JP5130595B2 - Liquid detergent composition for kitchen - Google Patents

Description

  The present invention relates to a liquid detergent composition suitable for washing kitchen utensils, cooking utensils and the like, and further, a liquid detergent composition for kitchen which has excellent foam quality, quick foaming and can provide good sterilization performance. About.

In recent years, many methods have been proposed for kitchen detergents that are hypoallergenic and improve foaming power and cleaning power. In addition, many studies and proposals have been made on anionic surfactants which are main surfactants in this field. Among them, alkane sulfonates having good hard water resistance are washed in Patent Documents 1 to 3. Improvements in force and foam persistence and low temperature stability have been proposed. On the other hand, the cleaning behavior of tableware and cooking utensils in general households is that many consumers use detergent such as sponges containing water to scrub the items to be washed, so the initial foaming condition is easy to clean. It becomes an important factor for the performance of the performance and initial cleaning power. However, the proposal does not improve the foam quality or the speed of foaming.
The present applicant has also proposed the use of alkane sulfonates in Patent Documents 4 and 5, but it is insufficient in terms of the speed of foaming and the provision of sterilization properties.

Japanese Patent Laid-Open No. 51-16306 JP-A-2-113100 JP 2003-138297 A JP 2004-196987 A JP 2005-89590 A

  This invention makes it a subject to provide the liquid detergent composition for kitchens which was excellent in foam quality and foaming quickly, and also provided the favorable disinfection property.

As a result of intensive studies in order to solve the above-mentioned problems, a liquid detergent composition for kitchen having excellent foam quality and quick foaming and imparting better sterilization properties was obtained, and the present invention was completed. . That is, the present invention
The following (A) component, (B) component, (C) component, (D) component and (E) component are contained, and (A) / (B) mass ratio is 4/3 to 8/1, And [(A) + (B)] / (C) in a mass ratio of 2/1 to 8/1.
The component (A) is a polyoxyethylene alkyl ether sulfate ester salt represented by the following general formula (1), and its content is 5 to 30% by mass.
^{_{R 1 O- (CH 2 CH 2}} O) n 1 -SO 3 M ··· (1)
(R ¹ is an alkyl group having 8 to 18 carbon atoms, n ₁ is the average number of moles added of ethylene oxide group, and is in the range of 1 to 6. M is a hydrogen atom, alkali metal, alkaline earth metal, alkanol. Amine or ammonium.)
(B) component is alkanesulfonic acid and / or its salt, the content is 1-10 mass%,
(C) component is an amine oxide type surfactant, the content is 1-10 mass%,
(D) component is aromatic sulfonic acid or its salt, the content is 1-10 mass%,
(E) A component is a zinc compound and the content is 0.01-2 mass%.

The present invention also includes the following component (A), component (B), component (C), component (D) and component (E), and (A) / (B) mass ratio of 4/3 to 8: And a mass ratio of [(A) + (B)] / (C) is 2/1 to 8/1.
The component (A) is a polyoxyethylene alkyl ether sulfate salt represented by the following general formula (1):
^{_{R 1 O- (CH 2 CH 2}} O) n 1 -SO 3 M ··· (1)
(R ¹ is an alkyl group having 8 to 18 carbon atoms, n ₁ is the average number of moles added of ethylene oxide group, and is in the range of 1 to 6. M is a hydrogen atom, alkali metal, alkaline earth metal, alkanol. Amine or ammonium.)
(B) component is alkanesulfonic acid and / or its salt, the content is 1-10 mass%,
(C) component is an amine oxide type surfactant,
(D) component is aromatic sulfonic acid or its salt, the content is 1-10 mass%,
(E) A component is a zinc compound, and the content is 0.003-0.45 mass% in conversion of a zinc ion concentration.

  ADVANTAGE OF THE INVENTION According to this invention, the liquid detergent composition for kitchens which has the outstanding foam quality, has quick foaming, and exhibits further favorable disinfection property is obtained. The composition of the present invention is also excellent in low temperature stability and detergency.

