| 摘要 |
PURPOSE:To enable the opal processing of a polyester without causing the discoloration and the lowering of strength of a textile product by applying a specific amine to a polyester textile product made of a modified and unmodified polyesters, steaming the amine-treated textile and subjecting to alkali- etching treatment. CONSTITUTION:An amine selected from diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine and diethanolamine is applied in an amount of 3-20wt.% to a textile product of a polyester composed of a modified polyester component (e.g. modified polyester copolymerized with isophthalic acid, adipic acid, etc.) and an unmodified polyester component. The alkali hydrolysis rate of the modified polyester component in the treatment with an alkali bath is more than thrice that of the unmodified polyester component in terms of weight reduction ratio. The amine-treated textile product is steamed and then subjected to etching treatment with an alkali such as sodium hydroxide. The opal processing of a polyester textile product can be carried out by this process without causing the discoloration and the lowering of the strength of the product. |
