JPH06200412A - Polyester yarn having specific section and its production - Google Patents
Polyester yarn having specific section and its productionInfo
- Publication number
- JPH06200412A JPH06200412A JP34939192A JP34939192A JPH06200412A JP H06200412 A JPH06200412 A JP H06200412A JP 34939192 A JP34939192 A JP 34939192A JP 34939192 A JP34939192 A JP 34939192A JP H06200412 A JPH06200412 A JP H06200412A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- section
- polyester
- spinning
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920000728 polyester Polymers 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 98
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000004927 fusion Effects 0.000 claims abstract description 6
- 238000002074 melt spinning Methods 0.000 claims abstract description 5
- 208000012886 Vertigo Diseases 0.000 claims description 62
- 238000009987 spinning Methods 0.000 claims description 62
- 229920000642 polymer Polymers 0.000 claims description 8
- 239000000470 constituent Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000012209 synthetic fiber Substances 0.000 abstract description 5
- 229920002994 synthetic fiber Polymers 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 3
- 230000001747 exhibiting effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 19
- 238000005259 measurement Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000004043 dyeing Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- -1 alkyl sulfonic acid Chemical compound 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012681 fiber drawing Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000007526 fusion splicing Methods 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
(57)【要約】
【目的】 ポリエステルの溶融紡糸工程において、紡糸
口金直下で繊度の異なる３本以上の繊維群を融着させる
ことにより、繊維断面形状及び繊維太さを極めて短周期
に変化せしめることによって、良好な均染性、優れた開
繊性と吸水性とナチュラルなふくらみ感を発現する合成
繊維、及びその製造方法を提供する。
【構成】 エチレンテレフタレートが構成成分の８５％
以上であるポリエステルフィラメント繊維において、中
心部を形成する円形断面繊維の周囲に、その中心部繊維
と繊度を異にする少なくとも２本以上の円形断面繊維が
融着して１本の繊維を形成している融合繊推であつて、
融着する繊維の融着位置及びサイズが、フィラメント
間、および、糸長方向で変化しており、中心部を構成す
る繊維の直径Ｒとその周囲に融着している繊維の直径ｒ
が次式（１）を満足し、かつ、該繊維群の繊度が±８％
の範囲で変動している特殊断面ポリエステル繊維。
１．５≦Ｒ／ｒ≦３ ・・・（１）
(57) [Abstract] [Purpose] In the melt spinning process of polyester, by fusing three or more fiber groups with different fineness directly under the spinneret, the fiber cross-sectional shape and fiber thickness can be changed in an extremely short cycle. Accordingly, a synthetic fiber exhibiting good levelness, excellent fiber-opening property, water absorbency, and natural bulging feeling, and a method for producing the same are provided. [Composition] Ethylene terephthalate is 85% of the composition
In the polyester filament fiber as described above, at least two or more circular cross-section fibers having different fineness from the central fiber are fused around the circular cross-section fiber forming the central part to form one fiber. Is the fusion inference,
The fusing position and size of the fibers to be fused vary between the filaments and in the yarn length direction, and the diameter R of the fibers constituting the central portion and the diameter r of the fibers fused to the periphery thereof
Satisfies the following expression (1), and the fineness of the fiber group is ± 8%
Special cross-section polyester fiber that varies in the range of. 1.5 ≦ R / r ≦ 3 (1)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、均染性に優れドライで
ナチュラルなふくらみ感と優れた吸水性を有し、今まで
のポリエステル繊維には見られない良好な風合が付与さ
れ、かつ、その優れた開繊性により立毛素材としても良
好な嵩高性が付与されたポリエステル繊維、及びその製
造方法に関する。さらに詳しくは、ポリエステルの溶融
紡糸工程において、紡糸口金直下で繊度の異なる３本以
上の繊維群を融着させることにより、繊維断面形状及び
繊維太さを極めて短周期に変化せしめることによって、
良好な均染性、優れた開繊性と吸水性とナチュラルなふ
くらみ感を発現する合成繊維、及びその製造方法に関す
る。BACKGROUND OF THE INVENTION The present invention has a uniform leveling property, has a dry and natural swelling feeling and an excellent water absorption property, and is imparted with a good texture not found in conventional polyester fibers. The present invention relates to a polyester fiber having good bulkiness as a napped material due to its excellent openability, and a method for producing the same. More specifically, in the polyester melt spinning step, by fusing three or more fiber groups having different fineness directly below the spinneret, the fiber cross-sectional shape and the fiber thickness can be changed in an extremely short cycle,
The present invention relates to a synthetic fiber that exhibits good levelness, excellent fiber-opening property, water absorbency, and natural bulge, and a method for producing the same.
