JP2014132062A - Liquid detergent composition for hard surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid detergent composition for a hard surface having excellent detergency against microorganisms-derived pink stains generated on a hard surface, excellent detergency against sebum stains deposited on the hard surface, and excellent compounding stability.SOLUTION: A liquid detergent composition for a hard surface contains (a) anion surfactant, (b) quaternary ammonium salt-type cation ion surfactant, (c) benzyl alcohol, (d) butoxyethoxy ethanol and water, and the mass ratio (a)/(b) is 0.1 or more and 10 or less, the mass ratio (d)/(c) is 3 or more and 10 or less, and the mass ratio [(c)+(d)]/[(a)+(b)] is 1 or more and 10 or less.

Description

  The present invention relates to a hard surface liquid cleaning composition and a hard surface cleaning method.

  In general, an anionic surfactant is used for a hard surface cleaner such as a bathroom cleaner composition in order to impart cleaning power to soap residue and sebum stain.

  On the other hand, the environment around the water such as the bathroom is high in humidity, and the presence of soap residue and sebum stains promotes the growth of microorganisms such as bacteria, and stains derived from bacteria such as pink stains and mold stains occur. Cheap. Since these stains are very difficult to remove, for example, bleaching and sterilization removal is performed using a strong oxidizing agent such as hypochlorous acid. Hypochlorous acid is useful because it has excellent immediate effects and can effectively remove bacteria-derived stains by cleaning in a short period of time. However, there is concern about the generation of chlorine, etc., and its unique smell is strong and easy to use. It is difficult. For this reason, in general, in order to avoid the occurrence of dirt derived from these bacteria as much as possible, it is possible to carry out frequent cleaning or daily cleaning.

  One of the conspicuous stains in a living environment such as a water environment is pink stains typified by deposits exhibiting a reddish color such as red or pink. Pink stains are particularly prominent at sites such as drains, packings, faucets, bathroom floors, and the bottoms of containers such as washbasins and shampoo bottles. Pink stains are also a nuisance stain for the cleaner because they are regenerated immediately after cleaning. Pink stains are not only difficult to remove, but also have a slimy feeling in addition to the unusual appearance. Development of a method for effectively removing pink stains and keeping the water around clean is desired.

  In order to effectively clean the microorganism-derived soil, it is conceivable to add a quaternary ammonium type cationic surfactant to the cleaning agent or treatment agent for the purpose of imparting a bactericidal effect. Patent Document 1 describes a technique in which a specific solvent and a cationic surfactant are used in combination as an antibacterial agent effective for pink stains derived from bathroom microorganisms. Further, Patent Document 2 discloses a technique for a carpet mite control detergent containing benzyl alcohol, a glycol solvent, and a cationic surfactant, and it is described that the technique of the publication has a bactericidal effect. Has been. Furthermore, Patent Literature 3 and Patent Literature 4 disclose a technique of a hard surface cleaning composition containing benzyl alcohol, a glycol solvent, and a cationic surfactant.

JP 2012-36179 A Japanese National Patent Publication No. 3-501271 JP 2004-059806 A JP 2006-008801 A

  Various stains such as soap dust stains and sebum stains that promote microorganism-derived stains adhere to hard surfaces in a domestic environment such as a bathroom. It is also desirable to remove dirt effectively in as short a time as possible. In Patent Documents 1 to 4, a higher level of performance has been desired in terms of effectively removing microorganism-derived dirt in a shorter time. In response to the above demand, for example, from the viewpoint of improving detergency, it is conceivable to use an anionic surfactant as a surfactant to be blended in the detergent. When an anionic surfactant is used in combination with a system containing a salt cation surfactant, a complex of both is formed, so that the effect of the quaternary ammonium type cationic surfactant is significantly impaired, and a satisfactory effect Is not expected.

  The present invention provides a liquid detergent composition for hard surfaces that is excellent in detergency against microorganism-derived pink stains generated on a hard surface and has good blending stability.

