Textured photographic base paper process and product
US3959546A · kind A · utility
18Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Apr 15, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31993
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A polyolefin coated photographic base paper having a silk-like textured surface is prepared by extrusion coating the polyethylene on the photographic paper and, while the polyolefin is still plastic, forming the surface of the polyolefin on an engraved chill roll. Pattern depths of 0.4 to 0.7 mils can be produced on the polyolefin surface by this process using polyolefin films as thin as one mil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.