JP2005171173A - Liquid detergent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a liquid detergent composition having high detergency and improved sliminess in cleaning and rinsing. <P>SOLUTION: The liquid detergent composition comprises (a) 0.1-10 mass% of a compound represented by general formula (1) R<SP>1a</SP>-A-B (1) [R<SP>1a</SP>is a 7-10C alkyl group containing one or more tertiary carbon atoms or the like; A is a group selected from O, etc.; B is a group selected from a group containing 2-10 hydroxy groups and 3-12 total carbon atoms, etc.], (b) 0.1-5 mass% of a diamine compound such as p-cyclohexanediamine, etc., (c) 5-50 mass% of an anionic surfactant containing a 10-18C hydrocarbon group, (d) 0.1-30 mass% of a surfactant selected from an amine oxide type surfactant containing a 8-18C hydrocarbon group, etc., and water and has pH 6.0-8.0 (20°C). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a liquid cleaning composition, and more particularly to a liquid cleaning composition suitable for cleaning hard surfaces such as kitchen surroundings, tableware and cooking utensils.

Techniques for applying amine compounds to liquid detergents are already known (Patent Documents 1 to 5); techniques for using alkyl glyceryl ethers as liquid detergents are also known (Patent Documents 6 to 8); alkyl glycoside type Surfactants are also widely applied to liquid detergents (Patent Documents 9 to 13); polyoxyalkylene type nonionic surfactants are also commonly used surfactants for liquid detergents (Patent Documents 14 to 18). ); Detergent compositions containing polyhydroxy fatty acid amides are also known (Patent Documents 19 to 22).
JP-A-5-214392 Japanese translation of PCT publication No. 2002-511521 JP-T-2002-517549 Special Table 2002-536696 Special table 2003-509572 gazette JP 2001-19993 A JP 2001-49291 A JP 11-310792 A JP-T 8-502540 Japanese National Patent Publication No. 8-502310 Japanese National Patent Publication No. 8-501817 JP-A-5-148494 JP 2000-26889 A Japanese Patent Application Laid-Open No. 2002-226887 Japanese Patent Application Laid-Open No. 7-188697 JP-A-6-116587 JP-T 8-502540 JP 2003-13092 A JP 11-246890 A Special table 2001-520265 gazette JP-T-2001-522930 Special Table 2002-507239

  Liquid detergent compositions such as dishwashing detergents are required to have foaming properties and foam retention properties during washing. For the purpose of solving these problems, amine oxide type surfactants, amphoteric surfactants and alkanolamide type interfaces are required. It is preferable to use an activator in combination as a foaming agent. Such a foam-increasing agent improves not only the foaming properties but also the detergency when used in combination with an anionic surfactant. This is thought to be due to the formation of an ionic complex with the anion of the anionic surfactant, thereby improving the emulsifying power for the oil and consequently the detergency.

  In recent years, concentrated liquid cleaning agents that have been made compact by increasing the concentration of the surfactant have been favored and used. Despite this tendency to concentrate, the method of using dishwashing detergents has become more common than before, in which the detergent is applied directly to the sponge and washed. It is easy for high concentration surfactant to come into contact with the surface.

  The contact between the high concentration of the surfactant and the hard surface facilitates removal of oil stains adhering to the hard surface, while excessive surfactant causes the problem of stickiness, particularly during rinsing. The luster is felt between a body such as a finger or a palm and the surface to be cleaned, and is a feeling that the cleaning agent is present as a smooth surface to be cleaned as an oil film. Basically, it can be resolved by rinsing sufficiently (making the rinsing time longer than the normal rinsing time), but the feeling of slickness that cannot be wiped off during rinsing is not preferable. This also leads to wasted rinsing water.

  The sliminess becomes more remarkable by using a foaming agent. The cause is that the foam-increasing agent exhibits a property that it is easy to become slippery as compared with other surfactants, but it is presumed that the formation of the complex also has an influence. When the amount of the foam-increasing agent is reduced, the latheriness at the time of washing and rinsing is improved, but the foaming property is impaired. Satisfying both the foaming property and the sliminess cannot be achieved by the above-mentioned prior art, and a liquid detergent that satisfies both the foaming property and the improvement of the smoothness during washing and rinsing is required. ing.

  The emulsifying power for oil can be improved by using an anionic surfactant, an amine oxide type surfactant, an amphoteric surfactant and an alkanolamide type surfactant in combination. In order to remove oil stains such as meat sauce and butter, higher oil emulsifying power is required.

