JPS59100757A - Removal of liquid from fibrous sheet - Google Patents
Removal of liquid from fibrous sheetInfo
- Publication number
- JPS59100757A JPS59100757A JP57209594A JP20959482A JPS59100757A JP S59100757 A JPS59100757 A JP S59100757A JP 57209594 A JP57209594 A JP 57209594A JP 20959482 A JP20959482 A JP 20959482A JP S59100757 A JPS59100757 A JP S59100757A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- fibrous sheet
- rotating drum
- solvent
- drum
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
- D06B3/20—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric
- D06B3/201—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric the treating material being forced through the textile material
- D06B3/203—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric the treating material being forced through the textile material by suction, e.g. by means of perforated drums
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/02—Rollers
- D06B23/025—Perforated rollers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は繊維質シートから液体を置換除去する方法に関
する。よシ詳しくは、高分子物質の溶液または分散液を
含浸させた繊維質シートを高分子物質の非溶剤であるが
該溶媒または分散媒とは相溶性を肩する液体で処理して
繊維質シートから該溶媒または分散媒を除去する方法に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for displacing liquids from a fibrous sheet. More specifically, a fibrous sheet impregnated with a solution or dispersion of a polymeric substance is treated with a liquid that is a non-solvent for the polymeric substance but is compatible with the solvent or dispersion medium to produce a fibrous sheet. The present invention relates to a method for removing the solvent or dispersion medium from the solvent.
従来より、溶媒中に軸架した回転ドラムの表面に織布を
接触させ織布を通じて回転ドラム内に溶媒を吸液するこ
とにより、織布に含まれている糊剤や染料等を溶解除去
する方法が公知である。たとえば特公昭３０−８５３９
号公報には、織布を洗浄または染色するための装置とし
てＦ記のような原理を用いた装置が提案されている。し
かしながら、このような装置は、織布等の通液性の極め
て良い繊維質シートに対しては使用できるが、通液性の
悪い、すなわち内部組織が緻密でかつ厚地の繊維質シー
トに対しては使用できないという欠点を有している。な
ぜならば、通液性の悪い繊維質シートを回転ドラム方式
で処理すると、液体は専ら抵抗を受けない個所、すなわ
ち繊維質シートで覆われていないドラム狭面から浸入し
て繊維質シート内を液体がほとんど通過しないこととな
り、繊維質ソートは洗浄作用をほとんど受けないためで
ある。Traditionally, woven fabric is brought into contact with the surface of a rotating drum suspended in a solvent, and the solvent is absorbed into the rotating drum through the woven fabric, thereby dissolving and removing the glue, dye, etc. contained in the woven fabric. Methods are known. For example, Tokuko Sho 30-8539
The publication proposes an apparatus using the principle described in F as an apparatus for washing or dyeing woven fabric. However, although such a device can be used for fibrous sheets with extremely good liquid permeability, such as woven fabrics, it cannot be used for fibrous sheets with poor liquid permeability, that is, thick fibrous sheets with dense internal structures. has the disadvantage that it cannot be used. This is because when a fibrous sheet with poor liquid permeability is processed using a rotating drum method, the liquid enters only from the areas where no resistance is encountered, that is, from the narrow side of the drum that is not covered by the fibrous sheet, and the liquid flows inside the fibrous sheet. This is because almost no water passes through the filter, and the fibrous sort is hardly affected by the cleaning action.
近年、不織布、織布、編布等の布帛にポリウレタンニジ
ストマーを多孔質状に付与したものは人工皮革用の基体
として用いられている。In recent years, fabrics such as nonwoven fabrics, woven fabrics, and knitted fabrics to which polyurethane distomers are applied in a porous manner have been used as substrates for artificial leather.
