JPH09273020A - Spinneret for melt spinning of combined filament yarn - Google Patents
Spinneret for melt spinning of combined filament yarnInfo
- Publication number
- JPH09273020A JPH09273020A JP8393996A JP8393996A JPH09273020A JP H09273020 A JPH09273020 A JP H09273020A JP 8393996 A JP8393996 A JP 8393996A JP 8393996 A JP8393996 A JP 8393996A JP H09273020 A JPH09273020 A JP H09273020A
- Authority
- JP
- Japan
- Prior art keywords
- spinneret
- orifice
- spinning
- melt
- orifices
- 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
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、混繊用溶融紡糸口
金に関する。更に詳しくは、従来にない優れた風合を有
する２種類以上の糸条からなる混繊糸を紡糸、混繊で容
易に得ることができる混繊用溶融紡糸口金に関する。TECHNICAL FIELD The present invention relates to a melt spinning spinneret for mixed fibers. More specifically, the present invention relates to a melt-spinning spinneret for mixed fibers, by which a mixed-fiber yarn composed of two or more kinds of yarns having an unprecedented excellent feeling can be easily obtained by spinning.
【０００２】[0002]
【従来の技術】最近、溶融紡糸において、従来の単一吐
出孔から製糸するのではなく、異なった形状の吐出孔を
用いて、得られる糸条群内に芯・鞘構造を形成する混繊
糸とし、それぞれに風合の役割分担をもたらすことで従
来の繊維にはないいわゆる新合繊と称する多数の合成繊
維が提案されている。2. Description of the Related Art Recently, in melt-spinning, a yarn having a different shape is used to form a core / sheath structure in the obtained yarn group, instead of using a conventional single discharge hole. A large number of synthetic fibers, so-called new synthetic fibers, which have not been found in conventional fibers, have been proposed as yarns, by providing each of them with a role of feeling.
【０００３】混繊糸を製造する方法としては、従来、芯
と鞘を構成する繊維を別々の口金にて製糸し混繊する方
法があるが、最近合理化の観点および芯・鞘の絡み具合
向上の面より、一つの紡糸口金に予め芯部と鞘部用に別
々の紡糸孔を穿孔し一気に紡糸混繊する方法が開発され
つつある。Conventionally, as a method for producing a mixed fiber, there is a method in which fibers constituting a core and a sheath are produced by separate spinners and mixed, but recently, from the viewpoint of rationalization and improvement of the entanglement of the core and the sheath. From this point of view, a method is being developed in which a single spinneret is preliminarily provided with separate spinning holes for the core portion and the sheath portion, and the fibers are spun and mixed at a stretch.
【０００４】この方法においては、一つの口金内に２種
類以上の吐出孔形状を予め穿設するため、口金設計およ
び口金コストが高くなるという欠陥があった。In this method, since two or more kinds of discharge hole shapes are preliminarily formed in one mouthpiece, there is a defect that the die design and the mouthpiece cost increase.
【０００５】また得られる繊維が必ずしも目的に合致し
たものでない場合、高価な口金の制作を繰り返すことに
なったり、また所望の混繊糸が得られないという欠点が
あった。Further, when the obtained fiber does not always meet the purpose, there are drawbacks that an expensive die is repeatedly produced and a desired mixed yarn cannot be obtained.
【０００６】また同一ポリマーから３種類以上の紡糸混
繊については、益々口金設計および口金コストが高くな
ることにより、事実上ほとんど実施されていない状況で
ある。[0006] In addition, about three or more kinds of spinning mixed fibers made of the same polymer, the spinneret design and spinner cost are becoming higher and higher, so that practically almost no practice has been carried out.
【０００７】従来より紡糸口金として、紡糸口金本体の
口金プレートに多数のオレフィスを装着させるものが色
々提案されているが、これらはオリフィスを多数有する
口金の作成時に制作コストの低減や、精度の確保という
課題がほとんどである（例えば特開昭５１―７２１１号
公報、特開昭５１―９９１０７号公報、特開昭５８―４
１９０７号公報）。Conventionally, various spinnerets have been proposed in which a large number of olefins are attached to a spinneret plate of a spinneret main body, but these reduce production cost and ensure accuracy when manufacturing a spinneret having many orifices. (For example, JP-A-51-7211, JP-A-51-99107, and JP-A-58-4).
