GB934047A - Process for the bleaching and shrinkproofing of wool - Google Patents

Process for the bleaching and shrinkproofing of wool

Info

Publication number
GB934047A
GB934047A GB10877/60A GB1087760A GB934047A GB 934047 A GB934047 A GB 934047A GB 10877/60 A GB10877/60 A GB 10877/60A GB 1087760 A GB1087760 A GB 1087760A GB 934047 A GB934047 A GB 934047A
Authority
GB
United Kingdom
Prior art keywords
solution
weight
treatment
chlorite
wool
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
GB10877/60A
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.)
CT DE RECH S TEXTILES
Institut Textile de France
Original Assignee
CT DE RECH S TEXTILES
Institut Textile de France
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 CT DE RECH S TEXTILES, Institut Textile de France filed Critical CT DE RECH S TEXTILES
Publication of GB934047A publication Critical patent/GB934047A/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
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/30—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with oxides of halogens, oxyacids of halogens or their salts, e.g. with perchlorates
    • 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
    • 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
    • D06L4/30—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using reducing agents

Abstract

Wool is bleached and shrink-proofed by introducing and submerging it in water, the water and the resulting treating bath being at 13 DEG -25 DEG C., introducing progressively a dilute aqueous solution of an acid with continuous agitation until a pH of 2-4,5 is reached, con-tinuing agitation, introducing slowly an aqueous chlorite solution of pH 8-9 and free from ClO2 until the wool turns pink whereby the pH of the chlorite solution is lowered without evolution of ClO2 and the bath remains sub-stantially colourless throughout the treatment, rinsing with water and treating the pink wool with an aqueous reducing solution at a tempera-ture of 45 DEG -60 DEG C. The acid may be phosphoric, sulphuric, formic or acetic acid and may be in the form of a dilute aqueous solution having a concentration of 5-20% by weight. When acetic acid is used 5-40% of sodium acetate based on the weight of the undiluted acid may be added to the solution to serve as a buffer at the indicated pH. The chlorite solution may be an aqueous solution of an alkali metal chlorite having a concentration of 5-20% by weight and the reducing solution may be a 0,2-1,5% by weight aqueous solution of an alkali metal bisulphite or hydrosulphite or a mixture thereof. The treating bath and bleaching solution may also contain 0,02-0,1% by weight of a wetting agent, e.g. RCOOCH2CH2SO3Na, RCONHCH2CH2SO3Na, RCH2SO4Na or RCH2SO3Na in which R is an alkyl or alkenyl radical containing 12-20 carbon atoms, an alkyl aryl sulphonate, an alkyl p phosphate salt, lauryl polyethoxy ether or n-octadecyl diso-dium sulphosuccinamate, and 0,005-0,05% by weight of hydroquinone may be added to the acidic chlorite treating bath. The treatment may be combined with an additional chlorina-tion treatment with a sodium hypochlorite solution followed by treatment with sodium hydrosulphite solution or with a treatment with a proteolytic enzyme, e.g. papain or trypsin, which may be added to the reducing solution together with 0,2-1% by weight of sodium bicarbonate. Specifications 561,475 and 743,927 are referred to.
GB10877/60A 1959-03-26 1960-03-28 Process for the bleaching and shrinkproofing of wool Expired GB934047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US802001A US3097049A (en) 1959-03-26 1959-03-26 Process for bleaching and shrinkproofing wool

Publications (1)

Publication Number Publication Date
GB934047A true GB934047A (en) 1963-08-14

Family

ID=25182581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10877/60A Expired GB934047A (en) 1959-03-26 1960-03-28 Process for the bleaching and shrinkproofing of wool

Country Status (5)

Country Link
US (1) US3097049A (en)
BE (1) BE589075A (en)
FR (1) FR1252966A (en)
GB (1) GB934047A (en)
IT (1) IT627371A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1230517B (en) * 1963-08-17 1966-12-15 Hoechst Ag Process for depilation and loosening of skins and fur
FR2359927A1 (en) * 1976-07-26 1978-02-24 Protex Manuf Prod Chimiq NEW PRODUCTS TO ACTIVATE CHLORITE BLEACHING BATHS
BRPI0410758A (en) * 2003-05-19 2006-06-27 Procter & Gamble compositions, devices and methods for stabilizing halogen dioxide and increasing its effectiveness

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373974A (en) * 1941-02-07 1945-04-17 Wool Ind Res Association Process for imparting to wool a gloss similar to that of natural silk
LU28351A1 (en) * 1946-03-19
FR959544A (en) * 1947-02-01 1950-03-31
GB682694A (en) * 1949-01-14 1952-11-12 Olin Mathieson Improvements in or relating to bleaching processes

Also Published As

Publication number Publication date
US3097049A (en) 1963-07-09
IT627371A (en)
FR1252966A (en) 1961-02-03
BE589075A (en) 1960-07-18

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