| 摘要 |
PROBLEM TO BE SOLVED: To make a luminous composite filament emitting light by itself into a sufficiently stable twisted yarn to improve strength. SOLUTION: In the production of a luminous composite yarn by twisting a luminescent agent-containing synthetic resin filament and a synthetic resin filament having the surface coated with glass beads, the filaments are coated with collagen and twisted or the twisted yarn is coated with collagen after twisting. |
