JP5831994B2 - 酵素とカチオン性凝結剤との組合せを用いた製紙プロセス及びシステム - Google Patents
酵素とカチオン性凝結剤との組合せを用いた製紙プロセス及びシステム Download PDFInfo
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- JP5831994B2 JP5831994B2 JP2013505134A JP2013505134A JP5831994B2 JP 5831994 B2 JP5831994 B2 JP 5831994B2 JP 2013505134 A JP2013505134 A JP 2013505134A JP 2013505134 A JP2013505134 A JP 2013505134A JP 5831994 B2 JP5831994 B2 JP 5831994B2
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Images
Classifications
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- D—TEXTILES; PAPER
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- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
-
- D—TEXTILES; PAPER
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- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/005—Microorganisms or enzymes
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- D—TEXTILES; PAPER
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- D—TEXTILES; PAPER
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- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
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- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
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- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
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- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
- D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
- D21H17/45—Nitrogen-containing groups
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- D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
- D21H17/56—Polyamines; Polyimines; Polyester-imides
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- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
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- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
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Description
a)酵素及びカチオン性凝結剤を含む組成物を製紙パルプに適用し、処理済パルプを形成する、適用することと、
b)処理済パルプを紙又は板紙に形成することと、
を含む、紙又は板紙を作製する方法に関する。
2.パルプが組成物をパルプに適用する前に約40℃未満の温度(単数又は複数)に維持される、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
3.組成物が、乾燥固体重量ベースで約1重量%〜約99重量%(% by weight)の酵素、及び約99重量%〜約1重量%のカチオン性凝結剤を含む、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
4.酵素がセルロース分解酵素である、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
