Bleaching and dyeing; fluid treatment and chemical modification – Reactive dye composition – process – or product – Alkylene sulfato – halotriazine – halodiazine,...
Patent
1986-12-16
1990-03-27
Willis, Prince E.
Bleaching and dyeing; fluid treatment and chemical modification
Reactive dye composition, process, or product
Alkylene sulfato, halotriazine, halodiazine,...
8638, 8917, 8DIG2, C09B 6700
Patent
active
049117351
ABSTRACT:
Trichromatic dyeings with acid dyes which exhaust from strongly acidic liquors have weaknesses with respect to wet fastness, which are due to insufficiently fast components (blue, red). It has been found, according to the invention, that by replacing the insufficiently fast acid dyes by reactive dyes of the vinylsulfonyl type and retaining the method of dyeing under strongly acidic conditions the wet fastness level of the exhaust dyeings can be improved while the levelness obtained remains as good.
REFERENCES:
patent: 0702 (1838-04-01), Fossard
patent: 4350494 (1982-09-01), Scheidegger et al.
patent: 4568350 (1986-02-01), Roherer
patent: 4622045 (1986-11-01), Frauenknecht et al.
Kollodzeiski, N. ("Remazolan-Farbstoffe, eine neue Farbstoffgruppe fuer die Wolle"), Meilland Textilberichte 45, 51-54 (1964).
German Industrial Standard (DIN) No. 54 020 (12/69) ("Determination of Color Fastness of Dyeings and Prints to Perspiration").
German Industrial Standard (DIN) No. 54 013 (1/71) ("Determination of Wash-Fastness for Dyeings and Prints: Mech. Wash. 50.degree. C.".
Color Index, 3rd Ed., Soc. of Dyes and Colorists, 1972, "Acid Dyes", pp. 1001-1002.
Shade Bulletin S 8126, "REMAZOLAN-Farbstoffe auf Wolle" (REMAZOLAN Dyestuffs on Wool), trade lit. of Hoechst AG, 1963, pp. 3-13.
Rostermundt Karl-Heinz
Turschmann Klaus
von der Eltz Hans-Ulrich
Hoechst Aktiengesellschaft
McNally John F.
Willis Prince E.
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