JP7199863B2 - LIQUID CLEANER COMPOSITION FOR HARD SURFACES - Google Patents

Description

TECHNICAL FIELD The present invention relates to a liquid cleaning composition for hard surfaces and a method for improving the drainage property thereof.

Articles having a hard surface, such as tableware, are often contaminated with oil stains and other stains that require a large cleaning load. Therefore, in washing tableware, etc., a liquid detergent having excellent detergency against oil stains is required.

Patent Document 1 discloses a liquid detergent containing an anionic surfactant, an alkylpolyglycoside and a soap, comprising 2-10% by weight of fatty alcohol sulfate, 5-25% by weight of an alkylpolyglycoside, and 0.1-25% by weight of a soap. Liquid detergents are described which contain 9% by weight, 3-8% by weight of lower alcohols and have viscosities of 400-3000 mPa·s.

Further, in Patent Document 2, 1 to 50% by mass of a specific alkyl glycoside type nonionic surfactant, a monoalkyl sulfosuccinate having an alkyl group having 5 to 18 carbon atoms or a salt thereof, and an alkyl group having 5 to 18 carbon atoms Disclosed is a dishwashing detergent composition containing a compound selected from 5 to 18 dialkyl sulfosuccinates or salts thereof and a fatty acid having 8 to 22 carbon atoms or a salt thereof.

On the other hand, Patent Documents 3 to 5 can be cited as detergents containing alkylalkanolamine surfactants.

Patent Document 6 describes a cleaning composition for glass containing 0.5 to 2% by weight of a polyoxyethylene alkylamine and 0.2 to 1% by weight of a nonionic activator in an acidic aqueous solution as essential components. It is

Japanese Patent Publication No. 6-504557 JP 2012-172032 A JP 2016-132689 A JP-A-2003-119496 JP 2008-247952 A JP-A-63-048398

Hard surface cleaners based on nonionic surfactants have excellent detergency against greasy stains. Further improvement is desired. In addition, when hard articles, especially hydrophilic surfaces such as glass and ceramics, are washed, if water drainage is poor, not only does the drying time lengthen, but also white spots are formed when water droplets adhere to the surface and dry. Aesthetic problems such as

The present invention provides a liquid detergent composition for hard surfaces, which is excellent in detergency against oil stains adhering to hard articles, and also excellent in drainability after treatment of hard articles.

The present invention is a liquid cleaning composition for hard surfaces containing a surfactant,
As a surfactant, (A) a nonionic surfactant [hereinafter referred to as component (A)] and optionally (B) an amphoteric surfactant [hereinafter referred to as component (B)]. (A) the proportion of the component is 60% by mass or more,
As the component (A), (A1) an alkyl mono- or dialkanolamine having an alkyl group having 10 or more and 18 or less carbon atoms and an alkanol group having 2 or 3 carbon atoms or an alkylene oxide adduct thereof (a carbon atom of an alkylene oxide number is 2 or 3) [hereinafter referred to as (A1) component],
The proportion of component (A1) in the total of component (A) and component (B) is 0.5% by mass or more and 20% by mass or less.
It relates to a liquid cleaning composition for hard surfaces.

ADVANTAGE OF THE INVENTION According to this invention, the liquid detergent composition for hard surfaces which is excellent in the detergency with respect to the oil stain|pollution|contamination which adhered to the hard article, and was excellent also in the water-removability after hard article processing is provided.

Although the action mechanism of the present invention is not clear, the present inventors believe as follows. Component (A1) is a low HLB surfactant, also known as a WO-type emulsifier. Therefore, it selectively acts on the interface between the hydrophobic surface and the dirt containing oil and fat, and significantly lowers the interface energy. It is believed that the action of the nonionic surfactant other than the component (A1) on the interface with reduced surface energy significantly enhances the effect of removing stains. On the other hand, hydrophilic surfaces such as glass generally have a high affinity for water, so they do not drain well. shows a tendency to worsen. However, it is thought that at least a portion of the component (A1) is in a form that is likely to be adsorbed on a hydrophilic surface such as glass, especially near neutrality, and a portion remains on the hydrophilic surface even after washing, Contributes to moderate hydrophobization of hydrophilic surfaces. It is believed that this remarkably improves the drainage property of the liquid cleaning composition for hard surfaces of the present invention.

