JPH11221451A - Separation membrane containing antibacterial material and its production - Google Patents
Separation membrane containing antibacterial material and its productionInfo
- Publication number
- JPH11221451A JPH11221451A JP3983198A JP3983198A JPH11221451A JP H11221451 A JPH11221451 A JP H11221451A JP 3983198 A JP3983198 A JP 3983198A JP 3983198 A JP3983198 A JP 3983198A JP H11221451 A JPH11221451 A JP H11221451A
- Authority
- JP
- Japan
- Prior art keywords
- separation membrane
- antibacterial material
- resin
- membrane
- antibacterial
- 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- Withdrawn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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、抗菌性材料を含む
分離膜及びその製造方法に関する。[0001] The present invention relates to a separation membrane containing an antibacterial material and a method for producing the same.
【０００２】[0002]
【従来の技術】従来より、樹脂材料に微細な孔が形成さ
れ、流体中の特定成分を分離可能とした分離膜が利用さ
れている。2. Description of the Related Art Conventionally, there has been used a separation membrane in which fine holes are formed in a resin material so that a specific component in a fluid can be separated.
【０００３】分離膜の製造方法としては、特開昭５４−
２６２８３号公報（ポリスルホン半透膜の製造方法）、
特開昭５７−３５９０６号公報（ポリスルホン系選択透
過性膜の製造法）、特開昭５８−１１４７０２号公報
（ポリスルホン中空糸膜およびその製法）を参照するこ
とができる。A method for producing a separation membrane is disclosed in
26283 (a method for producing a polysulfone semipermeable membrane),
JP-A-57-35906 (a method for producing a polysulfone-based selectively permeable membrane) and JP-A-58-114702 (a polysulfone hollow fiber membrane and a method for producing the same) can be referred to.
【０００４】このような分離膜は、膜状あるいは中空糸
膜状に形成され、一利用形態として例えば浄水器に利用
されている。[0004] Such a separation membrane is formed in the form of a membrane or a hollow fiber membrane, and is used in one form, for example, in a water purifier.
【０００５】一般に、このような浄水器は水道水等の水
質を向上させ良質なる飲料水を得る手段として用いられ
ているが、この場合、例えば活性炭により低分子成分の
除去を、分離膜により錆や菌等の除去を行なう構成とな
っている。In general, such a water purifier is used as a means for improving the quality of tap water or the like to obtain high-quality drinking water. In this case, for example, the removal of low-molecular components by activated carbon and the removal of rust by a separation membrane are performed. It is configured to remove bacteria and bacteria.
【０００６】[0006]
【発明が解決しようとする課題】しかし、従来の分離膜
は、抗菌あるいは殺菌性能を有しておらず、分離膜に付
着した雑菌等の繁殖を防止することが困難である。この
ため、殺菌を必要とする場合は、浄水器自体に銀イオン
溶出物などの殺菌機能を有する装置・部品等を付加する
ことが行なわれていた。However, conventional separation membranes do not have antibacterial or bactericidal properties, and it is difficult to prevent the propagation of various bacteria and the like adhering to the separation membrane. For this reason, when sterilization is required, devices or parts having a sterilizing function such as silver ion eluate have been added to the water purifier itself.
【０００７】本発明は上記従来技術の問題を解決するた
めになされたもので、その目的とするところは、抗菌あ
るいは殺菌性能を分離膜自体に備えさせることにより、
分離膜に付着した雑菌等の滅菌・殺菌を可能とし、ま
た、この分離膜を浄水器等の機器に利用した場合に容易
に抗菌機能を付与することを可能とする抗菌性材料を含
む分離膜及びその製造方法を提供することにある。The present invention has been made in order to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide an antibacterial or bactericidal property to the separation membrane itself,
A separation membrane containing an antibacterial material that enables sterilization and sterilization of various bacteria attached to the separation membrane, and that can easily impart an antibacterial function when the separation membrane is used for equipment such as a water purifier. And a method for manufacturing the same.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に本発明にあっては、樹脂材料に微細な孔を形成して流
体中の特定成分を分離可能とした分離膜において、前記
樹脂材料中に抗菌性材料を分散含有させたことを特徴と
する。According to the present invention, there is provided a separation membrane in which minute holes are formed in a resin material so that a specific component in a fluid can be separated. An antimicrobial material is dispersed and contained therein.