1907).
【０００８】しかしながら、これらは同一口金内に２種
類以上の形状の異なるオリフィスを装着し、混繊用の口
金として使用するものではない。However, these do not use two or more kinds of orifices having different shapes in the same mouthpiece and are not used as a mouthpiece for mixing fibers.
【０００９】一方、混繊用紡糸口金としては、例えば実
開昭４７―１１５２９号公報には、導入孔の形状または
寸法が異なることで糸条間にデニール差を生じさせるこ
とを特徴とした口金の記載があるが、紡出孔径が同じで
あるため、この程度では目的の風合が得られない。On the other hand, as a spinneret for mixing fibers, for example, in Japanese Utility Model Laid-Open No. 47-11529, a spinneret is characterized in that a difference in the shape or size of the introduction hole causes a denier difference between yarns. However, since the spinning hole diameters are the same, the desired texture cannot be obtained at this level.
【００１０】また溶融紡糸混繊方法として、例えば特開
昭５２―６３４１８号公報には、単糸繊度もしくは断面
形状が異なる吐出孔を同一口金面に孔群別に分割配置し
た口金を用いることで、形状の異なる紡出糸に冷却風に
よる物性差を付与した混繊糸が提案されている。Further, as a melt-spinning and mixing method, for example, Japanese Unexamined Patent Publication No. 52-63418 discloses the use of a spinneret in which discharge holes having different single yarn fineness or cross-sectional shape are divided and arranged on the same spinneret surface according to hole groups. There has been proposed a mixed fiber in which spun yarns having different shapes have different physical properties due to cooling air.
【００１１】更に特開昭５９―９４６１３号公報には、
単繊維デニールが異なる２群以上のフィラメント糸とし
て紡出するにあたり、それぞれの群を分散および／また
は同心円状の配置とする製造方法が提案されている。Further, Japanese Patent Laid-Open No. 59-94613 discloses that
When spinning as filament yarns of two or more groups with different single fiber denier, a production method has been proposed in which each group is dispersed and / or arranged concentrically.
【００１２】しかしながら、いずれの方法も紡糸孔の配
列を群単位としてとらえており、新合繊とはいえ天然繊
維に近い風合またはより一層の合繊繊維の特徴を発揮す
るところまでいたっていないのが混繊糸の実態である。However, in all the methods, the arrangement of the spinning holes is regarded as a group unit, and even though it is a new synthetic fiber, it has not yet reached the point where it has a texture close to that of natural fiber or the characteristics of synthetic fiber. This is the actual situation of mixed yarn.
【００１３】[0013]
【発明が解決しようとする課題】本発明は上記の欠点を
解消し、天然繊維に近い風合またはより一層合繊繊維の
特徴を発揮できる混繊糸を合理的・効率的に製造するこ
とが可能な混繊用溶融紡糸口金を提供するものである。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned drawbacks, and enables rational and efficient production of a mixed fiber that can exhibit a texture close to that of natural fibers or the characteristics of synthetic fibers. The present invention provides a melt spinning spinneret for mixed fibers.
【００１４】[0014]
【課題を解決するための手段】本発明者は上記の課題を
解決するために鋭意検討の結果、本発明に到達した。The present inventors have arrived at the present invention as a result of extensive studies to solve the above problems.
