Printing film
US5215814A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1991 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Apr 5, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31906
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A fast drying printing film composite for use in offset lithography and similar printing applications comprising a transparent, translucent or opaque film substrate having an ink receptive essentially transparent polymeric layer on at least one side of the substrate, said ink receptive layer containing one or more polymers or copolymers, at least one of said polymers or copolymers being soluble or swellable in an aliphatic hydrocarbon solvent, said ink receptive layer having a solvent absorptivity of Isopar G of from 14% to 45% by weight with respect to the weight of the ink receptive layer, a Sheffield surface roughness value of less than 140 cc of air/minute and an offset dry time of less than about two hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.