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1. 发明专利

JPH0352610A FILTER MEDIUM FOR AIR FILTER 失效
公开(公告)号：JPH0352610A
公开(公告)日：1991-03-06
申请号：JP18609789
申请日：1989-07-20
申请人： MITSUBISHI PAPER MILLS LTD , MITSUBISHI RAYON CO
发明人： YAMAZAKI TAKASHI , AOKI KUNIHIRO , TAKAHASHI HIROSHI
IPC分类号： B01D39/14 , B01D39/16
摘要： PURPOSE:To enhance the hydrofluoric acid resistance, etc., of the filter medium for air filters by laminating a filter layer consisting of only the org. fibers on the void layer side of a porous film of an org. polymer consisting of fine pores opened perpendicularly to the film plane and the void layer. CONSTITUTION:The filter layer consisting of only the org. fibers is laminated on the void layer side of the porous film consisting of the fine-pore layer having the pores which have 0.2 to 10mum average pore size and 35 to 95% opening rate and are opened substantially perpendicularly to the plane of the film and the void layer having the pore size large than the pore size of the fine-pore layer, by which the filter medium for air filters is formed. The filter layer is adequately the filter layer in which a part or the whole of the fibers consists of the fibers fibrillated to

2. 发明专利

JPH06254433A AIR FILTER 失效
公开(公告)号：JPH06254433A
公开(公告)日：1994-09-13
申请号：JP21517592
申请日：1992-08-12
申请人： MITSUBISHI PAPER MILLS LTD , FUJISHIMA AKIRA , SAITO TAMIO
发明人： EBIHARA ISAO , YAMAZAKI TAKASHI , HYODO KENJI , FUJISHIMA AKIRA , HASHIMOTO KAZUHITO , SAITO TAMIO
IPC分类号： B03C3/155 , B03C3/14
摘要： PURPOSE:To reduce the load of a blower motor by applying voltage across a plurality of conductive porous layers laminated by interposing permeable non-conductive layers in an air filter for an air cleaner for air conditioning or the like. CONSTITUTION:Two conductive porous layers 1 or more are laminated by interposing air permeable non-conductive layers 2 composed of a non-woven cloth or the like used as a filter medium to constitute a filter. For the conductive porous layers 2, wet and dry non-woven cloth containing conductive fibers or the like is used mostly, although not particularly specified. A non-woven cloth sheet into which metallic fibers are contained is used for the purpose. Power source terminals 5 connected with cathodes or anodes of a power source are disposed respectively on the conductive porous layers 1, 1, connected with the power source and voltage is applied among the conductive porous layers 1, 1. Also folding work can be carried out to increase the filter area.

3. 发明专利

JPH0561109B2 失效
公开(公告)号：JPH0561109B2
公开(公告)日：1993-09-03
申请号：JP11752584
申请日：1984-06-08
申请人： MITSUBISHI PAPER MILLS LTD
发明人： YAMAZAKI TAKASHI , MYAMOTO SHIGEHIKO
IPC分类号： B41M5/00 , B41M5/50 , B41M5/52 , D21H17/67 , D21H27/00 , D21H17/13

4. 发明专利

JPH0530386B2 失效
公开(公告)号：JPH0530386B2
公开(公告)日：1993-05-07
申请号：JP12169386
申请日：1986-05-26
申请人： MITSUBISHI PAPER MILLS LTD
发明人： SENOO SUEAKI , YAMAZAKI TAKASHI
IPC分类号： B41M5/00 , B41M5/50 , B41M5/52 , C08J7/04 , D21H19/38

5. 发明专利

JPH04240253A SPUN LACE NONWOVEN FABRIC HAVING EXCELLENT FORMATION AND ITS PRODUCTION 失效
公开(公告)号：JPH04240253A
公开(公告)日：1992-08-27
申请号：JP1936291
申请日：1991-01-18
申请人： MITSUBISHI PAPER MILLS LTD
发明人： OKU YASUYUKI , YAMAZAKI TAKASHI
IPC分类号： D04H1/492 , D04H1/542 , D21H25/00
摘要： PURPOSE:To obtain a spun lace nonwoven fabric having especially excellent formation and good drapeability, feeling and air-permeability by three- dimensionally interlocking short fibers having a specific fiber diameter and a specific length/diameter ratio. CONSTITUTION:The objective spun lace nonwoven fabric is composed of three- dimensionally interlocked short fibers having a fiber diameter of 1-5mum and a length (L) to diameter (D) ratio (L/D) of 2,000

