RU2127781C1 - Knitted article - Google Patents

Abstract

FIELD: textile industry, in particular, production of gloves for protecting worker from high-voltage electric shock. SUBSTANCE: glove has working portion and cuff portion. Working portion is manufactured from thread with core formed from at least one tinsel filament having linear density of at least 50 tex, at least one carbon filament having linear density of at least 100 tex, and at least one aramide filament. Core filaments are arranged in parallel one with another. Aramide filaments are twisted around core in two opposite directions at twisting extent of at least 10 coils/cm. Glove cuff portion is manufactured from tinsel thread of at least six ply and has height of at least 10 cm. EFFECT: wider operational capabilities, simplified construction of thread and improved quality of article. 2 cl, 2 dwg

Description

 The invention relates to knitwear, for example gloves intended for use in protective clothing to exclude harmful effects on a person of electric fields created by electrical installations of extra-high voltage.

 Known glove made of dielectric material, additionally contains an inner glove, also made of dielectric material and covered with a metal shielding mesh (AS USSR N 418170, class A 41 D 13/08, 1974).

 Known glove made of yarn containing a core of one flexible wire with a coating and from at least one fibrous thread wound on it in a spiral. The core is formed from a plurality of parallel stainless steel filaments and may also contain an additional fibrous thread, for example, an aramid thread, the core is twisted in a spiral with at least one complex thread (USSR Patent N 1369661, CL A 41 D 13/10, published 1983 - Prototype).

 The disadvantages of these technical solutions are in the first case, the low-tech manufacturing of such gloves in terms of covering the inner gloves with a shielding net, and in the second, the low ability of the yarn from which the gloves are connected to form electrically conductive chains between any two points in the finished product.

 An object of the invention is to improve the operational properties of the product. The problem is solved due to the fact that in a knitted product, for example, a glove consisting of a working part and a cuff, the working part is made of a combined thread containing a core, of at least one metal-containing thread and at least one aramid complex thread, and located in parallel , and wrapped with synthetic yarns in two opposite directions, according to the proposal, the core of the yarn further comprises at least one carbon multifilament yarn with a linear density of at least 100 tex, at least 50 tex linear density tinsel is used as the metal-containing yarn, wherein the wrap yarns in one and the other directions are the same and are made of aramid yarn, the wrap is at least 10 turns / cm. The cuff of the glove is made of tinsel yarn of at least 6 additions and a height of at least 10 mm.

 As an aramid yarn, yarn based on polybenzimidazole terephthalamide or copolybenzimidazole terephthalamide or copolyparaphenylene terephthalamide is used.

 Figure 1 presents the glove, a vertical section, figure 2 - the structure of the thread from which the glove is made.

 The protective glove contains the working part - 1 and the cuff of the glove - 2.

 The working part of the glove is made of a composite yarn, figure 2, containing the core - 3 of at least one tinsel yarn - 4 with a linear density of at least 50 tex, at least one carbon complex yarn - 5 linear density of at least 100 tex and at least one aramid complex yarn - 6 linear density of at least 29 tex. The threads are parallel. The core - 3 is twisted in two opposite directions by aramid threads - 7 and 8, the degree of wrapping is at least 10 turns / cm. Glove cuff - 2 is made only of tinsel yarn of at least 6 additions with a height of at least 10 mm.

 The proposed knitwear has high abrasion resistance, as the combined thread provides up to 860 abrasion cycles. The introduction of carbon and tinsel yarns into the combined yarn increases the ability to form electrically conductive chains between any two points of the finished product, while the electrical resistance is not more than 30 Ohms. Running the glove cuff only out of tinsel yarn facilitates the electrical connection of the glove itself and the main protective suit.

Claims (2)

 1. A knitted product, such as a glove, consisting of a working part and a cuff, in which the working part is made of a combination thread containing a core of at least one metal-containing thread and at least one aramid multifilament thread, arranged in parallel, wrapped with synthetic threads in two opposite directions, characterized in that the core of the yarn further comprises at least one carbon complex yarn of linear density of at least 100 tex, and as a metal-containing the yarn uses a tinsel yarn of linear density of at least 50 tex, and the wrap yarns in one and the other directions are the same and are made of aramid multifilament yarn, and the degree of wrap is at least 10 turns / cm, while the glove cuffs are made of tinsel yarn in at least 6 additions and a height of at least 10 mm.  2. The product according to claim 1, characterized in that as the aramid complex filaments, filaments based on polybenzimidazole terephthalamide or copolybenzimidazole terephthalamide or copolyparaphenylene terephthalamide are used.

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