands. As the number of twists increases, a more flexible metal rope can be provided.

  Such a twist includes an upper twist and a lower twist, and in the metal rope in the present invention, the thicker the metal strand, the smaller the upper twist and the lower twist, and the smaller the thin, Apply the twist. The number of upper twists is preferably 100 to 300 T / m, more preferably 110 to 280 T / m, although it depends on the thickness of the strand. Further, the number of lower twists is similarly in the range of 150 to 650 T / m, more preferably 180 to 600 T / m, although it depends on the thickness of the strand.

More specifically, the metal rope in the present invention is obtained by twisting 3 to 7 metal strands in the form of the number of _primary twists A (T / m) = K ₁ / D with K ₁ = 25 to 45. and, 5-7 present the the created stranded, in the formula of the number of final twists B (T / m) = K 2 / D, are those made by twisting case with the K ₂ = 12 to 24. The metal rope thus obtained has the characteristics that it is easy to bend even though it is hard and difficult to cut, and is rich in elasticity. The diameter of the metal rope is preferably 0.4 to 1.5 mm, more preferably 0.6 to 1.2 mm, although it depends on the application. The thinner it is, the more flexible it is, but the higher the price, and the more the thickness exceeds 1.5 mm, the thicker the weight and the heavier it becomes. It is used from the top to provide a rope that is easy to bend and has high elasticity.

  For example, a metal rope having a thickness of 1.0 to 1.5 mm is preferably used for a blade-proof vest, and 0.4 to 0.8 mm is preferably used for trousers, gloves and small items. .

  As such a metal rope, a stranded wire composed of 1 × 37 strands, a rope formed by twisting 3 × 7 strands or 7 × 7 strands can be used. Among them, the twisted wire is hard and difficult to use because the cut surface is scattered, and a 7 × 7 twisted rope is preferable. The 3 × 7 one is cheap but slightly hard, and the 7 × 7 one has the advantages and disadvantages of being flexible but somewhat expensive, but any of the present invention can be used. Further, in order to prevent a tingling sensation when the end surface of the metal rope is touched, it is desirable to coat the metal rope with nylon resin or the like to prevent the end surface from being scattered.

  The protective material of the present invention is formed by inserting a woven fabric obtained by interweaving a metal rope made of a metal strand and a synthetic fiber in the middle of the laminated body in a plurality of laminated bodies of synthetic fiber woven fabrics. That is, it is possible to use a woven fabric in which a synthetic fiber, for example, a para-aramid fiber, is inserted between metal ropes, or a metal rope is arranged on the warp and a synthetic fiber is arranged on the weft.

  The rope density of the metal rope is preferably 2 to 10 pieces / cm, more preferably 3 to 8 pieces / cm, although the background depends on the rope diameter. For example, a rope density in the range of 5 to 8 pieces / cm for a diameter of 0.6 mm and 3 to 6 pieces / cm for a diameter of 1.2 mm is preferably used. When the rope density is high (the number is large), the price is heavy and the price is high, and when the density is low (the number is small), the blade-proof performance is lowered. Further, the rope density may be the same as the background or may be different.

  Such union woven fabrics may be used by crossing them. In this case, the crossing angle is preferably changed to 90 degrees, more preferably 30 to 150 degrees, and a certain direction such as the warp direction or the weft direction can be strengthened.

  The unwoven fabric in the present invention is one in which one or both sides are bonded and fixed to the high-strength fabric via a synthetic resin, and further sewn to form a blade-proof garment. Such a synthetic resin may be used after being laminated, or may be used by applying an adhesive such as a double-sided adhesive or a polyurethane-based bond. Further, in such a protective material, preferably 20 to 50% by weight of the upper layer part and 50 to 80% by weight of the high-strength fabric are arranged in the lower layer part, and the sheet-like material is inserted between them. That is, the blade-proof property can be further improved by arranging a large number of high-density fabrics on the outer skin side of the front surface and on the skin side of the back surface. In short, it is better to divide into two and insert a sheet-like material between them. Of course, as such a high-strength woven fabric, it is preferable to use a laminate of a plurality of sheets.

  The protective material of the present invention thus obtained has the effect that the knife and the blade knife can stop the impact force with the metal rope regardless of the angle, and even if the rope is cut, the knife stops with the fabric laminate. Is. In addition, a thin tip such as an ice pick can be stopped only by a high-density fabric laminate. In addition, when a metal rope appears on the front surface or the back surface, it is preferable to wrap it in a high-density fabric because the touch and feel are uncomfortable. It is preferable to enclose the sheet-like material having a smaller area than the high-density fabric.

  Dangerous work by sewing such protective materials and using them as blade-proof clothing, using them in protective helmets that are reinforced by putting the sheet in a helmet, or using them as shin pads, arm covers, shoes, or socks , Improve safety in sports.

  The present invention will be described below with reference to the drawings.

  FIG. 1 shows a protective material according to the present invention, that is, a high-strength high-density fabric 1 laminated with a cross-woven fabric formed by interweaving a plurality of metal ropes and synthetic fibers, that is, a plurality of high-strength high-density fabrics 1. It is the schematic which inserted and laminated | stacked this interwoven fabric 2 between 1 '.

  EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to this.

[Reference example]
A plain woven fabric having a warp and weft density of 44 yarns / 2.54 cm and a cover factor of 880 using para-aramid fibers having a single yarn strength of 20 cN / dtex and a total fineness of 440 dtex was produced.