これら人工皮革基体を製造する方法として、一般に不織
布または織布・編布等の布帛にポリウレタンエラストマ
ー、ポリ塩化ビニル等の高分子物質の溶液を含浸させた
後、これを高分子物質の非溶剤であるが該溶液を構成し
ている溶媒とは相溶性を有する液体中に浸漬して高分子
物質を多孔質状に凝固させ、布帛中に含まれる溶剤を非
溶剤で置換し除去する方法が用いられている。また人工
皮革を製造する際の一方法として、ポリスチレン、ポリ
エチレン等の無極性高分子物質とポリエチレンテレフタ
レート、ポリアミド等の極性高分子物質を混合紡糸また
は複合紡糸し得られる多成分系の混合繊維から布帛を構
成し、ポリウレタンエラストマーの溶液または分散液を
含浸させたのち多孔質状に凝固させ、得られた人工皮革
基体にしなやかさおよび通気性を付与するために上記無
極性高分子物質を無極性溶媒で除去したのち布帛中に残
った溶剤を非溶剤で除去する方法が用いられている。The method for producing these artificial leather substrates is generally to impregnate a nonwoven fabric, woven fabric, knitted fabric, or other fabric with a solution of a polymeric substance such as polyurethane elastomer or polyvinyl chloride, and then impregnate it with a nonsolvent of the polymeric substance. However, a method is used in which the polymer substance is immersed in a liquid that is compatible with the solvent constituting the solution to coagulate it into a porous state, and the solvent contained in the fabric is replaced and removed with a non-solvent. It is being In addition, as one method for manufacturing artificial leather, fabrics are made from multicomponent mixed fibers obtained by mixed spinning or composite spinning of non-polar polymeric substances such as polystyrene and polyethylene and polar polymeric substances such as polyethylene terephthalate and polyamide. The above-mentioned non-polar polymeric substance is mixed with a non-polar solvent in order to impart flexibility and breathability to the resulting artificial leather substrate by impregnating it with a solution or dispersion of polyurethane elastomer and coagulating it into a porous state. A method is used in which the solvent remaining in the fabric is removed using a non-solvent.
しかしながら、これらの方法において溶剤を除去する手
段として上記回転ドラム方式を用いた場合、人工皮革基
体は通常厚みが犬きくかつ内部組織が緻密であるため、
溶剤は除去され難い。However, when the above-mentioned rotating drum method is used as a means for removing the solvent in these methods, since the artificial leather substrate is usually thick and has a dense internal structure,
Solvents are difficult to remove.
従来人工皮革基体から溶剤を除去する方法として、人工
皮革基体を非溶媒中に浸漬し、基体をニップロール間で
搾液し、再度基体を非溶剤中に浸漬する操作を何回も繰
返す方法が採用されている。Conventional methods for removing solvent from artificial leather substrates include immersing the artificial leather substrate in a non-solvent, squeezing the substrate between nip rolls, and immersing the substrate in the non-solvent again, which is repeated many times. has been done.
この方法を用いると、確かに溶剤はほぼ児全に除去でき
ることになるが、その反面人工皮革基体は多段のニップ
ロール間を通過することとなり、ロール間で過大な張力
を受けることとなり歪みを有することとなる。さらに多
段のニップロールおよび非溶剤槽を要するため工程が長
くなり設備も大きくなる。Using this method, it is true that the solvent can be almost completely removed, but on the other hand, the artificial leather base passes between multiple nip rolls, and is subjected to excessive tension between the rolls, resulting in distortion. becomes. Furthermore, multi-stage nip rolls and a non-solvent tank are required, making the process longer and the equipment larger.
もし人工皮革基体の如き通液性の極めて悪い繊維質ンー
トから溶剤を除去するための装置として一般に用いられ
ている多段のニップロールに替えて回転ドラムの使用が
可能で、しかも溶剤除去効率が十分に高いものであるな
らば、繊維質シートに過大な張力がかからず、かつ工程
も極めて短縮できるため、極めて有用なものとなる。If a rotating drum can be used instead of the multistage nip rolls that are commonly used as a device for removing solvents from fibrous materials with extremely poor liquid permeability, such as artificial leather substrates, and the solvent removal efficiency is sufficient. If it is high, excessive tension will not be applied to the fibrous sheet and the process can be extremely shortened, making it extremely useful.
本発明は通液性の悪い繊維質シートを処理するのに適し
た回転ドラム式溶剤除去処理方法を提供することにある
。An object of the present invention is to provide a rotating drum type solvent removal treatment method suitable for treating fibrous sheets with poor liquid permeability.
