JPS63182498A - Production of ion changeable filter paper - Google Patents
Production of ion changeable filter paperInfo
- Publication number
- JPS63182498A JPS63182498A JP1212087A JP1212087A JPS63182498A JP S63182498 A JPS63182498 A JP S63182498A JP 1212087 A JP1212087 A JP 1212087A JP 1212087 A JP1212087 A JP 1212087A JP S63182498 A JPS63182498 A JP S63182498A
- Authority
- JP
- Japan
- Prior art keywords
- ion
- filter paper
- cellulose
- slurry
- paper
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 229920002678 cellulose Polymers 0.000 claims description 27
- 239000001913 cellulose Substances 0.000 claims description 27
- 239000002002 slurry Substances 0.000 claims description 15
- 238000005342 ion exchange Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007900 aqueous suspension Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- JVIPLYCGEZUBIO-UHFFFAOYSA-N 2-(4-fluorophenyl)-1,3-dioxoisoindole-5-carboxylic acid Chemical compound O=C1C2=CC(C(=O)O)=CC=C2C(=O)N1C1=CC=C(F)C=C1 JVIPLYCGEZUBIO-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920001425 Diethylaminoethyl cellulose Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- -1 diaminoethyl Chemical group 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 125000003010 ionic group Chemical group 0.000 description 1
- 210000001724 microfibril Anatomy 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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】
〔産業上の利用分野〕
本発明は、紙質改良剤としてミクロフィブリル化セルロ
ース又は、ミクロフィブリル化イオン交換性セルロース
誘導体を使用するイオン交換性ろ紙の製法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing ion-exchange filter paper using microfibrillated cellulose or a microfibrillated ion-exchangeable cellulose derivative as a paper quality improver.
現在一般に使用されているイオン交換性セルロース誘導
体は、繊維状のセルロースにイオン交換性基を導入した
ものであり、抄造すると紙になる能力を有している。以
下このようなイオン交換性セルロース誘導体を単にイオ
ン交換セルロースと呼ぶ、パルプ、リンターのようなセ
ルロース原料の叩解度を増大させると、ろ紙の透気度は
減少し、粒子捕捉性は増大する。しかしイオン交換セル
ロースを叩解しても繊維長が小さくなる効果の方が太き
（、紙力強度の有るイオン交換ろ紙を作ることは困難で
ある。透気度の調整方法には、このほか抄紙後のろ紙を
２次加工する方法があるが、これは単に目をつめるだけ
で、みかけの透気度は減少するが、ろ過動率が低下する
という問題がある。Ion-exchangeable cellulose derivatives commonly used at present are obtained by introducing ion-exchangeable groups into fibrous cellulose, and have the ability to become paper when made. Hereinafter, such ion-exchangeable cellulose derivatives will be simply referred to as ion-exchanged cellulose.If the degree of beating of cellulose raw materials such as pulp and linter is increased, the air permeability of the filter paper will decrease and the particle-trapping ability will increase. However, even if ion-exchange cellulose is beaten, the effect of reducing the fiber length is greater (and it is difficult to make ion-exchange filter paper with paper strength. There is a method of secondary processing of the filter paper, but this method simply closes the eyes, which reduces the apparent air permeability, but has the problem of lowering the filtration rate.
発明者らは、イオン交換セルロースから製造したろ紙の
粒子捕捉性を向上させる手段として、セルロース或いは
イオン交換セルロースのミクロフィブリル化物をスラリ
ーに添加し抄紙するのが有効であることをみとめ、本発
明に到達した。The inventors have found that it is effective to add cellulose or a microfibrillated product of ion-exchanged cellulose to a slurry in paper making as a means to improve the particle-trapping properties of filter paper manufactured from ion-exchanged cellulose, and have developed the present invention. Reached.
即ち、本発明は、イオン交換セルロースを必須成分とし
て含有するスラリーを抄造してイオン交換性ろ紙を製造
するにあたり、該スラリーにセルロースのミクロフィブ
リル化物又はイオン交換性セルロース誘導体のミクロフ
ィブリル化物を、スラリー固形分中に占める割合が０．
５〜ＩＯ重量％となるよう添加することを特徴とするイ
オン交換性ろ紙の製法に関するものである。That is, in the present invention, when manufacturing an ion-exchange filter paper by making a slurry containing ion-exchanged cellulose as an essential component, a microfibrillated product of cellulose or a microfibrillated product of an ion-exchangeable cellulose derivative is added to the slurry. The proportion in the solid content is 0.
