Wash-off label
US11639451B2 · kind B2 · utility
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9Claims
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Assignee
Inventor
Key dates
| Filing date | Jun 7, 2019 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Aug 16, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2826
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a wash-off label. According to an embodiment, the face film of the wash-off label comprises biaxially oriented plastic film and configured to shrink asymmetrically so that a difference between the shrinkage of the film in machine direction and in transverse direction is at least 55%, when exposed to washing liquid comprising caustic soda and having temperature in the range of 65-85° C. for equal or less than 5 minutes. The invention further relates to a use of the wash-off label and to a labelled article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.