Basf Aktiengesellschaft

Leonhard Von Rambach

Ewald Daubach

Heinz Saukel

Bertold Honigmann

Powdered, highly concentrated and stably dispersible dye formulations which are substantially devoid of dye agglomerates, which contain dyes which are not soluble in water such as disperse dyes or vat dyes, anionactive dispersing agents and (as stabilizing agent) from 2 to 30% by weight based on the dye of a polyethylene oxide having a molecular weight of from 200 to 1000 or a reaction product which has been obtained from

Powdered, highly concentrated and stably dispersible dye formulations

A new .beta.-modification of the dye of the formula: ##SPC1## Which is eminently suitable for dyeing polyesters in particular and which is surprisingly more stable under dyeing conditions than the modification already known.

Growing community of inventors

Ludwigshafen, Germany

Leonhard Von Rambach