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WO1997038164A1 - Agent d'egouttage pour pate a papier - Google Patents

Agent d'egouttage pour pate a papier Download PDF

Info

Publication number
WO1997038164A1
WO1997038164A1 PCT/AU1997/000182 AU9700182W WO9738164A1 WO 1997038164 A1 WO1997038164 A1 WO 1997038164A1 AU 9700182 W AU9700182 W AU 9700182W WO 9738164 A1 WO9738164 A1 WO 9738164A1
Authority
WO
WIPO (PCT)
Prior art keywords
enzyme
paper
amylase
drainage
pulp
Prior art date
Application number
PCT/AU1997/000182
Other languages
English (en)
Inventor
Edmond Lascaris
Original Assignee
Participant Project Ip Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Participant Project Ip Limited filed Critical Participant Project Ip Limited
Priority to NZ331961A priority Critical patent/NZ331961A/xx
Priority to AU21429/97A priority patent/AU707791B2/en
Priority to EP97913976A priority patent/EP0891442A4/fr
Publication of WO1997038164A1 publication Critical patent/WO1997038164A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/10—Retention agents or drainage improvers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/14—Secondary fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • 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
    • D21H17/005—Microorganisms or enzymes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • 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
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/22—Proteins

Definitions

  • This invention relates to improvements in treating pulp and process water in paper mills and in particular to a drainage aid for use in recycled paper mills
  • Enzyme treatment of paper pulps has been proposed to improve the freeness and physical properties of paper pulps with some claiming success with recycled fibre as well as virgin fibre .
  • the enzymes that have been proposed are xylanases, cellulases, and other hemicellulases. These are commercially available as crude mixtures characterised by the dominant presence of the named enzyme.
  • One defect of these treatments is that careful regulation of the addition and treatment conditions is required, because excessive treatment can lead to a decline in drainage.
  • Another difficulty is that paper pulps are usually neutral and many cellulases are active in the acidic pH range.
  • U S A patent 4923565 proposed the use of a cellulase (having cellulase and xylanase activity), as a drainage aid for recycled paper pulp.
  • One shortcoming of this proposal is that the pH must be adjusted to within the range 3 to 7.
  • Patent specification WO 91/17243 discloses that a cellulase having an endo - glucanase component active between pH 6 and 10 can be used as a drainage aid for paper pulps including waste paper pulp.
  • the purpose of the enzyme is to reduce harshness or clarify colour in cellulose containing fabrics
  • recycled paper is intended to cover paper pulp, which includes a major portion of paper or paperboard that has been recycled.
  • the present invention provides, as a drainage aid for improving the free drainage of recycled paper pulp slurries, a preparation containing a major portion of a starch hydrolysing enzyme, preferably an amylase and more preferably an alpha-amylase.
  • a starch hydrolysing enzyme preferably an amylase and more preferably an alpha-amylase.
  • the invention also includes a method of improving drainage of recycled paper pulp which includes the step of adding to the pulp a drainage aid containing a major portion of a starch hydrolysing enzyme, preferably amylase, prior to the separation of the water from the pulp.
  • the drainage aid is added in an amount of at least 0.05% by weight of oven dried paper forming the pulp, for a time and at a temperature sufficient to produce an improved drainage rate and at a pH at which the enzymes are active.
  • the addition of enzyme will improve drainage to the extent that the paper machine speed and production can be increased by about 5% or more
  • this invention is predicated on the discovery that drainage of recycled paper pulps is hampered by coatings on solid components in the pulp, particularly by the fine particles in the pulp
  • a significant proportion of recycled paper contains starch or starch based materials and in part this invention is based on the realisation that that enzymatic treatment may remove this coating
