EP0246985B1 - Verfahren und Zusammensetzung zum Bleichen von Wäsche - Google Patents

Verfahren und Zusammensetzung zum Bleichen von Wäsche Download PDF

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Publication number
EP0246985B1
EP0246985B1 EP87420124A EP87420124A EP0246985B1 EP 0246985 B1 EP0246985 B1 EP 0246985B1 EP 87420124 A EP87420124 A EP 87420124A EP 87420124 A EP87420124 A EP 87420124A EP 0246985 B1 EP0246985 B1 EP 0246985B1
Authority
EP
European Patent Office
Prior art keywords
bath
calcium
bleaching
composition
process according
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
EP87420124A
Other languages
English (en)
French (fr)
Other versions
EP0246985A2 (de
EP0246985A3 (en
Inventor
Bernard Dubreux
Françoise Chosson
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.)
Arkema France SA
Original Assignee
Atochem SA
Elf Atochem SA
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 Atochem SA, Elf Atochem SA filed Critical Atochem SA
Publication of EP0246985A2 publication Critical patent/EP0246985A2/de
Publication of EP0246985A3 publication Critical patent/EP0246985A3/fr
Application granted granted Critical
Publication of EP0246985B1 publication Critical patent/EP0246985B1/de
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3942—Inorganic per-compounds

Definitions

  • the present invention relates to laundry laundering using a peroxide compound.
  • TAED tetra-acetylethylenediamine
  • TAGU tetraacetylglycoluryl
  • AP 31 ⁇ -acetoxy- ⁇ -methyl-N-N'-diacetylmalonamide
  • sodium perborate which is by far the most widely used peroxidized bleaching agent to date, is well known to be the source of pollution caused by the presence of boron in waste water.
  • US Pat. No. 3,230,171 describes a bleaching composition comprising calcium peroxide and potassium pyrosulfate in a ratio such that in aqueous media the bleaching is carried out at a pH of between 9.5 and 1.
  • the process according to the invention like the compositions which take part in its realization and are another object of the invention, lead to whitening effects superior to those obtained by the peroxide compounds used to date, while avoiding the pollution due to the most used of them, sodium perborate, and the use of complex activators.
  • the process according to the invention for bleaching laundry in a bath using a peroxide compound is characterized in that bleaching is carried out at a pH of between 10.5 and 12.5 in the presence, as a peroxide compound, CA02 calcium peroxide introduced in hydrated form or not so that the quantity of calcium per liter of bath is between 3 and 1.10- 1.10- 2 gram atom.
  • the bath may also contain, as is most often the case in practice, in kind and in quantity, all or part of the products known to be usually present in a bath with detergent action, other than peroxidized bleaching agents, such as as surfactants and accompanying products: alkylbenzenesulfonates, alkylarylbenzenesulfonates, ethoxylated fatty alcohols, antiredeposition agents, brighteners, perfumes, sequestering agents, alkaline phosphates, etc. .... Examples of known detergents are for example given by Marshall Sittig in DETERGENT MANUFACTURE , Noyes Data Corporation, 1976.
  • the sequestering agents of the alkaline-earth ions are chosen for example from the alkaline salts of polyphosphoric acids such as sodium tripolyphosphate designated in the following by TPP, Na, the alkaline salts of acids polyamine carboxylic or polyoxycarboxylic acids such as those of ethylenediaminetetraacetic acid, the pentasodium salt of diethylenetriaminepentaacetic acid, the trisodium salt of nitrilotriacetic acid, or even sodium citrate.
  • polyphosphoric acids such as sodium tripolyphosphate designated in the following by TPP, Na
  • the alkaline salts of acids polyamine carboxylic or polyoxycarboxylic acids such as those of ethylenediaminetetraacetic acid, the pentasodium salt of diethylenetriaminepentaacetic acid, the trisodium salt of nitrilotriacetic acid, or even sodium citrate.
  • TPP Na is well suited in the context of the invention.
  • the bleaching effect is particularly improved by applying the process of the invention when the complexing agent of alkaline earth ions is brought into play in an amount at least equal to that allowing the sequestration of calcium ions in solution in the bath.
  • a composition according to the invention containing a peroxidized compound for bleaching laundry is characterized in that it contains, as peroxidized compound, calcium peroxide Ca0 2 in hydrated form or not in an amount such that it allows the formation of 'a bath which, at pH between 10.5 and 12.5 contains per liter of 1.10-3 to 1.10-2 gram atoms of calcium in order to carry out the process described above.
  • compositions may also comprise in nature and in quantity all or part of the products known to be usually present in a bath with detergent action, other than the peroxide bleaching compounds hitherto used, such as those mentioned above.
  • It can thus comprise sequestering agents of alkaline earth ions, preferably in quantity at less equal to that corresponding to the sequestration of calcium ions in solution in the bath formed from it.
  • Sodium tripolyphosphate is particularly suitable in a composition according to the invention as a sequestering agent of calcium ions.
  • a composition of the invention allows the formation of the bleaching bath by simultaneous addition of its constituents.
  • the formation of the bath can be carried out anyway by bringing its constituents into contact in any order.
  • calcium peroxide in hydrated or non-hydrated form can be added to the other constituents, including the sequestering agent where appropriate, dissolved in water before this addition.
  • the calcium peroxide used in hydrated form or not in carrying out the process or the composition of the invention can be prepared in any known manner. Examples of preparation are indicated for example in the NEW TREATY OF MINERAL CHEMISTRY, P. Pascal, volume IV, 1958, pp. 399-400 or in PEROXIDES, SUPEROXIDES, and OZONIDES of ALKALI and ALKALINE EARTH METALS, II'ya Ivanovich Vol'nov, Plenum Press, New-York 1966, pp. 58-60.
  • the bleaching operation according to the invention is followed by the rinsing and wringing operations before drying as they are conventionally practiced.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Cosmetics (AREA)
  • Catalysts (AREA)

