JPH04310219A - Hollow fiber membrane sheet - Google Patents
Hollow fiber membrane sheetInfo
- Publication number
- JPH04310219A JPH04310219A JP7154491A JP7154491A JPH04310219A JP H04310219 A JPH04310219 A JP H04310219A JP 7154491 A JP7154491 A JP 7154491A JP 7154491 A JP7154491 A JP 7154491A JP H04310219 A JPH04310219 A JP H04310219A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- fiber membranes
- thermocompressed
- membranes
- 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.)
- Withdrawn
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 132
- 239000012510 hollow fiber Substances 0.000 title claims abstract description 123
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229920001169 thermoplastic Polymers 0.000 abstract description 5
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 5
- 239000004952 Polyamide Substances 0.000 abstract description 3
- 229920002647 polyamide Polymers 0.000 abstract description 3
- 229920000098 polyolefin Polymers 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 238000001914 filtration Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 238000005520 cutting process Methods 0.000 description 8
- -1 fluororesin Polymers 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920002492 poly(sulfone) Polymers 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は人工肺、人工透析、血漿
分離、純水製造、気体ろ過および浄水器等に用いられる
中空糸膜カートリッジを製造するのに適した中空糸膜シ
ートに関するものである。[Industrial Application Field] The present invention relates to a hollow fiber membrane sheet suitable for manufacturing hollow fiber membrane cartridges used in artificial lungs, artificial dialysis, plasma separation, pure water production, gas filtration, water purifiers, etc. be.
【０００２】0002
【従来の技術】一般に中空糸膜カートリッジは中空糸膜
束を所定の長さにカットして容器内に収納し、エポキシ
樹脂又はウレタン樹脂等で中空糸膜端部を容器に接着固
定することによって製作される。しかしながら、中空糸
膜端の開口部を開口状態のままで接着固定すると開口部
から樹脂が侵入して中空部を塞ぎ、カートリッジとして
使用できないものになるので、それを避けるためあらか
じめ中空糸膜束端を樹脂・石膏等で仮封鎖した状態で接
着固定し、固定後に仮封鎖した部分を切断して中空糸膜
束端を開口状態にする方法が採用されている。また、長
尺で供給される中空糸膜では、中空糸膜をいったんルー
プ状に巻き取り、両端がＵ字型になるように束ねて容器
に接着固定し、固定されたＵ字型部分の一部を切断して
中空糸膜束端を開口状態にする方法が採用されている。[Prior Art] Hollow fiber membrane cartridges are generally manufactured by cutting a hollow fiber membrane bundle into a predetermined length, storing it in a container, and then adhesively fixing the ends of the hollow fiber membranes to the container using epoxy resin, urethane resin, etc. Manufactured. However, if the opening at the end of the hollow fiber membrane is left open and fixed with adhesive, the resin will enter through the opening and block the hollow, making it unusable as a cartridge. A method is adopted in which the hollow fiber membrane bundle is temporarily sealed with resin, plaster, etc. and then adhesively fixed, and after fixing, the temporarily sealed part is cut to leave the ends of the hollow fiber membrane bundle open. In addition, for hollow fiber membranes supplied in long lengths, the hollow fiber membranes are wound up into a loop, bundled so that both ends are U-shaped, and fixed to a container with adhesive, and the fixed U-shaped part A method has been adopted in which the ends of the hollow fiber membrane bundle are left open by cutting the hollow fiber membrane bundle.
