Method and system for thermal processing of flexo printing elements
US11624983B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2021 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Aug 31, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/2004
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure is directed to a system and method configured for curing non-reactive photopolymer collected by an absorbent blotting material during thermal processing of flexographic printing elements. Uncured non-reacted portions of the photopolymer are removed by contacting the one or more layers of photopolymer with the web of absorbent blotting material at an elevated temperature to soften or liquefy the uncured non-reacted portions of the one or more layers of photopolymer and absorb the softened or liquefied uncured non-reacted portions into the absorbent web of absorbent blotting material. The web of absorbent blotter material containing the absorbed softened or liquefied non-reacted portions of the photopolymer is exposed to actinic radiation from the one or more UV light sources to crosslink and cure the softened or liquefied non-reacted portions of the photopolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.