JPS591597A - Liquid detergent composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning composition that has excellent cleaning properties and good rinsability, particularly a liquid cleaning composition that is suitable for cleaning vegetables, tableware, etc. and can be easily removed by washing with water. It is something.

For kitchen liquid detergents for vegetables and dishes, it is important that in addition to cleaning power and foaming power, they are not only toxic but also skin-friendly.
For example, a cleaning agent consisting of various anionic surfactants and tertiary amine oxide (Japanese Patent Publication No. 38-3264), or a cleaning agent combining these anionic surfactants and higher alkanolamide (Japanese Patent Publication No. 38-2580)
6) is well known. These liquid cleaning agents have a large foaming power and exhibit excellent cleaning properties, but on the other hand,
In particular, the rinsing properties required for kitchen detergents are poor, for example, when rinsing vegetables, tableware, and other kitchen utensils, it takes a large amount of water and time to remove the detergent, resulting in disadvantages such as the phenomenon of foam remaining in trench sinks. However, it is not practically satisfactory.

The present inventors have conducted extensive research in order to overcome these deficiencies of liquid kitchen cleaners and develop a liquid cleaner composition that has cleaning power, foaming power, skin gentleness, and excellent rinsing properties. As a result of repeated studies, it was discovered that the objective could be achieved by incorporating a combination of alkyl ether salt], tertiary amine oxide, and higher fatty acid dialkanolamide12, leading to the present invention. Ta.

That is, the present invention is based on (Al general formula % formula % (11 (wherein, R1 is a linear or branched alkyl group of 09 to 15, n is an integer of 3 to 7, and M is an alkali metal , an alkaline earth metal, a substituted or unsubstituted ammonium residue) 10-40% by weight of an alkyl ether sulfate represented by (Bl general formula % formula % () (wherein R2 is a linear chain of 012-14 1.5 to 10 ffit
%, (C) higher fatty acid alkanolamide represented by the general formula (wherein R5 is a saturated or unsaturated aliphatic hydrocarbon residue of 09 to 13), and (D + average molecular weight 200 The present invention provides a liquid cleaning composition characterized in that it contains 1 to 5 parts by weight of polyoxyethylene glycol of 1 to 5,000 parts by weight.

The alkyl ether sulfate represented by the general formula (11) used in the cleaning composition of the present invention is the main cleaning component, and R1 in the formula is a linear alkyl group having 9 to 15 carbon atoms or a branched alkyl group having 9 to 15 carbon atoms. It is an alkyl group.

An argyl group with a small number of carbon atoms has poor cleaning performance, and an excessively large number of carbon atoms is undesirable because the rinsing performance is significantly reduced. The preferred number of carbon atoms in the alkyl group R1 is 11
~14. In addition, although n in formula (1) is an integer from 3 to 7, it can contain a slightly larger number or a larger number, and these may be unavoidably formed during the manufacturing process. Even if the average number is in the range of 3 to 7, there is no substantial problem. Therefore, n in the formula (+1) in the present invention substantially means the average number of added moles of ethylene oxide. If such an average number of added moles is too small, the detergency will decrease and the stability of the solution will decrease. If it is too much, the foaming power decreases, which is not good.The particularly heavy range is 3 to 5.
Counter ions for alkyl ether sulfates include alkali metals such as potassium and sodium, alkaline earth metals such as magnesium, ammonium residues, and substituted ammonium residues derived from alkanolamines such as monoethanolamine and jetanolamine. can be mentioned.

The above alkyl ether salt 1N is preferably present in a liquid detergent composition using water as a medium in an amount of 10 to 40% by weight, and a preferable range is 15 to 30% by weight.

However, the general formula (Ill) used in the composition of the present invention is
The tertiary amine oxide represented by the formula (
R2 in 11) is a straight chain alkyl group or a branched alkyl group having 12 to 14 carbon atoms. This R2 is substantially effective if the average number of carbon atoms is in the range of J2~]4, even if it appropriately contains those with fewer or more carbon numbers, Those containing an argyl group as a main component are more preferred. If the average carbon number is less than 12, the foaming power will be poor, and if it exceeds 14, problems such as clouding of the composition will occur. R3 and R4 in formula Ill are methyl or ethyl groups, and may be the same or different.

The tertiary amine oxide represented by the general formula (11) can be used as a single component or in combination of 2fIII or more, but the tertiary amine oxide component is 1.5 to 10% by weight in the liquid composition. It is necessary that it be present in an amount within a range of . Although a relatively small amount of this component is effective, if it exceeds 10% by weight, it reduces the rinsability and does not make the car heavy. A preferred amount is 2 to 4 parts by weight.

Size 11 The general formula (Il) used in the composition of the present invention
In the higher fatty acid dialkanolamide represented by 1, R5 is a saturated or unsaturated aliphatic hydrocarbon residue having 9 to 13 carbon atoms; Alternatively, it can be easily obtained from an unsaturated fatty acid and jetanolamine.