【０００３】0003
【発明が解決しようとする課題】従来の技術においては
、主にカートリッジ製作時の仮封鎖の加工コスト、該仮
封鎖の信頼性、接着固定時の中空糸膜束の乱れ及び固定
の信頼性について問題があった。また中空糸膜束端部を
上記したようにＵ字型で固定し、Ｕ字型部分の一部を切
断して中空糸膜束端を開口させる方法でも、端部の位置
がＵ字型のループの内側と外側で異なるため、中空糸膜
束端を完全に開口させようとすると、中空糸膜束の接着
固定部を多く切断しなければならなかった。すなわち、
封鎖部分およびＵ字型に接着固定された部分はカートリ
ッジ完成時には廃棄される部分でありながら、仮封鎖工
程では材料費と加工費がかかり、接着固定する工程では
材料費をかけざるを得なかった。また、この仮封鎖やＵ
字型部分を接着固定する工程が支障なく行われているか
どうかは、これらの段階では判定が困難であり、カート
リッジ製作後の固定部切断面の観察ではじめてその良否
が判定できるようになる。更にこの仮封鎖部が不良の場
合は、一部の中空糸膜の開口部が固定用樹脂によって封
鎖されて膜として機能しないためカートリッジに所定の
膜面積が確保できず、時にはせっかく製作したカートリ
ッジを不良品として廃棄しなければならない。また中空
糸膜束端部をＵ字型で固定し、Ｕ字型部分の一部を切断
して中空糸膜束端を開口させる場合も、切断寸法が足り
ないと中空糸膜束端を充分に開口させることができない
ため、カートリッジが所定の膜面積を確保できなくなる
。[Problems to be Solved by the Invention] In the conventional technology, the processing cost of temporary sealing during cartridge production, the reliability of the temporary sealing, the disturbance of the hollow fiber membrane bundle when fixing with adhesive, and the reliability of fixing are mainly addressed. There was a problem. Alternatively, if the end of the hollow fiber membrane bundle is fixed in a U-shape as described above and the end of the hollow fiber membrane bundle is opened by cutting a part of the U-shaped part, the position of the end is in the U-shape. Since the inside and outside of the loop are different, in order to completely open the ends of the hollow fiber membrane bundle, it was necessary to cut many of the adhesively fixed parts of the hollow fiber membrane bundle. That is,
Although the sealing part and the U-shaped adhesively fixed part are parts that will be discarded when the cartridge is completed, the temporary sealing process requires material and processing costs, and the adhesive fixing process has no choice but to incur material costs. . Also, this temporary blockade and the
It is difficult to judge at these stages whether the process of adhesively fixing the letter-shaped parts has been carried out without any problems, and the quality can only be determined by observing the cut surface of the fixing part after the cartridge is manufactured. Furthermore, if this temporary sealing part is defective, some of the hollow fiber membrane openings will be blocked by the fixing resin and will not function as a membrane, making it impossible to secure the required membrane area in the cartridge, and sometimes causing the cartridge to fail. It must be discarded as a defective product. Also, when fixing the end of the hollow fiber membrane bundle in a U-shape and opening the end of the hollow fiber membrane bundle by cutting a part of the U-shaped part, if the cutting dimension is insufficient, the end of the hollow fiber membrane bundle cannot be opened sufficiently. Since the cartridge cannot be opened completely, the cartridge cannot secure a predetermined membrane area.
【０００４】また、中空糸膜束を容器内に収納する際は
、中空糸膜束をきれいに揃えて容器内に収納する必要が
ある。さもないと周辺部の中空糸膜が乱れて中空糸膜端
部を固定するときに端部が固定用樹脂内に埋設してしま
い、その中空糸膜が有効に使えなくなることがあった。
また、中空糸膜は束の形で容器へ収納されるので、容器
内に中空糸膜が比較的密に充填されることになり、その
結果、固定時において中空糸膜束の中央部へ固定用樹脂
が侵入しにくく、中空糸膜間の固定不良が発生し易いと
言う問題があった。[0004] Furthermore, when storing the hollow fiber membrane bundle in a container, it is necessary to neatly align the hollow fiber membrane bundle and store it in the container. Otherwise, the hollow fiber membranes in the peripheral area would be disturbed, and when the ends of the hollow fiber membranes were fixed, the ends would be buried in the fixing resin, making it impossible to use the hollow fiber membranes effectively. In addition, since the hollow fiber membranes are stored in a container in the form of a bundle, the hollow fiber membranes are packed relatively densely in the container, and as a result, when fixed, they are fixed to the center of the hollow fiber membrane bundle. There was a problem in that it was difficult for the resin to penetrate, and poor fixation between the hollow fiber membranes was likely to occur.