<Liquid cleaning composition for hard surfaces>
[Surfactant]
The liquid cleaning composition for hard surfaces of the present invention contains, as surfactants, a nonionic surfactant as component (A) and an amphoteric surfactant as optional component (B). Further, in the liquid cleaning composition for hard surfaces of the present invention, as the component (A), the alkyl group of the component (A1) has from 10 to 18 carbon atoms and the alkanol group has 2 or 3 carbon atoms. It contains an alkyl mono- or dialkanolamine or its alkylene oxide adduct (the alkylene oxide has 2 or 3 carbon atoms).

First, the (A1) component will be described.
The number of carbon atoms in the alkyl group of component (A1) is preferably 12 or more and preferably 16 or less.
The number of carbon atoms in the alkanol group of component (A1) is preferably 2.
The alkylene oxide of component (A1) is preferably an alkylene oxide having 2 carbon atoms, that is, ethylene oxide.
The average added mole number of the alkylene oxide of component (A1) is preferably 1 or more, more preferably 1.5 or more, and preferably 10 or less, more preferably 5 or less.

The (A1) component includes compounds represented by the following general formula (a1).

[Wherein, R ^1a is an alkyl group having 10 to 18 carbon atoms; AO is an alkyleneoxy group having 2 or 3 carbon atoms; It is a number of 0 or more and 10 or less, and m+n is a number of 1 or more and 10 or less. ]

In formula (a1), R ^1a preferably has 12 or more carbon atoms and preferably 14 or less carbon atoms.
In formula (a1), AO is preferably an alkyleneoxy group having 2 carbon atoms.
In formula (a1), m+n is preferably a number of 1.5 or more and preferably 5 or less.

The nonionic surfactant of component (A) contains a nonionic surfactant other than component (A1). In the present invention, a nonionic surfactant is the main base material for cleaning, and nonionic surfactants that have detergency against oily stains and also have abundant foaming during dishwashing are preferred. In the present invention, nonionic surfactants other than component (A1) include (A2) amine oxide surfactant (hereinafter sometimes referred to as component (A2)), (A3) alkyl glycoside surfactant ( hereinafter sometimes referred to as component (A3)), and (A4) glyceryl ether surfactant (hereinafter sometimes referred to as (A4) component). It is preferable from the viewpoint of foamability.

In the amine oxide surfactant of component (A2), at least one of the three groups bonded to the tertiary nitrogen atom is an alkyl group having 8 to 18 carbon atoms (hereinafter referred to as a long-chain alkyl group). and a tertiary amine oxide surfactant in which the remainder is an alkyl group having 1 to 3 carbon atoms (hereinafter referred to as a short-chain alkyl group).
The number of carbon atoms in the long-chain alkyl group of the tertiary amine oxide surfactant is preferably 8 or more and preferably 16 or less.
The number of carbon atoms in the short-chain alkyl group of the tertiary amine oxide surfactant is preferably 1.
In the tertiary amine oxide surfactant, one of the three groups bonded to the tertiary nitrogen atom is preferably a long-chain alkyl group, and the remaining two groups are preferably short-chain alkyl groups.

Examples of the tertiary amine oxide surfactant include compounds represented by the following general formula (a2).

[In the formula, R ^11a represents an alkyl group having a prime number of 8 to 18, and R ^12a and R ^13a each independently represents an alkyl group having 1 to 3 carbon atoms. D represents a -NHC(=O)- group or -C(=O)NH- group, and E represents an alkylene group having 1 to 5 carbon atoms. q and p denote q=0 and p=0 or q=1 and p=1. ]

In formula (a2), the number of carbon atoms in R ^11a is preferably 10 or more, more preferably 12 or more, and more preferably 14 or less.
In formula (a2), R ^12a and R ^13a are preferably C 1 methyl groups.
In formula (a2), q and p are preferably q=0 and p=0.

