JP4787201B2 - Detergent composition for hard surface - Google Patents

Description

  The present invention relates to a hard surface cleaning composition.

  As dirt on the hard surface in the house, especially dirt around kitchen cooking equipment is dirt centered on cooking-derived oil, especially around the stove because the heat source is near, oil is easily deteriorated, It is very difficult to remove. In order to remove these oil-derived denatured soils, a strong alkaline liquid detergent containing a solvent has been proposed. For example, Patent Literature 1, Patent Literature 2, and Patent Literature 3 describe a hard surface cleaning composition containing butyl carbitol (also referred to as diethylene glycol monobutyl ether) with suppressed solvent odor.

  Patent Document 4 (Japanese Patent Laid-Open No. 11-189796) and Patent Document 5 (Japanese Patent Laid-Open No. 7-3289) disclose a hard surface cleaning containing a monoalkyl monoglyceryl ether, a surfactant and an alkali agent or a builder. Agents are described, amine compounds are described as alkaline agents, and organic acid salts are described as builders. In addition, in the detailed description of Patent Document 5, other organic solvents are listed as optional components, and specific examples include diethylene glycol monobutyl ether.

Japanese Patent Laid-Open No. 4-91197 JP-A-5-214392 JP-A-5-214393 Japanese Patent Laid-Open No. 11-189796 Japanese Patent Laid-Open No. 7-3289

  Cleaning around the kitchen range, especially the stove and grill, is very troublesome due to the structure. In addition, as described above, dirt derived from foods and oils and fats is difficult to remove because it is denatured and cured by heat. In general, a highly alkaline detergent containing an organic solvent is used for such stains, but these detergents are difficult to use due to their pH, while reducing the pH. In this case, the cleaning power is insufficient. In addition, recently, the cleanliness of daily life has increased, and the range of easy-to-clean range has become widespread due to the structure of IH cookers, etc., so it is easy to use with reduced alkalinity. There is a need for hard surface cleaners that can be made.

  An object of this invention is to provide the cleaning composition for hard surfaces which has high detergency, is low in pH, and is easy to use.

The present invention relates to (A) a monoalkyl glyceryl ether whose alkyl group has 3 to 8 carbon atoms [hereinafter referred to as component (A)], (B) a compound represented by the following general formula (1) [hereinafter referred to as (B ) Component], (C) amines (hereinafter referred to as component (C)), (D) polyvalent carboxylic acid having a molecular weight of 40 to 400 and / or a salt thereof (hereinafter referred to as component (D)), (D) Surfactant (however, excluding (A) and (B)) [hereinafter referred to as (E) component] 0.1 to 5% by mass, and water,
The mass ratio of (A) and (B) is (A) / (B) = 0.2-5,
The total content of (A) and (B) is (A) + (B) = 1-15% by mass,
The mass ratio of (C) and (D) is (C) / (D) = 5-30,
The total content of (C) and (D) is (C) + (D) = 2 to 7% by mass (where (D) is converted as the acid form), and the pH at 20 ° C. is 9.5 to 11 It is related with the cleaning composition for hard surfaces which is .5.
R ¹ (OR ² ) _m OH (1)
[Wherein, R ¹ is an alkyl group having 2 to 6 carbon atoms, m is a number having 1 to 4 and R ² is an alkylene group having 2 or 3 carbon atoms. ]

  According to the present invention, a hard surface cleaning agent that exhibits excellent detergency against stubborn denatured oil stains, etc., despite having a pH lower than that of a conventional range cleaning agent and in an easy-to-use range. A composition can be provided. The cleaning composition for hard surface of the present invention is applicable to cleaning hard surfaces in a residence such as bathrooms, kitchens, some cooking utensils such as grills, floors, toilets, etc. Easy to use at home for cleaning grills, ranges, etc.

<(A) component>
(A) A component is monoalkyl glyceryl ether whose carbon number of an alkyl group is 3-8. This compound has little influence on the base material damaging property and exhibits excellent detergency. Although disclosed in Patent Document 4, in the present invention, the alkyl group is preferably an alkyl group having 3 to 8 carbon atoms, detergency and liquid stability, and more preferably an alkyl group having 4 to 6, more preferably an alkyl group. It is a compound having 5 carbon atoms. The component (A) may be a mixture of compounds having different alkyl groups and / or different alkyl group structures, and in particular, linear and branched compounds are mixed in an alkyl group having 4 to 6 carbon atoms. A mixture satisfying this requirement is preferable in terms of detergency.

