JP2020196810A - Liquid detergent composition - Google Patents

Abstract

To provide a liquid detergent composition having excellent detergency to oily stains and excellent foamability during cleaning.SOLUTION: There is provided a liquid detergent composition which comprises (a) 5 mass% or more and 20 mass% or less of an anionic surfactant, (b) 5 mass% or more and 20 mass% or less of an amphoteric surfactant, (c) 1 mass% or more and 20 mass% or less of a water-soluble solvent, (d) 0.1 mass% or more and 5 mass% or less of a polyalkylene oxide having a molecular weight of 500 or more and 2000 or less and containing 80 mol% or more of a propylene oxide unit in one molecule, and water, wherein the mass ratio (a)/(b) of the content of (a) to the content of (b) is 1 or more and 2 or less.SELECTED DRAWING: None

Description

The present invention relates to a liquid cleaning agent composition, for example, a liquid cleaning agent composition suitable for cleaning tableware, hard articles around the kitchen, and the like.

For cleaning tableware and cooking utensils, high detergency and detergency that can be easily cleaned and removed by scrubbing dirt such as liquid oil and solid oil that has a large cleaning load with a flexible article such as a sponge. Abundant foaming and foam sustainability are required. From this point of view, anionic surfactants and amphoteric surfactants may be used in combination in cleaning agents used in kitchens and kitchens.

Patent Document 1 discloses a liquid cleaning agent containing an amine oxide, a predetermined anionic surfactant, an oxycarboxylic acid, and water under predetermined conditions. In Patent Document 2, a solvent selected from the group consisting of a predetermined low molecular weight organic diamine, an anionic surfactant, an amphoteric surfactant, a predetermined diol, a predetermined polymerized glycol, and a mixture thereof is provided under predetermined conditions. The liquid dishwashing detergent composition contained in is disclosed. Patent Document 3 discloses a liquid cleaning agent composition containing a surfactant, an emulsion whitening agent, and a polyalkylene oxide of a polyhydric alcohol having an average molecular weight of 300 to 4000 in a predetermined range.

Japanese Unexamined Patent Publication No. 9-78091 Special Table 2002-536497 Japanese Unexamined Patent Publication No. 6-1709

Cleaning agents used for cleaning tableware and the like are required to have detergency against oil stains, and for this purpose, a plurality of surfactants are used in combination, for example, an anionic surfactant and an amphoteric surfactant are used in combination. Can be considered. However, when an aqueous detergent is prepared by using an anionic surfactant and an amphoteric surfactant in combination, the storage stability tends to decrease due to the formation of an ion complex between the surfactants, such as precipitation during storage. Is shown. For example, blending an organic solvent is effective for improving storage stability, but if an organic solvent is used in a composition combining an anionic surfactant and an amphoteric surfactant, foaming during cleaning is impaired. There was found.

The present invention provides a liquid cleaning agent composition having excellent detergency against oil stains and foaming property during cleaning.

The present inventors have a composition in which an anionic surfactant and an amphoteric surfactant are used in combination, the mass ratio of the two is within a predetermined range, and a polyalkylene oxide containing a water-soluble solvent and a propylene oxide unit is blended. As a result, it has been found that both the enhancement of the detergency against oil stains and the preferable foaming property at the time of cleaning can be achieved, and the present invention has been completed.

In the present invention, (a) anionic surfactant [hereinafter referred to as (a) component] is 5% by mass or more and 20% by mass or less, and (b) amphoteric surfactant [hereinafter referred to as (b) component] is 5% by mass or more. 20% by mass or less, (c) water-soluble solvent [hereinafter referred to as (c) component] is 1% by mass or more and 20% by mass or less, and (d) propylene oxide unit is contained in the molecule in an amount of 80 mol% or more and the molecular weight is 500 or more and 2000 or less. It is a mass ratio of the content of the component (a) to the content of the component (b), which contains 0.1% by mass or more and 5% by mass or less of polyalkylene oxide [hereinafter referred to as the component (d)] and water. The present invention relates to a liquid cleaning agent composition in which (a) / (b) is 1 or more and 2 or less.

