KR100291311B1 - Modified cross-section polyester yarn and manufacturing method thereof - Google Patents
Modified cross-section polyester yarn and manufacturing method thereof Download PDFInfo
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- KR100291311B1 KR100291311B1 KR1019980045377A KR19980045377A KR100291311B1 KR 100291311 B1 KR100291311 B1 KR 100291311B1 KR 1019980045377 A KR1019980045377 A KR 1019980045377A KR 19980045377 A KR19980045377 A KR 19980045377A KR 100291311 B1 KR100291311 B1 KR 100291311B1
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- 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
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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- 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
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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
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
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- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
본 발명은 세 개이상의 돌출부를 갖는 이형단면 폴리에스터사 및 그 제조방법에 관한 것이다.The present invention relates to a release cross-section polyester yarn having three or more protrusions and a method of manufacturing the same.
폴리에스터사는 의료용 소재로서 널리 이용되고 있는바, 우수한 물리적, 화학적 내구성을 갖는 장점이 있으나 견, 양모, 면, 마등의 천연섬유에 비하여 흡습성이 저하되어 동절기에 정전기발생이 심하고 또한 땀이나 수분의 흡수능력이 적어서 고급 의료용으로서 부적합한 단점이 있다.Polyester is widely used as a medical material, and has the advantages of having excellent physical and chemical durability. However, the hygroscopicity is lowered compared to natural fibers such as silk, wool, cotton, and hemp. There is a disadvantage that it is inadequate for advanced medical use due to its low capacity.
폴리에스터사의 흡습성을 개선하기 위해 폴리머 단계에서 화학성분을 공중합 또는 블렌딩하여 영구제전성능을 갖도록 하는 제조방법이 있으나, 이는 제전성능은 우수하나 실제적인 흡습이 아닌 정전기의 방출원리를 이용한 것으로 땀이나 수분의 흡수능력은 개선되지 않는 단점이 있다. 대한민국 특허 공개 제 96-23312 호에 폴리에스터사에 흡습성을 부여하기 위한 방법으로 H형의 단면을 갖도록 제조하는 방법이 제안되어있으나, 수분의 이동통로가 두곳으로 한정되어 흡습능력이 만족스럽지 못한 단점이 있다.(대한민국 특허공고 제 95 - 719 호)In order to improve the hygroscopicity of the polyester yarn, there is a manufacturing method of having a permanent antistatic performance by copolymerizing or blending chemical components in the polymer stage, but this has excellent antistatic performance, but uses the principle of discharge of static electricity rather than actual hygroscopicity. Absorption capacity of does not improve. Korean Patent Publication No. 96-23312 proposes a method of manufacturing a H-shaped cross section as a method for imparting hygroscopicity to a polyester yarn, but has a disadvantage in that the moisture absorption capacity is not satisfactory because the movement path of water is limited to two places. (Korean Patent Publication Nos. 95-719)
본 발명자들은 사의 표면에 3개이상의 수분이동통로를 부여하면 수분의 이동속도가 빨라져서 흡수능력이 개선되며, 또 흡수속도를 향상시키려면 수분이동통로를 일반적인 3각단면형태와 같은 개방형이 아닌 반폐쇄형으로 하는 것이 좋음을 알게되었다.The present inventors provide three or more water movement passages on the surface of the yarn to improve the absorption speed by increasing the movement speed of the water, and to improve the absorption speed, the water movement passage is not closed, as opposed to the general triangular cross section. I found it good to be my brother.
본 발명은 폴리에스터사의 흡습성을 개선하기 위하여 사의 길이방향으로 3개이상의 반폐쇄형 수분이동통로를 갖는 이형단면 폴리에스터사 및 그 제조방법을 제공하는데 기술적 과제를 두고있다.The present invention has a technical problem to provide a release cross-section polyester yarn having three or more semi-closed water transfer passage in the longitudinal direction of the yarn to improve the hygroscopicity of the polyester yarn and its manufacturing method.