As the (A3) component alkyl glycoside surfactant, an alkyl glycoside surfactant having an alkyl group having 10 or more and 18 or less carbon atoms (hereinafter sometimes referred to as C _10-18 alkyl glycoside) is preferable.

As the C _10-18 alkyl glycoside, compounds represented by the following general formula (a3) are preferred.
R ^21a (OR ^22a ) _s G _t (a3)
[In the formula, R ^21a is a linear or branched alkyl group, alkenyl group or alkylphenyl group having 8 or more, preferably 10 or more, more preferably 12 or more and 18 or less, preferably 14 or less carbon atoms , preferably an alkyl group, R ^22a represents an alkylene group having 2 to 4 carbon atoms, and G represents a residue derived from a reducing sugar having 5 or 6 carbon atoms. s represents the average number of added moles and is a number of 0 or more and 5 or less. t indicates a number whose average value is 1 or more and 5 or less. ]

In general formula (a3), R ^21a is a straight line having 8 or more, preferably 10 or more, and 18 or less, preferably 14 or less, from the viewpoint of viscosity, detergency, foamability, and low-temperature storage stability. A chain or branched alkyl group.
In general formula (a3), s is preferably 0 or more and 2 or less, more preferably 0, from the viewpoint of viscosity, detergency, foamability, and low-temperature storage stability. t is preferably 1.1 or more, preferably 1.5 or less, more preferably 1.4 or less, from the viewpoint of viscosity, detergency, foamability and low-temperature storage stability. Note that t is a value measured by the proton NMR method.
In general formula (a3), G includes a residue derived from one or more monosaccharides selected from glucose and fructose from the viewpoint of viscosity, detergency, foamability, and low-temperature storage stability. G also includes residues derived from one or more polysaccharides selected from maltose and sucrose. G is preferably a residue derived from a monosaccharide of glucose.

As the component (A4) glyceryl ether surfactant, compounds represented by the following general formula (a4) are preferred.
R ^31a -[OCH ₂ CH(OH)CH ₂ ] _u -OH (a4)
[In the formula, R ^31a is an alkyl group having 8 or more and 10 or less carbon atoms, and u is a number of 1 or more and 3 or less. ]
In general formula (a4), R ^31a is preferably a branched-chain alkyl group from the viewpoint of washability, foamability, and low-temperature storage stability, and is a branched-chain alkyl group selected from a 2-ethylhexyl group, an isononyl group, and an isodecyl group. is more preferred, and a 2-ethylhexyl group is even more preferred. u is preferably 1 or 2, more preferably 1, from the viewpoint of washability, foamability, and low-temperature storage stability.
In the present invention, component (A4) is more preferably 2-ethylhexyl monoglyceryl ether.

The liquid cleaning composition for hard surfaces of the present invention can optionally contain an amphoteric surfactant as component (B) as a surfactant. Component (B), the amphoteric surfactant, has 8 or more, preferably 10 or more, and 18 or less, preferably 16 or less, more preferably 14 or less hydrocarbon groups, preferably one or more alkyl groups, Amphoteric surfactants preferably have one, preferably betaine type surfactants. Examples of betaine-type surfactants include alkylamino surfactants having an alkyl group or an amide group (carboxylic acid amide group) having 8 or more, preferably 10 or more, and 18 or less, preferably 16 or less, more preferably 14 or less carbon atoms. Examples include betaine acetate, alkylamidopropyl betaine acetate, alkylhydroxysulfobetaine, and amide amino acid (imidazoline betaine). More preferred in the present invention are N-alkyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)sulfobetaines. The number of carbon atoms in the alkyl group of the sulfobetaine is also preferably 8 or more, more preferably 10 or more, and preferably 18 or less, more preferably 16 or less, and still more preferably 14 or less.