According to the present invention, there is provided a liquid cleaning agent composition having excellent detergency against oil stains and foaming property during cleaning.

<Liquid cleaning agent composition>
Examples of the anionic surfactant of the component (a) include an alkylaryl sulfonic acid type surfactant, a sulfate ester type surfactant, an alkane sulfonic acid type surfactant, an olefin sulfonic acid type surfactant, and a sulfosuccinic acid alkyl ester type. One or more anionic surfactants selected from the surfactant and the sulfo fatty acid ester type surfactant are preferable.

Examples of the alkylaryl sulfonic acid type surfactant include alkylbenzene sulfonates. Specific examples thereof include alkylbenzene sulfonates having an alkyl group having 6 or more carbon atoms, preferably 8 or more carbon atoms, and 18 or less, preferably 15 or less carbon atoms.

Examples of the sulfate ester-type surfactant include an anionic surfactant having a hydrocarbon group having 8 or more carbon atoms and 20 or less carbon atoms and a sulfate ester group. From the viewpoint of detergency, the hydrocarbon group has 8 or more carbon atoms, preferably 10 or more, more preferably 12 or more, and 20 or less, preferably 18 or less, more preferably 14 or less, still more preferably 12 or less. is there. The hydrocarbon group is preferably an alkyl group.
Examples of the sulfate ester type surfactant include an alkyl sulfate ester salt and a polyoxyalkylene alkyl ether sulfate ester salt.
The alkyl sulfate ester salt has an alkyl group having 8 or more carbon atoms, preferably 10 or more carbon atoms, and 20 or less, preferably 18 or less, more preferably 14 or less, still more preferably 12 or less, and further having a linear or branched chain. Alkyl sulfates having an alkyl group are suitable.

The polyoxyalkylene alkyl ether sulfate ester salt has an alkyl group having 8 or more carbon atoms, preferably 10 or more carbon atoms, and 20 or less, preferably 18 or less, more preferably 14 or less, still more preferably 12 or less, and further linearly or linearly. The average number of moles of an oxyalkylene group having an alkyl group of a branched chain and having 2 or more and 3 or less carbon atoms is preferably 0.1 or more, more preferably 0.3 or more, still more preferably 0.4 or more, and A polyoxyalkylene alkyl ether sulfate ester salt, preferably 6 or less, more preferably 3 or less, still more preferably 1.5 or less, is preferable. The oxyalkylene group preferably has 2 carbon atoms.

Examples of the alkane sulfonic acid type surfactant include alkane sulfonates having an alkane moiety having 8 or more carbon atoms, preferably 10 or more, more preferably 14 or more, and 20 or less, preferably 18 or less.

Examples of the olefin sulfonic acid type surfactant include α-olefin sulfonate and internal olefin sulfonate. The α-olefin sulfonate has an olefin moiety having 8 or more carbon atoms, preferably 10 or more, more preferably 14 or more, and 22 or less, preferably 20 or less, more preferably 18 or less. The internal olefin sulfonate has 8 or more carbon atoms, preferably 12 or more, more preferably 16 or more, and 24 or less, preferably 20 or less, more preferably 18 or less.

As the sulfosuccinic acid alkyl ester type surfactant, a monopoly of a fatty alcohol having 5 or more carbon atoms, preferably 6 or more, more preferably 7 or more, and 18 or less, preferably 14 or less, more preferably 10 or less, and sulfosuccinic acid. Esters and / or diesters, preferably diesters. Further, as the fatty alcohol, branched alcohol is suitable from the viewpoint of detergency.

As the sulfo fatty acid ester type surfactant, an α-sulfo fatty acid salt having a fatty acid portion having 10 or more and 18 or less carbon atoms, a fatty acid portion having 10 or more and 18 or less carbon atoms, and an ester portion having 1 or more and 5 or less carbon atoms. The α-sulfofatty acid lower alkyl ester salt (lower alkyl is preferably 1 or more and 3 or less carbon atoms).

