Substantially transparent printing blankets and methods for using same
US5974974A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Jul 1, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41N2210/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Substantially transparent printing blankets are provided comprising a substantially transparent printing layer disposed upon a substantially transparent support layer. The substantial transparency of such printing blankets permits off-press introduction of knock-out areas. In certain embodiments, this is accomplished by disposing the support layer of the printing blanket adjacent to a substrate which bears either an image to be printed or some other print transfer information (such as a negative) corresponding to the image. The print transfer information then is viewed through the printing blanket to identify portions of the underlying substrate which bear information indicating that print should not appear on a corresponding portion of the coated substrate. After such portions are identified, the printing layer is removed from the support layer in those areas of the printing blanket which are adjacent to the identified portions of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.