CZ197494A3 - Water-soluble active detergents for surface cleaning containing calcium ions - Google Patents

Abstract

An aqueous hard surface detergent composition which provides improved solution feel comprising 3-35 % by weight of a surfactant system selected from the group consisting of anionic, nonionic, amphoteric surfactants, and mixtures thereof and 0.01-0.5 % by weight calcium ion.

Description

Water-soluble, calcium ion-containing surface-cleaning detergents.

Technical field

The present invention relates to a water-soluble surfactant which guarantees a better efficacy of containing a calcium ion detergent composition that is formed without the composition being stored. The product can be used for washing dishes, especially in soft water.

The feeling of acting to deteriorate stability is primarily used

The prior art engineers feel the efficient washing sensation when washing dishes. How it feels when exposed to solution

Anionic surfactants such as short chain ethylene oxide sulfates, alkyl sulfates, alkylbenzenesulfonates, olefinsulfonates and alkyl ethoxycarboxylates are well known as surfactants, but are also known to be more or less used in their use slippery. This undesirable property is accompanied by surface cleaning means, in particular for containers.

Therefore, there has been a need for an effective surface-cleaning detergent composition having good detergency. properties and storage stability, and also guarantees better cleaning and washing, especially described herein, good can best be defined as the absence of a slippery feeling or a "slimy or dull" kind of feeling that someone would feel when using the composition. Good Feeling of Solution ”is an important feature of commercial liquid detergent products. These cleaning solutions, which ensure good hand feel and cleaned items, allow easy handling of items and guarantee good

-2wash. These benefits are most appreciated when washing containers.

Many attempts have been made to improve the feelings of the solution using different technologies. These attempts are generally directed to the use of nonionic surfactants and other ingredients that improve either solution or foaming. In general, these compositions have reduced detergency to improve solution feelings.

Rokoku 46-43550 (Kao Corporation) discloses a liquid detergent composition which has a gentler effect on the skin and has good detergency and contains alkaline earth metal salts of certain alkylalkylene oxysulfates and certain alkylalkylene oxycarboxylates.

Kokai 51-125405 (The Procter & Gamble Company) discloses a composition comprising a calcium and magnesium salt of anionic surfactants including alkyl ether sulfates and amine oxides, C 1 -C 8 alkanols and water wherein the weight ratio of amine oxides to anionic surfactants ranges from 1 ^: 100 to 1: 2. Up to 25% of the anionic surfactants may be in the form of a monovalent salt.

US Patent 2,766,212 (General Aniline and Film Corporation) discloses compositions comprising alkyl ether ether alkoxysulfate salts and water-soluble polyvalent magnesium, calcium, iron or aluminum salts in an amount of 5 to 50% by weight of surfactants. The examples describe compositions comprising at least 70% of anionic surfactants in which magnesium and calcium aid in detergency.

US Patent 4,681,704 (The Procter & Gamble Company) discloses a detergent composition that effectively removes grease and contains 10 to 50% alkaline earth metal salts, preferably magnesium, anionic surfactants, 0.5 to 10% amine oxides, and 0.5 to 15% betaine.

However, the aforementioned patents utilize alkaline earth metals to improve cleaning performance and do not address the improvement of the calcium ion effect of the solution.

-3 unwanted1 and examples of tension.

or removal

Furthermore, the above-mentioned compositions contain a high proportion of divalent ions which, in the light of the present invention, may be unstable during storage, in particular they may form calcium precipitates. The preferred compositions of the aforementioned patents have a high content and therefore the amount of calcium needed to reduce the feeling of slippery would make the composition easy to precipitate calcium.

In the present invention, it has been found that by using calcium ions in a certain low amount, a composition with improved solution feel is obtained without impairing the storage properties.

SUMMARY OF THE INVENTION

The present invention provides a clear water-soluble, effective surface-cleaning detergent composition which has improved the feel of the resulting solution without compromising the storage stability of the composition.

The present invention also provides a clear water-soluble, effective surface-cleaning detergent composition that balances good detergency, solution feel and storage stability.

Further, the present invention provides a method of improving the feel of a water-soluble active surface-cleaning detergent composition or a washing solution of a water-soluble active surface-cleaning detergent composition by adding calcium ions to said composition.