【０００５】以上の問題点を解決しようとした発明とし
ては特開昭６２−５７９６５号公報に開示された、従来
のループ状に巻かれた中空糸膜束のＵ字型両端を固定す
る方法を改善した方法がある。しかし、基本的に仮封鎖
が必要な方法で、あらかじめ定長に切断された中空糸膜
は使えず、非常にデリケートな中空糸膜を編み機にかけ
るという中空糸膜を傷つける可能性のある方法である。[0005] An invention that attempts to solve the above problems is a method of fixing both U-shaped ends of a conventional hollow fiber membrane bundle wound in a loop, as disclosed in Japanese Patent Application Laid-Open No. 62-57965. There is an improved method. However, this method basically requires temporary sealing, cannot use hollow fiber membranes that have been cut to a fixed length, and involves putting the extremely delicate hollow fiber membranes through a knitting machine, which can potentially damage the hollow fiber membranes. be.
【０００６】[0006]
【課題を解決するための手段】この発明の特徴は、同方
向に引きそろえられた多数本の熱可塑性樹脂の中空糸膜
が、該中空糸膜の長手方向に対して一定間隔で圧着され
てなる中空糸膜シートにある。この発明において用いら
れる中空糸膜は気液接触・液液接触による物質の分離・
ろ過等に用いられる中空糸膜であり、熱圧着可能な熱可
塑性の素材でつくられたものであれば何でも良い。例え
ば、ポリオレフィン系、フッ素樹脂系、ポリアミド系、
ポリスルホン系等が使用できる。中空糸膜の長さは長尺
でもあらかじめ定長に切断したものでもいづれでも良く
、長尺の中空糸膜の場合にはたとえば図１の様に折り返
して用い、あらかじめ定長に切断された中空糸膜の場合
は図２の様に多数本を平行に並べて用いる。このように
並べられた中空糸膜をヒートシーラー又は超音波シーラ
ー等の熱圧着器を用いて熱圧着することにより、図３又
は図５のような一定間隔で熱圧着された中空糸膜シート
が作製される。中空糸膜は熱圧着により潰れて幅が広く
なった部分がとなりあった中空糸膜のそれと重なって熱
圧着と同時にその部分が溶着することでシート状になる
。中空糸膜間に距離がある場合、中空糸膜同士の溶着が
不十分でシートの形成が良くない場合には、熱可塑性の
テープを併用して図４又は図６のようにテープを介して
熱圧着すれば良好な中空糸膜シートが作製される。熱可
塑性のテープの素材としては、例えば、ポリオレフィン
系、フッ素樹脂系、ポリアミド系、ポリスルホン系等が
使用できる。中空糸膜を並べる間隔は、中空糸膜の外径
・熱可塑性テープの厚み・中空糸膜シートの端部を固定
する樹脂の粘度等を考慮して決めれば良い。[Means for Solving the Problems] A feature of the present invention is that a large number of thermoplastic resin hollow fiber membranes aligned in the same direction are crimped at regular intervals in the longitudinal direction of the hollow fiber membranes. It is a hollow fiber membrane sheet. The hollow fiber membrane used in this invention is capable of separating substances through gas-liquid contact and liquid-liquid contact.
It is a hollow fiber membrane used for filtration, etc., and any membrane can be used as long as it is made of thermoplastic material that can be bonded under heat. For example, polyolefin, fluororesin, polyamide,
Polysulfone type etc. can be used. The length of the hollow fiber membrane may be long or cut into a fixed length beforehand.In the case of a long hollow fiber membrane, for example, as shown in Fig. 1, the hollow fiber membrane is folded back and used. In the case of thread membranes, a large number of threads are arranged in parallel as shown in Figure 2. By thermocompression bonding the hollow fiber membranes arranged in this way using a thermocompression bonder such as a heat sealer or an ultrasonic sealer, a hollow fiber membrane sheet thermocompression bonded at regular intervals as shown in FIG. 3 or 5 can be obtained. Created. The hollow fiber membrane is crushed and widened by thermocompression bonding, and the widened portion overlaps with that of the adjacent hollow fiber membrane, and at the same time as the thermocompression bonding, those portions are welded together, resulting in a sheet-like shape. If there is a distance between the hollow fiber membranes, or if the welding of the hollow fiber membranes is insufficient and the sheet formation is poor, use a thermoplastic tape in conjunction with the tape as shown in Figure 4 or Figure 6. A good hollow fiber membrane sheet can be produced by thermocompression bonding. As the material for the thermoplastic tape, for example, polyolefin, fluororesin, polyamide, polysulfone, etc. can be used. The spacing between the hollow fiber membranes may be determined by taking into account the outer diameter of the hollow fiber membranes, the thickness of the thermoplastic tape, the viscosity of the resin that fixes the ends of the hollow fiber membrane sheet, and the like.