The present invention includes (a) an anionic surfactant (hereinafter referred to as component (a)), (b) a quaternary ammonium salt type cationic surfactant (hereinafter referred to as component (b)), (c) benzyl. Alcohol (hereinafter referred to as component (c)), (d) butoxyethoxyethanol (hereinafter referred to as component (d)) and water,
The mass ratio of (a) component / (b) component is 0.1 or more and 10 or less,
The mass ratio of (d) component / (c) component is 3 or more and 10 or less,
The mass ratio of [(c) component + (d) component] / [(a) component + (b) component] is 1 or more and 10 or less.
The present invention relates to a liquid detergent composition for hard surfaces.

The liquid detergent composition for hard surfaces of the present invention includes (a) an anionic surfactant (hereinafter referred to as component (a)), (b) a quaternary ammonium salt type cationic surfactant [hereinafter referred to as ( b) component], (c) benzyl alcohol (hereinafter referred to as component (c)), (d) butoxyethoxyethanol (hereinafter referred to as component (d)) and water,
The mass ratio of (a) component / (b) component is 1 or more and 10 or less,
The mass ratio of (d) component / (c) component is 3 or more and 10 or less,
The mass ratio of [(c) component + (d) component] / [(a) component + (b) component] is 1 or more and 5 or less.
A liquid detergent composition for hard surfaces is mentioned.

  Moreover, this invention relates to the cleaning method of the hard surface which makes the liquid detergent composition for hard surfaces of the said invention contact the pink stain derived from the microorganisms which arose on the hard surface.

  According to the present invention, there is provided a liquid detergent composition for a hard surface that has excellent sterilizing power and cleaning power against pink stains generated around water in a bathroom or the like, and has excellent cleaning power of sebum stains and good blending stability. Provided.

  As used herein, “pink stain” refers to a stain derived from a microorganism that exhibits even a reddish color. Here, the reddish color includes red, pink, or an intermediate color thereof. For example, a color having a maximum absorption wavelength in the vicinity of 490 nm may be used (“slime generated in a living environment such as a bathroom”: antibacterial and microscopic vol.24, No.11, p.723-728, 1996).

  In the present invention, the target microbial stain is recognized even in a minute remaining state because it is accompanied by a pink pigment, and it has been difficult for the prior art to completely remove the stain to the recognition range or less. According to the present invention, microorganism-derived pink stains generated on such a hard surface can be removed in a short time. In addition, it has excellent detergency such as sebum dirt adhering to the hard surface, and also has good blending stability.

  In addition, the hard surface liquid detergent composition of the present invention exhibits excellent detergency even without using a strong oxidizing agent or alkaline agent such as hypochlorite. Can be used for parts and tiles.

<(A) component>
The component (a) is an anionic surfactant. Examples of the anionic surfactant include an anionic surfactant having one or more hydrocarbon groups and one or more groups selected from the group consisting of sulfonic acid groups, sulfate ester groups, and carboxylic acid groups. .

  Examples of the anionic surfactant include alkyl or alkenyl benzene sulfonic acid or a salt thereof, polyoxyalkylene alkyl or alkenyl ether sulfate or a salt thereof, alkyl or alkenyl sulfate or a salt thereof, and a fatty acid or a salt thereof. From the viewpoint of detergency, foamability, and rinsing properties, the anionic surfactant is preferably at least one selected from the group consisting of polyoxyalkylene alkyl or alkenyl ether sulfates or salts thereof and fatty acids or salts thereof. . The oxyalkylene group of the polyoxyalkylene alkyl or alkenyl ether sulfate or a salt thereof is preferably an oxyethylene group. Moreover, the average addition mole number of the oxyalkylene group of polyoxyalkylene alkyl or alkenyl ether sulfate ester salt is preferably 1 or more and 10 or less. Examples of fatty acids or salts thereof include fatty acids having 10 to 18 carbon atoms and salts thereof. The alkyl group or alkenyl group of the anionic surfactant preferably has 10 to 18 carbon atoms. The salt is preferably an alkali metal salt such as sodium salt or potassium salt.

