GB2009272B - Treatment of filter materials for use in dust-proof masks - Google Patents

Treatment of filter materials for use in dust-proof masks

Info

Publication number
GB2009272B
GB2009272B GB7830189A GB7830189A GB2009272B GB 2009272 B GB2009272 B GB 2009272B GB 7830189 A GB7830189 A GB 7830189A GB 7830189 A GB7830189 A GB 7830189A GB 2009272 B GB2009272 B GB 2009272B
Authority
GB
United Kingdom
Prior art keywords
dust
treatment
filter materials
proof masks
masks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB7830189A
Other versions
GB2009272A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ryomei Engineering Co Ltd
Mitsubishi Heavy Industries Ltd
Original Assignee
Ryomei Engineering Co Ltd
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ryomei Engineering Co Ltd, Mitsubishi Heavy Industries Ltd filed Critical Ryomei Engineering Co Ltd
Publication of GB2009272A publication Critical patent/GB2009272A/en
Application granted granted Critical
Publication of GB2009272B publication Critical patent/GB2009272B/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/08Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0464Impregnants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065More than one layer present in the filtering material
    • B01D2239/0654Support layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/069Special geometry of layers
    • B01D2239/0695Wound layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10Filtering material manufacturing
GB7830189A 1977-11-30 1978-07-18 Treatment of filter materials for use in dust-proof masks Expired GB2009272B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14279877A JPS598164B2 (en) 1977-11-30 1977-11-30 Tanning equipment for filter materials such as dust masks

Publications (2)

Publication Number Publication Date
GB2009272A GB2009272A (en) 1979-06-13
GB2009272B true GB2009272B (en) 1982-03-31

Family

ID=15323860

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7830189A Expired GB2009272B (en) 1977-11-30 1978-07-18 Treatment of filter materials for use in dust-proof masks

Country Status (6)

Country Link
JP (1) JPS598164B2 (en)
DE (1) DE2833219C3 (en)
FR (1) FR2410498A1 (en)
GB (1) GB2009272B (en)
NL (1) NL7807720A (en)
SG (1) SG25982G (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7989614B2 (en) 1994-12-12 2011-08-02 Invitrogen Dynal As Isolation of nucleic acid
US8110351B2 (en) 2002-01-16 2012-02-07 Invitrogen Dynal As Method for isolating nucleic acids and protein from a single sample

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3305559C2 (en) * 1983-02-18 1985-05-30 Lübecker Perlit Franz Potenberg KG (GmbH & Co), 2400 Lübeck Process for the production of a perlite filter aid and device for carrying out the process
JP3578631B2 (en) * 1998-06-16 2004-10-20 サンエム・パッケージ株式会社 mask
CN108909044A (en) * 2018-08-21 2018-11-30 湖州银轴智能装备有限公司 Creped paper die-moulding worktable

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB494033A (en) * 1937-05-28 1938-10-19 Albert Theodore King Improvements in milling and softening fabrics and fibrous materials
US2514145A (en) * 1946-03-29 1950-07-04 Felters Company Filter material
CH316721A (en) * 1953-08-04 1956-10-31 Mueller Paul A Filter material
US3062378A (en) * 1959-03-30 1962-11-06 Southwick W Briggs Filter element and method
CH466957A (en) * 1965-07-16 1968-12-31 Luwa Ag Method and device for the manufacture of filter inserts
GB1199418A (en) * 1966-11-21 1970-07-22 Purolator Inc Fluid Filter.
US3541829A (en) * 1968-09-06 1970-11-24 American Air Filter Co Tapered separator for pleated filter and apparatus for making the same
CH526276A (en) * 1971-05-13 1972-08-15 Celfil Co Method and device for the production of filter material webs for tobacco product filters, in particular cigarette filters
US3850600A (en) * 1973-07-05 1974-11-26 Mine Safety Appliances Co Filter media

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7989614B2 (en) 1994-12-12 2011-08-02 Invitrogen Dynal As Isolation of nucleic acid
US8691969B2 (en) 1994-12-12 2014-04-08 Life Technologies As Isolation of nucleic acid
US8110351B2 (en) 2002-01-16 2012-02-07 Invitrogen Dynal As Method for isolating nucleic acids and protein from a single sample

Also Published As

Publication number Publication date
DE2833219A1 (en) 1979-05-31
SG25982G (en) 1983-07-08
DE2833219C3 (en) 1981-10-22
NL7807720A (en) 1979-06-01
JPS598164B2 (en) 1984-02-23
FR2410498B1 (en) 1983-09-09
JPS5475676A (en) 1979-06-16
FR2410498A1 (en) 1979-06-29
DE2833219B2 (en) 1981-03-12
GB2009272A (en) 1979-06-13

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee