Thermal dye diffusion transfer method and dye donor element for use therein
US5436217A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1994 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Nov 14, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/259
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method for making an image comprising the steps of: PA1 bringing a dye-layer comprised on the support of a dye donor element in face-to-face relationship with an image receiving layer comprised on a support of an image receiving element, said dye layer consisting of a repeating sequence of at least two dye frames each containing a dye dispersed or dissolved in a binder and, PA1 image-wise heating by means of thermal head each of said dye frames of said repeating sequence so as to cause image-wise transfer of dye from said dye layer to said image receiving layer characterised in that: said dye frames contain (a) particle(s) protruding from said dye layer, the last dye frame to be image-wise heated from said repeating sequence, containing said particle(s) in a reduced amount relative to the amount of said particle(s) in any of the other dye frames of said repeating sequence or alternatively said last dye frame being substantially free of said particle(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.