RU2228398C1 - Fencer fabric - Google Patents

Abstract

FIELD: textile industry, in particular, fabric for manufacture of special-purpose articles, such as sportive vests for fencing with the use of electric foils and electric sabers. SUBSTANCE: fencer fabric is executed by fine-patterned weaving and includes two warp and weft thread systems, each comprising threads of chemical filaments for forming of background and metallic threads for forming of current-conducting network. Fabric weft repeat comprises 8-10 threads including 2 metallic threads, metallic warp threads being arranged in pairs, each being interlaced with weft threads within repeat in accordance with following dependence: (0,5R_w+1)/0,5(R_w-1), in offset relationship of 0,5R_w, with respect to one another, where R_w is fabric weft repeat. Fabric weft repeat comprises 4-8 threads, including 1 or 2 single metallic threads arranged in alternation with each 2 or 3 background weft threads so that each metallic weft thread overlaps one of two metallic warp threads and is overlapped by second metallic warp thread within full weaving repeat. EFFECT: low flexural rigidity of fabric and provision for keeping of optimal surface electrical conduction. 2 cl, 3 dwg, 1 tbl

Description

The invention relates to the textile industry and can be used for the manufacture of special products, mainly for sewing sports jackets for fencing on electric rappers and electric sabers.

Fabrics for tailoring sports jackets for fencing on electric foils and electric sabers should have the following performance indicators: sufficient surface conductivity (not more than 5.0 Ohms) with an optimal content of electrically conductive tinsel threads (not more than 30%), minimum surface density (up to 200 ± 10 g / m ² ) and low bending stiffness (not more than 4 gf / cm).

Known fabric “Mail” used for protective clothing of fencers. The fabric, compacted to 120-170% filling, is made of finely knit weave with a six-thread rapport on the base and weft. Moreover, within the rapport, each warp and weft has one long three-thread overlap and three short one-thread overlaps. Each three-thread overlap is continued - three short and one-thread overlaps, after three short one-thread overlaps, one long three-thread overlap follows, each time forming a sequence of overlaps equal to 3/1 + 1/1 or 1/3 + 1/1 [RF Patent No. 2137868 by cl . D 03 D 15/00. Publ. 09/20/1999. Bull. No. 26].

The absence on the surface of the “Chainmail” fabric of an electrically conductive net makes it unsuitable for sewing sports jackets for fencing on electric foils and electric sabers.

The closest in technical essence and the achieved result is fencing fabric made with fine-knit weave with rapport 18/6 and containing two systems of warp and weft threads, each of which includes chemical (viscose) threads with a linear density of 18.5 tex x 2, fabrics forming the background (60%), and tinsel filaments with a linear density of 45.4 tex, forming an electrically conductive network (40%). The density of the fabric on the basis is in the range of 25.8-26.8 n / cm, for the weft 26.7-28.3 n / cm. Each 18-thread repeat fabric contains 10 tinsel threads, and tinsel weft threads are arranged in pairs, each of which is repeated every 5 weft repeats, forming a conductive cell with a diagonal of 7.32 mm and an area of 5.53 mm ² . The surface density of the fabric is 231 ± 12 g / m ² [USSR Author's Certificate No. 1656020 according to class. D 03 D 15/00, 15/02, 1/00, A 63 V 69/02. Publ. 06/15/91, bull. No. 22].

The main disadvantages of this fencing fabric are the high percentage of metal-containing tinsel threads (40%) and the resulting high bending stiffness of the fabric (up to 4.5 gf / cm) and high surface density (231 ± 12 g / m ² ).

The technical result achieved in the claimed invention is to create a fabric with high strength and optimal electrical conductivity.

This goal is achieved by the fact that the proposed fencing fabric is made of finely knit weave and contains two systems of warp and weft threads, each of which includes threads of chemical fibers that form the background, and tinsel threads that form an electrically conductive network.

The fabric rapport on the base contains from 8 to 10 threads, including 2 tinsel threads, and the duck rapport contains from 4 to 8 threads, including 1 or 2 tinsel threads, located every 2 or 3 background weft threads.

