Abstract: When the conventional ultra-fine high-density chemical fiber fabrics are gradually out of date, the concept of colored weaving is introduced into this field, so as to further enrich the color changes of fabrics,and meet the changing market demands. Taking 20 D polyamide DTY as an example, the paper discusses the application of yarn-dyed technology in down-proof fabrics without liner and sun protection clothing fabrics,so as to provide a reference for the development of ultra-fine high-density chemical fiber fabrics.

Key words: ultra-fine and high density; colored weaving; polyamide DTY; fabric development