Control stretch laminating device
US4572752A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1984 |
| Grant date | Feb 25, 1986 |
| Priority date | — |
| Expiry date | Jun 22, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2301/3112
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A laminating apparatus for laminating plastic film material to a paper backing material to form a laminated composite. The apparatus comprises mechanical stretch control means for controlling the stretch or relaxation of the film material prior to lamination with the paper material. The apparatus also comprises means for monitoring the amount of film stretch in the laminated composite and providing data therefrom to a data processing unit which provides control signals to operate the mechanical stretch controlling means. Speed control means are additionally provided for each of the paper supply means, film supply means and composite web take up means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.