GB2021661A - Method of recovering fibres - Google Patents

Method of recovering fibres

Info

Publication number
GB2021661A
GB2021661A GB7917298A GB7917298A GB2021661A GB 2021661 A GB2021661 A GB 2021661A GB 7917298 A GB7917298 A GB 7917298A GB 7917298 A GB7917298 A GB 7917298A GB 2021661 A GB2021661 A GB 2021661A
Authority
GB
United Kingdom
Prior art keywords
waste
bleaching
recovering fibres
fibres
recovering
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
GB7917298A
Other versions
GB2021661B (en
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.)
Wiggins Teape Group Ltd
Original Assignee
Wiggins Teape Group Ltd
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 Wiggins Teape Group Ltd filed Critical Wiggins Teape Group Ltd
Priority to GB7917298A priority Critical patent/GB2021661B/en
Publication of GB2021661A publication Critical patent/GB2021661A/en
Application granted granted Critical
Publication of GB2021661B publication Critical patent/GB2021661B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • B41M5/1246—Application of the layer, e.g. by printing
    • 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

  • Paper (AREA)

Abstract

Fibre recovery process for pressure- sensitive carbonless copying paper which comprises defibrating the waste in aqueous media, preferably in the presence of a cationic quaternary ammonium surface active agent, treating the waste with acid to destroy the microcapsules, and bleaching the defibrated waste with a bleaching agent.
GB7917298A 1978-05-22 1979-05-17 Method of recovering fibres Expired GB2021661B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7917298A GB2021661B (en) 1978-05-22 1979-05-17 Method of recovering fibres

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2124578 1978-05-22
GB7917298A GB2021661B (en) 1978-05-22 1979-05-17 Method of recovering fibres

Publications (2)

Publication Number Publication Date
GB2021661A true GB2021661A (en) 1979-12-05
GB2021661B GB2021661B (en) 1983-02-23

Family

ID=26255226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7917298A Expired GB2021661B (en) 1978-05-22 1979-05-17 Method of recovering fibres

Country Status (1)

Country Link
GB (1) GB2021661B (en)

Also Published As

Publication number Publication date
GB2021661B (en) 1983-02-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930517