The component (A) is generally produced by reacting an alcohol and an epoxy compound such as epihalohydrin or glycidol using an acid catalyst such as BF ₃ or an aluminum catalyst, and is described in JP-A No. 2001-49291. As a mixture containing a plurality of products. Specifically, a compound in which pentanol is added to the 1st position of the epoxy compound (3- (pentaneoxy) -1,2-propanediol) or a compound added in the 2nd position of the epoxy compound (2- (pentaneoxy)) -1,3-propanediol). In addition, as a by-product, there is a multi-addition compound in which an epoxy compound is further added to these compounds. In the present invention, it is preferable to use a monoalkyl glyceryl ether having a content of these by-products of 10% by mass or less, particularly preferably 1% by mass or less.

<(B) component>
The component (B) is a compound represented by the following general formula (1).
R ¹ (OR ² ) _m OH (1)
[Wherein, R ¹ is an alkyl group having 2 to 6 carbon atoms, m is a number having 1 to 4 and R ² is an alkylene group having 2 or 3 carbon atoms. ]

A compound in which R ¹ is a methyl group depends on the ratio of m, but there are many compounds having a high vapor pressure and they are easily volatilized, so that the solvent will fly off during wiping, and sufficient detergency cannot be obtained. In the present invention, the component (B) preferably has a vapor pressure at 20 ° C. of less than 2 mmHg, particularly 1 mmHg or less.

Specific examples of the component (B) include the following.
For example, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, diethylene glycol monohexyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene Examples include glycol monobutyl ether, propylene glycol monohexyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, and triethylene glycol monobutyl ether. Among these, as a compound having excellent detergency, inexpensive and easy to use, diethylene glycol monobutyl ether, dipropylene glycol monobutyl ether, triethylene glycol monobutyl ether, diethylene glycol monohexyl ether, monopropylene glycol monobutyl ether, particularly diethylene glycol monobutyl ether, Dipropylene glycol monobutyl ether is preferred. Diethylene glycol monobutyl ether is preferably one having a low content of other solvents described in Patent Document 1 and having a suppressed solvent odor, and an antioxidant added to suppress the generation of odor due to storage Is preferably used.

  In the present invention, by using the component (A) and the component (B) in combination, it is possible to obtain an excellent detergency against hard surface stains.

<(C) component>
In the present invention, the amine of component (C) refers to amine or ammonia. Amines are known to act as alkaline agents when blended into liquid detergents. In this invention, what is chosen from the following general formula (2)-(5) can be mentioned.

[Wherein R ¹¹ , R ¹⁴ , R ¹⁶ , R ¹⁸ , R ²⁰ , R ²² , R ²³ each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R ¹² , R ¹³ , R ¹⁵ , R ¹⁷ , R ¹⁹ and R ²¹ each represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a hydroxyalkyl group having 2 to 4 carbon atoms. D represents an alkylene group having 1 to 3 carbon atoms or an oxygen atom. ]

  Examples of the compound represented by the general formula (2) include ammonia, monoethanolamine, diethanolamine, triethanolamine, N-methylpropanolamine, 2-amino-2-methyl-1-propanol and the like. Examples of the compound represented by the general formula (3) include N- (β-aminoethyl) ethanolamine. Examples of the compound represented by the general formula (4) include diethylenetriamine. Examples of the compound represented by the general formula (5) include morpholine and N-ethylmorpholine.

  Most preferred amines in the present invention are monoethalamine, diethanolamine, triethanolamine, N-methylpropanol, and ammonia, and among these, monoethanolamine is particularly preferred.

  The component (C) can suppress fluctuations in the pH of the cleaning agent due to the acid by combining with the polyvalent carboxylic acid of the component (D) described later or a salt thereof. As a result, the acid derived from the target soil There is no decrease in pH due to the weak alkalinity and excellent detergency can be obtained.

