FILTER MATERIAL FOR AIR FILTER AND PRODUCTION METHOD THEREFOR

An object of the present disclosure is to provide a filter material for an air filter having improved particle collecting performance by providing a mesh-like network of polyvinyl alcohol, in a pore of a fluid permeation path of a support relatively, randomly in a plane direction and a thickness dir...

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Bibliographische Detailangaben
Hauptverfasser:	NEMOTO, Junji, TAMURA, Atsushi, FUKUSHIMA, Shota
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR GENERAL PROCESSES OF COMPOUNDING LAUNDERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS WORKING-UP
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Beschreibung
Zusammenfassung:	An object of the present disclosure is to provide a filter material for an air filter having improved particle collecting performance by providing a mesh-like network of polyvinyl alcohol, in a pore of a fluid permeation path of a support relatively, randomly in a plane direction and a thickness direction of the support. A method for producing a filter material for an air filter according to the present disclosure includes: an adhering step of getting a polyvinyl alcohol aqueous solution adhering to a support, having fluid permeability, to bring the support into a wet state; and a drying step of drying the polyvinyl alcohol aqueous solution adhering to the support in the wet state at 140°C or higher, in which the polyvinyl alcohol aqueous solution contains no other binder resins than polyvinyl alcohol, and the support, after the drying step, has the mesh-like network of polyvinyl alcohol, in the pore serving as a fluid permeation path, by drying the polyvinyl alcohol aqueous solution.