【０００７】熱圧着は中空糸膜の長手方向に対して一定
間隔をもって、行われる。熱圧着によって中空糸膜の中
空部が閉塞されるので、結果として多数本の中空糸膜が
同じ長さで目止めされることになる。したがって、この
発明によれば、従来のような目止材を必要としないで簡
単に目止めを行うことができる。また目止めされた中空
糸膜の長さが同一であるので、束を容器へ収納し接着固
定したのち、中空糸膜端を開口させる際の切断部分が少
なくてすむというメリットがある。[0007] Thermocompression bonding is performed at regular intervals in the longitudinal direction of the hollow fiber membrane. Since the hollow portions of the hollow fiber membranes are closed by thermocompression bonding, a large number of hollow fiber membranes are sealed with the same length as a result. Therefore, according to the present invention, sealing can be easily performed without requiring a conventional sealing material. Furthermore, since the lengths of the sealed hollow fiber membranes are the same, there is an advantage that less cutting is required when opening the ends of the hollow fiber membranes after the bundle is stored in a container and fixed with adhesive.
【０００８】同方向に引きそろえられた多数本の長尺の
中空糸膜が、一定間隔で平行に熱圧着されたシートの１
例を図５に示す。このシートを熱圧着された部分で切断
することにより、目止めされた中空糸膜シートが多数枚
得られる。また、切断せずに熱圧着部分で折り畳んで束
をつくることもできるので、整束が容易で取扱いが簡単
である。[0008] A large number of long hollow fiber membranes aligned in the same direction are bonded by heat and pressure in parallel at regular intervals.
An example is shown in FIG. By cutting this sheet at the thermocompression bonded portion, a large number of sealed hollow fiber membrane sheets can be obtained. Further, since the bundle can be made by folding at the thermocompression bonded portion without cutting, it is easy to bundle and handle.
【０００９】この発明の中空糸膜シートは、例えば図７
又は図８のようにのりまき状に巻いて束とし、容器に収
納して端部を図９のように樹脂で固定し、Ａ−Ａ′で切
断して中空糸膜の端面を開口させることができる。The hollow fiber membrane sheet of the present invention is shown in FIG.
Or, as shown in Figure 8, roll it up into a bundle, store it in a container, fix the ends with resin as shown in Figure 9, and cut along A-A' to open the end face of the hollow fiber membrane. Can be done.
【００１０】0010
【実施例】次に、実施例および比較例によって本発明を
さらに詳細に説明する。EXAMPLES Next, the present invention will be explained in more detail with reference to Examples and Comparative Examples.
【００１１】[0011]
【実施例１】外径０．４５ｍｍ、内径０．３５ｍｍの同
一長を有するポリエチレン製中空糸膜を多数本ひきそろ
え、それぞれの中空糸膜が３重以上重ならないようにシ
ート状に並べて、その端部をヒートシーラーで熱圧着し
中空糸膜シートを作製した。この中空糸膜シートを中空
糸膜の長手方向に対して半分の場所で折り返した後、図
８のようにのりまき状に巻いて、熱圧着部分をウレタン
樹脂で固定後、熱圧着部分を切り落として中空糸膜端を
開口し、カートリッジに組み立てた。このカートリッジ
を水中で中空糸膜の外面よりエアー加圧して洩れ検査を
行ったところ、洩れはみられなく、中空糸膜束の固定不
良が発生していないことが確認された。また、ろ過流量
を測定したところ、カートリッジのろ過流量は中空糸膜
単体から面積換算で求めた値とほぼ一致し、所定の膜面
積が確保されていることが確認された。[Example 1] A large number of polyethylene hollow fiber membranes having the same length with an outer diameter of 0.45 mm and an inner diameter of 0.35 mm are arranged in a sheet shape so that each hollow fiber membrane does not overlap more than 3 times. The ends were thermocompressed using a heat sealer to produce a hollow fiber membrane sheet. After folding this hollow fiber membrane sheet in half in the longitudinal direction of the hollow fiber membrane, it is rolled up into a glue-like shape as shown in Figure 8, the thermo-compression bonded part is fixed with urethane resin, and the thermo-compression bonded part is cut off. The ends of the hollow fiber membranes were opened and assembled into a cartridge. When this cartridge was inspected for leakage by applying air pressure from the outer surface of the hollow fiber membrane in water, no leakage was observed, and it was confirmed that there was no fixation failure in the hollow fiber membrane bundle. Furthermore, when the filtration flow rate was measured, it was confirmed that the filtration flow rate of the cartridge almost matched the value calculated in terms of area from a single hollow fiber membrane, and it was confirmed that the predetermined membrane area was secured.
