发明名称 |
Packaging bag and drying agent with moisture absorption indicator function |
摘要 |
A packaging bag and a drying agent with a moisture absorption indicator function are provided without using a heavy metal harmful to the human body. The packaging bag includes a first packaging material (10) and a second packaging material (20). The first packaging material (10) is provided on an outermost side thereof with a transparent barrier film (12) having a barrier property against water vapor. The second packaging material (20) has a light-reflective or light-absorbing film (24) and a pattern printed layer (23) overlaid on a bag interior side thereof, the pattern printed layer (23) having a printed moisture-absorbing indicator pattern (30). A desiccant-containing resin film (11, 21) which becomes transparent due to moisture absorption is overlaid on a bag interior side of at least one of the first packaging material (10) and the second packaging material (20). The drying agent with a moisture absorption indicator function includes an indicator film layer (70) having a barrier film (75), a pattern printed layer (73) for a moisture absorption indicator, and a moisture-absorbing film (71) containing zeolite, the pattern printed layer (73) and moisture-absorbing film (71) being laminated in this order on the barrier film (75). The drying agent further includes a main desiccant layer (61) and a moisture permeable film (64) that are overlaid on the moisture-absorbing film (71).
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申请公布号 |
US8268421(B2) |
申请公布日期 |
2012.09.18 |
申请号 |
US20100967198 |
申请日期 |
2010.12.14 |
申请人 |
CHIBA EISUKE;OGAWA TATSUYA;KOYAMA HIROSHI;KOIZUMI SHINICHI;KYODO PRINTING CO., LTD. |
发明人 |
CHIBA EISUKE;OGAWA TATSUYA;KOYAMA HIROSHI;KOIZUMI SHINICHI |
分类号 |
B29D22/00;B29D23/00;B32B1/08 |
主分类号 |
B29D22/00 |
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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