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Levelling Problems in Vat Dyeing
Author(s) -
Musshoff H.
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.tb02169.x
Subject(s) - dyeing , levelling , solvent , chemistry , materials science , pulp and paper industry , polymer chemistry , organic chemistry , engineering , geography , cartography
An important factor in the poor levelling of certain vat dyes is slow migration due to molecular aggregation (up to 3000 molecules) of the leuco compound in solution. Migration may be improved by addition to the dyebath of a suitable non‐ionic solvent, e.g. Solidegal GL (CFM). Practical methods for overcoming levelling difficulties in package dyeing and piece dyeing, notably the vat‐acid and pad–steam processes, are discussed.