Color developing composition, lithographic printing plate precursor, plate making method for lithographic printing plate, and color developer
US10241400B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2017 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Apr 17, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/333
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color developing composition which develops colors in a high density and does not significantly discolor when aged, a lithographic printing plate precursor which has excellent plate-inspecting properties by means of color development and is capable of maintaining strong color development even when aged after color development, a plate making method for a lithographic printing plate in which the lithographic printing plate precursor is used, and a new compound that can be preferably used as a color developer. The color developing composition of the present invention includes a compound represented by Formula 1. The compound in the present invention is represented by Formula 1. In Formula 1, R1 represents a group in which an R1—O bond is cleaved by heat or exposure to infrared rays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.