KR930012257A - Manufacturing method of polyester film - Google Patents

Manufacturing method of polyester film Download PDF

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Publication number
KR930012257A
KR930012257A KR1019910024427A KR910024427A KR930012257A KR 930012257 A KR930012257 A KR 930012257A KR 1019910024427 A KR1019910024427 A KR 1019910024427A KR 910024427 A KR910024427 A KR 910024427A KR 930012257 A KR930012257 A KR 930012257A
Authority
KR
South Korea
Prior art keywords
polyester film
sides
film sheet
manufacturing
stretching process
Prior art date
Application number
KR1019910024427A
Other languages
Korean (ko)
Other versions
KR940009906B1 (en
Inventor
최복돌
김진사
박종찬
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 KR1019910024427A priority Critical patent/KR940009906B1/en
Publication of KR930012257A publication Critical patent/KR930012257A/en
Application granted granted Critical
Publication of KR940009906B1 publication Critical patent/KR940009906B1/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
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

내용 없음No content

Description

폴리에스테르 필름의 제조방법Manufacturing method of polyester film

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

Claims (3)

2축 배향 연신 폴리에스테르의 제조에 있어서, 횡연신 공정에서, 노즐로부터 공급되는 열매체의 양을 폴리에스테르 필름 시이트의 중앙부에 비하여 양변부에 5∼10% 증가시키는 것을 특징으로 하는 폴리에스테르 필름의 제조방법.In the production of the biaxially oriented polyester, in the lateral stretching process, the amount of the heat medium supplied from the nozzle is increased by 5 to 10% at both sides relative to the center of the polyester film sheet. Way. 제 1 항에 있어서, 상기 양변부는 폴리에스테르 필름 시이트의 양측면으로서 필름 전체의 폭에 대하여 횡방향 종단에서 중앙부로 각각 20%인 것을 특징으로 하는 폴리에스테르 필름의 제조방법.The method of claim 1, wherein both sides of the polyester film sheet are both sides of the polyester film sheet. 제 1 항의 횡방향 연신공정에 있어서, 폴리에스테르 필름 시이트의 양변부의 온도가 중앙부 온도보다 0.5∼2℃ 높게 하는 것을 특징으로 하는 폴리에스테르 필름의 제조방법.The transverse stretching process of Claim 1 WHEREIN: The temperature of the both sides of a polyester film sheet is made 0.5-2 degreeC higher than the center part temperature, The manufacturing method of the polyester film characterized by the above-mentioned. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910024427A 1991-12-26 1991-12-26 Manufacturing method of polyester film KR940009906B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910024427A KR940009906B1 (en) 1991-12-26 1991-12-26 Manufacturing method of polyester film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910024427A KR940009906B1 (en) 1991-12-26 1991-12-26 Manufacturing method of polyester film

Publications (2)

Publication Number Publication Date
KR930012257A true KR930012257A (en) 1993-07-20
KR940009906B1 KR940009906B1 (en) 1994-10-18

Family

ID=19326057

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910024427A KR940009906B1 (en) 1991-12-26 1991-12-26 Manufacturing method of polyester film

Country Status (1)

Country Link
KR (1) KR940009906B1 (en)

Also Published As

Publication number Publication date
KR940009906B1 (en) 1994-10-18

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A201 Request for examination
G160 Decision to publish patent application
O035 Opposition [patent]: request for opposition

Free format text: OPPOSITION NUMBER: 001994001687; OPPOSITION DATE: 19941217

SUBM Submission of document of abandonment before or after decision of registration