Magenta dye, jet ink, and color set
A water-soluble dye for a color subtractive, lightfast, wide spectrum ink as follows:wherein:X isR1 is:an aliphatic radical having from 1 to 18 carbon atoms;the radicalin whichR2 is -H, -lower alkyl of 1 to 4 C atoms,-lower alkoxy, -halogen, -N02-CN, -C02 H;R3 is -H, -lower alkyl having 1 to 4 C ato...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A water-soluble dye for a color subtractive, lightfast, wide spectrum ink as follows:wherein:X isR1 is:an aliphatic radical having from 1 to 18 carbon atoms;the radicalin whichR2 is -H, -lower alkyl of 1 to 4 C atoms,-lower alkoxy, -halogen, -N02-CN, -C02 H;R3 is -H, -lower alkyl having 1 to 4 C atoms, -halogen, -C02H;M is H, Li, Na, K, -N(R4)4 in which R4 is H,in whichR5 is -H, -lower alkyl, and n is 1 to 4; and in whichone of the -SO3M groups on the amino-naphthol radical is positioned meta or para to the -NH-group and the other -SO3M is meta to the -OH, and the dye in a water and glycol vehicle. A dye set of this dye, Direct Blue 199, and Direct Yellow 132 provides a full color spectrum of bright, lightfast colors. |
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