As the component (a), a polyoxyalkylene alkyl ether sulfate ester salt having an alkyl group having 8 or more and 18 or less carbon atoms, an alkyl sulfate ester salt having an alkyl group having 8 or more and 18 carbon atoms or less, and an alkyl group having 5 or more and 18 or less carbon atoms. One or more anionic surfactants selected from mono or diester salts of fatty alcohols and sulfosuccinic acids are preferred.

The liquid cleaning agent composition of the present invention contains the component (a) in an amount of 5% by mass or more, preferably 7% by mass or more, more preferably 9% by mass or more, and from the viewpoint of foaming property and foam sustainability during cleaning. , 20% by mass or less, preferably 18% by mass or less, more preferably 15% by mass or less.

Examples of the amphoteric surfactant of the component (b) include one or more amphoteric surfactants selected from amine oxide-type surfactants and betaine-type surfactants. Further, examples thereof include an amine oxide type surfactant having one hydrocarbon group having 8 or more and 18 or less carbon atoms, and one or more amphoteric surfactants selected from sulfobetaine type amphoteric surfactants. More specifically, as the component (b), one or more kinds of surfactants selected from a tertiary amine oxide type surfactant, a sulfobetaine type surfactant and a carbobetaine type surfactant can be mentioned.

As the tertiary amine oxide type surfactant, one of the groups bonded to the nitrogen atom may be separated by an amide group or an ester group. An alkyl group having 8 or more and 18 or less carbon atoms, preferably 8 or more and 16 carbon atoms. Examples thereof include the following alkyl groups, more preferably alkyl groups having 8 or more and 14 or less carbon atoms, and the rest being alkyl groups having 1 or more and 3 or less carbon atoms, preferably methyl groups, which are tertiary amine oxide-type surfactants.

The sulfobetaine-type surfactant includes one alkyl group having 10 or more carbon atoms and 18 or less, preferably 16 or less, more preferably 14 or less, and an alkyl group having 1 or more and 3 or less carbon atoms, preferably a methyl group. And a compound having a 3-sulfopropyl group or a 2-hydroxy-3-sulfopropyl group are suitable.

Further, the carbobetaine type surfactant includes one alkyl group having 10 or more carbon atoms which may be partitioned by an amide group or an ester group, and 18 or less, preferably 16 or less, more preferably 14 or less. A carbobetaine-type surfactant having an alkyl group having 1 or more and 3 or less carbon atoms, preferably two methyl groups, and one carboxyalkyl group, preferably one carboxymethyl group is preferable.

As the component (b), a betaine-type surfactant is preferable from the viewpoint of enhancing detergency, and one or more kinds of surfactants selected from a sulfobetaine-type surfactant and a carbobetaine-type surfactant are more preferable, and sulfo. Betaine-type amphoteric surfactants are more preferred.

From the viewpoint of enhancing the detergency, the liquid cleaning agent composition of the present invention contains the component (b) in an amount of 5% by mass or more, preferably 7% by mass or more, more preferably 9% by mass or more, and 20% by mass or less. It is preferably contained in an amount of 18% by mass or less, more preferably 15% by mass or less.

In the liquid cleaning agent composition of the present invention, from the viewpoint of detergency and storage stability, (a) / (b), which is the mass ratio of the content of the component (a) to the content of the component (b), is 1 Above, preferably 1.0 or more, more preferably 1.1 or more, still more preferably 1.2 or more, and 2 or less, preferably 2.0 or less, more preferably 1.8 or less, still more preferably 1. It is 6 or less.

The component (c) is a water-soluble solvent. Regarding the solvent of the component (c), water-soluble means that 5 g or more is dissolved in 100 g of water at 25 ° C. The component (c) is preferably a water-soluble solvent having a molecular weight of less than 500.

As the component (c), a water-soluble organic solvent having 2 or more carbon atoms, further 3 or more carbon atoms, and 10 or less carbon atoms and 8 or less carbon atoms is preferable. Further, as the component (c), a water-soluble organic solvent selected from monohydric alcohols, polyhydric alcohols (glycols and the like), and glycol ethers is preferable.