<(B) component>
The component (b) is a quaternary ammonium salt type cationic surfactant. As the quaternary ammonium salt type cationic surfactant, one or two of the groups bonded to the nitrogen atom is a hydrocarbon group having 8 to 16 carbon atoms, and the remainder is 1 to 3 carbon atoms. Examples thereof include quaternary ammonium salt type cationic surfactants, which are groups selected from the group consisting of the following alkyl groups, hydroxyalkyl groups having 1 to 3 carbon atoms, and arylalkyl groups (such as benzyl groups). Among these, a quaternary ammonium salt type cationic surfactant having a bactericidal performance is preferable, and a quaternary ammonium salt type cationic surfactant having a benzyl group is preferable from the viewpoint of bactericidal performance.

  As the component (b), a quaternary ammonium salt type cationic surfactant represented by the following general formula (1) is preferable.

[Wherein R ¹ represents a hydrocarbon group having 6 to 18 carbon atoms. R ² and R ³ each independently represents an alkyl group having 1 to 3 carbon atoms. R ⁴ represents an alkylene group having 1 to 3 carbon atoms. Z ⁻ represents an anionic group. ]

Quaternary ammonium salt type cationic surfactant represented by the general formula (1) may, detergency improving the foaming point, the general formula (1), R ¹ 6 or more carbon atoms, not more than 18 carbon It is a hydrogen group. R ¹ preferably has 8 or more carbon atoms, 14 or less, and more preferably 10 or less. R ¹ is preferably an alkyl group. Further, from the viewpoint of improving detergency and low irritation, in general formula (1), R ² and R ³ are alkyl groups having 1 to 3 carbon atoms, and alkyl groups having 1 to 2 carbon atoms. And a methyl group is more preferable. Further, from the viewpoint of improving detergency and low irritation, in general formula (1), R ⁴ is an alkylene group having 1 to 3 carbon atoms, preferably an alkylene group having 1 to 2 carbon atoms, methylene Groups are more preferred. Moreover, as Z < ^- > in General formula (1), halogen ions, such as a chlorine ion, are preferable from the point of a detergency improvement. Z ⁻ is more preferably a chlorine ion.

<(C) component>
The component (c) is benzyl alcohol.

<(D) component>
The component (d) is butoxyethoxyethanol. Butoxyethoxyethanol is sometimes referred to as diethylene glycol monobutyl ether or butyl carbitol.

<Liquid detergent composition for hard surface>
In the liquid detergent composition for hard surface of the present invention, the mass ratio of component (a) / component (b) is 0.1 or more and 10 or less. The mass ratio of component (a) / component (b) is 0.1 or more, preferably 0.5 or more, more preferably 1 or more, further 1.5 or more, further 1.8 or more, and more preferably 2 or more. In addition, from the viewpoint of foaming during washing, the mass ratio of the component (a) / (b) is 10 or less, preferably 8 or less, more preferably 5 or less, still more preferably 3 or less, and more preferably 2.5 or less. Further preferred.

  In the liquid detergent composition for hard surface of the present invention, the mass ratio of component (d) / component (c) is 3 or more and 10 or less. In terms of detergency against pink stains, the mass ratio of component (d) / component (c) is 3 or more, preferably 5 or more, and more preferably 7 or more. From the viewpoint of foaming during washing, the mass ratio of the component (d) / (c) is 10 or less, preferably 9.5 or less, more preferably 9 or less, and still more preferably 8 or less.

