YARN HAVING LAMELLAR VOID AND PRODUCTION THEREOF

摘要

PURPOSE:Yarn having improved water absorbing properties and good flexibility and heat retaining properties, wherein continuous voids exist in a lamellar state in the longer direction in the yarn. CONSTITUTION:Yarn having a lamellar void structure wherein voids having thin and long sections exist in the yarn, the voids 1 are continuous in the longer direction of the yarn and part 5 of the voids 1 is opened to the outer surface of the yarn or connected to it by a thin film. The outer surface of the yarn has preferably a great number of continuous uneven stripes in the longer direction of the yarn. The yarn can be produced by pilling two high polymers 6 and 7 in a lamellar state alternately, forming yarn whose outer surface is coated with the one polymer 6 to form an outer skin part 8 and removing the other polymer 7.