DE19648439A1 - Skin-friendly washing=up liquid with good cleaning performance - Google Patents

Abstract

Mixtures used for the preparation of washing-up liquids comprise glycolipids and surfactants.

Description

Field of the Invention

The invention relates to the use of mixtures of glycolipids and surfactants for Manufacture of manual dishwashing detergents.

State of the art

Manual dishwashing detergents are subject to a whole range of requirements stakes. In particular, in addition to a high washing performance and a pronounced dirt dispersing ability have a high foaming power. This anyway Already complex profile is demanded for an optimal dermatological Compatibility added. There is therefore a constant one for the manufacturers of such products Need to improve their products in the sense of this task. Especially There is a particular interest in ingredients that usually have the property profile further improve the surfactants used.

Mixtures of Glyco are known from European Patent EP-B1 0 499 434 (Unilever) Lipids and surfactants known for the production of detergents. The glycolipids need however, in the micellar phase, the surfactants in the lamellar phase. Subject of US Pat. No. 5,393,453 (Colgate) are toilet cleaners containing glycolipids with a HLB value in the range of 0.1 to 8, a polymeric thickener and anionic Surfactants. According to the teaching of the European patent application EP-A1 0 550 278 (Unilever)  mixtures of glycolipids of the aldobionamide type become harder for cleaning Surfaces or used as a detergent.

The complex object of the invention was therefore to provide raw materials for the Manufacture of hand dishwashing detergents to provide the washing performance, Dirt dispersibility and foaming power with special dermatological compatibility connect.

Description of the invention

The invention relates to the use of mixtures of glycolipids and Surfactants for the production of agents for cleaning hard surfaces.

Surprisingly, it was found that mixtures of glycolipids in particular

• with anionic surfactants of the fatty alcohol sulfate and fatty alcohol ether sulfate type,
• - With nonionic surfactants of the type of alkyl and / or alkenyl oligoglycosides and Fatty acid N-alkyl polyhydroxyalkylamides, as well
• - With amphoteric surfactants of the alkyl betaines and fatty acid amido betaines type

a synergistic reinforcement in terms of washing performance, dispersibility and of foaming power. The mixtures also have a particularly high level of skin comfort metical tolerance.

Glycolipids

Typical examples of suitable glycolipids are rhamnoselipids, glucose lipids, sopho roselipids, trehalose lipids and / or cellobioselipids. These are known, in naturally occurring substances with surfactant properties.  

Rhamnoselipids preferably follow the general formula (I),

in which R ^{1 represents} hydrogen or a cation, R ^{2 represents} hydrogen or the group

CH ₃ (CH ₂ ) _m CH = CH-CO-,

a and b independently of one another for 1 or 2 and m and n for numbers from 4 to 10, ins special 5 to 6 stand.

Glucose lipids preferably follow the general formula (II),

in which R ^{1 represents} hydrogen or a cation, p represents numbers from 1 to 4 and q represents numbers from 4 to 10, preferably 5 to 6.

Sophorose lipids preferably follow the general formulas (IIIa) and (IIIb),

in which R ³ and R ⁴ independently of one another for hydrogen or an acetyl group, R ⁵ for a saturated or unsaturated, optionally hydroxy-functionalized hydrocarbon group having 1 to 9 carbon atoms, preferably a methyl group, and R ⁶ for a saturated or unsaturated, optionally hydroxy-functionalized hydrocarbon group with 1 to 19 carbon atoms, with the proviso that the total number of carbon atoms in the groups R ⁵ and R ⁶ does not exceed 20 and is preferably 14 to 18, and R ^{7 is} hydrogen and R ^{8 is} hydroxyl.

Trehalose lipids preferably follow the general formula (IV),

in which R ⁹ , R ¹⁰ and R ¹¹ independently of one another stand for a saturated or unsaturated, optionally hydroxy-substituted hydrocarbon radical having 5 to 13 carbon atoms.

Finally, cellobioselipids preferably follow the formula (V),

in which R ^{1 is} hydrogen or a cation, R ^{12 is} a saturated or unsaturated, optionally hydroxy-functionalized hydrocarbon radical having 9 to 17, preferably 13 to 15 carbon atoms, R ^{13 is} hydrogen or an acetyl group and R ^{14 is} a saturated or unsaturated, optionally hydroxy-functionalized hydrocarbon radical having 4 to 16 carbon atoms.

Surfactants

Typical examples of suitable anionic surfactants are alkylbenzenesulfonates, alkanesul fonates, olefin sulfonates, alkyl ether sulfonates, glycerol ether sulfonates, α-methyl ester sulfonates, Sulfofatty acids, alkyl sulfates, fatty alcohol ether sulfates, glycerol ether sulfates, hydroxymix ether sulfates, monoglyceride (ether) sulfates, fatty acid amide (ether) sulfates, mono- and dialkyl sulfate fosuccinates, mono- and dialkylsulfosuccinamates, sulfotriglycerides, amide soaps, ethers carboxylic acids and their salts, fatty acid isethionates, fatty acid sarcosinates, fatty acid taurides, Acyl lactylates, acyl tartrates, acyl glutamates, acyl aspartates, alkyl oligoglucoside sulfates, protein fatty acid condensates (especially vegetable products based on wheat) and alkyl (ether) -  phosphates. If the anionic surfactants contain polyglycol ether chains, these can be a conventional, but preferably have a narrow homolog distribution.