  In the liquid detergent composition for hard surface of the present invention, the mass ratio of [(c) component + (d) component] / [(a) component + (b) component] is 1 or more and 10 or less. From the viewpoint of detergency against pink stains, the mass ratio of [(c) component + (d) component] / [(a) component + (b) component] is 1 or more, 1.5 or more, further 2 or more, Further, 2.5 or more, more preferably 2.8 or more is preferable. From the viewpoint of foaming during washing, the mass ratio of [(c) component + (d) component] / [(a) component + (b) component] is 10 or less, 8 or less, further 5 or less, and further 4 Hereinafter, 3 or less is more preferable.

  In the liquid detergent composition for hard surface of the present invention, the component (a) is 0.5% by mass or more, further 0.7% by mass or more, further 1% by mass or more, further 1.5% by mass or more, It is preferable to contain 2% by mass or more, and 5% by mass or less, further 4% by mass or less, further 3% by mass or less, and further preferably 2.5% by mass or less.

  Further, the liquid detergent composition for hard surface of the present invention preferably contains (b) component at 0.5% by mass or more, further 0.7% by mass or more, and further 0.9% by mass or more, and It is preferable to contain 10% by mass or less, further 5% by mass or less, further 4% by mass or less, further 3% by mass or less, and further 2% by mass or less.

  Moreover, the liquid detergent composition for hard surfaces of the present invention has a component (c) of 0.5% by mass or more, further 0.7% by mass or more, and further 0.9% by mass from the viewpoint of detergency against pink stains. The content is preferably 10% by mass or less, further 5% by mass or less, further 4% by mass or less, further 3% by mass or less, and further preferably 2% by mass or less.

  Moreover, in the liquid detergent composition for hard surfaces of this invention, the sum total of content of (a) component, (b) component, (c) component, and (d) component is a composition from a viewpoint of mixing | blending stability. Among them, 1% by mass or more, further 3% by mass or more, further 5% by mass or more, further 8% by mass or more, further preferably 10% by mass or more, and 30% by mass or less, further 20% by mass or less, It is preferable that it is 15 mass% or less.

<Other ingredients>
The liquid detergent composition for hard surface of the present invention is selected from the group consisting of amphoteric surfactants and nonionic surfactants as component (e) for the purpose of imparting further detergency against pink stains. One or more surfactants can be included. Foaming is enhanced by the amphoteric surfactant and the nonionic surfactant, and the adhesion of the composition to the soil is improved, so that the soil removal effect can be further enhanced.

  Among the components (e), the amphoteric surfactant is preferably an amphoteric surfactant having an alkyl group having 8 to 22 carbon atoms from the viewpoint of foaming. Furthermore, in this amphoteric surfactant, the carbon number of the alkyl group is preferably 10 or more, more preferably 11 or more, and is preferably 18 or less, more preferably 13 or less. As the amphoteric surfactant of component (e), one or more amphoteric surfactants selected from the group consisting of alkylbetaines, alkylamidobetaines, alkylsulfobetaines, alkylhydroxysulfobetaines, alkylamidohydroxysulfobetaines, and alkylamino fatty acid salts It is preferable to use an agent from the viewpoint of detergency and foaming. Among them, amphoteric surfactants selected from the group consisting of alkyl (C8 or more and 22 or less) amidopropyl betaine and alkyl (C8 or more and 22 or less) hydroxysulfobetaine are preferable, and (3-lauramidopropyl is more preferable. ) An amphoteric surfactant selected from the group consisting of dimethylbetaine and lauryldimethylhydroxysulfobetaine is more preferred. Further, two or more amphoteric surfactants listed here may be mixed and used.

