FR2273101A1 - - Google Patents

Info

Publication number
FR2273101A1
FR2273101A1 FR7505599A FR7505599A FR2273101A1 FR 2273101 A1 FR2273101 A1 FR 2273101A1 FR 7505599 A FR7505599 A FR 7505599A FR 7505599 A FR7505599 A FR 7505599A FR 2273101 A1 FR2273101 A1 FR 2273101A1
Authority
FR
France
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.)
Granted
Application number
FR7505599A
Other languages
French (fr)
Other versions
FR2273101B3 (ru
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.)
Bekaert NV SA
Original Assignee
Bekaert NV SA
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 Bekaert NV SA filed Critical Bekaert NV SA
Publication of FR2273101A1 publication Critical patent/FR2273101A1/fr
Application granted granted Critical
Publication of FR2273101B3 publication Critical patent/FR2273101B3/fr
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • 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
    • 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
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2003—Glass or glassy material
    • B01D39/2017—Glass or glassy material the material being filamentary or fibrous
    • 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
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2027—Metallic material
    • B01D39/2041—Metallic material the material being filamentary or fibrous
    • 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
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2055—Carbonaceous material
    • B01D39/2065—Carbonaceous material the material being fibrous
    • 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
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B01D39/2082—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4234—Metal fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • 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
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0241—Types of fibres, filaments or particles, self-supporting or supported materials comprising electrically conductive fibres or particles
    • 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
    • B01D2239/0471—Surface coating material
    • B01D2239/0478—Surface coating material on a layer of the filter
    • 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
    • B01D2239/0471—Surface coating material
    • B01D2239/0492—Surface coating material on fibres
    • 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
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0627—Spun-bonded
    • 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
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/064—The fibres being mixed
    • 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
    • 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
    • B01D2239/0659—The layers being joined by needling
    • 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
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1233—Fibre diameter

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Nonwoven Fabrics (AREA)
FR7505599A 1974-03-22 1975-02-24 Expired FR2273101B3 (ru)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7403948A NL7403948A (nl) 1974-03-22 1974-03-22 Werkwijze ter vervaardiging van een vezelvlies en een aldus verkregen vezelvlies.

Publications (2)

Publication Number Publication Date
FR2273101A1 true FR2273101A1 (ru) 1975-12-26
FR2273101B3 FR2273101B3 (ru) 1977-01-21

Family

ID=19821024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7505599A Expired FR2273101B3 (ru) 1974-03-22 1975-02-24

Country Status (17)

Country Link
JP (1) JPS50126978A (ru)
AT (1) AT346080B (ru)
AU (1) AU7874475A (ru)
BE (1) BE825914A (ru)
BR (1) BR7501691A (ru)
CH (1) CH589739A5 (ru)
DE (2) DE2512621A1 (ru)
DK (1) DK119175A (ru)
ES (1) ES435865A1 (ru)
FR (1) FR2273101B3 (ru)
GB (1) GB1490116A (ru)
IE (1) IE40870B1 (ru)
IT (1) IT1032375B (ru)
LU (1) LU71980A1 (ru)
NL (1) NL7403948A (ru)
SE (1) SE7503071L (ru)
ZA (1) ZA751190B (ru)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1018937A3 (nl) * 2009-09-24 2011-11-08 Wattex Nv Werkwijze voor het vervaardigen van een versterkt vlies, in het bijzonder voor een bitumineuse dakbaan.
CN103752085A (zh) * 2013-12-09 2014-04-30 吴江市蓓盛纺织品有限公司 一种新型过滤布料