As the component (c), from the viewpoint of detergency and storage stability, LogPow is preferably -3.0 or more, more preferably -2.0 or more, still more preferably -1.5 or more, and the same. From the viewpoint, a water-soluble organic solvent of preferably 1.5 or less, more preferably 1.0 or less can be mentioned.

In the present invention, the logPow value is a coefficient indicating the affinity of the organic compound for water and 1-octanol. The 1-octanol / water partition coefficient P is the distribution equilibrium when a trace amount of the compound is dissolved as a solute in the solvent of the two-component phase of 1-octanol and water, and is the ratio of the equilibrium concentration of the compound in each solvent. It is common to show them in the form of their log power to the base 10. The logPow values of many compounds have been reported, and many values are listed in databases available from Daylight Chemical Information Systems, Inc. (Daylight CIS), etc., which can be referred to. If there is no actually measured logPow value, it can be calculated by the program "CLOGP" etc. available from Daylight CIS. This program outputs the value of "calculated logPow (LogPow)" calculated by Hansch, Leo's fragment approach together with the measured logPower value, if any.

The fragment approach is based on the chemical structure of the compound and takes into account the number of atoms and the type of chemical bond (cf. A. Leo, Comprehensive Medicinal Chemistry, Vol.4, C. Hansch, PGSammens, JB Taylor and CA Ramsden, Eds., P.295, Pergamon Press, 1990). This ClogPow value can be used in place of the actually measured logPow value when selecting a compound. In the present invention, if there is an actually measured value of logPow, it is used, and if not, the CLOGPow value calculated by the program CLOGP v4.01 is used.

The components (c) include (c-1) a monohydric alcohol having 1 or more and 3 or less carbon atoms, (c-2) a polyhydric alcohol having 2 or more and 4 or less carbon atoms, and (c-3) a carbon number of alkylene glycol units. Di or trialkylene glycol of 2 to 4, (c-4) monoalkyl (methyl, ethyl, propyl or butyl) of mono, di, tri or tetraalkylene glycol having 2 to 4 carbon atoms in the alkylene glycol unit. Monophenyl or monobenzyl ether can be mentioned.

Specifically, (c-1) is ethanol and isopropyl alcohol, (c-2) is isoprene glycol and propylene glycol, and (c-4) is propylene glycol monoethyl ether and diethylene glycol monobutyl ether (butyl diglycol and the like). (Also also referred to as), dipropylene glycol monobutyl ether, triethylene glycol monobutyl ether (also referred to as butyltriglycol, etc.), phenoxyethanol, phenoxytriethylene glycol, phenoxyisopropanol. As the component (c), an organic solvent selected from ethanol, propylene glycol, dipropylene glycol monobutyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, phenoxyethanol, and phenoxyisopropanol is preferable.

From the viewpoint of further enhancing the cleaning action of liquid oil stains derived from foods and the like, the component (c) preferably has an alkoxy group, and more preferably contains one or more selected from the above (c-4). c) It is more preferable to contain at least one selected from diethylene glycol monobutyl ether, triethylene glycol monobutyl ether and dipropylene glycol monobutyl ether as the component, and it is more preferable to contain diethylene glycol monobutyl ether.

From the viewpoint of storage stability, the liquid cleaning agent composition of the present invention contains the component (c) in an amount of 1% by mass or more, preferably 1.5% by mass or more, more preferably 2% by mass or more, and is generated during cleaning. From the viewpoint of foamability, it is contained in an amount of 20% by mass or less, preferably 15% by mass or less, and more preferably 10% by mass or less.

The liquid cleaning agent composition of the present invention has the total content of (a) component, (b) component content, and (c) component content from the viewpoint of foaming property and storage stability during cleaning. The mass ratio of [(a) + (b)] / (c) is preferably 1 or more, more preferably 2 or more, further preferably 3 or more, and preferably 10 or less, more preferably 8 or less. More preferably, it is 7 or less.

