Moisture absorbent material with indicator function, humidity indicator and packaging bag
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 29, 2010
Grant Date -
Jan 15, 2009
app pub date -
Nov 26, 2004
filing date -
Dec 3, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A moisture absorbent material (drying material) with an indicator function is provided without the use of cobalt chloride containing a heavy metal, low molecular organic substance and the like; and a humidity indicator permitting a state of humidity to be found in a simple manner is also provided. The moisture absorbent material with an indicator function (10) includes a resin layer (11) containing 5 to 80 wt % zeolite which is provided on at least one surface thereof with a printed layer including a character, shape, picture or the like, so that the printed layer may visibly appear due to the resin layer becoming transparent by moisture absorption. The humidity indicator (20) is formed by laminating a film (21) made of a zeolite-containing resin composition, a polyolefin film (22) having patterns (24) printed thereon that include characters, symbols, lines or the like, which are printed to have a difference in the print density, and an aluminum foil (26) through an adhesive, so that the patterns (24) may be made sequentially visible due to the film (21) made of the zeolite-containing resin composition becoming transparent by moisture absorption.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully