Detergent composition for hand dishwashing

Abstract

To provide a detergent composition for tableware handwashing that gives the tableware having been rinsed and dried a sufficient friction feeling, enabling the tableware held by hand to be not slippery.SOLUTION: A detergent composition for tableware handwashing includes component (A): an anionic surfactant, component (B): an amine oxide surfactant, and component (C): a nonionic surfactant including (C1) component represented by the formula (c1) and (C2) component represented by formula (c2) or (c3), with the ratio [(A) / (B)] of 0.4-0.8, the ratio [(A) / (C)] of 0.5-2.3, and the ratio [(C1) / (C2)] of 0.4-2.7.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a detergent composition for hand dishwashing. [Background technology]

[0002] In recent years, due to changes in consumers' lifestyles, speed has become an important factor in dishwashing, especially in hand-washing. In the behavior of hand washing dishes, an important factor that contributes to "speed" is "less slimy feeling" during dishwashing and rinsing. Various studies have been conducted on dishwashing detergent compositions to reduce the slimy feeling.

[0003] Patent Document 1 discloses a dishwashing detergent composition that combines an anionic surfactant, an amine oxide, a propylene oxide adduct of alcohol, and a nonionic surfactant, thereby providing excellent detergency and further reducing sliminess even when an excessively large amount of the dishwashing detergent composition is accidentally used. Patent Document 2 discloses a dishwashing detergent composition that combines a nonionic surfactant, an anionic surfactant, and a polyglycoside to reduce slipperiness during washing or rinsing, thereby preventing dishes from slipping off hands during washing. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2020-84054 [Patent Document 2] Japanese Patent Application Publication No. 2017-190421 Summary of the Invention [Problem to be solved by the invention]

[0005] The risk of dropping hand-washed dishes occurs not only during washing or rinsing, but also when handling dishes that have been dried after rinsing. To prevent dried dishes from dropping, it is necessary to have sufficient friction between the fingers and the dishes, so that the dishes are not slippery when held in the hand.

[0006] However, although the dishwashing detergent compositions of Patent Documents 1 and 2 can reduce sliminess during washing or rinsing, they do not provide a sufficient feeling of friction between the dishes and fingers after drying. In view of the above circumstances, the present invention aims to provide a detergent composition for hand-washing tableware that can impart a sufficient frictional feel to tableware after rinsing and drying, making the tableware less slippery when held in the hand. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention employs the following configuration. Component (A): an anionic surfactant; (B) component: an amine oxide surfactant; (C) component: a nonionic surfactant consisting of (C1) component and (C2) component, The component (C1) is one or more selected from components represented by the following formula (c1): The component (C2) is at least one selected from the group consisting of a component represented by the following formula (c2) and a component represented by the following formula (c3): the ratio of the mass of the component (A) to the mass of the component (B) [(A) / (B)] is 0.4 to 0.8; the ratio of the mass of the component (A) to the mass of the component (C) [(A) / (C)] is 0.5 to 2.3; A detergent composition for hand dishwashing, wherein the ratio of the mass of the component (C1) to the mass of the component (C2) [(C1) / (C2)] is 0.4 to 2.7.

[0008] [ka]

[0009] In formula (c1), A 1 O represents an oxyethylene group or an oxypropylene group. 1 represents the average number of repeats of O, and is a number between 8 and 12. x and y are integers between 1 and 6, and 6≦x+y≦12. m A 1 O may be the same or different from each other. In formula (c2), A 2 O represents an oxyethylene group or an oxypropylene group. m2 represents A 2 represents the average repeating number of O and is a number of 3 to 5. R is a linear hydrocarbon group having 12 to 18 carbon atoms. m2 A 2 O may be the same or different from each other. In formula (c3), A 3 O represents an oxyethylene group or an oxypropylene group. m3 represents A 3 represents the average number of repeating O and is a number between 3 and 5. z is an integer between 9 and 15. m represents 3 A 3 O may be the same or different from each other. [Effects of the Invention]

[0010] The detergent composition for hand dishwashing of the present invention can impart a sufficient frictional feel to dishes after rinsing and drying, making the dishes less slippery when held in the hand. DETAILED DESCRIPTION OF THE INVENTION

[0011] The detergent composition for hand dishwashing of the present invention (hereinafter sometimes simply referred to as "detergent composition") is a detergent composition containing components (A), (B), and (C) described below. The following description of the components may be based on representative embodiments or specific examples, but the present invention is not limited to such embodiments.

