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Novel pigment binders based on S‐thiosulphato (Bunte salt) terminated polyethers
Author(s) -
Hinks David,
Lewis David M
Publication year - 1993
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.1478-4408.1993.tb01538.x
Subject(s) - cationic polymerization , salt (chemistry) , chemistry , dyeing , polymer , polymer chemistry , wetting , chemical engineering , composite material , organic chemistry , materials science , engineering
An initial study has been undertaken to determine the viability of using S ‐thiosulphato (Bunte salt) terminated polyethers as pigment binders. Three such polymers (two synthesised and a commercial product) of different molecular mass and functionality were investigated. Two substrates were employed: wool fabric as prepared for dyeing and cotton fabric modified with a cationic polyamine. Pigments dispersed in anionic surfactants show high substantivity for the latter substrate and as a result these dispersions can be successfully applied to appropriately treated fibre by exhaust methods. In all cases high standards of wash fastness were achieved without affecting the fibre handle. On cotton each binder showed relatively low fastness to rubbing. On wool a good all‐round fastness was achieved with one of the Bunte salt polyethers. The polymers also displayed excellent properties for use as dispersing, wetting and shrink‐resist agents.