Film for sheet fed printing, sheets formed from such film and labels formed from such sheets
US10457080B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2015 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Oct 22, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2003/0257
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A plurality of plastic sheets to be fed into a high speed printer for forming printed labels and similar articles and a stack of printed labels formed form the sheets. Each of the sheets or labels includes a core layer and opposed, upper and lower outer skin layers. The upper outer skin layer includes a polyolefin polymer as the predominant component, by weight, thereof and is capable of receiving printed indicia thereon. The core layer includes a polyolefin polymer as the predominant component, by weight, of the core layer; preferably a high crystallinity polypropylene homopolymer. The lower outer skin layer includes a polyolefin polymer as the predominant component by weight therein; the improvement wherein the lower outer skin layer includes a blend of organic and inorganic antiblocking agents or a blend of inorganic antiblocking agents; the blend including less than 10%, by weight, of the lower outer skin layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.