Developer sheet useful in providing transparencies or reproductions having a controlled gloss finish
US4859561A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1987 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Jul 14, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/254
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developer sheet useful in forming reproductions which have a controllable gloss finish or in forming transparencies comprising a support having a layer of a finely divided, thermoplastic, developer material on the surface thereof, said developer material being capable of reacting with a color precursor to produce a visible image and being capable of coalescing into a thin film which imparts gloss to said image upon application of heat and/or pressure. The developer sheet comprising a support having a layer of a finely divided thermoplastic developer material on the surface thereof can additionally comprise oil-containing microcapsules such that upon microcapsule rupture, the oil plasticizes the developer material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.