亚麻织物的降解壳聚糖衍生物防皱整理

Anti-crease finish of linen fabric with degraded chitosan derivative

以自制1，2，3，4.丁烷四羧酸二酐为原料，与聚合度n=8～16的降解壳聚糖反应，制备降解壳聚糖1，2，3，4-丁烷四羧酸衍生物（BTCJB），应用于亚麻织物防皱整理；通过正交试验，优化亚麻织物BTCJB防皱整理工艺。结果表明，防皱整理剂BTCJB的取代度范围为0.538～0.552，其合成投料比／1,（降解壳聚糖）：n（丁烷四羧酸二酐）=1：1.5～1：2.0；BTCJB的亚麻织物防皱整理优化工艺为BTCJB取代度0.538，用量l％，催化剂SHP4％，浴比1：20，165℃焙烘3min，整理后织物折皱回复角可达198°。

Degraded chitosan 1, 2, 3, 4-butanetetracarboxylic acid derivative（BTCJB） is prepared via the reaction of I, 2, 3, 4- butanetetracarboxylic dianhydride and degraded chitosan of DP 8 - 16, and is applied to anti-crease finish of linen fabric. The reaction conditions is determined by orthogonal experiments as follows： degree of substitution of BTCJB is 0.538 ～ 0.552, the molar ratio of degraded chitosan to 1, 2, 3, 4-butanetetracarboxylic dianhydride is 1 ： 1.5 ～ 1 ： 2.0. The optimized anti-crease finish process of linen fabric is： 1% of BTCJB with 0.538 of DS,4% of catalyst SHP, bath ratio 1：20, and curing at 165℃ for 3 min. The finished linen fabric features wrinkle recovery angle of 198°.