KR100386742B1 - A polypropylene hollow fiber, and a process of preparing for the same - Google Patents
A polypropylene hollow fiber, and a process of preparing for the same Download PDFInfo
- Publication number
- KR100386742B1 KR100386742B1 KR10-2001-0000008A KR20010000008A KR100386742B1 KR 100386742 B1 KR100386742 B1 KR 100386742B1 KR 20010000008 A KR20010000008 A KR 20010000008A KR 100386742 B1 KR100386742 B1 KR 100386742B1
- Authority
- KR
- South Korea
- Prior art keywords
- polypropylene
- hollow
- island
- fiber
- yarn
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
- D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/08—Addition of substances to the spinning solution or to the melt for forming hollow filaments
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Multicomponent Fibers (AREA)
Abstract
본 발명은 폴리프로필렌 중공사 및 그의 제조방법에 관한 것이다. 본 발명의 폴리프로필렌 중공사는 폴리프로필렌 원사의 단면상에 중공부(2)들이 랜덤하게 분포되어 있으며, 중공부(2)의 총단면적이 폴리프로필렌 원사(1)의 전체 단면적 대비 30% 이상인 것을 특징으로 하며, 의류제조시 경량성 및 보온성이 우수하다. 본 발명의 폴리프로필렌 중공사는 알칼리 이용해성 공중합폴리에스테르를 도성분으로 폴리프로필렌을 해성분으로 사용하여 도 2와 같은 해도형 복합섬유를 제조한 후, 상기 도성분을 알칼리 수용액으로 용출시켜 제조한다.TECHNICAL FIELD This invention relates to a polypropylene hollow fiber and its manufacturing method. The polypropylene hollow yarn of the present invention is characterized in that the hollow portions 2 are randomly distributed on the cross section of the polypropylene yarn, and the total cross-sectional area of the hollow portion 2 is 30% or more of the total cross-sectional area of the polypropylene yarn 1. It is excellent in light weight and warmth in garment manufacturing. The polypropylene hollow yarn of the present invention is prepared by preparing an island-in-the-sea composite fiber as shown in FIG.
Description
본 발명은 의류용 원사로 사용시 최종 제품의 경량성 및 보온성을 크게 향상시킬 수 있는 폴리프로필렌 중공사 및 그의 제조방법에 관한 것이다. 지금까지 의류제품의 경량성 및 보온성을 향상시킬 목적으로 다양한 합성섬유 중공사가 개발되었다. 합성섬유 중공사는 중공부에 공기를 다량 함유하여 의류 제조시 보온성과 경량성을 향상시키게 된다.The present invention relates to a polypropylene hollow fiber and a method for manufacturing the same that can greatly improve the lightness and thermal insulation of the final product when used as a garment yarn. Up to now, various synthetic fiber hollow yarns have been developed for the purpose of improving the light weight and warmth of clothing products. Synthetic fiber hollow yarn contains a large amount of air in the hollow portion to improve the heat insulation and light weight in the manufacture of clothing.
종래 합성섬유 중공사는 도 3과 같이 원사단면상 중앙부에 하나의 중공부(2)가 형성되어 있는 제품이 주로 사용되어 왔으나, 이 경우 방사상의 문제로 인해 중공율이 25%를 초과하지 못하였다. 구체적으로 중공율을 25% 이상으로 합성섬유 중공사를 제조하는 경우에는 방사시 사절이 심하여 방사조업성이 급격하게 저하되는 문제가 발생 되었다. 이와 같이 종래 합성섬유 중공사는 원사 전체 단면적 대비 중공부 단면적 비율(이하 "중공율"이라고 한다)이 25% 이하 수준으로 의류제품 제조시 보온성과 경량성을 개선하는 데에는 한계가 있었다.Conventional synthetic fiber hollow yarn has been mainly used as a product in which one hollow portion 2 is formed in the center on the yarn cross-section as shown in Figure 3, in this case the hollow ratio did not exceed 25% due to radial problems. Specifically, in the case of manufacturing a synthetic fiber hollow fiber with a hollow ratio of 25% or more, a problem arises in that spinning operation is sharply deteriorated due to severe trimming during spinning. As such, the conventional synthetic fiber hollow yarn has a limit in improving heat insulation and light weight when manufacturing a garment product with a hollow section cross-sectional ratio (hereinafter referred to as "hollow rate") of 25% or less of the total cross-sectional area of the yarn.
