KR19980017269A - Method for producing polypropylene fiber for carpet - Google Patents

Method for producing polypropylene fiber for carpet Download PDF

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Publication number
KR19980017269A
KR19980017269A KR1019960037032A KR19960037032A KR19980017269A KR 19980017269 A KR19980017269 A KR 19980017269A KR 1019960037032 A KR1019960037032 A KR 1019960037032A KR 19960037032 A KR19960037032 A KR 19960037032A KR 19980017269 A KR19980017269 A KR 19980017269A
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South Korea
Prior art keywords
polypropylene fiber
producing
resin
carpet
mol
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KR1019960037032A
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Korean (ko)
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KR0169887B1 (en
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서승원
김정호
박용철
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백영배
동양나이론주식회사
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    • 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
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2503/00—Domestic or personal
    • D10B2503/04—Floor or wall coverings; Carpets

Abstract

본 발명은 카페트용 폴리프로필렌 섬유의 제조방법에 관한 것으로서, 가공성 및 부드러운 촉감을 가진 폴리프로필렌 카페트를 제공하기 위한 고감성 폴리프로필렌 섬유의 제조방법을 제공함을 그 목적으로 한다.The present invention relates to a method for producing a polypropylene fiber for carpet, and to provide a method for producing a highly sensitive polypropylene fiber for providing a polypropylene carpet having a processability and a soft touch.

본 발명은 폴리프로필렌 섬유를 제조하기 위한 수지를 혼합, 용융, 압출방사하여 폴리프로필렌 섬유를 제조함에 있어서, 폴리프로필렌 섬유를 제조하기 위한 수지로서 90mol% 이상의 프로필렌 성분과 10mol% 이하의 에틸렌 성분으로 구성되고 용융흐름지수가 10-30g/10분(230℃에서 측정)인 프로필렌-에틸렌 랜덤 공중합체 수지를 사용함을 특징으로 한다.The present invention is to prepare a polypropylene fiber by mixing, melting and extrusion spinning a resin for producing a polypropylene fiber, a resin for producing a polypropylene fiber composed of more than 90 mol% propylene component and less than 10 mol% ethylene component And a propylene-ethylene random copolymer resin having a melt flow index of 10-30 g / 10 min (measured at 230 ° C.).

Description

카페트용 폴리프로필렌 섬유의 제조방법Method for producing polypropylene fiber for carpet

본 발명은 카페트용 폴리프로필렌 섬유의 제조방법에 관한 것으로서, 더욱 상세하게는 폴리프로필렌 섬유의 개질 조건을 달리함으로써 부드러운 촉감이 부여되어 카페트 제조용으로 매우 유용한 고감성 폴리프로필렌 섬유의 제조방법에 관한 것이다.The present invention relates to a method for producing a polypropylene fiber for carpet, and more particularly, to a method for producing a highly sensitive polypropylene fiber, which is given a soft touch by changing the modification conditions of the polypropylene fiber and is very useful for producing a carpet.

일반적으로 폴리프로필렌 섬유를 이용한 성형품은 두께 0.2㎜ 정도의 얇은 것으로부터 20㎜ 정도의 두꺼운 것까지 용이하게 성형할 수 있는데, 두께가 얇은 것은 포장, 피복재, 침구, 의료용 위생재료, 필터 등의 용도로 사용되고, 두꺼운 것은 기름흡착재나 도로공사, 지반개량 등의 토목공사용 재료 및 카페트용 재료로 널리 사용된다. 또한 이러한 폴리프로필렌 섬유를 기재로하여 만든 BCF(Bulk Continuous Filament)는 가볍고, 내약품성, 저흡습성 및 항균성이 뛰어나고, 일광견뢰도가 우수하며 가격이 저렴하여 실내용 또는 옥외용의 카페트용 원사로 넓게 사용되고 있다. 특히 실내용 또는 가정용 카페트의 경우에는 고감성 제품이 요구된다.In general, molded products using polypropylene fibers can be easily molded from as thin as about 0.2 mm to as thick as about 20 mm. The thin material is used for packaging, coating, bedding, medical hygiene materials, filters, etc. The thick ones are widely used as materials for civil engineering and carpet materials such as oil absorbers, road works, and ground improvement. In addition, BCF (Bulk Continuous Filament) made of polypropylene fiber as a base material is light, has excellent chemical resistance, low hygroscopicity and antimicrobial properties, and is widely used as a yarn for carpets for indoor or outdoor use due to its excellent daylight fastness and low price. . Especially for indoor or home carpets, high sensitivity products are required.