すなわち本発明の目的は、通液抵抗の小さい織布などの
布帛を処理する従来の回転ドラム方式の場合は、ドラム
自体の通液抵抗は小さい方が効率よく布帛を通液処理で
きるが、通液抵抗の大きい人工皮革基体の如き繊維質シ
ートの場合は、ト°ラム内部に吸液される非溶剤は大部
分が抵抗の少いドラム両端の布帛で覆われていない表面
を通り線維質シートを貫流する液量は少くなり溶剤は容
易に除去されないという欠点を解決することにある０本
発明者らは槙々検討した結果、単位１ＪＩＩ積当りの回
転ドラムの通液抵抗と繊維質ンートの通液抵抗の比率が
０．１〜３．０となるように液の粘度、吸液速度、回転
ドラムの抵抗体を調節することにより、均一に効率良く
繊維質シート中の溶剤を除去することができることを見
出し本発明に到達した。In other words, an object of the present invention is that in the case of a conventional rotating drum system that processes fabrics such as woven fabrics with low liquid flow resistance, the lower the liquid flow resistance of the drum itself, the more efficiently the fabric can be processed. In the case of a fibrous sheet such as an artificial leather substrate that has a high liquid resistance, most of the non-solvent that is absorbed into the drum passes through the surface that is not covered with fabric at both ends of the drum, which has a low resistance, and is transferred to the fibrous sheet. The purpose of the present inventors is to solve the drawback that the amount of liquid flowing through the drum is small and the solvent is not easily removed.As a result of extensive study, the present inventors found that the liquid flow resistance of the rotating drum per unit of JII volume and the The solvent in the fibrous sheet can be removed uniformly and efficiently by adjusting the viscosity of the liquid, the liquid absorption speed, and the resistance element of the rotating drum so that the ratio of liquid passage resistance is 0.1 to 3.0. The present invention was achieved by discovering that this can be done.
この比率が０．１より小さいと、非溶剤は主としてドラ
ム両端の繊維質シートで覆われていない部分を通ってド
ラム内に吸液されるので繊維質シート溶剤の除去率は低
くなり、比率が３．０より太きいと、通液抵抗が全体と
して大きくなり吸液ポンプの負荷が大きくなって不経仇
であるしキギビテーションを起し易いので好ましくない
。If this ratio is less than 0.1, the non-solvent is mainly absorbed into the drum through the parts not covered by the fibrous sheet at both ends of the drum, so the removal rate of the fibrous sheet solvent becomes low, and the ratio increases. If it is thicker than 3.0, the liquid passage resistance increases as a whole, and the load on the liquid suction pump becomes large, which is undesirable and easy to cause kigivitation, which is not preferable.
次に本発明方法を実施できる装置の一具体例を添付の図
面によシ説明する。Next, a specific example of an apparatus capable of carrying out the method of the present invention will be explained with reference to the accompanying drawings.
第１図は処理装置全体の縦断面図である。同図において
溶媒２を満たした処理槽１の内に回転ドラム４が液中に
回転自在の状態で軸架されている０繊維質ンート３はガ
イドロール５から液中に導びかれ、ガイドロール６をへ
て回転ドラムの周面に接触し、この状態で回転ドラム４
０回転に伴って徐々に送られ、ガイドロール７および８
を経て槽外に出る、繊維質シート３は回転ドラム４の周
面に接触している間に液体の除去処理を受けるが、回転
ドラムの周面の少くとも一部は、繊維質シートを通じて
溶媒をドラム内に吸液する構造となっており、これによ
り該液体は置換除去されることとなる。第１図の場合に
は回転ドラム４の上半分が吸液できる構造となっており
、回転ドラム内に吸い込まれた該液体を含む該溶媒はポ
ンプ１０により回転ドラム内より配管９を通して取出さ
れ、配管１１から処理槽１に戻される。勿論槽２内の該
液体濃度はこのままでは処理するに従って上昇する一方
なので、図示してないか別の配管によシ該溶媒を一部補
給しながら槽内の液を一部取出すようにして、槽内の該
液体濃度が一定値を越えないようにしである。また回転
ドラム４の下部では逆洗が行なえるような構造となって
いる。すなわち処理槽１の内部の液２をポリマー屑等の
異物を除去したのち、配管１５を経て回転ドラム内へ圧
入し、この圧入した液を回転ドラム４の下部からドラム
外へ放出することにより、回転ドラム４の表面に付着し
ていた異物を離散させる構造となっている。FIG. 1 is a longitudinal sectional view of the entire processing apparatus. In the same figure, a rotary drum 4 is rotatably suspended in a treatment tank 1 filled with a solvent 2. A fibrous tote 3 is guided into the liquid from a guide roll 5, and is guided into the liquid by a guide roll 5. 6 and comes into contact with the circumferential surface of the rotating drum, and in this state the rotating drum 4
The guide rolls 7 and 8 are gradually fed with the 0 rotation.
