KR960025487A - Method of manufacturing magnetic recording medium - Google Patents

Method of manufacturing magnetic recording medium Download PDF

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Publication number
KR960025487A
KR960025487A KR1019940033369A KR19940033369A KR960025487A KR 960025487 A KR960025487 A KR 960025487A KR 1019940033369 A KR1019940033369 A KR 1019940033369A KR 19940033369 A KR19940033369 A KR 19940033369A KR 960025487 A KR960025487 A KR 960025487A
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KR
South Korea
Prior art keywords
organic solvent
binder
recording medium
kneading
magnetic recording
Prior art date
Application number
KR1019940033369A
Other languages
Korean (ko)
Other versions
KR0139760B1 (en
Inventor
문치욱
박혁상
김창곤
Original Assignee
안시환
주식회사 에스케이씨
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 안시환, 주식회사 에스케이씨 filed Critical 안시환
Priority to KR1019940033369A priority Critical patent/KR0139760B1/en
Publication of KR960025487A publication Critical patent/KR960025487A/en
Application granted granted Critical
Publication of KR0139760B1 publication Critical patent/KR0139760B1/en

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Classifications

    • 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
    • G11B5/848—Coating a support with a magnetic layer by extrusion
    • 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
    • G11B5/7021—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing a polyurethane or a polyisocyanate

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

본 발명은 자기기록 매체의 제조 방법에 관한 것이다. 유기용제에 결합제의 고형분을 투입하는 단계, 배치식 혼련 혼합기에서 상기 결합제를 함유한 유기용제를 자성체의 고형분에 2 내지 10회에 걸쳐 분할 투입하면서 혼련하는 단계, 상기 단계에서 얻어진 훈련물에 결합제를 함유한 유기용제를 30 내지 90단계로 분할해서 가하여 희석하는 단계, 및 상기 희석되어진 혼련물을 분산기로 분산시켜 얻어진 분산액을 기재상에 도포, 건조하는 단계를 포함하는 방법에 의해 제조된 자기기록 매체는 지지체 위에 도포되어진 자성도막 내의 충진성이 향상되어 자기특성, 전자변환특성 등이 뛰어나다.The present invention relates to a method of manufacturing a magnetic recording medium. Adding a solid component of the binder to the organic solvent, kneading the organic solvent containing the binder in a batch kneader mixer while dividing the solid into the solid component of the magnetic body 2 to 10 times, and then adding the binder to the training material obtained in the step. Diluting and diluting the contained organic solvent in steps of 30 to 90; and applying and drying the dispersion obtained by dispersing the diluted mixture with a disperser, onto a substrate. The filling property in the magnetic coating film coated on the support is improved, and excellent magnetic properties, electron conversion characteristics, and the like.

Description

자기기록 매체의 제조 방법Method of manufacturing magnetic recording medium

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (7)

유기용제에 결합제의 고형분을 투입하는 단계; 배치식 혼련 혼합기에서 상기 결합제를 함유한 유기용제를 자성체의 고형분에 2 내지 10회에 걸쳐 분할 투입하면서 혼련하는 단계; 상기 단계에서 얻어진 혼련물에 결합제를 함유한 유기용제를 30 내지 90단계로 분할해서 가하여 희석하는 단계; 및 상기 희석되어진 혼련물을 분산 기로 분산시켜 얻어진 분산액을 기재상에 도포, 건조하는 단계를 포함하는 것을 특징으로 하는 자기기록 매체의 제조 방법.Injecting the solids of the binder into the organic solvent; Kneading with a batch kneading mixer while dividing the organic solvent containing the binder into the solids of the magnetic body two to ten times; Dividing and adding an organic solvent containing a binder in 30 to 90 steps to the kneaded product obtained in the above step; And applying and drying the dispersion liquid obtained by dispersing the diluted kneaded product with a dispersing group on a substrate. 제1항에 있어서, 상기 혼련하는 단계는 상기 유기용제의 분할 투입시마다 자성체와 결합제 혼합물의 농도차를 0.2 내지 5%로 하는 것을 특징으로 하는 자기기록 매체의 제조 방법.The method of manufacturing a magnetic recording medium according to claim 1, wherein in the kneading step, the concentration difference between the magnetic material and the binder mixture is 0.2 to 5% every time the organic solvent is dividedly added. 제1항에 있어서, 상기 희석하는 단계는 상기 유기용제 용액의 분할 투입시마다 자성체와 결합제 혼합물의 농도차가 0.1 내지 5%로 하는 것을 특징으로 하는 자기기록 매체의 제조 방법.The method of manufacturing a magnetic recording medium according to claim 1, wherein the diluting is performed such that the concentration difference between the magnetic material and the binder mixture is 0.1 to 5% at each divided input of the organic solvent solution. 제1항에 있어서, 상기 혼련 및 희석하는 단계는 자성체와 결합제 혼합물의 농도차가 서서히 커지도록 하는 것을 특징으로 하는 자기기록 매체의 제조 방법.The method of manufacturing a magnetic recording medium according to claim 1, wherein the step of kneading and diluting causes the concentration difference between the magnetic material and the binder mixture to gradually increase. 제1항에 있어서, 상기 혼련하는 단계에서 혼련 혼합기 내의 온도는 20 내지 45℃가 되도록 하는 것을 특징으로 하는 자기기록 매체의 제조 방법.The method of manufacturing a magnetic recording medium according to claim 1, wherein the temperature in the kneading mixer in the kneading step is 20 to 45 ° C. 제1항에 있어서, 상기 혼련하는 단계는 자성체와 결합제 혼합물의 농도가 유기용제의 중량을 기준으로 75 내지 85중량%가 되도록 하는 것을 특징으로 하는 자기기록 매체의 제조 방법.The method of manufacturing a magnetic recording medium according to claim 1, wherein the step of kneading is such that the concentration of the magnetic material and the binder mixture is 75 to 85% by weight based on the weight of the organic solvent. 제1항에 있어서, 상기 희석하는 단계는 자성체와 결합제 혼합물의 농도가 유기용제의 중량을 기준으로 40 내지 50중량%가 되도록 하는 것을 특징으로 하는 자기기록 매체의 제조 방법.The method of claim 1, wherein the diluting is performed such that the concentration of the mixture of the magnetic material and the binder is 40 to 50% by weight based on the weight of the organic solvent. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940033369A 1994-12-08 1994-12-08 Manufacturing mehtod of magnetic medium KR0139760B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940033369A KR0139760B1 (en) 1994-12-08 1994-12-08 Manufacturing mehtod of magnetic medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940033369A KR0139760B1 (en) 1994-12-08 1994-12-08 Manufacturing mehtod of magnetic medium

Publications (2)

Publication Number Publication Date
KR960025487A true KR960025487A (en) 1996-07-20
KR0139760B1 KR0139760B1 (en) 1998-06-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940033369A KR0139760B1 (en) 1994-12-08 1994-12-08 Manufacturing mehtod of magnetic medium

Country Status (1)

Country Link
KR (1) KR0139760B1 (en)

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Publication number Publication date
KR0139760B1 (en) 1998-06-01

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