Abstract
Dyeability and miscellaneous properties of nylon 3 fibers were investigated, and following results were obtained. Nylon 3 fibers have good dyeability with acid dyeing metal-complex dyes, and the degrees of color fastness are also good. Nylon 3 fibers have some different properties from those of other ordinary polyamides. The glass transition temperature of nylon 3 fibers is higher by about 70°C than ordinary aliphatic polyamide fibers. The sorption behavior of nylon 3 fibers is similar to that of silk. Its modulus and birefringence are also higher than those of ordinary polyamide fibers. These properties are due to the high amide group concentration of nylon 3.
