COMPOSITE PIGMENT AND METHOD FOR THE PRODUCTION

• Main Authors: OTTERSTEDT, ORVAR, ERIK, OTTERSTEDT, JAN-ERIK, STERTE, PER, JOHAN
• Format: Patent
• Language: English; French; German
• Published: 27.04.1994
• Edition: 5
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; LAKES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; PREPARATION OF CARBON BLACK; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

L'invention se rapporte à un pigment possédant une structure composite. Ledit pigment est caractérisé par le fait qu'il comprend un noyau (1) recouvert d'une ou plusieurs couches (2) de colorants, dont chacune est éventuellement recouverte par une pellicule optiquement transparente (3), insoluble ou partiellement insoluble dans l'eau ou dans des solvants organiques. L'invention comprend également un procédé de fabrication dudit pigment. The invention relates to a pigment having a composite structure. It is characterized in that it comprises a core (1) which has been covered by one or more layers (2) of colorants, which optionally each in their turn have been covered by an optically transparent film (3) which is insoluble or partly insoluble in water or organic solvents. The invention includes also a process for the production of the pigment.