JPH0999433A - Method and apparatus for regenerating and granulating fiber chips - Google Patents
Method and apparatus for regenerating and granulating fiber chipsInfo
- Publication number
- JPH0999433A JPH0999433A JP26138795A JP26138795A JPH0999433A JP H0999433 A JPH0999433 A JP H0999433A JP 26138795 A JP26138795 A JP 26138795A JP 26138795 A JP26138795 A JP 26138795A JP H0999433 A JPH0999433 A JP H0999433A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- fiber waste
- granulating
- waste
- chips
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はポリアミドやポリエ
ステル等の熱可塑性合成繊維からなる繊維屑（以下、単
に「繊維屑」と称する）を連続的に供給して再生造粒す
る方法とその装置に関し、特に、５〜２０ｍｍに細かく
切断され、かつ油剤がその表面に付着した長繊維からな
る繊維屑屑を連続的に供給して再生造粒する方法とその
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for continuously feeding and re-granulating fiber scraps (hereinafter simply referred to as "fiber scraps") made of thermoplastic synthetic fibers such as polyamide and polyester. In particular, the present invention relates to a method and an apparatus for regenerating and granulating by continuously supplying fiber scraps consisting of long fibers finely cut into 5 to 20 mm and having an oil agent adhered to the surface thereof.
【０００２】[0002]
【従来の技術】従来より、資源の有効活用及びコスト低
減といった面から、繊維屑を再生造粒することが行われ
ており、この技術に関しては、例えば、特公昭５７―５
４５６７号公報等に提案されている。このような造粒方
法又は装置においては、繊維屑に付着する油剤に対する
配慮が何等なされていないのが現状である。2. Description of the Related Art Conventionally, from the viewpoint of effective utilization of resources and cost reduction, fiber granules have been regenerated and granulated. Regarding this technique, for example, Japanese Patent Publication No. 57-5.
It is proposed in Japanese Patent No. 4567. In such a granulating method or device, the present situation is that no consideration is given to the oil agent attached to the fiber waste.
【０００３】すなわち、合成繊維の製造工程において、
繊維の生産工程の安定化や後工程繊維の取扱性向上を目
的として、繊維に油剤を付与することが一般に行われて
いる。もし、このような油剤付着したままの繊維屑をペ
レットに再生した場合には、再生造粒したペレットの品
質を低下させるという問題を惹起する。このとき繊維屑
の油剤付着量が０．１〜０．２重量％と程度較的少ない
場合には、脱気作用を有する造粒装置を使用することに
よって油分を脱気し、これによって、再生造粒するペレ
ットの品質を確保することも考えられる。That is, in the synthetic fiber manufacturing process,
An oil agent is generally added to the fibers for the purpose of stabilizing the fiber production process and improving the handleability of the post-process fibers. If such fiber waste with the oil agent attached is regenerated into pellets, it causes a problem that the quality of the re-granulated pellets is deteriorated. At this time, when the amount of the oil agent attached to the fiber scraps is as small as 0.1 to 0.2% by weight, the oil content is degassed by using a granulating device having a degassing action, and thereby, the regeneration is performed. It is also possible to secure the quality of pellets to be granulated.
【０００４】しかしながら、本発明者等は、造粒装置に
よる油分脱記には限界が有り、例えば、繊維屑に付着す
る油剤成分が０．３重量％を越えると、油剤成分の除去
は、十分ではなく、どうしても除去できなかった油剤成
分が残留し、これによって、再生造粒したペレットの品
質を低下させるという問題が生じることを究明した。However, the inventors of the present invention have a limit in removing the oil content by the granulating apparatus. For example, when the oil agent component adhering to the fiber waste exceeds 0.3% by weight, the oil agent component is sufficiently removed. However, it was found that the oil agent component that could not be removed by any means remained, which caused a problem that the quality of the re-granulated pellet was deteriorated.
【０００５】特に、合成繊維の延伸工程においては、油
剤付着量が０．５重量％前後になるほど多量に油剤を付
着させることによって生産されており、このような工程
において生じた繊維屑を使用する時は、以下に述べるよ
うな大きな問題を惹起することが解った。すなわち、再
生ペレットを再溶融して紡糸すると、紡糸中に紡糸ノズ
ル出口より糸条とともに、油煙が発生しノズル吹き出し
面に付着した油ミストにより紡糸調子を著しく悪化させ
る元凶が繊維屑に付着した残留油剤であり、たり、また
紡糸できたとしても熱劣化した油剤が繊維表面に付着し
て糸条が変色するという問題が生じる。In particular, in the drawing process of synthetic fibers, it is produced by adhering a large amount of the oil agent so that the amount of the oil agent attached becomes about 0.5% by weight, and the fiber waste generated in such a step is used. It has been found that, at times, it causes major problems as described below. That is, when the regenerated pellets are re-melted and spun, a yarn is generated from the spinning nozzle outlet during spinning, oil smoke is generated, and the oil mist adhering to the nozzle ejection surface significantly deteriorates the spinning condition. However, even if spinning is possible, there is a problem that the heat-deteriorated oil agent adheres to the fiber surface and the yarn is discolored.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、このような
従来の問題に鑑み、品質の優れた再生造粒の生産を長期
間にわたって連続的かつ良好に安定して製造できる繊維
屑の再生造粒方法とその装置を提供することにある。SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, the present invention provides a method for the regenerated production of fiber waste, which enables the production of regenerated granules of excellent quality to be continuously and satisfactorily produced over a long period of time. It is to provide a grain method and an apparatus therefor.
【０００７】[0007]
【課題を解決するための手段】ここに、本発明によれ
ば、熱可塑性合成繊維屑を予め繊維長が５〜２０ｍｍに
なるように切断し、移動するネットコンベアー上に該切
断繊維屑を載置し、該切断繊維屑を連続的に造粒装置に
供給して再生ペレットに造粒する方法において、該切断
繊維屑を水洗し、該繊維屑に付着した油剤の付着量を
０．２重量％以下に減少させた後、該繊維屑の水分率が
５％以下となるまで乾燥して、該繊維屑を造粒装置に投
入することを特徴とする繊維屑の再生造粒方法が提供さ
れる。According to the present invention, thermoplastic synthetic fiber waste is previously cut to a fiber length of 5 to 20 mm, and the cut fiber waste is placed on a moving net conveyor. In this method, the cutting fiber waste is continuously fed to the granulating device to granulate the regenerated pellets, the cutting fiber waste is washed with water, and the amount of the oil agent attached to the fiber waste is 0.2 wt. %, The fiber waste is dried until the water content of the fiber waste is 5% or less, and the fiber waste is fed into a granulating apparatus. It
【０００８】ここで、前記の方法においては、合成繊維
繊維屑の表面に付着した油剤の付着量を０．２重量％以
下に減少させることが好ましい。In the above method, it is preferable to reduce the amount of the oil agent adhered to the surface of the synthetic fiber fiber waste to 0.2% by weight or less.
【０００９】また、熱可塑性合成繊維屑を連続的に供給
して造粒する装置であって、その際、該繊維屑の繊維長
を５〜２０ｍｍに切断する切断装置、該切断後の繊維屑
を洗浄するための水洗装置、水洗後の繊維屑を水分率が
２０％以下まで脱水するための脱水装置、脱水後の繊維
屑を水分率が５％以下となるまで乾燥させる乾燥機、及
び乾燥後の繊維屑をペレットに造粒するための造粒装置
を設けた、ことを特徴とする繊維屑の再生造粒装置が提
供される。A device for continuously feeding and granulating thermoplastic synthetic fiber waste, in which case a cutting device for cutting the fiber length of the fiber waste to 5 to 20 mm, and the fiber waste after cutting Device for washing water, a dehydrator for dehydrating the fiber waste after washing to a water content of 20% or less, a dryer for drying the fiber waste after dehydration to a water content of 5% or less, and drying There is provided a reclaiming and granulating apparatus for fiber scraps, which is provided with a granulating device for granulating subsequent fiber scraps into pellets.
【００１０】[0010]
【発明の実施の形態】ここで、繊維屑の繊維長を５〜２
０ｍｍに切断するためには、回転しない固定刃と、これ
に対して回転する回転刃との間に繊維を投入して切断す
る回転式切断機、繊維を一対の押し切り刃の間に挿入し
てその剪断力で繊維屑を切断する押し切り切断機、そし
て粉砕機等が好適に使用される。このようにして、その
繊維長が５〜２０ｍｍに細かく切断された繊維屑を、
０．５〜２ｍ／分の速度で移動する、ステンレスまたは
プラスチック製の金網で構成されたネットコンベアー上
に連続的に供給する。BEST MODE FOR CARRYING OUT THE INVENTION Here, the fiber length of the fiber waste is 5 to 2
In order to cut to 0 mm, a rotary cutting machine that inserts and cuts a fiber between a fixed blade that does not rotate and a rotating blade that rotates with respect to it, insert the fiber between a pair of push cutting blades. A push-cutting machine that cuts fiber waste by the shearing force, and a crusher are preferably used. In this way, the fiber waste finely cut to a fiber length of 5 to 20 mm is
It is continuously fed onto a net conveyor made of stainless or plastic wire mesh, which moves at a speed of 0.5 to 2 m / min.
【００１１】なお、前記の回転式切断機と破砕機として
は、繊維屑の繊維長が５〜２０ｍｍになるまで切断でき
るものであれば、公知の装置を使用してもよいことは言
うまでもないが、連続的に供給された繊維屑を連続的に
切断できるものが工程を連続化できるため、再生費用を
低減できるため、好ましい。Needless to say, as the rotary cutter and the crusher, known devices may be used as long as they can cut the fiber waste to a fiber length of 5 to 20 mm. Since it is possible to continuously cut the continuously supplied fiber scraps, the process can be made continuous, and the recycling cost can be reduced, which is preferable.
【００１２】このようにして、細かく切断された繊維屑
を連続的に水洗し、かつ水洗された該繊維屑を遠心式脱
水装置に投入して、その水分率が２０重量％以下になる
まで脱水する。さらに、脱水した繊維屑の水分率が５重
量％まで乾燥機によって乾燥した後、造粒装置に投入し
て再生ペレットを造粒する。Thus, the finely cut fiber waste is continuously washed with water, and the washed water waste is put into a centrifugal dehydrator, and dehydrated until the water content becomes 20% by weight or less. To do. Further, the dehydrated fiber waste is dried by a dryer to a water content of 5% by weight and then put into a granulating apparatus to granulate regenerated pellets.
【００１３】なお、前記の水洗装置としては、水シャワ
ーノズルによる水の吹き付け、または水槽に一定時間浸
積させる水洗装置が好適に使用できる。また、繊維屑の
水分率を２０重量％以下とする脱水装置としては、一対
の水絞りローラの間へ繊維屑を通す脱水装置、前記の遠
心脱水装置等を好適に使用できる。更に、脱水した繊維
屑の水分率を０．２重量％にまで低減する乾燥機として
は、熱風循環炉や遠赤外線ヒータ等を好適に使用するこ
とができる。As the above-mentioned water washing device, a water washing device for spraying water with a water shower nozzle or soaking it in a water tank for a certain period of time can be preferably used. Further, as a dehydrator for reducing the water content of the fiber waste to 20% by weight or less, a dehydrator for passing the fiber waste between a pair of water squeezing rollers, the centrifugal dehydrator, etc. can be preferably used. Further, as a dryer for reducing the water content of the dehydrated fiber waste to 0.2% by weight, a hot air circulating furnace, a far infrared heater or the like can be preferably used.
【００１４】そして、最終的に乾燥した繊維屑をペレッ
トに造粒する造粒装置としては、多段ベント式一軸押し
出し機や二軸押し出し機等を使用して、繊維屑を溶融
し、押し出し機から出てくる溶融した繊維屑をペレット
に成形する方法が好適に使用できる。Then, as a granulating device for finally granulating the dried fiber waste into pellets, a multi-stage vent type single-screw extruder, a twin-screw extruder or the like is used to melt the fiber waste and remove it from the extruder. A method of forming the melted fiber waste that comes out into pellets can be suitably used.