(A) Component The polyoxyethylene alkyl ether sulfate salt that can be used in the present invention is represented by the above general formula (1).
In the general formula (1), R ¹ is a linear or branched alkyl having 8 to 18 carbon atoms, preferably 10 to 16 carbon atoms, more preferably 12 to 13 carbon atoms. If R ¹ is less than 8, sufficient detergency cannot be obtained because of insufficient hydrophobicity. Further, kitchen liquid detergent composition of the present invention, although the components are prepared by dissolving in water, if R ¹ is greater than 18, the water of the surfactant per se of the formula (1) This is not preferable because the solubility in the aqueous solution decreases and precipitation tends to occur during storage.
n ₁ is the average number of added moles of ethylene oxide groups, and is 1 to 6 moles, preferably 1 to 4 moles, more preferably 1 to 3 moles from the viewpoint of detergency against oil stains and foam quality.
M is a hydrogen atom, an alkali metal such as sodium or potassium, an alkaline earth metal such as calcium or magnesium, an alkanolamine such as triethanolamine, or ammonium. Among these, an alkali metal is preferable and sodium is more preferable.

As the component (A), R ¹ in the formula (1) is a branched alkyl group, the branching ratio is 25% by mass or more, and the intermediate chain branch is 40% by mass or more in the branched alkyl group. Polyoxyethylene alkyl ether sulfate ester salts are preferred.

Here, “branch ratio” and “medium chain branch ratio” will be described by taking, as an example, a primary higher alcohol which is a raw material for the polyoxyethylene alkyl ether sulfate salt which is the component (A) represented by the formula (1). To do. The higher alcohol is, for example, a mixture of a branched higher alcohol represented by the following formulas (2) to (3) and a linear higher alcohol represented by the formula (4).

In the formulas (2) to (4), R ²¹ , R ²³ and R ³¹ are alkyl groups having 1 or more carbon atoms, R ²² and R ³² are alkyl having 2 or more carbon atoms, and p is 1. , Q is 2 or 3, and r is an integer of 1 or more. The total number of carbon atoms in each formula is equal to the carbon number of R ¹ in formula (1).
“Branching rate” is the branched alkyl group in the compound represented by the above formula (2) + (3) with respect to the total mass of the alkyl moiety in the compound represented by the above formula (2) + (3) + (4). The ratio of the mass of
The “intermediate chain branching ratio” is the ratio of the intermediate chain branched alkyl in the compound represented by the above formula (3) to the total mass of the alkyl moiety in the compound represented by the above formula (2) + (3) + (4). Represents the percentage of mass.

The branching rate and the intermediate chain branching rate can be measured under the following conditions using GC / MS.
<Measurement conditions for GC / MS>
Column: Ultra Alloy PY-1
Temperature: Oven; Temperature rising rate 10 ° C / min 50 → 310 ° C
Inlet; 310 ° C
Detector: 310 ° C
Carrier gas: He

Table 1 shows the results of measuring the branching rate and the intermediate chain branching rate using Sasol 23 of Sasol.

Furthermore, in the polyoxyethylene group in the component (A), a polyoxyethylene alkyl ether sulfate ester salt in which the distribution of the number of moles of ethyleneoxycide defined by the following formula is 55% or more is more preferable. . When the narrow ratio is 55% or more, preferably 60% or more, more preferably 65% or more, the low temperature stability of the composition becomes better.
Narrow ratio = Y _max-2 + Y _max-1 + Y _max + Y _{max + 1} + Y _{max + 2}
(Here, the ratio in which the number of moles of ethylene oxide added is i is Y _i, and the maximum value Y _i takes is determined based on the total amount of polyoxyethylene alkyl ether sulfate salt represented by the formula (1)). Y _max
The value of the number of moles of ethylene oxide added when Y _i takes Y _max is n _max ,
n is the value of Y _i when an (n _max -2) and Y _max-2,
The value of Y _i when n is (n _max −1) is Y _max−1 ,
The value of Y _i when n is (n _max +1) is Y _{max + 1} ,
The value of Y _i when n is (n _max +2) is Y _{max + 2} .
However, when n _max−2 , n _max−1 or n _max is zero, Y _max−2 , Y _max−1 or Y _max is not counted. )

  As a method for producing such a polyoxyethylene alkyl ether sulfate having a high narrow ratio, that is, a polyoxyethylene alkyl ether sulfate having a narrow distribution of the number of added moles of ethylene oxide, for example, a higher alcohol and ethylene oxide can be produced by a conventional method. From the synthesized reaction product, a polyoxyethylene alkyl ether (alcohol ethoxylate) having a desired molecular weight range, that is, a desired number of moles of ethylene oxide added is fractionated by distillation or the like, and then subjected to a sulfation reaction. Obtained by summing. Further, by the method described in Example 1 of Japanese Patent No. 3312883, that is, a method using a specific catalyst, a polyoxyethylene alkyl ether having a narrow ethylene oxide addition mole number distribution with a narrow rate of 55% or more is obtained. Since it can be obtained, it can also be obtained by sulfating and neutralizing it.