  The problem to be solved by the present invention is to provide a liquid detergent composition that has an excellent emulsifying power for oil, has a high detergency, and satisfies both foaming properties and improvement in wetness during washing and rinsing. There is to do.

As a means for solving the problems, the present invention
(A) 0.1 to 10% by mass of a compound of the following general formula (1),
(B) 0.1 to 5% by mass of a diamine compound of the following general formula (2),
(C) 5 to 50% by mass of an anionic surfactant having a hydrocarbon group having 10 to 18 carbon atoms,
(D) 0.1 to 30% by mass of a surfactant selected from amine oxide surfactants having a hydrocarbon group having 8 to 18 carbon atoms, amphoteric surfactants, and alkanolamide surfactants, and water And a liquid detergent composition having a pH (20 ° C.) of 6.0 to 8.0.

R ^1a -A-B (1)
[Wherein, R ^1a is a C 7-10 alkyl group having one or more tertiary carbons or quaternary carbons, and A is a group selected from —O—, —COO—, and —CONH—. B is a group having 3 to 12 carbon atoms having 2 to 10 hydroxy groups, or-(R ^1b O) _a -H (where R ^1b is an alkylene group having 2 or 3 carbon atoms, and a is It is an average added mole number and represents a number of 1 to 5). ]

[Wherein, R ^2a , R ^2b , R ^2d and R ^2e are each independently a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, and R ^2c is an ether group, An alkylene group or a cycloalkylene group having 2 to 6 carbon atoms which may be divided by an ester group or an amide group and may be substituted by a hydroxy group is shown. ]

  Since the liquid detergent composition of the present invention has an excellent emulsifying power for oil, the cleaning power is high, the foaming and foam persistence are good, and the sliminess at the time of washing dishes and cooking utensils is suppressed. At the same time, the sliminess is easily removed during rinsing.

<(A) component>
The component (a) of the present invention is a compound of the general formula (1), which is a compound having a specific branched alkyl group and a specific hydrophilic group.

R ^1a -A-B (1)
[Wherein, R ^1a is a C 7-10 alkyl group having one or more tertiary carbons or quaternary carbons, and A is a group selected from —O—, —COO—, and —CONH—. B is a group having 3 to 12, preferably 3 to 8, carbon atoms having 2 to 10 hydroxyl groups, or — (R ^1b O) _a —H (where R ^1b is an alkylene having 2 or 3 carbon atoms). A is an average addition mole number, and is a group selected from 1 to 5). ]
R ^1a is an alkyl group having a branched structure, preferably a 2-ethylhexyl group, an iso-nonyl group, an iso-decyl group, a residue excluding the carbonyl carbon of the 2-ethylhexanoyl group, or an iso-nonanoyl group. A residue excluding the carbonyl carbon and a group excluding the carbonyl carbon of the iso-decanoyl group are preferable, and a residue excluding the carbonyl carbon of the 2-ethylhexyl group or 2-ethylhexanoyl group is particularly preferable.

A is a group for linking R ^1a and B, and preferably —O—. Specifically, B represents a reducing sugar residue, a reductive aminated sugar residue, a residue excluding one hydroxy group of glycerin, and a residual excluding one hydroxy group of polyglycerin (average polymerization degree 2 to 4). And a group selected from — (C ₂ H ₄ O) _b —H (b is the average number of moles added and represents a number of 2 to 5).

  Specific examples of the compound of the general formula (1) include compounds of the following general formulas (1-1) to (1-4).

R ^1a- (G) _e (1-3)
R ^1a- (C ₂ H ₄ O) _f -H (1-4)
[R ^1a has the same meaning as described above.
c is a number of 1 to 4, preferably 1.
d is a number of 1 to 4, preferably 1.
G represents a monosaccharide residue, and e represents an average value of 1 to 5, preferably 1 to 3, particularly preferably 1 to 2.
f shows the number of the average values 2-5. ]
The compound of the general formula (1-1) is produced by reacting 2-ethylhexanol, iso-nonanol, iso-decanol and an epoxy compound such as epihalohydrin or glycidol using an acid catalyst such as BF ₃ or an aluminum catalyst. The method to do is common.

  As the compound of the general formula (1-1), 2-ethylhexyl monoglyceryl ether is preferable, and a method of manufacturing by the above-described manufacturing method is common, and a plurality of methods as described in JP-A-2001-49291 are used. A mixture containing the product.