【００１２】0012
【実施例２】実施例１で用いた中空糸膜を多数本厚さ２
０μｍのポリエチレン製テープの上にそれらの端部が位
置し、しかもそれぞれが重ならないように平行に隙間な
く並べて、その端部をヒートシーラーで熱圧着し、中空
糸膜シートを作製した。この中空糸膜シートを中空糸膜
の長手方向に対して半分の場所で折り返した後、図８の
ようにのりまき状に巻いて、熱圧着部分をウレタン樹脂
で固定後、熱圧着部分を切り落として中空糸膜端を開口
し、カートリッジに組み立てた。このカートリッジを水
中で中空糸膜の外面よりエアー加圧して洩れ検査を行っ
たところ、洩れはみられなく、中空糸膜束の固定不良が
発生していないことが確認された。また、ろ過流量を測
定したところ、カートリッジのろ過流量は中空糸膜単体
から面積換算で求めた値とほぼ一致し、所定の膜面積が
確保されていることが確認された。[Example 2] A large number of hollow fiber membranes used in Example 1 with a thickness of 2
Their ends were placed on a 0 μm polyethylene tape, and they were lined up parallel to each other without any gaps so that they did not overlap, and the ends were thermally compressed using a heat sealer to produce a hollow fiber membrane sheet. After folding this hollow fiber membrane sheet in half in the longitudinal direction of the hollow fiber membrane, it is rolled up into a glue-like shape as shown in Figure 8, the thermo-compression bonded part is fixed with urethane resin, and the thermo-compression bonded part is cut off. The ends of the hollow fiber membranes were opened and assembled into a cartridge. When this cartridge was inspected for leakage by applying air pressure from the outer surface of the hollow fiber membrane in water, no leakage was observed, and it was confirmed that there was no fixation failure in the hollow fiber membrane bundle. Furthermore, when the filtration flow rate was measured, it was confirmed that the filtration flow rate of the cartridge almost matched the value calculated in terms of area from a single hollow fiber membrane, and it was confirmed that the predetermined membrane area was secured.
【００１３】[0013]
【実施例３】外径０．９ｍｍ、内径０．６ｍｍの同一長
を有するポリスルホン製中空糸膜を多数本、厚さ２０μ
ｍのポリエチレン製テープの上にそれらの端部が位置し
、しかもそれぞれが重ならないように平行に１ｍｍ間隔
で並べて、その端部をヒートシーラーで熱圧着し、中空
糸膜シートを作製した。このシートを図７のようにのり
まき状に巻いて、熱圧着部分をエポキシ樹脂で固定後、
熱圧着部分を切り落として中空糸膜端を開口し、カート
リッジに組み立てた。このカートリッジを水中で中空糸
膜の外面よりエアー加圧して洩れ検査を行ったところ、
洩れはみられなく、中空糸膜束の固定不良が発生してい
ないことが確認された。また、ろ過流量を測定したとこ
ろ、カートリッジのろ過流量は中空糸膜単体から面積換
算で求めた値とほぼ一致し、所定の膜面積が確保されて
いることが確認された。[Example 3] A large number of polysulfone hollow fiber membranes having the same length with an outer diameter of 0.9 mm and an inner diameter of 0.6 mm, and a thickness of 20 μm.
