Ink for ink jet recording and ink jet recording method
US5969005A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1997 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Jul 7, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides an ink which provides an image with a sufficient image density free from bleeding and unevenness, dries rapidly on paper and can be jetted at a high reliability and a recording method using said ink. A novel ink for ink jet recording comprising water, a coloring material and a water-soluble organic solvent is provided, characterized in that said ink comprises a polymer containing a carboxyl group having an average molecular weight of from 1,000 to 20,000 in the free or salt state in an amount of from 0.1 to 3% by weight, a water-soluble organic compound which normally stays solid and vaporizes in a proportion of not less than 50% by weight at a temperature of from 100.degree. C. to 350.degree. C. in an amount of from 1 to 20% by weight, and a compound represented by the following formula (A): EQU R--O--X.sub.n H (A) wherein R represents a functional group selected from the group consisting of C.sub.4-8 alkyl, alkenyl, alkinyl, phenyl, alkylphenyl, alkenylphenyl and cycloalkyl groups; X represents an oxyethylene or oxypropylene group; and n represents an integer of from 1 to 4 in an amount of from 1 to 20% by weight, and said ink exhibits a surface ten…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.