  Specifically, as 2-ethylhexyl monoglyceryl ether, a compound in which 2-ethylhexanol is added to the 1-position of an epoxy compound [Compound 1; 3- (2-ethylhexyloxy) -1,2-propanediol], an epoxy compound The compound [Compound 2; 2- (2-ethylhexyloxy) -1,3-propanediol] added to the 2-position of can be mentioned. Moreover, as a by-product, a polyaddition compound (compound 3) in which an epoxy compound is further added to the compound 1 or 2 can be exemplified.

  The 2-ethylhexyl monoglyceryl ether preferably has a compound 3 content of 30% by mass or less, more preferably 10% by mass or less, and particularly preferably 1% by mass or less.

  The compound of the general formula (1-2) is an esterification reaction (or ester) of glycerin and preferably 2-ethylhexanoic acid, iso-nonanoic acid, iso-decanoic acid (or their lower alkyl ester, acid chloride). Exchange reaction). However, in this case, a mixture of a monoesterified product, a diesterified product, and a triesterized product is obtained. In the present invention, those having a monoester content in these mixtures of 60 mol% or more, preferably 80 mol% or more are used.

  In the compound of the general formula (1-3), G is a monosaccharide residue, and examples thereof include triose, tetrose, pentose, and hexose having 3 to 6 carbon atoms. Specific examples include apiose, arabinose, galactose, glucose, lyxose, mannose, gulose, aldose, idose, talose, and xylose.

  In the present invention, among these, pentose or hexose having 5 or 6 carbon atoms is particularly preferable, and glucose is most preferable. G represents the above-mentioned monosaccharide, but an oligosaccharide obtained by condensing 2 to 5, preferably 2 or 3 of these monosaccharides may be used for production. Further, a mixture of monosaccharide and oligosaccharide may be used. In this case, the average degree of condensation is 1 to 5, preferably 1 to 3, particularly preferably 1 to 2, and most preferably 1 to 1.5. preferable.

  The compound of the general formula (1-3) is an acetalization reaction or a ketalization reaction of 2-ethylhexanol, iso-nonanol, iso-decanol and the reducing end of the monosaccharide or oligosaccharide using an acid catalyst. Can be easily synthesized.

The compound of the general formula (1-4) is obtained by reacting 2-ethylhexanol, iso-nonanol, iso-decanol and ethylene oxide at a molar ratio of alcohol / alkylene oxide of 1/2 to 1/5, and is unreacted. F-containing compound containing 2-ethylhexanol. These may be used after removing unreacted alcohol (compound with f = 0) and compounds with f> 5 or more by performing an operation such as distillation. The compound of the general formula (1-4) preferably contains about 5 to 50% by mass of unreacted alcohol, and the average value of f containing unreacted alcohol is 2 to 5. The average value is used H ¹ -NMR, it is possible to easily obtain the integral value of the proton α-position proton and oxyethylene groups 2-ethylhexyl group.

As the component (a), particularly in the compound of the general formula (1-1), R ^1a is a 2-ethylhexyl group, and in the compound of c = 1, and in the compound of the general formula (1-3), R ^1a is 2- A compound having an ethylhexyl group and G being glucose is preferred, and a compound of formula (1-1) in which R ^1a is a 2-ethylhexyl group and c = 1 is most preferred.

<(B) component>
(B) component of this invention is a diamine compound of General formula (2). The component (b) is a component that acts to maintain the pH of the composition within a predetermined range by improving the emulsifying power of the composition to oil and to maintain the emulsifying power by exerting a buffering action. .

  Normally, liquid detergent compositions such as dishwashing detergents are washed with a sponge and other flexible absorbent containing the composition and water, so the composition is diluted in the sponge when the dish is washed repeatedly. The For this reason, when an alkaline agent such as general sodium carbonate is used, the pH of the composition in the sponge is lowered by dilution, and the emulsifying power to the preferred oil is reduced in the second half of the repeated washing. However, by containing the component (b) as described above, the pH of the composition can be maintained within a predetermined range, so that high emulsifying power to oil can be maintained.