The component (d) is a polyalkylene oxide having a molecular weight of 500 or more and 2000 or less, which contains 80 mol% or more of propylene oxide units in the molecule.

The component (d) contains a propylene oxide unit in the molecule, preferably 85 mol% or more, more preferably 90 mol% or more, still more preferably 95 mol% or more.

The molecular weight of the component (d) is preferably 700 or more, more preferably 1000 or more, and preferably 1800 or less, more preferably 1500 or less, from the viewpoint of foaming property during washing. The molecular weight of the component (d) is the weight average molecular weight determined by gel permeation chromatography when polyethylene glycol is used as a standard. Further, the content of propylene oxide units in the polyalkylene oxide can be determined by NMR (nuclear magnetic resonance spectrum).

The component (d) is preferably polypropylene oxide having a molecular weight of 500 or more and 2000 or less.

The liquid cleaning agent composition of the present invention contains the component (d) in an amount of 0.1% by mass or more, preferably 0.3% by mass or more, more preferably 0.5% by mass, from the viewpoint of foaming property and viscosity during cleaning. % Or more, and 5% by mass or less, preferably 4% by mass or less, more preferably 3% by mass or less.

The liquid cleaning agent composition of the present invention has a mass of (a) component content, (b) total component content, and (d) component content from the viewpoint of foaming property and viscosity during cleaning. The ratio [(a) + (b)] / (d) is preferably 3 or more, more preferably 4 or more, still more preferably 5 or more, and preferably 170 or less, more preferably 100 or less, still more preferable. Is 50 or less.

In the present invention, by setting the mass ratio of the component (a) and the component (b) to 2 or less, mixed micelles are formed and the micelles become hydrophobic, so that high detergency can be imparted to oil stains. On the other hand, regarding the foaming property, the foam is stabilized by arranging the surfactant on the foam film, but the stability of the foam film is also impaired by canceling the ionicity of the component (a) and the component (b). Therefore, the foaming property when diluted is impaired. That is, it is difficult to achieve both detergency and foaming power. In the present invention, the component (c) having a specific molecular weight acts on the hydrophobized mixed micelles of the component (a) and the component (b) to improve the membrane strength of the foam film whose ionicity is weakened, thereby cleaning. It is considered that foaming is improved without impairing the force.

The liquid cleaning agent composition of the present invention may contain a surfactant other than the components (a) and (b) as the component (e). Examples of the component (e) include nonionic surfactants. Examples of the nonionic surfactant include one or more nonionic surfactants selected from alkyl ether type nonionic surfactants and alkyl glyceryl ether type surfactants. As the nonionic surfactant, one or more nonionic surfactants selected from alkyl glyceryl ether type surfactants are preferable. Examples of the alkyl glyceryl ether type surfactant include an alkyl glyceryl ether type surfactant having one alkyl group having 8 or more and 18 or less carbon atoms, preferably 8 or more and 14 or less carbon atoms, and more preferably 8 or more and 12 or less carbon atoms. Can be mentioned. The alkyl group is preferably a branched chain alkyl group having 8 or more and 12 or less carbon atoms. When the liquid cleaning agent composition of the present invention contains the component (e), the composition contains the component (e), preferably 0.5% by mass or more, more preferably 1% by mass or more, and further preferably 1. It contains 5% by mass or more, preferably 10% by mass or less, more preferably 8% by mass or less, and further preferably 6% by mass or less.

The liquid cleaning agent composition of the present invention preferably contains one or more solubilizers selected from cumene sulfonic acid, p-toluene sulfonic acid, and m-xylene sulfonic acid as the component (f). When the liquid cleaning agent composition of the present invention contains the component (f), the composition contains the component (f), preferably 0.01% by mass or more, more preferably 0.5% by mass or more, still more preferably. It is contained in an amount of 1.0% by mass or more, preferably 20% by mass or less, more preferably 18% by mass or less, still more preferably 15% by mass or less.

