| 摘要 |
PURPOSE:To obtain polyamide sewing yarns hard to yellowing due to ultraviolet radiation inherent in sunlight and fluorescent lamps, NOx gases in automobile exhaust gases, etc., and lignin and vanillin present in corrugated boards, etc. CONSTITUTION:This polyamide sewing yarn <=0.01mmol/g in the concentration of the amino terminal groups of a polyamide such as nylon 6 or nylon 66 with part of the original amino terminal groups blocked by a triazine derivative. Another version of this polyamide sewing yarn also contains a benzoxazole- based compound. |
