FI51722C - Method for bleaching paper. - Google Patents

Method for bleaching paper.

Info

Publication number
FI51722C
FI51722C FI651882A FI188265A FI51722C FI 51722 C FI51722 C FI 51722C FI 651882 A FI651882 A FI 651882A FI 188265 A FI188265 A FI 188265A FI 51722 C FI51722 C FI 51722C
Authority
FI
Finland
Prior art keywords
bleaching paper
bleaching
paper
Prior art date
Application number
FI651882A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI51722B (en
Inventor
Morris Wayman
William Howard Rapson
Original Assignee
Electric Reduction Co
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 Electric Reduction Co filed Critical Electric Reduction Co
Application granted granted Critical
Publication of FI51722B publication Critical patent/FI51722B/fi
Publication of FI51722C publication Critical patent/FI51722C/en

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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/02—Chemical or biochemical treatment
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • 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
    • D21H21/14—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 characterised by function or properties in or on the paper
    • D21H21/32—Bleaching agents
    • 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
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
    • D21H5/1272—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of fibres which can be physically or chemically modified during or after web formation
    • D21H5/1281—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of fibres which can be physically or chemically modified during or after web formation by chemical treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI651882A 1964-08-13 1965-08-04 Method for bleaching paper. FI51722C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33090/64A GB1102456A (en) 1964-08-13 1964-08-13 Improvements in the bleaching of paper

Publications (2)

Publication Number Publication Date
FI51722B FI51722B (en) 1976-11-30
FI51722C true FI51722C (en) 1977-03-10

Family

ID=10348440

Family Applications (1)

Application Number Title Priority Date Filing Date
FI651882A FI51722C (en) 1964-08-13 1965-08-04 Method for bleaching paper.

Country Status (5)

Country Link
US (1) US3467575A (en)
BE (1) BE667858A (en)
FI (1) FI51722C (en)
GB (1) GB1102456A (en)
NO (1) NO118204B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635806A (en) * 1969-10-27 1972-01-18 Procter & Gamble Photochemical bleaching of polymaleate homopolymers and copolymers in the presence of a peracid
US3709778A (en) * 1971-01-12 1973-01-09 Atlantic Richfield Co Method for bleaching groundwood pulp with tertiary butyl hydroperoxide
FI90680C (en) * 1992-04-24 1994-03-10 Kymin Paperiteollisuus Oy Bleaching of paper web with peroxide
US7914646B2 (en) 2006-07-21 2011-03-29 Nalco Company Compositions and processes for paper production

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA461242A (en) * 1949-11-22 L. Mcewen Robert Bleached paper and method of bleaching the same
US1154851A (en) * 1915-04-19 1915-09-28 Edward P Foley Process of bleaching ground wood-pulp.
US1645061A (en) * 1924-08-21 1927-10-11 American Lakes Paper Company Method of bleaching paper pulp
US2125634A (en) * 1937-03-29 1938-08-02 Oxford Paper Co Method of bleaching pulp or paper webs
US2150926A (en) * 1937-07-03 1939-03-21 Buffalo Electro Chem Co Process of making and bleaching paper
US2347434A (en) * 1941-06-30 1944-04-25 Du Pont Stabilization of peracid solutions
US2492047A (en) * 1946-03-30 1949-12-20 Du Pont Bleaching wood pulp
US2598580A (en) * 1947-10-08 1952-05-27 Buffalo Electro Chem Co Bleaching or brightening a web of mixed fibers
US2862784A (en) * 1955-03-04 1958-12-02 Virginia Smelting Company Oxidative-reductive multi-stage bleaching of ground wood pulp
US2963395A (en) * 1958-03-31 1960-12-06 Crown Zellerbach Corp Process of bleaching lignocellulosic pulps
US2970882A (en) * 1958-12-03 1961-02-07 Kendall & Co Process for continuous purification of bulk fiber
US3085039A (en) * 1960-08-23 1963-04-09 Fmc Corp Process for the treatment of wood

Also Published As

Publication number Publication date
NO118204B (en) 1969-11-24
GB1102456A (en) 1968-02-07
FI51722B (en) 1976-11-30
BE667858A (en) 1965-12-01
US3467575A (en) 1969-09-16

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