| 摘要 |
PROBLEM TO BE SOLVED: To provide an anti-bacterial lamination filter which has processability permitting the folding of a low pitch and can effectively remove microorganisms without proliferating them.SOLUTION: The anti-bacterial lamination filter comprises: a crude dust collecting sheet (A) which is arranged on the inlet side of fluid to be filtered and has a weight basis of 55 to 130 g/m; a fine dust collecting sheet (B) which constitutes an electret by means of charging treatment; and an adhesive material for adhering the sheet (A) and the sheet (B), wherein the following conditions (i) to (iv) are satisfied. (i) The thickness of the filter is 0.30 to 0.60 mm. (ii) The bending resistance according to a Gurley method of the filter is 100 to 500 mg. (iii) The pore volume of the sheet (A) is 75 to 85%. (iv) An anti-bacterial agent is added to the sheet (A) and the adhesive material. |
