Heat-resistant woven material

 

(57) Abstract:

The material can be used for the manufacture of protective clothing for special purposes for employees residing in legkonastraivaemy atmosphere. Heat-resistant woven material contains basic and weft threads made of blended yarn, and contains polyaramid threads and wool fiber. Threads contain duck metallic thread with the following content of components in the material, wt.%: polyaramid threads fiber - 48-75, wool fiber - 20-50, metallized thread - 2-5. The material has a protective effect, preventing the accumulation of static electricity, which improves safety in clothes made of such material. 2 C.p. f-crystals, 2 PL.

The invention relates to the textile industry, in particular the production of woven materials and can be used for the manufacture of protective clothing for special purposes for employees residing in legkonastraivaemy atmosphere, for example, for firefighters, workers filling stations, workers in the oil and gas industry.

Known decorative fabric made of polyaramid threads weft yarns interlaced with the weft azella of the USSR №878819, CL D03D 15/12, 1980).

Known fabric has a sufficiently high resistance to abrasion, high ognetushitelya, however, not resistant to mold fungi, which is especially important for materials used in wet atmospheric conditions, and has the ability to accumulate relatively large charges of static electricity for materials used in dry atmospheric conditions.

The closest in technical essence and the achieved result to the claimed is heat-resistant woven material containing basic and weft threads made of blended yarn containing polyaramid threads and a modified wool fibre in the following ratio, wt%:

polyaramid threads fiber 20-80

modified wool

fiber 80-20

(USSR author's certificate No. 1756412, CL D03D 15/00, 15/12, publ. 23.08.92 - prototype).

Known fabric, with high rates in the breaking load, Flammability, gribomont, the surface density is not enough resistant to static electricity, which is especially dangerous for those working in the clothing of such material in a contaminated area and in the territories is giving a protective effect, preventing the accumulation of static electricity, and thereby increase the security in the clothes of such material.

The technical problem is solved by the creation of heat-resistant woven material containing basic and weft threads made of blended yarn containing polyaramid threads and wool fiber, in which in accordance with the invention, the threads contain duck metallic thread with the following content of components in the material, wt.%:

polyaramid threads fiber 48-75

wool fiber 50-20

metallized thread 2-5

In this heat-resistant woven material as metallic threads can be applied steel wire, Nickel-plated.

In the claimed invention for the production of technical tasks was selected prototype - resistant woven material containing components that provide high breaking load, Flammability, surface density, and others (see table 1 descriptions to the author's certificate No. 1756412 prototype) and a specific experimental measure - specific surface electric resistance.

Comparative figures of

Example.

From a mixture of fibers, polyaramid threads in the amount of 66 wt.% and wool fibers in the amount of 30 wt.% prepare the yarn with a linear density of 48.6 per Tex. and a twist of 400 kr./m Then on the weaving looms STB 2-216 produce the fabric, the Foundation of which is 66 wt.% polyaramid threads fibers and 30 wt.% wool fibers and weft - 66 wt.% fibers, polyaramid threads, 30 wt.% wool fibers and 4 wt.% steel wire, Nickel-plated.

In the production of heat-resistant woven material is taken steel thread Nickel-plated diameter of 10-150 μm, polyaramid threads yarn with a linear density 18-100 Tex, woolen thread - 32 Tex, twist yarn - 400-500 kr/m

The data in table 1 show that the new heat-resistant fabric material has a better protective effect, preventing the accumulation of static electricity and thereby increased security in the clothes of this fabric in comparison with the prototype.

New heat-resistant fabric material is superior to the material on the prototype and on the other indicators (table 2).

The tests were performed in accordance with GOST 17616-74 on the device AASTP-1.

Comparative analysis of the claimed invention and prototype viable which enables you to make a conclusion on the conformity of the proposed solutions to the criteria of the invention of “novelty.”

The presence of distinctive features provides the ability to get a positive effect in terms of the creation of new heat-resistant woven material having a protective effect, preventing the accumulation of static electricity and thereby increase the security in the clothes of such material.

Since the research object of the invention in the patent and scientific literature revealed no solutions containing characteristics of the claimed invention, other than the prototype, you should make a conclusion on compliance of the proposed solutions to the criteria of the invention “significant differences”.

The use of the claimed invention in the textile industry provides to the invention conforms to the criterion “industrial applicability”.

1. Heat-resistant woven material containing basic and weft threads made of blended yarn containing polyaramid threads and wool fibres, characterized in that the filaments contain duck metallic thread with the following content of components in the material, wt.%:

Polyaramid threads fiber 48-75

Wool fiber 20-50

Metallized thread 2-5

2. Technolology Nickel-plated.



 

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FIELD: textile, paper.

SUBSTANCE: flexibility of the lattice, its shape stability and adhesion to the interfaced surfaces and materials are improved due to that one rapport of threads of the base contains 10 threads, one rapport of threads of the weft contains 26 threads. Each thread of the base in rapport has from 19% up to 65% of intersections above weft threads and respectively from 81% to 35% of weft intersections. Each thread contains sections in which it overlaps weft threads without formation of interlacing, these sections alternate with the sections which have weaves of the main thread with weft, forming three ledges from one side of the mesh and from another side - within one weave rapport. The weft threads 2'-6' and the weft threads 22'-26' are located above the first thread of the base, the weft threads 3'-5' and the weft threads 23'-25' are located above the second thread and the tenth thread of the base. The weft threads 23'-24' above which the first, second and tenth threads of the base do not form intersections, they are located at the same level among themselves.

EFFECT: improved operational characteristics of the mesh.

12 dwg, 1 tbl

FIELD: roads.

SUBSTANCE: invention relates to production of 3D woven frame meshes, which can be used as temporary road rolled out coating, as shock-absorbing coating of pipeline for protection against impact loads and reinforcing base for composite materials. Higher longitudinal flexibility of mesh is ensured by fact that it contains sections of warp threads that are woven with weft threads, and sections of warp threads overlap weft threads without formation of weaves. One rapport of threads of base contains 10 threads, one rapport of threads of woof contains 32 threads. Each thread base in rapport has 56 % locations of above weft threads and 44 % locations under weft threads. Alternating sections with small, with sections without weaves warp threads with weft threads forms twill weave 2/1 on four sections for each warp threads in the ornament on basis of except sixth, and on two sections for sixth warp threads.

EFFECT: sections of one thread are shifted relative to sections of adjacent threads.

1 cl, 12 dwg

FIELD: textile.

SUBSTANCE: invention relates to production of 3D woven frame meshes of a certain profile consisting of longitudinal warp threads and transverse weft threads. Higher lateral rigidity of the mesh is ensured by that the mesh comprises sections where the warp threads are woven with the weft threads and sections where the warp threads overlap the weft threads without forming weaves. One repetition comprises ten warp threads and ten weft threads. In one repetition by the weft overlappings and weaves of the weft threads from the first to the fourth are symmetrical to overlappings and weaves of the weft threads from the sixth to the ninth with the warp threads. Each warp thread in a repetition has locations above the weft threads within the range from 20 to 90 % of total amount of the weft threads in the repetition and has a number of locations under the weft thread within the range from 80 to 10 % of total amount of the weft threads in the repetition.

EFFECT: higher lateral rigidity.

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EFFECT: high weave density.

15 cl, 6 dwg, 1 tbl

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