Thermal transfer ribbon and base film thereof
US6303228A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 22, 2000 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Mar 22, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31797
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A base film for a thermal transfer ribbon which is a biaxially oriented polyester film comprising polyethylene-2,6-naphthalene dicarboxylate as a main constitutional element, wherein in a temperature-dimensional change curve under load in a longitudinal direction of the film, the dimensional change from the original length of the film at temperatures of up to 200.degree. C. is 1.0% or less and the dimensional change from the original length of the film at temperatures of up to 230.degree. C. is 3.0% or less. This film may have a coating layer of at least one water-soluble or water-dispersible resin selected from the group consisting of an urethane resin, polyester resin, acrylic resin and vinyl resin-modified polyester resin, on one side thereof. The base film gives a thermal transfer ribbon which has excellent adhesion to a sublimation-type ink layer and excellent printing performance without blurred ink at the time of high-speed printing and without wrinkles formed by friction with a head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.