Shrink wrap label coating to facilitate recycling
US10662349B2 · kind B2 · utility
0Cited by
7References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2018 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Aug 10, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention discloses a method of enabling the easy separation of labels, including wrap around labels and sleeve labels, particularly shrink sleeve labels, from containers during recycling through the use of a specially formulated coating to be applied in the seam area. The coatings ensure proper bonding, and shrink properties, of the labels, and have been designed to help de-bonding of the seam in a hot caustic wash step, or a solvent wash step. The method does not rely on floatation separation and therefore may be applied to any container/label material combination regardless of their specific gravity differences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.