【０００９】また、前記抗菌性材料は殺菌作用を備えた
酸化物であることも好適である。It is also preferable that the antibacterial material is an oxide having a bactericidal action.
【００１０】また、抗菌性材料を含む分離膜の製造方法
にあっては、分離膜の材料となる樹脂材料のドープ原液
に抗菌性材料を予め添加・混合し、前記ドープ原液から
膜状物を成膜したことを特徴とする。In a method for producing a separation membrane containing an antibacterial material, an antibacterial material is added and mixed in advance to a dope solution of a resin material to be a material of the separation membrane, and a film-like material is formed from the dope stock solution. It is characterized by being formed into a film.
【００１１】[0011]
【発明の実施の形態】（実施の形態１）本発明を適用し
た第１の実施の形態における分離膜の製造方法を以下に
説明する。分離膜の基本的な製造方法は上記した特開昭
５４−２６２８３号公報特、開昭５７−３５９０６号公
報、特開昭５８−１１４７０２号公報等を参照すること
ができるので、本発明の特徴的な部分のみを説明する。(Embodiment 1) A method for manufacturing a separation membrane according to a first embodiment of the present invention will be described below. The basic method for producing a separation membrane can be referred to JP-A-54-26283, JP-A-57-35906, JP-A-58-114702, and the like. Only the typical part will be described.
【００１２】本発明を適用した製造方法では、分離膜を
製造する際に用いる樹脂材料のドープ原液（均一溶液）
に、抗菌性素材をあらかじめ添加・混合し、その後に製
膜を行なう。In the manufacturing method to which the present invention is applied, a dope stock solution (homogeneous solution) of a resin material used for manufacturing a separation membrane
Then, an antibacterial material is added and mixed in advance, and then a film is formed.
【００１３】抗菌性素材としては、ＺｎＯ，ＭｇＯ等の
酸化物を添加することが可能であり、抗菌性素材の添加
量としては、分離膜のドープ原液全体に対して１〜６０
重量％、好ましくは５〜３０重量％添加することが望ま
しい。添加量がこれより少ないと菌に対する殺菌作用を
発現せず、また添加量が多い場合には、膜の形状を維持
（製膜不可）できない。As the antibacterial material, oxides such as ZnO and MgO can be added, and the amount of the antibacterial material is 1 to 60 with respect to the whole dope solution of the separation membrane.
%, Preferably 5 to 30% by weight. If the addition amount is less than this, no bactericidal action against bacteria will not be exhibited, and if the addition amount is large, the membrane shape cannot be maintained (film formation is impossible).
【００１４】分離膜の素材としては、ポリスルホン、ポ
リエーテルスルホン、ポリエーテルイミドなど、一般的
に分離膜の素材として用いられるものならば何でも構わ
ない。またその形状としては、平膜状のものでも構わな
いし、中空糸膜状のものでも良い。The material for the separation membrane may be any material generally used as a material for the separation membrane, such as polysulfone, polyethersulfone, and polyetherimide. Further, the shape may be a flat membrane shape or a hollow fiber membrane shape.
【００１５】このようにして、抗菌性素材が分離膜中に
分散・充填されている抗菌性素材を含む分離膜を形成す
る。In this way, a separation membrane containing the antibacterial material in which the antibacterial material is dispersed and filled in the separation membrane is formed.
【００１６】そして、この抗菌性素材を含む分離膜を浄
水器に利用した場合には、分離膜自体が濾過対象流体と
なる水道水等の雑菌に対する殺菌作用を備え、従って、
従来技術のように浄水器自体に銀イオン溶出物などの殺
菌機能を有する装置・部品等を付加することが不要とな
り、浄水器の構成の簡素化、部品点数の削減を図ること
が可能となった。When a separation membrane containing this antibacterial material is used in a water purifier, the separation membrane itself has a bactericidal action against various bacteria such as tap water which is a fluid to be filtered.