The liquid cleaning composition for hard surfaces of the present invention can optionally contain an anionic surfactant as component (C) as a surfactant. The anionic surfactant is an anionic surfactant having one hydrocarbon group, preferably one alkyl group, having 8 or more carbon atoms, preferably 10 or more carbon atoms, and 18 or less, preferably 16 or less, more preferably 14 or less carbon atoms. Alkyl benzene sulfonate, polyoxyalkylene (preferably polyoxyethylene, average added mole number is 0.5 or more, preferably 1 or more, and 4 or less, preferably 3 or less) alkyl ether sulfate, Alkyl sulfate ester salts, α-sulfo fatty acid ester salts, α-olefin sulfonates, alkanesulfonates, and fatty acid salts are included. The fatty acid salt preferably has a carbon number within the above range.

In addition to these, surfactants include toluenesulfonic acid, alkenylsuccinic acid, dialkylsulfosuccinate, and the like.

[Composition, optional ingredients, etc.]
The liquid cleaning composition for hard surfaces of the present invention preferably contains 20% by mass or more, more preferably 25% by mass or more, still more preferably 30% by mass or more, and preferably 50% by mass or less of a surfactant. The content is more preferably 45% by mass or less, still more preferably 40% by mass or less.

From the viewpoint of detergency, the liquid cleaning composition for hard surfaces of the present invention contains 60% by mass or more, preferably 70% by mass or more, and more preferably 80% by mass or more of the component (A) in the surfactant. , and preferably 100% by mass or less, more preferably 98% by mass or less, and even more preferably 95% by mass or less.

In the liquid cleaning composition for hard surfaces of the present invention, the proportion of component (A1) in the total of components (A) and (B) is 0.5% by mass or more, preferably 1% by mass, from the viewpoint of drainage. % by mass or more, more preferably 2% by mass or more, and 20% by mass or less, preferably 18% by mass or less.

From the viewpoint of detergency, the liquid cleaning composition for hard surfaces of the present invention contains preferably 20% by mass or more, more preferably 25% by mass or more, and still more preferably 25% by mass or more of the components (A) and (B) in total. 30% by mass or more, preferably 60% by mass or less, more preferably 50% by mass or less, and even more preferably 45% by mass or less.

From the standpoint of detergency and foamability, the liquid cleaning composition for hard surfaces of the present invention has a mass ratio of the content of component (A) to the content of component (B) of (B)/( A) is preferably 0.01 or more, more preferably 0.05 or more, still more preferably 0.1 or more, and preferably 0.3 or less, more preferably 0.25 or less, still more preferably 0.2 It is below.

From the viewpoint of detergency and foam stability, the liquid cleaning composition for hard surfaces of the present invention preferably contains component (B) in an amount of 0.1% by mass or more, more preferably 1% by mass or more, still more preferably 2% by mass or more. % by mass or more, preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 6% by mass or less.

The liquid cleaning composition for hard surfaces of the present invention preferably contains component (A2) as component (A). From the standpoint of detergency and storage stability, the liquid cleaning composition for hard surfaces of the present invention preferably contains component (A2) in an amount of 2% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass. above, and preferably 15% by mass or less, more preferably 12% by mass or less, and even more preferably 10% by mass or less.

The liquid cleaning composition for hard surfaces of the present invention comprises, as component (A), one or more nonionic surfactants selected from components (A3) and (A4), preferably components (A3) and (A4). Ingredients are preferred. From the viewpoint of detergency, the liquid cleaning composition for hard surfaces of the present invention contains at least one nonionic surfactant selected from components (A3) and (A4), preferably components (A3) and (A4). The total amount of the components is preferably 10% by mass or more, more preferably 15% by mass or more, still more preferably 20% by mass or more, and preferably 50% by mass or less, more preferably 40% by mass or less, further preferably 35% by mass. % by mass or less, more preferably 30% by mass or less.