The ends of these tapes were placed on top of the polyethylene tape of 1.0 m, and they were arranged parallel to each other at 1 mm intervals so as not to overlap, and the ends were thermocompressed using a heat sealer to produce a hollow fiber membrane sheet. After rolling this sheet into a paste shape as shown in Figure 7 and fixing the thermocompression bonded part with epoxy resin,
The thermocompression bonded portion was cut off to open the end of the hollow fiber membrane, and it was assembled into a cartridge. When this cartridge was tested for leakage under water by applying air pressure from the outer surface of the hollow fiber membrane, it was found that
No leakage was observed, and it was confirmed that there was no fixation failure of the hollow fiber membrane bundle. Furthermore, when the filtration flow rate was measured, it was confirmed that the filtration flow rate of the cartridge almost matched the value calculated in terms of area from a single hollow fiber membrane, and it was confirmed that the predetermined membrane area was secured.
【００１４】[0014]
【比較例１】実施例１で用いた中空糸膜を最も簡便な目
止め方法と考えられる石膏による目止め方法で目止めを
行ってみたが、中空糸膜の内径が小さすぎたためほとん
どの中空糸膜が目止め不良になり、中空糸膜束をウレタ
ン樹脂で固定後、所定の位置で切断したが、切断面には
中空糸膜の開口部は殆どみあたらなかった。このカート
リッジのろ過流量は、所定の膜面積が得られていなかっ
たため、中空糸膜単体から面積換算で求めた値より極端
に少なかった。[Comparative Example 1] The hollow fiber membrane used in Example 1 was sealed using plaster, which is considered to be the simplest sealing method, but since the inner diameter of the hollow fiber membrane was too small, most of the hollow fibers were sealed. The fiber membranes were poorly sealed, and after fixing the hollow fiber membrane bundle with urethane resin, it was cut at a predetermined position, but almost no openings in the hollow fiber membranes were found on the cut surface. Since the predetermined membrane area was not obtained, the filtration flow rate of this cartridge was extremely lower than the value calculated in terms of area from a single hollow fiber membrane.
【００１５】[0015]
【比較例２】外径０．４５ｍｍ、内径０．３５ｍｍの長
尺のポリエチレン製中空糸膜をループ状束に巻き取り、
両端がＵ字型を有する束として容器に収納し、端部をウ
レタン樹脂で固定したのち、固定されたＵ字型部分の一
部を切断してカートリッジを作製した。このカートリッ
ジを水中で中空糸膜の外面よりエアー加圧して洩れ検査
を行ったところ、固定用樹脂の切断面の中空糸膜間から
洩れが発生した。これは固定用樹脂で固定する部分の中
空糸膜の充填密度が高いためとわかった[Comparative Example 2] A long polyethylene hollow fiber membrane with an outer diameter of 0.45 mm and an inner diameter of 0.35 mm was wound into a loop-shaped bundle.
A bundle having U-shapes at both ends was stored in a container, the ends were fixed with urethane resin, and then a part of the fixed U-shaped portion was cut to produce a cartridge. When this cartridge was inspected for leakage by applying air pressure from the outer surface of the hollow fiber membrane in water, leakage occurred between the hollow fiber membranes at the cut surface of the fixing resin. This was found to be due to the high packing density of the hollow fiber membrane in the part fixed with the fixing resin.
【００１６】[0016]
【発明の効果】この発明の中空糸膜シートは、取り扱い
やすいうえに、中空糸膜カートリッジを製造する際に目
止め工程が不要でしかも適度な中空糸膜の充填密度を得
ることができるので、信頼性の高いカートリッジを高い
収率で、低コストで作製するのに好適である。[Effects of the Invention] The hollow fiber membrane sheet of the present invention is easy to handle, does not require a sealing process when manufacturing a hollow fiber membrane cartridge, and can obtain an appropriate filling density of hollow fiber membranes. It is suitable for producing highly reliable cartridges at high yield and at low cost.
【図１】中空糸膜を折返して並べた状態を示す平面図で
ある。FIG. 1 is a plan view showing a state in which hollow fiber membranes are folded and arranged.
【図２】中空糸膜を引きそろえた状態を示す平面図であ
る。FIG. 2 is a plan view showing a state in which hollow fiber membranes are aligned.
【図３】この発明の中空糸膜シートの１例を示す部分平
面図である。FIG. 3 is a partial plan view showing an example of a hollow fiber membrane sheet of the present invention.