【０００２】[0002]
【従来の技術】天然繊維指向への合成繊推の改良は古く
から試みられており、特にポリエステルフィラメント繊
維においては、絹を目標に断面形状、繊度、アルカリ減
量技術、異収縮混繊技術等さまざまな技術改良を経て、
近年では多様な高度技術の複合化により、ついに絹を越
える独特な風合が開発されている。しかし一方では、技
術の高度化・複合化に伴う品質の不安定化、製造コスト
の上昇が問題となつている。2. Description of the Related Art It has been attempted for a long time to improve synthetic fiber orientation toward natural fibers. Particularly, in polyester filament fiber, various techniques such as cross-sectional shape, fineness, alkali reduction technique, different shrinkage mixed fiber technique are aimed at silk. After undergoing various technical improvements,
In recent years, a unique texture that surpasses silk has been developed by combining various advanced technologies. On the other hand, however, the instability of quality and the increase of manufacturing cost due to the sophistication and integration of technology are becoming problems.
【０００３】また、天然繊維は、従来の合成繊維と比べ
て、その形態及び物性が微妙に変化しており、この変化
が天然繊維独特のナチュラルな風合を生み出している。
また、溶融紡糸時に定量ポンプにパルス信号を送り、紡
糸口金から吐出するポリマー量を微小変化させて繊度斑
を引き起こしたり、引取ローラーに突起状物を付設し紡
糸ロ金下部でのドラフト斑を発生させて繊度斑を作る等
の試みがなされた。しかしこれら機械的手段による方法
では、斑の発生に周期性があり、かつその斑の周期も比
較的長く、天然繊維に見られるような斑とはほど遠いも
のである。また、不均一延伸による太細繊維化により微
小な異繊度・異収縮化を生み出す技術も一般的である。
しかしこのような不均一延伸による斑の発現において
は、不均一延伸に起因する部分的染色差により均一な染
品位の布帛は得られない。また、天然繊維に似た微妙な
変化・変動を合成繊維で表現すべく、特開昭５９−１０
０７１７号公報や特開平１−２６６２２０号公報に見ら
れるように複合紡糸技術により、繊維の断面形状・太さ
・収縮挙動等に変化を与える試みがなされてきた。これ
らの手段により目的とする微少変化糸は得られるが、こ
のような複合紡糸技術においては、その微小変化をコン
トロールすることは困難であるため、品質管理上問題が
ある。また、２個以上の口径の違う紡糸孔から１本のフ
ィラメントを紡糸する方法が特公昭４３−２２３３９
号、特開昭５７−２１０００９号公報で開示されてい
る。この方法は、２つ以上の突起部を有し、且つ、その
突起部が長さ方向に連続的、且つ、周期的に変動したフ
ィラメントを得る方法である。この方法は、断面形状、
繊度を微妙に変化させる方法として優れているが、これ
ら方法では、繊度の変動を制御することが困難であり、
均染性に劣るという問題点を有している。Further, the shape and physical properties of natural fibers are subtly changed as compared with conventional synthetic fibers, and this change produces a natural texture peculiar to natural fibers.
In addition, a pulse signal is sent to the metering pump during melt spinning to finely change the amount of polymer discharged from the spinneret to cause fineness unevenness, or a protrusion is attached to the take-up roller to generate draft unevenness at the bottom of the spinning roller. Attempts were made to make fineness unevenness. However, in these methods by mechanical means, the generation of spots is periodic, and the period of the spots is relatively long, which is far from the spots found in natural fibers. In addition, a technique for producing a minute different fineness and different shrinkage by making a thin fiber by uneven stretching is also common.
However, in such uneven development due to uneven stretching, a cloth having a uniform dyeing quality cannot be obtained due to a partial difference in dyeing due to the uneven stretching. In addition, in order to express a subtle change / fluctuation similar to natural fiber with synthetic fiber, Japanese Patent Laid-Open No. 59-10.
As seen in Japanese Patent Application No. 0717 and Japanese Patent Application Laid-Open No. 1-266220, attempts have been made to change the cross-sectional shape, thickness, shrinkage behavior and the like of fibers by the composite spinning technology. Although the target micro-variable yarn can be obtained by these means, it is difficult to control the micro-variation in such a composite spinning technique, so that there is a problem in quality control. Also, a method of spinning one filament from two or more spinning holes having different diameters is disclosed in Japanese Examined Patent Publication No. 43-22339.
And JP-A-57-210009. This method is a method of obtaining a filament having two or more protrusions, and the protrusions varying continuously and periodically in the length direction. This method is
Although it is excellent as a method of subtly changing the fineness, it is difficult to control the fluctuation of the fineness with these methods,
It has the problem of poor levelness.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、かかる従来
技術の間題点を克服し、マルチフィラメントを構成する
各繊維間及び繊維長方向に極めて短周期のランダムな変
化・斑を有し、それでいて均染性に優れる、良好な開繊
性と吸水性とナチュラルなふくらみ感を有するポリエス
テルマルチフィラメント及びその製造方法を提供するも
のである。DISCLOSURE OF THE INVENTION The present invention overcomes the problems of the prior art and has extremely short-period random changes / spots between each fiber constituting the multifilament and in the fiber length direction, Further, the present invention provides a polyester multifilament having excellent leveling property, good fiber-opening property, water absorbency, and natural bulging feeling, and a method for producing the same.