When the liquid cleaning composition for hard surfaces of the present invention contains components (A3) and (A4), the mass ratio of the content of component (A3) to the content of component (A4) is (A3) /(A4) is preferably 2 or more, more preferably 3 or more, still more preferably 4 or more, and preferably 7 or less, more preferably 6 or less, and still more preferably 5 or less, from the viewpoint of washability.

When the liquid cleaning composition for hard surfaces of the present invention contains one or more nonionic surfactants selected from components (A3) and (A4), preferably components (A3) and (A4), the interface In the active agent, the total ratio of the content of component (A3) and the content of component (A4) is preferably 40% by mass or more, more preferably 45% by mass or more, and still more preferably 50% by mass, from the viewpoint of detergency. % by mass or more, preferably 80% by mass or less, more preferably 75% by mass or less, and even more preferably 70% by mass or less.

In the liquid cleaning composition for hard surfaces of the present invention, the mass ratio of the content of component (A1) to the total content of components (A3) and (A4) is (A1)/[(A3 ) + (A4)] is preferably 0.01 or more, more preferably 0.015 or more, still more preferably 0.03 or more, and preferably 1 or less, more preferably 0.7, from the viewpoint of water drainage. 0.5 or less, more preferably 0.5 or less.

In the liquid cleaning composition for hard surfaces of the present invention, the ratio of component (C) in the surfactant is preferably 10% by mass or less, more preferably 4% by mass or less, and still more preferably 3% by mass, from the viewpoint of drainage. % by mass or less, more preferably 2% by mass or less. The lower limit of this ratio can be 0% by mass or more, and may be 0% by mass. That is, the liquid cleaning composition for hard surfaces of the present invention optionally contains an anionic surfactant as component (C), and the content of the anionic surfactant in the surfactant is within the above range. Preferably.

The liquid cleaning composition for hard surfaces of the present invention preferably contains water. The liquid cleaning composition for hard surfaces of the present invention is preferably in the form of a liquid composition obtained by dissolving/dispersing/emulsifying the above components in water, and more preferably in the form of an aqueous solution. As water to be used, deionized 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 pH at 25° C. of the liquid cleaning composition for hard surfaces of the present invention is preferably 4 or higher, more preferably 4.5 or higher, still more preferably 5 or higher, and preferably 10 or lower, more preferably 8. 7 or less, more preferably 7 or less. From the viewpoint of low-temperature stability, it is preferably 4 or more, more preferably 4.5 or more, and more preferably 5 or more. On the other hand, from the viewpoint of detergency, it is preferably 10 or less, more preferably 9 or less, more preferably 8 or less, more preferably 7 or less. Such pH adjustment can be performed by using an inorganic acid selected from sulfuric acid, hydrochloric acid, and phosphoric acid, an organic acid selected from citric acid, malic acid, maleic acid, fumaric acid, and succinic acid, sodium hydroxide, potassium hydroxide, and water. It is carried out using inorganic alkaline agents such as magnesium oxide, sodium carbonate, and potassium carbonate. In the present invention, it is preferable to impart a buffering capacity to the composition from the viewpoint of foamability/foam persistence, and it is preferable to use the above organic acid, preferably citric acid, together with an inorganic alkali agent. The organic acid may be incorporated into the composition in the form of sodium salt or potassium salt.

The viscosity at 20° C. of the liquid cleaning composition for hard surfaces of the present invention is preferably 5 mPa·s or more, more preferably 10 mPa·s or more, and preferably 15,000 mPa·s or less, more preferably 8,000 mPa·s or less. Further, it is 2,000 mPa·s or less, further 500 mPa·s or less, and further 300 mPa·s or less.

The liquid cleaning composition for hard surfaces of the present invention is preferably used for cleaning stains containing oils and fats derived from foods. Dirt containing oils and fats derived from food is, for example, dirt containing solid fat. Dirt containing solid fat is dirt containing fat, and this fat presents a solid state at room temperature (for example, 20° C.). The form of solid fat stains when the liquid detergent composition is brought into contact may be a state in which solid fat and liquid oil are mixed.

