Bleaching and dyeing; fluid treatment and chemical modification – Organic additive for dye composition – dye composition... – Six-membered hetero ring having two or more ring hetero...
Patent
1995-10-02
1997-07-22
Lieberman, Paul
Bleaching and dyeing; fluid treatment and chemical modification
Organic additive for dye composition, dye composition...
Six-membered hetero ring having two or more ring hetero...
8494, 8587, 8922, D06P 1642
Patent
active
056499809
ABSTRACT:
A process is described for the photochemical and thermal stabilisation of undyed and dyed polyester fibre materials, which comprises treating said materials with a compound of formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other C.sub.1 -C.sub.12 alkyl. Dyeings and prints of superior lightfastness and sublimation fastness on polyester and cellulose acetate are obtained by this process.
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Reinehr Dieter
Reinert Gerhard
Rembold Manfred
Ciba-Geigy Corporation
Dusheck Caroline L.
Lieberman Paul
Mansfield Kevin T.
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