ATA89391A - METHOD FOR CHLORINE-FREE DECOLORATION OF MASS-DYED PAPERS AND SELF-COPYING PAPERS - Google Patents

METHOD FOR CHLORINE-FREE DECOLORATION OF MASS-DYED PAPERS AND SELF-COPYING PAPERS

Info

Publication number
ATA89391A
ATA89391A AT89391A AT89391A ATA89391A AT A89391 A ATA89391 A AT A89391A AT 89391 A AT89391 A AT 89391A AT 89391 A AT89391 A AT 89391A AT A89391 A ATA89391 A AT A89391A
Authority
AT
Austria
Prior art keywords
papers
decoloration
chlorine
self
mass
Prior art date
Application number
AT89391A
Other languages
German (de)
Other versions
AT400155B (en
Original Assignee
Chemiefaser Lenzing Ag
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 Chemiefaser Lenzing Ag filed Critical Chemiefaser Lenzing Ag
Priority to AT0089391A priority Critical patent/AT400155B/en
Publication of ATA89391A publication Critical patent/ATA89391A/en
Application granted granted Critical
Publication of AT400155B publication Critical patent/AT400155B/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
    • 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C5/02—Working-up 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

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AT0089391A 1991-04-29 1991-04-29 Process for chlorineless decolorization of pulp-dyed papers and carbonless copy papers AT400155B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT0089391A AT400155B (en) 1991-04-29 1991-04-29 Process for chlorineless decolorization of pulp-dyed papers and carbonless copy papers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0089391A AT400155B (en) 1991-04-29 1991-04-29 Process for chlorineless decolorization of pulp-dyed papers and carbonless copy papers

Publications (2)

Publication Number Publication Date
ATA89391A true ATA89391A (en) 1995-02-15
AT400155B AT400155B (en) 1995-10-25

Family

ID=3502259

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0089391A AT400155B (en) 1991-04-29 1991-04-29 Process for chlorineless decolorization of pulp-dyed papers and carbonless copy papers

Country Status (1)

Country Link
AT (1) AT400155B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2901942B1 (en) * 1979-01-19 1979-08-16 Voith Gmbh J M Process for recycling waste paper
DE3001862A1 (en) * 1980-01-19 1981-07-23 J.M. Voith Gmbh, 7920 Heidenheim Used paper recycling - uses a disinfectant during initial sorting

Also Published As

Publication number Publication date
AT400155B (en) 1995-10-25

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties
ELJ Ceased due to non-payment of the annual fee