The (A) component polyoxyethylene alkyl ether sulfate ester salt is obtained by adding an ethylene oxide by a usual method to the higher alcohol and then sulfating and neutralizing with sulfone. .
As alcohol used as the raw material of the polyoxyethylene alkyl ether sulfate ester salt which can be used in this invention, the following are mentioned, for example.
(A) Product name Neodol 23 (branch rate: 20%) manufactured by Shell Chemicals. This is produced from an n-olefin by a modified oxo method and rectified.
(B) C13 alcohol obtained from butene trimer by oxo method (branching rate: 100%)
(C) Higher alcohol (branch rate 100%) obtained from a medium chain alcohol by garvet reaction
(D) Product name Safol 23 (branch rate 50%), manufactured by Sasol. In this method, an olefin obtained from gasification of coal is obtained by obtaining an alcohol by the oxo method and further hydrogenating it.
These alcohols are commercially available in industrial grade.

  The component (A) is preferably contained in the composition in an amount of 5 to 30% by mass (hereinafter simply referred to as “%” means “% by mass”). More preferably it is included. When the component (A) is less than 5%, the low temperature stability, cleaning performance, and foaming ability may be inferior, and even if it exceeds 30%, the low temperature stability and cleaning performance are not significantly improved.

(B) Component The alkanesulfonic acid and / or salt thereof that can be used as the component (B) is also called paraffin sulfonic acid and / or salt thereof, and belongs to an anionic surfactant. Compared with a surfactant, it is superior in terms of detergency, foaming and hard water resistance. By including the component (B), it is excellent in terms of fine foam quality.
Examples of the alkanesulfonic acid and / or salt thereof that can be used in the present invention include 10 to 21 carbon atoms per molecule, preferably at least 80% by mass, and more preferably at least 90% by mass per molecule. Secondary alkyl sulfonic acids having ˜17 carbon atoms, or mixtures of said secondary alkyl sulfonic acids with small amounts of primary alkyl sulfonic acids, disulfonic acids or polysulfonic acids and / or their salts.
Examples of the salt include alkali metal salts, ammonium salts, and alkanolamine salts such as sodium, potassium, ammonium, and mono, di, and triethanolamine salts.
Examples of the salt include alkali metal salts, ammonium salts, and alkanolamine salts such as sodium, potassium, ammonium, and mono, di, and triethanolamine salts.
(B) Content of a component is 1-10 mass% in a composition, Preferably it is 1-8 mass%, More preferably, it is 2-6 mass%. When the amount of the component (B) is in such a range, it is preferable because good foam quality, which is the effect of the present invention, can be obtained.

In the present invention, from the viewpoint of good foam quality and low temperature stability, the mass ratio of the component (A) to the component (B) needs to be 4/3 to 8/1.
When the mass ratio of (A) / (B) is less than 4/3, the foam quality is deteriorated due to a decrease in low-temperature stability and a decrease in foam film stability. Moreover, when it exceeds 8/1, the speed of foaming will be inferior.

Component (C) The component (C) is an amine oxide surfactant that is a semipolar surfactant.
The alkyl group or the like of the component (C) may be linear or branched, or a mixture thereof. The carbon number is preferably 8 to 16 and more preferably 10 to 14 from the viewpoint of detergency.
Specific examples include alkyl dimethyl amine oxide, alkanoyl amide alkyl dimethyl amine oxide, alkyl diethyl amine oxide, and the like.

  (C) Content of a component is 1-10 mass% in a composition, Preferably it is 1-8 mass%, More preferably, it is 2-6 mass%. When the content of the component (C) is less than 1% by mass, an improvement in cleaning performance due to a synergistic effect with the component (A) is not expected. On the other hand, if it exceeds 10% by mass, the composition becomes highly viscous and the fluidity tends to be lost. In addition, since the component (C) undergoes a charge change depending on the pH and the interaction with the component (A) may change, it is preferable to adjust the pH in the composition of the present invention. The pH is 5.5 to 7.5 at 25 ° C., more preferably 6.0 to 7.0. When the pH is less than 5.5, the component (C) has a strong interaction with the components (A) and (B) and tends to cause gelation or solidification, and is larger than 7.5. In some cases, the interaction becomes too weak, and the effect of improving the cleaning performance may be reduced.

In the present invention, from the viewpoint of good foam quality, low temperature stability, and detergency, the mass ratio of [(A) component + (B) component] / (C) component is 2/1 to 8/1. is necessary.
If the mass ratio is less than 2/1, the low-temperature stability is particularly inferior, and if it exceeds 8/1, the detergency is reduced, which is not preferable.

(D) Component As aromatic sulfonic acid and / or its salt used as (D) component of this invention, various aromatic sulfonic acid and / or its salt can be used. Specific examples include toluenesulfonic acid, xylenesulfonic acid, cumenesulfonic acid, substituted or unsubstituted naphthalenesulfonic acid and / or a salt thereof. Examples of the salt include sodium, potassium, calcium, magnesium, ammonium and alkanolamine salts. These can be used alone or in admixture of two or more. Preferred are toluene sulfonic acid, xylene sulfonic acid, cumene sulfonic acid and / or a salt thereof, but cumene sulfonic acid and / or a salt thereof is most preferable from the viewpoint of quick foaming and sterilization performance.

  Content of these (D) components is 1-10 mass% with respect to the composition whole quantity, Preferably, it is 2-8 mass%, More preferably, it is 2-6 mass%. If it is less than 1% by mass, improvement in low-temperature stability, improvement of foaming speed and sterilization performance cannot be expected. On the other hand, even if it exceeds 10 mass%, a further effect cannot be exhibited.

(E) Component The zinc compound of (E) component of this invention is a zinc compound which melt | dissolves in the liquid cleaning composition for kitchens of this invention, and produces | generates a zinc ion. Specific examples include zinc sulfate, zinc chloride, zinc gluconate, zinc bromide, zinc nitrate, ammonium zinc chloride, zinc acetate, zinc ammonium sulfate, zinc aluminum sulfate, potassium zinc sulfate, and zinc iodide. The zinc compound as the component (E) may form a counter ion as the component (A).

(E) Content of a component is 0.01-2 mass% with respect to the composition whole quantity, Preferably it is 0.05-1.5 mass%, More preferably, it is 0.1-1 mass%. . If it is less than 0.01% by mass, improvement in sterilization performance cannot be expected, and even if it exceeds 2% by mass, further improvement in sterilization effect cannot be expected.
When the content of the component (E) is expressed in terms of zinc ion concentration, it can be obtained from the following formula from the atomic weight of zinc 65.4 and the molecular weight of various zinc compounds.
Zinc ion content (mass%) = Zinc compound content (mass%) × 65.4 / Zinc compound molecular weight When converted to zinc ion concentration, the content of component (E) is 0.003 based on the total amount of the composition. It is -0.45 mass%, Preferably it is 0.012-0.33 mass%, More preferably, it is 0.023-0.22 mass%. If it is less than 0.003 mass%, the sterilization performance cannot be exhibited. On the other hand, even if it exceeds 0.45 mass%, further improvement of the sterilization effect cannot be expected.

In the liquid detergent composition of the present invention, various arbitrary components can be blended depending on the purpose and application within the range not impairing the effects of the present invention.
Surfactants that can be blended include polyoxyethylene alkyl sulfates other than formula (1), α-olefin sulfonates, alkyl benzene sulfonates, α-sulfo fatty acid salts, fatty acid soaps, phosphate ester-based surfactants Anionic surfactants such as agents, acylalaninates, and acyl taurates can be mentioned, and 0 to 10% by mass can be blended in the liquid detergent composition of the present invention.
In addition, nonionic surfactants such as polyoxyalkylene alkyl ethers, fatty acid polyoxyalkylene alkyl ethers, fatty acid alkanolamides, fatty acid alkanol glucamides, alkyl polyglucosides, alkyl glyceryl ethers, sucrose fatty acid esters, and the like can be mentioned. It is possible to mix | blend 0-20 mass% in this liquid detergent composition.
In addition, amphoteric or amphoteric surfactants such as alkyl acetate betaines, alkanolamidopropyl acetate betaines, alkyl imidazolines, and alkyl alanines, and cationic surfactants such as alkyl trimethyl ammonium salts, dialkyl dimethyl ammonium salts, and alkyl pyridinium salts. .