도 1 은 4개의 돌출부를 갖는 이형단면사의 확대평면설명도1 is an enlarged plan view for explaining a cross-section of a shaped section yarn having four protrusions;
도 2 는 4개의 돌출부를 갖는 이형단면사의 다른 확대평면설명도2 is another enlarged plan view for explaining a cross-section of a shaped section yarn having four protrusions;
도 3 은 3개의 돌출부를 갖는 이형단면사제조용 방사구금공의 배열도3 is an arrangement diagram of a spinneret for manufacturing a mold cross section yarn having three protrusions;
도 4 는 4개의 돌출부를 갖는 이형단면사제조용 방사구금공의 배열도4 is an arrangement diagram of a spinneret for manufacturing a cross-section yarn having four protrusions;
도 5 는 5개의 돌출부를 갖는 이형단면사제조용 방사구금공의 배열도5 is an arrangement diagram of a spinneret for manufacturing a sectioned yarn having five protrusions;
이하 본 발명을 예시도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail by way of example.
본 발명은 도 1 과 같이 원사단면의 외접선에 3개이상의 구형돌출부(b)를 가지면서 각각의 구형돌출부의 두께가 접점부의 두께보다 길어서 반폐쇄형의 수분이동통로(a)를 3개이상 갖는 이형단면 폴리에스터사 및 그 제조방법에 관한 것이다.The present invention has three or more spherical protrusions (b) on the tangential line of the yarn cross section as shown in FIG. 1 and each of the spherical protrusions is longer than the thickness of the contact portion and thus has three or more semi-closed water moving passages (a). A cross-sectional polyester yarn and a method for producing the same.
내부원과 외부원의 면적비를 이형도라고 할 때, 본 발명에서 이형도는 10 ∼ 50%가 유지되어야하며, 바람직하게는 20 ∼ 40%이다.When the area ratio of the inner circle and the outer circle is called the degree of release, the degree of release in the present invention should be maintained at 10 to 50%, preferably 20 to 40%.
이형도가 10%미만일 경우는 수분흡습율이 저하되고 이형도가 50%초과할 경우는 수분흡습율은 증가하나 단면형성이 어려워 단면균일성이 저하되고 염색성이 불량해지는 단점이 있다.If the degree of release is less than 10%, the moisture absorption rate is lowered. If the degree of release is more than 50%, the moisture absorption rate is increased, but cross-sectional formation is difficult, resulting in poor cross-sectional uniformity and poor dyeability.
또한 본 발명에서 각각의 돌출부의 두께는 각각의 접점부의 두께보다 커야만 하고, 그 두께비가 다음조건을 만족하여야만 수분의 이동통로를 폐쇄형으로 유지시킬 수 있으며 그 결과 충분한 흡습효과를 발휘할 수 있다.In addition, in the present invention, the thickness of each protrusion must be greater than the thickness of each contact portion, and the thickness ratio must satisfy the following conditions so that the moving passage of moisture can be kept closed, and as a result, it can exert sufficient moisture absorption effect.
이러한 이형도의 조절은 적절한 방사구금을 이용하여 폴리에스터 중합물의 점도, 방사온도, 냉각풍속도 및 권취속도를 조절함으로서 가능하다.Control of this degree of release is possible by controlling the viscosity, spinning temperature, cooling wind speed and winding speed of the polyester polymer using an appropriate spinneret.
다 음next
상기 두께비가 1.0보다 작을 경우에는 충분한 흡습효과가 발휘되지 않으며, 1.3보다 클 경우에는 인접한 돌출부와 융착이 발생되어 방사시 사절을 발생시켜서 방사작업성이 저하되는 단점이 있다.If the thickness ratio is smaller than 1.0, sufficient moisture absorption is not exhibited. If the thickness ratio is larger than 1.3, fusion with adjacent protrusions may occur, causing trimming during spinning.
