Continuous laminating system
US4268345A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Oct 18, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1741
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A continuous laminating system is disclosed wherein a pair of rotating laminating rollers are provided which form a laminating nip through which a product to be laminated together with sheets of laminating film are fed and pressed. A pair of rearwardly positioned pull rollers pull the laminating film through the laminating rollers together with the product. Adjacent each laminating roller a shoe-type heating member is provided which has a concave surface adjacent the respective laminating roller and a convex heating surface positioned so that the laminating film from each of the supply rollers slides over the heating surface and is heated prior to entry into the laminating nip. A Teflon-coated fiberglass layer is provided at least over portions of the convex heating surface over which the laminating film slides. Problems of scratching of the laminating film and squealing during processing are solved according to the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.