It is not necessary to add a device or part having a sterilizing function such as a silver ion eluate to the water purifier itself as in the prior art, thereby simplifying the structure of the water purifier and reducing the number of parts. Was.
【００１７】尚、分離膜の利用形態として浄水器に限定
されるものではなく、その他流体中の特定成分の分離を
行なう膜分離装置等に適宜利用可能なものである。The use of the separation membrane is not limited to a water purifier, but may be suitably applied to a membrane separation device for separating a specific component in a fluid.
【００１８】（実施の形態２）次に、第２の実施の形態
として抗菌性素材を含む分離膜のより具体的な製造方法
を以下に説明する。(Embodiment 2) Next, as a second embodiment, a more specific method for producing a separation membrane containing an antibacterial material will be described below.
【００１９】分離膜を製造する際に用いるドープ原液と
して Ｎ，Ｎ−ジメチルホルムアミド８３．２重量部、
これに抗菌性素材としてドデシルベンゼンスルホン酸ナ
トリウムを０．４重量部と酸化亜鉛２．８重量部を加
え、分散させた。その後、ポリスルホン１３．６重量部
を添加・混合した。As a dope stock solution used for producing a separation membrane, 83.2 parts by weight of N, N-dimethylformamide
To this, 0.4 parts by weight of sodium dodecylbenzenesulfonate and 2.8 parts by weight of zinc oxide as antibacterial materials were added and dispersed. Thereafter, 13.6 parts by weight of polysulfone was added and mixed.
【００２０】次に、得られた溶液を二重管ノズルを用い
て水中に吐出し、凝固させ、及び微細な孔となる部分の
抽出を行ない中空糸膜を製膜する。その後、水で十分に
洗浄した。Next, the obtained solution is discharged into water using a double tube nozzle, solidified, and a portion that becomes a fine hole is extracted to form a hollow fiber membrane. Then, it was sufficiently washed with water.
【００２１】（実験例１）上記のようにして得られた中
空糸膜を密閉容器に入れ、中空糸膜体積の４倍容量の水
道水を加えた。これに大腸菌を約７．０×１０6 個／ｍ
ｌ植え付けた。(Experimental Example 1) The hollow fiber membrane obtained as described above was placed in a closed vessel, and tap water having a volume four times the volume of the hollow fiber membrane was added. About 7.0 × 10 6 E. coli / m
I planted.
【００２２】この密閉容器を３７℃で毎分１００回の条
件で振盪した。そして、経時的に無菌サンプリングを行
ない、溶液中に含まれる大腸菌の数を測定した。その結
果を表１に示す。This sealed container was shaken at 37 ° C. at 100 times per minute. Then, aseptic sampling was performed over time to measure the number of E. coli contained in the solution. Table 1 shows the results.
【００２３】（比較例１）実施の形態２の製造過程にお
いて、ドデシルベンゼンスルホン酸ナトリウムおよび酸
化亜鉛を添加しないで分離膜を調製し、同様に大腸菌の
振盪実験を行なった。その結果を表１に示す。(Comparative Example 1) In the production process of Embodiment 2, a separation membrane was prepared without adding sodium dodecylbenzenesulfonate and zinc oxide, and a shaking test of Escherichia coli was similarly performed. Table 1 shows the results.
【００２４】[0024]
【表１】 この表１より、本発明を適用した抗菌性素材を含む実験
例１の分離膜には大腸菌の殺菌作用が認められ、また、
抗菌性素材を含まない比較例１では大腸菌の増加繁殖が
発生した。[Table 1] According to Table 1, the separation membrane of Experimental Example 1 containing the antibacterial material to which the present invention was applied showed a bactericidal action of Escherichia coli.
In Comparative Example 1 containing no antibacterial material, increased propagation of Escherichia coli occurred.
【００２５】[0025]
【発明の効果】上記発明の実施の形態に説明されたよう
に、この抗菌性素材を含む分離膜自体に濾過対象流体と
なる水道水等の雑菌に対する殺菌作用を備えることが可
能となる。As described in the embodiment of the present invention, the separation membrane itself containing the antibacterial material can have a bactericidal action against various bacteria such as tap water as a fluid to be filtered.
