The influence of roller temperature and treatment rate of fabrics of various surface densities based on a mixture of poly(ethylene terephthalate) and bicomponent fibers on the air permeability of the materials was investigated. The permeability decreased for fabrics with surface densities from 0.15 to 0.25 kg/m² for various roller temperatures if the treatment rate was decreased from 10 to 2-4 m/min although it began to increase if the rate was reduced further. The permeability of fabrics with surface density 0.4 kg/m² decreased constantly if the treatment rate at various roller temperatures was decreased. The dependence of the permeability on the structure of a modified layer of fabric in which the fibers reoriented with increasing filtration resistance during the treatment was determined from the relationship between the change of permeability and porosity of treated materials. Defects in the layer with increased permeability appeared for fabrics of low surface density at slow treatment rates.

研究了基于聚对苯二甲酸乙二醇酯和双组分纤维的混合物的各种表面密度织物的辊温度和处理速率对材料透气性的影响。如果处理速率从10降低到2-4 m / min，则在各种滚筒温度下，表面密度从0.15到0.25 kg / m ^2的织物的渗透性会降低，但如果进一步降低，渗透率会开始增加。表面密度为0.4 kg / m ²的织物的渗透性如果降低各种滚筒温度下的处理速度，则持续降低。渗透率对织物改性层结构的依赖关系，其中改性纤维在处理过程中随着过滤阻力的增加而重新取向，这是由渗透率变化与被处理材料的孔隙率之间的关系确定的。对于低表面密度的织物，在缓慢的处理速率下，渗透性增加的层中出现了缺陷。