<(D) component>
(D) component of this invention is molecular weight 40-400, Preferably it is 90-360, More preferably, it is 100-300, Comprising: The polyvalent which has 2 or more, Preferably 2-6 carboxylic acid groups in a molecule | numerator Carboxylic acid or a salt thereof. Specifically, formic acid, acetic acid, gluconic acid, malic acid, tartaric acid, lactic acid, citric acid, succinic acid, maleic acid, carboxylic acid selected from fumaric acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, methylglycine diacetic acid, glutamic acid diacetic acid An aminocarboxylic acid selected from serine diacetic acid and aspartic acid diacetic acid, and salts thereof are preferred, and citric acid, succinic acid, and ethylenediaminetetraacetic acid are particularly preferred. The salt is preferably blended as a sodium salt or a potassium salt, but may be a salt with a compound of the component (B) with an amine.

<(E) component>
Examples of the surfactant (E) used in the present invention include one or more of an anionic surfactant, a nonionic surfactant, an amphoteric surfactant, and a cationic surfactant. In particular, it is preferable to add a nonionic surfactant and / or an amphoteric surfactant in terms of detergency and foaming power. In the present invention, the component (A) and the component (B) are excluded from the component (E).

  The anionic surfactant has a linear or branched alkyl group or an alkyl group, specifically, an alkylbenzene sulfonate, an alkyl or alkenyl ether sulfate, an alkyl or alkenyl sulfate, Examples thereof include olefin sulfonates, alkane sulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, α-sulfo fatty acid salts or esters thereof. As the salt of the anionic surfactant, an alkali metal salt and an alkaline earth metal salt can be used in consideration of stability. Moreover, it may mix | blend as an acid and may form a salt with the alkali agent of the arbitrary components mentioned later, and may form a salt with (C) component, as long as the pH requirements of this invention are satisfy | filled.

  Nonionic surfactants include polyoxyalkylene alkyl ethers, alkyl polyglucosides, higher fatty acid alkanolamides or alkylene oxide adducts thereof, sucrose fatty acid esters, fatty acid glycerin monoesters, pluronic surfactants, sorbitan fatty acid esters or ethylene thereof. Examples thereof include oxide adducts.

  Examples of amphoteric surfactants include alkylamine oxide, sulfobetaine, carbobetaine and the like.

  Examples of the cationic surfactant include quaternary ammonium salts.

In the present invention, one or more surfactants selected from the following (I) to (VI) are particularly preferable in terms of detergency and foaming power.
(I) an alkyl or alkenyl sulfate ester salt having an alkyl group or an alkenyl group having 8 to 20 carbon atoms;
(II) a linear alkylbenzene sulfonate having an alkyl group having 10 to 14 carbon atoms;
(III) A polyoxyethylene alkyl or alkenyl ether sulfate having an EO average addition mole number of 1 to 8, preferably 1 to 6, having an alkyl group or alkenyl group having 8 to 18 carbon atoms, preferably 10 to 16 carbon atoms;
(IV) an alkyl glycoside represented by the following general formula (6);
R ³⁰ (OR ³¹ ) _x G _y (6)
[Wherein R ³⁰ represents a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms, or an alkyl (C 1 to 6) phenyl group, and R ¹¹ represents an alkylene group having 2 to 4 carbon atoms. G represents a residue derived from a reducing sugar having 5 to 6 carbon atoms, x represents an average value of 0 to 5, and y represents an average value of 1 to 10. ]
(V) an alkylamine oxide represented by the following general formula (7);

[Wherein, R ^40a is a linear alkyl group or alkenyl group having 8 to 16 carbon atoms, preferably 10 to 16 carbon atoms, particularly preferably 10 to 14 carbon atoms, and R ^40c and R ^40d are alkyl groups having 1 to 3 carbon atoms. Or it is a hydroxyalkyl group, Preferably they are a methyl group, an ethyl group, or a hydroxyethyl group. R ^40b is an alkylene group having 1 to 5 carbon atoms, preferably 2 or 3 carbon atoms. A is a group selected from —COO—, —CONH—, —OCO—, —NHCO—, and —O—, and p is a number of 0 or 1. ]
(VI) A betaine amphoteric surfactant represented by the following general formula (8).