The fibrous sheet 3 exits the tank through the fibrous sheet and undergoes a liquid removal process while in contact with the circumferential surface of the rotating drum 4. The structure is such that the liquid is absorbed into the drum, and the liquid is thereby replaced and removed. In the case of FIG. 1, the upper half of the rotating drum 4 has a structure that can absorb liquid, and the solvent containing the liquid sucked into the rotating drum is taken out from inside the rotating drum through a pipe 9 by a pump 10. It is returned to the processing tank 1 through the piping 11. Of course, the concentration of the liquid in the tank 2 will continue to increase as the treatment continues, so some of the liquid in the tank is taken out while replenishing a portion of the solvent through a separate pipe (not shown). This is to prevent the concentration of the liquid in the tank from exceeding a certain value. Further, the lower part of the rotating drum 4 is structured to allow backwashing. That is, after removing foreign substances such as polymer debris from the liquid 2 inside the processing tank 1, it is press-fitted into the rotating drum through the pipe 15, and the press-fitted liquid is discharged from the lower part of the rotating drum 4 to the outside of the drum. The structure is such that foreign matter adhering to the surface of the rotating drum 4 is dispersed.
第２図は回転ドラム４の構造を示す図である。FIG. 2 is a diagram showing the structure of the rotating drum 4. As shown in FIG.
回転ドラム４は軸の両端１６および１７を槽外または槽
内に設けた軸受で支持されており、かつ回転駆動を受け
ている。回転ドラム４の表面には該溶媒がドラム外から
内部に浸入できるように多数の吸液口２１が設けられて
いる。しかしながら通液性の悪い繊維質シートの場合に
は、該溶媒が繊維質シートで偵われていない箇所から専
らドラム内に浸入したり、また繊維質シート内を偏流し
たりして液体の除去処理が不完全となり易いが、本発明
では回転ドラム光面の抵抗板の通液抵抗が繊維質シート
の通液抵抗の１０〜３００チの範囲になるように装置及
び処理条件を調節するものである。更に詳しく貌明する
と、繊維質シートの抵抗を液が通過した時の圧力損失△
ＰＩで代表し、回転ドラム抵抗体の抵抗を同じく圧力損
失△Ｐ２で代表すると、非溶剤の繊維シートを通過する
平均通液速度Ｖについては次のような関係が成立する０
工゛ ６Ｐ□α ７ ・四（１）△Ｐ２α
ψ ・・・・・（２）（１）（２）の関係から
△Ｐ２／△Ｐ１αＶ・・・・・（８）（８）式の比例定
数をＫとすると△Ｐ２／△Ｐｌ＝Ｋｖ・・・・・（８）
′で、Ｋは繊維質ソートの抵抗係数、回転ドラム、吸液
口の直径、長さ、開孔率、吸液口壁面の粗さなどによっ
て決まる一定値であることがわかった。The rotating drum 4 has both ends 16 and 17 of the shaft supported by bearings provided outside or inside the tank, and is rotationally driven. A large number of liquid suction ports 21 are provided on the surface of the rotating drum 4 so that the solvent can enter the drum from outside. However, in the case of a fibrous sheet with poor liquid permeability, the solvent may enter the drum exclusively from areas not covered by the fibrous sheet, or may flow unevenly within the fibrous sheet, causing the liquid to be removed. However, in the present invention, the equipment and processing conditions are adjusted so that the liquid passage resistance of the resistance plate on the optical surface of the rotating drum is within the range of 10 to 300 inches of the liquid passage resistance of the fibrous sheet. . To clarify in more detail, the pressure loss △ when liquid passes through the resistance of the fibrous sheet
If the resistance of the rotating drum resistor is represented by PI and the pressure loss ΔP2 is also represented, then the following relationship holds true for the average liquid flow rate V passing through the non-solvent fiber sheet.
Work゛ 6P□α 7 ・4(1)△P2α
ψ...(2) From the relationship of (1) and (2), △P2/△P1αV...(8) If the proportionality constant in equation (8) is K, then △P2/△Pl=Kv・...(8)
', it was found that K is a constant value determined by the resistance coefficient of the fibrous sort, the rotating drum, the diameter and length of the liquid suction port, the porosity, the roughness of the liquid suction port wall surface, etc.
本発明の方法は、このようにして決まる△Ｐω１の値を
０．１〜３．０の範囲で通液することにより繊維質シー
トから均一に溶剤を除去するものである。The method of the present invention uniformly removes the solvent from the fibrous sheet by passing a liquid through the fibrous sheet with the value of ΔPω1 determined in this manner in the range of 0.1 to 3.0.
第３図は回転ドラム表面の断面図の１例である。FIG. 3 is an example of a cross-sectional view of the surface of the rotating drum.
繊維質ンートと接する回転ドラムの最外周面は網状物１
８で覆われており、その下には吸液口を有する板（以下
吸液口板と称す）２０およびこの吸液口板の表面を複数
個の小区画に分割するための仕切板１９が存在しており
、仕切板１９で区切られた各区画には回転ドラムの内部
に通ずる吸液口２１が少なくとも１つ設けられている。The outermost surface of the rotating drum that is in contact with the fibrous material is covered with mesh material 1.
