Flame retardant fabric

 

Usage: the product - fabric sewing special service troops, as well as employees of the fire and fire professions. Combined yarn made of filaments or yarns made of fibers based on aromatic copolyamid twisted yarn from fiber-based oxadiazole. For the manufacture of composite yarns used floss or yarn of fibers based on aromatic copolyamid with a linear density of from 10 to 200 dtex and a yarn from fiber-based oxadiazole single, double or triple-changer with a linear density of from 13 to 200 Tex. The thread or yarn of one component and the other component yarn has a different twist in one direction, and a combined yarn has a twist in opposite directions. The fabric is produced with a density of not less than 80 g/m2when the ratio of components, wt.%: first component : second component is from 80:20 to 55:45. The technical result is an increase in fire-resistant and heat-shielding properties of the tissue and the ability to dyeability. 3 C.p. f-crystals, 1 table.

The invention relates to the textile industry and can be used to generate tissues that are intended for sewing special service troops,technical fabric containing heat-resistant polyparaphenyleneterephtalamide main and the weft yarn in the form of yarn from polyparaphenyleneterephtalamide fibers in patent RU 2103427, IPC D 03 D 15/00, publ. 27.01.1998.

Known fabric, having a good fireproof performance, however, does not have the ability to dyeability and printing dyes or pigments, which, in fact, is a necessary requirement for the implementation of special fabrics for military purposes.

From the patent RU 2019594, IPC D 03 D 15/12, publ. 15.09.1994 known heat-resistant protective fabric for making protective clothing for welders, metallurgy, fire fighters, racers, etc.

The fabric consists of a main heat-resistant filament yarn and weft threads of the yarn produced from cotton, wool, rayon, Dacron, oxalone (polyoxadiazole, taranovich fibers or mixtures thereof.

Protective fabric made in such a way that 80-95% of the main filament yarn, performs a protective function against fire or heat radiation, displayed on the front side and the weft yarn covers 80-95% of the reverse side of the fabric.

However, the known fabric because of the way the manufacture of the fabric does not have the ability to dyeability and printing.

From the patent RU 2129173. IPC D 03 seattlewa impregnation of the base and the duck from the combined two-component thread, consisting of integrated aramid yarn, twisted with hlopchatobumazhnoyi yarn.

As aramid yarn used filament-based polyparaphenyleneterephtalamide, polyparaphenyleneterephtalamide and their copolymers (prototype).

The disadvantage of this fabric is the lack of fire and sitosterolemia properties without special treatment.

The challenge which seeks the invention is to remedy these disadvantages and to obtain a technical result consists in the provision of high fire-resistant and heat-shielding properties and the ability of the fabric to the dyeability.

The above-mentioned technical result is achieved by the fact that the technical flame-retardant fabric contains the basis and duck combined two-component thread. The first component yarn is a thread or yarn of fibers based on aromatic copolyamid twisted with the second component of yarn consisting of a light-stabilized fiber-based oxadiazole, single, double or triple-changer.

The thread or yarn of the first component has a linear density in the range from 10 to 200 dtex, and a second component yarn has a linear density of from 13 to 200 copolyamide 80-45, yarn from fiber-based oxadiazole 20-55, and the fabric has a surface density of not less than 80 g/m2.

As raw material for the filament of the fibers based on aromatic copolyamid use triple aromatic copolyamide chemical structure: [-NH-Ar1-NHCO-Ar2-CO-]n[-NH-Ar3-NHCO-Ar2-CO-]mwhere n=0,050,4, m=0,60,95.

