KR970074835A - Polyester film and manufacturing method thereof - Google Patents

Polyester film and manufacturing method thereof Download PDF

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Publication number
KR970074835A
KR970074835A KR1019960017724A KR19960017724A KR970074835A KR 970074835 A KR970074835 A KR 970074835A KR 1019960017724 A KR1019960017724 A KR 1019960017724A KR 19960017724 A KR19960017724 A KR 19960017724A KR 970074835 A KR970074835 A KR 970074835A
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KR
South Korea
Prior art keywords
polyester film
sheet
stretched
film according
polyester
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Application number
KR1019960017724A
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Korean (ko)
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KR100248540B1 (en
Inventor
정태형
홍영기
Original Assignee
장용균
주식회사 에스 · 케이 · 씨
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Priority to KR1019960017724A priority Critical patent/KR100248540B1/en
Publication of KR970074835A publication Critical patent/KR970074835A/en
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Publication of KR100248540B1 publication Critical patent/KR100248540B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • 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
    • C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • 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
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes

Abstract

본 발명은 폴리에스테르 필름 및 그 제조 방법에 관한 것이다. 설폰산 금속염을 갖는 수용성 폴리에스테르 수지와 친수성기를 갖는 열경화성 우레탄 수지가 99 : 1 내지 80 : 20의 중량비로 함유되어 있는 도포층이 형성된 일면과 엠보싱 처리된 다른 면을 갖는 폴리에스테르 필름은 주행성이 우수할 뿐만아니라, 자기기록 매체용 기재 필름으로 사용되는 경우 자성체와의 접착력이 강하고 우수한 전자특성을 가질 수 있다.The present invention relates to a polyester film and a method for producing the same. A polyester film having a coated surface on which a coating layer containing a water-soluble polyester resin having a sulfonic acid metal salt and a thermosetting urethane resin having a hydrophilic group in a weight ratio of 99: 1 to 80:20 is formed, and a polyester film having another surface subjected to embossing treatment, When it is used as a base film for a magnetic recording medium, it has strong adhesive force with a magnetic body and can have excellent electronic characteristics.

Description

폴리에스테르 필름 및 그 제조 방법Polyester film and manufacturing method thereof

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1A도 및 제1B도는 본 발명에 따라 면이 엠보싱 처리되어 요철구조를 갖는 쉬트 및 필름의 모식 단면도이다.FIGS. 1A and 1B are schematic cross-sectional views of a sheet and a film having a concavo-convex structure with a surface embossed according to the present invention.

Claims (8)

