Printed material for temperature sensing display package and packaging material using the same
US10900845B2 · kind B2 · utility
1Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2016 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Aug 7, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2203/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The purpose of the present invention is to display a printing layer expressed in various colors through the property of a temperature display ink layer turning transparent at high temperature of 60° C. or above, by forming the printing layer expressed with various colors on a printed film, and the temperature display ink layer on the top of the printing layer. To achieve the purpose, the present invention includes the printed film, the printing layer formed on the top of the printed film, and the temperature display ink layer formed on the top of the printing layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.