Invention Grant
- Patent Title: Lightfast ink-jet dye set having color gamut of silver halide prints
- Patent Title (中): 具有卤化银色带色域的耐光喷墨染料
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Application No.: US10002066Application Date: 2001-10-30
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Publication No.: US06682589B2Publication Date: 2004-01-27
- Inventor: Peter C. Morris , Stephen W. Bauer , Shirley Lee , Keshava A. Prasad , Jeffrey H. Barr
- Applicant: Peter C. Morris , Stephen W. Bauer , Shirley Lee , Keshava A. Prasad , Jeffrey H. Barr
- Main IPC: C09D1100
- IPC: C09D1100

Abstract:
A specific dye set for formulating yellow, cyan, magenta, and black inks comprises Direct Yellow 132, at least one other yellow dye, Direct Blue 199, a magenta dye comprising a dye having the structure and, optionally, Pacified Reactive Black 31, respectively. The dye set provides excellent ink-jet prints having excellent lightfastness when exposed to office light, excellent imaging onto glossy inkjet media, and large color gamut which substantially encompasses the color space for a silver halide reference print. The aqueous inks each comprise from about 0.1 to about 5 wt % of at least one dye with the black ink comprising from about 0.5 to about 5 wt % of at least one colorant; from about 5 to about 20 wt % of at least one organic solvent; 0 to about 1.5 wt % of at least one component independently selected from the group consisting of surfactants, buffers, biocides, and metal chelators; and the balance water.
Public/Granted literature
- US20030101904A1 Lightfast ink-jet dye set having color gamut of silver halide prints Public/Granted day:2003-06-05
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