The present invention relates to a method for producing ion-exchange filter paper characterized by adding 5 to IO weight %.
本発明に使用するイオン交換セルロースとは、パルプ、
リンク−のような繊維状セルロース原料に固体のままイ
オン性基を導入して得られるもので、スルホエチル化物
、スルホメチル化物、リン酸化物、カルボキシメチル化
物、トリエチルアミノ化物、ジエチルアミノエチル化物
、アミノエチル化物、ポリエチレンイミノ化物、アミノ
ベンジル化物、グアニドエチル化物などがある。The ion-exchanged cellulose used in the present invention includes pulp,
It is obtained by introducing ionic groups into a fibrous cellulose raw material such as Link- while it is solid, and includes sulfoethylated products, sulfomethylated products, phosphoric oxides, carboxymethylated products, triethylaminated products, diethylaminoethylated products, and aminoethylated products. , polyethyleneiminated products, aminobenzylated products, guanidoethylated products, etc.
セルロースのミクロフィブリル化物又はイオン交換セル
ロースのミクロフィブリル化物とは、セルロース又はイ
オン交換セルロースを次の方法で処理して得たものであ
る。即ち、繊維状のセルロース又はイオン交換セルロー
ス繊維を１〜１０重景％垂蓋の水性スラリーとし、この
スラリーを、少なくとも２００ ｋｇ／ｃｎ＋”の圧力
差をその前後に有する小径オリフィスを通過させ、高速
で器壁に衝突させて急速に減速し、これにより剪断力を
与えるように設計された循環装置内をくりかえし循環さ
せると、繊維がミクロフィブリル単位の小さな径を有す
るものの集合体に分割されるものである。Ｇａｕｌｉｎ
社の均質化装置は本処理に適した装置である（特公昭６
０−３８５５号公報参照）。Microfibrillated cellulose or microfibrillated ion-exchanged cellulose is obtained by treating cellulose or ion-exchanged cellulose by the following method. That is, fibrous cellulose or ion-exchanged cellulose fibers are made into an aqueous slurry of 1 to 10% by weight, and this slurry is passed through a small-diameter orifice having a pressure difference of at least 200 kg/cn+" across it, and then heated at high speed. When the fibers are repeatedly circulated through a circulation device designed to collide with the container wall and rapidly decelerate, thereby applying shearing force, the fibers are divided into aggregates with small diameters such as microfibril units. Gaulin
The company's homogenization equipment is suitable for this process (Special Public Interest
(See Publication No. 0-3855).
このようにして、水質懸濁液の形で得られたセルロース
のミクロフィブリル化物又はイオン交換セルロースのミ
クロフィブリル化物を、抄紙のためのスラリーにスラリ
ー固形分中に占める割合が０．５〜１０重量％となるよ
う添加する。In this way, the microfibrillated cellulose or ion-exchanged cellulose microfibrillated product obtained in the form of an aqueous suspension is added to the slurry for papermaking in a proportion of 0.5 to 10% by weight in the solid content of the slurry. %.
０．５重量％以下では添加効果が少な（，１０重量％以
上ではろ水性が悪（な・す、抄紙に時間がかかる。If it is less than 0.5% by weight, the effect of addition is small (and if it is more than 10% by weight, the water freeness is poor), and it takes time to make paper.
本発明の方法に用いることにより、イオン交換容量及び
抄紙速度をあまり変化させずに粒子捕捉性を向上させ、
また同時に紙力も改良することができる。By using the method of the present invention, particle trapping performance is improved without significantly changing ion exchange capacity and papermaking speed,
At the same time, paper strength can also be improved.
以下に実施例をあげて本発明を説明するが、本発明はこ
れにより限定されるものではない。The present invention will be explained below with reference to Examples, but the present invention is not limited thereto.
比較例−１
ジエチルアミノエチルセルロースにチリン化学工業■製
、平均繊維長６＋＋＋ｍ）を軽く叩解し、カナダ標準ろ
氷炭３５０ ｍに調整したこのものを０．２％スラリー
とし、ＴＡＰＰＩ標準形抄紙器（２５ｃｍＸ２０ｃ＋ａ
、 ８０メツシユ）を用いて抄造し、坪量６０ｇ／ｍ”
のろ紙を得た。ろ紙の透気度は、６ｓｅｃ／１００！ｌ
１１ａｉｒ・１０枚であった。Comparative Example-1 Diethylaminoethylcellulose (manufactured by Chirin Kagaku Kogyo ■, average fiber length 6+++m) was lightly beaten and adjusted to Canadian standard filtered charcoal 350m to make a 0.2% slurry, and the resulting slurry was made into a 0.2% slurry using a TAPPI standard paper machine (25cm x 20c+a).
