Packaging bag with moisture absorption indicator function and drying agent
A desiccant and packaging bag technology, applied in the field of packaging bags, can solve the problems of not being able to identify the state of moisture absorption
Inactive Publication Date: 2012-02-22
KYODO PRINTING CO LTD
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The package cannot effectively identify the hygroscopic state from the outside
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0154] Embodiment 1 is: the first packaging material 10 is a laminated body of transparent barrier film / sealing film, and the second packaging material 20 is a laminated body composed of resin film / pattern printing film / aluminum foil laminated film containing desiccant (Fig. 4 (a)).
Embodiment 2
[0155] Embodiment 2 is: the first packaging material 10 is a laminated body of a transparent barrier film / sealing film, and the second packaging material 20 is a laminated body composed of a desiccant-containing resin film / pattern printing film / aluminum vapor-deposited film (Fig. 4 (a)).
Embodiment 3
[0156] Example 3 is: the first packaging material 10 is a laminate of a transparent barrier film / sealing film, and the second packaging material 20 is composed of a desiccant-containing resin film / pattern printing film / aluminum vapor-deposited film / transparent barrier film. stack (Fig. 4(b)).
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Abstract
A packaging bag with a moisture absorption indicator function and a drying agent where heavy metal harmful to human body is not employed. The packaging bag consists of a first packaging material (10) and a second packaging material (20), wherein a transparent barrier film (12) having water vapor barrier properties is provided on the outermost surface of the first packaging material (10), the second packaging material (20) comprises a laminate of a light reflecting or light absorbing film (24) and a pattern print film (23) printed with a moisture absorption indicator pattern (30) on the surface on the inner side of bag of that film, and resin films (11, 21) containing drying agent and becoming transparent by absorbing moisture are laminated on the surface on the inner side of bag 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 is composed of an indicator film layer (70) formed by laminating the moisture absorption indicator pattern print layer (73) and a moisture absorption film (71) containing zeolite sequentially on a barrier film (75), and a main drying agent layer (61) and a moisture transmitting film (64) laminated on the moisture absorption film (71).
Description
technical field [0001] The invention relates to a packaging bag with a moisture absorption indicating function and a desiccant with a moisture absorption indicating function, in particular to: after storing items requiring moisture protection, such as food, electronic components, medicines, documents, etc., into the packaging bag When resealing, the moisture absorption state in the bag can be visually observed, and at the same time, the moisture-proof performance of the packaging bag itself can be confirmed; and the main desiccant is composed of a sheet or film, or a desiccant molded body, and has an indication of the desiccant. Desiccant in the form of flakes, plates or bags for indicating the moisture absorption state. Background technique [0002] In general, dry products are filled with desiccants such as silica gel and calcium chloride in pouches and enclosed in a package before use, and the operability of the package is poor. In addition, silica gel itself is a white ...
Claims
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IPC IPC(8): B65D30/02B65D65/40B65D79/02B65D81/26B65D81/30B01D53/26B32B7/02
Inventor 千叶英辅小川达也小山拓小泉真一
Owner KYODO PRINTING CO LTD