These alkanolamides can be used alone or in combination of two or more.

The third component, higher fatty acid dialkanolamide, is added to the composition in an amount ranging from 2 to 10% by weight. If the amount is less than 2% by weight, the foaming power will be weak, and if it exceeds 10% by weight, the rinsing properties will be poor. Preferred amounts range from 3 to 6 parts by weight.

The polyethylene glycol used in the present invention has a molecular weight in the range of 200 to 5000, for example, a molecular weight of 200.300.400.600.1000.150.
These are available as polyethylene glycols such as 0.2000.4000.5000, and these may be used alone or in combination of two or more. Even if the molecular weight exceeds 5,000, or if it is less than 200, the effect of improving rinsability is not observed, so it is not preferable, and a particularly preferable molecular weight is in the range of 600 to 2,000. The content of polyethylene glycol as the fourth component must be 1 to 5% by weight based on the total amount of the composition. If this amount is less than 1 weight part, there is no effect of improving the rinsing properties, and if it is used in excess of 5 weight parts, the rinsing properties will not be improved any further, and the foaming power will be reduced, which is not preferable.

The cleaning composition of the present invention can contain, in addition to the above-mentioned four essential components, all of the known ingredients that are usually added to cleaning compositions. For example, other anionic surfactant amphoteric '/'I' [fn active V
J, agents, nonionic surfactants, viscosity modifiers such as ethyl alcohol, glycerin, phlopylene glycol, inorganic salts, hydrotropic agents such as lower argylbenzenesulfonates, urea, lower alkyl sulfates, and fragrances. , dye,
Ultraviolet absorbers, antioxidants, preservatives, etc. can be added as necessary.

The liquid detergent composition of the present invention is a solution-like composition in which the above-mentioned four components are combined in specific range amounts and dissolved in an aqueous medium, and by such specific combination,
It is highly practical as it has significantly improved rinsing properties that could not be achieved with conventional liquid detergent compositions, and also has excellent functions as a detergent such as detergent power, foaming power, and skin gentleness.

The present invention will be explained below with reference to Examples, but the scope of the present invention is not limited to these Examples.

In addition, the evaluation of detergency and rinsing performance in Examples was carried out by measuring the foaming property by the dish washing method and the defoaming property by the air blowing method, respectively, as described below.

(1) Prepare an aqueous solution containing 0.15% by weight of the foaming composition, and
was placed in a vat with a diameter of 30z+ and a depth of 12CIn, and at a liquid temperature of 25°C, the operation of compressing an air-containing sponge in the liquid was repeated 10 times to create foam.
The surface of the plate coated with No. 52 butter was rubbed 10 times and the back side 5 times with a sponge, and the number of plates that could be washed at a time when the pile height was 3 μs was defined as the foaming property.

(2) 600+m of an aqueous solution containing 0.00303% by weight of antifoaming composition! of,
A glass bottomed glass tube with a diameter of 100 mm and a height of 500 mm is placed in a container with a No. 4 ball filter of 20 mm in diameter attached to the bottom, and air is passed through the ball filter to 407 mm.
After supplying air at a flow rate of /hr for 1 minute, the supply of air was stopped, and the height of the peak 1 minute after stopping was defined as defoaming.

Examples 1 to 11 and Comparative Examples 1 to 13 Various compositions shown in Table 1 were prepared, and the foaming properties (number of plates) and antifoaming properties (residual mountain body) of each were measured. They are summarized in a table.

11- Each component in the table is as follows.

AES -Na R1n (1) C, 2-13 linear argyl group
Average 4 (2) C15 alkyl group Average 4 (3
) 012-13 linear argyl group average l
0(4) aB alkyl group average 4
(5) 016 alkyl group average 4
Amine Ogindo R2R3R4 (1)
Natural C12 argyl group CH3CH6 (2)
Natural C12/614 (1A) alkyl group
OH3(!H3(3) C13 alkyl group (linear chain rate 50%) OH30H,5(4) Natural C1o alkyl group OH!, OJ'a Grudge and Chu 1
1 Jl (1) 09-16 aliphatic hydrocarbon (2)
CHI Aliphatic Hydrocarbon Patent Applicant Lion Corporation Agent Akira Agata 13-701-

Claims (1)

[Claims] 1(A) General formula % Formula % (1) (wherein, R1 is a linear or branched alkyl group of 09 to 15, n is an integer of 3 to 7, and M is an alkali metal , alkaline earth metal, substituted or unsubstituted ammonium residue) 10-40% by weight of alkyl ether sulfate, (Bl general formula % formula % () (wherein R2 is a linear chain of 012-14) 1.5 to 10% by weight of a tertiary amine oxide represented by (C1 general formula (wherein R5 is 09 to 13 2 to 10 weight percent of higher fatty acid dialkanolamide (which is a saturated or unsaturated aliphatic hydrocarbon residue of A liquid cleaning composition characterized by: