JPH06280179A - Paper manufacturing method - Google Patents
Paper manufacturing methodInfo
- Publication number
- JPH06280179A JPH06280179A JP6829093A JP6829093A JPH06280179A JP H06280179 A JPH06280179 A JP H06280179A JP 6829093 A JP6829093 A JP 6829093A JP 6829093 A JP6829093 A JP 6829093A JP H06280179 A JPH06280179 A JP H06280179A
- Authority
- JP
- Japan
- Prior art keywords
- pulp
- paper
- xylanase
- beating
- producing 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.)
- Pending
Links
Landscapes
- Paper (AREA)
Abstract
(57)【要約】
【目的】植物性パルプを叩解して紙を製造する方法であ
って、特に抄紙工程のワイヤーパートでの脱水性を改良
した紙の製造方法を提供するものである。
【構成】植物性パルプを叩解して紙を製造する方法であ
り、叩解した原料パルプをキシラナーゼで処理する紙の
製造法。(57) [Abstract] [Purpose] A method for producing paper by beating plant pulp, particularly, a method for producing paper with improved dewatering property in the wire part of the papermaking process. [Structure] A method for producing paper by beating vegetable pulp, which is a method for producing paper by treating beating raw material pulp with xylanase.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、植物性パルプを叩解し
て紙を製造する方法に関し、特に、抄紙工程での脱水性
を改良した紙の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing paper by beating plant pulp, and more particularly to a method for producing paper with improved dewaterability in the papermaking process.
【０００２】[0002]
【従来の技術】一般に、紙の製造に際しては、植物性パ
ルプを所望の品質を有する紙を得るために、例えば、紙
の強度や平滑度等を向上させる目的で各種の叩解機を用
いて叩解や精選が施される。叩解を終えたパルプは、抄
紙工程に送られ、ワイヤーパートやプレスパートで脱水
が行われ、次工程のドライヤパートで乾燥されて紙とし
て仕上げられる。通常、パルプを叩解機で叩解すると、
パルプは外部フィブリル化や内部フィブリル化を起こ
し、ワイヤーパートでの脱水性を悪化させる原因とな
る。その対策として、無機および有機の凝集剤を添加し
たり、抄紙機のスピードを落とすことなどが行われてい
る。この場合、凝集剤の添加はパルプのフロック化を促
し、結果として紙の地合が悪化する。他方、抄紙機のス
ピードを落とすことは生産性を低下させることになり、
いずれも難点であり、その解決策が希求されている。2. Description of the Related Art Generally, in the production of paper, in order to obtain a paper having a desired quality, vegetable pulp is beaten using various beaters for the purpose of improving the strength and smoothness of the paper. And carefully selected. The pulp that has been beaten is sent to a papermaking process, dehydrated by a wire part and a press part, and dried by a dryer part in the next process to be finished as paper. Usually, when pulp is beaten with a beater,
Pulp causes external fibrillation and internal fibrillation, which becomes a cause of deteriorating the dehydration property in the wire part. As measures against this, addition of inorganic and organic coagulants and reduction of the speed of the paper machine have been carried out. In this case, the addition of the flocculant promotes the flocculation of pulp, and as a result, the formation of paper is deteriorated. On the other hand, reducing the speed of the paper machine will reduce productivity,
Both of them are difficult points, and solutions to them are sought after.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、植物性パル
プを叩解して紙を製造する方法に関するものであり、特
に抄紙機のワイヤーパートにおける脱水性を改良した紙
の製造方法を提供するものである。SUMMARY OF THE INVENTION The present invention relates to a method for producing paper by beating plant pulp, and particularly to a method for producing paper with improved dewatering property in a wire part of a paper machine. Is.
【０００４】[0004]
【課題を解決する為の手段】本発明は、植物性パルプを
叩解して紙を製造する方法において、叩解されたパルプ
にキシラナーゼを添加して処理することを特徴とする紙
の製造方法である。DISCLOSURE OF THE INVENTION The present invention is a method for producing paper by beating plant pulp, which is characterized in that xylanase is added to the beaten pulp and treated. .