【００１５】以上に述べた方法とその装置を用いること
で、次のような作用によって繊維屑から品質の良い再生
ペレットを造粒することができる。By using the above-described method and its apparatus, it is possible to granulate regenerated pellets of good quality from fiber waste by the following actions.
【００１６】すなわち、水洗前に繊維屑の表面に付着し
ている０．３〜０．６％の油剤が、水洗後には、０．２
％以下に低減させることが可能となる。しかしながら、
水洗することにより繊維屑の水分率は、当然のことなが
ら４０〜５０％程度まで上昇するため、水分の除去が必
要となる。That is, 0.3 to 0.6% of the oil agent adhering to the surface of the fiber waste before washing with water is 0.2% after washing with water.
% Or less. However,
By washing with water, the water content of the fiber waste naturally rises to about 40 to 50%, so that it is necessary to remove the water content.
【００１７】もし、水分を十分に除去せずに、造粒装置
へ繊維屑を投入すると、投入時の造粒装置のホッパー内
雰囲気温度が１５０度以上必要であるのに対し、１２０
度前後までしか上がらず造粒が不可能となる。このた
め、投入時の水分率は５％以下にしなければならない。
この故に、水洗した繊維屑を脱水装置及び乾燥機で乾燥
し、水分率を５％以下にすることが必要となるのであ
る。If the fiber waste is charged into the granulating device without sufficiently removing the water content, the atmospheric temperature in the hopper of the granulating device at the time of charging is required to be 150 ° C. or higher.
Granulation is impossible because the temperature rises only up to about 100 degrees. Therefore, the water content at the time of addition must be 5% or less.
For this reason, it is necessary to dry the washed fiber waste with a dehydrator and a dryer so that the water content is 5% or less.
【００１８】[0018]
【実施例】次に、実施例により、本発明を具体的に説明
するが、本実施例においては、繊維屑に付着した油剤量
は、ＪＩＳに規定される溶媒抽出洗浄減量法で測定し
た。EXAMPLES Next, the present invention will be described in detail with reference to Examples. In this Example, the amount of oil agent adhering to the fiber waste was measured by the solvent extraction washing weight loss method specified in JIS.
【００１９】なお、この方法を簡単に説明すると、以下
の通りである。The method will be briefly described as follows.
【００２０】先ず、測定試料である繊維屑（Ｗ g）に付
着した油剤を１００倍量の約０．５％非イオン界面活性
剤水溶液で溶かすために、三角フラスコ中にて、４０℃
−３０分加熱した後、乾燥させ、試料の絶乾質量( Ｗ´
g) を測定し、下記式によって油剤付着量を測定した。First, in order to dissolve the oil agent adhering to the fiber waste (W g) as the measurement sample with 100 times the amount of about 0.5% nonionic surfactant aqueous solution, in an Erlenmeyer flask, 40 ° C.
After heating for -30 minutes, the sample is dried to obtain the absolute dry mass (W '
g) was measured, and the amount of attached oil agent was measured by the following formula.
【００２１】 油剤付着量（％）＝（Ｗ−Ｗ’）／Ｗ×１００ Ｗ ；油剤が付着した試料の質量（ｇ） Ｗ’；洗浄した試料の絶乾質量（ｇ）。Oil agent adhesion amount (%) = (W−W ′) / W × 100 W; mass of sample with oil agent (g) W ′; absolute dry mass (g) of washed sample.
【００２２】以下、本発明を図面に基づいて詳細に説明
する。図１は、本発明の一実施例を示した正面略線図、
図２は本発明の他の実施例を示した正面略線図であっ
て、繊維屑は、図の矢印Ａの方向に進む。Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic front view showing an embodiment of the present invention,
FIG. 2 is a schematic front view showing another embodiment of the present invention, in which fiber waste advances in the direction of arrow A in the figure.