【０００５】[0005]
【課題を解決するための手段】すなわち、本発明の第１
の要旨は、エチレンテレフタレートが構成成分の８５％
以上であるポリエステルフィラメント繊維において、中
心部を形成する円形断面繊維の周囲に、その中心部繊維
と繊度を異にする少なくとも２本以上の円形断面繊維が
融着して１本の繊維を形成している融着繊推であつて、
融着する繊維の融着位置及びサイズが、フィラメント
間、および、糸長方向で変化しており、中心部を構成す
る繊維の直径Ｒとその周囲に融着している繊維の直径ｒ
が次式（１）を満足し、かつ、該繊維群の繊度が±８％
の範囲で変動していることを特徴とする特殊断面ポリエ
ステル繊維である。 １．５≦Ｒ／ｒ≦３ ・・・（１）That is, the first aspect of the present invention
The main point is that ethylene terephthalate is 85% of the constituents.
In the polyester filament fiber as described above, at least two or more circular cross-section fibers having different fineness from the central fiber are fused around the circular cross-section fiber forming the central part to form one fiber. In the fusion splicing,
The fusing position and size of the fibers to be fused vary between the filaments and in the yarn length direction, and the diameter R of the fibers constituting the central portion and the diameter r of the fibers fused to the periphery thereof
Satisfies the following expression (1), and the fineness of the fiber group is ± 8%
It is a polyester fiber with a special cross section characterized by varying in the range of. 1.5 ≦ R / r ≦ 3 (1)
【０００６】また、本発明の第２の要旨は、円形状の主
紡糸孔およびその周囲に円形状の副紡糸孔を２個以上穿
設してなる紡糸孔群を１組の紡糸孔単位とし、下記式
（２）、（３）、（４）、（５）を同時に満足する条件
で、エチレンテレフタレートが構成成分の８５％以上で
あるポリエステルを溶融紡糸することを特徴とする特殊
断面ポリエステル繊維の製造方法。 ０．１５ｍｍ≧｛Ｌ−（ｒl＋ｒ2）｝≧０．０５ｍｍ ・・・（２） ０．２５ｍｍ≧ｒl＞ｒ2≧０．１０ｍｍ ・・・（３） １．６０≧ｒl／ｒ2≧１．１５ ・・・（４） Ｑ／Ｓ≧１０ ・・・（５） ここで、ｒl；主紡糸孔の半径、ｒ2；副紡糸孔の半径、 Ｌ；両紡糸孔の中心間距離、Ｑ;吐出されるポリマー量
（ｇ／分） Ｓ；全紡糸孔の吐出面積（ｍｍ2）The second gist of the present invention is that a spinning hole group formed by forming two or more circular main spinning holes and two or more circular sub-spinning holes around it is defined as one spinning hole unit. A polyester fiber having a special cross-section, which is obtained by melt-spinning a polyester having ethylene terephthalate in an amount of 85% or more of the constituent components under the condition that the following formulas (2), (3), (4) and (5) are simultaneously satisfied. Manufacturing method. 0.15 mm ≧ {L− (r 1 + r 2 )} ≧ 0.05 mm (2) 0.25 mm ≧ r 1 > r 2 ≧ 0.10 mm (3) 1.60 ≧ r 1 / r 2 ≧ 1.15 (4) Q / S ≧ 10 (5) where r 1 is the radius of the main spinning hole, r 2 is the radius of the secondary spinning hole, L is the radius of both spinning holes. Distance between centers, Q: Amount of polymer discharged (g / min) S: Discharge area of all spinning holes (mm 2 )
【０００７】このように得られたポリエステル特殊断面
繊維の未延伸糸を使用して、延伸工程で延伸と同時に高
温熱処理すると低収縮性を示す特殊断面ポリエステル繊
維が得られ、特殊断面ポリエステル繊維の未延伸糸を延
伸工程で熱処理を施さないで延伸のみ行うと高収縮性を
示す特殊断面ポリエステル繊維が得られる。さらに、延
伸工程で延伸と同時に高温熱処理して得られる該低収縮
糸と延伸のみで熱処理を施さない該高収縮糸とを混繊し
てなる異収縮混繊糸は、本発明の目的とする均染性に優
れる、良好な開繊性と吸水性とナチュラルなふくらみ感
を有するポリエステル混繊糸となる。When the undrawn yarn of the polyester special cross-section fiber thus obtained is used, a special cross-section polyester fiber exhibiting low shrinkage is obtained by subjecting it to high temperature heat treatment simultaneously with drawing in the drawing step. When only the drawn yarn is drawn in the drawing process without heat treatment, a polyester fiber having a special cross section having high shrinkability can be obtained. Further, a heterogeneous shrinkage mixed yarn obtained by mixing the low shrinkage yarn obtained by heat treatment at a high temperature simultaneously with the drawing in the drawing step and the high shrinkage yarn not subjected to the heat treatment only by drawing is an object of the present invention. A polyester mixed yarn having excellent leveling property, good fiber-opening property, water absorbency, and natural bulging feeling.
