Dye diffusion thermal transfer printing
US6037309A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Mar 9, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/914
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A dye diffusion thermal transfer printing dye sheet comprising a substrate having a coating comprising a dye of Formula (1): ##STR1## wherein Ch is a chromogen; PA1 R.sup.a and R.sup.b each independently is a spacer group; PA1 Y is an interactive functional group selected from the group comprising OH and COOH; PA1 w and x each independently is 0 or an integer equal to or greater than 1; and PA1 m and n each independently is an integer equal to or greater than 1, provided that w and x are not both equal to 0 and when one of w or x is 0 at least one of m and n is equal to or greater than 2 and when Y represents hydroxy, m+n is greater than 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.