To obtain a reaction container comprising a filtering material of high proof stress in usage, by using a metallic mesh filtering material manufactured by the electrocasting method, and having a pore of a specific diameter.
The desired shape of a filtering material is accurately plotted onto a drum film type-photoresist by a computer or the like and is laminated onto the surface of a cathode of a stainless plate. Then the same is made to sense the light by using a negative film, and developed, to form a resist pattern onto the surface, and further is washed by a surface active agent, and finished by the pure water. Then it is dipped into, for example, a watt bath type for activating the stainless plate surface of an area not having the resist pattern, and the predetermined electric current is flow made to from a cathode power supply. When the film reaches a predetermined thickness by the electrocasting, the electric current is cut off, and the stainless plate is taken out to be washed by the water. Then the nickel electrocasted plating formed on the stainless plate is separated to be used as the filtering material through the necessary processing. As mentioned in the above, the filtering material having, for example, a pore of 20-500μ, and an uniform diameter or length of one side, can be manufactured.
ARAO SHINSUKE
SHIMAMOTO KAZUTOSHI
SOFUE SUSUMU
NAKATSUKA YOKO
KUDO KATSUHIRO
WADA TATSUO
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