【０００８】本発明において、融着する繊維の融着位置
及びサイズが、フィラメント間、および、糸長方向で変
化した不規則な断面形状の集合体であることは、ナチュ
ラルなふくらみ感と優れた開繊性を発現させるために必
須である。また、中心部を構成する繊維の直径Ｒとその
周囲に融着している繊維の直径ｒが前述の式（１）を満
足し、かつ、該繊維群の繊度が±８％の範囲で変動して
いることは、良好な毛細管現象による吸水性、および、
均染性の発現に必須である。In the present invention, the fact that the fusion position and size of the fibers to be fused is an aggregate having an irregular cross-sectional shape that varies between filaments and in the yarn length direction is excellent in a natural bulging feeling. It is essential for developing openness. Further, the diameter R of the fiber forming the central portion and the diameter r of the fiber fused around the central portion satisfy the above-mentioned formula (1), and the fineness of the fiber group fluctuates within a range of ± 8%. What is doing is good water absorption by capillary action, and
It is essential for the expression of level dyeing.
【０００９】溶融されたポリエステルポリマーは、実質
的に円形である主紡糸孔とその周囲、同心円周上に配列
された２個以上の望ましくは３個以下の実質的に円形で
ある副紡糸孔からなる紡糸孔群を１組の紡糸孔単位とし
た紡糸口金を用いて、前述の式（２）、（３）、（４）
を満足する条件で紡糸されるが、この際、全紡糸孔から
吐出されるポリマー量Ｑ（ｇ／分）が全紡糸孔の吐出面
積Ｓ（ｍｍ2）に対し、式（５）の関係となる時、紡糸
ノズル直下で主紡糸孔から紡出されるフィラメントに副
紡糸孔から紡出されるフィラメントが部分的に融着す
る。この際、副紡糸孔から紡出される２本以上のフィラ
メントが主紡糸孔から紡出されるフィラメントに融着す
るタイミングに不一致が発生し、該紡糸群から得られる
融着繊維は、紡糸ノズル直下で極めて短周期の微振動を
引き起こす。この微振動は、一旦発生するとポリマーの
吐出を停止するまで継続される。このように複数個の紡
糸孔群から紡出後、融着して得られる繊維の断面形状
は、主紡糸孔から紡出され、中心部を形成する円形断面
繊維の周囲に、その中心部繊維と繊度を異にする副紡糸
孔から紡出された少なくとも２本以上の円形断面繊維が
融着した特殊断面形状となる。The molten polyester polymer is composed of a main spinning hole which is substantially circular and two or more, preferably three or less, sub-spinning holes which are substantially circular and which are arranged on the periphery and concentric circles. Using the spinneret in which the spinning hole group consisting of one spinning hole unit is used, the above formulas (2), (3) and (4) are used.
In this case, the polymer amount Q (g / min) discharged from all the spinning holes is related to the discharge area S (mm 2 ) of all the spinning holes by the relationship of the formula (5). At that time, the filament spun from the sub-spinning hole is partially fused to the filament spun from the main spinning hole directly below the spinning nozzle. At this time, a mismatch occurs in the timing of fusion of two or more filaments spun from the sub-spinning holes to the filaments spun from the main spinning hole, and the fused fibers obtained from the spinning group are directly below the spinning nozzle. Causes a very short period of micro-vibration. Once generated, this slight vibration continues until the discharge of the polymer is stopped. As described above, the cross-sectional shape of the fiber obtained by fusing after being spun from a plurality of spinning hole groups is the same as that of the central fiber around the circular cross-sectional fiber that is spun from the main spinning hole and forms the central part. And a special cross-sectional shape in which at least two or more circular cross-section fibers spun out from the sub-spinning holes having different fineness are fused.
【００１０】紡糸孔群から紡出された溶融ポリマーは冷
却固化する前に上記のような微振動を受けるため、副紡
糸孔から紡出された融着部分は、その融着位置及び断面
サイズがフィラメント間、および、糸長方向で変化す
る。また、このような方法により、中心部を構成する繊
維の直径Ｒとその周囲に融着している繊維の直径ｒが前
述の式（１）を満足し、該繊維群の繊度が±８％の範囲
で変動する繊維を得ることが可能となる。さらに、該繊
維群を構成する各フィラメントは微小潜在捲縮を有して
おり、不規則な断面形状の集合体であることとあいまつ
てナチュラルなふくらみ感と優れた開繊性を示す。ま
た、繊維集合体として形成される空隙部分は毛細管現象
による吸水性を生み出す。Since the molten polymer spun out from the spinning hole group is subjected to the above-described slight vibration before being cooled and solidified, the fused portion spun out from the sub-spinning hole has a fusing position and a sectional size. It varies between filaments and in the yarn length direction. Further, by such a method, the diameter R of the fiber forming the central portion and the diameter r of the fiber fused to the periphery thereof satisfy the above formula (1), and the fineness of the fiber group is ± 8%. It is possible to obtain fibers that fluctuate within the range. Further, each filament constituting the fiber group has a minute latent crimp, and shows a natural swelling feeling and an excellent openability by being an aggregate having an irregular cross-sectional shape. In addition, the void portion formed as a fiber assembly produces water absorption by a capillary phenomenon.