[Wherein, R ^2a , R ^2b , R ^2d and R ^2e are each independently a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, and R ^2c is an ether group, An alkylene group or a cycloalkylene group having 2 to 6 carbon atoms which may be divided by an ester group or an amide group and may be substituted by a hydroxy group is shown. ]
Preferred compounds as component (b) are ethylenediamine, propylenediamine, hexylenediamine, N, N, N ′, N′-tetramethylethylenediamine, N, N, N ′, N′-tetramethylpropylenediamine, N, N N ′, N′-tetramethylhexylenediamine, dimethylaminopropylamine, p-cyclohexanediamine, 1,3-bis (dimethylamino) -2-hydroxypropane, 2-methyl-1,5-pentanediamine, 1, Examples include 3-pentanediamine, 1,3-diaminobutane, 1,2-bis (2-aminoethoxy) ethane, isophoronediamine, and the like. In the present invention, N, N, N ′, N′-tetramethyl is particularly preferred. Preferred are ethylenediamine, N, N, N ′, N′-tetramethylpropylenediamine, and p-cyclohexanediamine. is there.

<(C) component>
(C) component of this invention is an anionic surfactant which has a C10-C18 hydrocarbon group, As a preferable specific example, the alkylbenzenesulfonic acid which has a C10-C15 alkyl group, or its salt, C10-16 monoalkyl sulfate ester salt, polyoxyalkylene alkyl ether sulfate having an alkyl group having 10-16 carbon atoms and an average of 1.0-4.0 mol of oxyalkylene groups having 2 or 3 carbon atoms added Examples thereof include ester salts, α-olefin sulfonates having 8 to 16 carbon atoms, and α-sulfo fatty acids (8 to 16 carbon atoms) lower alkyl (1 to 3 carbon atoms) ester salts. Examples of the salt include sodium salt, potassium salt, magnesium salt, and alkanolamine salt, and sodium salt, potassium salt, and magnesium salt are particularly preferable from the viewpoint of viscosity.

  In the present invention, an alkyl group having 10 to 14 carbon atoms in particular and an oxyalkylene group having 2 or 3 carbon atoms, preferably an oxyethylene group, is on average 1.0 to 3.0 mol, particularly preferably 1.5 to It is preferable to use 3.0 mol added polyoxyalkylene alkyl ether sulfate salt, preferably sodium salt, potassium salt, or magnesium salt from the viewpoint of cleaning effect, and contains a high concentration of anionic surfactant. This is preferable because the storage stability of the composition at low or high temperatures can be improved.

  (C) When a polyoxyalkylene alkyl ether sulfate salt is used as the component, a polyoxyalkylene alkyl ether having a branched primary alkyl group produced from an alcohol obtained by hydroformylating a linear 1-alkene as a raw material Sulfuric acid ester salts are preferred. Here, hydroformylation is a method for obtaining an alcohol by adding carbon monoxide to a linear 1-alkene using a carbonyl complex such as iron, cobalt or nickel as a catalyst. An alcohol containing groups is obtained.

  The polyoxyalkylene alkyl ether sulfate ester salt further adds alkylene oxide, preferably propylene oxide (hereinafter referred to as PO) or ethylene oxide (hereinafter referred to as EO), more preferably EO, to such an alcohol, Further, it can be obtained by sulfonation with sulfur trioxide or chlorosulfonic acid and neutralization with an alkali agent. The average number of added moles is preferably 1.0 to 3.0, more preferably 1.5 to 3.0, and particularly preferably 1.5 to 2.5 from the viewpoint of the cleaning effect. As the alkali agent used for neutralization, sodium hydroxide, potassium hydroxide, magnesium hydroxide, sodium carbonate, potassium carbonate, and magnesium carbonate are preferable, and sodium hydroxide, potassium hydroxide, and magnesium hydroxide are more preferable.

  The polyoxyalkylene alkyl ether sulfate salt thus obtained contains a branched alkyl group, and the mass ratio of the polyoxyalkylene branched alkyl ether sulfate salt to the total polyoxyalkylene alkyl ether sulfate salt is 5-80 mass%, Furthermore, 10-70 mass% is preferable in order to achieve the outstanding cleaning effect.

  In particular, when the polyoxyalkylene alkyl ether sulfate salt is blended in the composition in an amount exceeding 10% by mass (for example, when blended at a concentration of 15 to 40% by mass), in the polyoxyalkylene alkyl ether sulfate salt The content of the polyoxyalkylene branched alkyl ether sulfate ester salt preferably satisfies the above content range. The polyoxyalkylene alkyl ether sulfate salt itself has a characteristic that it is less sticky than other surfactants, but it increases with the increase in concentration as it increases with the use of amine oxide surfactants. Since it tends to remain on the surface to be cleaned due to viscosity or gelation, there is concern about an increase in the feeling of sliminess, but satisfying the content range of the branched chain described above is preferable because the feeling of sliminess is reduced. .

