Ink jet printer ink composition and process for producing same

Details Ink jet printer ink composition and process for producing same Ink jet printer ink composition and process for producing same

1987-10-27

1989-04-04

Yarbrough, Amelia B.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 20, C09D 1102

Patent

active

048182850

ABSTRACT:
The ink compositions of this invention comprise four aqueous component ink compositions including four different water-soluble dyes, namely, water-soluble cyan, magenta, yellow and black dyes. These component ink compositions, when used together, produce a hard copy image having a color gamut that visually more closely corresponds to the color gamut of an image displayed on the color video screen than prior art ink compositions. This specific color gamut is represented by the hereinafter described specific ranges of hue angles in a CIELAB standard chromaticity diagram for each of such component ink compositions. The nature and identity of the component ink compositions are also further described by providing the preferred ranges for each component of the wavelength of maximum absorbance (Lambda max, measured in nm) and for the spectral strength in ml/absorbance unit at that maximum point of absorbance.

REFERENCES:
patent: 4388115 (1983-06-01), Sugiyama et al.
patent: 4409040 (1983-10-01), Tabayashi et al.
patent: 4425162 (1984-01-01), Sugiyama et al.
patent: 4446470 (1984-05-01), Sugiyama et al.
patent: 4512807 (1985-04-01), Ogawa et al.
patent: 4613525 (1986-09-01), Miyamoto et al.

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