Patent · US Expired

Ink jet printer method

US6419354B1 · kind B1 · utility

1Cited by
5References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 22, 2000
Grant dateJul 16, 2002
Priority date
Expiry dateAug 22, 2020

Classification

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

Abstract

An ink jet printing method, including the steps of:A) providing an ink jet printer that is responsive to digital data signals;B) loading the printer with ink-receptive elements, including a support having thereon a porous ink-receptive layer;C) loading the printer with an ink jet ink composition including: water, a humectant, and a delocalized cationic azo dye derived from the quaternization of a nitrogen heterocyclic azo dye having the following formula: D) printing on an ink-receptive substrate using the ink jet ink in response to the digital data signals.

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