JPH0832995B2 - Ion exchange filter paper manufacturing method - Google Patents
Ion exchange filter paper manufacturing methodInfo
- Publication number
- JPH0832995B2 JPH0832995B2 JP1212087A JP1212087A JPH0832995B2 JP H0832995 B2 JPH0832995 B2 JP H0832995B2 JP 1212087 A JP1212087 A JP 1212087A JP 1212087 A JP1212087 A JP 1212087A JP H0832995 B2 JPH0832995 B2 JP H0832995B2
- Authority
- JP
- Japan
- Prior art keywords
- cellulose
- ion
- filter paper
- 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.)
- Expired - Lifetime
Links
Landscapes
- Paper (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Filtering Materials (AREA)
- Treatment Of Water By Ion Exchange (AREA)
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。TECHNICAL 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 improving agent.
〔従来の技術および問題点〕 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大
きく、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、ろ過効率が低下す
るという問題がある。[Prior Art and Problems] Ion-exchangeable cellulose derivatives currently generally used are those in which an ion-exchangeable group is introduced into fibrous cellulose, and have the ability to be made into paper when made into paper.
Hereinafter, such an ion-exchangeable cellulose derivative is simply referred to as ion-exchange cellulose. When the beating degree of a cellulose raw material such as pulp or linter is increased, the air permeability of the filter paper is decreased and the particle trapping property is increased. However, even if the ion-exchanged cellulose is beaten, the effect of reducing the fiber length is greater, and it is difficult to produce an ion-exchange filter paper having strong paper strength. In addition to the method of adjusting the air permeability, there is a method of secondary processing of the filter paper after paper making, but this is said that just by closing the eyes, the apparent air permeability is reduced, but the filtration efficiency is reduced. There's a problem.
発明者らは、イオン交換セルロースから製造したろ紙
を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-exchange cellulose to the slurry to make paper as a means for improving the particle trapping property of the filter paper produced from the ion-exchange cellulose. Arrived
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.
5〜10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に関するものである。本発明に使用
するイオン交換セルロースとは、パルプ、リンターのよ
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。That is, the present invention, in producing an ion-exchange filter paper by making a slurry containing ion exchange cellulose as an essential component, in the slurry, a microfibrillated product of cellulose or a microfibrillated product of an ion-exchangeable cellulose derivative, a slurry. 0% of solid content.
The present invention relates to a method for producing an ion-exchange filter paper, which is characterized by adding 5 to 10% by weight. The ion exchange cellulose used in the present invention is obtained by introducing an ionic group as it is into a fibrous cellulose raw material such as pulp and linter, and is a sulfoethylated product, a sulfomethylated product, a phosphorus oxide, a carboxymethylated product. , Triethylamino compound, diethylaminoethyl compound, aminoethyl compound, polyethyleneimino compound, aminobenzyl compound, guanidoethyl compound and the like.
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重量％濃度の水性スラリーとし、この
スラリーを、少なくとも200kg/cm2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60−3855号公報参
照）。The microfibrillated product of cellulose or the microfibrillated product of ion exchange cellulose is obtained by treating cellulose or ion exchange cellulose by the following method. That is, a fibrous cellulose or ion-exchange cellulose fiber is made into an aqueous slurry having a concentration 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 / cm 2 before and after, and a high-speed vessel wall. When repeatedly circulated in a circulation device designed to impinge on and rapidly decelerate, thereby imparting a shearing force, the fibers are divided into aggregates having a small diameter of microfibril unit. The homogenizer manufactured by Gaulin is suitable for this treatment (see Japanese Patent Publication No. 60-3855).
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。0.5重量％以下では添加効果が少なく、10重
量％以上ではろ水性が悪くなり、抄紙に時間がかかる。In this way, the cellulose microfibrillated product obtained in the form of an aqueous suspension or the ion-exchanged cellulose microfibrillated product, the proportion of the slurry for papermaking in the slurry solids is 0.5 to 10% by weight. To be added. If it is 0.5% by weight or less, the effect of addition is small, and if it is 10% by weight or more, the drainage property becomes poor and it takes time to make paper.
本発明の方法を用いることにより、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。又、本発
明品はセルロース又はセルロース誘導体が微細にフィブ
リル化されて添加されているため、キレート構造を形成
し易く、金属イオンを選択的に吸着する効果も有る。By using the method of the present invention, it is possible to improve the particle trapping property without changing the ion exchange capacity and the papermaking speed so much, and at the same time, improve the paper strength. In addition, since the product of the present invention contains cellulose or a cellulose derivative finely fibrillated and added, it easily forms a chelate structure and has an effect of selectively adsorbing metal ions.
以下に実施例に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 described 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（ニチリン化学工業
（株）製、平均繊維長6mm）を軽く叩解し、カナダ標準
ろ水度350ml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（25cm×25cm、80メッシュ）を用い
て抄造し、坪量60g/m2のろ紙を得た。ろ紙の透気度は、
6sec/100ml air・10枚であった。Comparative Example-1 Diethylaminoethyl cellulose (manufactured by Nichirin Chemical Co., Ltd., average fiber length 6 mm) was lightly beaten to prepare a 0.2% slurry prepared by adjusting the Canadian standard freeness to 350 ml,
Papermaking was performed using a TAPPI standard paper machine (25 cm × 25 cm, 80 mesh) to obtain a filter paper having a basis weight of 60 g / m 2 . The air permeability of the filter paper is
6sec / 100ml air, 10 sheets.