미국특허 3,276,944호 및 3,338,922호에서는 폴리프로필렌만을 이용하여 섬유를 제조하는 방법에 대하여 기술하고 있으나, 이 방법으로 제조된 폴리프로필렌 섬유는 상업적인 생산은 용이하지만 부드러운 정도나 벌키성이 떨어지기 때문에 가정용 카페트로는 적합하지가 않다.U.S. Patent Nos. 3,276,944 and 3,338,922 describe a method for producing fibers using only polypropylene, but the polypropylene fibers produced by this method are easy to commercially produced, but are soft and bulky. Is not suitable.

이러한 결점을 보완하기 위하여 벌키성을 제공하는 방법 및 이를 개선하기 위한 많은 시도가 제안되고 있는데, 이러한 벌키성의 제공 등으로 인하여 기존의 제품에 비하여 촉감면에서는 많은 향상이 있으나, 이러한 벌키성의 제공만으로는 충분히 부드러운 촉감을 가진 폴리프로필렌 카페트를 제조하기가 불충분하다.In order to compensate for these drawbacks, a number of methods for providing bulkiness and improvement have been proposed. However, due to the provision of bulkiness, there are many improvements in touch compared to existing products. Insufficient production of polypropylene carpets with soft touch.

또한 일본특허 특개평 7-3528호에서는 카페트 제조용 섬유에 사용할 수 있는 수지 조성물에 대하여 기술하고 있다. 이 문헌에서는 폴리에스터 수지를 기본으로 하여 변형된 폴리올레핀을 첨가하는 방법을 사용하고 있는데, 이 방법을 사용하여 제조된 섬유는 벌키성이 뛰어나고 유연성이 뛰어난 장점을 가지고 있지만 섬유제조시 부드러운 촉감을 향상시켜 고감성의 섬유를 제조하였다는 점이 명백히 기재되어 있지 않아 커다란 개량효과는 기대되지 않는다.In addition, Japanese Patent Laid-Open No. 7-3528 describes a resin composition that can be used for fibers for carpet production. In this document, a method of adding modified polyolefin based on polyester resin is used. The fiber produced using this method has the advantages of excellent bulkiness and flexibility, but improves the soft touch when manufacturing the fiber. It is not clearly stated that a highly sensitive fiber was produced, so a great improvement effect is not expected.

본 발명은 상기 종래기술들의 단점들을 해결하기 위한 것으로서, 가공성 및 부드러운 촉감을 가진 폴리프로필렌 카페트를 제공하기 위한 고감성 폴리프로필렌 섬유의 제조방법을 제공함을 그 목적으로 한다.The present invention is to solve the disadvantages of the prior art, it is an object of the present invention to provide a method for producing a highly sensitive polypropylene fiber for providing a polypropylene carpet with processability and soft touch.

본 발명은 폴리프로필렌 섬유를 제조하기 위한 수지를 혼합, 용융, 압출방사하여 섬유를 제조함에 있어서, 폴리프로필렌 섬유를 제조하기 위한 수지로서 90mol%이상의 프로필렌 성분과 10mol% 이하의 에틸렌 성분으로 구성되고 용융흐름지수(Melt Index : MI)가 10 - 30g/10분(230℃에서 측정)인 프로필렌-에틸렌 램덤 공중합체를 사용하고, 압출방사시 방사팩에서 800sec-1이상의 전단속도하에서 3 - 20분간 체류시키고 최종 구금공에서 3,000sec-1이상의 전단속도 및 200 - 270℃의 온도에서 압출방사시킴을 특징으로 한다.The present invention is a resin for producing a polypropylene fiber in mixing, melting, and extrusion spinning a resin for producing a polypropylene fiber, as a resin for making a polypropylene fiber of 90 mol% or more and 10 mol% or less ethylene component and melted Propylene-ethylene random copolymer with a flow index (Melt Index: MI) of 10-30 g / 10 min (measured at 230 ° C) and stayed for 3-20 min at a shear rate of 800 sec -1 or higher in the spin pack during extrusion And extruded at a shear rate of at least 3,000 sec −1 and a temperature of 200-270 ° C. in the final hole.