In addition to the components (a), (b), (c), (d), and any of the components (e) and (f), the liquid cleaning composition of the present invention contains an antigelling agent. Ingredients such as thickeners such as polyacrylic acid, hydroxycarboxylic acids, net polycarboxylic acids and one or more metal sequestering agents selected from these salts, fragrances, dyes, pigments, bactericides, preservatives, pH adjusters, etc. Can be contained within a range that does not impair the effects of the present invention.

The liquid cleaning agent composition of the present invention contains water. That is, the balance other than the components (a) to (d) and the optional components is water. From the viewpoint of adjusting the viscosity of the liquid cleaning agent composition of the present invention to a suitable viscosity and sufficiently exerting the effects of the present invention, water is preferably 30% by mass or more, more preferably 50% by mass or more, and preferably 50% by mass or more. Is contained in an amount of 85% by mass or less, more preferably 80% by mass or less, still more preferably 75% by mass or less. As the water, ion-exchanged water, sterilized ion-exchanged water, distilled water, or hypochlorous acid-sterilized water in which about 0.5 to 10 ppm of hypochlorous acid is dissolved can be used. The liquid cleaning agent composition of the present invention may be in the form of a liquid composition in which the above components are dissolved and / or dispersed and / or emulsified in water. For example, the liquid cleaning agent composition of the present invention may be in the form of an aqueous solution.

The pH of the liquid cleaning agent composition of the present invention at 25 ° C. is preferably 4 or more, more preferably 5 or more, and preferably 9 or less, more preferably 8 or less. Adjustment to such pH is performed by inorganic acids selected from sulfuric acid, hydrochloric acid, and phosphoric acid, citric acid, apple acid, maleic acid, fumaric acid, organic acids selected from succinic acid, sodium hydroxide, potassium hydroxide, and water. It is carried out using an inorganic alkaline agent such as magnesium oxide, sodium carbonate and potassium carbonate. In the present invention, it is preferable to give the composition a buffering ability from the viewpoint of foaming property / foam persistence, and it is preferable to use the above organic acid, preferably citric acid, in combination with an inorganic alkaline agent. The organic acid may be added to the composition in the form of a sodium salt or a potassium salt.

The viscosity of the liquid cleaning agent composition of the present invention and the liquid cleaning agent composition for tableware at 20 ° C. is preferably 5 mPa · s or more, more preferably 10 mPa · s or more, and preferably 500 mPa · s or less, more preferably. Is 300 mPa · s or less. The viscosity can be adjusted with, for example, the component (f).

The liquid cleaning composition of the present invention is preferably for hard articles, more preferably for tableware and / or hard articles around kitchens. More preferably, it is for tableware.

Hard articles around the kitchen are articles used around the kitchen, specifically,
(1) Storage place for food such as refrigerators and cupboards, tableware, and cooking utensils,
(2) a cooking place for food such as a drainage ditch, a counter, a range hood, a sink, a gas range, and a microwave oven, and (3) a floor or a wall around the storage place or the cooking place. In the present invention, these are referred to as "hard articles around the kitchen" for convenience.
In addition, as tableware, specifically
(I) So-called tableware such as plates and bowls,
(Ii) Storage containers for tappers, bottles, etc.
(Iii) Cooking utensils such as kitchen knives, cutting boards, pots, frying pans, grilled fish, etc.
(Iv) Examples include members and utensils that come into contact with foodstuffs such as cooking appliances such as food processors and mixers. In the present invention, these are referred to as "tableware" for convenience.
Further, the present invention preferably targets items selected from tableware, storage containers, cooking utensils, and cooking appliances, and further includes plates, bowls, tappers, bottles, kitchenettes, cutting boards, pots, frying pans, grilled fish, It is more preferable to target an article selected from a food processor and a mixer.

Examples of the material of the hard article targeted by the present invention include plastic (including silicone resin and the like), metal, pottery, wood, and combinations thereof. Then, the liquid cleaning agent composition of the present invention can effectively clean stains containing liquid oil adhering to these hard articles.

