柞蚕絹の染色性

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書誌事項

タイトル別名
  • Dyeing properties of Chinese tusser silk.
  • さく蚕絹の染色性
  • サクサン キヌ ノ センショクセイ

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説明

The dyeing behavior of Chinese tusser silk was examined and compared with that of domestic silk. The dyes used were acid-, disperse- and reactive disperse dyes. The dyeing rate of domestic silk yarn with C. I. Acid Orange 7 (OR II) was higher than that of Chinese tusser silk yarn up to 900 seconds. However, elapsing the time reversed the situation after that. The diffusion coefficients of OR II in silk samples were obtained by Hill's approximate equation. The diffusion coefficient of OR II in Chinese tusser silk yarn was larger than that in domestic silk yarn. The thermodynamic parameters were calculated from the data of the dyeing of silk samples with OR II at equilibrium state. The binding constant, standard affinity and the heat of dyeing of OR II for domestic silk were larger than those in case of Chinese tusser silk. This difference results from the difference in amino acid compositions of these silks, namely the sort and amount of functional group interacting with OR II are different each other. Adsorption of disperse dye on Chinese tusser silk was the exothermic reaction, the heat of dyeing was smaller than that in case of domestic silk. Also, standard affinity of disperse dye for Chinese tusser silk was smaller compared to domestic silk. The more amounts of a reactive disperse dye of sulfatoethylsulfonyl type for domestic silk were exhausted and fixed in the lower dye concentration, but the situation reversed in the higher dye concentration, that is, the dye preferred Chinese tusser silk.

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