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GB781716A - Bleaching method - Google Patents

Bleaching method

Info

Publication number
GB781716A
GB781716A GB15322/55A GB1532255A GB781716A GB 781716 A GB781716 A GB 781716A GB 15322/55 A GB15322/55 A GB 15322/55A GB 1532255 A GB1532255 A GB 1532255A GB 781716 A GB781716 A GB 781716A
Authority
GB
United Kingdom
Prior art keywords
acid
treated
heated
fibres
bleaching compound
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
GB15322/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB781716A publication Critical patent/GB781716A/en
Expired legal-status Critical Current

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
    • 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
    • D06L4/26—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 combined with specific additives
    • 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
    • D06L4/23—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 hypohalogenites

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Paper (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

Fibrous material is impregnated uniformly with an acid, treated superficially with a chlorine-containing bleaching compound and then heated. The material may be cotton, flax, hemp, jute, nylon, perlon or "half stuff" used in paper manufacture. The process may follow a desizing treatment with basic reagents, in which case the customary neutralization of the basic compounds, e.g. caustic soda, is effected with an excess of acid, e.g. formic or phosphoric acid. The material is then impregnated with the bleaching compound, e.g. sodium chlorite or hypochlorite solution, which may contain formic acid and which may be heated, and the material is afterwards heated. It is stated that, since they are saturated with an acid, the fibres are only treated superficially by the bleaching compound. Rayon fibres may be desized with a composition comprising sodium carbonate, trisodium phosphate, sodium hypochlorite, and a wetting agent and may then be treated with a near-boiling solution of formic acid prior to the bleaching step. Cellulose fibres may be treated in a flocculent state.
GB15322/55A 1954-06-01 1955-05-27 Bleaching method Expired GB781716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1061283X 1954-06-01

Publications (1)

Publication Number Publication Date
GB781716A true GB781716A (en) 1957-08-21

Family

ID=9600092

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15322/55A Expired GB781716A (en) 1954-06-01 1955-05-27 Bleaching method

Country Status (4)

Country Link
US (1) US2864662A (en)
DE (1) DE1061283B (en)
FR (1) FR1105634A (en)
GB (1) GB781716A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993006293A1 (en) * 1991-09-16 1993-04-01 Olin Corporation Process for bleaching textiles with hypochlorite solutions
FI99148C (en) * 1995-12-18 1997-10-10 Metsae Serla Oy Process for making pulp

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA473980A (en) * 1951-05-29 O. Kauffmann Hans Methods of bleaching cotton goods
US73733A (en) * 1868-01-28 Wheaton luther
GB552711A (en) * 1940-09-18 1943-04-21 Mathieson Alkali Works Improvements in bleaching and finishing textiles
US2377171A (en) * 1940-09-28 1945-05-29 Champion Paper & Fibre Co Process of bleaching pulp
GB567774A (en) * 1942-08-24 1945-03-02 George Brainard Fowler Improvements in or relating to processes of treating cellulosic raw material, and the improved cellulosic fibres resulting therefrom
BE458752A (en) * 1945-05-15
US2521340A (en) * 1945-05-16 1950-09-05 Olin Mathieson Bleaching of cellulosic textiles
FR959544A (en) * 1947-02-01 1950-03-31
DE843392C (en) * 1950-05-28 1952-07-07 Bayer Ag Process for bleaching dyed cellulose-containing textiles

Also Published As

Publication number Publication date
FR1105634A (en) 1955-12-06
US2864662A (en) 1958-12-16
DE1061283B (en) 1959-07-16

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