natural finishing agent

Many natural polymers have special structures and biological activities, and most of them have no toxic effects and can be naturally degraded. Modifying them to make them new fabric finishing aids will be The future development trend of green fabric finishing auxiliaries �</p

天然功能整理剂的种类大体可分为动物和植物两类：在动物类中，甲壳质和脱乙酰壳聚糖的后加工正受到人们的关注� In addition, collagen, silk fibroin powder, hyaluronic acid, and squalene are being used to soften fiber clothing, keep skin warm, and retain moisture; plant functional agents include mugwort, aloe, Amaranth, licorice, etc. �</p

这类天然高聚物本身大多为β一1，4一糖二苷结合形成的多糖类化合物，其主链上一般含有大量的羟基、缩酮基、羧基、氨基等活性基团� These active groups can not only carry out etherification, carboxymethylation, alkylation, acylation, sulfonation and other reactions, but also can carry out cross-linking reactions with active groups on the surface of fiber fabrics, and can produce strong hydrogen bonds. function, thereby forming a polymer film on the surface of the fabric that can give the fabric certain functionality. �</p

(1)壳聚糖：壳聚糖极易溶于水，处理织物时用量极少，且浸轧液可反复使用，工艺简单易行，只需轧一烘即可。用于织物的后整理时，除可以保持棉织品的吸水、透气性外，还具有防缩和挺括功能。用蟹虾外壳(甲壳质)脱乙烯后成为脱乙烯多糖，制成的整理剂可用于织物的抗菌防臭和保湿整理，国内也有用作涂料印花成膜剂，壳聚糖抗菌防霉产品等。利用壳聚糖纤维还可制成具有远红外热敏性能的服装。

(2)角鲨烯：角鲨烯为一种脂质，可从鲨龟肝脏中提取，含有与人体肌肤亲和性高的物质，可用作织物天然功能性整理剂。整理后的织物安全舒适，并具有良好的润湿性、柔软性和保湿性。

(3)丝胶素：从天然蚕丝精练液中回收、精制提取的丝胶素可对织物进行柔软舒适整理，丝胶素含有大量的氨基酸� �丝氨酸含量高，约占1／3，天冬氨酸和谷氨酸均在10％以上，具有良好的保湿性，用其整理后的织物柔软舒适，穿着时可使肌肤润滑