Heat sealable coating for manual and electronic marking and process for heat sealing the image
US6531216B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2000 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Apr 12, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2826
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a heat sealable element, which comprises a support, a heat sealing layer comprising a thermoplastic polymer which melts in the range of 50-250° C., a wax which melts in the range of 50-250° C., or combinations thereof, and an image layer which comprises at least one polymer which is capable of selectively receiving and retaining water base colorants. The present invention further relates to a process for heat sealing an image, which comprises imaging the above-mentioned heat sealable element and heating the imaged element in order to melt the imaging layer and heat sealing layer to form substantially a single layer and encapsulating the water base colorant in the single layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.