【０００５】[0005]
【作用】本発明で使用される植物性パルプとしては、広
葉樹、針葉樹、草木類等を原料としたＧＰ、ＰＧＷ、Ｔ
ＭＰ、ＣＴＭＰ、ＲＧＰ、ＣＭＰ、ＳＣＰ、ＫＰ、ＳＰ
法等によって得られる未晒および晒パルプ、あるいは、
これらのパルプを含有する古紙再生パルプがその対象と
なる。The plant pulp used in the present invention includes GP, PGW, T made from hardwood, conifer, vegetation and the like.
MP, CTMP, RGP, CMP, SCP, KP, SP
Unbleached and bleached pulp obtained by the method, or
Recycled waste pulp containing these pulps is the target.
【０００６】一般に、上記の如きパルプは所望の紙品質
を得るために、叩解機、例えばシングルディスクリファ
イナー、ダブルディスクリファイナー、ビーター、コニ
カルリフィナー、あるいはジョルダン等の叩解機を使用
してパルプに外部フィブリル化（繊維壁の枝状化）や内
部フィブリル化（繊維の層構造の弛緩）を起こさせる。
この叩解機によるパルプの処理程度を調整するのに、一
般的には、パルプのフリーネスが測定される。即ち、叩
解を進めるとＪＩＳ法のカナディアンフリーネス（以
下、ＣＳＦと記す）では数値が小さくなり、紙の強度や
平滑性は向上するが、抄紙工程のワイヤーパートでの脱
水性が悪くなり、生産性が低下するといった難点があ
る。In general, the pulp as described above is externally fibrillated into pulp by using a beater such as a single disc refiner, a double disc refiner, a beater, a conical refiner, or Jordan in order to obtain a desired paper quality. It causes denaturation (branching of the fiber wall) and internal fibrillation (relaxation of the layer structure of the fiber).
In order to adjust the degree of processing of pulp by this beater, the freeness of pulp is generally measured. That is, as the beating proceeds, the numerical value becomes smaller in the Canadian Freeness (hereinafter referred to as CSF) of the JIS method, and the strength and smoothness of the paper are improved, but the dewatering property in the wire part in the papermaking process is deteriorated and the productivity is improved. There is a problem that it decreases.
【０００７】本発明者等は、上記ワイヤーパートでの原
料パルプの脱水性改良を目的として鋭意研究を重ねた。
その結果、紙料となる叩解後の原料パルプにキシラナー
ゼ（酵素）を添加、処理を行うとＣＳＦの数値が大きく
なり、ワイヤーパートでの脱水性が改良されることを見
出した。その理由は定かではないが、木材パルプおよび
／または非木材パルプ中には、化学成分の一つとしてキ
シランが含有されているが、そのキシランがパルプの叩
解作用でフィブリル化、膨潤を起こし、ＣＳＦの数値を
小さくする一因となっている。そして、そのような膨潤
を起こしたパルプ中にキシラナーゼを添加することによ
り、膨潤したキシランが加水分解作用を受けて、溶出
し、ＣＳＦの数値を大きくするためと推定される。The inventors of the present invention have made extensive studies for the purpose of improving the dehydration property of the raw material pulp in the wire part.
As a result, they have found that when xylanase (enzyme) is added to the raw pulp after beating, which is to be used as a paper stock, and treated, the value of CSF increases and the dehydration property in the wire part is improved. Although the reason is not clear, xylan is contained in the wood pulp and / or the non-wood pulp as one of the chemical components, and the xylan causes fibrillation and swelling by the beating action of the pulp, resulting in CSF. This is one of the reasons for reducing the value of. It is presumed that by adding xylanase to the swollen pulp, the swollen xylan is hydrolyzed and eluted to increase the CSF value.