【００１５】すなわち本発明は、溶融した熱可塑性重合
体を吐出するための、同心円状に多列に吐出孔を有する
紡糸口金（１）において、該紡糸口金本体の口金プレー
ト（２）の各列には、外径が同一で、着脱可能なオリフ
ィス（３，３ａ，３ｂ……）が締付部（４）を介して、
列内および／または列間に等間隔で嵌合、配列されてお
り、かつ該オリフィスは少くとも２種類の異なった吐出
孔形状を呈していることを特徴とする混繊用溶融紡糸口
金である。That is, according to the present invention, in a spinneret (1) for discharging a molten thermoplastic polymer, which has concentrically arranged discharge holes in multiple rows, each row of the spinneret plate (2) of the spinneret main body. , Which have the same outer diameter and are equipped with removable orifices (3, 3a, 3b ...) Through the tightening part (4),
A melt-spinning spinneret for mixed fibers, characterized in that the orifices are fitted and arranged at equal intervals in and / or between rows, and the orifices have at least two different discharge hole shapes. .
【００１６】[0016]
【発明の実施の形態】本発明を図面によって以下詳細に
説明する。The present invention will be described in detail below with reference to the drawings.
【００１７】図１は、本発明の混繊用溶融紡糸口金の部
分拡大断面図である。ここで、１は紡糸口金、２は紡糸
口金本体の口金プレート、３，３ａ，３ｂ，３ｃ，３ｄ
は着脱可能なオリフィス、４はオリフィスの締付部、
５，５′はオリフィスおよび締付部に設けられたネジ
山、６はオリフィス上部の凹凸部、７はオリフィスの吐
出孔である。FIG. 1 is a partially enlarged sectional view of the melt-spinning spinneret for mixed fibers of the present invention. Here, 1 is a spinneret, 2 is a spinneret plate of the spinneret main body, 3, 3a, 3b, 3c, 3d
Is a removable orifice, 4 is a tightening part of the orifice,
Reference numerals 5 and 5'indicate screw threads provided on the orifice and the tightening portion, 6 indicates an uneven portion on the upper portion of the orifice, and 7 indicates a discharge hole of the orifice.
【００１８】本発明の紡糸口金は、同じ円状に多列に配
列された複数個の吐出孔を有するものであり、該吐出孔
は着脱可能な個々のオリフィスに穿孔されている。ここ
で核オリフィスは、紡糸口金本体の口金プレートに、そ
の両側の締付部によって等間隔で嵌合配列されている。
この嵌合は、オリフィス外周部に設けられたネジ山が、
対応する締付部の内周部に設けられたネジ山にねじこま
れ、オリフィスの内周部上部の凹凸部に密着・固定され
てなされている。この際、オリフィスと締付部の間の漏
れを防止する方法については任意であるが、特開昭５１
―７２１１号公報記載の方法もその一つである。The spinneret of the present invention has a plurality of ejection holes arranged in the same circle in multiple rows, and the ejection holes are formed in the detachable individual orifices. Here, the nuclear orifices are fitted and arranged in the spinneret plate of the spinneret main body at equal intervals by the fastening portions on both sides thereof.
In this fitting, the screw thread provided on the outer periphery of the orifice
It is screwed into a screw thread provided on the inner peripheral portion of the corresponding tightening portion, and is brought into close contact with and fixed to the uneven portion on the upper inner peripheral portion of the orifice. At this time, the method for preventing leakage between the orifice and the tightening portion is arbitrary, but it is not disclosed in Japanese Patent Laid-Open No.
The method described in Japanese Patent No. 7211 is one of them.
【００１９】またオリフィスおよび締付部の外径は同一
であり、各オリフィスの紡糸口金プレートへの配列が列
内および／または列間で任意に着脱によって選択可能で
ある。但し、オリフィスの吐出形状は少くとも２種類が
混在することが、目的とする風合を得るのに必要であ
る。Further, the orifices and the tightening portions have the same outer diameter, and the arrangement of the orifices on the spinneret plate can be arbitrarily selected within the row and / or between the rows by detaching. However, it is necessary that at least two kinds of ejection shapes of the orifices are mixed to obtain the desired texture.
【００２０】吐出孔形状の一例として、丸穴でドラフト
差をつけるため吐出孔径が異なるもの、光沢差をつける
ための吐出孔形状が異なるもの、冷却差をつけるための
オリフィス孔長が異なるものなど所望の形状をオリフィ
スの外径を同一にすることで任意に選択できる。As an example of the shape of the discharge hole, the diameter of the discharge hole is different because a draft difference is formed with a round hole, the shape of the discharge hole is different for giving a gloss difference, the length of the orifice hole is different for making a cooling difference, etc. A desired shape can be arbitrarily selected by making the outer diameters of the orifices the same.