본 발명의 목적은 이와 같은 종래 문제점들을 해결하기 위하여 중공율이 30% 이상인 폴리프로필렌 중공사를 제공하기 위한 것이다. 또한 본 발명의 목적은 중공율이 30% 이상인 폴리프로필렌 중공사를 양호한 조업성으로 제조 할 수 있는 방법을 제공하기 위한 것이다.An object of the present invention is to provide a polypropylene hollow fiber having a hollow ratio of 30% or more in order to solve such conventional problems. It is also an object of the present invention to provide a method for producing a polypropylene hollow fiber having a hollow ratio of 30% or more with good operability.
본 발명은 해도형 복합섬유 제조기술을 활용하여 중공율이 30% 이상인 폴리프로필렌 중공사를 양호한 방사 조업성으로 제조하고자 한다. 통상의 해도형 복합섬유 제조방법과는 달리 본 발명은 해도형 복합방사 장치에 도 2와 같이 알칼리 이용해성(易容解性)인 공중합폴리에스테르를 도성분으로 공급하고, 섬유형성성 성분인 폴리프로필렌을 해성분으로 공급하여 해도형 복합섬유를 제조한다. 다음으로 상기 해도형 복합섬유를 알칼리 수용액에 디핑시켜 해도형 복합섬유 중 도성분인 공중합 폴리에스테르를 용출시켜 도 1과 같이 원사단면상 중공부(2)들이 랜덤하게 형성되어 있고, 중공율이 30% 이상인 폴리프로필렌 중공사를 제조한다.The present invention is to produce a polypropylene hollow fiber having a hollow ratio of 30% or more with good spinning operation utilizing the island-in-the-sea composite fiber manufacturing technology. Unlike the conventional method for producing island-in-the-sea composite fiber, the present invention supplies an alkali-soluble co-polyester as a island component to the island-in-sea composite spinning machine as shown in FIG. Propylene is supplied as a sea component to prepare an island-in-the-sea composite fiber. Next, the island-in-the-sea composite fiber was dipped in an aqueous alkali solution to elute the copolyester of the island-in-the-sea composite fiber, and hollow portions 2 were randomly formed on the yarn cross-section as shown in FIG. 1, and the hollow ratio was 30%. The above polypropylene hollow fiber is manufactured.
도 1은 본 발명의 폴리프로필렌 중공사 단면 확대도.1 is an enlarged cross-sectional view of the polypropylene hollow fiber of the present invention.
도 2는 도성분을 용출하기 전인 본 발명의 해도형 복합섬유 단면 확대도.Figure 2 is an enlarged cross-sectional view of the island-in-the-sea composite fiber of the present invention before eluting the island component.
도 3은 종래 합성섬유 중공사의 단면 확대도.Figure 3 is an enlarged cross-sectional view of a conventional synthetic fiber hollow yarn.
※도면중 주요부분에 대한 부호설명※ Code explanation for main part of drawing
1 : 폴리프로필렌(섬유형성성 성분) 2 : 중공부1 polypropylene (fiber forming component) 2 hollow part
3 : 공중합폴리에스테르(도성분)3: Copolyester (Doe Component)
이와 같은 과제들을 달성하기 위한 본 발명의 폴리프로필렌 중공사는 폴리프로필렌 원사의 단면상에 중공부(2)들이 랜덤하게 분포되어 있으며, 중공부(2)의 총단면적이 폴리프로필렌 원사(1)의 전체 단면적 대비 30% 이상인 것을 특징으로 한다.The polypropylene hollow yarn of the present invention for achieving the above problems are randomly distributed hollow portions 2 on the cross section of the polypropylene yarn, the total cross-sectional area of the hollow portion (2) is the total cross-sectional area of the polypropylene yarn (1) It is characterized in that more than 30%.