이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.

본 발명에서 사용된 프로필렌-에틸렌 랜덤 공중합체는 결정성의 폴리프로필렌계 수지이며, 수평균 분자량은 7,000 내지 800,000, 바람직하기로는 10,000 내지 700,000이고, 또한 용융흐름지수(Melt Index : MI)는 10 - 30g/10분(230℃에서 측정)인 것이다.The propylene-ethylene random copolymer used in the present invention is a crystalline polypropylene resin, the number average molecular weight is 7,000 to 800,000, preferably 10,000 to 700,000, and the melt flow index (Melt Index: MI) is 10-30 g / 10 minutes (measured at 230 ° C).

일반적으로 결정성 폴리프로필렌 중합체는 프로필렌의 단일 중합체 또는 랜덤 공중합체로서 예를 들면 통상 지글러-나타(Ziegler-Natta)형 촉매라고 호칭되는 삼염화티탄 및 알킬알루미늄 화합물과의 조합 촉매의 존재하에서 중합시켜 얻을 수 있는데, 중합시 중합온도를 0℃ 내지 300℃까지에 걸쳐서 실시할 수가 있으나 프로필렌의 고입체 규칙성 중합에 있어서 100℃ 이상에서 중합시에는 고도의 입체 규칙성을 갖는 중합체가 얻어지지 않기 때문에 통상 0℃ 내지 100℃의 범위에서 중합을 행하는 것이 적합하다. 중합 압력에 관해서는 특히 제한은 없으나 공업적 또는 경제적이라는 점에서 3 내지 100 기압 정도의 압력이 바람직하며, 또한 중합시 에틸렌이나 1-부텐을 첨가하여도 무방하다.Generally crystalline polypropylene polymers are obtained as a homopolymer or random copolymer of propylene, for example obtained by polymerization in the presence of a combination catalyst with titanium trichloride and alkylaluminum compounds, commonly referred to as Ziegler-Natta type catalysts. Although the polymerization temperature can be carried out from 0 ° C. to 300 ° C. during the polymerization, a polymer having a high stereoregularity is not obtained when the polymerization is performed at 100 ° C. or higher in the high-stereoregular polymerization of propylene. It is suitable to perform superposition | polymerization in the range of 0 degreeC-100 degreeC. Although there is no restriction | limiting in particular about polymerization pressure, Since it is industrial or economical, the pressure of about 3-100 atmosphere is preferable, and ethylene or 1-butene may be added at the time of superposition | polymerization.

본 발명의 경우에는 90mol% 이상의 프로필렌과 10mol% 이하의 에틸렌으로 구성된 프로필렌-에틸렌 랜덤 공중합체를 사용하는데, 에틸렌 성분이 10mol% 이상이 되면 부드러운 촉감은 증가하지만 섬유의 물성을 유지하고 있는 프로필렌의 함량이 적어지게 되어 전체적으로 카페트용 폴리프로필렌 섬유의 물성은 불량하게 된다.In the present invention, a propylene-ethylene random copolymer composed of 90 mol% or more of propylene and 10 mol% or less of ethylene is used. When the ethylene component is 10 mol% or more, the soft touch increases but the content of propylene retaining the physical properties of the fiber. As a result, the physical properties of the polypropylene fiber for carpet as a whole become poor.

한편 본 발명에서 상기의 수지를 용융, 압출방사함에 있어서는 상기의 수지를 방사팩에서 800sec-1이상의 전단속도하에서 3 - 20분간 체류하여야 한다. 전단속도가 800sec-1미만이면 폴리머 용융라인 벽면에서 전단응력이 충분하지 않아 가공상 문제점이 생기게 되며, 따라서 최종 섬유에 있어서 부드러운 촉감을 충분히 주지 못하게 된다.Meanwhile, in the present invention, in melting and extruding the resin, the resin should be kept for 3-20 minutes at a shear rate of 800 sec −1 or more in a spinning pack. If the shear rate is less than 800 sec −1 , the shear stress is insufficient at the polymer melt line wall, thereby causing a problem in processing, thus failing to give a sufficient soft touch to the final fiber.

또한 전단속도를 800sec-1이상으로 유지하였다고 하더라도 반드시 고감성 섬유가 제조되는 것은 아니다. 만약 체류시간이 3분 미만인 경우에는 에틸렌 성분이 프로필렌 성분에 충분히 분산되지 않기 때문에 최종제품에 부드러운 촉감을 부여하기가 어렵게 되며, 체류시간이 20분을 초과하는 경우에 있어서는 파이프 내에서의 열분해(thermal degradation)현상이 지나치게 되어 양호한 물성의 섬유를 얻기 힘들게 된다.In addition, even if the shear rate is maintained at 800 sec -1 or more, highly sensitive fibers are not necessarily produced. If the residence time is less than 3 minutes, it is difficult to give a soft touch to the final product because the ethylene component is not sufficiently dispersed in the propylene component, and if the residence time exceeds 20 minutes, thermal decomposition in the pipe Degradation is excessive and it is difficult to obtain fibers of good physical properties.

또한, 본 발명에서는 상기 수지를 방사할 경우, 제조되는 섬유의 부드러운 촉감을 향상시키기 위하여 최종 압출영역인 구금공에서의 전단속도를 3,000 sec-1이상으로, 온도를 200 - 270℃로 유지한다. 특히 혼합방사할 경우에 전단속도가 3,000 sec-1미만이면 구금공을 나오는 분자쇄의 리코일링(recoiling)이 일어나, 부드러운 촉감을 향상시키는 효과가 미흡하게 된다.In addition, in the present invention, when spinning the resin, in order to improve the soft touch of the fiber to be produced, the shear rate in the final extrusion zone of the hole in the hole is maintained at 3,000 sec -1 or more, the temperature is maintained at 200-270 ℃. In particular, in the case of mixed spinning, if the shear rate is less than 3,000 sec −1, the recoiling of the molecular chain leaving the hole occurs, resulting in an insufficient effect of improving the soft touch.

이하, 본 발명을 실시예 및 비교예를 통해 설명하면 다음과 같으며, 본 발명의 범위가 이들 실시예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described through Examples and Comparative Examples as follows, but the scope of the present invention is not limited by these Examples.

[실시예 1]Example 1

99mol%의 프로필렌과 1mol%의 에틸렌 성분으로 구성되고 용융흐름지수 14g/10분, 분자량 300,000인 랜덤 공중합체를 방사팩에서 1,000sec-1의 전단속도로 10분간 체류시키고 용융온도를 250℃로하여 구금공에서의 전단속도 6,000sec-1로 압출방사하여 연신배율 3, 연신온도 100℃로 하고 에어온도 160℃에서 텍스츄어링(Texturing)하여 1200D/80F의 BCF사를 얻었다. 얻어진 BCF사를 이용하여 일반적인 방법으로 카페트를 제조하였으며, 그 물성을 측정하여 그 결과를 다음 표 1에 나타내었다.A random copolymer composed of 99 mol% of propylene and 1 mol% of ethylene, having a melt flow index of 14 g / 10 minutes and a molecular weight of 300,000 was kept in a spinning pack for 10 minutes at a shear rate of 1,000 sec -1 and the melting temperature was set at 250 ° C. BCF yarns of 1200D / 80F were obtained by extrusion spinning at a shear rate of 6,000 sec -1 at a pore hole and stretching to 3, stretching temperature of 100 ° C, and texturing at an air temperature of 160 ° C. Carpet was prepared by the general method using the obtained BCF company, the physical properties are measured and the results are shown in Table 1 below.

[실시예 2]Example 2

95mol%의 프로필렌과 5mol%의 에틸렌 성분으로 구성된 랜덤 공중합체를 사용하는 것을 제외하고는 실시예 1과 동일한 방법을 사용하여 카페트를 제조하였다. 물성을 측정하여 그 결과를 다음 표 1에 나타내었다.Carpets were prepared in the same manner as in Example 1, except that a random copolymer composed of 95 mol% propylene and 5 mol% ethylene components was used. The physical properties were measured and the results are shown in Table 1 below.

[비교예 1]Comparative Example 1

상기의 램덤 공중합체 대신 폴리프로필렌 단일 중합체를 사용하는 것을 제외하고는 실시예 1과 동일한 방법을 사용하여 카페트를 제조하였다. 물성을 측정하여 그 결과를 다음 표 1에 나타내었다.Carpets were prepared in the same manner as in Example 1 except for using the polypropylene homopolymer instead of the random copolymer. The physical properties were measured and the results are shown in Table 1 below.

