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The Effect of Treatment with Perchloroethylene on the Abrasion Resistance of Wool Fabric
Author(s) -
Rippon J A,
Leeder J D
Publication year - 1986
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1986.tb01070.x
Subject(s) - worsted , wool , dyeing , dry cleaning , extraction (chemistry) , chemistry , solvent , abrasion (mechanical) , chlorinated solvents , pulp and paper industry , materials science , composite material , chemical engineering , chromatography , waste management , organic chemistry , contamination , ecology , engineering , biology
The Martindale flat‐abrasion resistance (MAR) of lightweight wool worsted fabric is improved by treatment with non‐polar chlorinated solvents, including perchloroethylene. The rate at which the improvement is obtained with perchloroethylene is temperature dependent, but the optimum effect is obtained only by prolonged extraction, even at high temperature (e.g. 2 h at 80°C). A small increase in MAR is, however, obtained by solvent scouring in a commercial dry cleaning machine at 30–35°C. The improvement in MAR induced by treatment with perchloroethylene has been shown to involve extraction of internal lipids. The most likely source of the lipids is the cell membrane complex; their removal is believed to improve MAR because of a subsequent increase in intercellular adhesion. The improvement in MAR obtained by perchloroethylene treatment is stable to mild finishing procedures, but the magnitude of the improvement is decreased by dyeing at the boil. However, except for samples dyed at pH values less than pH 3, the MAR values of the solvent‐treated samples are higher than the values for the untreated and dyed‐only material.