또한 본 발명의 제조방법은 알칼리 이용해성(易溶解性) 공중합 폴리에스테르를 도성분으로 사용하고 섬유형성성 폴리머인 폴리프로필렌을 해성분으로 사용하여 이들을 통상의 해도형 복합방사장치로 용융방사, 냉각, 고화 및 연신하여 해도형 복합섬유를 제조한 다음, 제조된 해도형 복합섬유를 알칼리 수용액에 디핑시켜 도성분을 용출시킨 후 수세, 건조함을 특징으로 한다.In addition, the production method of the present invention using alkali-soluble copolyester as the island component and polypropylene, a fiber-forming polymer, as the sea component, these are melt-spun and cooled by a conventional island-in-the-sea composite spinning machine After the solidification and stretching to prepare the island-in-the-sea composite fiber, and then dipping the prepared island-in-the-sea composite fiber in an aqueous alkali solution, eluting the island component, it is characterized by washing with water and drying.
이하, 첨부된 도면 등을 통하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
먼저, 본 발명은 통상의 해도형 복합방사 장치로 알칼리 이용해성인 공중합폴리에스테르를 도성분으로 공급하고, 섬유형성성 성분인 폴리프로필렌을 해성분으로 공급하여 도 2와 같은 단면형상을 갖는 해도형 복합섬유를 제조한다. 제조된 해도형 복합섬유는 해성분인 섬유형성성 폴리프로필렌(1) 내에 도성분인 공중합 폴리에스테르(3)들이 랜덤하게 배열되어 있다. 이때 용융온도는 220~230℃, 연신온도는 120℃ 수준으로 조절하는 것이 바람직 하다.First, the present invention is an island-in-the-sea composite having a cross-sectional shape as shown in FIG. 2 by supplying an alkali-soluble copolyester as a island component with a conventional island-in-the-sea composite spinning device, and supplying polypropylene as a sea component Prepare the fibers. The prepared island-in-the-sea composite fiber has randomly arranged co-polyester (3) as an island component in the fiber-forming polypropylene (1) as a sea component. At this time, the melting temperature is preferably 220 ~ 230 ℃, the stretching temperature is adjusted to 120 ℃ level.
상기 도성분인 공중합 폴리에스테르로는 폴리에스테르에 디메틸이소프탈레이트 술포네이트 솔트(이하 "DMIS"라 한다)가 3~15몰% 공중합된 것을 사용하는 것이 좋다. 더욱 바람직 하기로는 상기 공중합 폴리에스테르에 수평균 분자량이 8,000 이상인 폴리에틸렌글리콜(이하 "PEG"라고 한다)이 4~20중량% 블랜딩 된 것을 사용하는 것이 추후 용출공정에 유리하다.As the co-polyester as the island component, it is preferable to use a copolymer of 3 to 15 mol% of dimethyl isophthalate sulfonate salt (hereinafter referred to as "DMIS") in polyester. More preferably, it is advantageous to use a copolymer obtained by blending 4 to 20% by weight of polyethylene glycol having a number average molecular weight of 8,000 or more (hereinafter referred to as "PEG") in the copolyester.
DMIS 또는 PEG의 함량이 상기 범위를 초과하는 경우에는 공중합폴리에스테르가 무정형이 되어 방사가 곤란하게 될 수 있으며, 상기 범위보다 적을 경우에는 추후 알칼리 수용액에 의한 용출이 어렵게 될 수도 있다.When the content of DMIS or PEG exceeds the above range, the copolyester may become amorphous and difficult to spin, and when less than the above range, it may be difficult to later elute with an aqueous alkali solution.
다음으로는 제조된 해도형 복합섬유를 95℃ 정도의 알칼리 수용액에 30분 정도 디핑시켜, 도성분인 공중합폴리에스테르를 용출시킨 후 수세, 건조하여 도 1과 같은 폴리프로필렌 중공사를 제조한다. 이때 알칼리 수용액으로는 농도가 2~5%인 NaOH 수용액을 사용하는 것이 좋다.Next, the prepared island-in-the-sea composite fiber was dipped in an aqueous alkali solution at about 95 ° C. for about 30 minutes, eluted the copolyester as an island component, followed by washing with water and drying to prepare a polypropylene hollow fiber as shown in FIG. 1. At this time, it is preferable to use NaOH aqueous solution of 2-5% of concentration as aqueous alkali solution.
