FI90670C - Paperinvalmistukseen käytettävän alkalikäsitellyn massan käsittely - Google Patents

Paperinvalmistukseen käytettävän alkalikäsitellyn massan käsittely Download PDF

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Publication number
FI90670C
FI90670C FI912136A FI912136A FI90670C FI 90670 C FI90670 C FI 90670C FI 912136 A FI912136 A FI 912136A FI 912136 A FI912136 A FI 912136A FI 90670 C FI90670 C FI 90670C
Authority
FI
Finland
Prior art keywords
pulp
pectinase
alkali
pectins
bleached
Prior art date
Application number
FI912136A
Other languages
English (en)
Swedish (sv)
Other versions
FI912136A (fi
FI90670B (fi
FI912136A0 (fi
Inventor
Bjarne Holmbom
Rainer Ekman
Christer Eckerman
Jeffrey W Thornton
Original Assignee
Metsae Serla Oy
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 Metsae Serla Oy filed Critical Metsae Serla Oy
Publication of FI912136A0 publication Critical patent/FI912136A0/fi
Priority to FI912136A priority Critical patent/FI90670C/fi
Priority to NO921737A priority patent/NO179842C/no
Priority to DE69212529T priority patent/DE69212529T2/de
Priority to ES92304028T priority patent/ES2092636T3/es
Priority to AT92304028T priority patent/ATE140985T1/de
Priority to EP92304028A priority patent/EP0512790B1/en
Publication of FI912136A publication Critical patent/FI912136A/fi
Application granted granted Critical
Publication of FI90670B publication Critical patent/FI90670B/fi
Publication of FI90670C publication Critical patent/FI90670C/fi
Priority to US08/294,876 priority patent/US5487812A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)

Claims (10)

1. Menetelma paperinvalmistuksen parantamiseksi poistamal- la vetta massasta, joka sisaltaa alkalikasiteltyja kasvikui-tuja, tunnettu siita, etta pektinaasia lisataan alkalikasi-teltyyn massaan kaikenlaisten pektiinien hajottamiseksi massan vesifaasissa. 15
2. Patenttivaatimuksen 1 mukainen menetelma, tunnettu siita, etta vetta poistetaan valkaistuja kasvikuituja sisaltå-vasta massasta.
3. Patenttivaatimuksen 1 tai 2 mukainen menetelma, tunnet tu siita, ettS massa alkalikasiteltyjen kasvikuitujen lisaksi sisaltaa vahintaan yhden seuraavista: tayteainetta ja retentioainetta.
4. Patenttivaatimuksen 3 mukainen menetelma, tunnettu sii ta, etta pektinaasin annetaan olennaisesti hajottaa pektii-neja alkalikasitellyn massan vesifaasissa ennen retentioai-neen lisaamista.
5. Jonkin patenttivaatimuksen 1-4 mukainen menetelma, tun nettu siita, etta alkalikasiteltyyn massaan lisataan 0,4 -4 % pektinaasia, kuivasta massasta laskettuna.
6. Jonkin patenttivaatimuksen 1-5 mukainen menetelma, tun-35 nettu siita, etta pektinaasia lisataan mainitusta alkalika-sitellysta massasta saatuun veteen ennen veden palauttamista vesikiertoon. Il is 90670
7. Patenttivaatimuksen 6 mukainen menetelma, tunnettu sii-ta, etta pektinaasia lisataan pesuveteen, joka on saatu mai-nitun alkalikSsitellyn massan pesusta.
8. Patenttivaatimuksen 6 mukainen menetelma, tunnettu sii- ta, etta pektinaasia lisatMån veteen, joka on saatu poistet-taessa vetta alkalikMsitellysta massasta.
9. Jonkin patenttivaatimuksen 1-8 mukainen menetelma, tun-10 nettu siita, etta pektinaasia lisataan mekaaniseen massaan, jota on valkaistu alkalisissa olosuhteissa.
10. Patenttivaatimuksen 9 mukainen menetelma, tunnettu siita, etta pektinaasia lisataan mekaaniseen massaan, jota on 15 valkaistu jollakin kemikaalilla ryhmasta: peroksidi, happi-kaasu, sulfiitti.
FI912136A 1991-05-02 1991-05-02 Paperinvalmistukseen käytettävän alkalikäsitellyn massan käsittely FI90670C (fi)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FI912136A FI90670C (fi) 1991-05-02 1991-05-02 Paperinvalmistukseen käytettävän alkalikäsitellyn massan käsittely
NO921737A NO179842C (no) 1991-05-02 1992-04-30 Fremgangsmåte for papirtilvirkning ved avvanning av masse
DE69212529T DE69212529T2 (de) 1991-05-02 1992-05-05 Behandlung von alkalisch behandeltem Papierzellstoff
ES92304028T ES2092636T3 (es) 1991-05-02 1992-05-05 Tratamiento de pasta tratada en un medio alcalino para emplear en la fabricacion de papel.
AT92304028T ATE140985T1 (de) 1991-05-02 1992-05-05 Behandlung von alkalisch behandeltem papierzellstoff
EP92304028A EP0512790B1 (en) 1991-05-02 1992-05-05 Treatment of alkali treated pulp for use in papermaking
US08/294,876 US5487812A (en) 1991-05-02 1994-08-23 Treatment of alkaline bleached mechanical wood pulp with pectinase

