GB890300A - Process for bleaching crude wood pulp, natural or synthetic fibres and textiles produced from or containing such fibres - Google Patents

Process for bleaching crude wood pulp, natural or synthetic fibres and textiles produced from or containing such fibres

Info

Publication number
GB890300A
GB890300A GB17002/59A GB1700259A GB890300A GB 890300 A GB890300 A GB 890300A GB 17002/59 A GB17002/59 A GB 17002/59A GB 1700259 A GB1700259 A GB 1700259A GB 890300 A GB890300 A GB 890300A
Authority
GB
United Kingdom
Prior art keywords
fibres
natural
wood pulp
salts
crude wood
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.)
Expired
Application number
GB17002/59A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB890300A publication Critical patent/GB890300A/en
Expired legal-status Critical Current

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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • 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
    • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives

Abstract

Natural or synthetic fibres, e.g. cotton, regenerated cellulose, polyesters and nylon, and textiles produced from or containing these fibres, and crude wood pulp, are bleached with an aqueous solution or dispersion of a peroxide compound which splits off active oxygen, e.g. hydrogen peroxide, sodium peroxide and salts of perboric, percarbonic and perphosphoric acids, in the presence of a water-soluble silicic acid ester. The silicic acid ester is preferably an alkoxy silane, e.g. tetrakis (2-methoxyethoxy)-silane. The aqueous solution or dispersion may also contain alkali or alkaline earth metal salts, e.g. Epsom salt. The treatment is preferably carried out in an alkaline medium, buffering salts, e.g. phosphates, being used for adjusting the pH value, at temperatures higher than 60 DEG C.
GB17002/59A 1958-05-29 1959-05-19 Process for bleaching crude wood pulp, natural or synthetic fibres and textiles produced from or containing such fibres Expired GB890300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED28208A DE1083221B (en) 1958-05-29 1958-05-29 Process for bleaching natural or synthetic fibers and textiles as well as cellulose and wood pulp with aqueous treatment baths containing peroxide

Publications (1)

Publication Number Publication Date
GB890300A true GB890300A (en) 1962-02-28

Family

ID=7039567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17002/59A Expired GB890300A (en) 1958-05-29 1959-05-19 Process for bleaching crude wood pulp, natural or synthetic fibres and textiles produced from or containing such fibres

Country Status (6)

Country Link
US (1) US3003910A (en)
CH (1) CH368463A (en)
DE (1) DE1083221B (en)
FR (1) FR1225313A (en)
GB (1) GB890300A (en)
NL (1) NL97796C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL84209C (en) * 1952-02-09 1900-01-01
NL266614A (en) * 1960-07-07
US3156654A (en) * 1961-06-19 1964-11-10 Shell Oil Co Bleaching
BE621901A (en) * 1961-08-31
DE1297065B (en) * 1963-07-06 1969-06-12 Degussa Process for washing and / or bleaching textiles
US3462344A (en) * 1966-05-31 1969-08-19 Fmc Corp Superbleaching of wood pulps
SE355614B (en) * 1970-05-13 1973-04-30 Mo Och Domsjoe Ab
US3951594A (en) * 1972-11-27 1976-04-20 Pennwalt Corporation Hydrogen peroxide bleaching solutions and process
FR2557605B1 (en) * 1983-12-29 1987-12-11 Atochem PROCESS FOR BLEACHING PAPER PULP BY HYDROGEN PEROXIDE
AT402827B (en) * 1995-12-22 1997-09-25 Chemiefaser Lenzing Ag CELLULOSE MOLDED BODY AND METHOD FOR THE PRODUCTION THEREOF

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US988874A (en) * 1909-12-02 1911-04-04 Hugo Henkel Process for removing printers' ink from printed paper by means of bleaching substances having an alkaline action.
US2097517A (en) * 1932-11-23 1937-11-02 Monsanto Chemicals Soluble hypochlorite composition
US2185632A (en) * 1937-04-12 1940-01-02 Ici Ltd Bleaching surfaces without immersion
US2559342A (en) * 1949-07-26 1951-07-03 Gen Electric Organo-silicon compositions

Also Published As

Publication number Publication date
US3003910A (en) 1961-10-10
NL97796C (en)
CH7325059A4 (en) 1962-12-29
CH368463A (en) 1963-05-31
FR1225313A (en) 1960-06-30
DE1083221B (en) 1960-06-15

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