5.酵素がセルラーゼ、ヘミセルラーゼ、ペクチナーゼ、β−グルカナーゼ、CMCアーゼ、アミラーゼ、グルコシダーゼ、ガラクトシダーゼ、リパーゼ、プロテアーゼ、ラッカーゼ、又はそれらの任意の組合せである、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
6.酵素がエンドグルカナーゼである、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
7.カチオン性凝結剤がカチオン性の有機ポリマー凝結剤である、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
8.カチオン性凝結剤が、ポリアミン、ポリアクリルアミド、ポリアミドアミン−グリコール、ポリビニルアミン、ポリエチレンイミン、ポリジアリルジメチルアンモニウムクロライド、グリオキサール化カチオン性ポリアクリルアミド、カチオン性デンプン、又はそれらの任意の組合せである、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
9.カチオン性凝結剤が、ポリアミン、ポリアミドアミン−グリコール、ポリビニルアミン、ポリエチレンイミン、又はそれらの任意の組合せである、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
10.カチオン性凝結剤が無機カチオン性凝結剤である、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
11.カチオン性凝結剤が、ポリ塩化アルミニウム、硫酸アルミニウム、水分散性のアルミナ鉱物粒子、硫酸アルミニウム、塩化アルミニウム、塩化第二鉄、硫酸第二鉄、ポリ硫酸アルミニウム、ポリ硫酸アルミニウムシリケート、カチオン性のアルミナ鉱物粒子、カチオン性のコロイドシリカゾル、ポリ塩化アルミ、又はそれらの任意の組合せである、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
12.組成物をパルプの乾燥固体重量をベースとして1トン当たり少なくとも約0.5ポンドの量でパルプに添加する、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
13.凝集剤をパルプに、組成物をパルプに適用した後でかつ紙形成の前に適用することを更に含む、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
14.処理済パルプのパルプ温度を、少なくとも実質的に組成物とパルプとの接触時間の間中、約30℃〜約60℃に維持し、接触時間が約1分〜約150分である、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
15.凝集剤をパルプの乾燥固体重量をベースとして1トン当たり少なくとも約0.01ポンドの量でパルプに添加する、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
16.濾水(g/50秒)が酵素を用いないパルプの処理よりも少なくとも約5%大きい、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
17.濁度(NTU)が酵素を用いないパルプの処理よりも少なくとも約5%小さい、任意の上記又は下記の実施形態/特徴/態様に記載の方法。
18.製紙パルプの供給部と、パルプを回収するためのスクリーン及びスクリーンからパルプを受け取る紙シート形成加工ユニットを備える、パルプを紙又は板紙に形成するための加工ユニットと、酵素及びカチオン性凝結剤の水分散液を含む組成物の供給部と、紙形成前にパルプに適用するために組成物をパルプに給送するための組成物給送デバイスと、凝集剤の供給部と、酵素及びカチオン性凝結剤の組成物がパルプに適用される場所から下流の位置にある、凝集剤を処理済パルプに給送するための凝集剤給送デバイスと、白水再循環のための白水サイロとを備える、製紙システム。
19.パルプを紙又は板紙に形成するための上記加工ユニットが、パルプの上記供給部と連通したブレンドチェストと、ブレンドチェストと連通したファンポンプと、上記ファンポンプと連通したスクリーンと、上記スクリーンと連通した紙形成加工ユニットとしてのヘッドボックスとを備える、任意の上記又は下記の実施形態/特徴/態様に記載のシステム。
20.上記白水サイロが、上記機械チェストと連通した第1の注入口と、上記ヘッドボックスと連通した第2の注入口と、上記ファンポンプと連通した排出口とを備える、任意の上記又は下記の実施形態/特徴/態様に記載のシステム。
本発明を例示する組成物の濾水特性及び歩留まり特性を調べた。
以下の材料及びプロトコルを実験に用いた。
叩解OCCパルプ及び白水は、CSF 220、CSF 410及びCSF 330としてSonoco(Richmond, VA)及びInternational Paper(Valliant OK)等のライナーボード製造業者から入手した。新聞印刷用紙完成紙料及び白水は、CSF 50としてCatalyst(Snowflake, AZ)等の新聞印刷用紙製造業者から入手した。
