Plastic article or earthenware shaping or treating: apparatus – Means applying electrical or wave energy directly to work – Radiated energy
Patent
1992-10-09
1994-10-04
Bushey, Charles S.
Plastic article or earthenware shaping or treating: apparatus
Means applying electrical or wave energy directly to work
Radiated energy
264 22, 264154, 425290, 425367, B26F 110
Patent
active
053521080
ABSTRACT:
This invention provides a porous film useful as a fresh fruit and vegetable wrapping material which is obtained by forming a large number of small recesses in an organic film and which does not allow permeation of water, bacteria, and viruses, but allows permeation of a gas, e.g., the oxygen gas or the carbon dioxide gas, and water vapor. The porous film includes the organic film and the large number of recesses formed in the organic film and having an average opening width of 0.5 .mu.m to 300 .mu.m and inner surfaces exhibiting affinity.
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Kagawa Seiji
Kagawa Yoichiro
Bushey Charles S.
Kagawa Seiji
Sudo Norito
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