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1. WO2022003965 - FILTER MEDIUM FOR AIR FILTERS AND METHOD FOR PRODUCING SAME

Publication Number WO/2022/003965
Publication Date 06.01.2022
International Application No. PCT/JP2020/026245
International Filing Date 03.07.2020
IPC
B01D 39/20 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
39Filtering material for liquid or gaseous fluids
14Other self-supporting filtering material
20of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
D21H 13/40 2006.1
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
13Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
36Inorganic fibres or flakes
38siliceous
40vitreous, e.g. mineral wool or glass fibres
D04H 1/4218 2012.1
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40from fleeces or layers composed of fibres without existing or potential cohesive properties
42characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
4209Inorganic fibres
4218Glass fibres
CPC
B01D 39/20
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
39Filtering material for liquid or gaseous fluids
14Other self-supporting filtering material ; ; Other filtering material
20of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
D04H 1/4218
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40from fleeces or layers composed of fibres without existing or potential cohesive properties
42characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
4209Inorganic fibres
4218Glass fibres
D21H 13/40
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
13Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
36Inorganic fibres or flakes
38siliceous
40vitreous, e.g. mineral wool, glass fibres
Applicants
  • 北越コーポレーション株式会社 HOKUETSU CORPORATION [JP]/[JP]
Inventors
  • 田代 希 TASHIRO, Nozomi
  • 佐藤 正 SATO, Masashi
Agents
  • 今下 勝博 IMASHITA, Katsuhiro
  • 岡田 賢治 OKADA, Kenji
Priority Data
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) FILTER MEDIUM FOR AIR FILTERS AND METHOD FOR PRODUCING SAME
(FR) MILIEU FILTRANT POUR FILTRES À AIR ET PROCÉDÉ POUR SA PRODUCTION
(JA) エアフィルタ用濾材及びその製造方法
Abstract
(EN) The present disclosure addresses the problem of providing: a filter medium for air filters, said filter medium achieving a high PF value and high water repellency, while having practically sufficient stiffness and strength; and a method for easily producing this filter medium. A filter medium for air filters according to the present disclosure is formed of a wet nonwoven fabric that contains glass fibers, and this filter medium for air filters is characterized in that a cationic binder resin, a fluorine resin and a cationic surfactant are contained in this filter medium, and the solid content mass ratio of the fluorine resin to the surfactant is within the range of from 30/70 to 80/20.
(FR) La présente invention aborde le problème de la fourniture de : un milieu filtrant pour filtres à air, ledit milieu filtrant présentant une valeur PF élevée et un caractère hydrofuge élevé, tout en présentant une rigidité et une résistance suffisantes en pratique ; et un procédé pour la production aisée de ce milieu filtrant. Un milieu filtrant pour filtres à air selon la présente invention est formé d'un tissu non tissé humide qui contient des fibres de verre et ce milieu filtrant pour filtres à air est caractérisé en ce qu'une résine liante cationique, une résine fluorée et un tensioactif cationique sont contenus dans ce milieu filtrant et le rapport massique des teneurs solides en résine fluorée et en tensioactif se situe dans la plage de 30/70 à 80/20.
(JA) 本開示の課題は、実用上十分な剛度及び強度を有しながら高いPF値及び撥水性を有するエアフィルタ用濾材を提供すること及びその濾材を容易な製法で提供することである。本開示に係るエアフィルタ用濾材は、ガラス繊維を含む湿式不織布からなるエアフィルタ用濾材において、該濾材は、カチオン性のバインダー樹脂、フッ素樹脂及びカチオン性の界面活性剤を含み、前記フッ素樹脂と前記界面活性剤との固形分質量比率が30/70~80/20の範囲にあることを特徴とする。
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