【００１１】式（２）において、Ｌ−（ｒl＋ｒ2）が
０．１５ｍｍを越える場合は、紡糸孔群から紡出された
フィラメント群が融着せず目的とする繊維が得られない
ばかりか紡糸安定性が悪化する。一方、Ｌ−（ｒl＋
ｒ2）が０．０５ｍｍ未満の場合は、溶融ポリマーが紡
糸孔から吐出されると同時に融着が起こるため紡糸ロ金
直下での微振動は発生せず目的とする繊維は得られな
い。そして、主紡糸孔の半径ｒl、副紡糸孔の半径ｒ2が
同時に式（３）、（４）を満足しない場合は、得られる
特殊断面繊推の断面形状において、中心部を構成する繊
維の直径Ｒとその周囲に融着している繊維の直径ｒの比
（Ｒ／ｒ）が式（１）の範囲を外れ、紡糸ロ金直下での
微振動が小さく、得られる繊維群の繊維断面の形状そし
て繊度の変化率はいずれも小さく目的とする繊維は得ら
れない。In the formula (2), when L- (r l + r 2 ) exceeds 0.15 mm, the filament group spun from the spinning hole group is not fused and the desired fiber cannot be obtained. Spinning stability deteriorates. On the other hand, L- (r l +
When r 2 ) is less than 0.05 mm, the molten polymer is discharged from the spinning holes and, at the same time, fusion occurs, so that microvibration does not occur immediately below the spinning rod and the target fiber cannot be obtained. When the radius r 1 of the main spinning hole and the radius r 2 of the sub spinning hole do not simultaneously satisfy the formulas (3) and (4), the fiber forming the central portion in the obtained cross-sectional shape of the special cross-section fiber drawing The ratio (R / r) between the diameter R of the fiber and the diameter r of the fiber fused around it is outside the range of the formula (1), the microvibration is small directly under the spinning roller, and the fiber of the obtained fiber group is obtained. The change rate of the cross-sectional shape and fineness is small, and the target fiber cannot be obtained.
【００１２】本発明でいうエチレンテレフタレートが構
成成分の８５％以上であるポリエステルフィラメント繊
維とは、テレフタル酸又はそのエステル形成性誘導体を
主たる酸成分とし、エチレングリコールを主たるアルコ
ール成分とするポリエステルである。また、これらポリ
エステルに従来公知の酸成分あるいはアルコール成分を
共重合したものであつてもよい。酸成分の具体例として
は、イソフタル酸、アジピン酸、セバシン酸、５−ナト
リウムスルホイソフタル酸等が挙げられる。また、アル
コール成分の具体例としては、プロピレングリコール、
ビスフエノールＡのビスグリコールエーテル等が挙げら
れる。さらに、ポリアルキレングリコールやアルキルス
ルホン酸金属塩や無機微粒子等をブレンド添加したもの
であつてもよい。The polyester filament fiber in which ethylene terephthalate in the present invention is 85% or more of the constituent components is a polyester having terephthalic acid or its ester-forming derivative as a main acid component and ethylene glycol as a main alcohol component. Further, these polyesters may be copolymerized with a conventionally known acid component or alcohol component. Specific examples of the acid component include isophthalic acid, adipic acid, sebacic acid, 5-sodium sulfoisophthalic acid and the like. Further, specific examples of the alcohol component include propylene glycol,
Examples thereof include bisglycol ether of bisphenol A. Further, it may be a mixture of polyalkylene glycol, metal salt of alkyl sulfonic acid, inorganic fine particles and the like.
【００１３】[0013]
【実施例】以下、実施例により、本発明をさらに具体的
に説明する。実施例および比較例中における各特性値は
下記の方法により測定したものである。EXAMPLES The present invention will be described in more detail below with reference to examples. The characteristic values in the examples and comparative examples are measured by the following methods.
【００１４】［極限粘度］試料をフェノール／テトラク
ロルエタン（５０／５０重量比）混合溶媒に溶解し、ウ
ベローデ粘度計により２５℃にて測定した値である。[Intrinsic viscosity] It is a value measured by dissolving a sample in a phenol / tetrachloroethane (50/50 weight ratio) mixed solvent and measuring it with an Ubbelohde viscometer at 25 ° C.
【００１５】［糸物性］ 〈強度・伸度〉；島津製オートグラフ「ＳＤ−１００Ｃ
特形」 試長＝２０ｃｍ、引張連度＝２０ｃｍ／ｍｉｎ、初荷重
＝０．０３ｇ／ｄ[Physical Properties] <Strength / Elongation>; Shimadzu Autograph "SD-100C"
Special shape ”Test length = 20 cm, tensile continuity = 20 cm / min, initial load = 0.03 g / d
【００１６】〈ＢＷＳ〉；カセ法 試長＝１ｍ×１０回巻ｃｍ、測定荷重＝０．０３ｇ／
ｄ、１００℃×３０分沸水処理した後、収縮率を測定。<BWS>; Kase method Test length = 1 m × 10 windings cm, measuring load = 0.03 g /
d, Shrinkage was measured after boiling water treatment at 100 ° C. for 30 minutes.
【００１７】〈糸繊度斑〉；計測器工業製イブネステス
ター「ＫＥＴ一８０Ｃ」 （未延伸糸）糸速＝８ｍ／ｍｉｎ、モード；Ｎｏｒｍａ
ｌ、測定時間＝１分、フルスケール＝１２．５％ （延伸糸）糸速＝１５ｍ／ｍｉｎ、モード；１／２ Ｉ
ｎｅｒｔ、測定時間＝１分、フルスケール＝１２．５％<Irregularity of yarn fineness>; Evenestaster “KET-180C” manufactured by Keiki Kogyo Co., Ltd. (undrawn yarn) yarn speed = 8 m / min, mode; Norma
1, measurement time = 1 minute, full scale = 12.5% (drawn yarn) yarn speed = 15 m / min, mode; 1/2 I
nert, measurement time = 1 minute, full scale = 12.5%
【００１８】＜実施例１〜３及び比較例１〜４＞極限粘
度［η］が０．６５のポリエチレンテレフタレートを使
用し、紡糸温度２９０℃で、図１に示すような紡糸孔径
の異なる３個の紡糸孔からなる紡糸孔群が４８組穿設さ
れた紡糸ロ金より紡出し、紡出糸に対して直交する２０
℃に調節された冷却風により冷却固化した後、引き続き
油剤を付与し、巻取連度１，８００ｍ／分で巻き取っ
た。この未延伸糸を８０〜９０℃で予熱し、引き続いて
延伸後、残留伸度が２５〜３０％となるょぅな延伸倍率
で延伸しヽ延伸と同時に１４０℃に如熱された熱板で熱
セツトして所定の繊度の延伸糸とした。各実施例、比較
例に使用した紡糸ロ金の仕様及び吐出量等、紡糸条件の
詳細と得られた未延伸糸、延伸糸の糸物性等を表１に示
した。また、実施例１で得られた未延伸糸の構成フィラ
メントの一部についてその繊維断面形状、及び未延伸糸
の糸繊度斑の測定チャートをそれぞれ図２、図３に示
す。さらにこの未延伸糸を延伸して得られた延伸糸の糸
繊度斑の測定チャートを図４に示す。図２、図３に示す
ように、本実施例で得られた特殊断面繊維は、主紡糸孔
から紡出された中心部構成繊維に対して副紡糸孔から紡
出された融着部構成繊維が、各フィラメント間で異なつ
た位置に異なつたサイズで融着しており、未延伸糸は１
０〜１５Ｃｍの短周期の繊度斑と約数ｍの大きな周期斑
を有している。そしてその変動率が±５％であるにもか
かわらず染筋等の異常は見られず染品位は良好であつ
た。そして、この繊度斑に起因する構造斑により各フィ
ラメント間、及び糸長方向にに収霜斑が発生、繊維束は
微小捲縮を有している。<Examples 1 to 3 and Comparative Examples 1 to 4> Three polyethylene terephthalates having an intrinsic viscosity [η] of 0.65 were used at a spinning temperature of 290 ° C. and having different spinning hole diameters as shown in FIG. The spinning hole group consisting of 48 spinning holes is spun from a spinning rod having 48 sets and is orthogonal to the spun yarn.
After cooling and solidifying with cooling air adjusted to ° C, an oil agent was continuously applied, and the film was wound at a winding speed of 1,800 m / min. This unstretched yarn is preheated at 80 to 90 ° C., subsequently stretched, and then stretched at a stretch ratio such that the residual elongation becomes 25 to 30%. Heat setting was performed to obtain a drawn yarn having a predetermined fineness. Table 1 shows the details of the spinning conditions such as the specifications and discharge amount of the spinning rods used in each Example and Comparative Example, and the physical properties of the obtained undrawn yarn and drawn yarn. 2 and 3 show the fiber cross-sectional shape of a part of the constituent filaments of the undrawn yarn obtained in Example 1 and the measurement chart of the yarn fineness unevenness of the undrawn yarn. Further, FIG. 4 shows a measurement chart of yarn fineness unevenness of the drawn yarn obtained by drawing the undrawn yarn. As shown in FIG. 2 and FIG. 3, the special cross-section fiber obtained in this example is a fusion-section constituent fiber spun from a sub-spinning hole to a central part constituent fiber spun from a main spinning hole. However, the filaments are fused to different positions at different positions, and the undrawn yarn is 1
It has short cycle fineness unevenness of 0 to 15 Cm and large periodic unevenness of about several meters. Despite the fluctuation rate of ± 5%, no abnormalities such as streaks were observed and the dyeing quality was good. Then, due to the structural unevenness caused by the fineness unevenness, frost unevenness occurs between the filaments and in the yarn length direction, and the fiber bundle has a minute crimp.
【００１９】[0019]
【表１】 [Table 1]
【００２０】＜実施例４＞実施例１で得られた未延伸糸
を延伸する際、２本の未延伸糸を同時に延伸し、１本は
実施例１と全く同じ延伸条件とし、他の１本は熱板に接
触させることなく延伸し、これら２本の糸を引取ローラ
ー上で引き揃えながら巻き取った。得られた延伸糸は異
収縮混繊糸となつており、未延伸糸の特殊断面形状に起
因する微小捲縮に合わせて、原糸２成分の収縮率差に基
づくバルク発現により、より効果的な嵩高性と開繊性が
得られた。<Example 4> When the undrawn yarn obtained in Example 1 is drawn, two undrawn yarns are drawn at the same time, one under the same drawing conditions as in Example 1, and the other 1 The book was drawn without contacting the hot plate, and these two yarns were wound while being aligned on a take-up roller. The obtained drawn yarn is a heterogeneous shrinkage mixed yarn, and it is more effective due to the bulk expression based on the difference in shrinkage ratio of the two components of the original yarn in accordance with the minute crimp due to the special cross-sectional shape of the undrawn yarn. The bulkiness and openability were obtained.