<(D) component>
The component (d) of the present invention is a surfactant selected from amine oxide surfactants having a C 8-18 hydrocarbon group, amphoteric surfactants, and alkanolamide surfactants. Can include compounds of the following general formulas (3) to (5).

[Wherein, R ^3a is an alkyl group or alkenyl group having 8 to 16 carbon atoms, R ^3b is an alkylene group having 1 to 6 carbon atoms, and D is —COO—, —CONH—, —OCO—, — It is a group selected from NHCO-. g is a number of 0 or 1, and R ^3c and R ^3d are each an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group. ]

[Wherein, R ^4a is an alkyl group or alkenyl group having 9 to 17 carbon atoms, and R ^4b is an alkylene group having 1 to 6 carbon atoms. E is a group selected from —COO—, —CONH—, —OCO—, —NHCO—, and —O—, and h is a number of 0 or 1. R ^4c and R ^4d are each an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group, and R ^4e is an alkylene group having 1 to 5 carbon atoms which may be substituted with a hydroxy group. F is _{^{-SO 2 -, -OSO 3 -,}} -COO - a group selected from. ]

[Wherein, R ^5a —CO— represents a saturated or unsaturated acyl group having 8 to 20 carbon atoms, and R ^5b represents a methyl group, an ethyl group, or — (C ₂ H ₄ O) _i —H. R ^5c is — (C ₂ H ₄ O) _j —H. i and j are each a number of 0 to 5, and i + j is 1 to 6. ]
In the general formula (3), R ^3a is preferably an alkyl group or alkenyl group having 10 to 14 carbon atoms, and particularly preferably a lauryl group (or lauric acid residue) and / or a myristyl group (or myristic acid residue). ). D is preferably —COO— or —CONH—, and most preferably —CONH—. R ^3b preferably has 2 or 3 carbon atoms, and R ^3c and R ^3d are preferably methyl groups.

In the present invention, R ^3a may be a single alkyl (or alkenyl) chain length or a mixed alkyl group (or alkenyl group) having different alkyl (or alkenyl) chain lengths. In the latter case, those having a mixed alkyl (or alkenyl) chain length derived from a vegetable oil selected from coconut oil and palm kernel oil are preferred. Specifically, the cleaning effect is such that the molar ratio of lauryl group (or lauric acid residue) / myristyl group (or myristic acid residue) is 95/5 to 20/80, preferably 90/10 to 30/70. And from the viewpoint of foaming property.

In the general formula (4), R ^4a is preferably an alkyl group having 9 to 15 carbon atoms, particularly 9 to 13 carbon atoms, and R ^4b is preferably an alkylene group having 2 or 3 carbon atoms. E is preferably -CONH-. R ^4c and R ^4d are preferably a methyl group or a hydroxyethyl group. F is -SO ₃ ^-, or -COO ^- are preferred, F is -SO ₃ ^- are preferred, F is -COO ^- - ^{R 4e} is _-CH 2 CH (OH) CH ₂ in the case of the case of R ^4e is preferably a methylene group.

In the compound of the general formula (5), R ^5a —CO— is preferably a saturated or unsaturated acyl group having 8 to 17 carbon atoms. Preferred specific examples are derived from octanoic acid, decanoic acid, dodecanoic acid, tetradecanoic acid, hexadecanoic acid, octadecanoic acid, docosanoic acid, linoleic acid, 2-ethylhexanoic acid, 2-octylundecanoic acid, isostearic acid and oleic acid. Particularly preferred are acyl groups derived from octanoic acid, decanoic acid, dodecanoic acid, tetradecanoic acid, hexadecanoic acid, octadecanoic acid and oleic acid.

In the compound of the general formula (5), R ^5b is a methyl group, an ethyl group or — (C ₂ H ₄ O) _i —H, and preferably a methyl group or a hydrogen atom (i = 0). R ^5c is — (C ₂ H ₄ O) _j —H, and j is preferably a number from 1 to 5, particularly preferably from 1 to 3, from the viewpoint of durability of the cleaning effect.

  Preferable specific examples of the compound of the general formula (5) include the general formula (5-1) and the general formula (5-2).

