GB968806A - Improvements in or relating to the bleaching of textile fibres - Google Patents

Improvements in or relating to the bleaching of textile fibres

Info

Publication number
GB968806A
GB968806A GB14208/63A GB1420863A GB968806A GB 968806 A GB968806 A GB 968806A GB 14208/63 A GB14208/63 A GB 14208/63A GB 1420863 A GB1420863 A GB 1420863A GB 968806 A GB968806 A GB 968806A
Authority
GB
United Kingdom
Prior art keywords
acid anhydride
peroxy compound
deg
contain
active oxygen
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
GB14208/63A
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 FR894538A priority Critical patent/FR1328962A/en
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of GB968806A publication Critical patent/GB968806A/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
    • D06L4/12Bleaching 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

Textile fibres are bleached by treating them with an aqueous solution containing a peroxy compound and a di-carboxylic acid anhydride at least one hydrogen atom of which is substituted by an electronegative group, e.g. a No2-, Cl-, Br-, HSO3- or Na So3- group. The peroxy compound may be a monohydrated or tetrahydrated perborate, a percarbonate, a perpyrophosphate, urea peroxyhydrate, hydrogen peroxide or a mineral or organic peroxide. Suitable substituted dicarboxylic acid anhydrides are 3-introphthelic acid anhydride, 4-intro phthalic acid anhydride and 4-chlorophthalic acid anhydride and mixtures thereof. The bleaching solution, which may contain the peroxy compound in a concentration such that the bath has an active oxygen content of 20-500 mg of active oxygen per litre, is preferably adjusted to a pH of 7-11 and maintained at a temperature of 30 DEG -80 DEG C. The solution may contain 0.4-2 molecules of substituted dicarboxylic acid anhydride per molecule of peroxy compound. Specification 550,490 is referred to.
GB14208/63A 1962-04-14 1963-04-09 Improvements in or relating to the bleaching of textile fibres Expired GB968806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR894538A FR1328962A (en) 1962-04-14 1962-04-14 A process for bleaching textile fibers and novel compositions used in this process

Publications (1)

Publication Number Publication Date
GB968806A true GB968806A (en) 1964-09-02

Family

ID=8776927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14208/63A Expired GB968806A (en) 1962-04-14 1963-04-09 Improvements in or relating to the bleaching of textile fibres

Country Status (5)

Country Link
US (1) US3298775A (en)
BE (1) BE630532A (en)
DE (1) DE1444001A1 (en)
FR (1) FR1328962A (en)
GB (1) GB968806A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3528115A (en) * 1967-12-22 1970-09-15 Du Pont Bleaching fabrics with peracetic acid formed in situ thereon

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111651A (en) * 1977-10-03 1978-09-05 Fmc Corporation Sulfonic anhydrides in peroxygen bleaching
US4110074A (en) * 1977-10-03 1978-08-29 Fmc Corporation Mixed carboxylic/sulfonic anhydrides in peroxygen bleaching
US4207070A (en) * 1978-10-10 1980-06-10 Fmc Corporation Peroxygen bleaching and compositions therefor
US4202786A (en) * 1978-12-22 1980-05-13 Fmc Corporation Peroxygen bleaching and compositions therefor
US4212757A (en) * 1978-12-22 1980-07-15 Fmc Corporation Peroxygen bleaching and compositions therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3528115A (en) * 1967-12-22 1970-09-15 Du Pont Bleaching fabrics with peracetic acid formed in situ thereon

Also Published As

Publication number Publication date
US3298775A (en) 1967-01-17
BE630532A (en)
DE1444001A1 (en) 1969-04-30
FR1328962A (en) 1963-06-07

Similar Documents

Publication Publication Date Title
Barr et al. Hydrogen atoms in the radiolysis of water
Yuan et al. Kinetics of peracetic acid decomposition: part I: spontaneous decomposition at typical pulp bleaching conditions
US5227022A (en) Process for increasing pulp brightness with zeolites and easily decomposable organic chelating agents
US3386915A (en) Process for the manufacturing of chlorine dioxide in solution and the use of the solution thus obtained
Hodgson et al. Reversal of the superoxide dismutase reaction
US2347434A (en) Stabilization of peracid solutions
EP0682696B1 (en) Oxidising agents
CA2099513A1 (en) Delignification process for chemical pulp
US3663357A (en) Bleaching of mechanical cellulosic pulp with ozone in the presence of a peroxygen compound
AR245756A1 (en) Stable, concentrated, liquid dispersions of anionic dyestuffs
US3251731A (en) Bleaching of wood pulp with a sequestering agent and hydrogen peroxide
SE500042C2 (en) Process for the continuous production of chlorine dioxide
ES447857A1 (en) Bleaching composition
CA2219334A1 (en) Process for preparing a chlorine-dioxide-containing disinfectant solution for water treatment
EP0009839A1 (en) Alkaline aqueous hydrogen peroxide solutions stabilised against decomposition
ES454030A1 (en) Process for the treatment of water
GB1524013A (en) Stabilisation of solutions of peroxidic bleaching compounds
US3864271A (en) Stabilized acidic hydrogen peroxide solutions
ES2055682T3 (en) Procedure and reactor for the optimized ozonation of water intended for human consumption.
SE9002802D0 (en) Process for the production of chlorine dioxide
SE9001187D0 (en) Oxygen bleaching with between stage washing
GB974073A (en) Bleaching of cellulosic material
GB1307467A (en) Oxidation of cellulosic pulp
TR200101823T2 (en) Polyoxometalates and air or molecular oxygen bleach do.
RU2025547C1 (en) Method for bleaching cellulose