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
  • C11D9/00—Compositions of detergents based essentially on soap
  • C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
  • C11D9/42—Per-compounds
• • 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
  • C11D3/3945—Organic per-compounds

Definitions

• the present invention relates to the field of detergency and more particularly to a detergent composition based on soap and comprising a bleaching agent.
• bleaching agents are commonly used which release active oxygen.
• bleaching agents are in particular peroxygen compounds, such as perborates, percarbonates, persulfates, perphosphates and the like, perborates being the most used bleaching agents.
• Patent application EP 106 584 relates to bleaching compositions comprising monoperoxyphthalic acid and a bleach activator.
• the detergent composition according to the invention essentially comprises a soap, a dispersing agent for calcareous soaps and an organic peroxyacid.
• an organic peroxyacid in such a composition does not require the use of the latter under the specific conditions recommended in the prior art (coating, encapsulation, use of an agent chelating).
• composition according to the invention which contains a significant amount of soap, has an excellent detergency performance and prevents the formation of scale on the heating elements of washing machines.
• soap denotes the salts of saturated or unsaturated fatty acids having essentially from 8 to 22 carbon atoms.
• These soaps can be obtained from natural sources such as, for example, plant or animal esters (for example coconut oil, palm oil, palm kernel oil, tall oil , castor oil, tallow, fish oils, fats and their mixtures), or they can be prepared by synthesis, by oxidation of petroleum derivatives or by hydrogenation of carbon monoxide (Fischer-Tropsch process).
• saturated fatty acids examples include capric, lauric, myristic, palmitic, stearic, arachidic and behenic acids.
• Preferred unsaturated fatty acids are palmitoleic, oleic, linoleic, ricinoleic, linolenic acids and the like.
• fatty acids having 12 to 16 carbon atoms and comprising at least 10% of fractions unsaturated. These fatty acids are partially or totally neutralized by an alkali hydroxide, ammonia or an alkanolamine, such as, for example, monoethanolamine, diethanolamine, triethanolamine and isopropanolamine.
• the dispersing agents for limestone soaps which are suitable for the purposes of the invention are water-soluble surfactants and whose dispersing power of limestone soaps determined according to the Borghetti-Bergmann method is less than or equal to 12.
• the LSDR index corresponds to the quantity of dispersing agent (in grams) necessary to remove the flocculate from 100 g of sodium oleate in hard water and obtain a homogeneous dispersion at 25 ° C.
• compositions according to the invention it is possible to use any organic peroxyacid commonly used as a bleaching agent, such as aliphatic or aromatic mono-, di- or tri-acids whose total number of carbon atoms is less than or equal at 12.
• peroxyacids examples include, in particular, monoperoxyphthalic, peroxyazelalic, peroxisalicylic, peroxylauric, monoperoxysuccinic, diperoxysuccinic, monoperoxyadipic, peroxysebacic, peroxybenzoic, peroxyacetic, monoperoxymalonic, peroxy- carboxylic acid , hemimellitic diperoxy, and their salts.
• monoperoxyphthalic acid and its water-soluble salts such as the magnesium salt.
• compositions according to the invention are obtained by mixing the soap and the dispersing agent for calcareous soaps, atomizing the resulting slurry and post-adding the bleaching agent.
• This acidifying adjuvant can be incorporated into the composition according to the invention at any time during its manufacture, either by addition to the slurry of soap and dispersing agent, or after atomization, that is to say by post-addition.
• suitable adjuvants include hydrochloric, phosphoric, sulfuric, boric, nitrilotriacetic, citric, succinic, adipic, glutaric, acetic, aspartic, glutamic, aminoacetic, azelaic, pimelic, malonic, fumaric, propionic, phthalic acids.
• solid acidifying agents such as nitrilotriacetic, citric, succinic, adipic acids and their salts or partially neutralized acids, such as monosodium citrate, disodium salt of nitrilotriacetic acid, the disodium salt of ethylene diaminetetraacetic acid, the disodium salt of trimethylene phosphonic acid or the disodium salt of ethylenediaminetetra methylene phosphonic acid.
• composition according to the invention has both excellent bleaching and detergency performance in the pH zone indicated above in a very wide temperature range, in particular at low washing temperatures 30-40 ° C.
• composition according to the invention avoids scaling of all parts of washing machines in contact with the washing solution, and in particular of the heating elements.
• the bleaching agent has an optimal efficiency and the scaling of the heating elements is minimal.