【００２１】[0021]
【発明の効果】本発明の混繊用溶融紡糸口金によれば、
任意の少くとも２個以上異なる形状の吐出孔を有するオ
リフィスの複数個を、紡糸口金プレートに、目的に応じ
て任意に列内および／または列間で着脱配列することが
できるので、２種類以上の異なる糸条が渾然、一体とな
り従来にない風合の混繊糸が容易に得られると共に、所
望の風合を容易に得ることが可能であるので極めて効率
的である。According to the melt spinning spinneret for mixed fibers of the present invention,
Since at least two or more arbitrary orifices having differently shaped discharge holes can be arbitrarily attached to and detached from the spinneret plate within and / or between the rows according to the purpose, two or more types are provided. This is extremely efficient because the yarns of different types are naturally integrated into one another, and a mixed fiber having a texture that is not available in the past can be easily obtained and a desired texture can be easily obtained.
【図１】本発明の混繊用溶融紡糸口金の部分拡大断面図
である。FIG. 1 is a partially enlarged sectional view of a melt-spinning spinneret for mixed fibers of the present invention.
１ 紡糸口金 ２ 口金プレート ３ オリフィス ３ａ 〃 ３ｂ 〃 ３ｃ 〃 ３ｄ 〃 ４ 締付部 ５ オリフィスのネジ山 ５′ 締付部のネジ山 ６ 凹凸部 ７ 吐出孔 1 Spinneret 2 Spindle Plate 3 Orifice 3a 〃 3b 〃 3c 〃 3d 〃 4 Tightening part 5 Screw thread of orifice 5'Screw of tightening part 6 Uneven part 7 Discharge hole
Claims (2)
の、同心円状に多列に吐出孔を有する紡糸口金（１）に
おいて、該紡糸口金本体の口金プレート（２）の各列に
は、外径が同一で、着脱可能なオリフィス（３，３ａ，
３ｂ……）が締付部（４）を介して、列内および／また
は列間に等間隔で嵌合、配列されており、かつ該オリフ
ィスは少くとも２種類の異なった吐出孔形状を呈してい
ることを特徴とする混繊用溶融紡糸口金。1. A spinneret (1) for discharging a melted thermoplastic polymer, which has concentric multi-row discharge holes, wherein each row of the spinneret plate (2) of the spinneret main body comprises: Detachable orifices (3, 3a, with the same outer diameter)
3b ...) are fitted and arranged in the rows and / or between the rows at equal intervals through the tightening portions (4), and the orifices have at least two different discharge hole shapes. A melt spinning spinneret for mixed fibers.
（５）が、対応する締付部の内周部に設けられたネジ山
（５′）で嵌合されて、オリフィスの内周部上部の凹凸
部（６）に密着固定されている請求項１記載の混繊用溶
融紡糸口金。2. A screw thread (5) provided on the outer peripheral portion of the orifice is fitted with a screw thread (5 ') provided on the inner peripheral portion of the corresponding tightening portion, so that the inner peripheral portion of the orifice is upper. The melt-spinning spinneret for mixed fibers according to claim 1, wherein the melt-spinning spinneret is closely fixed to the uneven portion (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8393996A JPH09273020A (en) | 1996-04-05 | 1996-04-05 | Spinneret for melt spinning of combined filament yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8393996A JPH09273020A (en) | 1996-04-05 | 1996-04-05 | Spinneret for melt spinning of combined filament yarn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09273020A true JPH09273020A (en) | 1997-10-21 |
Family
ID=13816564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8393996A Pending JPH09273020A (en) | 1996-04-05 | 1996-04-05 | Spinneret for melt spinning of combined filament yarn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09273020A (en) |
-
1996
- 1996-04-05 JP JP8393996A patent/JPH09273020A/en active Pending
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