実験に用いられるカチオン性凝結剤は、低分子量のカチオン性ポリアミン(BUFLOC(商標)5031、BuckmanLaboratories International, Inc.)であり、標準的な投与量は、OCC完成紙料では1.5lb/トン(乾燥固体ベース)及び新聞印刷用紙では4.0lb/トン(乾燥固体ベース)であった。凝集剤はポリアクリルアミド(BUFLOC(商標)5511、BuckmanLaboratories International, Inc.)であり、試験では0.2lb/トン(乾燥固体ベース)の標準投与量で用いられた。選択された酵素は、Novozymes製のNOVOZYM(商標)51081であった。酵素をカチオン性凝結剤と前混合した後、それを設計した添加レベルでパルプに適用した。異なる投与量又は実験に含まれる他の添加剤が適用される場合は、それらを示す。
MueTek(商標)RDFテスターを全ての濾水試験に適用し、濾水及び濁度を測定した。試験完成紙料の稠度は1.0%であった。化学物質添加プログラムは、初めにカチオン性凝結剤を添加した後、凝集剤が続くというものであった。白水循環をシミュレートするために、濾液を試験後に回収し、次の試験サンプルで再び使用した。全ての試験でのサンプル温度は32℃に制御された。
表1〜表3は、それぞれ5重量%、1重量%及び0.2重量%の異なる酵素添加レベルでのOCC完成紙料の濾水及び濁度に対するカチオン性凝結剤と組み合わせた酵素の効果に関する結果を示す。これらの実験では、OCC完成紙料(CSF 220)を、酵素(NOVOZYM(商標)51081)、1.5lb/トンの凝結剤(BUFLOC(商標)5031)及び0.2%酵素を用いた場合以外では0.2lb/トン(乾燥固体ベース)の凝集剤(BUFLOC(商標)5511)で処理した。1.0lb/トン(乾燥固体ベース)の微粒子(BUFLOC(商標)5461)(アニオン性コロイドシリカ)も含まれていた。結果をそれぞれ図3〜図5にグラフによって示す。
本発明を例示する更なる組成物の濾水特性及び歩留まり特性を調べた。
以下の材料及びプロトコルを実験に用いた。
叩解OCCパルプは、CSF 220としてSonoco(Richmond, VA)等のライナーボード製造業者から入手した。
実験に用いられるカチオン性凝結剤は、BUFLOC(商標)5031(BuckmanLaboratories International, Inc.)であり、投与量は、OCC完成紙料では1.5lb/トン(乾燥固体ベース)であった。凝集剤はBUFLOC(商標)5511(BuckmanLaboratories International, Inc.)であり、試験では0.2lb/トン(乾燥固体ベース)の投与量で用いられた。選択された酵素は、約1wt%の投与量のNovozymes製のNOVOZYM(商標)51081であった。酵素をカチオン性凝結剤と前混合した後、それを設計した添加レベルでパルプに適用した。
用いられる試験手順は実施例1で用いられたものと同じようなものであった。
表7は、OCC完成紙料の濾水及び濁度に対する、カチオン性凝結剤と組み合わせた酵素、酵素と組み合せないカチオン性凝結剤、及びカチオン性凝結剤と組み合せない酵素の効果に関する結果を示す。結果をそれぞれ図10及び図11にグラフによって示す。この結果により、全ての再循環回数で、酵素と組み合わせないカチオン性凝結剤で処理した完成紙料及びカチオン性凝結剤と組み合わせない酵素で処理した完成紙料と比較して、カチオン性凝結剤と組み合わせた酵素で処理したOCC完成紙料において濾水が大きくなり、濁度が小さくなったことが示される。
本発明を例示する更なる組成物の濾水特性及び歩留まり特性を調べた。
以下の材料及びプロトコルを実験に用いた。
叩解OCCパルプは、CSF 220としてSonoco(Richmond, VA)等のライナーボード製造業者から入手した。
実験に用いられるカチオン性凝結剤は、低分子カチオン性ポリアミン(BUFLOC(商標)5031、BuckmanLaboratories International, Inc.)、ポリアミドアミン−グリコール(BUFLOC(商標)597、BuckmanLaboratories International)及び低分子量のカチオン性ポリアミン(BUFLOC(商標)5551、BuckmanLaboratories International, Inc.)であった。凝結剤の投与量は、1.5lb/トン(乾燥固体ベース)であった。凝集剤はポリアクリルアミド(BUFLOC(商標)5511、BuckmanLaboratories International, Inc.)であり、全ての試験で0.2lb/トン(乾燥固体ベース)の投与量で用いた。選択された酵素はNovozymes製のNOVOZYM(商標)51081であった。酵素を凝結剤と前混合した後、設計した添加レベルでパルプに適用した。用いられる微粒子は、1.0lb/トン(乾燥固体ベース)の投与量のBUFLOC(商標)5461(BuckmanLaboratories International, Inc.)であった。
L9(34)の直交実験設計をこの実験に適用した。この実験設計戦略は、例えばHinkelmann, K., et al., (2008), Design and Analysis of Experiments.I and II (Second ed.), Wiley, ISBN 978-0-470-38551-7、及びGhosh,S., et al., (1996), Design and Analysis of Experiments. Handbook of Statistics,13, North-Holland, ISBN 0-444-82061-2に示される。選択された変数及び範囲を表8に挙げる。濾水及び濁度の両方に関する実験結果及び分析を表9及び表10にまとめる。