8, and below it there is a plate 20 having a liquid suction port (hereinafter referred to as a liquid suction port plate) and a partition plate 19 for dividing the surface of this liquid suction port plate into a plurality of small sections. Each section partitioned by the partition plate 19 is provided with at least one liquid suction port 21 communicating with the inside of the rotating drum.
特に繊維質シートの両端が接触する部分は、仕切板１９
で区切られた区画を繊維質シートが覆うこととなるため
、液がシート内を貫流せずに繊維質シートで覆われてい
ない箇所を専ら通ることとなり、液体除去処理が不十分
となるが、この箇所における仕切板と仕切板との間隔（
ドラム軸方向）を十分狭くすることにより、未処理部分
の割合を減らすことが可能となる。また仕切板１９で区
切られた各区画に設ける吸液口２１の径を十分小さくし
て液抵抗を大きくすることにより、繊維質ソートで覆わ
れていない箇所から浸入する液の量を相対的に減少させ
ることができる。また仕切板１９で仕切られた区画は、
網状物１８、仕切板１９および吸液口板２０により完全
に区切られていて、区画内に浸入する液は、その区画上
に接触している繊維質シートを通して浸入する液のみで
あるようにすると同時に、網状物１８を通じての区画間
の液の流通が殆んど無視できるように、することが好ま
しく、シたがって網状物１８は仕切板１９上に仕切板と
隙間なく、一体化されているのが好ましい。Particularly, the part where both ends of the fibrous sheet touch is the partition plate 19.
Since the fibrous sheet covers the compartments separated by , the liquid does not flow through the sheet and instead passes exclusively through the areas not covered by the fibrous sheet, resulting in insufficient liquid removal treatment. The distance between the partition plates at this point (
By making the width (in the direction of the drum axis) sufficiently narrow, it is possible to reduce the proportion of unprocessed portions. In addition, by sufficiently reducing the diameter of the liquid suction ports 21 provided in each section divided by the partition plate 19 to increase liquid resistance, the amount of liquid that enters from areas not covered with the fibrous sort can be relatively reduced. can be reduced. In addition, the sections partitioned by the partition plate 19 are
It is completely separated by the mesh 18, the partition plate 19 and the liquid suction port plate 20, and the only liquid that enters the compartment is the liquid that enters through the fibrous sheet that is in contact with the compartment. At the same time, it is preferable that the flow of liquid between the compartments through the mesh 18 is almost negligible, and therefore the mesh 18 is integrated with the partition plate on the partition plate 19 without any gaps. is preferable.
この点において、網状物として適切な孔径とピッチを有
する打抜金網を用いるのが最も好ましい。In this respect, it is most preferable to use a punched wire mesh having an appropriate hole size and pitch as the mesh.
なお打抜金網とは金属製薄板に丸孔または角孔等を規則
的に配列した開孔率１０〜５０係程度の多孔板のことで
ある。また本発明でいう網状物とは、上記の打抜金網の
外、処理目的により、炉布やフェルト類、金属製あるい
はプラスチック製の綿類、焼結金属等の、いわゆる炉材
として使用されているものの総焼である。Note that the punched wire mesh is a perforated plate with a porosity of about 10 to 50, in which round holes or square holes are regularly arranged in a thin metal plate. In addition to the above-mentioned punched wire mesh, the net material used in the present invention refers to materials used as furnace materials, such as furnace cloth, felt, metal or plastic cotton, and sintered metal, depending on the processing purpose. It was a total burnout of everything.
また吸液１」２１が繊維屑やポリマー屑等によシ塞がれ
た場合には、直ちにその吸液口に通じる区画に接してい
る繊維質シートは液体除去処理を受けなくなり、繊維質
ンート内に処理を受けなかった部分がスポット的に存在
することとなるが、このような事態を招−かないために
は、回転ドラム表面に設ける網状物のメツシュ径を吸液
口の径より細かくすれば対策として有効である。In addition, if the liquid suction 1'' 21 is clogged with fiber waste, polymer waste, etc., the fibrous sheet that is in contact with the compartment leading to the liquid suction port will not be subjected to the liquid removal process, and the fibrous sheet will not be able to remove the liquid. However, in order to prevent this from occurring, the diameter of the mesh provided on the surface of the rotating drum should be made smaller than the diameter of the liquid suction port. This is an effective countermeasure.
