GB596192A - Improvements in or relating to the bleaching of cellulose fibres - Google Patents

Improvements in or relating to the bleaching of cellulose fibres

Info

Publication number
GB596192A
GB596192A GB19655/45A GB1965545A GB596192A GB 596192 A GB596192 A GB 596192A GB 19655/45 A GB19655/45 A GB 19655/45A GB 1965545 A GB1965545 A GB 1965545A GB 596192 A GB596192 A GB 596192A
Authority
GB
United Kingdom
Prior art keywords
bromide
bleached
hypochlorite
cotton cloth
vat
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
GB19655/45A
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.)
PALESTINE POTASH Ltd
Original Assignee
PALESTINE POTASH 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 PALESTINE POTASH Ltd filed Critical PALESTINE POTASH Ltd
Publication of GB596192A publication Critical patent/GB596192A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06LDRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
    • D06L4/22Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
    • D06L4/23Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using hypohalogenites
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06LDRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
    • D06L4/21Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen combined with specific additives

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

Cellulose fibres, e.g. textile fibres, yarns and fabrics, paper, cotton wool, wood pulp and straw are bleached by subjecting them to the action of an aqueous hypochlorite in the presence of a bromide. The bromide may be present at the beginning of the operation or may be added after an initial bleaching with hypochlorite alone, and may be produced in the vat by the addition to the latter of elementary bromine. In examples: (1) cotton cloth is bleached in sodium hypochlorite containing potassium bromide and after the initial bleaching more hypochlorite is added; (2) and (3) cotton cloth is bleached with hypochlorite, potassium bromide being added at an intermediate stage; (4) and (5) the first example is repeated using caustic soda and bromine water or a sodium hypobromite-bromide solution instead of potassium bromide; (6) cotton cloth is bleached in a vat p containing aqueous sodium hydroxide into which chlorine and bromide have been introduced; (7) cotton cloth is bleached in a vat prepared by introducing chlorine and bromine into an aqueous suspension of calcium hydroxide.
GB19655/45A 1944-10-31 1945-07-31 Improvements in or relating to the bleaching of cellulose fibres Expired GB596192A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL913139X 1944-10-31

Publications (1)

Publication Number Publication Date
GB596192A true GB596192A (en) 1947-12-30

Family

ID=11060286

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19655/45A Expired GB596192A (en) 1944-10-31 1945-07-31 Improvements in or relating to the bleaching of cellulose fibres

Country Status (2)

Country Link
FR (1) FR913139A (en)
GB (1) GB596192A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046767A1 (en) * 1980-02-11 1982-03-10 Glyco Chemicals Inc Low temperature bleaching.
US4353866A (en) 1980-11-05 1982-10-12 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes
US4384869A (en) 1980-11-05 1983-05-24 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes
US4420412A (en) * 1980-11-05 1983-12-13 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes
EP0195676A2 (en) * 1985-03-22 1986-09-24 Diversey Corporation Method of low temperature bleaching with reduced amounts of chlorine requiring reduced bleaching intervals

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046767A1 (en) * 1980-02-11 1982-03-10 Glyco Chemicals Inc Low temperature bleaching.
EP0046767A4 (en) * 1980-02-11 1982-07-06 Glyco Chemicals Inc Low temperature bleaching.
US4353866A (en) 1980-11-05 1982-10-12 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes
US4384869A (en) 1980-11-05 1983-05-24 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes
US4420412A (en) * 1980-11-05 1983-12-13 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes
EP0195676A2 (en) * 1985-03-22 1986-09-24 Diversey Corporation Method of low temperature bleaching with reduced amounts of chlorine requiring reduced bleaching intervals
EP0195676A3 (en) * 1985-03-22 1988-08-24 Diversey Corporation Method of low temperature bleaching with reduced amounts of chlorine requiring reduced bleaching intervals

Also Published As

Publication number Publication date
FR913139A (en) 1946-08-29

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