【００２１】[0021]
【発明の効果】上述の如く、本発明によれば、複合紡糸
技術、複合加工技術等、高コストプロセスによることな
く、均染性に優れドライでナチユラルなふくらみ感と優
れた吸水性を有し、今までのポリエステル繊維には見ら
れない良好な風合が付与され、かつ、その優れた開繊性
により立毛素材としても良好な嵩高性が付与されたポリ
エステル繊維を得ることができる。As described above, according to the present invention, it is possible to obtain a dry and natural swelling feeling which is excellent in leveling property and an excellent water absorption property without using a high cost process such as a composite spinning technique and a composite processing technique. It is possible to obtain a polyester fiber having a good texture not found in conventional polyester fibers and having a good bulkiness as a napped material due to its excellent openability.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明に係わる特殊断面繊維の製造に使用され
た紡糸口金の紡糸孔群の横断面図FIG. 1 is a transverse cross-sectional view of a spinning hole group of a spinneret used for producing a special cross-section fiber according to the present invention.
【図２】本発明で得られた未延伸糸の断面図FIG. 2 is a sectional view of an undrawn yarn obtained by the present invention.
【図３】未延仲糸の糸斑測定チャートの一例である。FIG. 3 is an example of a yarn spot measurement chart of unrolled intermediate yarn.
【図４】延伸糸の糸斑測定チャートの一例である。FIG. 4 is an example of a yarn unevenness measurement chart of a drawn yarn.
【符号の説明】 Ｌ：主紡糸孔と副紡糸孔との中心間距離 ｒl：主紡糸孔の半径 ｒ2：副紡糸孔の半径 Ｒ：中心部を構成する繊維の直径 ｒ：中心繊維の周囲に融着している繊維の直径[Explanation of Codes] L: Center-to-center distance between main spinning hole and sub-spinning hole r l : radius of main spinning hole r 2 : radius of sub-spinning hole R: diameter of fiber constituting central part r: center fiber Diameter of fibers fused around
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｄ０１Ｄ 5/20 7199−3Ｂ 5/253 7199−3Ｂ Ｄ０１Ｆ 6/84 ３０５ Ｃ 7199−3Ｂ 8/14 Ｂ 7199−3Ｂ Ｄ０２Ｇ 1/18 3/04 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location D01D 5/20 7199-3B 5/253 7199-3B D01F 6/84 305 C 7199-3B 8/14 B 7199-3B D02G 1/18 3/04
Claims (5)
５％以上であるポリエステルフィラメント繊維におい
て、中心部を形成する円形断面繊維の周囲に、その中心
部繊維と繊度を異にする少なくとも２本以上の円形断面
繊維が融着して１本の繊維を形成している融着繊推であ
つて、融着する繊維の融着位置及びサイズが、フィラメ
ント間、および、糸長方向で変化しており、中心部を構
成する繊維の直径Ｒとその周囲に融着している繊維の直
径ｒが次式（１）を満足し、かつ、該繊維群の繊度が±
８％の範囲で変動していることを特徴とする特殊断面ポ
リエステル繊維。 １．５≦Ｒ／ｒ≦３ ・・・（１）1. Ethylene terephthalate is a component 8
In the polyester filament fiber of 5% or more, at least two circular cross-section fibers having different fineness from the central fiber are fused around the circular cross-section fiber forming the central part to form one fiber. In forming the fusion fiber, the fusion position and size of the fibers to be fused vary between the filaments and in the yarn length direction, and the diameter R of the fibers forming the central portion and the periphery thereof. The diameter r of the fused fiber satisfies the following expression (1), and the fineness of the fiber group is ±
A polyester fiber with a special cross section characterized by varying in the range of 8%. 1.5 ≦ R / r ≦ 3 (1)
状の副紡糸孔を２個以上穿設してなる紡糸孔群を１組の
紡糸孔単位とし、下記式（２）、（３）、（４）、
（５）を同時に満足する条件で、エチレンテレフタレー
トが構成成分の８５％以上であるポリエステルを溶融紡
糸することを特徴とする特殊断面ポリエステル繊維の製
造方法。 ０．１５ｍｍ≧｛Ｌ−（ｒl＋ｒ2）｝≧０．０５ｍｍ ・・・（２） ０．２５ｍｍ≧ｒl＞ｒ2≧０．１０ｍｍ ・・・（３） １．６０≧ｒl／ｒ2≧１．１５ ・・・（４） Ｑ／Ｓ≧１０ ・・・（５） ここで、ｒl；主紡糸孔の半径、ｒ2；副紡糸孔の半径、 Ｌ；両紡糸孔の中心間距離、Ｑ;吐出されるポリマー量
（ｇ／分） Ｓ；全紡糸孔の吐出面積（ｍｍ2）2. A spinning hole group formed by forming two or more circular main spinning holes and two or more circular sub-spinning holes around the circular main spinning hole is defined as one spinning hole unit, and the following formulas (2) and (3) are used. ), (4),
A method for producing a polyester fiber having a special cross-section, which comprises melt-spinning a polyester in which ethylene terephthalate is 85% or more of the constituents under the condition (5) is satisfied at the same time. 0.15 mm ≧ {L− (r 1 + r 2 )} ≧ 0.05 mm (2) 0.25 mm ≧ r 1 > r 2 ≧ 0.10 mm (3) 1.60 ≧ r 1 / r 2 ≧ 1.15 (4) Q / S ≧ 10 (5) where r 1 is the radius of the main spinning hole, r 2 is the radius of the secondary spinning hole, L is the radius of both spinning holes. Distance between centers, Q: Amount of polymer discharged (g / min) S: Discharge area of all spinning holes (mm 2 )
維の未延伸糸を延伸工程で延伸と同時に高温熱処理して
得られる低収縮性を示す特殊断面ポリエステル繊維。3. A special cross-section polyester fiber having a low shrinkage property, which is obtained by subjecting an undrawn yarn of the special cross-section polyester fiber according to claim 1 to high temperature heat treatment simultaneously with drawing in a drawing step.