[0012] In this specification, a numerical range expressed using "to" means a range that includes the numerical values ​​before and after "to" as the lower and upper limits. The content of each component is the content of the pure component, excluding solvents, etc.

[0013] <Component (A)> Component (A) is an anionic surfactant. It is believed that component (A) forms a complex with component (B), an amine oxide surfactant, which reduces sliminess and contributes to imparting a frictional feel to dishes after rinsing and drying.

[0014] The component (A) is preferably any one of an anionic surfactant represented by the following formula (1), an alkane sulfonate, and a linear alkylbenzene sulfonate, with the anionic surfactant represented by the following formula (1) being particularly preferred.

[0015] R 1 -O-(EO) n -SO3 - M + ···(1) In formula (1), R 1 is a linear alkyl group having 8 to 18 carbon atoms, and the carbon atom bonded to the oxygen atom is the primary carbon atom; EO is an ethyleneoxy group; n represents the average number of moles of EO added; and 0 is an ethyleneoxy group. <n≦4である。M + is a cation other than a hydrogen ion.

[0016] R 1 The number of carbon atoms in R is preferably 10 to 14, and more preferably 12 to 14. 1 is preferably an alkyl group derived from a fat or oil raw material. A particularly preferred component (A) is polyoxyethylene (1) linear alkyl (C12 / 14=75 / 25; derived from natural fats and oils) sulfate sodium salt.

[0017] The content of component (A) is preferably 1 to 10 mass %, more preferably 4 to 6 mass %, and particularly preferably 5 mass %, based on the total mass of the detergent composition. When the content of component (A) is within the above range, a frictional feel can be imparted to the tableware after rinsing and drying. The component (A) may be used alone or in appropriate combination of two or more types.

[0018] <(B) component> Component (B) is an amine oxide surfactant. It is believed that component (B) forms a complex with the anionic surfactant component (A), thereby reducing sliminess and contributing to the frictional feel of dishes after rinsing and drying.

[0019] The component (B) is preferably an amine oxide surfactant represented by formula (2). R 2 -(A)pN(-R 3 )(-R 4 ) → O (2) In formula (2), R 2 R represents a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms. 3 and R 4 Each of the groups independently represents an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms. A is -C=O(-NH-R 5 )- and R 5 represents an alkylene group having 1 to 4 carbon atoms, and p is an integer of 0 to 1.

[0020] In equation (2), R 2 The number of carbon atoms in R is preferably 10 to 14, and more preferably 12 to 14. 2 is preferably an alkyl group derived from a fat or oil raw material. R 3 and R 4 are each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, preferably an alkyl group having 1 to 3 carbon atoms, more preferably a methyl group; R 3 and R 4 and are more preferably all methyl groups. p is preferably 0. A particularly preferred component (B) is lauryl dimethylamine oxide.

[0021] The content of component (B) is preferably 6 to 12 mass %, more preferably 8 to 12 mass %, and particularly preferably 12 mass %, based on the total mass of the detergent composition. When the content of component (A) is within the above range, a frictional feel can be imparted to the tableware after rinsing and drying. The component (B) may be used alone or in appropriate combination of two or more types.

[0022] <(C) component> Component (C) is a nonionic surfactant consisting of components (C1) and (C2), which will be described later. By adding an appropriate amount of component (C), it is possible to suppress sliminess and impart a frictional feel to tableware after rinsing and drying.

[0023] The component (C1) is selected from components represented by the following formula (c1): The component (C1) may be used alone or in appropriate combination of two or more types.

[0024] [ka]

[0025] In formula (c1), A 1 O represents an oxyethylene group or an oxypropylene group. 1 represents the average number of repeats of O, and is a number between 8 and 12. x and y are integers between 1 and 6, and 6≦x+y≦12. m A 1 O may be the same or different from each other.