【００２６】また、この抗菌性素材を含む分離膜を浄水
器等の機器に利用した場合には、従来技術のように機器
自体に銀イオン溶出物などの殺菌機能を有する装置・部
品等を付加することが不要となり、機器の構成の簡素
化、部品点数の削減を図ることが可能となった。When the separation membrane containing the antibacterial material is used in a device such as a water purifier, a device / part having a sterilizing function such as a silver ion eluate is added to the device itself as in the prior art. This makes it unnecessary to simplify the configuration of the device and reduce the number of parts.
Claims (3)
特定成分を分離可能とした分離膜において、 前記樹脂材料中に抗菌性材料を分散含有させたことを特
徴とする分離膜。1. A separation membrane in which fine pores are formed in a resin material to allow a specific component in a fluid to be separated, wherein an antimicrobial material is dispersed and contained in the resin material.
物であることを特徴とする請求項１に記載の分離膜。2. The separation membrane according to claim 1, wherein the antibacterial material is an oxide having a bactericidal action.
液に抗菌性材料を予め添加・混合し、 前記ドープ原液から膜状物を成膜したことを特徴とする
抗菌性材料を含む分離膜の製造方法。3. A separation membrane containing an antibacterial material, wherein an antibacterial material is added and mixed in advance to a stock solution of a resin material to be a material of the separation membrane, and a film is formed from the stock solution of the dope. Manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3983198A JPH11221451A (en) | 1998-02-06 | 1998-02-06 | Separation membrane containing antibacterial material and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3983198A JPH11221451A (en) | 1998-02-06 | 1998-02-06 | Separation membrane containing antibacterial material and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11221451A true JPH11221451A (en) | 1999-08-17 |
Family
ID=12563927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3983198A Withdrawn JPH11221451A (en) | 1998-02-06 | 1998-02-06 | Separation membrane containing antibacterial material and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11221451A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100846395B1 (en) | 2003-02-18 | 2008-07-15 | 주식회사 코오롱 | Antimicrobial hollow fiber membrane and method of preparing the same |
| US20100178489A1 (en) * | 2007-07-12 | 2010-07-15 | Shinya Nishiyama | Composite semipermeable membrane |
| JP2011500306A (en) * | 2007-10-10 | 2011-01-06 | ポリマーズ シーアールシー リミテッド | Antibacterial membrane |
| CN110496542A (en) * | 2018-05-03 | 2019-11-26 | 帕克维塔埃(私人)有限公司 | Hollow-fibre membrane for liquid filtering |
| RU2803126C2 (en) * | 2018-05-03 | 2023-09-06 | Пак Витаэ (Прайвит) Лимитед | Hollow fibre membrane for liquid filtration |
-
1998
- 1998-02-06 JP JP3983198A patent/JPH11221451A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100846395B1 (en) | 2003-02-18 | 2008-07-15 | 주식회사 코오롱 | Antimicrobial hollow fiber membrane and method of preparing the same |
| US20100178489A1 (en) * | 2007-07-12 | 2010-07-15 | Shinya Nishiyama | Composite semipermeable membrane |
| US8672142B2 (en) * | 2007-07-12 | 2014-03-18 | Nitto Denko Corporation | Composite semipermeable membrane |
| JP2011500306A (en) * | 2007-10-10 | 2011-01-06 | ポリマーズ シーアールシー リミテッド | Antibacterial membrane |
| CN110496542A (en) * | 2018-05-03 | 2019-11-26 | 帕克维塔埃(私人)有限公司 | Hollow-fibre membrane for liquid filtering |
| JP2019205996A (en) * | 2018-05-03 | 2019-12-05 | Pak Vitae Private Ltd | Hollow fiber membrane for filtering liquid |
| EP3563928B1 (en) * | 2018-05-03 | 2023-07-05 | Pak Vitae (Private) Limited | Hollow fiber membrane for filtration of liquids |
| RU2803126C2 (en) * | 2018-05-03 | 2023-09-06 | Пак Витаэ (Прайвит) Лимитед | Hollow fibre membrane for liquid filtration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20050510 |