As described above, liquid oil adhering to a hydrophobic material such as plastic is a stain that is difficult to remove, but the present invention also exhibits an excellent cleaning effect on liquid oil adhering to a hard plastic article. The present invention is also suitable for a method for cleaning a hard plastic article. Examples of the plastic include polyolefins such as polypropylene and polyethylene, polymethacrylate, polycarbonate, ABS resin, polyethylene terephthalate and the like.

As described above, the liquid cleaning agent composition of the present invention is suitably used for washing dishes and further washing dishes by hand. The cleaning liquid used for hand-washing is obtained by using the liquid cleaning agent composition of the present invention, and a stock solution of the composition or a diluted solution containing water is used. As a specific hand-washing method, for example, the composition of the present invention is attached to a flexible material such as a sponge containing water to hold the washing liquid, and the dishes are scrubbed by whipping while rubbing several times by hand. To do. The total concentration of the component (a), the component (b), the component (c) and the component (d) in the cleaning liquid held by the flexible material is, for example, 1, from the viewpoint of high foaming property and foam persistence. It may be 000 ppm or more, further 2,000 ppm or more, and 30,000 ppm or less, further 20,000 ppm or less, and further 10,000 ppm or less. Normally, after washing is completed, water is added for rinsing. For example, in the present invention, the bubbles disappear sufficiently with 3.3 to 133 parts by mass of rinsing water with respect to 1 part by mass of the composition used, and the rinsing is performed quickly. Can be completed. The amount of this rinse water is about 2/3 to 1/10 when the conventional hand-washing cleaning agent composition is used.

The liquid cleaning agent composition shown in Table 1 was prepared using the following compounding ingredients, and the detergency and foaming power were evaluated by the following methods. The results are shown in Table 1.
Moreover, the liquid cleaning agent composition of the compounding example of Table 2 was prepared using the following compounding components.
The ingredients in the table are as follows.

<Ingredients>
[(A) component]
-A-1: Sodium di-2-ethylhexyl sulfosuccinate, product name "Airroll CT-1L", manufactured by Toho Kagaku Kogyo Co., Ltd.-a-2: propylene oxide in 1 mol of natural alcohol having 12 carbon atoms in the alkyl chain. Was added in an amount of 0.6 mol, sulfated with sulfur trioxide, and neutralized with sodium hydroxide (diluted with water by 10% and neutralized until the pH reached 11.).

[(B) component]
・ B-1: ・ Lauryldimethylhydroxysulfobetaine, product name “Ancitor 20HD”, manufactured by Kao Corporation ・ b-2: Lauryldimethylamine oxide, product name “Ancitor 20N”, manufactured by Kao Corporation

[Component (c)]
-C-1: Diethylene glycol monobutyl ether (logPow 0.66), manufactured by Nippon Emulsifier Co., Ltd.-c-2; ethanol (logPow 0.07)
C-3: Propylene glycol (logPower-1.4)

[(D) component]
-PPG1000: Polypropylene oxide having a weight average molecular weight of 1000-PPG2000: Polypropylene oxide having a weight average molecular weight of 2000

[(D') component (comparative component of (d) component)]
-PPG400: Polypropylene oxide having a weight average molecular weight of 400-PPG3000: Polypropylene oxide having a weight average molecular weight of 3000-PEG1000: Polypropylene oxide having a weight average molecular weight of 1000-PEG2000: Polypropylene oxide having a weight average molecular weight of 2000

[(E) component]
-E-1: 2-Ethylhexyl monoglyceryl ether, manufactured by Kao Corporation [(f) component]
・ F-1: Paratoluenesulfonic acid, manufactured by Meitomo Sangyo Co., Ltd.