[Wherein, R ^5b and j have the same meaning as described above. ]
<Other ingredients>
In the present invention, for the purpose of improving the emulsifying power of the component (b) and enhancing the cleaning effect, it is preferable to blend magnesium [hereinafter referred to as the component (e)], and magnesium is present in the system as a salt or a free ion. And may be blended as a counter ion of the component (b) or may be blended as a water-soluble magnesium compound. As a water-soluble magnesium compound, the solubility in water at 20 ° C. in the magnesium compound described in Chemical Handbook II (Revised 3rd Edition), page 166, table 8.42, and page 190, table 8.47 is 1 g / 100 g. Above, preferably a compound of 10 g / 100 g or more is suitable. Of these, magnesium sulfate, magnesium chloride, magnesium carbonate, magnesium nitrate, and magnesium acetate are most preferred in the present invention.

  In the present invention, for the purpose of enhancing the detergency, it is preferable to contain a surfactant other than the component (b) and the component (c) [hereinafter referred to as the component (f)], and a nonionic surfactant is used. Is preferred. As a nonionic surfactant preferable as (f) component, the compound of following General formula (6) can be mentioned.

R ^6a —O— (R ^6b O) _k —H (6)
[Wherein, R ^6a is an alkyl group or alkenyl group having 11 to 18 carbon atoms, preferably 11 to 15 carbon atoms, and R ^6b is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group. k represents a number of 6 to 100, preferably 6 to 20. ]
In the present invention, it is preferable to contain a hydrotrope agent (hereinafter referred to as component (g)) for the purpose of improving storage stability. As the hydrotrope, toluenesulfonic acid, xylenesulfonic acid, cumenesulfonic acid and their sodium, potassium or magnesium salts are preferable, and p-toluenesulfonic acid is particularly preferable.

  In the present invention, a solvent other than the component (a) [hereinafter referred to as the component (h)] can be contained as an object for improving storage stability and as a viscosity modifier. Specific examples of the solvent are preferably water-soluble organic solvents selected from ethanol, isopropyl alcohol, ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin, isoprene glycol, propylene glycol monomethyl ether, and propylene glycol monoethyl ether.

<Liquid cleaning composition>
The contents of the components (a) to (d) in the liquid detergent composition of the present invention are as follows.

  The content of the component (a) is from 0.1 to 10% by mass, preferably from 0.3 to 7% by mass, more preferably from 0.5 to 5% by mass, from the viewpoint of improving luster during washing and rinsing. It is.

  The content of the component (b) is from 0.1 to 5% by mass, preferably from 0.1 to 3% by mass, more preferably from the viewpoint of increasing the emulsifying power of the composition with respect to oil and increasing the detergency. ~ 2% by weight.

  (C) Content of a component is 5-50 mass% from the point of a detergency, Preferably it is 10-45 mass%, More preferably, it is 10-40 mass%.

  (D) Content of a component is 0.1-30 mass% from the point of foaming property and foaming persistence, Preferably it is 0.5-20 mass%, More preferably, it is 1-15 mass%.

  The contents of components other than the components (a) to (d) in the liquid detergent composition of the present invention are as follows.

  The component (e) is preferable because it can obtain a high cleaning effect due to the interaction with the component (c), and can be used in combination with the component (a) to further reduce sliminess. (E) Content of a component is 0.01-2 mass% as magnesium, More preferably, it is 0.05-1 mass%, Most preferably, it is 0.1-1 mass%. Further, the molar ratio [(c) / (e)] of the component (c) and the component (e) (as magnesium) is preferably 300/1 to 1/1, more preferably 100/1 to 1/1. Most preferably, it is 50/1-2/1.

  The component (f) is preferably contained for the purpose of enhancing the cleaning effect and improving storage stability. In particular, the compound of the general formula (6) is excellent in the above effect. However, a large amount of blending tends to promote luster when washing dishes, and tends to reduce the effect of component (a). For this reason, the content of the component (f) is preferably 0.1 to 20% by mass, more preferably 0.5 to 15% by mass, and particularly preferably 1.0 to 15% by mass.

  The component (g) is preferably contained from the viewpoint of storage stability, and the content of the component (g) is preferably 0.1 to 10% by mass, more preferably 1 to 10% by mass, and particularly preferably 2%. -6 mass%.

  The component (h) is preferable in terms of improving storage stability, and is also effective as a viscosity modifier. The content of the component (h) is preferably 1 to 20% by mass, more preferably 5 to 20% by mass, and particularly preferably 5 to 15% by mass.

  The composition of the present invention is in a liquid form in which the above-described components are dissolved or dispersed in water, and the content of water is preferably 20 to 60% by mass, more preferably 30 to 30% from the viewpoint of storage stability. 60 mass%, More preferably, it is 40-60 mass%, Most preferably, it is 45-55 mass%.

