Bleaching and dyeing; fluid treatment and chemical modification – Confined gas phase superatmospheric pressure dyeing process
Patent
1984-11-08
1987-04-07
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Confined gas phase superatmospheric pressure dyeing process
8148, 8158, 8400, 8636, 8662, 8922, 8147, C09B 6738, D06P 116, D06P 520
Patent
active
046557865
ABSTRACT:
The invention relates to a process for dyeing hydrophobic fibre material under HT conditions with unformulated disperse dyes from an aqueous liquor, which process comprises dissolving one or more such dyes in water, in the temperature range from 70.degree. to 100.degree. C., with a surfactant or mixture of surfactants which has a hydrotropic action on disperse dyes, feeding the dye solution into a dyeing apparatus which contains water heated to 70.degree. to 100.degree. C. and substrate, and subsequently heating the dye liquor to dyeing temperature, or dissolving the dye at a temperature of over 100.degree. C. under pressure by means of the surfactant or mixture of surfactants which has a hydrotropic action on the dye, feeding the solution into a closed dyeing apparatus which contains water heated to 100.degree. to 150.degree. C. and substrate, and, in both cases, carrying out dyeing in the temperature range from 120.degree. to 150.degree. C. with constant circulation of the dye liquor.
The advantage of this process is that disperse dyes can be used direct for dyeing e.g. polyester without complicated grinding and formulation procedures.
REFERENCES:
patent: 4089644 (1978-05-01), Carbowell et al.
patent: 4125371 (1978-11-01), Beutler et al.
patent: 4249902 (1981-02-01), Kruckenberg et al.
patent: 4255154 (1981-03-01), Zurbuchen et al.
patent: 4432770 (1984-02-01), Hasler et al.
patent: 4491955 (1985-01-01), Glawder
patent: 4518392 (1985-05-01), Mollet et al.
P. Becher, Emulsions: Theory and Practice (1977) (Abstract).
Abel Heinz
Navratil Josef
Ciba-Geigy Corporation
Clingman A. Lionel
Findlay Meredith C.
Mansfield Kevin T.
McC. Roberts Edward
LandOfFree
Process for dyeing hydrophobic fibre material with disperse dye does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for dyeing hydrophobic fibre material with disperse dye , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for dyeing hydrophobic fibre material with disperse dye will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1084408