The present invention relates to a water-soluble, effective surface-cleaning detergent composition with an improved feeling of action comprising:

(Cl) 3 to 35% by weight of a surfactant system selected from the group consisting of anionic, nonionic and amphoteric surfactants and mixtures thereof comprising:

-4b.

comprising an agent of the system and an average selected from the group of alpha-olefin sulfonates.

at least 3% by weight and at least 20% by weight of a C 10 -C 10 alkyl ethoxy sulfate surfactant of from 1 to 10 moles of ethylene oxide per molecule;

other anionic surfactants of alkylbenzene sulfonates, and 1-alkyl ethoxycarboxylates and mixtures thereof;

c. 0 to 9% by weight of the C 5 -C 20 alkyl chain diethanolamide;

d. 0 to 10% by weight of the composition of a C 5 -C 18 alkyl chain amine oxide; and <2) 0.01 to 0.5% by weight of calcium ions;

in which

20% by weight of the surfactant system comprises at least 2e of components a, b, c and d.

The present invention also relates to a method of improving the feel of a water-soluble, effective detergent for surface cleaning of a non-washing solution of a water-soluble, effective detergent for surface cleaning by adding calcium ions to said composition.

The composition has a reduced feeling of undesirable slippery and facilitates handling during washing and washing. The compositions of the present invention have good storage stability, i.e., the composition is stable under normal use. more specifically, it does not form a precipitate or gel in the temperature range of -5 ° C to 40 ° C.

Anionic surfactant

The compositions of the present invention comprise 15 to 35%, preferably 20 to 30% by weight of a surfactant system selected from the group consisting of anionic, nonionic and amphoteric surfactants, and mixtures thereof. At least 20%, preferably at least 40%, even more preferably at least 60% by weight. the surfactant system is formed by anionic surfactants,

-5-diethanolamide and amine oxide. Anionic Lenzides at least of

3%, preferably at least at least 12% is C 10 -C 18 alkyl;

8%, and more preferably an alkyl ethoxy sulfate, and on average 1 to 10 moles, c-olefinsulfonates, preferably containing 2 to 5 moles, of ethylene oxide per molecule.

The anionic surfactants are selected from alkyl ethoxy sulfates, alkyl sulfates, alkyl benzene sulfonates, alkyl ethoxycarboxylates, and mixtures thereof.

Alkyl ethoxysulfate, especially that of the C 10 -C 16 alkyl group and an average of 1 to 10 moles, preferably 2 to 5 moles, even more preferably 2.5 to 3.5 moles, of ethylene oxide per molecule, guarantees good detergency and reduces the discomfort. In addition, formulations containing a significant amount of such alkyl ethoxysulfates are useful for improving the sensation of calcium ionic solution. The average amount of moles of ethylene oxide per molecule of alkylethoxysulfate may vary the nature of the surfactant. Here, depending on the alkyl sulfate, we consider the alkyl ethoxy sulfate, which molecule. It is generally known to contain 0 mole of ethylene oxide to the extent that a longer ethylene oxide chain contributes less to a poor feeling under the action of the solution, but has weaker detergency properties. Therefore, those having less than the average amount of ethylene oxide chain than one mole per molecule themselves contribute to the poor feeling of the solution.

The anionic surfactant component may be alkali metal, alkaline earth metal, amine or ammonium salts, preferably sodium or ammonium salts. Alkaline earth metal salts are known for good detergency and foaming properties. Some or all of the calcium ions in the present composition can be considered to be calcium salts of anionic surfactants.

-6Other surfactants

The compositions of the present invention include, for balancing the surfactant system, surfactants and amphoteric in the formulations of the other anionic surfactants, nonionic surfactants. These surfactants are included in the invention to improve detergency and to improve and stabilize the foam. The type and amount of other anionic, nonionic, and amphoteric surfactants is selected accordingly. to optimally balance detergent properties, solution feel and storage stability.

The compositions of the present invention may contain nonionic surfactants such as diethanolamides and amine oxides. 0 to 4 to 7% by weight of diethanolamide and 0 to 5% by weight of amine oxide are included

9%. preferably 10%, preferably 2 to in the formulation. These two surfactants are known for their ability to guarantee good detergency upon storage, but have a solution action. The use of a solution-sensing calcium property and a good stability effect on the number of ions for improvement is particularly useful in compositions.

containing diethanolamide and / or amine oxide.

Diethanolamide used in Formula I

In the present invention, the general (C 2 H 5 OH) 2 -NCR ¹ (I) is selected from the group of alkyl wherein R ¹ C 12 -C 14.

The amine oxide used in Formula II of the present invention

C 3 -C 20, preferably of the invention of the general formula wherein R ³ C 2 -C 14 is

R ³ N (OC 2 H 5> 2 (ID selected from alkyl)

CS-C20, preferably

-7Calc

It has been found that the addition of a small amount of calcium ions can balance the benefits between solution feel and storage stability. The effect of adding small amounts of calcium ions to dishwashing compositions is particularly evident in soft water when the amount of calcium from the water is low.

The calcium ions are added to the formulation in an amount of from 0.01 to 0.5%, preferably from 0.1 to 0.3%. At low calcium levels, no effect on solution sensation is observed. At high calcium levels, storage stability is not good. It is known that calcium ions precipitate relatively easily at higher temperatures, and therefore their storage stability deteriorates when added thereto. Calcium ions furthermore, as is known, contribute to detergent properties, especially grease removal. By appropriately selecting the amount of calcium in the above range, the composition will acquire all three important positive properties; good solution feel, good grease removal and good storage stability.

The compositions of the present invention must contain less than 35% of surfactants to prevent the precipitation of calcium that is present in an amount necessary to improve the feelings of the solution. If the amount of surfactants is too high, the maximum amount of calcium that can be added to the composition without forming a precipitate is not sufficient to improve the feel of the solution.

The calcium ions may be added to the composition in any conventional manner to the extent that the calcium-containing salts are water-soluble and do not precipitate under normal conditions of use. A suitable way of adding calcium ions is to add them as salts selected from the group consisting of chloride, hydroxide, oxide, acetate, nitrate, formate and mixtures thereof. The most preferred salt is chloride.

Alternatively, calcium ions can also be added as a cation ion

The anionic surfactant obtained by neutralizing the acid form of the anionic surfactant with calcium oxide or calcium hydroxide without reducing its advantages.

A preferred composition of the present invention comprises ^: (1) 20 to 30% by weight of a surfactant system selected from the group consisting of anionic, nonionic, amphoteric surfactants, and mixtures thereof comprising:

at least 35% by weight of a C 10 -C 18 alkyl ethoxy sulfate surfactant system and an average of

2.5 to 3.5 moles of ethylene oxide per molecule;

b. 4-7% by weight of the CS-C20 aldehyde diethanolamide composition;

c. 2 to 5% by weight of the C 5 -C 16 alkyl chain amine oxide composition; and (2) 0.1 to 0.3% by weight calcium ions; and (3) 0.1 to 1% by weight of magnesium ions.

Optional ingredients

The compositions of the present invention optionally comprise the ingredients described below.

The optional surfactants used in the composition of the present invention are monoethanolamides, polyhydroxy fatty acid amides, alkyl polyglucosides, and alkyl ethoxylates.

Monoethanolamide is an optional surfactant of formula (III) (C ² H ⁵ OH) -NCR ³ (III)

Where R ³ is selected from 2e of the C 5 -C 8 alkyl group, preferably C 12 -C 14.

Polyhydroxyamides d of formula (IV) fatty acid is optional surfactant 0 R ⁴ It 1 11 R ⁵ -CNZ C IV) wherein R ⁴ is H, C 1 -C 4 alkyl, 2-hydroxyethyl, , 2-hydroxypropyl or mixtures thereof, p preferably C1-C4 alkyl, even more preferably

methyl: and R ⁵ is C 5 -C 31 alkyl, preferably straight chain C 10 -C 18 alkyl; and Z is a linear alkyl chain polyhydroxyalkyl to which at least two hydroxyls are directly attached, or alkoxylated (preferably ethoxylated or propoxylated) thereof. derivative. Z is preferably derived by a reductive reaction from a reducing sugar: even more preferably Z is glycityl. Suitable reducing sugars are glucose, fructose, maltose, lactose, galactose, mannose and xylose.

Alkylpolyglucoside is an optional surfactant of formula (V)

R ⁶ 0 (C «H2m0) p (glucose 1) <(V) wherein R ⁶ is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalky1fenylu and mixtures thereof in which the alkyl groups Cio-Cis, preferably Ci2Ci4 m is 2 or 3, preferably 2: p is from 0 to 10, preferably 0 and g is 1.3 to 10, preferably 1.3 to 3, even more preferably 1.3 to 2.7. In the preparation of these compounds, the alcohol or alkylpolyethoxy alcohol is reacted with glucose or a source of glucose to form a glucoside (bound at position 1-). Additional glycosyl units can be attached by position 1- to positions 2-, 3-, 4- and / or 6-, preferably

-10condensation consists of 8 mostly on position 2-, already bound units.

Alkyl ethoxylate is an optional surfactant. These and the alkyl ethoxylates are aliphatic alcohols with 1 to 25 moles of ethylene oxide. The alkyl chain of the aliphatic alcohol may be either linear or branched, primary or secondary, and generally consists of 8 to 22 carbon atoms. Particularly preferred are the condensation products of alcohols whose alkyl group consists of 8 to 20 carbon atoms with 2 to 10 moles of ethylene oxide per alcohol of alcohol. Most preferred are alcohol products having an alkyl group of up to 14 carbon atoms with 6 to 10 moles of ethylene oxide per mole of alcohol.

The amphoteric optional surfactants of the present invention are V2orce (VT) betaines.

R ^s (R ¹⁰ ) ₂

I I

R ⁷ CO-NR ⁹ -N ⁺ R ¹¹ COO ^- (VI) wherein R ⁷ is a C ⁷ -C 21 alkyl group or an alkylaryl group, preferably a C 8 -C 18 alkyl group; ^R is hydrogen or Ci-Ce alkyl, preferably Ci-C3 alkyl; R ⁹ is C 1 -C 10 alkylene, preferably C 2 -C 6, even more preferably C 3; both R ¹⁰ are C 1 -C 6 alkyl or hydroxyalkyl groups, preferably C 1 -C 3, even more preferably methylated or ethoxylated hydroxyalkyl containing from 1 to 10 ethylene oxide units and R ¹¹ is C 1 -C 6 alkylene group, preferably methyl.

an amount of 0.1 to 1% is preferably in accordance with the present invention to give a negative effect on the feel of good storage stability

The magnesium ions add solution-free detergent to the composition and improve the performance of the composition.

The composition of the present invention also optionally comprises 4 to 8% by weight of a hydrotrope selected from the group consisting of sodium and ammonium salts

-11-cumene sulfonates, sulfosuccinates and in order to achieve the product.

toluenesulfonates, xylenesulfonates, mixtures thereof. These components use the desired phase stability and viscosity

Other desirable components are solvents, stabilizers, dyes and fragrances.

The solvents used in the present invention are water and low molecular weight alcohols such as ethanol. Ethanol is also known to reduce the viscosity of the product when necessary for dosing. Solvents other than water are usually present in an amount of 2 to 10% by weight.

Stabilizing agents, colorants and fragrances are added to the composition of the present invention to increase its attractiveness to consumers. These components are usually present in an amount not exceeding 1%.

Components that are preferably not added to the composition are those that increase the coagulation by binding to calcium ions. Examples of such materials are sulfates, carboxylates and anions of fatty acids.

DETAILED DESCRIPTION OF THE INVENTION

Follow the predicted precession.

The invention is illustrated by the following examples, but the figures are illustrative of the compositions. All weights, if not specified

Preparation

The liquid detergent compositions described in the present invention can be prepared by anyone skilled in the art in a conventional manner. The surfactants, hydrotopes, calcium salts and optionally magnesium salts are added in an appropriate amount of water and mixed. According to the present invention, the order of addition of the individual components is not important. If it is

The necessary pH of the mixture is adjusted by adding HCl to a value safe for home storage of these products and the viscosity adjusted by alcohol. Optionally, fragrances, colorants and stabilizers are added and the composition is made up with water. The standard product and Examples 1-9 were all prepared according to this method.

Attempts

1. Feeling under solution

Of the standard product and each preparation, 500 g of a 6% solution were prepared in 1 liter beakers and the porcelain crucible was soaked in the solutions.

At the same time, one hand is soaked in the sample solution and the other in the standard product solution and the grip feel of the porcelain crucible is evaluated according to the scale shown below.

The evaluation was carried out by three members of the special commission and so the average result was obtained.

Rating scale

0 = nec í t í m no difference1 +.1 ⁼ mysl 1m. that I feel roždí 1 + 2 = I am i i st that I feel roždí 1 + 3 = I am sure I feel big roždí 1 + 4 = I am i i st that I feel very big roast 1 (+) : 1epš í feeling when acting sample solution

slippery) (-) better feeling with standard product solution (more slippery)

Those samples that have a better rating than a formulation with the same surfactant system but without calcium are labeled to have a "better feel of the solution."

-132. Storage stability

The samples were placed in a 100 ml glass jar and stored in rooms at a constant temperature of -5 ° C and 40 ° C. The condition of the product after two weeks was rated as follows.

clear and with no shifts compared to the initial sample - 0 precipitated or cloudy - X

According to Table 1, it is clear that Examples 1, 3, 4 and 7, which are compositions of the present invention, have both improved solution feel and good storage stability.

