KR910019752A - Manufacturing method of high strength polyester film - Google Patents

Manufacturing method of high strength polyester film Download PDF

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Publication number
KR910019752A
KR910019752A KR1019900007761A KR900007761A KR910019752A KR 910019752 A KR910019752 A KR 910019752A KR 1019900007761 A KR1019900007761 A KR 1019900007761A KR 900007761 A KR900007761 A KR 900007761A KR 910019752 A KR910019752 A KR 910019752A
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KR
South Korea
Prior art keywords
polyester film
strength polyester
stretching
film
longitudinal
Prior art date
Application number
KR1019900007761A
Other languages
Korean (ko)
Other versions
KR920007037B1 (en
Inventor
최복돌
황제영
송기상
Original Assignee
하기주
주식회사 코오롱
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 하기주, 주식회사 코오롱 filed Critical 하기주
Priority to KR1019900007761A priority Critical patent/KR920007037B1/en
Publication of KR910019752A publication Critical patent/KR910019752A/en
Application granted granted Critical
Publication of KR920007037B1 publication Critical patent/KR920007037B1/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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/30—Drawing through a die

Abstract

내용 없음No content

Description

고강도 폴리에스테르 필름의 제조방법Manufacturing method of high strength polyester film

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

제1도는 본 발명에 따른 폴리에서테르 필름 제조장치의 개략도.1 is a schematic view of a polyether film production apparatus according to the present invention.

Claims (2)

고강도 폴리에스테르 필름의 제조방법에 있어서, 폴리에스테르 용융물(8)을 필름 다이(6)를 통해 압출시킨후 폴리에스테르 결정화온도(Tc)이상의 온도가 유지되는 캐스팅 드럼(1)과 연신롤러(2) 사이에서 필름 길이방향으로 1단 연신한 후, 냉결정화온도(Tcc)이하가 유지되는 2개의 연신롤러(3,4)사이에서 2단 연신한 다음, 유리전이온도(Tg)이하의 2개의 롤러(4,5)를 거치면서 급냉시킨 후, 필름 폭방향 연신하여 열고정시킴을 특징으로 하는 고강도 폴리에스테르 필름의 제조방법.In the method for producing a high-strength polyester film, a casting drum (1) and a stretching roller (2) in which a polyester melt (8) is extruded through a film die (6) and then maintained at a temperature above the polyester crystallization temperature (Tc). After stretching in the film length direction between the two stages, stretching in two stages between the two stretching rollers 3 and 4 where the cold crystallization temperature (Tcc) or less is maintained, and then the two rollers below the glass transition temperature (Tg). After quenching while passing through (4,5), the method of producing a high-strength polyester film characterized in that the film is stretched in the width direction and heat set. 제1항에 있어서, 길이방향의 1단 연신비를 3.0 내지 10.0으로 하고, 2단 연신비를 1.5-3.0으로 하여 길이방향 총연신비가 4.5 내지 30이 되게 한 것을 특징으로 하는 고강도 폴리에스테르 필름의 제조방법.The method for producing a high strength polyester film according to claim 1, wherein the longitudinal draw ratio in the longitudinal direction is 3.0 to 10.0, and the longitudinal draw ratio in the longitudinal direction is 1.5 to 3.0, so that the longitudinal total draw ratio is 4.5 to 30. . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900007761A 1990-05-29 1990-05-29 Forming method for polyester film KR920007037B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900007761A KR920007037B1 (en) 1990-05-29 1990-05-29 Forming method for polyester film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900007761A KR920007037B1 (en) 1990-05-29 1990-05-29 Forming method for polyester film

Publications (2)

Publication Number Publication Date
KR910019752A true KR910019752A (en) 1991-12-19
KR920007037B1 KR920007037B1 (en) 1992-08-24

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ID=19299511

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900007761A KR920007037B1 (en) 1990-05-29 1990-05-29 Forming method for polyester film

Country Status (1)

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KR (1) KR920007037B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100460737B1 (en) * 1999-11-23 2004-12-09 에스케이씨 주식회사 The processing method of the Bi-oriented polymer film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100460737B1 (en) * 1999-11-23 2004-12-09 에스케이씨 주식회사 The processing method of the Bi-oriented polymer film

Also Published As

Publication number Publication date
KR920007037B1 (en) 1992-08-24

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