<Evaluation method>
(1) Evaluation of Detergency The mass of a polypropylene test piece having a size of 30 mm (horizontal) x 80 mm (length) x 1 mm (thickness) was measured with a 4-digit balance (x). A mixture of beef tallow (Sigma-Aldrich Japan Co., Ltd.) and rapeseed oil (Kishida Chemical Co., Ltd.) on both sides of the polypropylene test piece at a mass ratio of 9: 1 is 0.02 in total from the lower end to a height of 50 mm. A material which was uniformly applied so as to be ~ 0.04 g was prepared and used as a dirty piece. The mass of the dirty piece was measured with a 4-digit balance (y). 50 g of a 30-fold diluted solution of each cleaning agent composition with water is placed in a 50 mL container (a columnar shape having an inner diameter of 35 mm and a height of 68 mm), and then one dirty piece is leaned against the container to form a 30-fold diluted solution of the composition. Was brought into contact with. At this time, all the parts of the dirt piece to which the dirt was attached were immersed in the diluted solution in the container. After immersing the dirty piece in the diluted solution in the container for 1 minute, the dirty piece was taken out and rinsed with tap water for 1 minute. At this time, the conditions for rinsing with running water were that the temperature of tap water was 25 ° C., the flow velocity was about 4 L / min, and the diameter of the opening of the faucet was about 15 mm. Hold the dirt piece at 45 ° to tap water falling on the dirt piece located 5 cm vertically below the opening, and keep the angle fixed at the upper end where the dirt piece is not attached. After receiving running water, the entire surface of the washed part was rinsed with tap water flowing over the dirty piece. At this time, the front and back were changed every 10 seconds and rinsed alternately.
After rinsing, the dirty pieces were dried and then the mass was measured with a 4-digit balance (z). The cleaning rate was calculated by the following formula. It is preferable that the value of the cleaning rate is large.
Cleaning rate (%) = {(y)-(z)} / {(y)-(x)} x 100

(2) Evaluation of foaming power 10 g of an aqueous solution obtained by diluting the composition 30 times in a colorimetric tube (cylindrical diameter 25 mm × height 250 mm), beef tallow (Sigma-Aldrich Japan Co., Ltd.) and rapeseed oil (Kishida Chemical Co., Ltd.) 0.5 g of the mixture was added at a mass ratio of 1: 1 and the lid was closed. Shake up and down 20 times so as to hit the contents on the top and bottom surfaces inside the colorimetric tube in order to foam while mixing with the aqueous solution inside the colorimetric tube and the oil and fat mixture, and read the height of the foam after shaking. , I asked for the foaming power.

Claims (7)

(A) Anionic surfactant [hereinafter referred to as component (a)] is 5% by mass or more and 20% by mass or less, and (b) amphoteric surfactant [hereinafter referred to as component (b)] is 5% by mass or more and 20% by mass or less. , (C) Water-soluble solvent [hereinafter referred to as (c) component] is 1% by mass or more and 20% by mass or less, and (d) Polyalkylene oxide having a molecular weight of 500 or more and 2000 or less containing 80 mol% or more of propylene oxide units in the molecule [ Hereinafter referred to as (d) component] is 0.1% by mass or more and 5% by mass or less, and contains water, and is the mass ratio of the content of the component (a) to the content of the component (b) (a) /. A liquid cleaning agent composition in which (b) is 1 or more and 2 or less. The component (a) is a polyoxyalkylene alkyl ether sulfate ester salt having an alkyl group having 8 or more and 18 or less carbon atoms, an alkyl sulfate ester salt having an alkyl group having 8 or more and 18 carbon atoms or less, and an alkyl group having 5 or more and 18 or less carbon atoms. The liquid cleaning composition according to claim 1, which is one or more selected from a mono- or diester salt of a fatty alcohol and sulfosuccinic acid. The first or second claim, wherein the component (b) is one or more selected from an amine oxide type surfactant having one hydrocarbon group having 8 or more and 18 or less carbon atoms and a sulfobetaine type amphoteric surfactant. Liquid detergent composition. The liquid cleaning composition according to any one of claims 1 to 3, wherein the component (c) is a glycol ether solvent. [(A) + (b)] / (c), which is the mass ratio of the content of the component (a), the total content of the component (b), and the content of the component (c), is 1 or more and 10 or less. The liquid cleaning agent composition according to any one of claims 1 to 4. The liquid cleaning agent composition according to any one of claims 1 to 5, which is used for hard articles. The liquid cleaning composition according to any one of claims 1 to 6, which is used for hard articles around tableware and / or kitchen.