[0026] A 1 O is preferably an oxyethylene group. m1 is preferably an integer of 6 to 12, with 10 being particularly preferred. Preferably, x and y are each independently 3 to 5. x+y is preferably 6 to 10, and more preferably 8. Preferably, x and y are a combination of x=3 and y=5, or a combination of x=5 and y=3. A particularly preferred component (C1) is Guerbet alcohol ethoxylate (XP100) where x=5 and y=3.

[0027] The content of component (C1) is preferably 0.6 to 8 mass %, more preferably 1.2 to 5.5 mass %, and particularly preferably 2.4 to 4 mass %, based on the total mass of the detergent composition. When the content of component (C1) is within the above range, a frictional feel can be imparted to the tableware after rinsing and drying.

[0028] The component (C2) is selected from components represented by the following formula (c2) and components represented by the following formula (c3): The component (C2) may be used alone or in appropriate combination of two or more types.

[0029] [ka]

[0030] In formula (c2), A 2 O represents an oxyethylene group or an oxypropylene group. m2 represents A 2 represents the average repeating number of O and is a number of 3 to 5. R is a linear hydrocarbon group having 12 to 18 carbon atoms. m2 A 2 O may be the same or different from each other. A 2 O is preferably an oxyethylene group. It is particularly preferred that R has 12 carbon atoms.

[0031] [ka]

[0032] In formula (c3), A 3 O represents an oxyethylene group or an oxypropylene group. m3 represents A 3 represents the average number of repeating O and is a number between 3 and 5. z is an integer between 9 and 15. m represents 3 A 3 O may be the same or different from each other. A 3 O is preferably an oxyethylene group. m3 is preferably 5. z is preferably 10.

[0033] The component (C2) is preferably a component represented by formula (c3). A particularly preferred (C2) component is an oxoalcohol ethoxylate (TO5) having 13 carbon atoms.

[0034] The content of component (C2) is preferably 1.6 to 8 mass %, more preferably 3.2 to 8 mass %, and particularly preferably 6.4 to 8 mass %, based on the total mass of the detergent composition. When the content of component (C2) is within the above range, a frictional feel can be imparted to the tableware after rinsing and drying.

[0035] The total content of component (C) (the total content of components (C1) and (C2)) is preferably 2 to 11 mass %, more preferably 4 to 11 mass %, and particularly preferably 9 to 11 mass %, based on the total mass of the detergent composition. When the total content of component (C) is within the above range, a frictional feel can be imparted to the tableware after rinsing and drying.

[0036] The ratio of the mass of the component (C1) to the mass of the component (C2) [(C1) / (C2)] is 0.4 to 2.7, preferably 0.4 to 1.0, and more preferably 0.4 to 0.6. By setting the ratio [(C1) / (C2)] to 0.4 to 2.7, it is possible to impart a frictional feel to the tableware after rinsing and drying.

[0037] The ratio of the mass of the component (A) to the mass of the component (B) [(A) / (B)] is 0.4 to 0.8, more preferably 0.4 to 0.6, and even more preferably 0.4 to 0.5. By setting the ratio [(A) / (B)] to 0.4 to 0.8, it is possible to impart a frictional feel to the tableware after rinsing and drying.

[0038] The ratio of the mass of the component (A) to the mass of the component (C) [(A) / (C)] is 0.5 to 2.3, more preferably 0.5 to 1.1, and even more preferably 0.5 to 0.6. By setting the ratio [(A) / (C)] to 0.5 to 2.3, it is possible to impart a frictional feel to the tableware after rinsing and drying.

[0039] <Other surfactants> The detergent composition of the present invention may contain other surfactants (surfactants other than components (A), (B), and (C)) that are commonly used in kitchen detergents, depending on the purpose, as long as the effects of the present invention are not impaired. Examples of other surfactants include amphoteric surfactants, cationic surfactants, and nonionic surfactants other than component (C).

[0040] The amphoteric surfactant is not particularly limited and known surfactants can be used, including those selected from the group consisting of carboxylate-type surfactants, sulfate-type surfactants, sulfonate-type surfactants, and phosphate-type surfactants. Specific examples of carboxylate-type surfactants include betaine-type amphoteric surfactants such as lauryl dimethyl aminoacetic acid betaine, coconut alkyl dimethyl aminoacetic acid betaine, coconut oil fatty acid amidopropyl betaine, lauric acid amidopropyl dimethyl aminoacetic acid betaine, and coconut alkyl amidopropyl dimethyl aminoacetic acid betaine.

[0041] The cationic surfactant is not particularly limited, and known surfactants can be used. Specific examples include didecyl dimethyl ammonium chloride, didecyl dimethyl ammonium methosulfate, distearyl dimethyl ammonium chloride, dioctyl dimethyl ammonium chloride, distearyl dihydroxyethyl ammonium chloride, di-tallow alkyl dimethyl ammonium chloride, di(stearoyloxyethyl) dimethyl ammonium chloride, di(oleoyloxyethyl) dimethyl ammonium chloride, di(palmitoyloxyethyl) dimethyl ammonium methosulfate, di(stearoyloxyisopropyl) dimethyl ammonium chloride, di(oleoyloxyisopropyl) dimethyl ammonium chloride, di(oleoyloxybutyl) dimethyl ammonium chloride, di(stearoyloxyethyl) methyl hydroxyethyl ammonium methosulfate, and tri(stearoyloxyethyl) methyl methosulfate. The "tallow alkyl" group has 14 to 18 carbon atoms.

[0042] Examples of nonionic surfactants other than component (C) include polyoxyalkylene alkyl ethers and alkyl polyglycosides. The proportion by mass of the component (C) relative to the total mass of the nonionic surfactant is preferably 50 to 100 mass %, more preferably 80 to 100 mass %, and particularly preferably 100 mass %.

[0043] The ratio of the total mass of components (A), (B), and (C) to the total mass of the surfactant is preferably 50 to 100 mass%, more preferably 80 to 100 mass%, and particularly preferably 100 mass%.

[0044] <Hydrotropic Agent> The detergent composition of the present invention may contain a hydrotrope. Examples of the hydrotrope include monohydric alcohols having 2 to 4 carbon atoms, glyceryl ethers having 4 to 10 carbon atoms, toluenesulfonic acid, toluenesulfonate, cumenesulfonic acid, cumenesulfonate, benzoic acid, and benzoate. The hydrotrope may be used alone or in combination of two or more kinds.

[0045] Examples of the monohydric alcohol having 2 to 4 carbon atoms include ethanol, n-propanol, isopropanol, normal butanol, secondary butanol, and tertiary butanol. Examples of the glyceryl ether having 4 to 10 carbon atoms include glycerin and hexyl glyceryl ether.

[0046] From the viewpoints of dissolution effect and feeling in use, ethanol, paratoluenesulfonate, or a combination thereof is preferable as the hydrotrope. The content of the hydrotrope is preferably 1 to 30% by mass based on the total amount of the detergent composition, and more preferably 1 to 20% by mass.

[0047] <Preservative> The detergent composition of the present invention may contain a preservative. Examples of the preservative include isothiazolin-based preservatives such as benzisothiazolinone, methylisothiazolinone, butylbenzisothiazolinone, chloromethylisothiazolinone, octylisothiazolinone, and dichlorooctylisothiazolinone. The preservative may be used alone or in combination of two or more kinds. As the preservative, 1,2-benzisothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, or a combination thereof is preferable.

[0048] <pH adjuster> The detergent composition of the present invention may contain a pH adjuster for adjusting the pH. Examples of pH adjusters include sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, monoethanolamine, diethanolamine, triethanolamine, N-methylpropanol, 2-amino-2-methyl-1-propanol, N-(β-aminoethyl)ethanolamine, diethylenetriamine, morpholine, N-ethylmorpholine, hydrochloric acid, sulfuric acid, citric acid, and oxalic acid. Among these, potassium hydroxide, sodium hydroxide, sulfuric acid, and citric acid are preferred in terms of the storage stability and cost of the detergent composition. The pH adjusters may be used alone or in appropriate combination of two or more.

[0049] <Other ingredients> The detergent composition of the present invention may contain, as optional components, inorganic builders such as magnesium sulfate, zinc sulfate, and zinc oxide; fragrances, colorants, radical trapping agents, and the like.

[0050] <ph> The pH (25°C) of the detergent composition is preferably 6 to 8. When the pH of the detergent composition is within the above range, the complex formation between components (A) and (B) proceeds sufficiently, and the frictional feel of the tableware after rinsing and drying increases. In this specification, the pH (25°C) of a detergent composition refers to a value measured by a method in accordance with JIS Z 8802:1984 "pH measurement method."

[0051] <Manufacturing method> The cleaning composition of the present invention can be produced according to a method for producing a cleaning composition known in the art, for example, by dissolving components (A), (B), and (C), and optional components, if necessary, in a portion of water, adjusting the pH with a pH adjuster if necessary, and then adding the remaining water.

[0052] <How to use> The detergent composition of the present invention can be used for hand washing of tableware. The "tableware" to be cleaned with the detergent composition of the present invention includes utensils used directly for eating, such as plates, chopsticks, and spoons, as well as cooking utensils, such as pots and knives.

[0053] Methods for hand-washing dishes include a method in which a desired amount of the detergent composition is applied to a cleaning tool, and the cleaning tool is used to scrub the object to be cleaned (scrubbing operation), followed by rinsing; a method in which the detergent composition is dispersed in water to prepare a cleaning liquid, and the object to be cleaned is immersed in the cleaning liquid for a desired period of time (immersion operation), followed by rinsing; or a combination of these methods.

[0054] Suitable cleaning tools for scrubbing include flexible materials such as sponges, scrubbing brushes, brushes, etc. The amount of detergent composition applied to the cleaning tool can be, for example, 1 to 10 g. The detergent composition to be applied to the cleaning tool may be a cleaning liquid that has been diluted with water in advance.

[0055] When the immersion operation is performed, the content of the detergent composition relative to the total amount of the cleaning liquid is, for example, preferably 0.01 to 50 mass% (i.e., 2 to 10,000 times diluted), more preferably 0.05 to 20 mass%, and even more preferably 0.1 to 5 mass%. The immersion time in the immersion operation is determined taking into consideration the degree of soiling of the object to be washed, and is, for example, preferably 5 minutes or more, more preferably 5 minutes to 10 hours, and even more preferably 15 minutes to 1 hour. If the immersion time is equal to or greater than the above lower limit, the detergency can be further improved. If the immersion time is equal to or less than the above upper limit, the washing time for the dishes can be prevented from being excessively long. During the immersion operation, the object to be cleaned may be scrubbed in the cleaning solution with a cleaning tool, if necessary.

[0056] After the scrubbing or immersion operation, the object to be cleaned is rinsed with rinsing water to wash away the detergent composition adhering to the object to be cleaned (rinsing operation), and then dried. Drying may be carried out by wiping off the moisture with a cloth or the like, or by allowing it to dry naturally. After drying, the tableware has sufficient friction between the fingers and the hands, making it difficult for the tableware to slip out of the hands, allowing for safe and quick transfer to a cupboard, etc. [Example]

[0057] The present invention will be described in detail below with reference to examples, but the present invention is not limited to the following description. The raw materials used in this example are as shown in the <Raw Materials Used> below.

[0058] <Raw materials used> [Component (A)] a-1: AES (1EO), sodium polyoxyethylene alkyl ether sulfate prepared in Preparation Example 1 below, R in the formula (1) 1 is a linear alkyl group having 12 to 14 carbon atoms, n is 1, M + A compound in which the element is sodium.

[0059] (Preparation Example 1) A 4-liter autoclave was charged with 400 g of P&G's CO1270 alcohol (C12 / C14 = 75 / 25, mass ratio) as the raw material alcohol and 0.8 g of potassium hydroxide catalyst as the reaction catalyst. The atmosphere inside the autoclave was replaced with nitrogen, and the temperature was raised while stirring. "C12" means alcohol with 12 carbon atoms, "C14" means alcohol with 14 carbon atoms, and "C12 / C14" means the ratio of alcohol with 12 carbon atoms to alcohol with 14 carbon atoms.

[0060] Subsequently, 91 g of ethylene oxide was introduced and reacted while maintaining the temperature at 180°C and the pressure at 0.3 MPa or less. The average number of moles of ethylene oxide added to the resulting polyoxyalkylene ether was 1. Next, 237 g of the alcohol ethoxylate thus obtained was placed in a 500 mL flask equipped with a stirrer, and after purging with nitrogen, 96 g of liquid sulfuric anhydride (sulfan) was slowly added dropwise while maintaining the reaction temperature at 40°C. After the addition was completed, stirring was continued for 1 hour (sulfation reaction), and polyoxyethylene alkyl ether sulfate was obtained. This was then neutralized with aqueous sodium hydroxide solution to obtain a-1.