回転ドラトの大きさ、網状物１８のメツシュ径、吸液口
２１の径、仕切板１９で区切られた区画の大きさ等は処
理速度や、必要通液量、処理される繊維質シートの通液
性等によって異なる〇一般に回転ドラムの径は３０〜１
００ｃｒｎが製作面から適当な範囲である。網状物】８
のメツシュ径は、打抜金網を用いた場合、０．５〜１，
５問、開孔率は１０〜３０チ、吸液口２１の径は２−４
ｍｍ、仕切板１９で区切られた１区画の大きさはドラム
軸方向の長さで２〜８ｏｎ 、面積で２０〜８〇−程度
が好ましい０
第４図は第２図に示されている回転ドラム４のＡｓ分で
の縦断面の図であり、回転ドラムの内部は間仕切板２２
によりロール表面の円周方向の仕切板１９に合わせて分
割されており、ドラム内部の片端は密閉されており、他
の端面は第５図に示される如く間仕切板２２による各区
分毎に孔２３が明いた平滑面となっている。この面に第
６図で示す孔２５および２６の明いた平滑面を有する固
定ボックス２４の内部は間仕切板３０で２分割されてお
り、夫々孔２５から固定ボックス２４内に浸入した液は
配管２７から排出され、また配管２８から固定ボックス
２４内に浸入した液は孔２６から回転ドラム内に圧入さ
れるようになっており、これらの液は固定ボックス２４
の内部では混合しない構造となっている。The size of the rotating draught, the mesh diameter of the net-like material 18, the diameter of the liquid suction port 21, the size of the compartment divided by the partition plate 19, etc. will depend on the processing speed, the required liquid flow rate, and the flow rate of the fibrous sheet to be processed. Varies depending on liquid properties, etc. Generally, the diameter of the rotating drum is 30 to 1
00crn is an appropriate range from a manufacturing standpoint. Net-like material] 8
The mesh diameter is 0.5 to 1 when using punched wire mesh.
5 questions, porosity is 10 to 30 inches, diameter of liquid suction port 21 is 2 to 4
mm, and the size of one section divided by the partition plate 19 is preferably about 2 to 8 mm in length in the axial direction of the drum, and about 20 to 80 mm in area.0 Figure 4 shows the rotation shown in Figure 2. It is a longitudinal cross-sectional view of the drum 4 at the As portion, and the interior of the rotating drum is a partition plate 22.
The drum is divided into sections according to partition plates 19 in the circumferential direction of the roll surface, one end of the inside of the drum is sealed, and the other end surface is divided into holes 23 in each section by partition plates 22 as shown in FIG. It is a smooth surface with a clear surface. The inside of the fixed box 24, which has a smooth surface with holes 25 and 26 shown in FIG. The liquid discharged from the fixed box 24 from the piping 28 is press-fitted into the rotating drum through the hole 26.
It has a structure that does not mix inside.
本発明の装置は以上詳述したような構造を有しているの
であるが、溶媒の流れについて再度説明すれば、配管２
７を通して槽外のポンプ１０で吸引することにより、処
理槽１の内部の溶媒は繊維質シート３を通り網状物１８
から吸液口板２０に設けられた吸液口２１を通りドラム
内部に浸入し、固定ボックス２４の孔２５と一致する孔
２３に通じるロール内部の液は、孔２３．２５を通り、
配管２７より槽外に排出されることとなる。一方、槽外
のポンプ１３で加圧された溶媒は配管２８より固定ボッ
クス２４に入り、孔２６と一致する回転ドラムの孔２３
から回転ドラム内に入り、その区分にある吸液口板の吸
液口から、回転ドラム外へ放出される。その際に回転ド
ラムの表面の網状物に付着しているゴミ、繊維屑等がド
ラム表面から離散され、いわゆる逆洗が行なわれる。寸
だ固定ボックス２４の孔２５と孔２６に対して回転ドラ
ムが回転することにより、回転ドラムに設けられた孔２
３は吸引と逆洗の液の流れを交互に受けることとなる。The apparatus of the present invention has the structure as described in detail above, but to explain the flow of the solvent again, the pipe 2
By suctioning through pump 10 outside the tank through 7, the solvent inside the treatment tank 1 passes through the fibrous sheet 3 and into the mesh 18.
The liquid inside the roll enters the inside of the drum through the liquid suction port 21 provided on the liquid suction port plate 20 and communicates with the hole 23 which coincides with the hole 25 of the fixing box 24. The liquid inside the roll passes through the hole 23.25.
