CA2036313A1 - Method for processing mixtures of secondary fibers and mechanical pulps - Google Patents

Method for processing mixtures of secondary fibers and mechanical pulps

Info

Publication number
CA2036313A1
CA2036313A1 CA2036313A CA2036313A CA2036313A1 CA 2036313 A1 CA2036313 A1 CA 2036313A1 CA 2036313 A CA2036313 A CA 2036313A CA 2036313 A CA2036313 A CA 2036313A CA 2036313 A1 CA2036313 A1 CA 2036313A1
Authority
CA
Canada
Prior art keywords
pulp
secondary fibers
mechanical pulps
refiner
mechanical
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.)
Granted
Application number
CA2036313A
Other languages
French (fr)
Other versions
CA2036313C (en
Inventor
Kwei-Nam Law
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAW KWEI NAM
Original Assignee
LAW KWEI NAM
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 LAW KWEI NAM filed Critical LAW KWEI NAM
Priority to CA 2036313 priority Critical patent/CA2036313C/en
Publication of CA2036313A1 publication Critical patent/CA2036313A1/en
Application granted granted Critical
Publication of CA2036313C publication Critical patent/CA2036313C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/32—Defibrating by other means of waste paper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

A novel method, based on the rubbing action in a refiner, for disintegration and deinking mixtures of recovered or secondary fibers, primarily used newspapers and printing-writing papers, and mechanical pulps, such as stone groundwood pulp, refiner mechanical pulp, thermomechanical pulp, chemithermomechanical pulp and chemimechanical pulp, permitting to produce a new grade of pulp furnish of better quality and more economical for the production of newsprint without the use of conventional deinking equipment, is described.
CA 2036313 1991-02-14 1991-02-14 Method for processing mixtures of secondary fibers and mechanical pulps Expired - Fee Related CA2036313C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2036313 CA2036313C (en) 1991-02-14 1991-02-14 Method for processing mixtures of secondary fibers and mechanical pulps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2036313 CA2036313C (en) 1991-02-14 1991-02-14 Method for processing mixtures of secondary fibers and mechanical pulps

Publications (2)

Publication Number Publication Date
CA2036313A1 true CA2036313A1 (en) 1992-08-15
CA2036313C CA2036313C (en) 1995-12-12

Family

ID=4146999

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2036313 Expired - Fee Related CA2036313C (en) 1991-02-14 1991-02-14 Method for processing mixtures of secondary fibers and mechanical pulps

Country Status (1)

Country Link
CA (1) CA2036313C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114717868A (en) * 2022-02-21 2022-07-08 江苏理文造纸有限公司 Medium-low concentration mixed pulping process
CN118374997A (en) * 2022-12-08 2024-07-23 润华(江苏)新材料有限公司 Polyarylate fiber pulp, preparation method and application thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5582681A (en) 1994-06-29 1996-12-10 Kimberly-Clark Corporation Production of soft paper products from old newspaper
US6001218A (en) 1994-06-29 1999-12-14 Kimberly-Clark Worldwide, Inc. Production of soft paper products from old newspaper
US6074527A (en) 1994-06-29 2000-06-13 Kimberly-Clark Worldwide, Inc. Production of soft paper products from coarse cellulosic fibers
US6296736B1 (en) 1997-10-30 2001-10-02 Kimberly-Clark Worldwide, Inc. Process for modifying pulp from recycled newspapers
US6387210B1 (en) 1998-09-30 2002-05-14 Kimberly-Clark Worldwide, Inc. Method of making sanitary paper product from coarse fibers
CN108086027A (en) * 2017-12-11 2018-05-29 安徽比伦生活用纸有限公司 A kind of methods of beating for improving softwood pulp beating degree

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114717868A (en) * 2022-02-21 2022-07-08 江苏理文造纸有限公司 Medium-low concentration mixed pulping process
CN118374997A (en) * 2022-12-08 2024-07-23 润华(江苏)新材料有限公司 Polyarylate fiber pulp, preparation method and application thereof

Also Published As

Publication number Publication date
CA2036313C (en) 1995-12-12

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed