| 摘要 |
PURPOSE:To reduce the moisture passage resistance to improve the fumidifying capability by employing a compound porous sheet as base material for a hollow-structured unit, said porous sheet comprising a water-repellent, high polymer, porous sheet that prohibits the passage of water but allows the passage of water vapor and a permeable fabric that allows the passage of both water and vapor, which are overlaid one upon another. CONSTITUTION:Water is supplied to the hollow space in the hollow-structured unit 5 that allows the passage of water vapor, and air blown to the hollow-structured unit 5 is humidified by adding water vapor passing through the hollow-structured unit 5 to it. As the base material, a compound porous sheet 1 is employed which comprises a water-repellent, high polymer, porous sheet that prohibits the passage of water but allows the passage of water vapor, and a permeable fabric that allows the passage of both water and vapor. The thickness of the porous sheet is more than 10mum for practical reasons, but is desirably less than 100mum to improve the humidifying performance and reduce the moisture passage resistance. The inner side of the hollow- structured unit 5 is made of the permeable fabric and the outer side made of the compound porous sheet 1. Since said fabric acts to protect and reinforce the surface of the hollow-structured unit 5, it can be a substitute for a spacer. In this manner, the humidifying capability is significantly improved.
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