Ar1, AG2, AG3- divalent aromatic radicals paraprotein, and Ar1- heterocyclic radicalAr2is a radical of the formulaAr3is a radical of the formulaAs raw material for yarn from fiber-based oxadiazole use one of the following copolymers:
- copolymer of polyparaphenylene-1,3,4 - oxadiazole with poly-3,31-azobenzene-1,3,4-oxadiazoles at a ratio of from 99:1 to 97:3, respectively,
- copolymer of polyparaphenylene-1,3,4-oxadiazole with poly-4,41-azobenzene-1,3,4-oxadiazoles at a ratio of from 99:1 to 97:3, respectively,
- copolymer of polyparaphenylene-1,3,4-oxadiazole with polymethylene-1,3,4-oxadiazole when the ratio of components in mol.% from 90: 10 to 70:30 and poly-4,41-izobretatelem-1,3,4-oxadiazole when the ratio of components in mol.% from 90:10 to 70:30 copolymer of poly-4, -azobenzene-1,3,4-oxadiazoles and poly-3,31-azobenzene-11,3,4-oxadiazole, mol. % from 99:1 to 1:99 with a ratio of copolymers in mol.% from 99:1 to 97:3,
- copolymer of polyparaphenylene-1,3,4-oxadiazole and polymethylene-1,3,4-oxadiazole mol.% from 90:10 to 70:30 poly-3,31-azobenzene-1,3,4-oxadiazole when the ratio of the mol.% from 99:1 to 97:3,
- copolymer of polyparaphenylene-1,3,4-oxadiazole with copoly-4,4'-azobenzene-1,3,4-oxadiazoles and poly-3,31-azobenzene - 1,3,4-oxadiazole, mol.% from 1:99 to 99:1 when the ratio of components in mol.% from 99:1 to 97: 3.

The presence of tissue structure aromatic copolyamid 4,41-diamino-3,31-dichlorodiphenylmethane can significantly improve the flame retardant properties of the fabric, for example oxygen indexandand to reduce the cost of thread or yarn( trademark Rusar-Oncompared to other aramid fibers.

The presence in the tissue structure of another component, namely yarn from light-stabilized fiber-based oxadiazole (trademark Arselon-C) provides the ability of the fabric to the dyeability that allows you to create a camouflage pattern, and reduce the cost of the final izdeliy-200 Tex, and in most cases 25-40 Tex and twist from 50 turns/m, yarn from fiber-based oxadiazole has a linear density 13-200 Tex, and in most cases 25-50 Tex and twist 600 kr/m Yarn from fiber-based oxadiazole and thread or yarn of fibers based on aromatic copolyamid have unidirectional twist, and a two-component composite yarn has a twist opposite directions from 250 kr/m

The fabric is weighing not less than 80 g/m2when components are taken in the following ratio, wt.%:
The thread or yarn from fibers based on aromatic copolyamid - 80-45
Yarn of fibers based oxadiazol - 20-55
The invention is illustrated by the following examples.

Example 1. Technical fire-resistant plain weave fabric has a weight of 225 g/m2.

The fabric in the warp and weft are made of the combined filament linear density of 69 Tex with a twist of 240 cu/m, representing a thread of fibers based on aromatic copolyamid linear density of 40 Tex with a twist of 120 turns/m, twisted yarn from fiber-based oxadiazole linear density of 29.4 Tex twist 660 kr/m Ratio of raw materials in the combined thread: thread the economic parameters of the fabric shown in the table.

Technical fabric according to the invention is characterized by high strength, high fire resistance (oxygen index 30), high color fastness against light, dry and wet friction. To ensure water-, oil - and gazettelive properties of the fabric impregnated with the aqueous dispersion of organofluorine compounds.

Example 2. Technical flame-retardant twill fabric has a surface density of 248 g/m2.

The fabric in the warp and weft are made of the combined filament linear density of 90 dtex and a twist of 180 turns/m, representing a thread of fibers based on aromatic copolyamid linear density of 40 Tex with a twist of 120 turns/m, twisted yarn from fiber-based oxadiazole linear density 25/2 Tex with a twist 150 kr/m Ratio of raw materials in the combined yarn: the yarn from fibers based on aromatic copolyamid - 45%, yarn of fibers based oxadiazol - 55%. Physico-mechanical properties of the fabric shown in the table.

Technical fabric according to the invention is characterized by high strength, high fire resistance (oxygen index - 29), high color fastness against light, dry and wet Nicheskij connections.

Example 3. Technical flame-retardant twill fabric has a surface density of 243 g/m2.

The fabric in the warp and weft are made of the combined filament linear density of 69 Tex and a twist of 240 cu/m, representing a thread of fibers on the basis of aromatic copolyamid linear density of 40 Tex with a twist of 120 turns/m, twisted yarn from fiber-based oxadiazole linear density of 29.4 Tex twist 660 kr/m Ratio of raw materials in the combined yarn: the yarn from fibers based on aromatic copolyamid - 55%, the yarn from fiber-based oxadiazol - 45%. Physico-mechanical properties of the fabric shown in the table.

Technical fabric according to the invention is characterized by high strength, high fire resistance (oxygen index 30), high color fastness against light, dry and wet friction. To ensure water-, oil - and gazettelive properties of the fabric impregnated with the aqueous dispersion of organofluorine compounds.