It will be discharged from the tank through the pipe 27. On the other hand, the solvent pressurized by the pump 13 outside the tank enters the fixed box 24 through the piping 28, and enters the hole 26 of the rotating drum that matches the hole 26.
The liquid enters the rotating drum through the liquid suction port of the liquid suction port plate in that section and is discharged to the outside of the rotating drum. At this time, dust, fiber debris, etc. adhering to the net-like material on the surface of the rotating drum are dispersed from the drum surface, and so-called backwashing is performed. By rotating the rotary drum relative to the holes 25 and 26 of the size fixing box 24, the holes 2 provided in the rotary drum are rotated.
No. 3 receives suction and backwashing liquid flows alternately.
繊維質シートの液体除去処理区間を多くするには、固定
ボックス２４の孔２５０角度（第６図におけるα）を大
きくとればよく、また逆洗を十分に行なうだめには、孔
２６の角度（第６図におけるβ）を大きくとればよい０
本発明の方法において、繊維質シートの通液性が極めて
悪く、繊維質／−トを通じて溶媒を回転ドラム外部から
回転ドラム内に吸引するのに、１ｋｙ／ｃｒＡ近くの吸
引力を必要とする場合は、丑だ非溶剤がその沸点近くの
温度まで力■熱されている場合などには、回転ドラムを
槽の底部に設置し液深をかけた９、あるいは槽内を加圧
して液を押し込む方法を採用するのが好ましい。In order to increase the liquid removal processing section of the fibrous sheet, the angle of the hole 250 (α in FIG. 6) of the fixed box 24 should be made large, and in order to perform sufficient backwashing, the angle of the hole 26 ( If β) in Fig. 6 is made large, 0
In the method of the present invention, when the liquid permeability of the fibrous sheet is extremely poor and a suction force of nearly 1 ky/crA is required to suck the solvent from outside the rotating drum into the rotating drum through the fibrous sheet. If the non-solvent is heated to a temperature close to its boiling point, place a rotating drum at the bottom of the tank and increase the depth of the liquid, or pressurize the tank to force the liquid. It is preferable to adopt the method.
また上述した方法とは逆に、溶媒を回転ドラムの内部か
ら外部へ放出する方法もある。この場合には、繊維質７
−トをドラム局面に圧着させる重置が付加されるが、ド
ラムの構造は基本的に同ｔである。There is also a method in which the solvent is discharged from the inside of the rotating drum to the outside, contrary to the method described above. In this case, fibrous 7
The structure of the drum is basically the same, although an overlay is added to press the drum surface against the surface of the drum.
以上詳述したように、本発明の方法を用いるごとにより
通液性の悪い繊維質ノートでも十分に春剤を除去でき、
しかも従来の多段のニツプローノと比べて繊維質シート
に過大な張力がかからず、かつ工程も短縮することがで
き１本発明により閥たらされるメリットは極めて太きい
。As detailed above, by using the method of the present invention, spring agents can be sufficiently removed even from fibrous notebooks with poor liquid permeability.
Moreover, compared to the conventional multi-stage Nitsuprono, excessive tension is not applied to the fibrous sheet, and the process can be shortened, so the advantages brought about by the present invention are extremely large.
次に本発りｊの具体的笑施例をあげる〇実施例１
ポリアミド系繊維質シートにポリウレタンのだメチルホ
ルムアミド（以下Ｄ Ｍ ｉｉ”と略記ずつ溶妬を含浸
させ、これを非溶剤である水の甲に浸漬１せてポリウレ
タンを多孔質状に凝固させた後、し１〜Ｇで説明した装
置を用いて、繊維質シート「に残されたＤ Ｍ Ｆを非
溶剤である水で置換除去Ｉた。貫流時の平均流速は８．
９ ｗａｓ／ ｓｅｅ、液温は８（℃、繊維質シートの
抵抗による圧損はΔＰｓ＝ ６５ ：ｈ／ｎ？ｓ回転ド
ラムの吸水口を通過した時の圧損暇 △Ｐ２ ＝ ６
４８聯／イで、ΔＰ２／ΔＰ１＝０．９９３であつ／こ
。Next, I will give a concrete example of Hondorij.〇Example 1 A polyamide-based fibrous sheet is impregnated with polyurethane methylformamide (hereinafter abbreviated as "DMii"), which is a non-solvent. After immersing the polyurethane in water to solidify it into a porous state, the DMF remaining on the fibrous sheet was replaced with water, which is a non-solvent, using the equipment described in Steps 1 to G. The average flow rate during flow through was 8.