Claims (15)
- 紙又は板紙を作製する方法であって、
a)酵素及びカチオン性凝結剤を含む組成物を製紙パルプに適用し、処理済パルプを形成すること、ここで、該組成物を、製紙プロセスにおいて、白水サイロ後でありかつファンポンプ、スクリーン又はヘッドボックス前の製紙パルプに添加し、及び、該組成物が乾燥固体重量ベースで1重量%〜99重量%の酵素及び99重量%〜1重量%のカチオン性凝結剤を含み、及び、該組成物を該パルプの乾燥固体重量をベースとして1トン当たり約0.227kg〜約4.536kgの量で該パルプに添加する、並びに
b)該処理済パルプを紙又は板紙に形成すること、ここで、該処理済パルプのパルプ温度を、少なくとも実質的に該組成物と該パルプとの接触時間の間中、30℃〜60℃に維持し、かつ該接触時間が1分〜150分である、
を含む、紙又は板紙を作製する方法。
- パルプが該組成物を該パルプに適用する前に約40℃未満の温度に維持される、請求項1に記載の方法。
- 酵素がセルロース分解酵素である、請求項1に記載の方法。
- 酵素がセルラーゼ、ヘミセルラーゼ、ペクチナーゼ、β−グルカナーゼ、CMCアーゼ、アミラーゼ、グルコシダーゼ、ガラクトシダーゼ、リパーゼ、プロテアーゼ、ラッカーゼ、又はそれらの任意の組合せである、請求項1に記載の方法。
- 酵素がエンドグルカナーゼである、請求項1に記載の方法。
- カチオン性凝結剤がカチオン性の有機ポリマー凝結剤である、請求項1に記載の方法。
- カチオン性凝結剤が、ポリアミン、ポリアクリルアミド、ポリアミドアミン−グリコール、ポリビニルアミン、ポリエチレンイミン、ポリジアリルジメチルアンモニウムクロライド、グリオキサール化カチオン性ポリアクリルアミド、カチオン性デンプン、又はそれらの任意の組合せである、請求項1に記載の方法。
- カチオン性凝結剤が、ポリアミン、ポリアミドアミン−グリコール、ポリビニルアミン、ポリエチレンイミン、又はそれらの任意の組合せである、請求項1に記載の方法。
- カチオン性凝結剤が無機カチオン性凝結剤である、請求項1に記載の方法。
- カチオン性凝結剤が、ポリ塩化アルミニウム、硫酸アルミニウム、水分散性のアルミナ鉱物粒子、塩化アルミニウム、塩化第二鉄、硫酸第二鉄、ポリ硫酸アルミニウム、ポリ硫酸アルミニウムシリケート、カチオン性のアルミナ鉱物粒子、カチオン性のコロイドシリカゾル、ポリ塩化アルミ、又はそれらの任意の組合せである、請求項1に記載の方法。
- 凝集剤を該パルプに、該組成物を該パルプに適用した後でかつ紙形成の前に適用することを更に含む、請求項1に記載の方法。
- 凝集剤を該パルプの乾燥固体重量をベースとして1トン当たり少なくとも約0.005kgの量で該パルプに添加する、請求項11に記載の方法。
- 濾水(g/50秒)が該酵素を用いない該パルプの処理よりも少なくとも約5%大きい、請求項1に記載の方法。
- 濁度(NTU)が該酵素を用いない該パルプの処理よりも少なくとも約5%小さい、請求項1に記載の方法。
- 組成物を、製紙プロセスにおいて、白水サイロ後でありかつファンポンプ前の製紙パルプに添加する、請求項1に記載の方法。
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PCT/US2011/032475 WO2011130503A2 (en) | 2010-04-15 | 2011-04-14 | Paper making processes and system using enzyme and cationic coagulant combination |
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ES2603398T3 (es) | 2017-02-27 |
PT2558640T (pt) | 2016-11-30 |
EP2558640B1 (en) | 2016-10-19 |
ZA201207192B (en) | 2014-02-26 |
EP2558640A4 (en) | 2014-10-01 |
BR112012026155A2 (pt) | 2021-03-23 |
NZ602637A (en) | 2014-10-31 |
US8454798B2 (en) | 2013-06-04 |
AU2011239595A1 (en) | 2012-11-08 |
CN102985613A (zh) | 2013-03-20 |
CN102985613B (zh) | 2015-11-25 |
MX2012011703A (es) | 2012-11-06 |
EP2558640A2 (en) | 2013-02-20 |
WO2011130503A4 (en) | 2012-06-21 |
CA2796258A1 (en) | 2011-10-20 |
WO2011130503A2 (en) | 2011-10-20 |
WO2011130503A3 (en) | 2012-04-05 |
JP2013527885A (ja) | 2013-07-04 |
AU2011239595B2 (en) | 2013-11-14 |
CA2796258C (en) | 2018-06-12 |
BR112012026155B1 (pt) | 2021-07-27 |
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