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI912136 1991-05-02
FI912136A FI90670C (fi) 1991-05-02 1991-05-02 Paperinvalmistukseen käytettävän alkalikäsitellyn massan käsittely

Publications (4)

Publication Number Publication Date
FI912136A0 FI912136A0 (fi) 1991-05-02
FI912136A FI912136A (fi) 1992-11-03
FI90670B FI90670B (fi) 1993-11-30
FI90670C true FI90670C (fi) 1994-03-10

Family

ID=8532435

Family Applications (1)

Application Number Title Priority Date Filing Date
FI912136A FI90670C (fi) 1991-05-02 1991-05-02 Paperinvalmistukseen käytettävän alkalikäsitellyn massan käsittely

Country Status (7)

Country Link
US (1) US5487812A (fi)
EP (1) EP0512790B1 (fi)
AT (1) ATE140985T1 (fi)
DE (1) DE69212529T2 (fi)
ES (1) ES2092636T3 (fi)
FI (1) FI90670C (fi)
NO (1) NO179842C (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4067297A (en) * 1996-08-16 1998-03-06 International Paper Company Enzymatic freeness enhancement
CN1116471C (zh) 1996-12-04 2003-07-30 诺沃奇梅兹北美公司 碱性酶精练棉织物
US20050003516A1 (en) * 2003-04-16 2005-01-06 Novozymes A/S Enzymatic treatment of paper making
US20110108222A1 (en) * 2009-11-11 2011-05-12 International Paper Company Effect of low dose xylanase on pulp in prebleach treatment process
US9856606B2 (en) * 2011-12-12 2018-01-02 Enzymatic Deinking Technologies, L.L.C. Enzymatic pre-treatment of market pulp to improve fiber drainage and physical properties
CN104233893B (zh) * 2014-09-03 2016-07-06 稼禾生物股份有限公司 一种清洁化高效纸浆清洗工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4617383A (en) * 1983-11-22 1986-10-14 Helmic, Inc. Method for degumming and bleaching decorticated plant bast fiber
US4687745A (en) * 1985-07-15 1987-08-18 Repligen Corporation Use of rLDM™ 1-6 and other ligninolytic enzymes in the treatment of mechanical pulps
FR2588886B1 (fr) * 1985-10-18 1988-06-24 Comite Eco Agric Prod Chanvre Procede de traitement biochimique de plantes fibreuses liberiennes ou cellulosiques et assimilees
FR2604198B1 (fr) * 1986-09-22 1989-07-07 Du Pin Cellulose Procede de traitement d'une pate papetiere par une solution enzymatique.
US4964955A (en) * 1988-12-21 1990-10-23 Cyprus Mines Corporation Method of reducing pitch in pulping and papermaking operations
JPH02118191A (ja) * 1988-10-26 1990-05-02 Jujo Paper Co Ltd 製紙用機械パルプの製造方法及び紙の製造方法
FI85041C (fi) * 1989-01-16 1992-02-25 Enso Gutzeit Oy Foerfarande foer att bringa pappersmassa pao en pappersmaskins vira.
FI86896B (fi) * 1989-05-04 1992-07-15 Enso Gutzeit Oy Foerfarande foer blekning av cellulosamassa.
NZ235679A (en) * 1989-10-18 1993-01-27 Int Paper Co Bleaching lignocellulosic pulp using (a) treatment with xylanase and (b) one or more chemical bleaching stages
FI89814C (fi) * 1990-02-02 1993-11-25 Enso Gutzeit Oy Foerfarande foer blekning av cellulosamassa

Also Published As

Publication number Publication date
FI912136A (fi) 1992-11-03
EP0512790A1 (en) 1992-11-11
DE69212529D1 (de) 1996-09-05
US5487812A (en) 1996-01-30
NO179842C (no) 1996-12-27
NO921737L (no) 1992-11-03
DE69212529T2 (de) 1996-11-28
ATE140985T1 (de) 1996-08-15
NO179842B (no) 1996-09-16
FI90670B (fi) 1993-11-30
ES2092636T3 (es) 1996-12-01
FI912136A0 (fi) 1991-05-02
EP0512790B1 (en) 1996-07-31
NO921737D0 (no) 1992-04-30

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