【００２３】該図１において、Ｆは繊維屑、１は回転式
切断機、２は破砕機、３は水洗装置、４及び８並びに１
５はコンベア、５は水シャワーノズル、６及び１０は排
水ダクト、７は遠赤外式乾燥機、９は脱水装置の役割を
果たす一対の水絞りローラ、１１は排水溜め容器、１２
は排風機、１３は乾燥室、１４は造粒装置をそれぞれ示
す。なお、ここでは、繊維屑を示す符号Ｆは、水分を含
んだもの、油剤が付着したもの等を総称して示してい
る。In FIG. 1, F is a fiber waste, 1 is a rotary cutter, 2 is a crusher, 3 is a water washing device, 4 and 8 and 1
5 is a conveyor, 5 is a water shower nozzle, 6 and 10 are drainage ducts, 7 is a far-infrared dryer, 9 is a pair of water squeezing rollers serving as a dehydrator, 11 is a drainage sump container, 12
Is an exhaust fan, 13 is a drying chamber, and 14 is a granulator. In addition, here, the symbol F indicating the fiber waste is a general term for a substance containing water, a substance to which an oil agent is attached, and the like.
【００２４】また、該図２においては、１５及び１８は
コンベア、１６は押し切り式切断機、１７は水洗装置、
１９は水槽、２０は遠心脱水装置、２１は熱風循環式乾
燥炉、２２は造粒装置をそれぞれ示す。Further, in FIG. 2, 15 and 18 are conveyors, 16 is a push-cut type cutting machine, 17 is a water washing device,
Reference numeral 19 is a water tank, 20 is a centrifugal dehydrator, 21 is a hot air circulation type drying furnace, and 22 is a granulator.
【００２５】［実施例１］図１において繊維屑（Ｆ）を
回転式切断機（１）により３０ｍｍ前後に切断し、粉砕
機（２）で５〜２０ｍｍに細かく切断する。この実施例
１では、繊維長を２０ｍｍ以下にするために、回転式切
断機（１）と粉砕機（２）を組み合わせて使用している
が、繊維長を２０ｍｍ以下に切断できるものであれば、
それぞれ単独に用いることができることは、いうまでも
ない。なお、実施例においてて、回転式切断機（１）と
しては、加藤製作所製の切断機（型式Ｋ−５００）を使
用し、粉砕機（２）としては、ソメタニ産業（株）の粉
砕機（型式ＳＫＣ−４５−６２）を使用した。[Example 1] In Fig. 1, the fiber waste (F) is cut to about 30 mm by a rotary cutting machine (1) and finely cut to 5 to 20 mm by a crusher (2). In this Example 1, the rotary cutter (1) and the crusher (2) are used in combination in order to reduce the fiber length to 20 mm or less, but as long as the fiber length can be cut to 20 mm or less ,
It goes without saying that each can be used alone. In the examples, a cutting machine (model K-500) manufactured by Kato Seisakusho Co., Ltd. was used as the rotary cutting machine (1), and a grinding machine (Sometani Sangyo Co., Ltd.) was used as the grinding machine (2). Model SKC-45-62) was used.
【００２６】このようにして、細かく切断された繊維屑
（Ｆ）を、ステンレス製金網で構成されたネットコンベ
アー（４）の上にほぼ均等に載置した。そして、該コン
ベアー（４）を１ｍ／分の速度で移動させながら、水シ
ャワーノズル（５）から繊維屑量対比２０〜３０倍量の
水を吹き付け、これにより繊維屑（Ｆ）を水洗して繊維
屑（Ｆ）の表面に付着した油分を除去する。このとき生
ずる油分を含んだ排水は、排水ダクト（６）で集められ
た後に、排水路（図示せず）へと流出する。In this way, the finely cut fiber waste (F) was placed almost evenly on the net conveyor (4) made of stainless steel wire netting. Then, while moving the conveyor (4) at a speed of 1 m / min, 20 to 30 times the amount of fiber waste is sprayed from the water shower nozzle (5), whereby the fiber waste (F) is washed with water. The oil content adhering to the surface of the fiber waste (F) is removed. The wastewater containing oil generated at this time is collected in the drainage duct (6) and then flows out to a drainage channel (not shown).
