FILTER MEDIUM FOR AIR FILTER

PROBLEM TO BE SOLVED: To provide a filter medium for an air filter, not damaging the filter medium at a pleat processing time, carrying high strength by the filter medium, and excellent in pleat processing suitability.SOLUTION: There is provided a filter medium for an air filter having a support med...

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Bibliographische Detailangaben
1. Verfasser:	TANABE KUNIHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BRAIDING COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS KNITTING LACE-MAKING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL NON-WOVEN FABRICS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TEXTILES TRANSPORTING TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a filter medium for an air filter, not damaging the filter medium at a pleat processing time, carrying high strength by the filter medium, and excellent in pleat processing suitability.SOLUTION: There is provided a filter medium for an air filter having a support medium and a charged nonwoven-fabric layer. In the filter medium for the air filter, the support medium contains drawing polyester fibers, non-drawing polyester fibers as binder fibers, and a core-sheath type polyester composite fibers using copolymer polyester having a glass transition point of 40-80°C as a sheath part.SELECTED DRAWING: None 【課題】本発明の課題はプリーツ加工時に濾材を傷付けることなく、濾材が高い強度を持ち、プリーツ加工適性に優れたエアフィルタ用濾材を提供することである。【解決手段】支持体と帯電不織布層とを有するエアフィルタ用濾材であり、該支持体は、延伸ポリエステル繊維と、バインダー繊維として未延伸ポリエステル繊維とガラス転移点が４０〜８０℃の共重合ポリエステルを鞘部とする芯鞘型ポリエステル複合繊維を含有してなることを特徴とするエアフィルタ用濾材。【選択図】なし