| 摘要 |
PURPOSE:To improve wear resistance, yellowing and browning denaturation, wrinkle resistance, etc., by immersing silk yarn in polyethylene glycol, drying, supplying the yarn with an aqueous reaction solution of a polyfunctional epoxy compound by making water content of the reaction solution in a specific range and subjecting the yarn to wet heat treatment with saturated steam occurring with hot air. CONSTITUTION:A product of silk yarn is impregnated with polyethylene glycol having phase transfer catalyst ability, dried and then supplied with an aqueous reaction solution of a glycidyl ether as a polyfunctional epoxy compound by making water content in the reaction solution 40-100wt.% based on the product of silk yarn. The silk yarn is put in a reaction chamber of a closed treating device, heated by sending hot air while rotating, and change of concentration and distribution of the epoxy compound is suppressed. The yarn is subjected to wet heat treatment with saturated steam produced from water contained in the yarn to extremely improve defects such as wear properties, yellowing and browning denaturation, wrinkle resistance and washing shrinkage without damaging excellent touch, handle, gloss, luster, etc., of characteristic silk yarn. |
