Polyethylene label and method of preparation thereof
US5227233A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1991 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Nov 6, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2848
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A label comprising a polyethylene film in which the degree of crosslinking inwardly decreases across the thickness of the film and on one side of which printing is performed, and an adhesive layer further formed thereon. The label is good in clarity, is possible to perform back surface printing, can provide an integral feeling and a high-class feeling as if curved-surface printing is performed on a cylindrical container itself, is sufficient in rigidity and strength and therefore is possible to be thinly formed, is resistant to water wetting and contamination, is unnecessary to be stripped in recovering and recycling a polyethylene bottle when the label is stuck thereon, can be stuck on the bottle concurrently with blow molding of the bottle printed, and is therefore suitable for use as a label for in-molding. Degassing is carried out by forming an uneven surface on the adhesive surface, whereby the blister phenomenon can be avoided when the label is stuck on the surface of a bottle concurrently with blow molding of the bottle. When a primer layer intervenes between printing ink and the adhesive layer, the label excellent in the adhesive strength between the printing ink and the ad…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.