  The pH of the composition of the present invention at 20 ° C. is preferably 6.0 to 8.0, preferably 6.5 to 7.5 from the viewpoint of maintaining the emulsifying power.

  Examples of pH adjusters include inorganic acids such as hydrochloric acid and sulfuric acid, acid agents such as citric acid, succinic acid, malic acid, fumaric acid, tartaric acid, malonic acid, and maleic acid, and sodium hydroxide and hydroxide. Preferably, alkali agents such as potassium carbonate, ammonia and derivatives thereof, amine salts such as monoethanolamine, diethanolamine, and triethanolamine are used alone or in combination, such as sodium carbonate and potassium carbonate, particularly from hydrochloric acid, sulfuric acid, and citric acid. It is preferable to use an acid selected and an alkali agent selected from sodium hydroxide and potassium hydroxide. Any compound is blended within a range that does not have a great influence on the viscosity characteristics.

  From the viewpoint of ease of use, the composition of the present invention has a viscosity at 20 ° C. of preferably 10 to 1000 mPa · s, more preferably 30 to 700 mPa · s, and particularly preferably 50 to 500 mPa · s. Such a viscosity range can be adjusted using, for example, the above-described component (g), component (h), and the like.

  The viscosity as used in the present invention is measured as follows. First, a B-type viscometer model BM manufactured by TOKIMEC. INC is provided with a rotor of rotor number No. 2. The sample is filled in a tall beaker and adjusted to 20 ° C. in a thermostatic bath. A sample adjusted to a constant temperature is set in a viscometer. The rotational speed of the rotor is set to 60 r / m, and the viscosity 60 seconds after the start of rotation is taken as the viscosity of the present invention.

  As other components, as long as the viscosity characteristics are not affected, components usually blended in a liquid detergent such as a fragrance component, a sterilizing component, a preservative, a turbidity agent, and a colorant can be blended.

  The liquid detergent composition of the present invention is suitable as a liquid detergent composition for hard surfaces (particularly for kitchens) such as washing dishes, cooking utensils, and kitchenware.

  The liquid cleaning composition of the present invention is a method of cleaning by impregnating a flexible material (preferably containing water) such as a sponge and directly contacting a hard surface such as tableware or cooking utensils. It is excellent in that it can suppress the sliminess of dishes and cooking utensils during washing, and can be quickly removed during rinsing.

  A liquid detergent composition was prepared using the components shown in Tables 1 and 3. The feel and detergency of these compositions were evaluated by the following methods. The results are shown in Table 1. Table 2 shows an example of blending a kitchen liquid detergent composition having the effects of the present invention.

<Feel evaluation>
1 g of model oil stain in which 0.1% by weight of pigment (Sudan Red) was uniformly mixed with salad oil was spread evenly on a ceramic plate, and 5 g of tap water was placed on the dish to make a model contaminated tableware.

  A commercially available new sponge (flexible absorber, Kikuron) is rinsed with tap water and squeezed until the tap water content is 10 g, and then impregnated with 1 g of the composition shown in Table 1 and 20 g of tap water. After the sponge was foamed by hand on the model-contaminated tableware 2 to 3 times, 5 model-contaminated tableware were scrubbed, and the wetness during the washing was subjected to sensory evaluation based on the following criteria. Next, the model-contaminated tableware that had been washed was rinsed with tap water, and the sensory evaluation was performed based on the following criteria to determine whether it was easy to get wet during rinsing.

[Standard for sliminess during cleaning]
○: Not very slippery.
Δ: Slightly slim.
X: Very slimy.

[Standard for ease of slipping during rinsing]
○: It is possible to get a slimy immediately.
Δ: It takes a little time before the sliminess is removed.
X: It takes time until the sliminess is removed.

<Detergency test>
1 g of model oil stain in which 0.1% by weight of a pigment (stan red) was uniformly mixed with salad oil was spread evenly on a polypropylene plate, and 5 g of tap water was further placed on the model contaminated tableware.

  A commercially available new sponge (flexible absorber, Kikuron) is rinsed with tap water and squeezed until the tap water content is 10 g, and then impregnated with 1 g of the composition shown in Table 1 and 20 g of tap water. After the sponge was bubbled with the hand 2-3 times on the model-contaminated tableware, the model-contaminated tableware was rubbed and the number of dishes that could be washed (confirmed by the disappearance of the color attached to the tableware) was determined.

