Non-dustable granular dye: dye particles coated with hydroxylpropyl cellulose or carbohydrate
AssigneeNippon Kayaku Kabushiki Kaisha
InventorsFumitaka Satou, Fumio Ogawa
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Abstract
A non-dustable granular dye comprising dye particles in granular form coated with a coating agent selected from the group consisting of a water-soluble high-molecular weight substance, a monosaccharide and an oligosaccharide.
Claims6
A non-dustable granular dye composition which comprises dye particles in granular form coated with a monosaccharide, an oligosaccharide or hydroxypropyl cellulose.
A process for producing a non-dustable granular dye composition comprising the steps of mixing a powdery dye with a blinding agent, converting the mixture to granular form, and coating the dye granules thus formed with a monosaccharide, an oligosaccharide or a hydroxypropyl cellulose.
Dependencies are inferred from the claim text.