Wool, silk, nylon 6 and Chinon (promix fibre) fabrics dyed with Cl Acid Black 155 were subjected to sputter etching and also exposed to a low‐temperature argon plasma. Many microcraters were formed on the fibre surface by the sputter etching technique and the depth of shade of the fabrics increased considerably. Neither of these effects was observed following argon plasma treatment.
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Ryu et al. (1992) studied this question.
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