MIXED PRODUCT OF POLYESTER FIBER AND PROTEIN FIBER

摘要

PROBLEM TO BE SOLVED: To provide a mixed dyed product having a soft and flexible feeling and also having high color development, and providing good color uniformity and excellent color fastness by mixing a modified polyethylene terephthalate with a protein fiber.;SOLUTION: The subject mixed product is obtained by mixing the easily dyeable polyester fiber comprising a polyester obtained by copolymerizing 3-8 wt.% polyethylene glycol having 300-2,000 molecular weigh with a polyethylene terephthalate and containing ≥90 wt.% ethylene terephthalate repeating unit, having a W-shaped cross section of a single fiber, satisfying the condition (1): 2≤ovality≤4, and having the temperature (Tmax) exhibiting the maximum of a dynamic loss tangent (tanδ) at 110 Hz measure frequency within the range of the condition (2): 85°C≤(Tmax)≤105°C, with the protein fiber.;COPYRIGHT: (C)2006,JPO&NCIPI