Patent · US Expired

Method of producing a printing ink-decorated packaging material, in particular for aseptic packages

US6534132B1 · kind B1 · utility

3Cited by

22References

7Claims

0Family size

Assignee

Tetra Laval Holdings & Finance S.A. · CH

Inventors

Rolf Lasson · Lund, SE
Christer Karlsson · Linköping, SE
Kaj Johansson · Timrå, SE
Zoltan Pusztai · Staffanstorp, SE

Key dates

Filing date	Nov 12, 1999
Grant date	Mar 18, 2003
Priority date	—
Expiry date	Nov 12, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65B55/10
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A method is disclosed for producing a printing ink decorated packaging material. The packaging material heat sealable outer coatings. One or both sides of the packaging material are subjected to corona discharge surface treatment to increase the surface tension. Printing is applied to the treated surface. The packaging material then passes the nip between heated rollers in order to reduce the surface energy of the outer plastic layers. Subsequently, a surface treatment of hydrogen peroxide is applied to the packaging material to sterilize the surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.