The fabric for the substrate of the upper layer of flame retardant suit

 

(57) Abstract:

The invention relates to the textile industry, in particular to the tissues for the substrate of the upper layer of flame retardant suit for workers of the emergency services. The technical result - the creation of new tissue with high dimensional stability by increasing the density of the tissue and its tactilebosch when reducing the flow rate of the polymer, going to form a watertight film on the inner surface of the fabric. The fabric for the substrate of the upper layer of flame retardant suit contains the basic and the weft yarn in the form of twisted yarns based on heat-resistant polymers made plain weaves, according to the invention is performed with the ratio of the density of weave 1,08-1,45 has a twist yarns on a duck 130-180 kr/m and twist yarns on the basis of 100-120 kr/m when the ratio of the number of threads in the weft and the basis of <1.

The invention relates to the textile industry, in particular to the tissues for the substrate of the upper layer of flame retardant suit for workers of the emergency services.

Known for high strength fabric with low Flammability, containing twisted composite yarn consisting of filament yarn and yarn is CNA yarn made of fire-protected viscose fibers. (Proceedings of VNIIPO, M., Createrepo, 1987, S. 13-20).

The disadvantages of the known tissue should include insufficient tensile strength and elongation at break on a duck, increased razvivaemosti threads in the seam along the weft. In addition, the specific smell of the fabric, due to the peculiarities of the technological process of manufacturing a fire-retardant viscose fibers, which is the primary component fabric.

Famous fabric of aramid core and filling threads with volumetric filling 58,5 - 63,0%. The fabric is designed to perception as tensile and anti-friction loads and has a small residual deformations (USSR author's certificate 1217947, class D 03 D 15/00, 1984).

However, its disadvantages include a high rigidity and low shimonthebest deteriorating operational properties of thermal protection suits on the basis of such tissue.

Known fabric for the substrate of the upper layer of flame retardant suit, containing the main and the weft yarn in the form of twisted yarns based on heat-resistant polymers made plain weaves (EN 2064984, MPK7 D 03 D 15/12, 1996-prototype). This fabric is closest to the invention is to create a new fabric for the substrate of the upper layer of flame retardant suit with high dimensional stability by increasing the density of the tissue and its tactilebosch when reducing the flow rate of the polymer, going to form a watertight film on the inner surface of the fabric.

The problem is solved in that the fabric for the substrate of the upper layer of flame retardant suit, containing the main and the weft yarn in the form of twisted yarns based on heat-resistant polymers made plain weaves, according to the invention is performed with the ratio of the density of weave 1,08-1,45 has a twist yarns on a duck 130-180 kr/m and twist yarns on the basis of 100-120 kr/m when the ratio of the number of threads in the weft and the basis of <1.

Example 1.

In the fabric, going to the education of the substrate of the upper layer of flame retardant suit, use a uniform yarn on the basis of aramid fibers with a twist on a duck 130 kr/m and on the basis of 100 cu/m of the Number of yarns per 10 cm in the warp - 162, duck - 150 (coefficient uplatneni the flame retardant suit, use uniform yarn on the basis of aramid fibers with a twist on a duck 150 kr/m and on the basis of 110 cu/m of the Number of yarns per 10 cm in the warp - 202, duck - 180 (the ratio of the density of weave -1,12).

Example 3.

In the fabric, going to the education of the substrate of the upper layer of flame retardant suit, use a uniform yarn on the basis of aramid fibers with a twist on a duck 180 turns/m and on the basis of 120 cu/m of the Number of yarns per 10 cm in the warp - 202, duck - 140 (the ratio of the density of the weave of-1.45).

Comparative analysis of the claimed invention and prototype reveals the presence of distinctive features in the claimed tissue compared with the closest analogue that allows 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 a new fabric for the substrate of the upper layer of flame retardant suit with high dimensional stability by increasing the density of the tissue and its tactilebosch when reducing the flow rate of the polymer, going to form a watertight film on the inner surface of the fabric.

Pascalc is containing a series of signs of the claimed invention, different from the prototype, it must be concluded that the claimed invention meets the criterion of "substantial differences".

The use of the claimed invention in the textile industry provides him with the criterion of "industrial applicability".

The fabric for the substrate of the upper layer of flame retardant suit, containing the main and the weft yarn in the form of twisted yarns based on heat-resistant polymers made plain weaves, characterized in that the coefficient of the density of weave 1,08-1,45, with a twist yarns on a duck 130-180 kr/m and twist yarns on the basis of 100-120 kr/m when the ratio of the number of threads in the weft and the basis of < 1.

 

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