Abstract:

The moisture absorption and moisture permeability of the yarn are important factors influencing the fabric comfort. The moisture absorption and moisture permeability properties of hemp, cotton, hemp/cotton and hemp/cotton/modal were investigated under different temperature and relative humidity. The results showed that the capillary effect of the hemp was the best, up to 11.0 cm, indicated the hemp yarn had good moisture absorption. Under the same temperature and humidity, when the moisture absorption reached balance, the regain percentage of cotton/hemp/modal mixed yarn was higher than other three yarns whose regain percentage was close; meanwhile, the moisture absorption and permeability speed of cotton/hemp/modal mixed yarn was the fastest, and its diminishing speed of moisture absorption and permeability was also the fastest; the moisture absorption and permeability of hemp yarn were better than those of cotton and cotton/hemp.