Dyeing process and printing process using reactive dyestuffs
AssigneeBayer Aktiengesellschaft
InventorDietrich Hildebrand
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Abstract
The present invention relates to a new process for dyeing or printing fibre materials with reactive dyestuffs which split off fluoride ions, which is characterized in that neutral or acid dyebaths or printing pastes which contain, in addition to the reactive dyestuff and customary auxiliaries and solvents, one or more organic and/or inorganic calcium compounds are employed.
Claims11
Process for dyeing or printing fibre materials with the aid of reactive dyestuffs which split off fluoride ions, characterised in that neutral or acid dyebaths or printing pastes which contain, in addition to the reactive dyestuff and customary auxiliaries and solvents, one or more organic and/or inorganic calcium compounds are employed said calcium compounds being soluble in water or being sparingly soluble in water.
Dependencies are inferred from the claim text.