상기 알칼리 수용액 처리에 의해 해도형 복합섬유 내 도성분으로 배열되어 있는 공중합폴리에스테르(3)는 용출, 제거되고, 그 부분은 중공부(2)로 변하게 된다. 최종제품의 중공율을 30% 이상으로 하기 위해서 복합방사시 원사단면상 도성분의 면적비율이 전체원사 단면적 대비 30% 이상이 되도록 조절 하여야 한다. 한편, 섬유형성성 성분인 폴리프로필렌(해성분)은 내알칼리성이 우수하기 때문에 상기 알칼리 수용액 처리에 의해서도 용출되지 않고, 물성도 저하되지 않는다.By the aqueous alkali solution treatment, the copolyester 3 arranged in the island component in the island-in-the-sea composite fiber is eluted and removed, and the part is changed into the hollow part 2. In order to make the hollow ratio of the final product more than 30%, the area ratio of the conductive component in the yarn cross-section should be more than 30% of the total yarn cross-sectional area in the composite spinning. On the other hand, since polypropylene (sea component) which is a fiber forming component is excellent in alkali resistance, it does not elute also by the said aqueous alkali solution process, and neither a physical property falls.
이와 같이 제조된 본 발명을 폴리프로필렌 섬유는 도 1과 같은 단면 형상을 갖는다. 구체적으로 단면상에 중공부(2)들이 랜덤하게 배열되어 있고, 중공율이 30% 이상이다. 이와 같은 높은 중공율과 폴리프로필렌 자체의 낮은 비중(0.91) 때문에 경량성과 보온성이 매우 우수하게 된다. 아울러 본 발명은 해도형 복합섬유 제조 후, 후가공 공정에서 중공사를 제조하기 때문에 중공율이 향상되어도 방사시 절사 등의 문제가 발생되지 않게 된다.Polypropylene fiber according to the present invention prepared as described above has a cross-sectional shape as shown in FIG. Specifically, the hollow portions 2 are randomly arranged on the cross section, and the hollow ratio is 30% or more. Due to such high hollow ratio and low specific gravity (0.91) of the polypropylene itself, it is very excellent in light weight and insulation. In addition, since the present invention manufactures hollow fiber in the post-processing process after manufacturing the island-in-the-sea composite fiber, even if the hollow ratio is improved, problems such as cutting during spinning do not occur.
이하 실시예 및 비교실시예를 통하여 본 발명을 더욱 구체적으로 살펴본다. 그러나 본 발명이 하기 실시예에만 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the present invention is not limited only to the following examples.
실시예 1Example 1
통상의 해도형 복합방사 장치에 DMIS가 10몰% 공중합 되고, PEG가 5중량% 혼합된 알칼리 이용해성 공중합폴리에스테르를 도성분으로, 폴리프로필렌을 해성분으로 공급하여 215℃에서 이들을 복합방사(해성분 단면적 : 도성분 단면적 비 = 65:35)하고, 계속해서 방사된 원사를 냉각, 고화한 후 120℃에서 2.0배 연신하여 해도형 복합섬유를 제조 하였다. 다음으로 상기 해도형 복합섬유를 95℃의 3% NaOH 수용액에 30분간 디핑처리 하여 도성분을 용출시킨 다음 수세 건조하여 도 1의 폴리프로필렌 중공사를 제조 하였다. 이 경우 방사시 절사로 인한 조업성 저하는 없었고, 제조된 폴리프로필렌 중공사의 중공율이 35%로 보온성 및 경량성이 매우 양호 하였다.10 mole% of copolymerized DMIS and 5% by weight of PEG are mixed in a conventional island-in-the-sea composite spinning device, and polypropylene is supplied as a sea component and polyspun at 215 ° C. Minute cross-sectional area: island component cross-sectional ratio = 65:35), and then the yarn spun after cooling and solidifying was drawn 2.0 times at 120 ℃ to prepare a island-in-the-sea composite fiber. Next, the island-in-the-sea composite fiber was dipped in a 3% NaOH aqueous solution at 95 ° C. for 30 minutes to elute the island components, and then washed with water to prepare polypropylene hollow fiber of FIG. 1. In this case, there was no deterioration in operating efficiency due to cutting during spinning, and the heat retention rate and light weight of the polypropylene hollow fiber were 35%.
