KR940014979A

KR940014979A - Manufacturing method of spun-like composite polyester yarn

Info

Publication number: KR940014979A
Application number: KR1019920027025A
Authority: KR
Inventors: 이종상; 박창경
Original assignee: 이승동; 주식회사 선경인더스트리
Priority date: 1992-12-31
Filing date: 1992-12-31
Publication date: 1994-07-19
Also published as: KR940011304B1

Abstract

본 발명은 스펀라이크 복합폴리에스테르사의 제조방법에 관한 것으로, 폴리에스테르 필라멘트로 이루어진 물성이 다른 2종의 미연신사를 교락처리하여 복합하는 복합사의 제조에 있어서, 그 중 하나의 미연신사군은 방사속도 1,700~2,500 m/min로 방사하고 그 배향도를 15 ×10^-3~30 ×10^-3으로 하는 상대적으로 높은 배향의 폴리에스테르 미연신사를 만들고, 다른 한 미연신사군은 방사속도 900~1,600 m/min로 방사하고 그 배향도를 4 ×10^-3~18 ×10^-3으로 하는 상대적으로 낮은 배향의 미연신사군을 만든후 연신배율 1.5~2.7, 연신온도 Tg ±20℃에서 동시 연신하면서 교락복합하여 제조하는 것을 특징으로 하는 스펀라이크 복합 폴리에스테르사의 제조방법.The present invention relates to a method for producing a spun-like composite polyester yarn, in the production of a composite yarn entangled two unstretched yarn of different physical properties consisting of polyester filament, one of the unstretched yarn group has a spinning speed of 1,700 A relatively high orientation polyester non-drawn yarn is spun at ~ 2,500 m / min and its orientation is 15 x 10 ^-3 to 30 x 10 ^-3 , while the other non-drawn yarn group has a spinning speed of 900 to 1600 m / min. It was produced by forming a non-drawn yarn with a relatively low orientation of spinning and having an orientation of 4 × 10 ^-3 to 18 × 10 ^-3 , and entangled with simultaneous stretching at a draw ratio of 1.5 to 2.7 and a stretching temperature of Tg ± 20 ° C. Spunlike composite polyester yarn production method characterized in that.

이때 두 미연신사군간의 방사속도차이는 500m/min 이상이고, 배향도 차이는 10 ×10^-3이상이며, 상대적으로 낮은 배향의 미연신사군은 에틸렌테레프탈레이트가 90몰% 이상인 폴리에틸렌테레프탈레이트를 사용한다.At this time, the difference in the radial velocity between the two non-drawn yarn group is more than 500m / min, the degree of orientation difference is 10 × 10 ^-3 or more, the non-drawn yarn group of relatively low orientation uses a polyethylene terephthalate of 90 mol% or more of ethylene terephthalate.

Description

Manufacturing method of spun-like composite polyester yarn

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

도면은 본 발명의 공정 모식도.The figure is a process schematic diagram of this invention.

Claims

In the production of a composite yarn in which two undrawn yarns having different physical properties made of polyester filaments are entangled and composited, one of the undrawn yarns is spun at a spinning speed of 1,700 to 2,500 m / min and its orientation is 15 × 10 ¹³ A relatively high orientation polyester non-drawn yarn is made to ˜30 × 10 ⁻³ , and the other non-drawn yarn is spun at a spinning speed of 900-1,600 m / min and the degree of orientation is 4 × 10 ¹³ -18 × 10 ^-3 . Method for producing a spun-like composite polyester yarn, characterized in that after the non-drawn yarn group of a relatively low orientation to make a stretching ratio of 1.5 ~ 2.7, at the stretching temperature of Tg ± 20 ℃ while simultaneously entangled composite.

The method of manufacturing a spun-like composite polyester yarn according to claim 1, wherein the difference in spinning speed between the two undrawn yarn groups is 500 m / min or more, and the degree of orientation difference is 10 × 10 ⁻³ or more.

The method for producing spun-like composite polyester yarn according to claim 1, wherein the non-drawn yarn group having a relatively low orientation is polyethylene terephthalate having an ethylene terephthalate of 90 mol% or more.

※ Note: The disclosure is based on the initial application.