Ciba-geigy Corporation

Paolo Balliello

Beat Bruttel

Ernst Tempel

Paul Erzinger

Otto Schilling

Hanspeter Will

There are disclosed solid dye formulations which comprise at least one anionic wool dye and optional additional components as well as a mixture of an anionic dispersant and an amphoteric surfactant. Such formulations are distinguished in particular by improved solubility in water.

Solid formulation of anionic wool dyes with anionic dispersant and

A process for the preparation of floating granules ('speckles') by spray drying a solution that contains one or more active substances, a carrier material and a foaming agent, and subsequently compacting the dried material so obtained.

Process for the preparation of granules containing an active substance

The invention relates to solid formulations of metal complex dyes, which formulations are obtained by dissolving or suspending at least one metal complex dye in water with the addition of an anionic dispersant or mixture of dispersants, and 1 to 20% by weight, based on the final formulation, of a non-ionic ethylene oxide adduct having a molecular weight of 200 to 5000, and optionally further ingredients, subsequently mixing the components and spray drying the solution or suspension. Such formulations are readily wettable and have a cold water dispersibility of .gtoreq.30 g/l.

Solid formulations of metal complex dyes

The invention relates to dyestuff granulates which comprise at least one water-insoluble dye, an anionic dispersant and optionally other auxiliaries, which granulates contain as essential component at least one amphoteric surfactant. Such granulates have, inter alia, excellent cold water dispersibility and good wettability. They are used for preparing dyebaths, padding liquors or printing pastes for dyeing and printing textile material.

Cold water dispersible dyestuff granulates

Solid dye preparation of water soluble dyes with aliphatic

The invention relates to solid dye formulations which, in addition to containing at least one anionic dye, at least one anionic dispersant, a non-ionic emulsifier and optionally further ingredients, contains 0.1 to 10% by weight, based on the final formulation, of a quaternary ammonium salt of the formula I ##STR1## wherein R.sub.1 is a C.sub.8 -C.sub.20 alkyl or C.sub.8 -C.sub.20 alkenyl group, each of R.sub.2, R.sub.3 and R.sub.4 independently of one another is a C.sub.1 -C.sub.4 alkyl group, and An.sup..crclbar. is an anion. Such formulations, which have good cold water solubility, are suitable for dyeing or printing textile material e.g. of wool or polyamide.

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Rheinfelden, Germany

Paolo Balliello