維の未延伸糸を延伸工程で熱処理を施さないで延伸のみ
行った高収縮性を示す特殊断面ポリエステル繊維。4. A polyester polyester fiber having a special cross section having a high shrinkage property, which is obtained by only drawing the undrawn yarn of the polyester fiber having the special cross section according to claim 1 without heat treatment in the drawing step.
ポリエステル繊維と請求項４記載の高収縮性を示す特殊
断面ポリエステル繊維を混繊したことを特徴とする異収
縮混繊特殊断面ポリエステル繊維5. A different-shrinkage mixed-fiber special cross-section polyester comprising a special cross-section polyester fiber having a low shrinkage property according to claim 3 and a special cross-section polyester fiber having a high shrinkage property according to claim 4. fiber
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34939192A JPH06200412A (en) | 1992-12-28 | 1992-12-28 | Polyester yarn having specific section and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34939192A JPH06200412A (en) | 1992-12-28 | 1992-12-28 | Polyester yarn having specific section and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06200412A true JPH06200412A (en) | 1994-07-19 |
Family
ID=18403439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34939192A Pending JPH06200412A (en) | 1992-12-28 | 1992-12-28 | Polyester yarn having specific section and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06200412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996023479A3 (en) * | 1995-02-03 | 1997-03-06 | Beiersdorf Ag | Anti-adhesive active principles |
-
1992
- 1992-12-28 JP JP34939192A patent/JPH06200412A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996023479A3 (en) * | 1995-02-03 | 1997-03-06 | Beiersdorf Ag | Anti-adhesive active principles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3118011A (en) | Process for preparing helically crimped composite filaments | |
| JPH01298210A (en) | Modified hollow yarn of polyester and production thereof | |
| JPH06200412A (en) | Polyester yarn having specific section and its production | |
| DE4320593A1 (en) | Multifilament yarn made of polyethylene naphthalate and process for its manufacture | |
| JP2002061030A (en) | Method for producing polyester composite fiber | |
| JP2823231B2 (en) | Polyester multifilament and method for producing the same | |
| JP3892799B2 (en) | Manufacturing method of woven and knitted fabric | |
| JP2820966B2 (en) | Composite fiber and method for producing the same | |
| JP3802471B2 (en) | Polyester composite multifilament fiber, production method thereof, and woven / knitted fabric thereof | |
| KR100429949B1 (en) | Manufacturing Method of Polyethylene Terephthalate Fiber for Dip Cord and PET Fiber Manufactured by the Same | |
| JP3061271B2 (en) | Polyester thick composite fiber yarn and method for producing the same | |
| JPS5847485B2 (en) | Tokushi Yukasada Kashino Seizouhouhou | |
| JPH06287810A (en) | Production of polybutylene terephthalate fiber | |
| JPS5876521A (en) | Preparation of polyester yarn for hard twisting | |
| JP3029682B2 (en) | Composite fiber aggregate having excellent retardation crimp | |
| JPS5936800A (en) | Polyester fiber for wet papermaking | |
| JPS59204972A (en) | Production of polyester fiber | |
| KR880001701B1 (en) | Polyester's yarn making method | |
| JP2000265324A (en) | Latent crimpable thick and thin yarn and method for producing the same | |
| JPH0343370B2 (en) | ||
| JPH11152635A (en) | Special polyester spun yarn and its production | |
| JPH10237715A (en) | Composite split filament and aggregate composed thereof | |
| JPH07292523A (en) | Polyester hollow fiber having good shrinkage and gloss | |
| JP2774857B2 (en) | Different shrinkage multifilament mixed yarn and method for producing the same | |
| JP2911060B2 (en) | Composite fiber aggregate |