Polyimide flame-retardant hook-and-loop fastener for fireman fire-extinguishing protective garment and manufacturing method thereof

Abstract

The invention relates to a polyimide flame-retardant hook-and-loop fastener for a fireman fire-extinguishing protective garment. The flame-retardant hook-and-loop fastener is prepared by interweaving polyimide filaments with proper specifications. The flame-retardant hook-and-loop fastener can resist the temperature of 260 DEG C and cannot be molten or carbonized during combustion, the afterflame time of the hook-and-loop fastener does not exceed 2 seconds during combustion, and no molten drops exist during combustion. The invention further discloses a manufacturing method polyimide flame-retardant hook-and-loop fastener for a fireman fire-extinguishing protective garment. The manufacturing method comprises the steps of raw material preparation, twisting and shaping processing and hook-and-loop fastener semi-finished product preparation. By utilizing the characteristics that polyimide (PI) resists high temperature of 300 DEG C, has a permanent flame-retardant function and is not molten or carbonized during combustion, the polyimide (PI) is used as a main body material, and the rough surface of the polyimide hook-and-loop fastener is prepared by proportionally interweaving warp yarns and surface yarns, and meets the standard requirements of the XF10-2014 fireman fire-fighting protective garment.

Description

technical field [0001] The invention relates to the field of fire-fighting equipment accessories, in particular to a polyimide flame-retardant Velcro for firefighters' fire-fighting and protective clothing, and a method for manufacturing the polyimide flame-retardant Velcro for fire-fighting and protective clothing. Background technique [0002] In the prior art, there are mainly the following types of flame-retardant Velcro: [0003] 1. The flame-retardant Velcro produced by polyester filament or nylon filament and polyester filament will melt when exposed to open flames, accompanied by black smoke and pungent smell; it will soften when encountering a high temperature of 180°C and a high temperature of 260°C Melting phenomenon occurs when it is used, which does not meet the standard requirements of "XF10-2014 Firefighter Fire Fighting Protective Clothing" [0004] 2. Aramid Velcro, due to technological reasons, the aramid yarn used in aramid Velcro is aramid spun yarn, the...

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Problems solved by technology

[0003] 1. The flame-retardant hook and loop stickers produced by polyester filament or nylon filament and polyester filament will melt when exposed to open flames, accompanied by black smoke and a pungent taste; soften when encountering a high temperature of 180°C and high temperature of 260°C Melting phenomenon occurs when it is used, which does not meet the standard requirements of "XF10-2014 Firefighter Fire Fighting Protective Clothing"

[0004] 2. Aramid Velcro, due to technological reasons, the aramid yarn used in aramid Velcro is aramid spun yarn, the wool surface is collapsed and shapeless, and the hair height is difficult to control; Low, softening problem occurs at 140°C, and it will melt when burning, which does not meet the standard requirements

[0005] 3. The existing PPS filament Velcro, coated with silica gel, is prone to uneven coating, and the flame retardant performance decreases after washing, or the amount of coated silica gel is insufficient, which will easily lead to unqualified continuous burning time during combustion, and there are also cases where the amount of silica gel coated is too much It is prone to the problem of molten dripping, which does not meet the standard requirements of "Firefighters Fire Fighting Protective Clothing XF10-2014"

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