[비교예 2]Comparative Example 2

85mol%의 프로필렌과 15mol%의 에틸렌 성분으로 구성된 랜덤 공중합체를 사용하는 것을 제외하고는 실시예 1과 동일한 방법을 사용하여 카페트를 제조하였다. 물성을 측정하여 그 결과를 다음 표 1에 나타내었다.Carpets were prepared in the same manner as in Example 1, except that a random copolymer composed of 85 mol% propylene and 15 mol% ethylene components was used. The physical properties were measured and the results are shown in Table 1 below.

※ 용융흐름지수 : ASTM D-1238에 의거하여 230℃, 2.16kg의 조건하에서 측정하여 g/10분으로 나타냄.※ Melt Flow Index: Measured under ASTM D-1238 at 230 ℃ and 2.16kg, and expressed as g / 10min.

※ 섬유의 인장강도 및 신도 : JIS L-1096의 스트립법에 의거하여 평가.※ Tensile strength and elongation of fiber: evaluated according to strip method of JIS L-1096.

※ 고감성 : 25℃ × 60% RH의 조건하에서 방사하여 얻은 섬유를 랩 터프팅 머신(Lab Tufting Machine)을 이용하여 터프티드(Tufted) 카페트를 만들고 얻어진 카페트를 10명의 촉감 판정자에 의하여 판정※ High Sensitivity: The fiber obtained by spinning under the condition of 25 ℃ 60% RH is made by using a Tufting Machine, and the obtained carpet is judged by 10 tactile judges.

예) 고감성 10 : 10명 전원이 양호하다고 판정.Ex) High sensitivity 10: 10 All judged good.

6 : 10명 중 6명이 양호하다고 판정.6: 6 out of 10 judged good.

본 발명에서와 같이 프로필렌-에틸렌 공중합체 수지 조성물을 사용하여 제조되는 폴리프로필렌 섬유는 매우 부드러운 촉감을 지니게 되므로, 카페트 제조용 원사로 매우 유용하게 사용할 수 있다.Polypropylene fiber produced using the propylene-ethylene copolymer resin composition as in the present invention has a very soft touch, it can be very useful as a yarn for carpet production.

Claims (2)

폴리프로필렌 섬유를 제조하기 위한 수지를 혼합, 용융, 압출방사하여 폴리프로필렌 섬유를 제조함에 있어서, 폴리프로필렌 섬유를 제조하기 위한 수지로서 90mol% 이상의 프로필렌 성분과 10mol% 이하의 에틸렌 성분으로 구성되고 용융흐름지수가 10-30g/10분(230℃에서 측정)인 프로필렌-에틸렌 랜덤 공중합체 수지를 사용함을 특징으로 하는 카페트용 폴리프로필렌 섬유의 제조방법.In preparing polypropylene fiber by mixing, melting and extrusion spinning a resin for producing polypropylene fiber, the resin for producing polypropylene fiber is composed of 90 mol% or more of propylene component and 10 mol% or less of ethylene component and melt flow A method for producing a polypropylene fiber for carpets, characterized by using a propylene-ethylene random copolymer resin having an index of 10-30 g / 10 min (measured at 230 ° C.). 제 1항에 있어서, 수지의 압출방사시 수지를 방사팩에서 800sec-1이상의 전단속도하에서 3 - 20분간 체류시키고 최종 구금공에서 3,000sec-1이상의 전단속도 및 200 - 270℃의 온도에서 압출방사시킴을 특징으로 하는 카페트용 폴리프로필렌 섬유의 제조방법.According to claim 1, wherein the three or more shear rate of 800sec -1 under the resin during extrusion spinning of the resin in the spinning pack to extrusion from the spinning temperature of 270 ℃ - 20 minutes and stays in the final ball detention 3,000sec than -1 shear rate and 200 Method for producing a polypropylene fiber for carpets, characterized in that.
KR1019960037032A 1996-08-30 1996-08-30 Method of manufacturing carpet polypropylene fiber KR0169887B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100468911B1 (en) * 1997-09-25 2005-04-08 주식회사 효성 Manufacturing method of polypropylene fiber for carpet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100468911B1 (en) * 1997-09-25 2005-04-08 주식회사 효성 Manufacturing method of polypropylene fiber for carpet

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