KR950024867A - Manufacturing method of biaxially stretched polyester base film for spankle - Google Patents

Manufacturing method of biaxially stretched polyester base film for spankle Download PDF

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Publication number
KR950024867A
KR950024867A KR1019940003066A KR19940003066A KR950024867A KR 950024867 A KR950024867 A KR 950024867A KR 1019940003066 A KR1019940003066 A KR 1019940003066A KR 19940003066 A KR19940003066 A KR 19940003066A KR 950024867 A KR950024867 A KR 950024867A
Authority
KR
South Korea
Prior art keywords
stretching
biaxially stretched
spankle
film
base film
Prior art date
Application number
KR1019940003066A
Other languages
Korean (ko)
Inventor
김창윤
최병찬
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 KR1019940003066A priority Critical patent/KR950024867A/en
Publication of KR950024867A publication Critical patent/KR950024867A/en

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  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

본 발명은, 스팡클용 이축연신 폴리에스테르 베이스 필름의 제조방법에 관한 것이다.The present invention relates to a method for producing a biaxially stretched polyester base film for spankle.

본 발명은 폴리에스테르 폴리머를 필름 다이를 통해 캐스팅 드럼상으로 토출시킨 후, 종방향 및 횡방향으로 연신하는 것으로 행하여지는 이축연신 폴리에스테르 필름의 제조방법에 있어서, 종방향으로 2.5∼3.5배의 연신배율로 연신한 후, 이어서 횡방향으로 연신한 후 횡방향 연신이완율을 3∼5%되도록 유지하도록 함을 특징으로 하는 스팡클용 이축연신 폴리에스케르 베이스 필름의 제조방법이다.The present invention relates to a method for producing a biaxially stretched polyester film, which is performed by discharging a polyester polymer through a film die onto a casting drum and then stretching in the longitudinal direction and the transverse direction. After stretching at a magnification, the film is subsequently stretched in the transverse direction and then maintained at a transverse stretching relaxation rate of 3 to 5%.

Description

스팡클용 이축연신 폴리에스테르 베이스 필름의 제조방법Manufacturing method of biaxially stretched polyester base film for spankle

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

Claims (1)

폴리에스테르 폴리머를 필름 다이를 통해 캐스팅 드럼상으로 토출시킨후, 종방향 및 횡방향으로 연신하는 것으로 행하여지는 이축연신 폴리에스테르 필름의 제조방법에 있어서, 종방향으로 2.5∼3.5배의 연신배율로 연신한 후, 이어서 횡방향으로 연신한 후 횡방향 연신이완율을 3∼5%되도록 유지하도록 함을 특징으로 하는 스팡클용 이축연신 폴리에스케르 베이스 필름의 제조방법.In the method for producing a biaxially stretched polyester film, which is carried out by discharging a polyester polymer through a film die onto a casting drum and stretching in the longitudinal direction and the transverse direction, stretching is performed at a stretching ratio of 2.5 to 3.5 times in the longitudinal direction. After that, after stretching in the transverse direction to maintain a transverse stretching relaxation rate of 3 to 5%, a method for producing a biaxially stretched polyesque base film for spankle. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940003066A 1994-02-21 1994-02-21 Manufacturing method of biaxially stretched polyester base film for spankle KR950024867A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940003066A KR950024867A (en) 1994-02-21 1994-02-21 Manufacturing method of biaxially stretched polyester base film for spankle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940003066A KR950024867A (en) 1994-02-21 1994-02-21 Manufacturing method of biaxially stretched polyester base film for spankle

Publications (1)

Publication Number Publication Date
KR950024867A true KR950024867A (en) 1995-09-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940003066A KR950024867A (en) 1994-02-21 1994-02-21 Manufacturing method of biaxially stretched polyester base film for spankle

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KR (1) KR950024867A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017131373A1 (en) * 2016-01-29 2017-08-03 (주)효성 Method for manufacturing polyester film by using simultaneous biaxial stretching method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017131373A1 (en) * 2016-01-29 2017-08-03 (주)효성 Method for manufacturing polyester film by using simultaneous biaxial stretching method

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