Soft armor

FIELD: textile industry, paper industry.

SUBSTANCE: invention relates to textile industry. Soft armor is produced by means of the main weaves and their derivatives with the ratio of fiber set of the warp and weft at most 2.0 with connectivity coefficient at least 5.0 and yield at minimum 290 g/m2. Reinforced beam and filling threads are used, they have aramid filament or fiber glass filament with titer of at least 6.3 tex as a core, and secondary spun aramid fiber with titer of beam and filling threads of at least 50 tex. is used as a cover.

EFFECT: production of fiber for special protective clothes and fabrics for protection from ballistic impact, fire, thermal exposure, napalm.

3 cl, 4 dwg, 1 tbl, 6 ex

 

The invention relates to the textile industry and is available for use when creating special protective clothing and products from ballistic shock, fire, thermal radiation, Napalm.

From the patent RU 2258105, D03D 15/12 dated 10.08.2005 known technical fabric made of a yarn comprising staple fiber triple copolyamid or their mixture with natural or artificial, or synthetic fibers (prototype).

The fabric has a low resistance to burning (1.5 to 3 seconds), sensitive to light in the visible spectrum, has no ballistic properties.

The problem to which the invention is directed, is to create a protective fabrics for the manufacture of products for the following applications - protection against ballistic impact, thermal radiation, fire, Napalm, from exposure to oil, bestproducts.

The technical result is achieved by the fact that the tissues are made of basic and reinforced weft yarn. The increase in strength properties of tissue occurs due to the structure of the reinforced yarn having high strength rod and fleecy jacket, precluding separation of the filaments, by increasing the friction at the contact points of the warp and weft threads in the fabric element.

For the manufacture of fabrics used basic and weft reinforced woven thread with linear square is testu not lower than 50 Tex.

Tissue run through the main weaves and their derivatives at the ratio of densities of the yarns in the warp and weft of not more than 2.0, the ratio of connectivity is not less than 5.0 and weighing not less than 290 g/m2.

Reinforced filament produced by the open-end spinning machine of the rod and spinning tapes, creating a shell in the terminal.

As a core use aramid multifilament yarn or glass yarn with a linear density of not lower than 6.3 Tex. Spinning tape is produced from aramid staple fiber yarn obtained from secondary raw materials.

Secondary raw material is a waste, generated during the cutting of the articles of woven, produced from aramid filament yarn.

Under integrated aramid threads for stud understand the threads on the basis of aromatic copolymer of a dibasic acid chloride of terephthalic acid and diamines benzimidazole and p-phenylenediamine or aromatic polymer is poly-p-phenylenevinylene.

As aramid staple fiber yarn for shell use staple fiber based polymer poly-p-phenyleneterephthalamide or aromatic copolymer of a dibasic acid chloride of terephthalic acid and diamines benzimidazole and p-phenylenediamine or poly-p-phenylenevinylene, or polymethacrylamide.

From retina is illustrated by the following examples.

Example thamana fabric made by interweaving reinforced satin 8/3 (figure 1) from the main and reinforced weft yarn linear density of 50×2 Tex with a core of aramid multifilament yarn. A weight is 380 g/m2. The coefficient of connectivity fabric is 5.0 with a ratio of the density of threads in the warp and weft of 1.25. The fabric has high strength properties (table 1), has a flame-retardant properties (does not burn or glow after removal of the flame), has a high resistance to the fast - 105 (according to GOST 12.4.184-97 this figure should be at least 30). The fabric is resistant to oil, bestproducts.

Example 2. Protective fabric made by interweaving incorrect satin (figure 2) from the main and reinforced weft yarn linear density 55.6×2 Tex with a core of aramid multifilament yarn. The coefficient of connectivity fabric is 5.16 when the ratio of the density of threads in the warp and weft of 1.28. The surface density is 335 g/m2. The fabric has high strength properties (table 1), has a flame-retardant properties (does not burn or glow after removal of the flame), has a high resistance to the fast - 76 (according to GOST 12.4.184-97 this figure should be at least 30). The fabric is resistant to oil, bestproducts. The fabric can withstand ballistic impact. When testing is a fragment of a package weighing 4 kg/m 2speed 50%reprobate (V50) is 434 m/S.

Example 3. Protective fabric made plain weaves (figure 3) from the main and reinforced weft yarn linear density 58.3×2 Tex with a core of aramid multifilament yarn. The surface density is 297 g/m2. The coefficient of connectivity fabric is 7.3 when the ratio of the density of threads in the warp and weft 2.0. The fabric has high strength properties (table 1), has a flame-retardant properties (does not burn or glow after removal of the flame), has a high resistance to burning 57.6 (according to GOST 12.4.184-97 this figure should be at least 30). The fabric is resistant to oil, bestproducts.

Example 4. Protective fabric made by interweaving twill 2/2 (figure 4) from the main and reinforced weft yarn linear density 83×2 Tex with a rod of glass yarns. The coefficient of connectivity fabric is 5,38 when the ratio of the density of threads in the warp and weft 1.3. The surface density is 404 g/m2. The fabric has high strength properties (table 1), has a flame-retardant properties (does not burn or glow after removal of the flame), has a high resistance to the fast - 82 (according to GOST 12.4.184-97 this figure should be at least 30). The fabric is resistant to Napalm.

Example 5. Protective fabric is bound is of twill 2/2 from the primary and reinforced weft yarn linear density 55.6× 2 Tex with a core of aramid multifilament yarn. The coefficient of connectivity fabric is 5.1 when the ratio of the density of threads in the warp and weft of 1.28. The surface density is 240 g/m2. The fabric has high strength properties (table 1). The fabric has a ballistic properties. When tested in the composition of anti ricochet package (two layers) 2 protection class speed 50%reprobate (V50) is 429 m/s When tested in the composition of anti ricochet package (three layers) 5 protection class speed 50%reprobate (V 50) is 771 m/C. the Fabric has flame-retardant properties (doesn't burn, smoldering after removing from the flame) and is resistant to oil, bestproducts.

Example 6. Protective fabric made by interweaving the Mat 2/2 from the primary and reinforced weft yarn linear density 83×2 Tex with a rod of glass yarns. The coefficient of connectivity fabric is 5,95 when the ratio of the density of threads in the warp and weft 1.2. The surface density of 400 g/m2. The fabric has high strength properties (table 1), has a flame-retardant properties (does not burn or glow after removal of the flame), which is resistant to the action of Napalm. The fabric is resistant to oil, bestproducts.

Table 1
Mechanical properties of protective fabric according to examples 1-6
# exampleSurface density, g/m2The tensile strength of the strips of fabric 50×200, NTearing load, N
on the basis ofon a duckon the basis ofon a duck
1.38047523436784730
2.33546523983760930
3.30047572810562582
4.40451744225730780
5.29037442522489460
6.40048634677868941

1. Protective fabric containing the base and the weft thread type "core-shell"twisted, at least in two additions, in which the rod used integrated aramid yarn or glass yarn with a linear density of at least 6.3 Tex, and as the shell used aramid staple fiber is, while the linear density of the primary and weft threads of at least 50 dtex, and the surface density of the fabric is at least 290 g/m2.

2. The fabric according to claim 1, which is made plain weaves, or reinforced satin, or incorrect satin, or twill, or matting.

3. The fabric according to any one of claims 1 and 2, in which the shell used secondary aramid staple fiber.



 

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