  • This invention is also founded on the discovery that amylase is able to act on the coatings of particles in the pulp regardless of its inner composition which is not the case with previously proposed enzymes such as cellulase. It is thought that the coatings are starch based and cellulases have little effect on the starch, but are more likely to act on the particles which are primarily cellulose This further discovery also indicates that amylase is specific in its action on the starch components.
  • a drainage aid having a major amylase component may be due to the coatings on the fines being largely composed of starch and thus more susceptible to amylase or other starch hydrolysing enzyme treatment. Because the amylase has Little action on the cellulose component of the fibres, excess treatment is unlikely to cause any deleterious effect. This contrasts with the prior art enzymes which are primarily cellulases which are usually recommended for papers made with a high content of virgin fibre
  • amylase is a major component of the drainage aid
  • other enzymes particularly cellulases active in the neutral- alkaline pH range, particularly pH 6 to 9 may be present.
  • Some cellulases do improve drainage which is inhibited by cellulose based materials in the pulp and part of drainage inhibition in recycled pulps may be reduced with cellulases
  • a mixture of amylase and cellulase may provide the optimum improvement Detailed description of the invention
  • Process conditions for dewatering paper pulp using the drainage aid of this invention are typically: temperature 40 to 90 °C pH 6 to 9 enzyme dosage 2.5xl0 6 to 15xl0 6 IU of activity per tonne of pulp which for an alpha amylase such as BAN 240L is equivalent to 0.5 to 3 Kg per oven dried tonne of recycled paper. contact times 15 to 120 minutes
  • the International Unit [I U] of enzyme activity is the amount of enzyme necessary to produce 1 micromole of reducing sugar product per minute.
  • the enzymes used in the drainage aid can comprise an amylase alone preferably a crude amylase or an amylase in combination with a cellulase such as endoglucanase, xylanase, or other hemi cellulases such as mannanase, all of which are preferably active in the neutral to alkahne pH range of 6 to 9.
  • a preferred crude alpha- amylase is that derived from Bacillus subtilis.
  • Starch hydrolysing enzymes from other microbial species may also be used including B.licheniformis and Aspergillus oryzae
  • the conventional polymeric fiocculants such as cationic polyacrylamide, which also aid in drainage can be used.
  • the amylase presence will allow a reduction in the amount of the fiocculants required.
  • amylase acts on the surface of all the components in the backwater regardless of inner composition, by removing starch coatings on both fines and fibres. Excessive treatment with cellulases tends to increase the fines leading to a decline in drainage performance and paper strength.
  • the large surface area and particulate nature of the fines is regarded as the major contributor to poor drainage performance of recycled pulps.
  • the interaction between particle surface, retention and drainage aids and water is thought to be enhanced. This consequently encourages better drainage in the forming section of the paper plant.
  • Example 2 A mill trial was conducted on a twin wire fourdrinier machine producing hners and medium for corrugated boxes.
  • the machine is capable of producing between 12 and 15 tons of paper per hour from furnish consisting of mixed waste paper, newsprint and OCC.
  • the enzyme selected for the mill trial was BAN 240L which is an alpha amylase preparation produced by Novo Nordisk. It is a clear brown watery liquid obtained from a purified culture of Bacillus subtilis variety amyloliquefaciens.
  • the enzyme addition commenced from 9am on day 1 and ceased 12pm on day 3 [approximately 48hours].
  • the enzyme was dosed at 30 1 hr [as received basis] in at two points in the stock preparation area.
  • Table 5 shows the mill performance over 7 days with the enzyme addition occurring on days 1 to 3. During the period of enzyme addition the machine speed increased by 4.49% compared to the operation without enzyme addition. In the table production rates have been extrapolated to remove lost time. Product output increased 6.5% but when adjusted for trim the increase was 4.48%.
  • Control particle count decreased from 212056 to 144617 while the a- Amylase particle count decreased from 178404 to 128787.
  • alpha-Amylase is inactivated in the drying section • alpha-Amylase is a food grade enzyme and is safe for use in making food packaging
  • alpha-Amylase is commonly available

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  • Paper (AREA)

