Method of making laser imaged printing plates utilizing ultraviolet absorbing layer
US5925500A · kind A · utility
82Cited by
45References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1997 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Aug 21, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Laser-imageable flexographic printing plates and a method of making same are disclosed. A thin polymeric film doped with a UV absorber is laminated to a photopolymer layer. The film is ablated from the photopolymer using a laser operating at a selected wavelength to create an in situ negative. The resulting negative can be subjected to typical UV flood exposure and development.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.