| 摘要 |
<p>PURPOSE:To obtain the title sheet having excellent adsorptivity and good air permeability by making the sheet from a mixture of fine-particle activated carbon having specified mean particle diameter, a supporting fiber having a specified outer surface area, and a water-swollen br thermally fusible fiber in a specified ratio. CONSTITUTION:The adsorptive sheet is made from a mixture contg. 10-80 pts.wt. of the fine-particle activated carbon having 60-150mum mean particle diameter, 5-50 pts.wt. of the supporting fiber having <=1m<2>/g outer surface area, and 1-30 pts.wt. of the water-swollen or thermally fusible fiber. An air-permeable reinforcing sheet is laminated on the adsorptive sheet, and the laminated sheet is used as an air cleaning filter. By this method, the adsorptive sheet having good air permeability, excellent adsorptivity to malodorous gases, and excellent workability in folding, etc., is obtained, and used as the adsorptive material for in air cleaning filter.</p> |