본 발명에서 돌출부(b)의 갯수는 많을수록 흡습능력이 증가하는 경향이 있으나, 6개이상일 경우 오히려 수분이동통로가 협소하여 흡습능력이 저하될 뿐만아니라 또한 방사사절률이 증가하는 단점이 있으므로 3개 내지 5개의 돌출부를 갖는 것이 바람직하다.In the present invention, the more the number of the protrusions (b) tends to increase the hygroscopic ability, but if more than six, the moisture absorption path is narrow, the hygroscopic capacity is not only lowered, but also has a disadvantage of increasing the radiation trimming rate three It is preferred to have from five to five protrusions.
본 발명에 사용하는 방사구금공은 원형의 구금공을 중심으로 3개의 돌출부(b)를 갖게하기 위해서는 중심부의 구금공보다 작은 3개의 구금공을 120도 각도로 배열하고, 4개의 돌출부를 갖게 하기 위해서는 4개의 구금공을 90도 각도로, 5개의 돌출부를 갖게하기 위해서는 72도의 각도로 5개의 구금공을 배열하였다. 중앙의 구금공의 직경은 0.18mm이며, 돌출부형성을 위한 주변의 구금공은 0.15mm로 하였다. 또한 중앙구금공과 주변구금공간의 간격은 0.08mm의 간격으로 배열하였다.The spinneret used in the present invention has three protrusions (b) centered around a circular hole, and arranges three smaller holes at a 120 degree angle, and has four protrusions smaller than the center hole. In order to have four detention holes at an angle of 90 degrees, and to have five protrusions, five detention holes were arranged at an angle of 72 degrees. The diameter of the central hole was 0.18 mm, and the peripheral hole for forming the protrusion was 0.15 mm. In addition, the interval between the central detention hole and the peripheral detention space was arranged at intervals of 0.08 mm.
실시예 1 ∼ 3 및 비교예 1 ∼ 6Examples 1-3 and Comparative Examples 1-6
적절한 방사구금을 이용 고유점도 0.64의 폴리에스터 중합물을 이용하여 방사속도 1300m/분, 방사온도 295℃, 냉풍속도 0.50m/초, 토출 32.5g/분으로 4개의 돌출부를 갖는 75데니어 36필라멘트사의 미연신사를 제조한후, 이를 연신비 3.0, 예열온도 80℃, 열고정온도 135℃로 연신하되 이형도를 변화시키며 제조하였다.Using a suitable spinneret Using a polyester polymer with an intrinsic viscosity of 0.64, 75 denier 36 filament yarns with four protrusions with spinning speed of 1300m / min, spinning temperature of 295 ℃, cold wind speed of 0.50m / sec, and discharge of 32.5g / min After the gentleman was prepared, it was drawn to draw ratio 3.0, preheating temperature 80 ℃, heat setting temperature 135 ℃, but changing the degree of release.
그 결과를 다른 단면의 사와 비교한 결과는 표 1 과 같았다.The result compared with the yarn of the other cross section was shown in Table 1.
* 비교예 5 의 직사각형단면원사의 이형도는 장축과 단축방향의 길이비임.* The degree of release of the rectangular cross section yarn of Comparative Example 5 is the ratio of the length of the major axis and minor axis.
* 흡습성 측정은 JIS L 1096 6.26.1(Method B)에 의해 측정하였음.* Hygroscopicity measurement was measured according to JIS L 1096 6.26.1 (Method B).
(면직물의 흡습속도는 78mm/분임)(The moisture absorption rate of cotton fabric is 78mm / min)
* 마찰대전압은 KS K 0815 5.28.1(Method B)에 의해 측정하였음.* Friction band voltage was measured by KS K 0815 5.28.1 (Method B).
* 염색균일성은 100개 원사를 분산염료에 고압염색후 관능평가에 의한 염색균일성을 평가한 것으로 ①이 최우수, ⑤가 최불량임.* Dye uniformity is the highest evaluation of dyeing uniformity by sensory evaluation after dyeing 100 yarns in disperse dyes.