【００２７】次に、水洗された繊維屑（Ｆ）は、一対の
水絞りローラ（９）間を通過させられて、繊維屑（Ｆ）
の水分率が繊維重量対比２０重量％以下まで脱水され
る。ここで、該ローラ（９）の下部には、排水ダクト
（１０）が設置されており、これによって集められた排
水は、排水溜め容器（１１）に貯えられる。なお、該排
水溜め容器（１１）内は、排風機（１２）で強制的に吸
引されており、排水が円滑に排水溜め容器（１１）に流
出して貯えられるようになっており、その後、貯えられ
た排水は、排水路（図示せず）へ流出する。Next, the washed fiber waste (F) is passed between a pair of water squeezing rollers (9), and the fiber waste (F).
Is dehydrated to a water content of 20% by weight or less relative to the weight of the fiber. Here, a drainage duct (10) is installed below the roller (9), and the drainage collected by this is stored in a drainage reservoir (11). The drainage container (11) is forcibly sucked by the exhaust fan (12) so that the drainage smoothly flows out into the drainage reservoir container (11) and is stored therein. The stored drainage flows into a drainage channel (not shown).
【００２８】こうして、脱水された繊維屑（Ｆ）は、乾
燥室（１３）を通過するコンベア（８）上に落下し、該
コンベア（８）によって遠赤外線乾燥機（７）へ運ば
れ、乾燥室（１３）中で繊維重量対比５重量％の水分率
となるまで乾燥される。なお、この場合、前述の水絞り
ローラ（９）は、脱水効果のみならず、コンベア（８）
上に載置される繊維屑の厚みを１０ｍｍ前後まで薄くさ
せることによって、繊維屑（Ｆ）の内部にまで遠赤外線
が進入し易くし、乾燥効率を向上させるという効果を奏
する。In this way, the dehydrated fiber waste (F) falls on the conveyor (8) passing through the drying chamber (13), is conveyed to the far infrared dryer (7) by the conveyor (8), and is dried. It is dried in the chamber (13) to a moisture content of 5% by weight relative to the weight of the fiber. In this case, the water squeezing roller (9) described above not only has a dewatering effect but also the conveyor (8).
By reducing the thickness of the fiber waste placed on the top to around 10 mm, far infrared rays easily enter the inside of the fiber waste (F), and the drying efficiency is improved.
【００２９】そして、最終的にコンベアー（１５）によ
り搬送された繊維屑（Ｆ）は、造粒装置（１４）へ投入
され、再溶融後、所定形状に成形されペレット化され
る。なお、本実施例においては、造粒装置（１４）は、
少なくとも一般に市販されている多段ベント式一軸押し
出し機及びペレタイズ機を含んだものから構成される
が、図１においては、ペレタイズ機は、図示していな
い。Then, the fiber waste (F) finally conveyed by the conveyor (15) is put into the granulating device (14), remelted, and then molded into a predetermined shape and pelletized. In this example, the granulating device (14)
Although it is composed of at least a commercially available multi-stage vent type single-screw extruder and a pelletizing machine, the pelletizing machine is not shown in FIG.
【００３０】ここで、念のために多段ベント式一軸押し
出し機とペレタイズ機とからなる造粒装置（１４）を簡
単に説明すると、押し出し機で再溶融され、線状に吐出
された溶融繊維屑は、冷却された後、ペレタイズ機で所
定の寸法にカットされ、ペレット化される。Here, a granulating device (14) consisting of a multi-vent type uniaxial extruder and a pelletizing machine will be briefly described as a precaution, and a molten fiber scrap remelted by the extruder and discharged linearly. After being cooled, it is cut into pellets by a pelletizing machine and pelletized.