9 was/see, liquid temperature is 8 (°C), pressure loss due to resistance of fibrous sheet is ΔPs = 65:h/n?s Pressure loss time when passing through water intake port of rotating drum ΔP2 = 6
48 tether/a, ΔP2/ΔP1=0.993.
］ 貫流液量４６１／ｄで均一に溶剤を除去することが
できた。] The solvent could be removed uniformly with a throughflow liquid amount of 461/d.
−４、図面の簡単な説明
距 第１図は本発明方法を行なうことが出来る装置′
全体の正面図であり、第２図はその主秩部である回転
ドラムの図であり、第３図は回転ドラムの表） 面の縦
断面図、第４〜６図は第２図の回転ドラムをそれぞれＡ
、Ｂ、Ｃの部分で切断した場合の断面図である。-4. Brief explanatory distance of the drawings Figure 1 shows an apparatus capable of carrying out the method of the present invention.
2 is a front view of the whole, FIG. 2 is a diagram of the rotating drum which is the main part of the rotating drum, FIG. 3 is a vertical sectional view of the front side of the rotating drum, and FIGS. A each drum
, B, and C. FIG.
特許出鯖株式会社クラレ に 代理人弁理士本多 堅 ） 邑 第１図 第２ 図 第３記 箒５ 図 第 ４図 第６閲Patented Saba Kuraray Co., Ltd. to Representative Patent Attorney Ken Honda ) Village Figure 1 Figure 2 Book 3 Broom 5 diagram Figure 4 6th review
Claims (1)
るに際して、該液体と相溶性を有する溶媒を満たした槽
内に通液性の抵抗板を有する回転ドラムを軸架し、単位
面積邑りの回転ドラム抵抗板の通液抵抗と繊維質シート
の通液抵抗の比率が０．１〜３．０となるような条件で
繊維質シートに該溶媒を通液させることにより繊維質シ
ートから含有液体を除去する方法。 ２、 回転ドラムの局面が網状物あるいは多孔状物で覆
われてお９、かつこの網状物あるいは多孔状物の下には
多数の吸液口を有する板が存在している回転ドラムを用
いる特許請求の範囲第１項記載の方法。 ３、網状物が打抜金網である特許請求の範囲第２項記載
の方法。 ４、吸液口を有する板の表面が仕切板によって複数個の
小区画に分割さｔている特許請求の範囲第２項記載の方
法。[Claims] 1. When removing a liquid from a fibrous sheet containing a liquid, a rotary drum having a liquid-permeable resistance plate is mounted on a shaft in a tank filled with a solvent that is compatible with the liquid. and passing the solvent through the fibrous sheet under conditions such that the ratio of the liquid passage resistance of the rotating drum resistance plate per unit area to the liquid passage resistance of the fibrous sheet is 0.1 to 3.0. A method of removing contained liquid from a fibrous sheet by. 2. A patent using a rotating drum in which the surface of the rotating drum is covered with a net-like material or a porous material9, and a plate having a large number of liquid suction ports is present below the net-like material or porous material. The method according to claim 1. 3. The method according to claim 2, wherein the net-like material is a punched wire mesh. 4. The method according to claim 2, wherein the surface of the plate having the liquid suction ports is divided into a plurality of small sections by partition plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57209594A JPS59100757A (en) | 1982-11-29 | 1982-11-29 | Removal of liquid from fibrous sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57209594A JPS59100757A (en) | 1982-11-29 | 1982-11-29 | Removal of liquid from fibrous sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59100757A true JPS59100757A (en) | 1984-06-11 |
| JPH0217666B2 JPH0217666B2 (en) | 1990-04-23 |
Family
ID=16575406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57209594A Granted JPS59100757A (en) | 1982-11-29 | 1982-11-29 | Removal of liquid from fibrous sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59100757A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009144284A (en) * | 2007-12-14 | 2009-07-02 | Teijin Techno Products Ltd | Dry-wet spinning apparatus |
| JP2009144283A (en) * | 2007-12-14 | 2009-07-02 | Teijin Techno Products Ltd | Roller in coagulation liquid and wet or dry-wet spinning method using the same |
-
1982
- 1982-11-29 JP JP57209594A patent/JPS59100757A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009144284A (en) * | 2007-12-14 | 2009-07-02 | Teijin Techno Products Ltd | Dry-wet spinning apparatus |
| JP2009144283A (en) * | 2007-12-14 | 2009-07-02 | Teijin Techno Products Ltd | Roller in coagulation liquid and wet or dry-wet spinning method using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0217666B2 (en) | 1990-04-23 |
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