[Wherein, R ^41a is an alkyl group or alkenyl group having 9 to 23 carbon atoms, preferably 9 to 17 carbon atoms, particularly preferably 9 to 15 carbon atoms, and R ^41b is an alkylene group having 1 to 6 carbon atoms, preferably 2 or 3 carbon atoms. It is a group. B is a group selected from —COO—, —CONH—, —OCO—, —NHCO—, and —O—, and r is a number of 0 or 1. R ^41c and R ^41d are an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group, and R ^41e is an alkylene group having 1 to 5 carbon atoms, preferably 1 to 3 carbon atoms which may be substituted with a hydroxy group. . D is a group selected from —COO ⁻ , —SO ₃ ⁻ , and —OSO ₃ ^— . ]

<Detergent composition for hard surface>
In the hard surface cleaning composition of the present invention, the total content of the component (A) and the component (B) is (A) + (B) = 1-15% by mass, preferably 2-12% by mass, More preferably, it is 3-10 mass%. Moreover, mass ratio of (A) component and (B) component is (A) / (B) = 0.2-5.0, Preferably it is 0.5-4.5. Excellent cleaning properties can be obtained within these ranges. After satisfying this range, the content of the component (A) in the composition is 1 to 10% by mass, further 2 to 8% by mass, and the content of the component (B) is 1 to 10% by mass, and further 2 It is preferably ˜6% by mass.

  In the cleaning composition for hard surface of the present invention, the total content of the component (C) and the component (D) is (C) + (D) = 2 to 7% by mass, preferably 3 to 6% by mass. is there. Moreover, mass ratio of (C) component and (D) component is (C) / (D) = 5-30, Preferably it is 10-25, More preferably, it is 12-20. In calculating these values, the amount of component (D) is converted to the acid form. After satisfying this range, the content of the component (C) in the composition is 1 to 6% by mass, further 2 to 5% by mass, and the content of the component (D) is 0.07 to 2% by mass, Furthermore, it is preferable that it is 0.1-1 mass%.

  Component (C) is known as an alkaline agent used in liquid detergents, and component (D) is also known to be incorporated into detergents as sequestering agents. Usually, the amines which are the component (C) increase the alkalinity of the cleaning agent by being blended in the liquid cleaning agent and contribute to the improvement of the cleaning power. Since the present invention proposes a pH that can be easily used for daily use, this object can be achieved by reducing the blending of the component (C). However, reducing the component (C) leads to a decrease in cleaning power, and an excellent cleaning power cannot be obtained. The present inventors have found that this is due to the acid derived from dirt generated during cleaning, and have found that this sharply decreases the pH of the cleaning agent and decreases the cleaning power. In addition, the inventors dared to increase the compounding amount of the amine as the component (C), and to adjust the pH of the polyvalent carboxylic acid or the salt as the component (D) to a pH that can be easily used for daily use. By achieving this combination, the inventors came up with the idea of suppressing pH fluctuations due to soil-derived acids, and reached the conditions for the components (C) and (D).

  In the cleaning composition of the present invention, the content of the surfactant as the component (E) is 0.1 to 5% by mass, giving sufficient detergency and considering the economy, is preferably 0.00. It is 2-3 mass%, More preferably, it is 0.5-2 mass%.

  In the present invention, the component (E) contains at least one of (IV) and (V) among the above (I) to (VI), that is, the surfactant (IV) and / or (V). It is preferable to contain, and it is more preferable that the total amount in these compositions is 0.1 mass% or more, and further 0.1 to 2 mass%. In particular, it is most preferable to contain 0.01 to 1% by mass of the surfactant (IV) in the composition and 0.1 to 1% by mass of the surfactant (V) in the composition.

  In addition, in this invention, content of an anionic surfactant shall be the mass% computed with the quantity of the acid form. Moreover, it is preferable not to mix | blend 1 mass% or more of polyoxyalkylene alkyl ethers with a C8 or more alkyl group in a composition.

  The pH of the hard surface cleaning composition of the present invention is 9.5 to 11.5, preferably 10.0 to 11.0 at 25 ° C. from the viewpoint of detergency and alkalinity in use. The pH may be adjusted only with the component (C) and the component (D), but other acids and alkalis may be used. For example, sodium hydroxide, potassium hydroxide, sodium bicarbonate, potassium bicarbonate, Examples thereof include sodium carbonate, potassium carbonate, hydrochloric acid, sulfuric acid, nitric acid, and fatty acids.