  Among the components (e), as the nonionic surfactant, a polyoxyalkylene alkyl ether having an alkyl group having 10 to 18 carbon atoms and a polyoxyalkylene alkenyl ether having an alkenyl group having 10 to 18 carbon atoms , Polyoxyalkylene sorbitan fatty acid ester having a fatty acid group of 10 to 18 carbon atoms, alkyl polyglycoside having an alkyl group of 8 to 18 carbon atoms, sucrose having a fatty acid group of 8 to 18 carbon atoms Examples thereof include fatty acid esters and alkyl polyglyceryl ethers having an alkyl group having 8 to 18 carbon atoms. Among these, from the viewpoint of detergency against oily soil, polyoxyethylene alkyl ether having an alkyl group having 10 to 16 carbon atoms and having an average added mole number of ethylene oxide of 1 or more and 15 or less is preferable. From the viewpoint of foaming, an alkyl polyglycoside having an alkyl group having 8 to 18 carbon atoms and having a sugar condensation degree of 1 to 3 is preferred.

  In this invention, it is preferable to contain an amphoteric surfactant as (e) component, and it is more preferable to contain both an amphoteric surfactant and a nonionic surfactant as (e) component.

  [Amphoteric surfactant] / [Nonionic surfactant], which is a mass ratio of the amphoteric surfactant to the nonionic surfactant, is preferably 0.1 or more, and preferably 0.2 or more, from the viewpoint of blending stability. More preferably, 0.4 or more is still more preferable, 0.6 or more is further more preferable, 10 or less is preferable, 5 or less is more preferable, 3 or less is further preferable, 2 or less is further preferable, and 1.5 or less is further Preferably, 1.2 or less is still more preferable.

  In the liquid detergent composition for hard surface of the present invention, from the viewpoint of foaming at the time of washing, the component (e) is 0.5% by mass or more, further 0.8% by mass or more, 4% by mass or less, and further 3 It is preferable to contain 5 mass% or less.

  Moreover, the liquid detergent composition for hard surfaces of this invention can contain a metal ion scavenger [henceforth (f) component].

Specific examples of the component (f) include (i) amino acids such as aspartic acid, glutamic acid and glycine, and alkali metal salts or alkanolamine salts thereof.
(Ii) Aminocarboxylic acids such as nitrilotriacetic acid, iminodiacetic acid, ethylenediaminetetraacetic acid, hydroxyethylethylenediaminetriacetic acid, diethylenetriaminepentaacetic acid, glycol etherdiaminetetraacetic acid, hydroxyethyliminodiacetic acid, triethylenetetraminehexaacetic acid, diencoric acid And alkali metal salts or alkanolamine salts thereof.
(Iii) Diglycolic acid, oxydisuccinic acid, carboxymethyloxysuccinic acid, citric acid, lactic acid, tartaric acid, oxalic acid, malic acid, oxydisuccinic acid, gluconic acid, carboxymethyl succinic acid, carboxymethyl tartaric acid, and other organic acids Alkali metal salt or alkanolamine salt.

  Among these, hydroxycarboxylic acids such as citric acid and malic acid, aminocarboxylic acids such as ethylenediaminetetraacetic acid and hydroxyethylethylenediaminetriacetic acid, and salts thereof are preferable. The salt form is preferably a sodium salt, potassium salt, ammonium salt or alkanolamine salt.

  The content of the component (f) in the composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and further preferably 1% by mass or more, and 10% by mass or less, further 8% by mass or less, Furthermore, 6 mass% or less is preferable.

  In the liquid detergent composition for hard surfaces of the present invention, antiseptics other than the component (b), hydrotropes, dyes, viscosity modifiers, antioxidants, fragrances, etc., as long as the detergency and foaming are not impaired. Can be contained.

  The liquid detergent composition for hard surfaces of the present invention contains water. Water is used in an amount such that the total is 100% by mass. The liquid detergent composition for hard surface of the present invention preferably has a pH at 20 ° C. of 5 or more, more preferably 6 or more, and 12 or less, further 10 or less, and further 8 from the viewpoint of detergency against pink stains. The following is preferable. As the pH adjusting agent, an inorganic acid such as hydrochloric acid or sulfuric acid, or an acid agent such as an organic acid can be used. Moreover, as an alkaline agent, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate can be used.

