Core/sheath type temperature-sensitive shape-transformable composite filaments

摘要

In a core/sheath type temperature-sensitive shape-transformable composite filament comprising a thermoplastic resin (A) and a thermoplastic polymer (B) having a glass transition temperature within the range of from 0 DEG C to 70 DEG C, the composite filament is constituted in proportions satisfying the following expressions (1), (2) and (3). In the core; $In\; the\; sheath;$ $ The\; filament\; is\; useful\; as\; doll\; hair\; the\; hair\; style\; of\; which\; is\; thermally\; shape-transformable\; to\; any\; desired\; shapes\; even\; by\; infants,\; and\; is\; easily\; fixable\; to\; the\; transformed\; shape\; by\; cooling.$$$