Abstract:

In order to analyze the heat-moisture performance of cool polyamide filament, the basic performance such as fiber fineness unevenness, tensile performance, friction performance, shrinkage rate in boiling water and oil content were tested and analyzed first. Based on this, the thermal performance, cooling performance, moisture absorption and liberation performance of cool polyamide filament were studied respectively by differential scanning calorimeter, thermal gravimeter analysis, cooling test, moisture absorption and liberation test on the basis of basic performance test and analysis. The results show that the fineness unevenness, tensile performance and friction performance of cool polyamide filament is relatively poor compared with ordinary polyamide filament, but the shrinkage rate in boiling water and oil content are close to ordinary polyamide filament. Differential scanning calorimetry curve of cool polyamide filament has some difference with ordinary polyamide filament. During the process of weaving, dyeing and finishing, the control temperature of cool polyamide filament should be lower than 370 ℃. The cooling performance, moisture absorption and liberation performance of cool polyamide filament are better than ordinary polyamide filament.