Easily dispersible pigment and process for producing same
Abstract
Abstract AN EASILY DISPERSIBLE PIGMENT IS PRODUCED BY ADMIXING A WATER SLURRY OF A PIGMENT WITH AN OIL IN WATER TYPE EMULSION WHICH CONTAINS A VARNISH. THE VARNISH COMPRISES (1) AN ORGANIC LIQUID WHICH IS DIFFICULTLY WATERMISCIBLE OR WATER IMMISCRIBE AND WHICH IS CHARACTERIZED BY A HIGHER BOILING POINT THAN WATER, (2) A RESIN WHICH AT COMPATIBLE WITH SAID ORGANIC LIQUID, AND (3) AN ORGANIC SOLVENT WHICH IS DIFFICULTY WATER SOLUBLE OR WATER INSOLUBLE, BUT WHICH IS CAPABLE OF DISSOLVING OR SWELLING THE RESIN. THE EMULSION-SLURRY IS AGITATED WHEREBY THE PIGMENT IS TRANSFERRED FROM THE SLURRY INTO THE OIL PHASE. THE MIXTURE OF THE ORGNIC LIQUID, THE RESIN AND THE PIGMENT CONTAINING A NUMBER OF FORMS IS OBTAINED AND IS DRIED TO FORM AN EASILY DISPERSIBLE PIGMENT.
Inventors
- 👤 Y Kiyokawa
- 👤 K Fukumasu
- 👤 H Sugisaki
- 👤 Y Ogawa
- 👤 A Ono
Bibliographic Details
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