Dyeing Properties of Pressure Degummed Silk

用酸性染料、分散染料和直接染料对真丝高压脱胶后的染色性能进行了测试，并与常规碳酸钠脱胶后的染色性能进行了比较。非离子表面活性剂对加压脱胶真丝的吸附等温线高于普通脱胶真丝。但前者的扩散系数低于后者。在吸附等温线上，C.I.分散红19的加压脱胶真丝与普通脱胶真丝没有显著差异。但两者对分散染料的扩散系数与酸性染料的扩散系数相近。在染色性能上，C.I.直接红23与其他常用染料不同。也就是说，加压脱胶蚕丝的扩散系数高于普通脱胶蚕丝。认为真丝纤维中残留碳酸钠的影响较为敏感。

The dyeing behavior of pressure degummed silk using autoclave was examined and compared with that of general degummed silk with sodium carbonate solution.The dyes used were acid-, disperse- and direct dye. The adsorption isotherms of pressure degummed silk using nonionic surfactant only with C. I. Acid Orange 7 was higher than that of general degummed silk. However, the diffusion coefficients of the former was lower than that of the latter. On the adsorption isotherms, there was no significant difference between pressure degummed silk and general degummed silk with C. I. Disperse Red 19 . But the diffusion coefficients of the both with disperse dye were similar to that of acid dye . On the dyeing properties with C. I. Direct Red 23 were different to that of other used dyes. Namely, the diffusion coefficient of pressure degummed silk was higher than that of general degummed silk. It is considered that the effect of remained sodium carbonate in silk fibers appeared sensitively.