| 摘要 |
PURPOSE:To enhance pressure resistance and liquid-tight properties of a filtra tion membrane and to make the effective filtration area of the filtration membrane large by subjecting both upper and lower surfaces of a lamellate support having a passage of fluid to treatment such as corona discharge and thereafter using a specified adhesive to bond and seal the above-mentioned support and the filtration membrane. CONSTITUTION:After subjecting both upper and lower surfaces of a lamellate support 20 having a passage of fluid to treatment such as corona discharge, glow discharge, ultraviolet-ray irradiation and pickling, a filtration membrane 2 is bonded. In case of bonding the filtration membrane 2 and the support 20, an adhesive 17 of a polymer soln. contg. a solvent non-dissolving both members is applied, i.e., on inner and outer peripheral rims 3, 13, and both a network body 6 and the filtration membrane 2 are brought into contact from the upper part thereof. |
