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US5800901A Packing paper for baker's yeast 失效
面包酵母包装纸

Packing paper for baker's yeast
摘要:
A packing paper for baker's yeast, which is constituted by laminating, on one side of a base paper, at least a printing layer and a wax layer in this order and which has a carbon dioxide permeability of 400-2,000 cm.sup.3 /m.sup.2 .multidot.24 h.multidot.atm., an oxygen permeability of 100-600 cm.sup.3 /m.sup.2 .multidot.24 h.multidot.atm. and a moisture permeability of 50 g/m.sup.2 .multidot.24 h or less.
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