Example 4. Technical fire-resistant plain weave fabric has a surface density of 233 g/m2.

The fabric in the warp and weft are made of the combined filament linear density of 90 dtex and a twist of 180 what rutki 120 kr/m twisted yarn from fiber-based oxadiazole linear density 25/2 Tex with a twist 150 kr/m Ratio of raw materials in the combined yarn: the yarn from fibers based on aromatic copolyamid - 45%, yarn of fibers based oxadiazol - 55%. Physico-mechanical properties of the fabric shown in the table.

Technical fabric according to the invention is characterized by high strength, high fire resistance ( oxygen index - 29), high color fastness against light, dry and wet friction. To ensure water-, oil - and gazettelive properties of the fabric impregnated with the aqueous dispersion of organofluorine compounds.

Example 5. Technical fire-resistant plain weave fabric has a weight of 162 g/m2.

The fabric in the warp and weft are made yarn with a linear density of 60 dtex and a twist of 300 turns/m, which is a yarn of fibers based on aromatic copolyamid linear density of 29.4 Tex twist 550 kr/m twisted yarn from fiber-based oxadiazole 29.4 Tex twist 660 kr/m Ratio of raw materials in the combined yarn: yarn of fibers based on aromatic copolyamid 80% of the yarn from fiber-based oxadiazol - 20%.

isoamsa high strength characteristics, high fire resistance (oxygen index - 35), high color fastness against light, dry and wet friction. To ensure water-, oil - and gazettelive properties of the fabric impregnated with the aqueous dispersion of organofluorine compounds.


Claims

1. Technical fire-resistant fabric containing basis and duck combined thread, the first component which is a complex thread or yarn from fibers based on aromatic copolyamid twisted with the second component of yarn consisting of a fiber-based oxadiazole, single, double or triple-changer, and the thread or yarn of the first component has a linear density in the range from 10 to 200 Tex, and the second yarn component from 13 to 200 Tex in the following ratio of components, threads, wt. %:
The thread or yarn from fibers based on aromatic copolyamid - 80-45
Yarn from fiber-based oxadiazol - 20-55
this fabric has a surface density of not less than 80 g/m2.

2. The fabric under item 1, in which the raw material for the filament of the fibers based on aromatic polyamide used triple aromatic copolyamide following chemical structure:,4; m= 0,60,95;
Ar1, AG2, AG3- divalent aromatic radicals paraprotein, and Ar1- heterocyclic radical of the formula

Ar2is a radical of the formula

Ar3is a radical of the formula

3. The fabric under item 1, in which the raw material for yarn from fiber-based oxadiazole use one of the following copolymer: copolymer of polyparaphenylene-1,3,4 - oxadiazole with poly-3,3'-azobenzene-1,3,4-oxadiazoles at a ratio of from 99: 1 to 97: 3, respectively, copolymer of polyparaphenylene-1,3,4-oxadiazole with poly-4,4'-azobenzene-1,3,4-oxadiazoles at a ratio of from 99: 1 to 97: 3, respectively, copolymer of polyparaphenylene-1,3,4-oxadiazole with polymethylene-1,3,4-oxadiazole when the ratio of the components, mol. % from 90: 10 to 70: 30 and poly-4,4'-azobenzene-1,3,4-oxadiazole ratio, mol. %, from 99: 1 to 97: 3, copolymer of polyparaphenylene-1,3,4-oxadiazole and polymethylene-1,3,4-oxadiazole when the ratio of the components, mol. %, from 90: 10 to 70: 30 copolymer of poly-4-azobenzene-1,3,4-oxadiazoles and poly-3,3'-azobenzene-1,3,4-oxadiazole, mol. %, from 99: 1 to 1: 99 with a ratio of copolymers, mol. %, from 99: 1 to 97: 3, floor copolymer what adinazolam at a ratio of mol. %, from 99: 1 to 97: 3, copolymer of polyparaphenylene-1,3,4-oxadiazole with copoly-4,4'-azobenzol-1,3,4-oxadiazoles and poly-3,3'-azobenzene-1,3,4-oxadiazole, mol. %, from 1: 99 to 99: 1 when the ratio of the components, mol. % from 99: 1 to 97: 3.

4. The fabric according to any one of paragraphs. 1-3, in which the thread or yarn of one component and the other component yarn has a different twist in one direction, while the composite yarn has a twist in opposite directions.

 

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