Method and device for laminating layers of identification cards, or the like
US5399223A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1992 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Dec 18, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2425/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
For laminating layers consisting at least in part of thermoplastic films, in particular for producing identification cards, or the like, carrying information and/or data, a method is proposed where the blank, after having been introduced between pressing dies, is initially subjected to the pressure and heat required for complete lamination of the blank. Heat dissipation is prevented during heating by the fact that cooling components are kept at a predetermined distance from the heating surfaces. During a subsequent transition from heating to cooling, the heating effect is terminated and cooling bodies are brought into contact with the pressing and heating components, for reducing the temperature of the completely laminated product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.