6. 发明专利

JPH04197421A DEODORIZING FILTER MATERIAL AND PREPARATION THEREOF 失效
公开(公告)号：JPH04197421A
公开(公告)日：1992-07-17
申请号：JP32704590
申请日：1990-11-28
申请人： MITSUBISHI PAPER MILLS LTD
发明人： OKU YASUYUKI , YAMAZAKI TAKASHI
IPC分类号： B01D53/38 , B01D39/14 , B01D39/16 , B01D53/04 , B01D53/34 , B01D53/81 , D21F11/14
摘要： PURPOSE:To obtain a deodorizing filter material having good air permeability by forming the deodorizing filter material containing 50-97wt.% of an activated carbon fiber based on the weight of sheet and having a basis wt. of 50-300g/m and density of 0.08g/cm or less by a wet papermaking process. CONSTITUTION:A conjugate fiber consisting of a core component composed of a high m.p. synthetic resin and a sheath component composed of a low m.p. synthetic resin and an activated carbon fiber are used as essential components and an aqueous slurry containing these fibers is formed into a sheet by a wet papermaking process and the sheet is dried at temp. higher than the m.p. of the sheath component but lower than the m.p. of the core component to fuse the activated carbon fiber and the conjugate fiber. The obtained sheet is heat- treated at temp. higher than the drying temp. and lower than the m.p. of the core component of the conjugate fiber to obtain a deodorizing filter material containing 50-97wt.% of activated carbon fiber based on the weight of the sheet and having a basis wt. of 50-300g/m and density of 0.08g/cm or less. Since this filter material is formed by a wet papermaking process, the yield of the material is well and excellent air permeability is obtained.

7. 发明专利

JPH04171045A HEAT-RESISTANT AND FIRE RETARDANT ADSORBING MATERIAL 失效
公开(公告)号：JPH04171045A
公开(公告)日：1992-06-18
申请号：JP29926690
申请日：1990-11-05
申请人： MITSUBISHI PAPER MILLS LTD
发明人： OKU YASUYUKI , YAMAZAKI TAKASHI , MATSUOKA MASANOBU
IPC分类号： B01D53/04 , B01J20/28
摘要： PURPOSE:To obtain a fire retardant adsorbent having high adsorbing capacity by applying embossing processing to activated carbon fiber sheets formed from a specific composition by a papermaking process before laminating the same by a heat-resistant adhesive. CONSTITUTION:An activated carbon fiber sheet containing 40-87wt.% activated carbon fibers, 10wt.% aromatic polyamide staple fibers and 3-50wt.% pipe-like aromatic polyamide fibers as essential components is formed by a wet papermaking process and subsequently subjected to embossing processing. Further, a plurality of the embossed sheets are laminated so that the embossed apex parts 3, non-processed parts or embossed parts and the sheets 1 are bonded by a heat-resistant adhesive. The adsorbent thus obtained is heat-resistant and fire retardant and effectively performs adsorption.

8. 发明专利

JPH0434513B2 失效
公开(公告)号：JPH0434513B2
公开(公告)日：1992-06-08
申请号：JP27888784
申请日：1984-12-28
申请人： MITSUBISHI PAPER MILLS LTD
发明人： MYAMOTO SHIGEHIKO , YAMAZAKI TAKASHI
IPC分类号： B41M5/00 , B41M5/50 , B41M5/52 , D21H17/03

9. 发明专利

JPH02293011A LIQUID FILTER MEDIUM 失效
公开(公告)号：JPH02293011A
公开(公告)日：1990-12-04
申请号：JP11290389
申请日：1989-05-01
申请人： MITSUBISHI PAPER MILLS LTD
发明人： KANEHARA SHIGERU , YAMAZAKI TAKASHI
IPC分类号： B01D39/00
摘要： PURPOSE:To obtain the filter medium capable of being regenerated by backwashing by providing a filter bed consisting essentially of org. and/or inorg. fine powder and a binder on the surface of a base material consisting of the woven or nonwoven fabric of fibers at least on the upstream side of filtration. CONSTITUTION:The base material consisting of the woven or nonwoven fabric of fibers is used. In this case, a dry or wet nonwoven fabric contg. >=20wt.% extremely fine fiber having 5mum diameter is preferably used. The filter bed consisting essentially of org. and/or inorg. fine powder and a binder is provided on the surface of a base material at least on the upstream side of filtration. The filter bed is preferably controlled to 5 to 30g/m . The average grain diameter of the org. and/or inorg. tine powder of the filter bed is preferably controlled to

10. 发明专利

JPH0299108A AIR FILTER MEDIUM 失效
公开(公告)号：JPH0299108A
公开(公告)日：1990-04-11
申请号：JP24907888
申请日：1988-10-04
申请人： MITSUBISHI PAPER MILLS LTD , OSHITARI LABORATORY INC
发明人： YAMAZAKI TAKASHI , OSHITARI YOSHIMI
IPC分类号： B01D39/16
摘要： PURPOSE:To obtain air filter medium of high performance, having high efficiencies and low pressure losses, containing no glass fiber, causing thereby its volume to be reduced by burning it by combining fibers having a modified cross section with other fine fibers. CONSTITUTION:Organic fibers of 30-90wt.%, having a modified cross section of type T, X, Y, with fiber maximum projected diameter of 5mum or more; organic fibers of 5-40wt.%, part or all of which are fibrillated having a diameter of 1mum or less; and superfine organic fibers of 5-30wt.%, having a diameter of 1-5mum are mixed together. Since the air filter medium thus prepared contains no glass fiber, its volume can be reduced by burning it. Further, it has high chemical resistance such as hydrofluoric acid resistance, etc., and has high fine-dust collection efficiencies and low gas permeabilities.

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