| 摘要 |
<p>PROBLEM TO BE SOLVED: To absorb steam in a conveying container by using a gas permeable and water impermeable package material as a material for an absorbing packet and an absorbing material to be housed in the package material. SOLUTION: A package material comprises a binder which connects a micro- porous gas permeable film, a gas permeable support film, and a micro-porous film to the gas permeable support film. After a film material to be the package material is formed, an absorbing material formed out of a calcium chloride and a clay or a starch product is led in between film layers of the film material. Next, an edge of a packet is sealed so as to form an absorbing packet. For the micro-porous film, a micro-porous polyethylene sheet which contains a calcium chloride as a filler is used. Also, for the gas permeable support film which supports the micro-porous film layer, an nonwoven fabric obtained by fabricating a polyester and/or polypropylene fiber is used.</p> |