  The hard surface cleaning composition of the present invention is a liquid, and the balance is water. The water used is preferably a component such as a metal present in a trace amount, or ion-exchanged water from which the hardness component has been removed if the hardness is high. The content of water is preferably 80 to 97% by mass, particularly preferably 85 to 92% by mass in the composition.

<Other ingredients>
You may mix | blend a solvent with the cleaning composition for hard surfaces of this invention to such an extent that it does not give influence on the object surface. Examples of the solvent include C 2-6 polyhydric alcohols other than the component (A) [hereinafter referred to as component (F)].

The component (F) of the present invention is a polyhydric alcohol having 2 to 6 carbon atoms, preferably 2 to 5 carbon atoms, more preferably 2 to 4 carbon atoms. The polyhydric alcohol is preferably one having a structure in which a hydrogen atom of the hydrocarbon or ether compound having the carbon number is substituted with a hydroxy group. The number of hydroxy groups in the polyhydric alcohol is preferably 2 or 3. In addition, since this effect will fall when the chain length of a polyhydric alcohol becomes long, it is desirable not to use triethylene glycol. Examples of the component (F) include the following compounds.
(F1) Dihydric alcohol ethylene glycol, propylene glycol, butanediol, pentanediol, diethylene glycol, hexanediol, dipropylene glycol (F2) trihydric alcohol glycerin, trihydroxymethylethane (F3) tetrahydric or higher alcohol erythritol (tetravalent) ), Xylitol (pentavalent), sorbitol (hexavalent)

  Of these, polyhydric alcohols selected from the group of (F1) and (F2) are preferred, and ethylene glycol, 1,2-butanediol, 1,6-hexanediol, and propylene glycol are preferred from the standpoint of detergency. Glycerin is preferable because it not only exhibits both effects in a well-balanced manner, but is easy to use from the viewpoints of economy, safety, and liquid stability. The component (F) is preferably contained in the composition in an amount of 0.5 to 5% by mass, more preferably 1 to 3% by mass, but (F) / [(A) + (B)] (mass ratio). Is preferably 3 or less from the viewpoint of detergency.

  Incidentally, a monohydric alcohol having 2 or 3 carbon atoms [hereinafter referred to as component (G)], specifically ethanol and isopropanol, are solvents that are often blended in a liquid detergent, but in the present invention (A) In order not to reduce the detergency of the component and the component (B), the content thereof is preferably less than 1% by mass, particularly preferably 0.001% by mass to 0.1% by mass in the composition.

  The hard surface cleaning composition of the present invention is, in addition to the above components, optionally known to be incorporated into household cleaning agents, such as paratoluenesulfonic acid and xylenesulfonic acid, and their components. Hydrotropes such as salts, dispersants such as polyacrylic acid and salts, antioxidants such as BHT, thickeners, fragrances, dyes, pigments, preservatives, and the like are added as long as the effects of the present invention are not impaired. be able to.

  The hard surface cleaning composition of the present invention can be applied to the surface of the object as a liquid or foam by spraying. Adhesion to the surface may be increased. Further, it may be used by impregnating a sheet of nonwoven fabric, woven fabric or paper. When the aerosol is used as the spray method, it is necessary to disperse in the propellant, and it is necessary to consider compatibility with the propellant in selecting the component (E). The composition of the present invention is preferably a spray container-containing cleaning agent filled in a container having a spray means, and the container preferably has a trigger sprayer. Although a container with high light-shielding property is desirable, a colored transparent container may be used as long as it does not affect discoloration or deterioration of the cleaning composition.

  The viscosity of the hard surface cleaning composition of the present invention is preferably 1 to 10 mPa · s, particularly when used for spraying. For this viscosity, a B type viscometer (manufactured by TOIMEC) was used, and the rotor No. 1. Viscosity after stirring for 1 minute at 60 rpm under the condition of 20 ° C.

The liquid detergent compositions shown in Tables 1 and 2 were prepared and evaluated as follows. The liquid detergent composition was filled in a trigger sprayer container and used for the following evaluation. This trigger type sprayer container was used after removing the contents of Magiclin (product of Kao Corporation, commercially available in March 2006), thoroughly washing with ion-exchanged water, and drying.
The pH was finally adjusted with hydrochloric acid and sodium hydroxide.

