Outer-layer composite fabric with waterproof and moisture-permeable film of firefighting protective garment and technique thereof

Abstract

The invention relates to an outer-layer composite fabric with a waterproof and moisture-permeable film of a firefighting protective garment and a technique thereof. The composite fabric is prepared through compound treatment of an aramid fabric, a hot melt adhesive and the waterproof and moisture-permeable film. The technique comprises the following steps: carrying out plasma treatment on the surface of the aramid fabric by virtue of corona discharging; carrying out plasma treatment on the surface of the film by virtue of corona discharging; coating the hot melt adhesive; laminating the waterproof and moisture-permeable film and the aramid fabric with the hot melt adhesive; drying; coiling and curing the fabric subjected to the compound treatment; trimming; coiling again and finally packing to obtain a finished product. According to inspection, related parameters of the treated composite fabric can meet the technical requirement; the developed composite fabric can be used as a replacement of the outer layer of the firemen protection equipment; not only is the water prevented from entering the waterproof and moisture permeable film from the outer layer, but also the normal sweating and moisture permeation of a fireman is guaranteed, so that the operational efficiency of the fireman in a low-temperature environment is improved; the technique is simple and efficient and has high market popularization value.

Description

technical field [0001] The invention relates to fire-extinguishing protective clothing, in particular to a composite fabric on the outer layer of the fire-extinguishing protective clothing with a waterproof and moisture-permeable membrane and its technology. Background technique [0002] Fire-fighting protective clothing can protect firefighters from flames and radiant heat. Fire-fighting protective clothing includes an outer layer, a waterproof and breathable layer, a thermal insulation layer and a comfort layer. The aramid fiber fabric used in the preparation of the outer layer itself has flame retardancy (continued burning time in the warp and weft direction ≤ 2s, damage length in the warp and weft direction ≤ 100mm), surface moisture resistance (water staining level ≥ 3), and breaking strength (breaking strength in the warp direction ≥ 650N , weft breaking strength ≥ 650N), tearing strength (longitudinal tearing strength ≥ 100N, weft tearing strength ≥ 100N) and other re...

AI Technical Summary

Problems solved by technology

The waterproof and breathable layer can prevent water from entering the insulation layer or the comfort layer. At the same time, the water will flow down along the surface of the waterproof and breathable layer in normal temperature environment, but in the low temperature environment, the water will flow on the inner surface of the outer layer and the outer layer. The surface and the outer surface of the waterproof and breathable layer form ice ballast, and even cause the outer layer to form an ice shell or ice armor, which seriously affects combat efficiency