1995 Fiscal Year Final Research Report Summary
STUDIES ON THE DEVELOPMENT OF THE DIRECT MEASUREMENTS METHOD OF THE TRANSIENT PHENOMENA IN DIP DYEING
| Project/Area Number |
06558003
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
家政学
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| Research Institution | KAGOSHIMA UNIVERSITY (1995)
Heian Jogakuin (St. Agnes') College (1994) |
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Principal Investigator |
MURAOKA Yoichiro KAGOSHIMA UNIVERSITY,FACULTY OF EDUCATION,PROFESSOR, 教育学部, 教授 (10074147)
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| Co-Investigator(Kenkyū-buntansha) |
IGARASHI Chiaki EBARA RESEARCH CO., CENTER FOR ENVIRONMENTAL ENGINEERING,SENIOR RESEARCH ENGINEE, 環境研究所, 室長
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| Project Period (FY) |
1994 – 1995
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| Keywords | Initial stage of dip dyeing / Optical glass fiber / Direct dyebath measurement / 668nm monochronic light / 1 sec. dyeing process from the start / Acrylic fiber / 1 millisec. sampling time / Methylene blue |
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| Research Abstract |
A new experimental apparatus has been developed for analyzing the initial stage of several seconds from the start of the dyeing process under rapid exhaustion conditions. A cationic dyeable acrylic fiber was dyed at 90ﾟC with 0.002% methylene blue solution of pH 6.4 with a 500 : 1 liquor ratio. The fiber was left in the 90ﾟC steamed atmosphere for 30 minutes before dyeing. The wave length of the 668 nm monochronic light beam transmittance was detected with multiple optical glass fibers directly inserted in the dyebath. Six percent of the equilibrium concentration (EC) of the dye in the fiber was adsorbed before 1 second. In case of a cationic dyeable polyester fiber, 9% of the EC was adsorbed in the same period. The addition of a fiber-affine leveling agent, cationic surfactant resulted in the reterdation of dye uptake, namely 1.2% and 7.2% uptake in the same period for acrylic and polyester respectively.
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