• the surfactants which can be used in the compositions according to the invention are chosen from the surfactants commonly used in the detergency field, such as those described in detail by AH SCHWARTZ, JW PERRY and J. BERCH “ Surface active agents and detergents ", Vol. 2, published in 1958 by Interscience Publishers ".
• the additional surfactant is preferably added to the composition according to the invention at the same time as the soap.
• the enzymes which can be used in the compositions according to the invention are in particular the enzymes from the group of proteases, amylases, lipases, glucose oxidases, peroxidases, anthocyanins as well as their mixtures.
• compositions according to the invention can incorporate into the compositions according to the invention conventional optical brighteners, sequestering agents for divalent metal ions, silicates and aluminosilicates, antireeposition agents, bulking inhibitors, hydrotropic agents, bleach activators , foam control agents and organic or mineral fillers.
• optical brighteners sequestering agents for divalent metal ions, silicates and aluminosilicates, antireeposition agents, bulking inhibitors, hydrotropic agents, bleach activators , foam control agents and organic or mineral fillers.
• compositions are by weight, unless otherwise stated. Each composition was tested in a washing solution at 10 g / l in water having a hardness of 25 ° HF, unless otherwise stipulated.
• composition A was prepared (composition A) by mixing the ingredients below, with the exception of the bleaching agent, by atomizing the resulting mixture and then adding the bleaching agent, namely the magnesium monoperoxyphthalate.
• composition B was prepared containing the same ingredients as composition A, with the exception of the bleaching agent which was replaced by 18% sodium perborate.
• compositions A and B were used for machine washing in an ARTHUR MARTIN commercial washing machine (model 300). The number of wash cycles before the appearance of scale on the heating elements was determined.
• composition A No scale deposits were noted on the heating elements after 270 washing cycles with composition A according to the invention.
• composition B a deposit of tartar was noted after 50 washing cycles.
• compositions C and D were prepared below and the influence of the pH of the washing solution on the scale deposit on the heating elements of the machine was determined.
• the pH of the washing solution at 10 g / l in water with a hardness of 25 ° HF was respectively:
• composition was prepared according to the invention and its performance was determined on washing so-called oxidizable stains.
• composition E the composition according to the invention
• composition F the composition according to the invention
• composition F the composition according to the invention
• a standardized scale of appreciation by a jury of 3 judges in an interval of -4 to +4 is used to note the washing performance of the composition according to the invention compared to the reference composition.
• the test is repeated 3 times and the average of the evaluations is retained (a difference is considered to be significant at 95X risk level when this difference is ⁇ 0.80).
• the pH of the washing solutions at 10 g / l in water with a hardness of 20 ° HF was 9.4 with each of the above compositions.
• composition E The average washing performance of composition E according to the invention was +1.12 compared to composition F taken as the reference composition.
• compositions G and H according to the invention were prepared by operating according to the procedure of Example 1 and they were compared in the performance test defined in Example 3 with the corresponding reference compositions containing 18% of perborate. sodium in place of magnesium monoperoxyphthalate.
• Composition I was prepared according to the invention and its performance with regard to oxidizable stains was determined, according to the test defined in Example 3 with respect to the reference composition below, at different washing temperatures (40 ° C, 60 ° C and 90 ° C).
• composition I is as follows:

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• Chemical & Material Sciences (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)
• Inorganic Chemistry (AREA)
• Detergent Compositions (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=9315443

Family Applications (1)

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Cited By (3)

Citations (5)

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• 1985
  • 1985-01-21 FR FR8500802A patent/FR2583764B1/fr not_active Expired
  • 1985-11-29 EP EP85402345A patent/EP0189687A1/de not_active Withdrawn
• 1986
  • 1986-01-20 ES ES551050A patent/ES8705914A1/es not_active Expired
  • 1986-01-20 JP JP815986A patent/JPS61168699A/ja active Pending

Patent Citations (5)

Non-Patent Citations (2)

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