Abstract

Afin d'améliorer l'égouttage et par conséquent la vitesse de la machine lors de la fabrication de papier ou de carton à partir de papier recyclé, on ajoute une enzyme hydrolysant l'amidon (une alpha-amylase) avant le passage de la pâte dans la section de formation de la feuille. Cette enzyme doit être active dans une plage de températures se situant entre 40 et 90 °C et dans une gamme de pH comprise entre 6 et 9. Des quantités enzymatiques pondérales aussi faibles que 0,05 % du poids du papier séché à l'étuve et formant la pâte permettent d'augmenter les vitesses de la machine d'au moins 5 % ou davantage.
PCT/AU1997/000182 1996-04-03 1997-04-02 Agent d'egouttage pour pate a papier WO1997038164A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NZ331961A NZ331961A (en) 1996-04-03 1997-04-02 Paper pulp drainage aid
AU21429/97A AU707791B2 (en) 1996-04-03 1997-04-02 Paper pulp drainage aid
EP97913976A EP0891442A4 (fr) 1996-04-03 1997-04-02 Agent d'egouttage pour pate a papier

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPN9096 1996-04-03
AUPN9096A AUPN909696A0 (en) 1996-04-03 1996-04-03 Paper pulp drainage aid

Publications (1)

Publication Number Publication Date
WO1997038164A1 true WO1997038164A1 (fr) 1997-10-16

Family

ID=3793410

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1997/000182 WO1997038164A1 (fr) 1996-04-03 1997-04-02 Agent d'egouttage pour pate a papier

Country Status (5)

Country Link
EP (1) EP0891442A4 (fr)
AU (1) AUPN909696A0 (fr)
CA (1) CA2251191A1 (fr)
NZ (1) NZ331961A (fr)
WO (1) WO1997038164A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6187135B1 (en) 1999-03-30 2001-02-13 Sun Ho Chung Process for making recycled paper having improving strength properties
KR100288119B1 (ko) * 1998-06-27 2001-05-02 김충섭 부상부유 및 효소처리를 이용한 골판지 고지의 재생방법
US6340407B1 (en) * 1999-12-22 2002-01-22 Sun Ho Chung Process of making recycled linerboard or Kraft paper from old corrugated container
KR20030035636A (ko) * 2001-11-01 2003-05-09 한국화학연구원 제지 폐슬러지로부터 당류를 생산하는 방법
WO2008069655A1 (fr) * 2006-12-05 2008-06-12 Meneba B.V. Produit à base de farine, sa préparation et son utilisation
WO2010026101A1 (fr) 2008-09-02 2010-03-11 Basf Se Procédé de fabrication de papier et de carton par utilisation d'endo-bêta-1,4-glucanases en tant qu'agent d'égouttage
US8043384B2 (en) * 2009-10-22 2011-10-25 Green Comfort Safe, Inc. Method for making fire retardant materials and related products
WO2014058581A1 (fr) * 2012-10-10 2014-04-17 Buckman Laboratories International, Inc. Fixation d'huile minérale dans un emballage alimentaire en papier comprenant une laccase pour empêcher la migration d'huile minérale vers l'aliment
CN112921691A (zh) * 2021-01-20 2021-06-08 山鹰国际控股股份公司 一种废旧瓦楞箱纸板废纸制浆废渣的处理工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319846A2 (fr) * 1987-12-07 1989-06-14 Enso-Gutzeit Oy Procédé de fabrication d'un papier ou carton et un produit fabriqué par ce procédé
EP0334739A1 (fr) * 1988-03-22 1989-09-27 La Cellulose Du Pin Procédé de fabrication de papiers ou cartons à partir de fibres recyclées, Traitées avec des enzymes
WO1997004168A1 (fr) * 1995-07-17 1997-02-06 Sveriges Stärkelseproducenter, Förening UPA Agent de retention
WO1997010386A1 (fr) * 1995-09-15 1997-03-20 Roermond Papier B.V. Papiers et cartons a adjonction de matieres proteiques

