SG25982G - Treatment of filter materials for use in dustproof masks - Google Patents

Treatment of filter materials for use in dustproof masks

Info

Publication number
SG25982G
SG25982G SG25982A SG25982A SG25982G SG 25982 G SG25982 G SG 25982G SG 25982 A SG25982 A SG 25982A SG 25982 A SG25982 A SG 25982A SG 25982 G SG25982 G SG 25982G
Authority
SG
Singapore
Prior art keywords
treatment
filter materials
dustproof masks
dustproof
masks
Prior art date
Application number
SG25982A
Original Assignee
Mitsubishi Heavy Ind Ltd
Ryomei Giken Kk
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 Mitsubishi Heavy Ind Ltd, Ryomei Giken Kk filed Critical Mitsubishi Heavy Ind Ltd
Publication of SG25982G publication Critical patent/SG25982G/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0464—Impregnants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0654—Support layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/069—Special geometry of layers
    • B01D2239/0695—Wound layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
SG25982A 1977-11-30 1982-06-08 Treatment of filter materials for use in dustproof masks SG25982G (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 (1)

Publication Number Publication Date
SG25982G true SG25982G (en) 1983-07-08

Family

ID=15323860

Family Applications (1)

Application Number Title Priority Date Filing Date
SG25982A SG25982G (en) 1977-11-30 1982-06-08 Treatment of filter materials for use in dustproof 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)

Families Citing this family (5)

* 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
GB9425138D0 (en) 1994-12-12 1995-02-08 Dynal As Isolation of nucleic acid
JP3578631B2 (en) * 1998-06-16 2004-10-20 サンエム・パッケージ株式会社 mask
JP2005538929A (en) 2002-01-16 2005-12-22 ダイナル バイオテック エイエスエイ Methods for isolating nucleic acids and proteins from a single sample
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

Also Published As

Publication number Publication date
FR2410498B1 (en) 1983-09-09
GB2009272A (en) 1979-06-13
NL7807720A (en) 1979-06-01
GB2009272B (en) 1982-03-31
JPS5475676A (en) 1979-06-16
DE2833219C3 (en) 1981-10-22
DE2833219A1 (en) 1979-05-31
DE2833219B2 (en) 1981-03-12
FR2410498A1 (en) 1979-06-29
JPS598164B2 (en) 1984-02-23

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