发明名称 |
Uv radiation and vapor-phase hydrogen peroxide sterilization of packaging |
摘要 |
The present invention discloses a method and apparatus for sterilizing cartons with vapor-phase hydrogen peroxide and ultraviolet radiation on a packaging machine. A partially formed carton is first sprayed at a bottom forming station with a sterilant. Then, the carton is transported to a sterilization station where the carton is sprayed with gaseous hydrogen peroxide thereby allowing the gas to condense on the packaging material. The carton is then conveyed to a UV radiation source for irradiation of the packaging material. The carton is then dried with heated air to flush/remove any residual hydrogen peroxide. The present invention sterilizes the carton allowing for filling of the packaging material with a desired product such as milk, juice or water. The invention allows for the efficacious use of hydrogen peroxide having a concentration of up to 53% while providing a packaging material having less than 0.5 ppm hydrogen peroxide. The method and apparatus of the present invention allows for the fabrication of a shelf-stable food product. |
申请公布号 |
AU8767998(A) |
申请公布日期 |
1999.03.08 |
申请号 |
AU19980087679 |
申请日期 |
1998.08.04 |
申请人 |
TETRA LAVAL HOLDINGS & FINANCE SA |
发明人 |
RONALD SWANK;SEVUGAN PALANIAPPAN |
分类号 |
A61L2/10;A61L2/20;B65B55/04;B65B55/08;B65B55/10;B65B61/18 |
主分类号 |
A61L2/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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