Pre-conditioning a substrate for accelerated dispersed dye sublimation printing
US5580410A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1994 |
| Grant date | Dec 3, 1996 |
| Priority date | — |
| Expiry date | Dec 14, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/0351
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A dispersed dye sublimation imaging method of a substrate includes a pre-conditioning step, before the substrate is imaged, which uses controlled heat and humidity. The pre-conditioning step, by raising the surface energy levels of the substrate and thermally stabilizing the substrate before pressured contact in the imaging zone, allows for more precise control of dye sublimation during image. Pre-conditioning also allows: the use of higher temperature dyes; the use of higher temperatures and shorter dwell times in the imaging zone; and/or the use of lower imaging temperatures. The pre-conditioning also provides for greater migration and penetration of the dispersed dye into the surface of the substrate being imaged. The shorter dwell time and thermally stabilized pre-conditioned substrate also reduces movement between the substrate and dye carrier device, which provides for increased resolution of the imaged substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.