Patent · US Active

Ink set for ink-jet recording and method for producing tetracomposite black image

US7866808B2 · kind B2 · utility

2Cited by

4References

2Claims

0Family size

Assignee

BROTHER KOGYO KABUSHIKI KAISHA · JP

Inventors

Kenta Hayashida · Inazawa, JP
Yasuhiro Taga · Ebeye, US
Kazuma Goto · Nagoya, JP

Key dates

Filing date	Mar 14, 2008
Grant date	Jan 11, 2011
Priority date	—
Expiry date	Dec 4, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D11/328
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

An ink set for ink-jet recording includes a dye yellow ink, a dye magenta ink, a dye cyan ink, and a dye black ink, wherein regarding a reduction rate in OD value between before and after a predetermined lightfastness test of each patch in the case where a patch of each ink is subjected to the lightfastness test, the order of levels of reduction rates in OD values of a yellow component, a magenta component, and a cyan component in a dye black ink patch is reverse to the order of levels of reduction rates in OD values of a yellow component in the dye yellow ink patch, a magenta component in the dye magenta ink patch, and a cyan component in the dye cyan ink patch.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.