Color image forming method and ink used therefor

Details Color image forming method and ink used therefor Color image forming method and ink used therefor

1987-08-11

1989-09-05

Burgess, Amelia

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

106 20, 106 22, 346 75, G01D 900

Patent

active

048643246

ABSTRACT:
There is disclosed a method for forming a color image by use of a plurality of color inks containing a cyan ink, wherein there is used an ink as the cyan ink which contains a metallophthalocyanine dye and/or a metal-free phthalocyanine dye and which contains free ions of divalent or higher metals at the concentration of 15 ppm or less, the methallophthalocyanine dye having a coordination metal selected from the metal atoms of the groups, IIA, IVB, VA, VIIA and VIII of the periodic Table of The Elements at the center of its skeleton, and the metal-free phthalocyanine dye having no coordination metal at the center of its skeleton, and also an ink to be used therefor.

REFERENCES:
patent: 3889271 (1975-06-01), Freytag et al.
patent: 3909259 (1975-09-01), Mammino et al.
patent: 4066563 (1978-01-01), Mammino et al.
patent: 4147540 (1979-04-01), Mammino et al.
patent: 4324851 (1982-04-01), Lu et al.
patent: 4347173 (1982-08-01), Merian et al.
patent: 4663642 (1987-05-01), Kameda

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