【０００８】市販されているキシラナーゼには各種のも
のがあるが、特に限定されるものではない。なお、それ
らにはキシラナーゼ活性の他にセルラーゼ活性やプロテ
ナーゼ活性等を含むものがある。これらのうち、セルラ
ーゼ活性の高いものはパルプの強度を下げる傾向がある
ので、本発明では避けた方がよい。因みに、キシラナー
ゼのパルプへの添加率は固形分比率で対パルプ０．０３
〜０．５重量％程度で調節される。また、キシラナーゼ
の添加、処理条件としてはｐＨ４〜９、処理温度１５〜
６０℃、処理時間０．３〜４時間程度で調節される。な
お、キシラナーゼで処理した後、原料パルプ中には目標
とする品質に応じて各種填料、サイズ剤、歩留向上剤、
紙力増強剤、染料、その他の抄紙用内添剤を適宜添加す
ることができる。なお、叩解処理した後抄紙用内添剤等
を添加した後にキシラナーゼ処理をすることも可能であ
る。かくして調製、処理されたパルプ原料は抄紙工程へ
送られて、所望とする紙に仕上げられる。There are various kinds of commercially available xylanase, but it is not particularly limited. Some of them include cellulase activity and proteinase activity in addition to xylanase activity. Among these, those having high cellulase activity tend to reduce the strength of pulp, and thus should be avoided in the present invention. By the way, the addition rate of xylanase to pulp is 0.03 in terms of solid content to pulp.
It is adjusted to about 0.5% by weight. In addition, xylanase is added, the treatment conditions are pH 4 to 9, treatment temperature 15 to
It is adjusted at 60 ° C. and the treatment time is about 0.3 to 4 hours. After treatment with xylanase, the raw material pulp contains various fillers, sizing agents, retention agents, and
A paper strength enhancer, a dye, and other internal additives for papermaking can be appropriately added. It is also possible to carry out the xylanase treatment after adding the internal additive for papermaking after the beating treatment. The pulp raw material thus prepared and processed is sent to a papermaking step to be finished into a desired paper.
【０００９】[0009]
【実施例】以下に、実施例を挙げて本発明をより具体的
に説明するが、勿論本発明はこれらに限定されるもので
はない。なお、例中の％は特に断らない限り、重量％を
示す。The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. Unless otherwise specified,% in the examples means% by weight.
【００１０】実施例１ 広葉樹晒ＫＰをダブルディスクリファイナーで叩解して
ＣＳＦ４５０ｍｌを得た。この叩解原料にパルプに対し
て、キシラナーゼ（パルプザイムＨＢ：ノボノルディス
クバイオインダストリー社製）０．０８％添加し、パル
プ濃度：３．５％、ｐＨ：６．５、温度：４０℃で２時
間処理した。この原料を用いて手抄きを行い、坪量６０
ｇ／ｍ2 の紙を得た。その品質結果を表１に示す。Example 1 Hardwood bleached KP was beaten with a double disc refiner to obtain 450 ml of CSF. To this pulp, 0.08% of xylanase (pulpzyme HB: manufactured by Novo Nordisk Bioindustry) was added to pulp, and pulp concentration: 3.5%, pH: 6.5, temperature: 40 ° C. for 2 hours. Processed. Handmade using this raw material, basis weight 60
A g / m 2 paper was obtained. The quality results are shown in Table 1.
【００１１】実施例２ 広葉樹晒ＣＴＭＰをダブルディスクリファイナーで叩解
してＣＳＦ２００ｍｌを得た。この叩解を終えた原料パ
ルプに対して、キシラナーゼ（パルプザイムＨＢ：ノボ
ノルディスクバイオインダストリー社製）０．１５％を
添加し、パルプ濃度：３．５％、ｐＨ：６．５、温度：
４０℃で３時間処理した。この原料を用いて手抄きを行
い、坪量６０ｇ／ｍ2 の紙を得た。その品質結果を表１
に示す。Example 2 Hardwood bleached CTMP was beaten with a double disc refiner to obtain 200 ml of CSF. 0.15% of xylanase (Pulpzyme HB: manufactured by Novo Nordisk Bio Industry Co., Ltd.) was added to the raw pulp that had been beaten, and pulp concentration: 3.5%, pH: 6.5, temperature:
It was treated at 40 ° C. for 3 hours. Hand-papermaking was performed using this raw material to obtain paper having a basis weight of 60 g / m 2 . The quality results are shown in Table 1.
