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GB803796A - Continuous bleaching of textile fabrics made from vegetable fibres - Google Patents

Continuous bleaching of textile fabrics made from vegetable fibres

Info

Publication number
GB803796A
GB803796A GB21824/55A GB2182455A GB803796A GB 803796 A GB803796 A GB 803796A GB 21824/55 A GB21824/55 A GB 21824/55A GB 2182455 A GB2182455 A GB 2182455A GB 803796 A GB803796 A GB 803796A
Authority
GB
United Kingdom
Prior art keywords
solvent
sodium
bath
grams per
per litre
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
GB21824/55A
Inventor
Wilfred Arthur Stephen White
Norman Frederic Crowder
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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
Priority to BE549848D priority Critical patent/BE549848A/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB21824/55A priority patent/GB803796A/en
Priority to FR1159658D priority patent/FR1159658A/en
Publication of GB803796A publication Critical patent/GB803796A/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
    • D06L4/10Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • 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
    • D06L4/70Multi-step processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

Textile fabrics of vegetable fibres are treated, preferably in open width (1) with a bath of trichloroethylene or perchloroethylene, the entrained solvent being removed by passing the fabric through hot water; (2) with an aqueous bath of a hypochlorite at 40 DEG to 90 DEG C. and pH at least 9.0, and yielding 0.5 to 5 grams per litre available chlorine, the immersion time being from 15 seconds to 7 minutes; (3) with water (rinsing); and (4) with an aqueous solution of a per-compound at a pH of at least 11 followed by steaming. Steps (1) and (2) may be performed in the reverse order. Sodium hypochlorite may be used for step (2). The per-compound may be sodium peroxide, sodium percarbonate or hydrogen peroxide. The solvent in step (1) may be at 80 DEG to 87 DEG C. and may be circulated through a series of baths in opposite direction to the movement of the fabric through the baths. Surplus solvent is removed before entering the solvent recovery bath. The percompound solution is such as to yield at least 7 grams per litre available oxygen and has an alkalinity corresponding to at least 7.2 grams per litre sodium hydroxide and may contain sodium silicate and an anionic or neutral wetting agent such as an octylated cresol-ethylene oxide condensate. In an example, cotton duck is treated. Specifications 747,481 and 749,705 are referred to.
GB21824/55A 1955-07-28 1955-07-28 Continuous bleaching of textile fabrics made from vegetable fibres Expired GB803796A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE549848D BE549848A (en) 1955-07-28
GB21824/55A GB803796A (en) 1955-07-28 1955-07-28 Continuous bleaching of textile fabrics made from vegetable fibres
FR1159658D FR1159658A (en) 1955-07-28 1956-07-28 Continuous process for bleaching cellulosic textile materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21824/55A GB803796A (en) 1955-07-28 1955-07-28 Continuous bleaching of textile fabrics made from vegetable fibres

Publications (1)

Publication Number Publication Date
GB803796A true GB803796A (en) 1958-11-05

Family

ID=10169425

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21824/55A Expired GB803796A (en) 1955-07-28 1955-07-28 Continuous bleaching of textile fabrics made from vegetable fibres

Country Status (3)

Country Link
BE (1) BE549848A (en)
FR (1) FR1159658A (en)
GB (1) GB803796A (en)

Also Published As

Publication number Publication date
BE549848A (en)
FR1159658A (en) 1958-07-01

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