실시예 4 ∼ 6 및 비교예 7 ∼ 11Examples 4-6 and Comparative Examples 7-11
적절한 방사구금을 이용 고유점도 0.64의 폴리에스터 중합물을 이용하여 방사속도 1300m/분, 방사온도 295℃, 냉풍속도 0.50m/초, 토출 32.5g/분으로 4개의 돌출단면부를 갖는 75데니어 36필라멘트사의 미연신사를 제조한 후, 이를 연신비 3.0, 예열온도 80℃, 열고정온도 135℃로 연신하되 이형도를 35%로 고정하고, 각각의 돌출부의 두께와 각각의 접점부의 두께와의 비율인 두께비를 변화시켜 제조하였다.Using a suitable spinneret, a 75 denier 36 filament yarn with four protruding sections at a spinning speed of 1300 m / min, spinning temperature of 295 ° C, cold wind speed of 0.50 m / sec, and discharge of 32.5 g / min, using a polyester polymer with an intrinsic viscosity of 0.64 After the undrawn yarn is drawn, it is drawn at a draw ratio of 3.0, a preheating temperature of 80 ° C., and a heat setting temperature of 135 ° C., and the release degree is fixed at 35%, and the thickness ratio which is the ratio of the thickness of each protrusion and the thickness of each contact part is changed. It was prepared by.
그 결과를 다른단면의 사와 비교한 결과는 표 2 와 같았다.The result was compared with the yarn of the other cross section, and the result was shown in Table 2.
* 방사사절률은 원사를 생산함에 있어 제조중간 원사가 사절되는 백분율임* The rate of yarn trimming is the percentage at which yarn is cut during manufacturing
실시예 7 ∼ 9 및 비교예 12Examples 7-9 and Comparative Example 12
적절한 방사구금을 이용 고유점도 0.64의 폴리에스터 중합물을 이용하여 방사속도 1300m/분, 방사온도 295℃, 냉풍속도 0.50m/초, 토출 32.5g/분으로 4개의 돌출단면부를 갖는 75데니어 36필라멘트사의 미연신사를 제조한후, 이를 연신비 3.0, 예열온도 80℃, 열고정온도 135℃로 연신하되 이형도를 35%로 고정하고, 돌출부의 갯수를 변화시키며 제조하였다.Using a suitable spinneret, 75 denier 36-filament After the unstretched yarn was prepared, it was stretched to a draw ratio of 3.0, a preheating temperature of 80 ° C., and a heat setting temperature of 135 ° C., but the release degree was fixed at 35%, and was manufactured by changing the number of protrusions.
그 결과를 다른단면의 사와 비교한 결과는 표 3 과 같았다.The results were compared with those of the other cross sections, and the results were shown in Table 3.
본 발명은 중심부의 원형구금공주위에 원형구금공이 적절하게 조합되어있는 방사구금을 이용하여 반폐쇄성 수분이동로가 수개 형성되어있는 이형단면사를 우수한 방사작업성으로 제조할 수 있다.The present invention can be produced with excellent spinning workability using a spinneret which is a combination of a circular detent ball around the circular detent ball in the center of the semi-closed water transfer path is formed.
본 발명의 이형단면폴리에스터사는 구형돌출부사이에 3 ∼ 5개의 반폐쇄형 수분이동통로가 형성되어 있으므로 흡습성이 우수하다.The release cross-section polyester yarn of the present invention is excellent in hygroscopicity because three to five semi-closed water transfer passages are formed between the spherical protrusions.
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KR20030047192A (en) * | 2001-12-08 | 2003-06-18 | 주식회사 효성 | Modified Cross-section Polytrimethylene Terephthalate Fiber And Method For Producing The Same |
KR100464784B1 (en) * | 2002-11-13 | 2005-01-05 | 주식회사 새 한 | Manufacturing method of polyester fiber which absorb the sweat well and dry rapidly |
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JPS51130321A (en) * | 1975-05-08 | 1976-11-12 | Teijin Ltd | A process for manufacturing crimped polyester filaments |
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JPS51130321A (en) * | 1975-05-08 | 1976-11-12 | Teijin Ltd | A process for manufacturing crimped polyester filaments |
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