Method for the manufacture of sheetlike or weblike material provided with markings becoming apparent in transmitted light
US4629638A · kind A · utility
4Cited by
13References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1984 |
| Grant date | Dec 16, 1986 |
| Priority date | — |
| Expiry date | Sep 28, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24934
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention relates to a method for the manufacture of sheetlike or weblike material which is the carrier of markings apparent in transmitted light. The markings being produced in that sheets or webs of paper with marking of the desired type printed onto them are laminated to one another with the print-carrying surfaces facing towards one another and that the lamination is carried out with a thin plastic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.