【図４】この発明の中空糸膜シートの他の例を示す部分
平面である。FIG. 4 is a partial plane view showing another example of the hollow fiber membrane sheet of the present invention.
【図５】この発明の中空糸膜シートの他の例を示す部分
平面図である。FIG. 5 is a partial plan view showing another example of the hollow fiber membrane sheet of the present invention.
【図６】この発明の中空糸膜シートの他の例を示す部分
平面図である。FIG. 6 is a partial plan view showing another example of the hollow fiber membrane sheet of the present invention.
【図７】この発明の中空糸膜シートをのりまき状に巻い
た状態の１例を示す斜視図である。FIG. 7 is a perspective view showing an example of a state in which the hollow fiber membrane sheet of the present invention is rolled up into a paste.
【図８】この発明の中空糸膜シートをのりまき状に巻い
た状態の他の例を示す斜視図である。FIG. 8 is a perspective view showing another example of the hollow fiber membrane sheet of the present invention rolled up into a paste.
【図９】この発明の中空糸膜シートを用いたカートリッ
ジの端部作製状態を示す断面図である。FIG. 9 is a sectional view showing a state in which the end portion of a cartridge is manufactured using the hollow fiber membrane sheet of the present invention.
１ 中空糸膜 ２ テープ ３ カートリッジケース ４ 熱圧着部 ５ 型 ６ 固定用樹脂 1 Hollow fiber membrane 2 Tape 3 Cartridge case 4 Thermocompression bonding part 5 type 6 Fixing resin
Claims (3)
可塑性樹脂の中空糸膜が、該中空糸膜の長手方向に対し
て一定間隔で熱圧着されてなる中空糸膜シート。1. A hollow fiber membrane sheet comprising a large number of thermoplastic resin hollow fiber membranes aligned in the same direction and thermocompression bonded at regular intervals in the longitudinal direction of the hollow fiber membranes.
定間隔で平行に熱圧着されている請求項１記載の中空糸
膜シート。2. The hollow fiber membrane sheet according to claim 1, wherein a large number of thermoplastic resin hollow fiber membranes are thermocompressed in parallel at regular intervals.
可塑性樹脂のテープ上で熱圧着固定されている請求項１
記載の中空糸膜シート[Claim 3] Claim 1, wherein a large number of thermoplastic resin hollow fiber membranes are fixed by thermocompression on a thermoplastic resin tape.
Hollow fiber membrane sheet as described
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7154491A JPH04310219A (en) | 1991-04-04 | 1991-04-04 | Hollow fiber membrane sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7154491A JPH04310219A (en) | 1991-04-04 | 1991-04-04 | Hollow fiber membrane sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04310219A true JPH04310219A (en) | 1992-11-02 |
Family
ID=13463790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7154491A Withdrawn JPH04310219A (en) | 1991-04-04 | 1991-04-04 | Hollow fiber membrane sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04310219A (en) |
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|---|---|---|---|---|
| JP2006055720A (en) * | 2004-08-18 | 2006-03-02 | Kitz Corp | Separation membrane module and its production method, and airtight test method of separation membrane module |
| WO2012036235A1 (en) | 2010-09-16 | 2012-03-22 | 三菱レイヨン株式会社 | Method for producing hollow fiber membrane sheet-like object, method for producing hollow fiber membrane module, and device for producing hollow fiber membrane sheet-like object |
| JP2012101179A (en) * | 2010-11-10 | 2012-05-31 | Mitsubishi Rayon Co Ltd | Method for manufacturing of hollow fiber membrane sheet and method for manufacturing of hollow fiber membrane module |
| JP2012101178A (en) * | 2010-11-10 | 2012-05-31 | Mitsubishi Rayon Co Ltd | Method of manufacturing hollow fiber membrane sheet and method of manufacturing hollow fiber membrane module |
| WO2012093546A1 (en) | 2011-01-04 | 2012-07-12 | 三菱レイヨン株式会社 | Hollow fiber membrane module |
| WO2015186490A1 (en) * | 2014-06-06 | 2015-12-10 | 三菱レイヨン株式会社 | Manufacturing method and manufacturing apparatus for hollow fiber membrane sheet, as well as hollow fiber membrane sheet |