  In addition, aromatic carboxylic acids such as benzoates, ethanol, various fragrance-modified ethanol, water-soluble solvents such as isopropanol and butyl carbitol, hydroxycarboxylic acids such as glycolic acid, lactic acid, malic acid, citric acid, tartaric acid, and gluconic acid Acids, polycarboxylic acids such as oxalic acid, malonic acid, succinic acid, fumaric acid, aminocarboxylic acids such as ethylenediaminetetraacetic acid, nitriloacetic acid, hydroxyethylethylenediaminetriacetic acid, diethylenetriaminepentaacetic acid, triethylenetetraminehexaacetic acid, poly Polymeric carboxylic acid chelating agents such as acrylic acid, polymaleic acid, polyacrylic acid / polymaleic acid copolymers, inorganic builders such as sodium sulfate and magnesium sulfate, viscosity modifiers, colorants, antioxidants, preservatives , Bactericides, disinfectants, anti-inflammatory agents, medicinal ingredients, fragrances, Usually the components used, such as natural extracts can also be suitably formulated.

The viscosity of the composition of the present invention at 25 ° C. is preferably 50 to 500 (mPa · s). Preferably it is 50-300, More preferably, 80-200 is good. When it is less than 50, a problem of dripping may occur, and when it is more than 500, dischargeability from the container may deteriorate. As the viscosity modifier, a solvent, an organic salt, an inorganic salt, or a polymer having a hydrotrope effect for improving low-temperature stability is preferable. The viscosity of the composition of the present invention was filled with 90 g of the composition of the present invention in a PS11 bottle, adjusted to 25 ° C. in a 25 ° C. constant temperature bath, and No. in the Bismetron VDA viscometer manufactured by Shibaura System Co., Ltd. . This can be determined by installing a 2-rotor, setting a constant temperature sample solution, first setting the rotational speed of the rotor to 60 rpm, and measuring the viscosity after 20 seconds.
The composition of the present invention can be produced by adding the components (A) to (E) and, if necessary, optional components to water and mixing them.

EXAMPLES Next, although an Example and a comparative example demonstrate this invention further in detail, this invention is not limited to the following Example etc. Examples 7, 8, and 12 are reference examples.
The component (A) was produced as follows.
[Manufacture of SBRES]
In a 4 L autoclave, 400 g of a product name Safol 23 alcohol [C12, 13 alcohol (6/4): branching rate 50%] manufactured by Sasol Co., Ltd. and 0.8 g of a potassium hydroxide catalyst were charged, and the inside of the autoclave was purged with nitrogen. The temperature was raised with stirring. Thereafter, 184 g of ethylene oxide was introduced while maintaining the temperature at 180 ° C. and the pressure of 0.3 mPa, to obtain a reaction product having an average added mole number of ethylene oxide of 2. The ethylene oxide addition mole number distribution is shown in Table 2 as a result of measurement by HPLC under the following conditions * 1.
Next, 280 g of the alcohol ethoxylate thus obtained was placed in a 500 mL flask equipped with a stirrer, and after nitrogen substitution, 78 g of liquid sulfuric anhydride (sulfan) was slowly added dropwise while maintaining the reaction temperature at 40 ° C. After completion of the dropwise addition, stirring was continued for 1 hour (sulfation reaction) to obtain polyoxyethylene alkyl ether sulfuric acid, which was then neutralized with an aqueous sodium hydroxide solution. Thus obtained polyoxyethylene alkyl ether sodium sulfate (SBRES) was obtained.
[Manufacture of NNRES]
In a 4 L autoclave, made of Shell Chemicals, brand name Neodol 23 alcohol [C12, 13 alcohol (1/1): branching rate 20%] 400 g and Al / Mg / Mn described in Japanese Patent No. 3312883 The mixed metal oxide Lewis acid sintered solid catalyst 0.4g was charged, the inside of the autoclave was purged with nitrogen, and the temperature was raised while stirring. Thereafter, 184 g of ethylene oxide was introduced while maintaining the temperature at 180 ° C. and the pressure of 0.3 mPa, to obtain a reaction product having an average added mole number of ethylene oxide of 2. The ethylene oxide addition mole number distribution is shown in Table 2 as a result of measurement by HPLC under the above condition * 1.
Next, 280 g of the alcohol ethoxylate thus obtained was placed in a 500 mL flask equipped with a stirrer, and after nitrogen substitution, 78 g of liquid sulfuric anhydride (sulfan) was slowly added dropwise while maintaining the reaction temperature at 40 ° C. After completion of the dropwise addition, stirring was continued for 1 hour (sulfation reaction) to obtain polyoxyethylene alkyl ether sulfuric acid, which was then neutralized with an aqueous sodium hydroxide solution. Thus obtained polyoxyethylene alkyl ether sodium sulfate (NNRES) was obtained.