The tinsel warp threads are arranged in pairs, each of which, within the rapport, is interwoven with weft threads according to the following mathematical relationship:

(0.5 R _y +1) / 0.5 (R _y -1),

with a shift relative to each other equal to 0.5 R _y , where R _y - rapport of fabric in the weft.

Within a full rapport of weaving, each single tinsel weft thread overlaps one of the two main tinsel threads and overlaps the second main tinsel thread. The fractional embedding of tinsel threads is 20-30% of the surface density equal to 200 ± 10 g / m ² . In this case, the main and weft tinsel threads form electrically conductive cells with an area of 4.3-5.2 mm ² and a diagonal size of 4.3-5.2 mm on the front surface of the fabric.

The surface filling of the tissue is 83.89-89.61%, and the porosity is in the range of 10.39-16.14%.

The inventive fabric structure allows you to get fencing fabric with a significantly lower bending stiffness (not more than 4.0 g / cm) and a minimum surface density (200 ± 10 g / m ² ) while maintaining sufficient surface conductivity (not more than 5.0 Ohms )

Figure 1 shows the pattern of weaving fencing fabric with a rapport of 10 × 4 threads, which on the basis contains 8 chemical background and 2 tinsel threads, and for the duck 3 background and 1 tinsel thread.

Figure 2 shows the pattern of weaving fencing fabric with a rapport of 8 × 6 threads, which on the basis contains 6 background chemical and 2 tinsel threads, and for the duck 4 background and 2 tinsel threads.

Figure 3 shows the pattern of weaving fencing fabric with a rapport of 10 × 8 threads, which on the basis contains 8 chemical background and 2 tinsel threads, and for the duck - 6 background and 2 tinsel threads.

In all 3 figures, the rapports of the main and weft background threads are denoted respectively by Ф _о and Ф _у , and the rapports of the electrically conductive tinsel warp and weft threads are indicated by М _о and M _y, respectively. Weft tinsel ceilings on the front of the fencing fabric are marked with “asterisks”.

The proposed fabric is made of chemical, mainly synthetic, yarns on two-shuttle looms or micro-shuttle looms of the STB type, equipped with a two-color weft feed mechanism.

To confirm the technical result of the invention, experimental fabrics of the proposed design were made. The main characteristics of the fabricated fabrics in comparison with the characteristics of the fencing fabric of the prototype are shown in table 1. The data in table 1 show that the claimed fabric in comparison with the fabric of the prototype with the equality of surface electrical resistance not exceeding 5.0 Ohm, has the following advantages in terms of operational properties: lower surface density (210 ± 10 g / m ² versus 231 ± 12 g / m ² for the prototype fabric), low content of electrically conductive tinsel filaments (not more than 30% against 40% for the prototype fabric) and low bending strength (not more than 4.0 gf / cm at 4.5 gf / cm for the prototype).

Sports jackets made of patentable fabric are lighter, softer and more comfortable than jackets made of prototype fabric.

Claims (2)

1. Fencing fabric, made by fine-knit weaving and containing two systems of warp and weft threads, each of which includes threads from chemical fibers that form the background, and tinsel threads that form an electrically conductive network, characterized in that the rapport of the base fabric contains 8 -10 threads, including 2 tinsel, while the tinsel main threads are arranged in pairs, each of which is interwoven with weft threads within the rapport according to the following mathematical dependence: (0.5 R _y +1) / 0.5 (R _y -1) with a shift relative to each other equal to 0.5 R _y , where R _y is the weft fabric repeat, and weft fabric rapport contains from 4 to 8 threads, including single 1 or 2 tinsel, located every 2 or 3 background weft threads, so that within the full weave rapport, each tinsel weft thread overlaps one of the two tinsel warp threads and overlaps with the second tinsel main thread. 2. Fencing fabric according to claim 1, characterized in that the tinsel threads form electrically conductive cells with an area of 4.3-5.2 mm ² and a diagonal size of 4.3-5.2 mm on the front surface of the fabric.

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