KR840006778A - Method for recovering raw material from magnetic tape chips and its device - Google Patents

Method for recovering raw material from magnetic tape chips and its device Download PDF

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Publication number
KR840006778A
KR840006778A KR1019830005468A KR830005468A KR840006778A KR 840006778 A KR840006778 A KR 840006778A KR 1019830005468 A KR1019830005468 A KR 1019830005468A KR 830005468 A KR830005468 A KR 830005468A KR 840006778 A KR840006778 A KR 840006778A
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pieces
tape
tape pieces
magnetic
composite
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KR1019830005468A
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Korean (ko)
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야스오 이와다
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야스오 이와다
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/10—Making granules by moulding the material, i.e. treating it in the molten state
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0293—Dissolving the materials in gases or liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0293—Dissolving the materials in gases or liquids
    • B29B2017/0296—Dissolving the materials in aqueous alkaline solutions, e.g. NaOH or KOH
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12—Paper, e.g. cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B29L2009/005—Layered products coated
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

내용 없음No content

Description

자기테이프 부스러기로부터의 원료회수 방법과 그 장치Raw material recovery method from magnetic tape scrap and its apparatus

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

도면은 본 발명의 실시예 1를 개략적으로 표시한 구성도.Figure is a schematic diagram showing a first embodiment of the present invention.

Claims (10)

