Manufacturing and Finishing of Multi-layered Nonwoven for Artificial Suede Using Elastic Polyester Microfiber(IV) -Dyeing and Mechanical Properties of Multi-layered Nonwoven Using Elastic Islands-in-a-sea fibers-

An environmentally friendly artificial suede manufacturing procedure is established to improve the working condition, to lower the manufacturing cost and to make quality control easier. It binds fibers through hot melt pressing of PEE microfibers in the CDP/PEE islands-in-a-sea fiber eliminating the conventional manufacturing processes such as polyurethane impregnation, PVA treatment and slicing. The dyeing characteristic of multi-layered suede, whose K/S value was 12.4, was superior to the reference suede (K/S value: 9.6). Dyeing fastness of the nonwoven was generally superior to that of the reference suede. Especially wet abrasion and thermomigration were 1~2 grade higher than those .of the reference suede. The specifications of the environmentally friendly artificial suede after finishing were: weight; 190 g/$m^2$, thickness; 0.62 mm, fibrous density; 0.32 g/$\textrm{cm}^2$. It was lighter, thinner and more denser than those of the reference suede. The tensile strength, the tearing strength and the stretch recovery rate were comparable to the reference or a little better; the stiffness, the drape property and the anti-abrasion were excellent; the elongation and the compression recovery rate were somewhat unsatisfactory.

폴리에스터계 탄성 극세사를 이용한 인조스웨드용 부직포의 제조와 가공(IV) -탄성 해도사 혼합 다층 부직포의 염색성 및 물성-