Printing methods
US10353334B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2015 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Jun 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for determining coat weight of a printed transparent electrophotographic composition is described, in which a calibration composition is added to a transparent liquid electrophotographic composition to produce a test composition, the calibration composition comprising a carrier liquid, a polymer resin, and at least 5 wt. % of an optical brightening agent based on the total solids content of the calibration composition. The test composition is electrophotographically printed onto a test substrate to produce the printed transparent electrophotographic ink composition; the fluorescence of the printed transparent electrophotographic composition is measured; and the coat weight of the printed transparent electrophotographic composition is determine based on the fluorescence of the printed transparent electrophotographic composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.