The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2003
Filed:
Nov. 12, 1999
Applicant:
Inventors:
Rolf Lasson, Lund, SE;
Christer Karlsson, Bjärred, SE;
Kaj Johansson, Röstånga, SE;
Zoltan Pusztai, Staffanstorp, SE;
Assignee:
Tetra Laval Holdings & Finance S.A., Pully, CH;
Primary Examiner:
Int. Cl.
CPC ...
H05H 1/24 ; B05D 3/06 ; B05D 3/12 ; B05D 3/10 ; B65B 5/510 ; D21H 2/136 ;
U.S. Cl.
CPC ...
H05H 1/24 ; B05D 3/06 ; B05D 3/12 ; B05D 3/10 ; B65B 5/510 ; D21H 2/136 ;
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.