OXIDATION-TREATED CARBON BLACK, ITS PRODUCTION, AQUEOUS DISPERSION CONTAINING THE SAME AND AQUEOUS INK
PROBLEM TO BE SOLVED: To enable the subject carbon black hardly having humic acid content and alkali ion content, excellent in dispensability (stability) to water and useful as pigment for aqueous ink by reacting carbon black with ozone in the presence of water. SOLUTION: (A) Carbon black [e.g. carb...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To enable the subject carbon black hardly having humic acid content and alkali ion content, excellent in dispensability (stability) to water and useful as pigment for aqueous ink by reacting carbon black with ozone in the presence of water. SOLUTION: (A) Carbon black [e.g. carbon black having |
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