RU2092202C1 - Material for heat-protecting clothes - Google Patents

Abstract

FIELD: heat-protecting garments. SUBSTANCE: material for heat-protecting clothes has fibrous layer and internal copper layers subsequently applied to it at both sides. Applied to copper layer is main layer and additional layer of heat-reflecting metal being one of following: aluminium, nickel, chromium or iridium. EFFECT: high efficiency.

Description

 The invention relates to the production of protective materials with high reflectivity, intended for the manufacture of clothing for protection against exposure to thermal radiation and high temperature during fire fighting and emergency rescue operations.

 Known heat and flame retardant fabric for protective clothing made of thermally stabilized polyacrylonitrile and polyaramide fibers and a metal layer covering the fabric (1).

 Knitted fabric for a heat-insulating suit, coated with a layer of aluminum from the outside, having a wool insulating lining (2).

 Known materials for protective clothing and a heat-protective suit provide protection for a person in a certain temperature-time range, however, the time of their protective action due to rapid heating in the high temperature zone is not enough to perform the required amount of work when fighting fires and conducting emergency rescue operations.

 Known clothing in the form of overalls for protection against flame. The material for this garment consists of a fibrous layer and a main heat-reflecting layer (3). Clothing provides protection for a person in a certain temperature-time range, but has a large mass, which is its significant drawback that limits its use.

 The closest analogue of the claimed invention is a material for heat-protective clothing, containing a fibrous layer, the inner layers located on both sides of it and in contact with the outer surfaces of the inner layers of the main and additional reflective layers of metal (4). In the known material, the intermediate layers are made of asbestos, which leads to insufficient thermal insulation at high temperatures.

 The technical result achieved in the invention is to improve the heat-shielding properties of the material. To achieve this technical result, in the material for heat-protective clothing containing a fibrous layer, the inner layers located on both sides of it and in contact with the outer surfaces of the inner layers are the main and additional reflective layers of metal, the inner layers are made of copper, and the main and additional reflective layers made of aluminum or nickel, or chromium, or iridium.

 In the proposed material, the fibrous layer is made in the form of fabric from organic and / or inorganic solid or hollow filaments.

 The layers of copper are deposited by the electrochemical method, which ensures good bonding of the metal coating with the fabric and good adhesion when applying layers of metal with high heat-reflecting ability (aluminum, nickel, chromium, iridium) by any known method: electrochemical, vacuum deposition, finely dispersed deposition of molten metal.

 The invention provides a significant increase in protective properties and weight reduction of material and heat-protective clothing.

 The invention is illustrated by the following examples of its implementation.

 Example 1. Material for heat-protective clothing is obtained by sequentially applying layers of copper and layers of aluminum on both sides of the fibrous layer, which is a fabric of phenyl filaments.

 Example 2. Material for heat-protective clothing is obtained analogously to example 1 with the only difference that they use fabric from CBM threads.

 Example 3. Material for heat-protective clothing is obtained analogously to example 1 with the only difference that they use fabric from arimide threads.

 Example 4. Material for heat-protective clothing is obtained by successively applying layers of copper and layers of nickel on both sides of the fibrous layer, which is a fabric of arimide yarns in the base and glass yarns in the weft.

 Example 5. Material for heat-protective clothing is obtained analogously to example 4 with the only difference being that a fabric of glass fibers is used.

 Example 6. Material for heat-insulating clothing is obtained analogously to example 4 with the only difference being that fabric from glass hollow yarns is used.

 Example 7. Material for heat-protective clothing is obtained by sequentially applying layers of copper and layers of chromium on both sides of the fibrous layer, which is a fabric of silica filaments.

 Example 8. Material for heat-protective clothing is obtained analogously to example 7 with the only difference being that a fabric of basalt yarns is used.

 Example 9. Material for heat-protective clothing is obtained by sequentially applying layers of copper and layers of iridium on both sides of the fibrous layer, which is a fabric of carbon fibers.

 The use of the proposed material in protective clothing leads to an increase in the protective effect and a decrease in the mass of the material and clothing.

Claims (1)

 Material for heat-protective clothing, containing a fibrous layer, inner layers located on both sides of it and in contact with the outer surfaces of the inner layers of the main and additional reflective layers of metal, characterized in that the inner layers are made of copper, and the main and additional reflective layers of aluminum or nickel or chromium or iridium.