Shown in.
【００１２】実施例３ 針葉樹未晒ＧＰをシングルディスクリファイナーで叩解
してＣＳＦ６０ｍｌを得た。この叩解原料にパルプに対
して、キシラナーゼ（アルバザイム１０：ＧＥＮＥＮＣ
ＯＲ ＩＮＴＥＲＮＡＴＩＯＮＡＬ社製）０．２０％を
添加し、パルプ濃度：４．５％、ｐＨ：５．５、温度：
５０℃で３時間処理した。この原料を用いて手抄きを行
い、坪量６０ｇ／ｍ2 の紙を得た。その品質結果を表１
に示す。Example 3 Unbleached GP of softwood was beaten with a single disc refiner to obtain 60 ml of CSF. For this beating material, xylanase (Albazyme 10: GENENC
(OR INTERNATIONAL) 0.20% was added, pulp concentration: 4.5%, pH: 5.5, temperature:
It was treated at 50 ° C. for 3 hours. Hand-papermaking was performed using this raw material to obtain paper having a basis weight of 60 g / m 2 . The quality results are shown in Table 1.
Shown in.
【００１３】比較例１ 実施例１において、キシラナーゼ処理をしなかった以外
は実施例１と同様にして坪量６０ｇ／ｍ2 の紙を得た。
得られた紙の品質結果を表１に示す。Comparative Example 1 Paper having a basis weight of 60 g / m 2 was obtained in the same manner as in Example 1 except that the xylanase treatment was not carried out.
Table 1 shows the quality results of the obtained paper.
【００１４】比較例２ 実施例２において、キシラナーゼ処理をしなかった以外
は実施例２と同様にして坪量６０ｇ／ｍ2 の紙を得た。
得られた紙の品質結果を表１に示す。Comparative Example 2 Paper having a basis weight of 60 g / m 2 was obtained in the same manner as in Example 2 except that the xylanase treatment was not carried out.
Table 1 shows the quality results of the obtained paper.
【００１５】比較例３ 実施例２において、キシラナーゼ処理の代わりにセルラ
ーゼ（セルザイム：ノボノルディスクバイオインダスト
リー社製）処理をした以外は実施例２と同様にして坪量
６０ｇ／ｍ2 の紙を得た。得られた紙の品質結果を表１
に示す。Comparative Example 3 A paper having a basis weight of 60 g / m 2 was obtained in the same manner as in Example 2 except that cellulase (cellzyme: manufactured by Novo Nordisk Bioindustry) was used instead of the xylanase treatment. It was Table 1 shows the quality results of the obtained paper.
Shown in.
【００１６】比較例４ 実施例３において、キシラナーゼ処理をしなかった以外
は実施例３と同様にして坪量６０ｇ／ｍ2 の紙を得た。
得られた紙の品質結果を表１に示す。Comparative Example 4 A paper having a basis weight of 60 g / m 2 was obtained in the same manner as in Example 3 except that the xylanase treatment was not carried out.
Table 1 shows the quality results of the obtained paper.
【００１７】〔フリーネスの測定法〕ＪＩＳ−Ｐ−８１
２１カナダ標準ろ水度法に準じて行った。[Freeness Measuring Method] JIS-P-81
21 It carried out according to the Canadian standard freeness method.
【００１８】〔裂断長の測定法〕ＪＩＳ−Ｐ−８１１３
に準じて行った。[Measurement Method of Breaking Length] JIS-P-8113
It was carried out according to.
