Thermal printing ink medium
US5387460A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1992 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Oct 13, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31681
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal printing ink medium which electrically generates heat to transfer an ink thereof to a transfer material to form an image thereon is disclosed, which comprises a first heating element layer, a second heating element layer in contact with said first heating element layer, said second heating element layer having a greater volume resistivity than said first heating element layer, a conductive layer in contact with said second heating element layer, an ink layer provided on the side of said conductive layer opposite to said second heating element layer, and an adhesion-improving layer formed on the interface between said conductive layer and second heating element layer by the interaction therebetween so as to have a given volume resistivity. The thermal printing ink medium has advantages of (1) broadened choice of materials for an ink layer and ease in coloring the ink layer, (2) production ease and economy, (3) stable printing quality, (4) feasibility of repeated use, (5) an increased energy efficiency in image printing, (6) freedom from surface damage, (7) a reduced peak temperature of heat generation in a heat generating layer, and (8) high resolving power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.