[Manufacture of SNRES]
In a 4 liter autoclave, 400 g of Sasol 23 alcohol [C12, 13 alcohol (6/4): branching rate 50%], manufactured by Sasol Co., was taken, and then synthesized in the same manner as NNRES to obtain SNRES.

* 1: Measurement conditions for ethylene oxide addition mole number distribution Apparatus: LC-6A (manufactured by Shimadzu Corporation)
Detector: SPD-10A
Measurement wavelength: 220 nm
Column: Zorbax C8 (manufactured by Du Pont)
Mobile phase: acetonitrile / water = 60/40 (volume ratio)
Flow rate: 1 mL / min
Temperature: 20 ° C

Hereinafter, the synthesized component (A) is summarized.
SBRES: sodium C12-13 polyoxyethylene alkyl ether sulfate [average EO chain length of 2 mol (narrow ratio 33%), raw alcohol: (manufactured by Sasol, C12 / C13 = 6/4, branching ratio 50%, intermediate chain branching) Rate 85%)]
NNRES: C12-13 sodium polyoxyethylene alkyl ether sulfate [average EO chain length 2 mol (narrow rate 77%), raw alcohol: Neodol 23 (manufactured by Shell Chemicals, C12 / C13 = 1/1, branching rate 20%, intermediate Chain branching rate 0%)]
SNRES: sodium C12-13 polyoxyethylene alkyl ether sulfate [average EO chain length 2 mol (narrow rate 78%), raw material alcohol: Safol 23 alcohol (manufactured by Sasol, C12 / C13 = 6/4, branching rate 50%, intermediate) Chain branching rate 85%)]

Components (B) to (E) and optional components used in Examples and Comparative Examples are as follows.
(B) Component SAS: Secondary alkane sulfonate sodium (manufactured by Clariant Japan Co., Ltd., HOSTAPUR SAS 60)
(C) Component AX: C12 alkyldimethylamine oxide (manufactured by Lion Akzo, trade name: Aromox DM12D-W)
(D) component cumene sulfonate Na: cumene sulfonate sodium (Taika Co., Ltd., Teikatox N5040)
pTS-H: p-toluenesulfonic acid (Taika Co., Ltd., Teikatox 300)
(E) Component ZnSO4 · 7 hydrate: Zinc sulfate heptahydrate (manufactured by Junsei Chemical Co., Ltd., reagent grade)
(Optional component)
Glycolic acid: Glycolic acid (DuPont Co., Ltd., Gripure 70)
Sulfamic acid: Sulfamic acid (manufactured by Fuso Chemical Industries)
EtOH: Ethanol (made by Junsei Chemical Co., Ltd., reagent grade)
Sodium benzoate: Sodium benzoate (Fushimi Pharmaceutical Co., Ltd.)
MgSO4 · 7 hydrate: Magnesium sulfate (Ako Kasei Co., Ltd.)
Mg (OH) ₂ : Magnesium hydroxide (Pure Chemical Co., Ltd.)
PEG: Polyethylene glycol (molecular weight 1000) (manufactured by Lion Corporation, PEG # 10
00)
Fragrance: Fragrance composition A described in JP-A No. 2002-327194

