期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 109, 期 2, 页码 1257-1261出版社
JOHN WILEY & SONS INC
DOI: 10.1002/app.25865
关键词
wool; atmospheric pressure plasma; dyeing; acid dye
The dyeing properties of wool treated with atmospheric pressure plasma are investigated in terms of exhaustion with dyeing time, absorption isotherm and C-t/C-infinity. versus t(1/2) curves, dyeing rate (half-dyeing time), exhaustion at dyeing equilibrium, and color fastnesses. The wettablity and surface morphology of the plasma-treated wool are also analyzed. Through both air/helium and oxygen/helium atmospheric pressure plasma treatments, the water contact angle of the fabric decreases from 132.4 degrees to 0 degrees and water penetration time drops from more than 2000 s to 1 s or 2 s. The scanning electron microscopy analysis shows etching and crack marks on treated fiber surfaces. The plasma treatments greatly increase initial dyeing rate, shorten half-dyeing time, t(1/2), and the time to reach dyeing equilibrium, although the final exhaustion and color fastnesses do not change. The Langmuir adsorption equation is also valid for the plasma-treated wools dyed with an acid dye. (c) 2008 Wiley Periodicals, Inc.
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