Claims (14)

1. Verfahren zum Bleichen von Wäsche in einem Bad mittels einer peroxidierten Verbindung, dadurch gekennzeichnet, daß das Bleichen bei einem pH zwischen 10,5 und 12,5 in Gegenwart von Calciumperoxid als peroxidierte Verbindung in hydratisierter oder nicht hydratisierter Form erfolgt, das in der Weise eingebracht wird, daß die Menge an Calcium pro Liter des Bads zwischen 1.10-3 und 1.10-2 Grammatom liegt.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der pH des Bads höchstens 11,5 ist.
3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Temperatur des Bads zwischen 30 und 70°C liegt.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Bad ein Maskierungsmittel für Erdalkaliionen enthält.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß das Maskierungsmittel für Erdalkaliionen wenigstens in einer solchen Menge vorliegt, die die Maskierung der in dem Bad gelösten Calciumionen ermöglicht.
6. Verfahren nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, daß das Maskierungsmittel für Erdalkaliionen Natriumtripolyphosphat ist.
7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Calcium in Form einer Verbindung eingesetzt wird, die der Formel Ca02, 8H20 entspricht.
8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Bad ein Detergenz enthält.
9. Zusammensetzung mit Waschwirkung für das Bleichen häuslicher Wäsche enthaltend eine peroxidierte Verbindung, dadurch gekennzeichnet, daß sie als peroxidierte Verbindung Calciumperoxid in hydratisierter oder nicht hydratisierter Form in solcher Menge enthält, die die Bindung eines Bads ermöglicht, das bei einem pH zwischen 10,5 und 12,5 1.10-3 bis 1.10-2 Grammaton Calcium pro Liter enthält.
10. Zusammensetzung nach Anspruch 9, dadurch gekennzeichnet, daß das Calcium in Form einer Verbindung eingesetzt wird, die der Formel Ca02, 8H20 entspricht.
11. Zusammensetzung nach einem der Ansprüche 9 und 10, dadurch gekennzeichnet, daß sie ein Maskierungsmittel für Erdalkaliionen enthält.
12. Zusammensetzung nach Anspruch 11, dadurch gekennzeichnet, daß das Maskierungsmittel für Erdalkaliionen wenigstens in einer solchen Menge vorliegt, die die Maskierung der Calciumionen ermöglicht, die in dem aus der genannten Zusammensetzung gebildeten Bad in Lösung sind.
13. Zusammensetzung nach einem der Ansprüche 11 und 12, dadurch gekennzeichnet, daß das Maskierungsmittel Natriumtripolyphosphat ist.
14. Zusammensetzung nach einem der Ansprüche 9 bis 13, dadurch gekennzeichnet, daß sie ein Detergenz enthält.
EP87420124A 1986-05-15 1987-05-12 Verfahren und Zusammensetzung zum Bleichen von Wäsche Expired EP0246985B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8607151A FR2598728B1 (fr) 1986-05-15 1986-05-15 Procede et composition pour le blanchiment de linge domestique
FR8607151 1986-05-15

Publications (3)

Publication Number Publication Date
EP0246985A2 EP0246985A2 (de) 1987-11-25
EP0246985A3 EP0246985A3 (en) 1988-02-24
EP0246985B1 true EP0246985B1 (de) 1989-10-25

Family

ID=9335378

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87420124A Expired EP0246985B1 (de) 1986-05-15 1987-05-12 Verfahren und Zusammensetzung zum Bleichen von Wäsche

Country Status (11)

Country Link
US (1) US4784787A (de)
EP (1) EP0246985B1 (de)
JP (1) JPS62299563A (de)
CN (1) CN1005637B (de)
AU (1) AU603100B2 (de)
CA (1) CA1312179C (de)
DE (2) DE3760878D1 (de)
ES (1) ES2000631B3 (de)
FR (1) FR2598728B1 (de)
GR (2) GR880300020T1 (de)
PT (1) PT84867B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019289A (en) * 1988-11-25 1991-05-28 The Clorox Company Stable liquid detergent containing insoluble oxidant
US4891147A (en) * 1988-11-25 1990-01-02 The Clorox Company Stable liquid detergent containing insoluble oxidant
DE4035813A1 (de) * 1990-11-10 1992-05-14 Akzo Gmbh Sauerstoffbleichung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230171A (en) * 1963-03-04 1966-01-18 Dow Chemical Co Bleaching composition
JPS5122984B2 (de) * 1972-07-29 1976-07-14
US4120650A (en) * 1977-12-05 1978-10-17 Basf Wyandotte Corporation Laundering process for dual bleaching stained fabrics

Also Published As

Publication number Publication date
US4784787A (en) 1988-11-15
CA1312179C (fr) 1993-01-05
AU7292587A (en) 1987-11-19
AU603100B2 (en) 1990-11-08
FR2598728A1 (fr) 1987-11-20
GR880300020T1 (en) 1988-10-18
PT84867B (pt) 1990-02-08
DE3760878D1 (en) 1989-11-30
PT84867A (fr) 1987-06-01
EP0246985A2 (de) 1987-11-25
FR2598728B1 (fr) 1991-04-19
EP0246985A3 (en) 1988-02-24
CN1005637B (zh) 1989-11-01
JPH0219226B2 (de) 1990-05-01
GR3000201T3 (en) 1990-12-31
ES2000631A4 (es) 1988-03-16
DE246985T1 (de) 1988-04-28
ES2000631B3 (es) 1990-02-16
JPS62299563A (ja) 1987-12-26
CN87103609A (zh) 1987-11-25

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