Thermosensible plate material for forming lithography and method for preparing the same, liquid thermosensible plate material for forming lithography, and lithography
US6821704B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2001 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Oct 15, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41N1/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A heat sensitive type plate material for forming lithography comprising a substrate (1) and, formed thereon, a heat sensitive layer (2), which in turn comprises a hydrophilic polymer (3) having a Lewis base moiety, lipophilic part forming particles (4) which form a lipophilic part on the surface of a plate through the change caused by heat, and polyvalent metal oxide particles (5), the lipophilic part forming particles (4) and the polyvalent metal oxide particles (5) being dispersed homogeneously in the heat sensitive layer (2). The plate material requires no developing process on forming a plate, and can form a lithography which has not only high mechanical strength, but also high printing durability, and further can be prepared with no significant increase of production cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.