  In the present invention, the sterilizing power of the component (b) is greatly improved by allowing the component (c) and the component (d) to exist in a specific condition in the composition containing the component (a) and the component (b). It has been found that it can be improved. In the combined system of the component (a) and the component (b), the effect of the component (b) is considered to be reduced, but the combination of the component (c) and the component (d) of the present invention is used under specific conditions. (B) The effect of the component is drastically improved, pink stains can be removed in a short time, and furthermore, it is unexpected from the technical common sense of this industry that it has excellent cleaning power for sebum stains adhering to hard surfaces. Effect.

  The liquid detergent composition for hard surfaces of the present invention is suitably used for cleaning hard surfaces such as bathrooms, bathtubs, washbasins, tiles, restrooms, washstands, mirrors, sinks around kitchens, countertops, and waterworks. It is done. It is suitably used for bathrooms. Here, the bathroom liquid detergent composition is intended not only for bathrooms but also for articles having other hard surfaces such as bathtubs and washbasins.

<Cleaning method of hard surface>
The present invention provides a method for cleaning a hard surface, wherein the liquid detergent composition for a hard surface of the present invention is brought into contact with pink stains derived from microorganisms generated on the hard surface. This method is a method for removing pink stains derived from microorganisms. In the cleaning method of the present invention, a method in which the composition is filled in a spray container and sprayed in a foam form to come into contact with dirt is preferable. In addition, a method of rinsing with a shower or the like after contact with dirt is preferable, but a method of scrubbing with a sponge or the like and rinsing with a shower or the like is more preferable from the viewpoint of improving detergency. In order to obtain a sufficient detergency, the amount applied to the soil is preferably 0.3 g or more, more preferably 0.5 g or more, more preferably 5 g or less, and further 2 g or less per 20 cm ² . Even if the composition is applied and immediately washed with a sponge or the like, a good removal effect can be obtained, but after applying to the stain, it is 10 seconds or more, preferably 0.5 minutes or more, more preferably 1 minute or more, A method of scrubbing with a sponge or the like after standing for 5 minutes or less, preferably 3 minutes or less, more preferably 2 minutes or less is preferable from the viewpoint of increasing the cleaning power.

According to the present invention, in the liquid detergent composition for hard surface of the present invention, the amount of component (c) is 0.02 g or more per 1 m ² , 0.05 g or more, 0.07 g or more, and 1 g or less. 5 g or less, 0.3 g or less, and 0.1 g or less in contact with pink stains derived from microorganisms generated on the hard surface, 0.5 minutes or more, 1 minute or more, 2 minutes or more, and A method for cleaning a hard surface is provided by allowing to stand for 10 minutes or less, further 5 minutes or less, and further 3 minutes or less and then rinsing with water.

<Examples 1-6 and Comparative Examples 1-5>
Liquid detergent compositions for hard surfaces listed in Tables 1 and 2 were prepared. The pH (20 ° C.) of each composition was adjusted to 7 with hydrochloric acid or sodium hydroxide. About these compositions, the detergency with respect to pink dirt, the detergency with respect to sebum dirt, and compounding stability were evaluated. The results are shown in Tables 1 and 2.

<Detergency test against pink dirt>
M. fujisawaence (GP-1) cells isolated and identified from bathroom pink soil samples were cultured at 30 ° C for 3 days using a PDA plate medium. Subcultured and cultured at 30 ° C. for 3 days. The cultured bacteria were scraped off one platinum ear, suspended in 4 ° DH hard water, centrifuged to remove the supernatant, and then resuspended in 4 ° DH hard water to prepare a OD = 0.8 bacterial solution. 10 μl of this bacterial solution was added to 1 ml of each composition and contacted for 1 minute. 100 μl of the composition after contact with the bacterial solution was diluted and inactivated by adding 900 μl of LP (Lecthin Polysorbate) diluent (Wako Pure Chemical Industries, Ltd.). This was further diluted with physiological saline, cultured for 4 days at 30 ° C. by the pour plate culture method, and the number of surviving bacteria was determined from the number of colonies obtained. Since pink stains are visually recognized by the formation of colonies, the fact that the number of surviving bacteria is small and the bactericidal property against the causative bacteria of pink stains is high in this test means that the cleaning ability against pink stains is excellent.
* Evaluation criteria A: The number of surviving bacteria is below the detection limit.
○: The number of bacteria decreased from the initial number of bacteria (log cfu / ml) is 3 or more and does not fall below the detection limit.
Δ: Decreasing number of bacteria from the initial number of bacteria (log cfu / ml) is 2 or more and less than 3.
X: The number of bacteria reduced from the initial number of bacteria (log cfu / ml) is 0 or more and less than 2.