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK80390D0 (fr) * 1990-03-29 1990-03-29 Novo Nordisk As
DE69107455T3 (de) * 1990-05-09 2004-09-23 Novozymes A/S Eine ein endoglucanase enzym enthaltende zellulasezubereitung.
FR2676456A1 (fr) * 1991-05-13 1992-11-20 Agronomique Inst Nat Rech Variants thermostables de l'alpha-amylase de bacillus licheniformis, leur procede de preparation et leur utilisation.
US5169497A (en) * 1991-10-07 1992-12-08 Nalco Chemical Company Application of enzymes and flocculants for enhancing the freeness of paper making pulp
DK131193D0 (fr) * 1993-11-23 1993-11-23 Novo Nordisk As
EP0772684B1 (fr) * 1994-06-17 2005-08-10 Genencor International, Inc. Enzymes amylolytiques derivees de b. licheniformis alpha-amylase, possedant des caracteristiques ameliorees

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319846A2 (fr) * 1987-12-07 1989-06-14 Enso-Gutzeit Oy Procédé de fabrication d'un papier ou carton et un produit fabriqué par ce procédé
EP0334739A1 (fr) * 1988-03-22 1989-09-27 La Cellulose Du Pin Procédé de fabrication de papiers ou cartons à partir de fibres recyclées, Traitées avec des enzymes
WO1997004168A1 (fr) * 1995-07-17 1997-02-06 Sveriges Stärkelseproducenter, Förening UPA Agent de retention
WO1997010386A1 (fr) * 1995-09-15 1997-03-20 Roermond Papier B.V. Papiers et cartons a adjonction de matieres proteiques
WO1997010385A1 (fr) * 1995-09-15 1997-03-20 Roermond Papier B.V. Papiers et cartons comportant des matieres a base d'amidon et de proteines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0891442A4 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100288119B1 (ko) * 1998-06-27 2001-05-02 김충섭 부상부유 및 효소처리를 이용한 골판지 고지의 재생방법
US6187135B1 (en) 1999-03-30 2001-02-13 Sun Ho Chung Process for making recycled paper having improving strength properties
US6340407B1 (en) * 1999-12-22 2002-01-22 Sun Ho Chung Process of making recycled linerboard or Kraft paper from old corrugated container
KR20030035636A (ko) * 2001-11-01 2003-05-09 한국화학연구원 제지 폐슬러지로부터 당류를 생산하는 방법
WO2008069655A1 (fr) * 2006-12-05 2008-06-12 Meneba B.V. Produit à base de farine, sa préparation et son utilisation
US8328989B2 (en) 2006-12-05 2012-12-11 Stichting Kennis Exploitatie Rb Flour-based product, its preparation and use
WO2010026101A1 (fr) 2008-09-02 2010-03-11 Basf Se Procédé de fabrication de papier et de carton par utilisation d'endo-bêta-1,4-glucanases en tant qu'agent d'égouttage
US8394237B2 (en) 2008-09-02 2013-03-12 BASF SE Ludwigshafen Method for manufacturing paper, cardboard and paperboard using endo-beta-1,4-glucanases as dewatering means
US8043384B2 (en) * 2009-10-22 2011-10-25 Green Comfort Safe, Inc. Method for making fire retardant materials and related products
WO2014058581A1 (fr) * 2012-10-10 2014-04-17 Buckman Laboratories International, Inc. Fixation d'huile minérale dans un emballage alimentaire en papier comprenant une laccase pour empêcher la migration d'huile minérale vers l'aliment
US9464386B2 (en) 2012-10-10 2016-10-11 Buckman Laboratories International, Inc. Fixation of mineral oil in paper food packaging with laccase to prevent mineral oil migration into food
CN112921691A (zh) * 2021-01-20 2021-06-08 山鹰国际控股股份公司 一种废旧瓦楞箱纸板废纸制浆废渣的处理工艺

Also Published As

Publication number Publication date
CA2251191A1 (fr) 1997-10-16
AUPN909696A0 (en) 1996-04-26
NZ331961A (en) 1999-03-29
EP0891442A4 (fr) 2000-03-01
EP0891442A1 (fr) 1999-01-20

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