Using the components (A) to (E) and common components described above, liquid detergent compositions of Examples and Comparative Examples were prepared according to the formulations shown in Tables 3 and 4. Each composition was prepared by mixing each component, and the pH of each composition was adjusted to 6.5 with sodium hydroxide or sulfuric acid. The pH of the composition was measured at 25 ° C. according to JIS K 3362. The obtained composition was evaluated by the method shown below.
<Evaluation method>
(Evaluation method of foam quality)
Take 38 g of tap water and 2 g of detergent composition on a dishwashing sponge measuring 11.5 cm x 7.5 cm x 3 cm, take the foam when it is squeezed by hand 10 times on a slide glass, place the cover glass, and press lightly. Flatten the foam. This was observed with a microscope, and the particle size of the bubbles was evaluated based on the following evaluation criteria (the number of bubbles observed was 100%).
Evaluation criteria: ○ to ◎ are acceptable ◎: 90% or more when the bubble particle size is 1 mm or less ○: 70% or more but less than 90% when the bubble particle size is 1 mm or less △: Bubble particle size is 1 mm The following is 50% or more and less than 70% x: The foam particle size is 1 mm or less and less than 50%

(Evaluation method of foaming speed)
Take 38 g of tap water and 2 g of detergent composition in a dishwashing sponge of 11.5 cm x 7.5 cm x 3 cm, measure the volume of foam when squeezed by hand 10 times with a graduated cylinder, and meet the following evaluation criteria Based on the evaluation.
Evaluation criteria: ○ to ◎ are acceptable range ◎: Foam volume is 250 ml or more ○: Foam volume is 220 ml or more and less than 250 ml Δ: Foam volume is 200 ml or more and less than 220 ml x: Foam volume is less than 200 ml

(Evaluation of sterilization effect)
Using Staphylococcus aureus cultured at 37 ± 1 ° C. for 18-24 hours on an agar plate medium, the bacterial concentration is about 1.0 × 10 ⁸ cfu / m in 0.3% neutral medium and 3 ° DH hard water. 1 to prepare. Next, 0.5 ml of the above bacterial solution was inoculated into a cylindrical sponge having a diameter of 2.4 cm and a height of 3 cm contained in a screw-cap bottle with a capacity of 110 ml, and uniformly mixed with a sterile glass rod. . After sealing the bottle, it was conditioned for 1 hour at 25 ± 1 ° C., and 0.5 ml sponge was inoculated with each kitchen detergent composition. Next, it was uniformly squeezed with a new sterilized glass rod, sealed again, and left at 25 ± 1 ° C. for 18 hours. After standing, 20 ml of the SCDLP medium inactivating agent was added to the screw-mouth bottle, and the sponge was uniformly mixed with a sterilized glass rod. Using this solution, a 10-fold dilution series is prepared, the number of colonies is measured by pour plate culture on tryptic soy agar medium, and the logarithm of the number of bacteria after the above test is subtracted from the logarithm of the initial number of bacteria. The numerical value obtained by this was made into the disinfection activity value, and it judged on the following reference | standard.
Evaluation criteria: ○ to ◎ are acceptable range Bactericidal activity value: 5 or more… ◎
Bactericidal activity value: 3 or more and less than 5 ...
Bactericidal activity value: 2 or more and less than 3 ...
Bactericidal activity value: Less than 2 ×

(Evaluation of low temperature stability)
The appearance after the composition was filled in a 100 ml glass bottle and stored in a thermostatic bath at −5 ° C. for 1 month was determined according to the following evaluation criteria.
Evaluation criteria: ○ to ◎ are acceptable range ◎: Uniform transparent ○: Volume in which precipitates are present is less than 5% of the total volume Δ: Volume in which precipitates are present is less than 10% of the total volume 5% or more ×: Precipitates 10% or more of the total volume

