MANUFACTURE OF COMPOSITE MATERIAL HAVING A HEAT RETAINING PROPERTY, MOISTURE ABSORBING/RELEASING AND WATER ABSORBING HEAT-GENERATING PROPERTY

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a composite material which has good moisture absorbing/releasing and heat retaining properties and generates heat by moisture and water absorption to improve a heat retaining effect and a good cushioning property. ;SOLUTION: A web is formed by mixing moisture absorbing/releasing and water absorbing exothermic fibers 2a and composite fibers 2b consisting of high melting point fibers and low melting point fibers. The web is laid to overlap a soft polyurethane foam sheet 1. After the fibers with each other or the fibers and the polyurethane foam sheet are interlaced by needle punching, the web is heated at the melting point of the low melting point fibers or more, and the fibers with each other or the fibers and the polyurethane foam sheet are bonded by fusion.;COPYRIGHT: (C)1997,JPO