Method for improving water permeability resistance performance of outer layer of fire protective clothing and recovering original appearance of outer layer of fire protective clothing

Abstract

The invention relates to a method for improving the water permeability resistance of an outer layer of fire protective clothing and recovering the original appearance of the outer layer of the fire protective clothing. According to the method, strong glue spray processing, lustering wax spray processing and first time waterproof spray processing are carried out on the outer layer of the fire protective clothing, the processed outer layer of the fire protective clothing maintains high surficial humidity resistance (spray rating is larger than or equal to four), higher water permeability resistance is provided (hydrostatic pressure reaches 5-8kPa), the icing resistance capacity is improved, and working efficiency of firefighters under low-temperature environment in cold region is guaranteed. Cleaning agent processing is carried out on the outer layer of the fire protective clothing by using the method continuously to remove sprayed glue, sprayed wax and sprayed agents effectively, finally second time waterproof spray processing is carried out to recover the surficial humidity resistance of the fire protective clothing, the original appearance of the fire protective clothing is recovered thereby, and normal use of the fire protective clothing by the firefighters under non-low-temperature environments can be guaranteed.

Description

technical field [0001] The invention relates to the treatment of the outer layer of fire extinguishing protective clothing in the field of fire safety, in particular to a method for improving the water resistance of the outer layer of the fire extinguishing protective clothing and restoring the original appearance of the outer layer. 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. Relevant standards require that the outer layer has a certain surface moisture resistance (wet level ≥ 3), but there is no requirement for the water resistance of the outer layer, but only for the water resistance of the waterproof and breathable layer. Moisture is also not required. In the process of actual use, the water sprayed by the fire hose can easily splash on the outer layer of t...

AI Technical Summary

Problems solved by technology

In the process of actual use, the water sprayed by the fire hose can easily splash on the outer layer of the firefighter's fire-fighting protective clothing after reflection or refraction, or even penetrate the outer layer and enter the waterproof and breathable layer. The surface of the waterproof and breathable layer flows downward, but in the low temperature environment, the water will form ice balls, and even turn the protective clothing into an ice shell, which will affect the combat efficiency.