  The 20 woven fabrics were stacked and cut with a scissors cutting machine into a pre-viewing shape. Next, a stainless steel rope with a thickness of 1 mm composed of 49 thin wires (7 × 7) is aligned with a warp warper so that the density is 5 / cm, and the double-sided adhesive sheet 5 is fed with a feed roll 7. Press and paste the rope partly while dropping the polyurethane bond 6 on the sheet, paste the plain fabric 4 made of the aramid fiber on the back, dry and fix it, wind it around the cylinder 10 and roll it around the metal rope sheet It was created.

  Subsequently, the metal rope sheet was cut into a 30 × 30 cm square and the cut surface was fixed with tape.

  The high-density fabric made in this way was divided into 5 sheets on the front and 15 sheets on the back, and a metal rope sheet was inserted between them and the surroundings were sewn and integrated with an overlock sewing machine.

  The laminate was wrapped with a polyester 165 dtex woven fabric and sewed before the best appearance. The back appearance was sewn only with the fabric, and the front and rear sights were combined to finish the waistcoat.

[Example 1]
A 1 mm thick stainless steel rope is alternately driven with para-aramid fibers with a total fineness of 1650 dtex, and a warp yarn with a rope weaving density of 5 / cm, and para-aramid fibers with a fineness of 880 dtex and weft yarns. It was created.

  Two unwoven fabrics were stacked vertically and horizontally, and a laminate of 20 plain fabrics made of para-aramid fibers similar to the reference example was integrated to create a blade-proof vest. The finished waistcoat was as light as about 650 g, and even when the cutter entered, there was no texture shift, and the penetration resistance value of the blade knife was 2400 N, which was excellent in flexibility.

  When the blade-proof material was finished on an arm cover or trousers, it was popular with little discomfort due to wearing.

[Comparative Example 1]
A wire mesh made by weaving a steel wire having a thickness of 0.6 mm with a density of 8 pieces / cm in the background was inserted into the high-density woven fabric of the reference example. The resulting vest had a penetration resistance value of 2000 N, but was finished with a lack of flexibility. For this reason, although the wire mesh was divided into 20 parts, it was still only hard and lacked in mobility.

[Comparative Example 2]
A woven fabric having a polyester yarn fineness of 550 dtex and a weft density of 35 / 2.54 cm was prepared, and a metal rope sheet of a reference example was inserted into 20 intermediate layers. The anti-penetration resistance value of the finished vest knife of the waistcoat was 1800 N, but the anti-penetration resistance value with the ice pick was 500 N, which was considerably low.

This figure is a schematic view of the protective material of the present invention in which a high-density woven fabric, a plurality of metal ropes, and a woven fabric formed by interweaving synthetic fibers are laminated.

Explanation of symbols

1, 1 ': High-strength high-density fabric 2: Interwoven fabric formed by interweaving metal rope and synthetic fiber

Claims (20)

A protective material comprising a laminate of a plurality of synthetic fiber fabrics, wherein an interwoven fabric formed by interweaving a metal rope made of metal strands and a synthetic fiber is inserted in the middle of the laminate. . The protective material according to claim 1, wherein the synthetic fiber fabric is a high-strength fabric made of synthetic fibers having a fiber strength of 12 cN / dtex or more. The protective material according to claim 1 or 2, wherein the metal wire is one selected from stainless steel and carbon steel. The protective material according to any one of claims 1 to 3, wherein the interwoven fabric is a plurality of sheets. The protective material according to any one of claims 1 to 4, wherein the synthetic fiber fabric is a high-density fabric in which a cover factor of at least one of warp and weft is 800 to 1000. The protective material according to any one of claims 1 to 5, wherein the synthetic fiber fabric is composed of a material having a total fineness of at least one of warp and weft in the range of 110 to 550 dtex. The protective material according to any one of claims 1 to 6, wherein the synthetic fiber of the synthetic fiber fabric is para-aramid fiber. The protective material according to any one of claims 1 to 7, wherein the metal rope is composed of a strand having a diameter of 0.03 to 0.20 mm. The protective material according to any one of claims 1 to 8, wherein the metal rope is formed by twisting 21 to 49 strands. The protective material according to claim 1, wherein the metal rope has a diameter in the range of 0.4 to 1.5 mm. The protective material according to any one of claims 1 to 10, wherein the synthetic fiber of the unwoven fabric has a strength of 5.3 cN / dtex or more. The protective material according to any one of claims 1 to 11, wherein the unwoven fabric is composed of a rope density of 2 to 10 pieces / cm in terms of background. The protective material according to any one of claims 1 to 12, wherein the unwoven fabric is bonded and fixed to the synthetic fiber fabric via a synthetic resin on both sides. The protective material according to claim 13, wherein the synthetic resin is laminated. The protective material has a synthetic fiber fabric of 20 to 50% by weight in the upper layer part and 50 to 80% by weight of the lower layer part, and the interwoven fabric is inserted between them. The protective material according to claim 1. The protective material according to claim 15, wherein the synthetic fiber fabric is a laminate of a plurality of sheets. An anti-blade garment comprising the protective material according to claim 1. The anti-blade garment according to claim 17, wherein the anti-blade garment is constituted by sewing a protective material. A protective device comprising the protective material according to any one of claims 1 to 16. 20. The protective device according to claim 19, wherein the protective device is a protective helmet, a shin pad, an arm cover, a sock or a shoe.

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