(가) 자기테이프부스러기를 세편상(細片狀)으로 재단하는 공정과, (나) 재단된 자기테이프세편을 알칼리수용액에 침지하여 팽윤(澎潤)시키는 공정과, (다) 팽윤된 자기테이프세편을 수중에서 고속교반하여 기재(base)테이프 세편과 자성체 분말로 분리하는 공정과, (라) 분리된 기재테이프세편을 수세, 탈수하는 공정과, (마) 기재테이프세편을 감압하에서 가열하면서 고속교반하므로써 커얼시켜서 짧은 종이노끈 모양으로 성형하는 동시에 기재테이프세편중의 수분을 0.01%미만에까지 건조시키는 공정과, (바) 건조되어서 종이노끈모양으로 성형된 기재테이프세편을 용융압출재단기에 공급하여 펠릿화하는 공정을 포함하는 것을 특징으로 하는 자기테이프 부스러기로부터의 원료회수 방법.(A) The process of cutting the magnetic tape crumbs into three pieces, (B) The process of dipping and swelling the cut magnetic tape pieces in an alkaline aqueous solution, and (C) The swollen magnetic tape. (A) washing and dehydrating the separated base tape pieces, and (e) heating the base tape pieces under reduced pressure, using a high speed stirring step of the three pieces in water to separate them into base tape pieces and magnetic powder. (B) feeding the pellets by supplying the dried tape-shaped strips of base tape into a melted extrusion mill; A method for recovering raw materials from magnetic tape debris, comprising the step of converting the powder into pieces. 제1항에 있어서 팽윤된 자기 테이프세편을 기제 테이프세편과 자성체 분말로 분리하는 공정이 가열장치를 구비한 혼합조와 이 혼합조속에 배치된 고속회전하는 회전 날개로 구성된 박리용 교반기에 팽윤된 자기테이프세편과 물 또는 알칼리수용액(특히 박리가 곤란한 것을 처리할 경우)을 수용하여 90 내지 95℃정도로 가열하면서 회전날개를 고속으로 회전시키는 것으로 이루어진 것을 특징으로 하는 자기테이프 부스러기로부터의 원료회수방법.The process of separating the swollen magnetic tape pieces into the base tape pieces and the magnetic powder is the magnetic tape swollen in a peeling stirrer consisting of a mixing tank having a heating device and a rotating rotor rotating at high speed in the mixing tank. A method for recovering raw materials from magnetic tape shavings, comprising rotating pieces of fine pieces and water or an alkaline aqueous solution (especially in the case of treating a difficult peeling) and rotating the rotor blades at high speed while heating to about 90 to 95 ° C. 제1항에 있어서, 분리된 기재테이프세편을 수세, 탈수하는 공정이 분리공정에서 분리된 기재테이프세편과 자성체분말을 약 1내지 1.5배량의 수중에서 고속 교반하여 완전분리하고 또한 세정한후 탈수하는 것으로 이루어진 자기테이프 부스러기로부터의 원료회수 방법.The method of claim 1, wherein the washing and dewatering of the separated base tape pieces is performed by separating the base tape pieces and the magnetic powder separated in the separation step by high-speed stirring in a water of about 1 to 1.5 times, completely separating and washing and dehydrating. A method for recovering raw materials from magnetic tape shavings. 제1항에 있더서, 기재테이프세편을 커얼시켜서 종이노끈모양으로 성형하는 동시에 기재테이프세편중의 수분을 0.01% 미만에까지 건조시키는 공정이 기재테이프세편을 90 내지 110℃로 감압하에서 기재테이프세편중의 수분이 0.01% 미만에서 0.006% 이상으로 될 때까지 고속교반하는 것을 특징으로 하는 자기테이프 부스러기로부터의 원료회수 방법.The process according to claim 1, wherein the step of curling the base tape pieces to form a paper-nape strip and drying the moisture in the base tape pieces to less than 0.01% is carried out in the base tape pieces at 90 to 110 ° C under reduced pressure. A method for recovering raw materials from magnetic tape shavings, characterized in that the product is stirred at high speed until the water content becomes less than 0.01% to 0.006% or more. 제1항에 있어서, 기재테이프세편이 폴리에스테르로이루어진 것을 특징으로 하는 자기테이프 부스레기로부터의 원료회수 방법.A method for recovering raw materials from magnetic tape scraps according to claim 1, wherein the base tape pieces are made of polyester. (가) 플라스틱테이프의 표면에 코우팅층, 종이, 금속등의 충이 접착된 복합테이프를 재단하기 위한 테이프부스러기재단기와, (나) 재단한 복합테이프세편을 침지하는 알칼리 처리조와, (다) 알칼리처리가 시행된 복합테이프세편을 교반하여 플라스틱 테이프세편과 이 플라스틱 테이프세편에 접착된 층을 구성하는 물질로 분리하고 이것을 수세하는 고속회전 날개를 구비한 교반기와, (라) 수세된 플라스틱테이프세편과 이 플라스틱세편에 접착된 층을 구성하는 물질과를 분리하는 장치와, (마) 자성체분말이 제거된 플라스틱테이프세편을 감압가열하에 교반하여 종이 노끈모양으로 성형하는 고속회전날개, 가열장치 및 감압장치를 구비한 진공교반 건조기와, (바) 교반건조된 플라스틱 테이프세편을 가열용융하여 펠릿화하는 조립기를 가진 것을 특징으로 하는 복합테이프 부스러기로부터의 플라스틱 원료회수 장치.(A) Tape crumb cutting machine for cutting composite tapes coated with coating layer, paper, metal, etc. on the surface of plastic tape, (B) Alkali treatment tank for immersing cut composite tape pieces, and (C) Alkali treatment (A) a stirrer having a high speed rotary vane for agitating and separating the separated composite tape pieces into plastic tape pieces and the material constituting the layer adhered to the plastic tape pieces, and (d) washed plastic tape pieces and A device for separating the material constituting the layer adhered to the plastic pieces, and (e) a high-speed rotary blade, a heating device and a pressure reducing device for forming plastic tape pieces in which the magnetic powder has been removed under a reduced pressure to form paper strings. And (c) a granulator for heating and melting and pelletizing the dried and dried plastic tape pieces. Composite tape debris plastic material recovery device from that. 제6항에 있어서, 알칼리처리조와 교반기와의 사이에는 알칼리 처리조속에서 팽윤한 복합테이프부스러기를 일시적으로 수용하는 반제품치장(置場)이 설치되어 있는 것을 특징으로 하는 복합테이프 부스러기로부터의 원료회수 장치.7. The raw material recovery apparatus according to claim 6, wherein a semi-finished garment is temporarily provided between the alkali treatment tank and the stirrer to temporarily receive the composite tape swells swelled in the alkali treatment tank. 제6항에 있어서, 알칼리처리조와 반제품치장과의 사이에는 알칼리처리조에 침지한 바구니를 매달아 올려서 반제품치장에 바구니속의 복합테이프세편을 옮기는 이송기, 또는 저부를 망상으로하여 물을 빼면서 침지물을 긁어내어 반제품치장에 옮기는 소출기(搔出機)가 배설되어 있는 것을 특징으로 하는 복합테이프 부스러스로부터의 원료회수 장치.The method of claim 6, between the alkali treatment tank and the semi-finished product hanger, the basket immersed in the alkali treatment tank is hung up to transfer the composite tape pieces in the basket to the semi-finished product, or the bottom is reticularly scraped off while draining water. A raw material recovery device from a composite tape busbar, characterized by discharging an ejector for transporting to semi-finished clothing. 제6항에 있어서, 반제품치장과 박리용교반기와의 사이에는 컴베이어라인이 배설되어서 반제품치장에 놓여진 복합테이프세편을 박리용 교반기에 반송하는 것을 특징으로 하는 복합테이프 부스러기로부터의 원료회수 장치.7. The raw material recovery apparatus according to claim 6, wherein a conveyer line is disposed between the semifinished product decoration and the peeling stirrer and the composite tape pieces placed on the semifinished product decoration are conveyed to the peeling stirrer. 제5항에 있어서, 복합테이프부스러기가 자기테이프부스러기인 것을 특징으로 하는 복합테이프 부스러기로부터의 원료회수 방법.6. The method for recovering a raw material from a composite tape shaving according to claim 5, wherein the composite tape shaving is a magnetic tape shaving. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019830005468A 1982-11-17 1983-11-17 Method for recovering raw material from magnetic tape chips and its device KR840006778A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP57201704A JPS5991028A (en) 1982-11-17 1982-11-17 Method and apparatus for recovering raw material from magnetic tape scrap
JP201704 1982-11-17