Dirt containing oil and fat adhering to hydrophobic hard surfaces such as polyethylene and polypropylene, for example, dirt containing solid fat (hereinafter sometimes referred to as solid greasy dirt) is difficult to remove. The detergent composition has excellent detergency against oil stains, particularly solid greasy stains, adhered to such hard articles having a hydrophobic hard surface. On the other hand, the liquid cleaning composition for hard surfaces of the present invention is excellent in drainability after cleaning hard articles, especially hard articles having hydrophilic surfaces such as glass and ceramics.

The liquid cleaning composition for hard surfaces of the present invention is preferably used for cleaning tableware and/or hard articles around the kitchen, preferably tableware.
Hard articles around the kitchen are articles used around the kitchen, specifically:
(1) refrigerators, cupboards, and other places where food, tableware, and cooking utensils are stored;
(2) food preparation areas such as drains, kitchen counters, range hoods, sinks, gas ranges, and microwave ovens; 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 such as Tupperware, bottles, etc.;
(iii) Kitchen utensils such as knives, cutting boards, pots, frying pans, fish grills, etc.
(iv) Components and equipment 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.
In addition, the liquid detergent composition for hard surfaces of the present invention is preferably intended for articles selected from tableware, storage containers, cooking utensils, and cooking appliances, and furthermore, dishes, bowls, tappers, bottles, kitchen knives, and cutting boards. , pots, pans, fish grills, food processors, and mixers.

Materials of tableware and/or hard articles around the kitchen, which are targeted for the liquid cleaning composition for hard surfaces of the present invention, include plastics (including silicone resins, etc.), metals, pottery, wood, and combinations thereof. . The liquid cleaning composition for hard surfaces of the present invention can be used to remove stains containing fats and oils adhered to the tableware and/or hard articles around the kitchen (hereinafter sometimes referred to as fat stains), such as oils and fats derived from foods. can effectively clean stains containing and even solid oil stains.

Grease stains, such as solid grease stains, attached to hydrophobic materials such as plastics are stains that are difficult to remove. Also shows excellent cleaning effect against The detergent composition of the present invention is suitable as a liquid detergent composition for plastic tableware and/or hard articles around the kitchen. Examples of plastics include polyolefins such as polypropylene and polyethylene, polymethacrylate, polycarbonate, ABS resin, and polyethylene terephthalate.

According to the present invention, there is provided a method for cleaning hard articles, comprising hand-washing hard articles with a cleaning liquid using the liquid cleaning composition for hard surfaces of the present invention, followed by rinsing with water.
The hard articles are preferably tableware and/or hard articles around the kitchen, more preferably tableware. These include those mentioned above.

The cleaning solution used for hand-washing is obtained using the liquid cleaning composition for hard surfaces of the present invention, and the undiluted solution of the composition or the diluted solution containing water is used. As a specific hand-washing method, a flexible material to which the washing liquid using the liquid detergent composition for hard surfaces of the present invention is applied is hand-washed to hard articles such as tableware, and then rinsed with water. and a method for cleaning hard articles. For example, the composition of the present invention is adhered to a flexible material such as a sponge containing water to hold the cleaning liquid, and the material is rubbed several times with hands to lather and scrub hard articles such as tableware. The concentration of the surfactant in the cleaning liquid retained by the flexible material is preferably 1,000 ppm or more, more preferably 2,000 ppm or more, and preferably 70,000 ppm or less, from the viewpoint of high foamability and foam persistence. , further 50,000 ppm or less, further 30,000 ppm or less. After washing is completed, water is added for rinsing. For example, in the present invention, 3.3 to 133 parts by weight of rinsing water per 1 part by weight of the composition diluted to the washing concentration sufficiently removes bubbles and facilitates rinsing. can be completed in The amount of this rinsing water is about 2/3 to 1/10 of that in the case of using a conventional detergent composition for hand washing. Here, 1 part by mass of the composition indicates the concentration of the pure composition, and the above description of the amount of rinsing water refers to the amount of the hard surface liquid used to prepare the cleaning liquid, regardless of the diluted concentration. This indicates that foams can be sufficiently eliminated with 3.3 to 133 parts by mass of rinsing water per 1 part by mass of pure detergent composition.

