Abstract: Described is a method for producing a colored silk filament by having a colorant solution absorbed through the spiracles of each silkworm larva and then allowing the larva to secrete the colored silk filament through the spinneret thereof. In this method, a solution of a polymer-linked dyestuff is employed as the colorant solution.
Type:
Grant
Filed:
October 5, 1994
Date of Patent:
July 23, 1996
Assignees:
Dainichiseika Color & Chemicals Mfg. Co., Ltd., Shigeji Ogiwari