<Detergency test against sebum dirt>
Model sebum soil colored with Sudan III was dissolved in chloroform at model sebum soil / chloroform = 1/4 (mass ratio). On a polypropylene plate (size 10 cm × 10 cm), 500 μl of dirt dissolved in chloroform is uniformly applied with a brush and then naturally dried for 5 hours. 200 μl of the composition shown in Tables 1 and 2 was applied to the soiled portion of the plate, allowed to stand at 25 ° C. for 5 minutes, washed with water, and the detergency was judged visually.
* Evaluation criteria ◎: Dirt was completely removed ○: Dirt was almost removed △: Dirt was removed by half ×: Dirt was not removed at all

<Composite stability (appearance)>
The appearance of the composition immediately after preparation was visually observed.

In the table, the concentrations of the blended components are described in terms of the effective amount. The components in the table are as follows.
Sodium alkyl ether sulfate ester: polyoxyethylene (ethylene oxide average addition mole number 4.0) alkyl (carbon number 10-16) sodium ether sulfate ester (3-lauramidopropyl) dimethylbetaine: fatty acid (carbon number 12) Amidopropyl-N, N-dimethyl-acetate betaine alkyl glucoside: alkyl (carbon number 10-16) polyglucose (average sugar condensation degree 1-2)
Polyoxyethylene alkyl ether: 12 to 14 carbon atoms of alkyl group, average number of moles of ethylene oxide added 7
・ EDTA: Ethylenediaminetetraacetic acid sodium salt

  From the results of Examples and Comparative Examples, the composition of the present invention using the components (a), (b), (c), and (d) under predetermined conditions provides an excellent cleaning effect against pink stains. You can see that Moreover, it turns out that the composition of this invention is excellent also in the detergency with respect to sebum dirt. In addition, since a part of the comparative examples had poor blending stability and separation occurred, the cleaning power against pink soil and the cleaning power against sebum soil were not evaluated.

Claims (4)

(A) anionic surfactant (hereinafter referred to as component (a)), (b) a quaternary ammonium salt type cationic surfactant (hereinafter referred to as component (b)), (c) benzyl alcohol (hereinafter referred to as component) (Referred to as component (c)), (d) butoxyethoxyethanol (hereinafter referred to as component (d)) and water,
The mass ratio of (a) component / (b) component is 0.1 or more and 10 or less,
The mass ratio of (d) component / (c) component is 3 or more and 10 or less,
The mass ratio of [(c) component + (d) component] / [(a) component + (b) component] is 1 or more and 10 or less.
Liquid detergent composition for hard surfaces.   The liquid detergent composition for hard surfaces according to claim 1, wherein the pH at 20 ° C is 5 or more and 12 or less.   The hard component according to claim 1 or 2, further comprising, as component (e), 0.5% by mass or more and 4% by mass or less of one or more surfactants selected from the group consisting of amphoteric surfactants and nonionic surfactants. Liquid detergent composition for surfaces.   A method for cleaning a hard surface, comprising bringing the liquid detergent composition for a hard surface according to any one of claims 1 to 3 into contact with pink stains derived from microorganisms generated on the hard surface.