CH273962A - Bleaching process. - Google Patents

Bleaching process.

Info

Publication number
CH273962A
CH273962A CH273962DA CH273962A CH 273962 A CH273962 A CH 273962A CH 273962D A CH273962D A CH 273962DA CH 273962 A CH273962 A CH 273962A
Authority
CH
Switzerland
Prior art keywords
bleaching process
bleaching
Prior art date
Application number
Other languages
French (fr)
Inventor
Works The Mathieson Alkali
Original Assignee
Mathieson Alkali Works
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 Mathieson Alkali Works filed Critical Mathieson Alkali Works
Publication of CH273962A publication Critical patent/CH273962A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
    • D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
    • D06L4/24—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CH273962D 1938-09-12 1947-08-27 Bleaching process. CH273962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US229601A US2166330A (en) 1938-09-12 1938-09-12 Method of bleaching

Publications (1)

Publication Number Publication Date
CH273962A true CH273962A (en) 1951-03-15

Family

ID=22861931

Family Applications (1)

Application Number Title Priority Date Filing Date
CH273962D CH273962A (en) 1938-09-12 1947-08-27 Bleaching process.

Country Status (2)

Country Link
US (1) US2166330A (en)
CH (1) CH273962A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468771A (en) * 1944-04-03 1949-05-03 Univ Minnesota Process of preparing fibers and yarns
US2513788A (en) * 1947-01-31 1950-07-04 Brown Co Bleaching of sulfate wood pulp
US2587064A (en) * 1949-03-09 1952-02-26 Int Paper Canada Method of bleaching wood pulp
BE518419A (en) * 1952-03-26
US2741537A (en) * 1952-03-26 1956-04-10 Olin Mathieson Available chlorine single-stage bleaching of sulfate pulp
US2799580A (en) * 1953-11-25 1957-07-16 M H Treadwell Co Inc Process for the disincrustation of fibrous vegetable materials
US2903326A (en) * 1956-10-17 1959-09-08 Pennsalt Chemicals Corp Improved process for bleaching cellulose pulp using chlorate
US3061504A (en) * 1960-03-21 1962-10-30 Int Paper Canada Method of removing resin from wood pulp
US3269891A (en) * 1965-08-31 1966-08-30 American Cyanamid Co Fixing dry strength resin on fibers by alum in the presence of a buffer
US3632469A (en) * 1969-06-05 1972-01-04 Ethyl Corp Process for the manufacture of dissolving grade pulp
US4039374A (en) * 1975-08-29 1977-08-02 Union Camp Corporation Bleaching of cellulosic pulp fibers with chlorine dioxide in the presence of a vanadium compound
US4199399A (en) * 1976-04-19 1980-04-22 Process Evaluation & Development Corp. Method for preparing bagasse dissolving pulps and producing rayon having a degree of polymerization of at least 800 therefrom
US4325783A (en) * 1978-03-30 1982-04-20 Erco Industries Limited Bleaching procedure using chlorine dioxide and chlorine solutions
US4299653A (en) * 1979-04-16 1981-11-10 Erco Industries Limited Method of bleaching pulp with an aqueous solution of chlorine dioxide and chlorine followed by a chlorine solution
US20060201642A1 (en) * 2005-03-08 2006-09-14 Andritz Inc. Methods of treating chemical cellulose pulp

Also Published As

Publication number Publication date
US2166330A (en) 1939-07-18

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