, 80 mesh) with a basis weight of 60 g/m"
Obtained filter paper. The air permeability of the filter paper is 6sec/100! l
It was 11 air and 10 tickets.
比較例−２
比較例−１のジアミノエチルセルローススラリーに、水
溶性添加剤ポリストロン７０５（紙の改質剤）を固形分
に占める割合が１．０％となるよう添加し、抄紙したと
ころ坪量６０ｇ／ｎ＋”のろ紙を得た。透気度は６ｓｅ
ｃ／１００Ｉｄａｉｒ・１０枚であった。Comparative Example-2 The water-soluble additive Polystron 705 (paper modifier) was added to the diaminoethyl cellulose slurry of Comparative Example-1 so that the proportion of the solid content was 1.0%, and paper was made. A filter paper of 60g/n+" was obtained.The air permeability was 6se.
It was c/100Idair and 10 pieces.
実施例−１
比較例−１の抄紙スラリーとしたジアミノエチルセルロ
ースに、２％の水性懸濁液としたジアミノエチルセルロ
ースをＧａｕｌｉｎ社均質化装置で、４２０ ｋｇ／ｃ
ｍ”の圧力で３０回処理したものを固形分中１重量％含
有量となるよう添加し、比較例−１と同様に抄紙し、坪
量６０ｇ／ｍ”のろ紙を得た。透気度は９ｓｅｃ／１０
０ｍｊ！ ａｉｒ−１０枚であった。Example-1 A 2% aqueous suspension of diaminoethylcellulose was added to the papermaking slurry of Comparative Example-1 at 420 kg/c using a Gaulin homogenizer.
The filter paper treated 30 times at a pressure of m'' was added to give a solid content of 1% by weight, and paper was made in the same manner as in Comparative Example 1 to obtain a filter paper with a basis weight of 60 g/m''. Air permeability is 9sec/10
0mj! Air-10 pieces.
Claims (1)
るスラリーを抄造してイオン交換性ろ紙を製造するにあ
たり、該スラリーにセルロースのミクロフィブリル化物
又はイオン交換性セルロース誘導体のミクロフィブリル
化物を、スラリー固形分中に占める割合が０．５〜１０
重量％となるよう添加することを特徴とするイオン交換
性ろ紙の製法。When producing ion-exchange filter paper by paper-making a slurry containing an ion-exchangeable cellulose derivative as an essential component, a microfibrillated product of cellulose or a microfibrillated product of an ion-exchangeable cellulose derivative is added to the slurry in the solid content of the slurry. The proportion is 0.5-10
A method for producing ion-exchange filter paper, characterized in that the amount of ion-exchange filter paper is added in a proportion by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1212087A JPH0832995B2 (en) | 1987-01-21 | 1987-01-21 | Ion exchange filter paper manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1212087A JPH0832995B2 (en) | 1987-01-21 | 1987-01-21 | Ion exchange filter paper manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63182498A true JPS63182498A (en) | 1988-07-27 |
| JPH0832995B2 JPH0832995B2 (en) | 1996-03-29 |
Family
ID=11796688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1212087A Expired - Lifetime JPH0832995B2 (en) | 1987-01-21 | 1987-01-21 | Ion exchange filter paper manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0832995B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011183329A (en) * | 2010-03-10 | 2011-09-22 | Moriyama Yuko | Filter medium and method for manufacturing the same |
| JP2019214806A (en) * | 2018-06-12 | 2019-12-19 | 王子ホールディングス株式会社 | Sheet and manufacturing method of sheet |
-
1987
- 1987-01-21 JP JP1212087A patent/JPH0832995B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011183329A (en) * | 2010-03-10 | 2011-09-22 | Moriyama Yuko | Filter medium and method for manufacturing the same |
| JP2019214806A (en) * | 2018-06-12 | 2019-12-19 | 王子ホールディングス株式会社 | Sheet and manufacturing method of sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0832995B2 (en) | 1996-03-29 |
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