| 摘要 |
A moisture absorbent material (drying material) furnished with indicator function without the use of heavy- metal-containing cobalt chloride, low-molecular organic substance, etc.; and a humidity indicator with which the state of humidity can be found in a convenient manner. There is provided moisture absorbent material with indicator function (10) comprising resin layer (11) containing 5 to 80 wt. % of zeolite and, superimposed on at least one surface thereof, a printed layer of characters, pattern, picture, etc., so that expression of the printed layer is realized through clearing of the resin layer (11) by moisture absorption. There is further provided humidity indicator (20) comprising film (21) of zeolite-containing resin composition overlaid using an adhesive with aluminum foil (26) or polyolefin film (22) printed with pattern (24) consisting of characters, symbols, lines, etc. with diversified printing densities, so that sequential viewing of the pattern (24) through clearing of the film (21) of zeolite-containing resin composition by moisture absorption is realized to thereby reveal space humidity. |