설폰상 금속염을 갖는 수용성 폴리에스테르 수지와 친수성기를 갖는 열경화성 우레탄 수지가 99 : 1 내지 80 : 20의 중량비로 함유되어 있는 도포층이 형성된 일면과 엠보싱 처리된 다른 면을 갖는 것을 특징으로 하는 폴리에스테르 필름.A polyester film comprising a water-soluble polyester resin having a sulfonated metal salt and a thermosetting urethane resin having a hydrophilic group in a weight ratio of 99: 1 to 80:20 and having a coated surface and another surface subjected to embossing treatment . 제1항에 있어서, 상기 수용성 폴리에스테르 수지는 상기 설폰산 금속염을 갖는 반복단위가 15몰% 이하이고, 유리전이 온도가 75℃ 이하인 것을 특징으로 하는 폴리에스테르 필름.The polyester film according to claim 1, wherein the water-soluble polyester resin has a repeating unit having the sulfonic acid metal salt of 15 mol% or less and a glass transition temperature of 75 캜 or less. 제1항에 있어서, 상기 도포층의 두께는 0.001 내지 1.0㎛인 것을 특징으로 하는 폴리에스테르 필름.The polyester film according to claim 1, wherein the thickness of the coating layer is 0.001 to 1.0 탆. 제1항에 있어서, 상기 엠보싱 처리된 면은 단위면적이 800 내지 52,000,000㎛2이고, 요철구조의 중심선 표면조도가 2,000㎚ 이하인 것을 특징으로 하는 폴리에스테르 필름.The polyester film according to claim 1, wherein the embossed surface has a unit area of 800 to 52,000,000 탆 2, and a center line surface roughness of the concavo-convex structure is 2,000 nm or less. 용융된 폴리에스테르가 다이를 통하여 입출된 다음, 캐스팅 드럼을 거치면서 냉각, 고화되어 쉬트로 성형되는 단계 ; 상기 단계에서 성형된 쉬트가 예열를 거쳐 종방향으로 연신된 다음, 냉각롤을 거치는 단계 ; 및 상기 단계에서 연신된 쉬트가 횡방향으로 연신되는 단계를 포함하는 폴리에스테르 필름의 제조 방법에 있어서, 상기 캐스팅 드럼, 예열롤 및 냉각롤로 이루어진 군에서 선택된 적어도 하나의 표면에 형성된 요철을 이용하여 쉬트의 일면이 엠보싱처리되고, 상기 엠보싱 처리되는 면의 반대 쪽면에 수지 조성물이 도포되는 단계가 더 포함되는 것을 특징으로 하는 폴리에스테르 필름의 제조 방법.The molten polyester is passed through a die and then cooled and solidified through a casting drum to be formed into a sheet; The sheet formed in the step is stretched in the longitudinal direction through preheating, and then passed through a cooling roll; And a step in which the stretched sheet is stretched in the transverse direction in the step, the method comprising the steps of: forming a sheet by using concavities and convexities formed on at least one surface selected from the group consisting of the casting drum, And the resin composition is applied to the opposite surface of the surface to be embossed. 제5항에 있어서, 상기 요철의 형태는 단위 면적 200 내지 280,000㎛2, 종방향에 대한 횡방향의 비 0.25 내지 5, 깊이 0.05 내지 20㎛인 것을 특징으로 하는 폴리에스테르 필름의 제조 방법.6. The method for producing a polyester film according to claim 5, wherein the shape of the unevenness is in a unit area of 200 to 280,000 mu m < 2 >, a ratio in the transverse direction to the longitudinal direction is 0.25 to 5, and a depth is 0.05 to 20 mu m. 용융된 폴리에스테르가 다이를 통하여 압출된 다음, 캐스팅 드럼을 거치면서 냉각, 고화되어 쉬트로 성형되는 단계; 상기 단계에서 성형된 쉬트가 예열를 거쳐 종방향으로 연신된 다음, 냉각롤을 거치는 단계 ; 및 상기 단계에서 연신된 쉬트가 횡방향으로 연신되는 단계를 포함하는 폴리에스테르 필름의 제조 방법에 있어서, 상기 캐스팅 드럼, 예열롤 및 냉각롤로 이루어진 군에서 선택된 적어도 하나의 인접하는 닙롤의 표면에 형성된 요철을 이용하여 쉬트의 일면이 엠보싱처리되고, 상기 엠보싱 처리되는 면의 반대 쪽면에 수지 조성물이 도포되는 단계가 더 포함하는 것을 특징으로 하는 폴리에스테르 필름의 제조 방법.The molten polyester is extruded through a die, cooled and solidified through a casting drum to form a sheet; The sheet formed in the step is stretched in the longitudinal direction through preheating, and then passed through a cooling roll; And a step of stretching the stretched sheet in the transverse direction in the step, the method comprising the steps of: forming a concavo-convex pattern on at least one adjacent nip roll selected from the group consisting of the casting drum, Wherein one side of the sheet is embossed and the resin composition is coated on the opposite side of the side subjected to the embossing treatment. 제7항에 있어서, 상기 요철의 형태는 단위 면적 200 내지 280,000㎛2, 종방향에 대한 횡방향의 비 0.25 내지 5, 깊이 0.05 내지 20㎛인 것을 특징으로 하는 폴리에스테르 필름의 제조 방법.8. The method for producing a polyester film according to claim 7, wherein the shape of the unevenness is a unit area of 200 to 280,000 mu m < 2 >, a ratio in the transverse direction to the longitudinal direction of 0.25 to 5, and a depth of 0.05 to 20 mu m. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960017724A 1996-05-23 1996-05-23 Polyester film and its manufacturing method KR100248540B1 (en)

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KR970074835A true KR970074835A (en) 1997-12-10
KR100248540B1 KR100248540B1 (en) 2000-04-01

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101268331B1 (en) 2011-08-17 2013-05-28 도레이첨단소재 주식회사 Manufacturing method of white polyester film and reflective sheet using the same

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