【００１９】〔比引裂度の測定法〕ＪＩＳ−Ｐ−８１１
６に準じて行った。[Measurement Method of Specific Tear Degree] JIS-P-811
It carried out according to 6.
【００２０】[0020]
【表１】 [Table 1]
【００２１】[0021]
【発明の効果】表１の結果から明らかなように、本発明
に係るキシラナーゼ処理によるパルプ原料を使用して得
られた紙はフリーネスが高くなり、かつ強度を落とすこ
となくワイヤー上での脱水性の改良されたものであっ
た。As is clear from the results of Table 1, the paper obtained by using the pulp raw material by the xylanase treatment according to the present invention has a high freeness and is dehydrated on the wire without lowering the strength. It was an improved version of.
Claims (1)
において、叩解されたパルプにキシラナーゼを添加して
処理することを特徴とする紙の製造方法。1. A method for producing paper by beating pulp derived from vegetable pulp, which comprises adding xylanase to the beaten pulp and treating the pulp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6829093A JPH06280179A (en) | 1993-03-26 | 1993-03-26 | Paper manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6829093A JPH06280179A (en) | 1993-03-26 | 1993-03-26 | Paper manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06280179A true JPH06280179A (en) | 1994-10-04 |
Family
ID=13369500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6829093A Pending JPH06280179A (en) | 1993-03-26 | 1993-03-26 | Paper manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06280179A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1046495A (en) * | 1996-07-24 | 1998-02-17 | Oji Paper Co Ltd | Printing coated paper and method for producing the same |
| JPH10131090A (en) * | 1996-10-25 | 1998-05-19 | Oji Paper Co Ltd | Cast coated paper and method for producing the same |
-
1993
- 1993-03-26 JP JP6829093A patent/JPH06280179A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1046495A (en) * | 1996-07-24 | 1998-02-17 | Oji Paper Co Ltd | Printing coated paper and method for producing the same |
| JPH10131090A (en) * | 1996-10-25 | 1998-05-19 | Oji Paper Co Ltd | Cast coated paper and method for producing the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU1701117A3 (en) | Method of paper pulp dehydration | |
| US5110412A (en) | Method of manufacture of paper or cardboard using recycled fibers treated with enzymes | |
| US10240288B2 (en) | Method of producing microfibrillated cellulose | |
| CN100575597C (en) | Chemical Activation and Refining of Southern Pine Kraft Fiber | |
| EP0755468B1 (en) | Preparation process of paper for increasing filler contents and enhancing scott internal bond strength | |
| JP3110758B2 (en) | Use of cellulase for pulping | |
| US3041246A (en) | Enzymatic conversion of cellulosic fibers | |
| JP2883872B2 (en) | Sanitary tissue paper | |
| JPH06280179A (en) | Paper manufacturing method | |
| US4966651A (en) | Method of paper making using an abrasive refiner for refining bleached thermochemical hardwood pulp | |
| US3192102A (en) | Pulping process | |
| JPH0523262A (en) | Softening treated pulp and Teisyu paper obtained by making softening treated pulp | |
| EP0576470B1 (en) | A method for reducing pitch trouble in mechanical pulp | |
| EP0512790B1 (en) | Treatment of alkali treated pulp for use in papermaking | |
| US4388148A (en) | Process for producing pulp | |
| CA1122001A (en) | Method for drying chemical or semi-chemical pulp | |
| JP2003049385A (en) | Newsprint paper | |
| JPS6247999B2 (en) | ||
| JPH02118191A (en) | Production of mechanical pulp for papermaking and production of paper | |
| US1803737A (en) | Process relating to the production of synthetic lumber from cornstalks | |
| US5925218A (en) | Rehydration of once-dried fiber | |
| JP2025112457A (en) | Kraft pulp and paper | |
| US1946952A (en) | Process for producing synthetic lumber that is not attacked by molds | |
| JP3125489B2 (en) | Fine lignocellulosic fiber and paper product using the fiber | |
| FI108548B (en) | Procedure for improving the brightness of paper |