Further, as another specific hand-washing method, a hard article such as tableware is immersed in a cleaning liquid obtained by diluting the liquid cleaning composition for hard surfaces of the present invention with water, and then a flexible material such as a sponge is used to wash the hard article. a method for washing hard articles such as tableware by hand-washing with water and then rinsing with water. The time for immersing hard articles such as tableware is preferably 1 minute or longer, more preferably 3 minutes or longer, still more preferably 5 minutes or longer, even more preferably 10 minutes or longer, and most preferably 30 minutes or longer, from the viewpoint of improving washability. It is preferably 24 hours or less, more preferably 12 hours or less, still more preferably 6 hours or less, even more preferably 3 hours or less, and even more preferably 1 hour or less. The concentration of the surfactant in the cleaning liquid in which hard articles such as tableware are immersed is preferably 100 ppm or more, further 200 ppm or more, and preferably 7,000 ppm or less, further 5,000 ppm or less, and further 3,000 ppm or less. is preferred from the viewpoint of high foamability and foam persistence. After washing is completed, water is added for rinsing. For example, in the present invention, 3.3 to 133 parts by mass of rinsing water is sufficient for 1 part by mass of the liquid cleaning composition for hard surfaces used to prepare the cleaning solution. Foam disappears and rinsing can be completed quickly.

<Method for improving drainage>
The present inventors have found that the (A1) component is a hard surface cleaning composition containing a nonionic surfactant such as the (A2) component, the (A3) component, and the (A4) component as a water drainage improver. Found that it works. By using the component (A1), the drainage of hard articles treated with a liquid cleaning composition for hard surfaces containing a nonionic surfactant such as the component (A2), the component (A3), and the component (A4) can be improved. dramatically improved.
Accordingly, the present invention provides a method for improving drainage of a surfactant-containing liquid cleaning composition for hard surfaces, comprising:
Component (A) and optionally component (B) are contained as surfactants in the liquid cleaning composition for hard surfaces, and the proportion of component (A) in the surfactant is 60% by mass or more,
The liquid cleaning composition for hard surfaces contains the component (A1) as the component (A), and the proportion of the component (A1) in the total of the components (A) and (B) is 0.5% by mass. 20% by mass or less,
Provided is a method for improving the drainability of a liquid cleaning composition for hard surfaces.
Components (A), (A1), and (B) are the same as the liquid cleaning composition for hard surfaces of the present invention, and specific examples and preferred embodiments of each are also the same as those for hard surfaces of the present invention. It is the same as the liquid detergent composition. In addition, the items described for the liquid cleaning composition for hard surfaces of the present invention can be appropriately applied to this method for improving drainage.

A hard surface liquid detergent composition shown in Table 1 was prepared using the following ingredients, and the detergency was evaluated by the following method. Table 1 shows the results.

<Ingredients>
(A1) Component A1-1: N-lauryl-N,N-diethanolamine, Amit 102, Kao Corporation A1-2: Polyoxyethylene (2.1) Cured beef tallow amine, Amit 302, Kao Corporation, carbon A polyoxyethylene alkylamine having an alkyl group having a number of 16 to 18 and an average number of added moles of oxyethylene groups of 2.1, in the general formula (a1), R ^1a is an alkyl group having 16 to 18 carbon atoms, 2.1 compounds

(A2)
・A2-1: N-dodecyl-N,N-dimethylamine oxide, Amphithol 20N, Kao Corporation ・A2-2: N-myristyl-N,N-dimethylamine oxide, Amphithol 40N, Kao Corporation

(A3) Component A3-1: Alkyl (12-16 carbon atoms) polyglucoside (average degree of sugar condensation 1-2), AG-124, Kao Corporation