(Evaluation method of cleaning power)
1 g of beef tallow was uniformly applied to a 10 cm × 15 cm tapper container (a plastic container having a bottom surface of 10 cm × 15 cm and a height of 5 cm, and one plane being open). After taking 38 g of water and 2 g of the detergent composition into a dishwashing sponge measuring 11.5 cm × 7.5 cm × 3 cm and squeezing it by hand several times, the contaminated tapper container is usually washed with tap water at 25 ° C. at home. Wash as done. After cleaning, the rinse was thoroughly rinsed with water at 25 ° C., and the cleaning power was evaluated based on the following criteria based on the touch when the contaminated surface of the tapper container was touched by hand.
Evaluation criteria: ○ to ◎ are acceptable. ◎: Touching any part of the tapper container gives a tingling sensation of friction and does not feel any sliminess due to residual oil.
○: Touching the bottom and side surfaces of the tapper container gives a feeling of friction, and no oiliness is felt due to residual oil, but a slight moisture remains at the corners.
Δ: When touching the bottom of the tapper container, there is a feeling of friction, and no residual oil is observed, but there is a stickiness on the sides and corners.
X: It can be seen that the whole tapper container is slippery and oil remains clearly.

Claims (4)

The following (A) component, (B) component, (C) component, (D) component and (E) component are contained, and (A) / (B) mass ratio is 4/3 to 8/1, And the mass ratio of [(A) + (B)] / (C) is 2/1 to 8/1,
The component (A) is a polyoxyethylene alkyl ether sulfate ester salt represented by the following general formula (1), and its content is 5 to 30% by mass.
^{_{R 1 O- (CH 2 CH 2}} O) n 1 -SO 3 M ··· (1)
(R ¹ is an alkyl group having 8 to 18 carbon atoms, n ₁ is the average number of moles added of ethylene oxide group, and is in the range of 1 to 6. M is a hydrogen atom, alkali metal, alkaline earth metal, alkanol. Amine or ammonium.)
(B) component is alkanesulfonic acid and / or its salt, the content is 1-10 mass%,
(C) component is an amine oxide type surfactant, the content is 1-10 mass%,
(D) component is cumene sulfonic acid or its salt, the content is 1-10 mass%,
(E) A component is a zinc compound and the content is 0.01-2 mass%. The component (A) is a branched alkyl group having 8 to 18 carbon atoms in which R ¹ in formula (1) has a branching ratio of 25% by mass or more. The liquid detergent composition for kitchen according to claim 1, which is a polyoxyethylene alkyl ether sulfate salt having a content of 40% by mass or more. The kitchen cleaner composition according to claim 1 or 2, wherein the component (A) is a polyoxyethylene alkyl ether sulfate salt having a narrow rate of 55% or more that can be defined by the following formula.
Narrow ratio = Y _max-2 + Y _max-1 + Y _max + Y _{max + 1} + Y _{max + 2}
(Here, Y _i indicating the ratio of the number of moles of ethylene oxide added is i, and the maximum value Y _i takes on the basis of the total amount of polyoxyethylene alkyl ether sulfate represented by formula (1)) was a Y _max, the value of the number of moles of ethylene oxide added when the Y _i takes the Y _max and n _max,
n is the value of Y _i when an (n _max -2) and Y _max-2,
The value of Y _i when n is (n _max −1) is Y _max−1 ,
The value of Y _i when n is (n _max +1) is Y _{max + 1} ,
The value of Y _i when n is (n _max +2) is Y _{max + 2} .
However, when n _max−2 , n _max−1 or n _max is zero, Y _max−2 , Y _max−1 or Y _max is not counted. ) The following (A) component, (B) component, (C) component, (D) component and (E) component are contained, and (A) / (B) mass ratio is 4/3 to 8/1, And the mass ratio of [(A) + (B)] / (C) is 2/1 to 8/1,
The component (A) is a polyoxyethylene alkyl ether sulfate salt represented by the following general formula (1):
^{_{R 1 O- (CH 2 CH 2}} O) n 1 -SO 3 M ··· (1)
(R ¹ is an alkyl group having 8 to 18 carbon atoms, n ₁ is the average number of moles added of ethylene oxide group, and is in the range of 1 to 6. M is a hydrogen atom, alkali metal, alkaline earth metal, alkanol. Amine or ammonium.)
(B) component is alkanesulfonic acid and / or its salt, the content is 1-10 mass%,
(C) component is an amine oxide type surfactant,
(D) component is cumene sulfonic acid or its salt, the content is 1-10 mass%,
(E) A component is a zinc compound, and the content is 0.003-0.45 mass% in conversion of a zinc ion concentration.