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/m2のろ紙を得た。透気度は6sec/100ml air・
10枚であった。Comparative Example-2 In the diaminoethyl cellulose slurry of Comparative Example-1,
The water-soluble additive Polystron 705 (paper modifier) was added so that the ratio of solid content in the solid content was 1.0%, and the paper was made to obtain a filter paper having a basis weight of 60 g / m 2 . Air permeability is 6sec / 100ml air
It was 10 sheets.
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、420kg/cm2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/m2のろ紙を
得た。透気度は9sec/100ml air・10枚であった。Example-1 Diaminoethyl cellulose as a papermaking slurry of Comparative Example-1 was mixed with diaminoethyl cellulose as a 2% aqueous suspension in a Gaulin homogenizer at a pressure of 420 kg / cm < 2 >.
The processed material was added so as to have a content of 1% by weight in solid content, and paper was made in the same manner as in Comparative Example-1 to obtain a filter paper having a basis weight of 60 g / m 2 . The air permeability was 9 sec / 100 ml air, 10 sheets.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｄ２１Ｈ 15/02 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display part D21H 15/02
Claims (1)
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
0.5〜10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。1. When making a slurry containing an ion-exchangeable cellulose derivative as an essential component to produce an ion-exchangeable filter paper, a cellulose microfibrillated product or an ion-exchangeable cellulose derivative microfibrillated product is added to the slurry, The ratio of the solid content of the slurry
A method for producing an ion-exchange filter paper, which is characterized by adding 0.5 to 10% 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 JPS63182498A (en) | 1988-07-27 |
| JPH0832995B2 true 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023181451A1 (en) | 2022-03-23 | 2023-09-28 | 帝人株式会社 | Method for quantifying nicotinamide adenine dinucleotide (nad+) or nicotinamide mononucleotide (nmn), and kit and paper filter for performing said method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5566731B2 (en) * | 2010-03-10 | 2014-08-06 | 森山 裕子 | Method for producing filter media |
| JP7119609B2 (en) * | 2018-06-12 | 2022-08-17 | 王子ホールディングス株式会社 | Sheet and sheet manufacturing method |
-
1987
- 1987-01-21 JP JP1212087A patent/JPH0832995B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023181451A1 (en) | 2022-03-23 | 2023-09-28 | 帝人株式会社 | Method for quantifying nicotinamide adenine dinucleotide (nad+) or nicotinamide mononucleotide (nmn), and kit and paper filter for performing said method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63182498A (en) | 1988-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE68917069T2 (en) | Dry strength additive for paper. | |
| DE69206735T2 (en) | Papermaking process | |
| US4969976A (en) | Pulp dewatering process | |
| US5338406A (en) | Dry strength additive for paper | |
| DE60007556T2 (en) | PRODUCTION OF PAPER AND CARDBOARD | |
| DE69207436T2 (en) | POLYSILICATE MICROGELS AS RESTRAINT / DEWATERING AIDS IN PAPER PRODUCTION | |
| JPH11500482A (en) | Cellulose particles, production method thereof and use thereof | |
| US5266164A (en) | Papermaking process with improved drainage and retention | |
| DE3644072A1 (en) | WEIGHED PAPER | |
| DE60209700T2 (en) | FILLER AND METHOD FOR ITS MANUFACTURE | |
| DE19632079A1 (en) | Improved process for the production of paper | |
| DE60130451T2 (en) | PAPER FIBROUS AND FLOCK AGENTS CONTAINING ACOURIC AQUEOUS ALUMINUM OXIDOL | |
| US4178205A (en) | High strength non-woven fibrous material | |
| US3139373A (en) | Process for the internal sizing of paper with a salt of a substituted succinic acid | |
| JP2976485B2 (en) | Method for producing fine fiberized pulp | |
| WO1993015271A1 (en) | Improved process for production of paper | |
| CN113062146A (en) | Antibacterial cultural paper and manufacturing method thereof | |
| JPH0832995B2 (en) | Ion exchange filter paper manufacturing method | |
| DE4436317A1 (en) | Prodn. of paper with improved screen draining and retention | |
| DE69931343T2 (en) | MIXTURE OF SILKY ACID AND ACIDOIL TO A MICROPARTICLE SYSTEM FOR PAPER MANUFACTURE | |
| JP2002526681A (en) | Acidic colloids in fine particle systems used in papermaking | |
| KR102570466B1 (en) | Increased Drainage Performance in Papermaking Systems Using Microfibrillated Cellulose | |
| KR100496704B1 (en) | Process for the production of paper using cationic starch | |
| PT700473E (en) | PAPER PRODUCTION PROCESS | |
| JP2000027092A (en) | Neutralized paper |