1992 Fiscal Year Final Research Report Summary
Dyeing Properties of Pressure Degummed Silk
| Project/Area Number |
03660058
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
蚕糸学
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| Research Institution | Koka Women's Junior College |
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Principal Investigator |
NAKAJIMA Tetsuo Koka Women's Junior College, Home economics subject, Assistant Professor, 家政科, 助教授 (70175496)
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| Project Period (FY) |
1991 – 1992
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| Keywords | Pressure degumming / Dyeing properties of silk / Equilibrium exhaustion / Dyeing rate / Acid dye / Disperse dye / Direct dye |
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| Research Abstract |
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.
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