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KR840006778A true KR840006778A (en) 1984-12-03

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KR1019830005468A KR840006778A (en) 1982-11-17 1983-11-17 Method for recovering raw material from magnetic tape chips and its device

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JP (1) JPS5991028A (en)
KR (1) KR840006778A (en)
DE (1) DE3341608A1 (en)
FR (1) FR2536006A1 (en)
GB (1) GB2130124A (en)
IT (1) IT1170248B (en)
NL (1) NL8303935A (en)

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Publication number Priority date Publication date Assignee Title
JP2883229B2 (en) * 1990-09-14 1999-04-19 富士写真フイルム株式会社 Magnetic recording media
DE4034459A1 (en) * 1990-10-30 1992-05-07 Hoechst Ag METHOD FOR TREATING THERMALLY STRESSED POLYESTER WASTE
DE4203458A1 (en) * 1992-02-07 1993-08-12 Basf Magnetics Gmbh METHOD FOR RECYCLING USED MAGNETIC TAPE CASSETTES
FR2693668B1 (en) * 1992-07-03 1994-10-14 Helverep Sa Process for recovering waste from a synthetic material contaminated with other materials.
US5286424A (en) * 1992-11-09 1994-02-15 Mobil Oil Corporation Recycling polyolefins coated with chlorine-containing polymer
EP0639406A1 (en) * 1993-08-07 1995-02-22 BASF Magnetics GmbH Method and devices for treating magnetic tape cassettes
DE4407900A1 (en) * 1994-03-09 1995-09-14 Basf Magnetics Gmbh Process for the recovery of raw materials from magnetic recording media
DE19531886A1 (en) * 1995-08-30 1997-03-06 Basf Magnetics Gmbh Continuous process for the recovery of raw materials from coated films
EP0805011A1 (en) * 1996-05-03 1997-11-05 Mitsubishi Corporation Method and apparartus for collecting magnetic particles and base film separately from magnetic film waste
WO2021199897A1 (en) * 2020-03-31 2021-10-07 三菱ケミカル株式会社 Polyester recycling system and recycling method

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
JPS5376972A (en) * 1976-12-20 1978-07-07 Tdk Corp Treating method for waste solution from magnetic tape manufacture
JPS57146624A (en) * 1981-03-06 1982-09-10 Matsushita Electric Ind Co Ltd Treatment of magnetic recording medium
JPS58166016A (en) * 1982-03-26 1983-10-01 Panatsuku Kogyo Kk Separation of megnetic layer of magnetic recording medium

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Publication number Publication date
DE3341608A1 (en) 1984-05-17
GB2130124A (en) 1984-05-31
GB8330464D0 (en) 1983-12-21
IT1170248B (en) 1987-06-03
IT8323757A1 (en) 1985-05-17
FR2536006A1 (en) 1984-05-18
NL8303935A (en) 1984-06-18
IT8323757A0 (en) 1983-11-17
JPS5991028A (en) 1984-05-25

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