<Evaluation method>
Ten grams of tempura oil was evenly applied to an iron plate, baked at a temperature of 180 ° C. for 30 minutes, and then allowed to stand at room temperature for 3 months to form an almost dry film to form a model contaminated plate. About 0.5 ml of the liquid detergent composition was sprayed on a model stain plate fixed horizontally and left for 1 minute. Thereafter, the raised dirt was lightly removed with absorbent cotton. This operation was performed on 20 different contaminated plates, and the degree of cleaning of each was visually observed, evaluated according to the following criteria, and displayed as an average value of 20 times. The results are shown in Tables 1 and 2.
5: Complete stain removal 4: 60% to 80% stain removal 3: 50% to 60% stain removal 2: 30% to 50% stain removal 1: 30% stain removal 0: Dirt is not removed at all.

(Note) The symbols in the table are as follows.
AO: Lauryldimethylamine oxide APAO Lauramidopropylamine oxide AG (1): Alkyl glycoside (having 12 and 14 alkyl groups and an average degree of glucose sugar condensation of 1.35)
AG (2): Lauryl glucoside

Claims (3)

(A) monoalkyl glyceryl ether having 3 to 8 carbon atoms in the alkyl group, (B) a compound represented by the following general formula (1), (C) amines, (D) a polyvalent carboxylic acid having a molecular weight of 40 to 400 An acid and / or a salt thereof, (E) a surfactant (excluding (A) and (B)) 0.1 to 5% by mass, and water,
The mass ratio of (A) and (B) is (A) / (B) = 0.2-5,
The total content of (A) and (B) is (A) + (B) = 1-15% by mass,
The mass ratio of (C) and (D) is (C) / (D) = 5-30,
The total content of (C) and (D) is (C) + (D) = 2 to 7% by mass (where (D) is converted as the acid form), and the pH at 20 ° C. is 9.5 to 11 A hard surface cleaner composition of .5.
R ¹ (OR ² ) _m OH (1)
[Wherein, R ¹ is an alkyl group having 2 to 6 carbon atoms, m is a number having 1 to 4 and R ² is an alkylene group having 2 or 3 carbon atoms. ] The hard-surface cleaning composition according to claim 1, wherein (E) is one or more surfactants selected from the following (I) to (VI).
(I) an alkyl or alkenyl sulfate ester salt having an alkyl group or an alkenyl group having 8 to 20 carbon atoms;
(II) Linear alkylbenzene sulfonate having an alkyl group having 10 to 14 carbon atoms (III) Polyoxyethylene alkyl having an average addition mole number of ethylene oxide of 1 to 8 having an alkyl group or alkenyl group having 8 to 18 carbon atoms Or alkenyl ether sulfate (IV) alkylglycoside represented by the following general formula (6) R ³⁰ (OR ³¹ ) _x G _y (6)
[Wherein R ³⁰ represents a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms, or an alkyl (C 1 to 6) phenyl group, and R ¹¹ represents an alkylene group having 2 to 4 carbon atoms. G represents a residue derived from a reducing sugar having 5 to 6 carbon atoms, x represents an average value of 0 to 5, and y represents an average value of 1 to 10. ]
(V) an alkylamine oxide represented by the following general formula (7);

[Wherein, R ^40a is a linear alkyl group or alkenyl group having 8 to 16 carbon atoms, and R ^40c and R ^40d are an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms. R ^40b is an alkylene group having 1 to 5 carbon atoms. A is a group selected from —COO—, —CONH—, —OCO—, —NHCO—, and —O—, and p is a number of 0 or 1. ]
(VI) A betaine amphoteric surfactant represented by the following general formula (8).

[Wherein, R ^41a is an alkyl group or an alkenyl group having 9 to 23 carbon atoms, and R ^41b is an alkylene group having 1 to 6 carbon atoms. B is a group selected from —COO—, —CONH—, —OCO—, —NHCO—, and —O—, and r is a number of 0 or 1. R ^41c and R ^41d are an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group, and R ^41e is an alkylene group having 1 to 5 carbon atoms which may be substituted with a hydroxy group. D is a group selected from —COO ⁻ , —SO ₃ ⁻ , and —OSO ₃ ^— . ] The detergent composition for hard surfaces according to claim 2, which contains the surfactant (IV) and / or (V) as (E), and the total amount thereof is 0.1% by mass or more in the composition. .