【００３１】［実施例２］図２において、繊維屑（Ｆ）
を俗称が「ギロチン式カッター」と称される押し切り式
切断機（１６）により２０ｍｍ前後に細かく切断し、プ
ラスチック製金網のネットコンベアー（１８）に載置
し、水洗装置（１７）の水槽（１９）に投入した。水槽
（１９）に投入した繊維屑（Ｆ）は、長時間浸積するほ
ど油分除去率は上昇するが、生産効率を考慮すると、最
低１分以上浸積させた後、１ｍ／分の速度で移動する前
記のネットコンベアー（１８）に載置され、次工程へ進
む。[Embodiment 2] In FIG. 2, fiber waste (F)
Is cut into about 20 mm finely by a push-cutting cutting machine (16) commonly known as "guillotine cutter", placed on a net conveyor (18) made of plastic wire mesh, and placed in a water tank (19) of a washing device (17). ). The fiber debris (F) thrown into the water tank (19) has a higher oil removal rate as it is immersed for a long time, but considering the production efficiency, after being immersed for at least 1 minute or more, at a speed of 1 m / min. It is placed on the moving net conveyor (18) and proceeds to the next step.
【００３２】そして、連続式の遠心脱水装置（２０）に
よって、繊維屑（Ｆ）の水分率が繊維重量対比１５重量
％以下まで脱水される。この脱水された繊維屑（Ｆ）
は、次いで、熱風循環式乾燥機（２１）で繊維重量対比
５重量％の水分率まで乾燥される。そして、実施例１と
同様にして、再生造粒装置によって、繊維屑（Ｆ）は、
ペレット化される。Then, the continuous centrifugal dehydrator (20) dehydrates the moisture content of the fiber waste (F) to 15% by weight or less based on the weight of the fiber. This dehydrated fiber waste (F)
Is then dried in a hot air circulation dryer (21) to a moisture content of 5% by weight relative to the weight of the fiber. Then, in the same manner as in Example 1, the fiber waste (F) was converted into
Pelletized.
【００３３】[0033]
【発明の効果】以上に説明の如く、本発明によれば、多
くの油剤が付着した繊維屑を使用しても、造粒装置への
投入前に繊維屑に付着した油剤量を低減しているため
に、従来のように繊維屑に起因する再生ペレットの品質
劣化が極めて少なく、品質の優れた再生ペレットが長期
間にわたって連続的に安定して得られるという極めて顕
著な効果を奏する。As described above, according to the present invention, even when a large amount of fiber scraps adhered with an oil agent is used, it is possible to reduce the amount of the oil agent adhered to the fiber scraps before being charged into the granulating apparatus. Therefore, the quality deterioration of the regenerated pellets due to the fiber waste as in the past is extremely small, and regenerated pellets of excellent quality can be obtained continuously and stably over a long period of time.
【図１】本発明の実施例１を示す正面略線図である。FIG. 1 is a schematic front view showing a first embodiment of the present invention.
【図２】本発明の実施例２を示す正面略線図である。FIG. 2 is a schematic front view showing a second embodiment of the present invention.
１ 回転式切断機 ２ 粉砕機 ３ 水洗装置 ５ 水シャワーノズル ７ 遠赤外線乾燥機 ９ 水絞りローラ １４ 造粒装置 １６ 押し切り式切断機 １９ 水槽 ２０ 遠心脱水装置 ２１ 熱風循環式乾燥機 ２２ 造粒装置 1 Rotary Cutting Machine 2 Grinding Machine 3 Water Washing Device 5 Water Shower Nozzle 7 Far Infrared Dryer 9 Water Squeezing Roller 14 Granulating Device 16 Push-cutting Cutting Machine 19 Water Tank 20 Centrifugal Dewatering Device 21 Hot Air Circulating Dryer 22 Granulating Device
Claims (2)
２０ｍｍになるように切断し、移動するネットコンベア
ー上に該切断繊維屑を載置し、該切断繊維屑を連続的に
造粒装置に供給して再生ペレットに造粒する方法におい
て、 該切断繊維屑を水洗し、該繊維屑に付着した油剤の付着
量を０．２重量％以下に減少させた後、該繊維屑の水分
率が５％以下となるまで乾燥して、該繊維屑を造粒装置
に投入することを特徴とする繊維屑の再生造粒方法。1. A thermoplastic synthetic fiber waste having a fiber length of 5 to 5 is previously prepared.