Typical examples of suitable nonionic surfactants are fatty alcohol polyglycol ethers, Alkylphenol polyglycol ether, fatty acid polyglycol ester, fatty acid amide polyglycol ether, fat amine polyglycol ethers, alkoxylated triglycerides, mixed ethers or mixed formals, alk (en) yl oligoglycosides, fatty acid-N-alkylglucamides, protein hydrolyzates (especially vegetable Wheat based products), polyol fatty acid esters, sugar esters, sorbitan esters, polysorbates and Amine oxides. If the nonionic surfactants contain polyglycol ether chains, they can have a conventional, but preferably a narrow homolog distribution.

Typical examples of suitable amphoteric or zwitterionic surfactants are alkyl betaine, alkyl amido betaines, aminopropionates, aminoglycinates, imidazolinium betaines and Sulfobetaines.

The surfactants mentioned are exclusively known compounds. With regard to the structure and manufacture of these substances, see relevant reviews for example J. Falbe (ed.), "Surfactants in Consumer Products", Springer Verlag, Berlin, 1987, pp. 54-124 or J. Falbe (ed.), "Catalysts, surfactants and mineral oil ditive ", Thieme Verlag, Stuttgart, 1978, pp. 123-217. From application technology The use of alkylbenzenesulfonates, fatty alcohol sulfates, fatty alcohol is clearly preferred ether sulfates, alkyl oligoglucosides, fatty acid N-methyl glucamides, alkyl betaines and / or Fatty acid amido betaines.

The glycolipids and the surfactants are usually used in a weight ratio of 10:90 to 90:10, preferably 25:75 to 75:25 and in particular 40:60 to 60:40.

Industrial applicability

Mixtures of glycolipids and surfactants, especially alkylbenzenesulfonates, fatty alcohols hol (ether) sulfates, alkyl oligoglucosides, fatty acid N-methylglucamides and betaines Synergies in foam behavior and in dishwashing capacity. They are therefore ideal Lich for the production of manual dishwashing detergents, in which they come together in quantities  from 5 to 50 and preferably 10 to 25% by weight, based on the composition, may be present can.

In addition to the mixtures of glycolipids and Ten siden contain other auxiliaries than there are, for example: Liquid builders, such as. B. Ethylenediaminetetraacetic acid, nitrilotriacetic acid or citric acid, alkalis, solution ver medium, such as B. ethanol, (poly) ethylene glycol, propylene glycol, hexylene glycol, toluenesul fonate, cumene sulfonate, glycerol sulfate, electrolyte salts such as. As sodium chloride or magne sium chloride as well as colors and fragrances. The proportion of these substances can be 1 to 15, preferably but make up 2 to 10 wt .-% - based on the means. The aqueous portion of the funds can conversely be 50 to 95 and in particular 75 to 90% by weight.  

Examples I. Surfactants used

A1) Rhamnoselipid of formula (I) with R ¹

= Na, R ²

= H, a = b = 1, n = 10,
A2) Glucose lipid of formula (II) with R ¹

= Mg / 2, p = 3,
A3) Sophorose lipid of the formula (IIIa) with R ³

= R ⁴

= H, R ⁵

= R ⁶

= Octyl, R ⁷

= H, R ⁸

= OH,
B1) coconut alcohol + 2 EO sulfate sodium salt,
B2) lauryl sulfate sodium salt,
B3) coconut alkyl oligoglucoside,
B4) Coconut fatty acid amidopropyl betaine.

II. Dishwashing capacity and base foam

The dishwashing capacity was determined according to the modified dish test [cf. Fette, Seifen, Anstrichmitt., 74, 163 (1972)]. The base foam was made according to the Ross Miles test [DIN 53 902, Part II] determined. The rinse aid concentration was with the soiling tongue AI (base: beef tallow) 0.5 g / l, for soiling AII (base: baby food) 0.4 g / l. The concentration in the foam test was 0.5 g / l. The results are summarized in Table 1 quantified. Examples of suitable hand dishwashing detergent formulations are given in Table 1 take out (water ad 100% by weight)

Dishwashing power and base foam

Dishwashing power and base foam

Formulation examples

Formulation examples

Claims (5)

1. Use of mixtures of glycolipids and surfactants for the preparation of manu dishwashing detergents. 2. Use according to claim 1, characterized in that one uses glycolipids, which are selected from the group formed by rhamnose lipids, glucose lipids, sophorose lipids, trehalose lipids and / or cellobioselipids. 3. Use according to claims 1 and 2, characterized in that anioni uses non-ionic and / or amphoteric or zwitterionic surfactants. 4. Use according to claims 1 to 3, characterized in that the Gly colipide and the surfactants in a weight ratio of 10:90 to 90:10. 5. Use according to claims 1 to 4, characterized in that the Glycolipids and the surfactants together in amounts of 5 to 50 wt .-% - based on the means - uses.