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Some Observations on the Dyeing of Dicel and Tricel Yarns and Fabrics
Author(s) -
OLPIN H. C.,
WOOD J.
Publication year - 1957
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.1478-4408.1957.tb02197.x
Subject(s) - dyeing , pulp and paper industry , polymer science , materials science , composite material , engineering
Full colours are obtainable on Dicel and Tricel with disperse, azoic, and developed dyes. A carrier technique, no longer considered necessary for Dicel, is valuable for Tricel, for which high‐temperature dyeing also can be used. Azoic combinations, applicable to both fibres by the concurrent technique, show variable resistance to permanent change of colour on ironing. Some combinations are substantially free from this trouble, but in all cases where it takes place it is associated with change in the degree of aggregation, which suggests redispersion of the dye aggregates in the fibre. Developed navy blues and blacks are more satisfactory than direct dyeings, and 3‐hydroxy‐2‐naphthoic acid can be used as a developer for both navy blues and blacks on Tricel owing to its greater resistance to change in colour with alkali on that fibre. Disperse dyes of the C. I. Disperse Blue 27 type are acidic, and their alkali‐metal salts are very vulnerable to destruction by light and by oxidising agents, which imposes restrictions on their usefulness on Dicel. On Tricel, however, where salt formation does not take place, these blues are quite safe for all purposes.