In a method of cutting to 20 mm, placing the cut fiber waste on a moving net conveyor, and continuously supplying the cut fiber waste to a granulating device to granulate regenerated pellets, the cut fiber The waste is washed with water to reduce the amount of the oil agent attached to the fiber waste to 0.2% by weight or less, and then dried until the moisture content of the fiber waste is 5% or less to produce the fiber waste. A method for re-granulating fiber waste, which comprises charging into a granulator.
造粒する装置であって、その際、該繊維屑の繊維長を５
〜２０ｍｍに切断する切断装置、該切断後の繊維屑を洗
浄するための水洗装置、水洗後の繊維屑を水分率が２０
％以下まで脱水するための脱水装置、脱水後の繊維屑を
水分率が５％以下となるまで乾燥させる乾燥機、及び乾
燥後の繊維屑をペレットに造粒するための造粒装置をこ
の順に設けた、ことを特徴とする繊維屑の再生造粒装
置。2. A device for continuously feeding and granulating thermoplastic synthetic fiber waste, wherein the fiber length of the fiber waste is 5
A cutting device for cutting to ˜20 mm, a water washing device for washing the fiber waste after cutting, and a water content of the fiber waste after washing is 20
% Dehydration device for dehydration, a dryer for drying the dehydrated fiber waste until the moisture content becomes 5% or less, and a granulating device for granulating the dried fiber waste into pellets in this order. A reclaimed and granulated device for fiber waste, which is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26138795A JP3210220B2 (en) | 1995-10-09 | 1995-10-09 | How to recycle fiber waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26138795A JP3210220B2 (en) | 1995-10-09 | 1995-10-09 | How to recycle fiber waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0999433A true JPH0999433A (en) | 1997-04-15 |
| JP3210220B2 JP3210220B2 (en) | 2001-09-17 |
Family
ID=17361153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26138795A Expired - Fee Related JP3210220B2 (en) | 1995-10-09 | 1995-10-09 | How to recycle fiber waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3210220B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002233401A (en) * | 2001-02-09 | 2002-08-20 | Achilles Corp | Recycled and injection molded boot |
| EP1227178A3 (en) * | 2001-01-24 | 2003-02-12 | Bayer Faser GmbH | Process and apparatus for separating oil from chopped sized elastan fibres |
| CN104129009A (en) * | 2013-05-01 | 2014-11-05 | 英威达科技公司 | Polyamide casting for producing uniform pellets |
| KR20160060853A (en) * | 2014-11-20 | 2016-05-31 | 주식회사 알인텍 | Carbon-fiber Waste Reprocessing Method |
| CN110656392A (en) * | 2018-06-29 | 2020-01-07 | 展颂股份有限公司 | Recycled nylon fiber and manufacturing method thereof |
| WO2022196407A1 (en) * | 2021-03-16 | 2022-09-22 | 東レ株式会社 | Nylon-6 fiber, and material-recycled polycaproamide resin pellets and method for production thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI687561B (en) * | 2018-06-29 | 2020-03-11 | 展頌股份有限公司 | Recycling nylon fiber and method for manufacturing the same |
-
1995
- 1995-10-09 JP JP26138795A patent/JP3210220B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1227178A3 (en) * | 2001-01-24 | 2003-02-12 | Bayer Faser GmbH | Process and apparatus for separating oil from chopped sized elastan fibres |
| JP2002233401A (en) * | 2001-02-09 | 2002-08-20 | Achilles Corp | Recycled and injection molded boot |
| CN104129009A (en) * | 2013-05-01 | 2014-11-05 | 英威达科技公司 | Polyamide casting for producing uniform pellets |
| KR20160060853A (en) * | 2014-11-20 | 2016-05-31 | 주식회사 알인텍 | Carbon-fiber Waste Reprocessing Method |
| CN110656392A (en) * | 2018-06-29 | 2020-01-07 | 展颂股份有限公司 | Recycled nylon fiber and manufacturing method thereof |
| WO2022196407A1 (en) * | 2021-03-16 | 2022-09-22 | 東レ株式会社 | Nylon-6 fiber, and material-recycled polycaproamide resin pellets and method for production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3210220B2 (en) | 2001-09-17 |
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