비교실시예 1Comparative Example 1
통상의 중공사 방사장치에 폴리프로필렌 수지를 투입하여, 이를 용융 방사하고, 방사된 원사를 냉각, 고화한 후 120℃에서 2.0배 연신하여 중공율이 35%인 도 3의 폴리프로필렌 중공사를 제조 하였다. 이 경우 방사시 절사가 너무 심하여상업적 생산이 불가능 하였다.A polypropylene resin was added to a conventional hollow fiber spinning apparatus, melt spun, and the spun yarn was cooled and solidified, and stretched 2.0 times at 120 ° C. to prepare polypropylene hollow fiber of FIG. 3 having a hollow ratio of 35%. It was. In this case, the cutting was so severe during spinning that commercial production was impossible.
비교실시예 2Comparative Example 2
통상의 중공사 방사장치에 폴리프로필렌 수지를 투입하여, 이를 용융 방사하고, 방사된 원사를 냉각, 고화한 후 120℃에서 2.0배 연신하여 중공율이 15%인 도 3의 폴리프로필렌 중공사를 제조 하였다. 이 경우 방사조업성은 우수하였으나, 중공율이 낮아 보온성 및 경량성이 불량 하였다.A polypropylene resin was added to a conventional hollow fiber spinning apparatus, melt spun, and the spun yarn was cooled and solidified and stretched 2.0 times at 120 ° C. to prepare polypropylene hollow fiber of FIG. 3 having a hollow ratio of 15%. It was. In this case, the spinning operation was excellent, but the hollowness was low, and the insulation and light weight were poor.
본 발명은 원사를 구성하는 폴리머의 비중이 0.91수준으로 낮고, 중공율도 30% 이상이기 때문에 의류제품용 원사로 사용시 최종제품의 경량성 및 보온성을 크게 향상 시킨다. 아울러 본 발명은 해도형 복합섬유 제조기술을 활용하여 폴리프로필렌 중공사를 제조하기 때문에 중공율 증가로 인한 사절을 예방하여 방사 조업성을 개선 할 수 있다.In the present invention, since the specific gravity of the polymer constituting the yarn is as low as 0.91, and the hollow ratio is also 30% or more, it greatly improves the lightness and thermal insulation of the final product when used as a yarn for apparel products. In addition, the present invention is to produce a polypropylene hollow fiber using the island-in-the-sea composite fiber manufacturing technology, it is possible to improve the spinning operation by preventing the trimming due to the increase in the hollow ratio.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0000008A KR100386742B1 (en) | 2001-01-02 | 2001-01-02 | A polypropylene hollow fiber, and a process of preparing for the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0000008A KR100386742B1 (en) | 2001-01-02 | 2001-01-02 | A polypropylene hollow fiber, and a process of preparing for the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020057300A KR20020057300A (en) | 2002-07-11 |
| KR100386742B1 true KR100386742B1 (en) | 2003-06-09 |
Family
ID=27690494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2001-0000008A KR100386742B1 (en) | 2001-01-02 | 2001-01-02 | A polypropylene hollow fiber, and a process of preparing for the same |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100386742B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101284246B1 (en) | 2009-11-17 | 2013-07-09 | 한국생산기술연구원 | A Method for Preparing Sea-Island-Type Fiber by High-Speed Melt Spinning, Sea-Island-Type Fiber Prepared Thereby, A Method for Preparing Nano-Fiber, Nano-Fiber Prepared Thereby and Composite Comprising the Nano-Fiber |
| US20190071797A1 (en) * | 2016-03-11 | 2019-03-07 | Toray Industries, Inc. | Dyeable polyolefin fiber and fibrous structure comprising same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101357793B1 (en) * | 2012-05-23 | 2014-02-04 | 웅진케미칼 주식회사 | Manufacturing method of soluble conjugated hollow yarn |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039412A (en) * | 1983-08-11 | 1985-03-01 | Kuraray Co Ltd | Mixed yarn for forming nonwoven fabric |
| JPH06248514A (en) * | 1993-02-23 | 1994-09-06 | Daiwabo Co Ltd | Anti-pilling fiber |
| JPH07316977A (en) * | 1994-05-20 | 1995-12-05 | Kuraray Co Ltd | Porous type hollow fiber and its production |
| JP2000314036A (en) * | 1999-04-27 | 2000-11-14 | Toray Ind Inc | Hollow false twist textured yarn and its production |
-
2001
- 2001-01-02 KR KR10-2001-0000008A patent/KR100386742B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039412A (en) * | 1983-08-11 | 1985-03-01 | Kuraray Co Ltd | Mixed yarn for forming nonwoven fabric |
| JPH06248514A (en) * | 1993-02-23 | 1994-09-06 | Daiwabo Co Ltd | Anti-pilling fiber |
