Packaging body and production method therefor
AssigneeDenka Company Limited
InventorsHiroyuki SHIOTSUKI, Teruhiro AIKYO, Takashi FUKUDA
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Abstract
A method for producing a packaging body of the present invention includes a production step of producing a metal oxide powder, and a sealing step of placing the metal oxide powder in a bag that is filled with at least one gas selected from the group consisting of a noble gas, nitrogen gas, oxygen gas, and dry air, followed by sealing the bag, the metal oxide powder being a silica powder or a magnesia powder, the bag having a moisture permeability as measured according to JIS Z 0222-1959 of 0.30 g/(m2·day) or less.
Claims11
A packaging body comprising
- a metal oxide powder and
- a bag that has the metal oxide powder placed therein and is sealed,
- the bag being filled with at least one gas selected from the group consisting of a noble gas, nitrogen gas, oxygen gas, and dry air,
- the metal oxide powder being a silica powder or a magnesia powder,
- the bag having a moisture permeability as measured according to JIS Z 0222-1959 of 0.30 g/(m2·day) or less.
A method for producing a packaging body, the method comprising
- a production step of producing a metal oxide powder, and
- a sealing step of placing the metal oxide powder in a bag that is filled with at least one gas selected from the group consisting of a noble gas, nitrogen gas, oxygen gas, and dry air, followed by sealing the bag,
- the metal oxide powder being a silica powder or a magnesia powder,
- the bag having a moisture permeability as measured according to JIS Z 0222-1959 of 0.30 g/(m2·day) or less.
Dependencies are inferred from the claim text.