KR930008207A

KR930008207A - High shrinkable polyester filament yarn and its manufacturing method

Info

Publication number: KR930008207A
Application number: KR1019910017239A
Authority: KR
Inventors: 김광태; 손영호; 이창수
Original assignee: 서주인; 제일합섬 주식회사
Priority date: 1991-10-01
Filing date: 1991-10-01
Publication date: 1993-05-21

Abstract

본 발명은 테레프탈산과 에틸렌글리콜을 주성분으로하되 이소프탈산을 전체산성분의 5∼10몰%, 헥실렌글리콜을 전체글리콜 성분의 3∼10몰% 사용하여 공중합시켜 제조한 고유점도 0.55∼0.70정도의 폴리에스터 공중합체를 방사구금을 통하여 300∼3500m/분 속도로 방사하여 부분연신사를 제조한 다음, 75℃이상의 온도를 유지시킨 상태에서 최대연신비율의 80∼90%로 연신하고 120℃이상의 온도로 열처리하여 비수 수축율이 100℃에서 13~22%, 120℃에서 17~28%이고 100℃의 비수 수축처리부의 건열 수축율은 180℃에서 5~11%, 200℃에서 7~16%이며, 필라멘트를 20℃/분으로 승온시 최대 열수축응력 발현온도(Tmax), 최대열수축응력(τmax), 200℃에서의 열수축응력(τ200℃)값이 하기(I), (II), (III)의 조건을 만족하는 고수축성 폴리에스터 필라멘트사를 제조하였다.The present invention is composed of terephthalic acid and ethylene glycol as a main component, but isophthalic acid of 5 to 10 mol% of the total acid component, hexylene glycol copolymerized by using 3 to 10 mol% of the total glycol component of about 0.55 to 0.70 Partial stretched yarn was produced by spinning the polyester copolymer at a speed of 300 to 3500 m / min through spinnerets, and then stretched to 80 to 90% of the maximum stretching ratio at a temperature of 75 ° C. or higher and a temperature of 120 ° C. or higher. The non-aqueous shrinkage ratio is 13-22% at 100 ° C, 17-28% at 120 ° C, and the dry heat shrinkage of the non-aqueous shrinkage treatment part at 100 ° C is 5-11% at 180 ° C and 7-16% at 200 ° C. The maximum heat shrinkage stress temperature (Tmax), maximum heat shrinkage stress (τmax), and heat shrinkage stress (τ200 ° C) at 200 ° C are obtained under the conditions of the following (I), (II) and (III). A highly shrinkable polyester filament yarn was prepared.

Tmax≥120℃ (I)Tmax≥120 ℃ (I)

τmax≥0.55g/d (II)τmax≥0.55 g / d (II)

τ200℃≥0.3g/d (III)τ200 ℃ ≥0.3g / d (III)

Description

High shrinkable polyester filament yarn and its manufacturing method

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

Claims

The maximum heat shrinkage stress expression temperature (Tmax), the maximum heat shrinkage stress (τmax), and the heat shrinkage stress (τ200 ° C) at 200 ° C are shown below (I), (II), and (III). High shrinkage polyester filament yarn satisfying the requirements of

Tmax≥120 ℃ (I)

τmax≥0.55 g / d (II)

τ200 ℃ ≥0.3g / d (III)

The high shrink polyester filament yarn according to claim 1, wherein the specific shrinkage ratio is 13 to 22% at 100 ° C.

The high shrink polyester filament yarn according to claim 1, wherein the specific shrinkage ratio is 17 to 28% at 120 ° C.

The high shrinkage polyester filament yarn according to claim 1, wherein the dry heat shrinkage ratio after the non-shrinkage treatment at 100 ° C is 5 to 17% at 180 ° C.

The high shrinkage polyester filament yarn according to claim 1, wherein the dry heat shrinkage ratio after the non-shrinkage treatment at 100 ° C is 7 to 16% at 200 ° C.

The copolymerized polyester obtained by terephthalic acid and ethylene glycol as main components, 5-10 mol% of isophthalic acid and 3-10 mol% of hexylene glycol as the whole glycol component was passed through a spinneret for 3000 to 3500 m / min. After spinning at a speed to obtain a partially stretched yarn, the method of manufacturing a highly shrinkable polyester filament yarn characterized in that it is stretched and heat treated at 80 ~ 90% of the maximum draw ratio in a heater roller maintained at a temperature of 75 ℃ or more.

The method according to claim 6, wherein the intrinsic viscosity of the copolymerized polyester is 0.55 to 0.70.

The method of manufacturing a highly shrinkable polyester filament yarn according to claim 6, wherein the heat treatment is performed at a temperature of 120 ° C or higher.

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