Wella Aktiengesellschaft

Ipc Process Center Gmbh & Co.

Ipc Process-Center Gmbh & Co. Kg

Wolfram Englisch

Juergen Schmenger

Petra Braun

Wolfgang Kempe

Gunnar Nagel

The dust-free coated dye-containing pellet is a granulated carrier material that is encapsulated with a dye-containing coating material. The dye-containing coating material contains a mixture of a water-soluble or water-dispersible film-former with at least one direct dye and/or at least one oxidation dye precursor. Preferred carrier materials include dextrose, oligosaccharides and cellulose compounds. The dust-free coated dye-containing pellet is preferably made by granulating the carrier material together with optional antioxidants and auxiliary agents, heating the resulting granulate at no more than 34&#xb0; C., subsequently coating the granulate by spraying it with a solution or dispersion of the coating material and optionally drying as needed.

Dye-containing pellets for coloring keratin fibers

The present patent application relates to dye-containing pellets obtained by (a) homogeneous mixing of a starting material containing at least one natural and/or synthetic dye with a suitable carrier material and then coating with a suitable encapsulation material or (b) coating a suitable carrier material with a mixture of at least one natural and/or synthetic dye and at least one suitable encapsulation material, to the use of said pellets for preparing colorants for keratin fibers and to the colorants based on said pellets.

Dye-containing pellets for dyeing keratin fibres

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Bannewitz, Germany

Wolfram Englisch