In-mold label film and method
US5733615A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1995 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | May 17, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249978
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An oriented polymeric in-mold label film comprises a hot-stretched, annealed, linerless self-wound film lamina and has a face layer for printing and a base layer which includes a heat-activatable adhesive. The heat-shrinkability of the film is balanced thickness-wise to minimize curl and allow the film to be printed in conventional label-printing presses. An antistat may be included only in the charge for the base layer which includes the heat-activatable adhesive. In the manufacture of labelled blow-molded containers, sheets and labels formed from the film may be handled at high speeds while maintaining accurate registration and dimensional and positional integrity even in the absence of any reinforcing backing, yet the labels perform well on deformable containers such as shampoo bottles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.