Claims
- 1. A method of sterilizing sheet packaging material for producing sealed packages of pourable food products, comprising the step of:irradiating the packaging material with electrons by directing on to opposite faces of said sheet packaging material respective low-voltage electron beams, each having an energy of at most 100 keV, wherein the electrons do not completely penetrate the depth of the sheet packaging material.
- 2. The method as claimed in claim 1, further comprising the step of directing said electron beams simultaneously on to said opposite faces of said sheet packaging material.
- 3. The method as claimed in claim 1, wherein said step of directing each said electron beam comprises the steps of irradiating electrons and accelerating said electrons on to said opposite faces of said sheet packaging material.
- 4. The method as claimed in claim 3, wherein said step of accelerating said electrons is performed by applying an electric field generated by a potential difference of 90 kV or less.
- 5. The method as claimed in claim 4, wherein said potential difference is less than 80 kV.
- 6. The method as claimed in claim 1, wherein said sheet packaging material having a number of pre-applied auxiliary members.
- 7. The method as claimed in claim 1, wherein said sheet packaging material being in the form of a continuous web.
Priority Claims (1)
Number |
Date |
Country |
Kind |
99830534 |
Aug 1999 |
EP |
|
Parent Case Info
This application is a continuation-in-part of U.S. application Ser. No. 09/597,695, filed Jun. 19, 2000 now abandoned the entire content of which is hereby incorporated by reference.
US Referenced Citations (6)
Foreign Referenced Citations (4)
Number |
Date |
Country |
0 919 246 |
Jun 1999 |
EP |
1 027 874 |
Apr 1966 |
GB |
1 460 134 |
Dec 1976 |
GB |
58-216528 |
Dec 1983 |
JP |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09/597695 |
Jun 2000 |
US |
Child |
09/826041 |
|
US |