Thermosensitive color-changing dry offset ink and a printed material using the same
US6863720B2 · kind B2 · utility
10Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2002 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Jun 6, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The problem is to provide a thermosensitive color-changing dry offset ink, having no problem in an ink transferability and an excellent printing characteristics. As a thermosensitive color-changing dry offset ink is used one composed of thermosensitive, color-changing microcapsules mixed in a vehicle the capsule having two particle size characteristics of (1) particle size distribution: particles of less than 0.5 μm are contained in not less than 10 volume % and those not larger than 3.0 μm are contained in not less than 90 volume % and (2) mean particle diameter: 0.2-1.5 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.