(A4) Component A4-1: 2-ethylhexyl glyceryl ether, Penetol GE-EH, Kao Corporation

(B) Component B-1: N-dodecyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)sulfobetaine, Amphithol 20HD, Kao Corporation

(C) Component C-1: Sodium alkyl ether sulfate (trade name Emal P-170J, manufactured by Kao Corporation, average number of added moles of propyleneoxy groups: 0.6)
・ C-2: dodecylbenzenesulfonic acid

<Evaluation method for detergency>
(Preparing the model dirty dish)
A model stain was prepared by coloring beef tallow with a coloring agent. 0.5 g of model soil was spread on a polypropylene dish and allowed to stand overnight. In the same way, a plurality of plates with model stains were prepared.
(Detergency evaluation method)
A new commercially available high-density urethane sponge (Kikuron Co., Ltd.) was impregnated with 1 g of the liquid detergent composition for hard surfaces and 30 g of tap water to create a sufficiently foamy state, and then rubbed 10 times with the sponge to clean the model stain dish. was washed. After 10 scrubbings, the plate was held under running water to rinse off any suds and loose dirt. When the rinsed dish was visually inspected and no colored model soil was observed, the dish was counted as clean. Next, after rubbing the sponge on the dish to be washed, the next model dirty dish was washed in the same way. This operation was repeated, and the number of dishes that could be washed was defined as the detergency of the composition.
Evaluation was performed twice by one expert panelist, and the average value was obtained. The higher the value, the better the detergency.

<Drainability>
A new commercially available high-density urethane sponge (Kikuron Co., Ltd.) was impregnated with 1 g of the liquid detergent composition for hard surfaces and 30 g of tap water to create a sufficiently foamy state, and then rubbed with the sponge 5 times to remove stains. Cleaned the crockery. After rubbing 5 times, the dish was held under running water to rinse off the foam, immersed in colored water for 1 minute, taken out and left to stand vertically to measure the time until the water was completely drained. Drainage was completed when the colored water was completely removed from the plate by visual inspection.
A: Drainage is completed within 10 seconds after standing.
◯: Drainage is completed within more than 10 seconds and within 30 seconds after standing.
Δ: Drainage is completed within 3 minutes exceeding 30 seconds after standing.
x: Drainage is completed in more than 3 minutes after standing.

Claims (3)

A liquid cleaning composition for hard surfaces containing a surfactant,
The surfactant contains (A) a nonionic surfactant [hereinafter referred to as component (A)] and (B) an amphoteric surfactant [hereinafter referred to as component (B)]. ) component ratio is 60% by mass or more,
(B) contains 1% by mass or more and 10% by mass or less of the component in the composition,
As the component (A), (A1) an alkyl mono- or dialkanolamine having an alkyl group having 10 or more and 18 or less carbon atoms and an alkanol group having 2 or 3 carbon atoms or an alkylene oxide adduct thereof (a carbon atom of an alkylene oxide number is 2 or 3) [hereinafter referred to as (A1) component],
As components (A), (A2) an amine oxide surfactant (hereinafter referred to as component (A2)), (A3) an alkyl glycoside surfactant (hereinafter referred to as component (A3)), and (A4) glyceryl ether containing one or more selected from type surfactants (hereinafter referred to as (A4) component),
Component (A) contains components (A3) and (A4), and the total content of components (A3) and (A4) is 10% by mass or more and 40% by mass or less in the composition, and (A3) (A3) / (A4), which is the mass ratio of the content of the component and the content of the (A4) component, is 2 or more and 7 or less,
The proportion of component (A1) in the total of component (A) and component (B) is 0.5% by mass or more and 20% by mass or less.
A liquid cleaning composition for hard surfaces. 2. The liquid cleaning composition for hard surfaces according to claim 1 , which optionally contains (C) an anionic surfactant as a surfactant, and the proportion of (C) in the surfactant is 10% by mass or less. . The liquid detergent composition for hard surfaces according to claim 1 or 2 , which is for dishwashing.