| JP2017035675A (en) * | 2015-08-12 | 2017-02-16 | 宇部興産株式会社 | Manufacturing method of hollow fiber membrane module |
| WO2017069152A1 (en) * | 2015-10-20 | 2017-04-27 | 三菱レイヨン株式会社 | Method for manufacturing hollow-fiber membrane sheet and device for manufacturing hollow-fiber membrane sheet |
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-
1991
- 1991-04-04 JP JP7154491A patent/JPH04310219A/en not_active Withdrawn
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006055720A (en) * | 2004-08-18 | 2006-03-02 | Kitz Corp | Separation membrane module and its production method, and airtight test method of separation membrane module |
| US9283727B2 (en) | 2010-09-16 | 2016-03-15 | Mitsubishi Rayon Co., Ltd. | Method for producing hollow fiber membrane sheet-like object, method for producing hollow fiber membrane module, and device for producing hollow fiber membrane sheet-like object |
| WO2012036235A1 (en) | 2010-09-16 | 2012-03-22 | 三菱レイヨン株式会社 | Method for producing hollow fiber membrane sheet-like object, method for producing hollow fiber membrane module, and device for producing hollow fiber membrane sheet-like object |
| CN103210136A (en) * | 2010-09-16 | 2013-07-17 | 三菱丽阳株式会社 | Method for producing hollow fiber membrane sheet-like object, method for producing hollow fiber membrane module, and device for producing hollow fiber membrane sheet-like object |
| CN103210136B (en) * | 2010-09-16 | 2016-04-06 | 三菱丽阳株式会社 | The manufacturing installation of the manufacture method of hollow fiber membrane tablet, the manufacture method of hollow fiber membrane module and hollow fiber membrane tablet |
| JP2012101179A (en) * | 2010-11-10 | 2012-05-31 | Mitsubishi Rayon Co Ltd | Method for manufacturing of hollow fiber membrane sheet and method for manufacturing of hollow fiber membrane module |
| JP2012101178A (en) * | 2010-11-10 | 2012-05-31 | Mitsubishi Rayon Co Ltd | Method of manufacturing hollow fiber membrane sheet and method of manufacturing hollow fiber membrane module |
| WO2012093546A1 (en) | 2011-01-04 | 2012-07-12 | 三菱レイヨン株式会社 | Hollow fiber membrane module |
| US9403129B2 (en) | 2011-01-04 | 2016-08-02 | Mitsubishi Rayon Co., Ltd. | Hollow fiber membrane module |
| WO2015186490A1 (en) * | 2014-06-06 | 2015-12-10 | 三菱レイヨン株式会社 | Manufacturing method and manufacturing apparatus for hollow fiber membrane sheet, as well as hollow fiber membrane sheet |
| JP6004111B2 (en) * | 2014-06-06 | 2016-10-05 | 三菱レイヨン株式会社 | Method and apparatus for producing hollow fiber membrane sheet |
| CN106413861A (en) * | 2014-06-06 | 2017-02-15 | 三菱丽阳株式会社 | Manufacturing method and manufacturing apparatus for hollow fiber membrane sheet, as well as hollow fiber membrane sheet |
| CN106413861B (en) * | 2014-06-06 | 2021-04-30 | 三菱化学株式会社 | Method and apparatus for producing hollow fiber membrane sheet, and hollow fiber membrane sheet |
| JP2017035675A (en) * | 2015-08-12 | 2017-02-16 | 宇部興産株式会社 | Manufacturing method of hollow fiber membrane module |
| WO2017069152A1 (en) * | 2015-10-20 | 2017-04-27 | 三菱レイヨン株式会社 | Method for manufacturing hollow-fiber membrane sheet and device for manufacturing hollow-fiber membrane sheet |
| JPWO2017069152A1 (en) * | 2015-10-20 | 2017-10-19 | 三菱ケミカル株式会社 | Hollow fiber membrane sheet manufacturing method and hollow fiber membrane sheet manufacturing apparatus |
| CN111282445A (en) * | 2018-12-10 | 2020-06-16 | 郭绍华 | Hollow fiber membrane filament fixing method |
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