Method for applying a hydrophilic colloid layer on a naked glass support
US5720840A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Jul 12, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/7954
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method is provided for applying any hydrophilic colloid layer on a naked glass support comprising the steps of PA1 (i) wetting a naked glass support, with a polar solvent comprising more than 1% water, PA1 (ii) applying the hydrophilic colloid layer, provided on a temporary support, onto the wet glass support, so that the hydrophilic colloid layer is in direct contact with the wetted glass and PA1 (iii) stripping the temporary support away. It is preferred that the wetting solution comprises an organic silicon compound. The method is especially suited for applying photographic layers on a naked glass support. By using this method no special adhesive layer is needed and all photographic properties are kept unimpaired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.