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Patent Searching and Data


Title:
PACKAGING BAG WITH MOISTURE ABSORPTION INDICATOR FUNCTION AND DRYING AGENT
Document Type and Number:
WIPO Patent Application WO/2006/082920
Kind Code:
A1
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).

Inventors:
CHIBA EISUKE (JP)
OGAWA TATSUYA (JP)
KOYAMA HIROSHI (JP)
KOIZUMI SHINICHI (JP)
Application Number:
PCT/JP2006/301858
Publication Date:
August 10, 2006
Filing Date:
February 03, 2006
Export Citation:
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Assignee:
KYODO PRINTING CO LTD (JP)
CHIBA EISUKE (JP)
OGAWA TATSUYA (JP)
KOYAMA HIROSHI (JP)
KOIZUMI SHINICHI (JP)
International Classes:
B65D30/02; B01D53/26; B32B7/02; B65D65/40; B65D79/02; B65D81/26; B65D81/30
Foreign References:
JPH0619816U1994-03-15
JPH06262028A1994-09-20
JPH0585424U1993-11-19
JPS63193527U1988-12-13
JPH01144345U1989-10-04
JP2004331855A2004-11-25
Other References:
See also references of EP 1849708A4
Attorney, Agent or Firm:
Fujii, Koichi (Kawamura Building 4-4, Toranomon 1-chom, Minato-ku Tokyo 01, JP)
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