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS532605A (en) * 1976-06-24 1978-01-11 Ichikawa Woolen Textile Production of paper making felt
JPS532675A (en) * 1976-06-30 1978-01-11 Ichikawa Woolen Textile Manufacture of wideewidth needle felt
JPS5314878A (en) * 1976-07-21 1978-02-09 Ichikawa Woolen Textile Manufacture of unwoven fabric with optional width
DE2746796C2 (de) * 1977-10-18 1988-06-16 Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen Verfahren zur Herstellung einer Verbundmatte in Form eines Formteils zur Auskleidung von Schalldämpfern an Abgasrohren
JPS54106377U (ru) * 1977-12-23 1979-07-26
AU517708B2 (en) * 1978-01-12 1981-08-20 Dunlop Limited Carbon composite brake disc manufacture
US4590122A (en) * 1980-12-18 1986-05-20 Fiberite Corporation High conductivity graphite material with electrically conductive filaments wrapped around warp and fill elements
JPS58143886U (ja) * 1982-03-23 1983-09-28 オリエンタル・アスベスト株式会社 金属繊維糸入りガラス不織布
JPS58143885U (ja) * 1982-03-23 1983-09-28 オリエンタル・アスベスト株式会社 炭素繊維ヤ−ン入りガラス不織布
IT1162865B (it) * 1983-05-23 1987-04-01 Fiat Auto Spa Carta da filtro conduttiva elettricamente e filtro utilizzante tale carta
FR2566437B1 (fr) * 1984-06-26 1986-12-26 Lnt Tissu composite deformable et extensible dans toutes les directions, incluant des elements metalliques
DE3724327A1 (de) * 1987-07-22 1989-02-09 Lohmann Gmbh & Co Kg Schuhinnensohle, insbesondere zwischen- oder brandsohle
GB8723861D0 (en) * 1987-10-10 1988-01-27 Lantor Uk Ltd Improvements in or relating to non-woven fabrics
JP3091972B2 (ja) * 1990-05-26 2000-09-25 鈴木 誠 異繊維材料を混在したウェブ及びそのウェブを用いた飾り糸の製造方法と装置
IT1241450B (it) * 1990-12-27 1994-01-17 Saval Srl Materiale tessile non tessuto realizzato attraverso un procedimento dimiscelazione intima di fibre e filamenti continui di polimeri sintetici e/o naturali.
DE4109692C2 (de) * 1991-03-23 1995-06-22 Filzfabrik Schwabach Gmbh Verfahren zum Herstellen von gewalktem Filz
EP0709508A1 (en) * 1994-10-25 1996-05-01 Schuller International, Inc. Method of forming a blanket of uniform thickness
DE19960694B4 (de) * 1999-12-16 2005-02-10 Johns Manville Europe Gmbh Verfahren zur Herstellung eines Isolierkörperformteils und Isolierkörperformteil zur Tieftemperaturisolierung
DE10031591B4 (de) * 2000-06-29 2005-11-17 Bwf Tec Gmbh & Co. Kg Textiler Verbundwerkstoff
GB201017306D0 (en) * 2010-10-13 2010-11-24 Ecotechnilin Ltd Fibre mats
ITMI20130733A1 (it) * 2013-05-07 2014-11-08 Filtecno S R L Struttura composita di tessuto non tessuto, metodo ed apparecchiatura per la sua produzione
CN104711775B (zh) * 2015-04-01 2017-07-21 赵晓明 一种连续分散型长丝纤维针刺毡及其制备方法
CN107849767A (zh) * 2015-07-13 2018-03-27 可乐丽日常生活株式会社 无纺布复合体及其制造方法
CN107050998A (zh) * 2017-02-27 2017-08-18 辽宁鸿盛环境技术集团有限公司 一种无机纤维机织滤料及制备方法
CN112166212B (zh) * 2018-05-29 2023-04-07 耐克创新有限合伙公司 用于具有可变区域特性的非织造织物的方法
CN108411493B (zh) * 2018-05-30 2024-01-05 河北祥致家纺有限公司 一种夹携式辅网机
CN113846424B (zh) * 2021-09-26 2022-11-15 航天特种材料及工艺技术研究所 一种莫来石纤维针刺毡及其制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1018937A3 (nl) * 2009-09-24 2011-11-08 Wattex Nv Werkwijze voor het vervaardigen van een versterkt vlies, in het bijzonder voor een bitumineuse dakbaan.
CN103752085A (zh) * 2013-12-09 2014-04-30 吴江市蓓盛纺织品有限公司 一种新型过滤布料

Also Published As

Publication number Publication date
NL7403948A (nl) 1975-09-24
BR7501691A (pt) 1975-12-23
AT346080B (de) 1978-10-25
AU7874475A (en) 1976-09-09
GB1490116A (en) 1977-10-26
IE40870B1 (en) 1979-08-29
FR2273101B3 (ru) 1977-01-21
DE2512621A1 (de) 1975-09-25
IE40870L (en) 1975-09-22
IT1032375B (it) 1979-05-30
CH589739A5 (ru) 1977-07-15
ZA751190B (en) 1976-01-28
LU71980A1 (ru) 1975-08-20
SE7503071L (ru) 1975-09-23
ES435865A1 (es) 1977-03-01
BE825914A (nl) 1975-08-25
JPS50126978A (ru) 1975-10-06
ATA219375A (de) 1978-02-15
DE7509146U (de) 1978-04-20
DK119175A (ru) 1975-09-23

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