(Note) The symbols in the table represent the following.
GE-2EH: 2-ethylhexyl monoglyceryl ether (99% by mass or more of monoglyceryl ether)
GE-isoC5: isoamyl monoglyceryl ether (99% by mass or more of monoglyceryl ether)
GE-C8: n-octyl monoglyceryl ether (99% by mass or more of monoglyceryl ether)
GE-C10: n-decyl monoglyceryl ether (99% by mass or more of monoglyceryl ether)
MG-2EH: 2-ethylhexanoic acid monoglyceride (mixture of diglyceride and triglyceride, monoglyceride content in glyceride is 80%)
AG-2EH: alkyl glycoside whose alkyl group is a 2-ethylhexyl group, the average degree of condensation of glucose is 1.3
EO-2EH: polyethylene glycol 2-ethylhexyl ether, ethylene glycol average addition mole number 4
AG-IN: alkyl glycoside whose alkyl group is an iso-nonyl group, the average degree of condensation of glucose is 1.3
AG-ID: alkylglycoside whose alkyl group is an iso-decyl group, the average condensation degree of glucose is 1.3
B-1: N, N, N ′, N′-tetramethylethylenediamine b-2: N, N, N ′, N′-tetramethylpropylenediamine b-3: p-cyclohexanediamine ES-I : Sodium polyoxyethylene alkyl ether sulfate [The raw material alcohol is an alcohol obtained by hydroformylating 1-decene and 1-dodecene 50/50 (mass ratio) as raw materials. After adding an average of 2 moles of EO to this alcohol, it was sulfated with sulfur trioxide and neutralized with sodium hydroxide. The ratio of the total polyoxyethylene branched chain alkyl ether sulfate sodium in the total polyoxyethylene alkyl ether sulfate sodium was 42% by mass. ]
ES-II: ammonium polyoxyethylene coconut alkyl ether sulfate (EO average addition mole number 2 mol)
ES-III: ammonium polyoxyethylene lauryl ether sulfate (EO average addition mole number 4 mol)
AO-I: N-decyl-N, N-dimethylamine oxide / N-lauryl-N, N-dimethylamine oxide / N-myristyl-N, N-dimethylamine oxide = 25/50/25 (mass ratio)
AO-II: N-lauramidopropyl-N, N-dimethylamine oxide DEA-I: Palm kernel oil fatty acid diethanolamide Sulfobetaine: N-lauryl-N, N-dimethyl-N- (2-hydroxy -1-sulfopropyl) ammonium sulfobetaine nonion-I: 12- and 13-carbon mixed alkyl secondary alcohol with an average of 7 mol of EO (Softanol 70H, manufactured by Nippon Shokubai Co., Ltd.)
Nonionic-II: Alkyl glucoside having an alkyl group composition of 12 carbons / 14 carbons = 60/40 (molar ratio) mixed alkyl and an average degree of glucoside condensation of 1.5. P-TS: sodium p-toluenesulfonate -PG: Propylene glycol-Antiseptic: Proxel BDN (manufactured by Avicia)
-Fragrance | flavor: The fragrance | flavor component of Table 3.-pH: It adjusted using 1N-sulfuric acid aqueous solution or 1N-sodium hydroxide.

Claims (1)

(A) 0.1 to 10% by mass of a compound of the following general formula (1),
(B) 0.1 to 5% by mass of a diamine compound of the following general formula (2),
(C) 5 to 50% by mass of an anionic surfactant having a hydrocarbon group having 10 to 18 carbon atoms,
(D) 0.1 to 30% by mass of a surfactant selected from amine oxide surfactants having a hydrocarbon group having 8 to 18 carbon atoms, amphoteric surfactants, and alkanolamide surfactants, and water A liquid detergent composition having a pH (20 ° C.) of 6.0 to 8.0.
R ^1a -A-B (1)
[Wherein, R ^1a is a C 7-10 alkyl group having one or more tertiary carbons or quaternary carbons, and A is a group selected from —O—, —COO—, and —CONH—. B is a group having 3 to 12 carbon atoms having 2 to 10 hydroxy groups, or-(R ^1b O) _a -H (where R ^1b is an alkylene group having 2 or 3 carbon atoms, and a is It is an average added mole number and represents a number of 1 to 5). ]

[Wherein, R ^2a , R ^2b , R ^2d and R ^2e are each independently a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, and R ^2c is an ether group, An alkylene group or a cycloalkylene group having 2 to 6 carbon atoms which may be divided by an ester group or an amide group and may be substituted by a hydroxy group is shown. ]