Method for automatic low-bacteria to aseptic filling and packing of foodstuffs employing ultraviolet radiation
US4175140A · kind A · utility
27Cited by
15References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 26, 1977 |
| Grant date | Nov 20, 1979 |
| Priority date | — |
| Expiry date | Jul 26, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B55/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The automatic filling and packaging of foodstuffs under aseptic to low-bacterial count conditions is accomplished by disinfecting a packaging material for at least one second by means of high-intensity ultraviolet radiation, generated by a high-current, low-pressure mercury discharge with a current density of more than 1 A/cm.sup.2 and a mercury pressure of 5.times.10.sup.-3 to 5.times.10.sup.-1 Torr, wherein the spectral radiation intensity of the 253.7 nm line of the ultraviolet radiation UV on the packaging material 1, 2, 3 is set to at least 0.05 W/cm.sup.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.