STRETCHABLE FIBER SHEET HAVING METALLIC THIN FILM AND ITS PRODUCTION

摘要

PURPOSE:To provide a stretchable fiber sheet having a metallic thin film having excellent flexibility and stretch recovery and to provide a process for producing the fiber sheet. CONSTITUTION:A fiber sheet having a metallic thin film and its production process are characterized by that, the fiber sheet is composed of a laminate of (A) polyurethane elastic filament and (B) a non-elastic fiber, the bonding point of the laminated polyurethane filament A is welded with the polyurethane filament itself and the non-elastic fiber B has a length >=2 times the length between the bonding points of the polyurethane filament A in a state free from tension.