| JPH07316977A (en) * | 1994-05-20 | 1995-12-05 | Kuraray Co Ltd | Porous type hollow fiber and its production |
| JP2000314036A (en) * | 1999-04-27 | 2000-11-14 | Toray Ind Inc | Hollow false twist textured yarn and its production |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101284246B1 (en) | 2009-11-17 | 2013-07-09 | 한국생산기술연구원 | A Method for Preparing Sea-Island-Type Fiber by High-Speed Melt Spinning, Sea-Island-Type Fiber Prepared Thereby, A Method for Preparing Nano-Fiber, Nano-Fiber Prepared Thereby and Composite Comprising the Nano-Fiber |
| US20190071797A1 (en) * | 2016-03-11 | 2019-03-07 | Toray Industries, Inc. | Dyeable polyolefin fiber and fibrous structure comprising same |
| US10793976B2 (en) * | 2016-03-11 | 2020-10-06 | Toray Industries, Inc. | Dyeable polyolefin fiber and fibrous structure comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020057300A (en) | 2002-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101490317A (en) | Multilobal filament, fabrics and process for making the same | |
| JP2022552567A (en) | Polyamide sea-island fibers, methods of making the same, and uses thereof | |
| CN107313128A (en) | A kind of PBT fiber fabrication process | |
| CN101638815B (en) | Full-dull cationic-dyeable polyester fibers and production method | |
| CN104562291A (en) | Aromatic compound short fiber and preparation method thereof | |
| CN103122500B (en) | A kind of Splittable conjugate fiber and obtained Superfine Fibre Fabric thereof | |
| CN103572399A (en) | Skin-core type composite fiber and production method thereof | |
| KR100386742B1 (en) | A polypropylene hollow fiber, and a process of preparing for the same | |
| JP3703775B2 (en) | Endothermic composite fiber | |
| CN103122499B (en) | A kind of Splittable conjugate fiber and Superfine Fibre Fabric | |
| CN103421169B (en) | A kind of preparation method of the low-molecular-weight polyester for the manufacture of multicomponent fibre | |
| JPH06200417A (en) | Conjugate fiber containing heat-accumulation material and its production | |
| JPH09279476A (en) | Polyamide hollow fiber having fine pour and its production | |
| CN101864604A (en) | Double-component fiber and production method thereof | |
| JP2006022451A (en) | Fiber having excellent heat-storing and temperature-keeping properties | |
| JPS5838526B2 (en) | Gokubososen Inoseizouhou | |
| KR20080112564A (en) | Manufacturing method of conjugate fiber having excellent water repellent and fiber thereof | |
| CN112918045A (en) | Degradable polyester fabric and manufacturing method thereof | |
| CN112813526A (en) | High-performance polyester filament yarn and production method thereof | |
| KR101857209B1 (en) | Latent crimping typed two component conjugated yarn with high sensibility and Manufacturing method thereof | |
| KR102274289B1 (en) | Polyester composition for manufacturing composite fiber with deep coloration, composite fiber manufactured including the same composition and manufacturing method of the same fiber | |
| CN103422190A (en) | Split type composite fiber and superfine fiber fabric prepared by same | |
| KR102276231B1 (en) | Polyester composition for manufacturing one-component fiber with excellent deep coloration, one-component fiber manufactured thereby and manufacturing method thereof | |
| CN103668551B (en) | A kind of Splittable conjugate fiber and prepared Superfine Fibre Fabric thereof | |
| JPH073554A (en) | Production of false-twisted hollow polyester yarn |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20130502 Year of fee payment: 11 |
|
| FPAY | Annual fee payment |
Payment date: 20140526 Year of fee payment: 12 |
|
| FPAY | Annual fee payment |
Payment date: 20150625 Year of fee payment: 13 |
|
| FPAY | Annual fee payment |
Payment date: 20160427 Year of fee payment: 14 |
|
| FPAY | Annual fee payment |
Payment date: 20180502 Year of fee payment: 16 |
|
| FPAY | Annual fee payment |
Payment date: 20190502 Year of fee payment: 17 |