Table 1

Standard product 1 2 3 4 5 6 7 8 C12'Cn alkylethoxy sodium (avg. 5) sulfate 11.7 11.7 - - - - - - - ammonium salt of C 12 -C 14 alkylethoxy (avg. 3) sulfate - - 12.0 12.0 12.0 12.0 12.0 12.0 12.0 C12-C14 alkyl dimethyl amine oxide 3. 1 3. 1 3.0 3.0 3.0 3.0 3.0 3.0 3.0 C 1-6 alkyl diethanol amide 4. 4 4.4 4.5 4.5 4.5 4.5 4.5 4.5 4.5 C12-C14 alkyl N-methyl glucoamide i - - 5.0 5.0 5.0 5.0 - - - C12 alkyl ethoxy (avg. 3) alcohol 2.3 2.3 - - - - - - -

-14Table 1 (continued)

Standard product

C 1 -C 12 alkyl ethoxy (avg.

8) alcohol

1.5 1.5 1.5

1.5 1.5

1.5 1.5 toluene sulphonate sodium 2.3 2.3 sodium cumene sulphonate

5.0 5.0 5.0

5.0 5.0

5.0 5.0 <7 <7 ^{+ +} (McfCla · 7Ηζ0)

0.7 0.5

0.36 0

0.7

0.5 0.1

Ca ⁺⁺ (CaCl2) - 0.3 - 0.2 0.14 0.6 - 0.2 0.6 ethanol 2 .5 2.5 4.2 4.2 4.2 2.8 2.8 2.8 water and other minor components Coll. ^x zb. Coll. Coll. Coll. Coll. Coll. Coll. Coll. sensation in solution (points) st. ^xx +2.0 • 1.38 0.88 +0.75 +0.75 1.38 0.5 +0.13 (comparative sample) - st. - Ex 2 př.2 př.2 - Ex 6 Ex 6 (improvement) - +2.0 +0.5 +2.13 +2.13 +0.88 + 1.25 (rating) - 0 - 0 0 0 - 0 0 Stabi- lity during storage (-4 ° C) 0 0 0 0 0 X 0 0 X (41 ° C) O O 0 0 0 X 0 0 X

* zb. = rest up to 100% ^xx st. = standard

Breakthrough Usability

The composition can be used wherever effective surface washing and limiting adverse effects on the skin are required.

Claims (9)

PATENT CLAIMS What is claimed is: 1. A water-soluble, effective detergent composition for surface cleaning which provides a better feel of the resulting solution, comprising: (1) 3-35% by weight of a surfactant system selected from the group consisting of anionic, nonionic and amphoteric surfactants and mixtures thereof including ^- · at least 20% by weight of an alkyl C 10 -C 16 alkyl ethoxy sulfate and an average of 1 to 10 moles of ethylene oxide per molecule; b. other anionic surfactants selected from the group consisting of alkylbenzene sulfonates, d-olefin sulfonates, alkyl ethoxycarboxylates and mixtures thereof; c. C8-C50 alkyl chain diethanoamide: d. a C8-C18 alkyl chain araoxide; and (2) 0.01 to 0.5% by weight of calcium ions; wherein the composition comprises at least 3% by weight of alkyl ethoxysulfate, 0 to 9% by weight of diethanolamide and 0 to 10% by weight of the amine oxide. Composition according to claim 1, characterized in that it contains 0.1 to 0.5%, preferably 0.1 to 0.3%, by weight of calcium ions. 3. you of n contains The composition according to at least 35% by weight of claims 1 and 2, wherein the surfactant system is an alkyl ethoxysulfate. 4. A composition according to claim 3 comprising 20 to 30% by weight of a surfactant system. A composition according to any one of claims 1 to 4, The average amount of alkylsulfonate sulphate is 2 to 5 moles, preferably 2.5 to 3.5 moles. ethylene oxide per molecule. ' 6. A composition according to any of claims 1 to 5, and ^{two Nau ί} σ 1 m * ^E contains 4-7% by weight diethanolam1du. 7. A composition according to claim 1, based on the weight of aainoxide. any of claims 1 to 6 containing 2 to 5% 8. A composition according to any one of claims 1 to 7 comprising from 0.1 to 1% by weight of magnesium ions. 9. A method of improving the feel of a water-soluble, effective surface-cleaning detergent composition or a solution thereof in water by detaching the composition from 0.01 to 0.5% by weight of calcium and onts.