High solids direct thermal ink composition and method of making and using same
US5888283A · kind A · utility
13Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1996 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Nov 5, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A direct thermal ink composition is provided which is formed from an aqueous dispersion of an initially colorless color former and an initially colorless color developer in particulate form. The direct thermal ink composition also includes a sensitizer, where the particles of the sensitizer at least partially surround the particles of the color developer, which prevents premature color development of the ink. The thermal ink preferably has a solids content of between about 40 to 60% by weight, and is substantially free of pigments and fillers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.