[0061] a-2: SAS, secondary sodium alkanesulfonate having 14 to 17 carbon atoms, "HOSTAPUR (registered trademark) SAS30A" manufactured by Clariant Japan Co., Ltd. a-3: LAS, linear alkylbenzenesulfonate sodium salt having 10 to 14 carbon atoms, "Teika Power (registered trademark) L121" manufactured by Teika, neutralized with sodium hydroxide.

[0062] [(B) Component] b-1:AX, lauryl dimethylamine oxide, "Cadenax (registered trademark) DM12D-W" manufactured by Lion Specialty Chemicals.

[0063] [(C) component] c-1: XP-100, C10 Guerbet alcohol ethoxylate (EO:10), A in the formula (c1) 1 A compound in which O is an oxyethylene group, m1 is 10, x is 5, y is 3, and HLB is 15.0, "Lutensol (registered trademark) XP-100" manufactured by BASF.

[0064] c-2: TO-5, C13 oxoalcohol ethoxylate (EO:5), A in the formula (c3) 3 A compound in which O is an oxyethylene group, m3 is 5, z is 10, and HLB is 10.5, "Lutensol (registered trademark) TO-5" manufactured by BASF.

[0065] c-3: EMALEX705, polyoxyethylene lauryl ether (EO:5), R in the formula (c2) is a linear hydrocarbon group having 12 carbon atoms, A 2 A compound in which O is an oxyethylene group, m2 is 5, and HLB is 10.0, "EMALEX (registered trademark) 705" manufactured by Nippon Emulsion Co., Ltd.

[0066] c-4: EMALEX 1805, polyoxyethylene isoalcohol ether (EO:5), A in the formula (c3) 3 A compound in which O is an oxyethylene group, m3 is 5, z is 15, and HLB is 8.0, "EMALEX (registered trademark) 1805" manufactured by Nippon Emulsion Co., Ltd.

[0067] c-5: EMALEX703, polyoxyethylene lauryl ether (EO:3), R in the formula (c2) is a linear hydrocarbon group having 12 carbon atoms, A 2 A compound in which O is an oxyethylene group, m2 is 3, and HLB is 8.0, "EMALEX (registered trademark) 703" manufactured by Nippon Emulsion Co., Ltd.

[0068] [Component (CX): Nonionic surfactant other than component (C)] cx-1: XL-140, C10 Guerbet alcohol alkoxylate (EO:14), A in the formula (c1) 1 A compound in which O is an oxyethylene group, m1 is 14, x is 5, y is 3, and HLB is 16.0, "Lutensol (registered trademark) XL-140" manufactured by BASF.

[0069] cx-2: XP-70, C10 Guerbet alcohol alkoxylate (EO:7), A in the formula (c1) 1 A compound in which O is an oxyethylene group, m1 is 7, x is 5, y is 3, and HLB is 13.0, "Lutensol (registered trademark) XP-70" manufactured by BASF.

[0070] cx-3: TO-2, C13 oxoalcohol ethoxylate (EO:2), A in the formula (c3) 3 A compound in which O is an oxyethylene group, m3 is 2, z is 10, and HLB is 7.0, "Lutensol (registered trademark) TO-2" manufactured by BASF.

[0071] [(D) Ingredient: Other] d-1: Ethanol, manufactured by Nippon Alcohol Sales. d-2: Sodium paratoluenesulfonate, manufactured by Kanto Chemical. d-3: MIT, 2-methyl-4-isothiazolin-3-one (Rohm and Haas "Neolon (registered trademark) M-10"). d-4: Citric acid, manufactured by Fuso Chemical Co., Ltd., trade name "Citric acid (anhydrous)".

[0072] <Examples 1 to 18 and Comparative Examples 1 to 15> Each example of the cleaning composition was prepared by dissolving each component and a pH adjuster in water according to the formulation (unit: mass %) in Tables 1 to 4. In each table, all components are calculated as pure components, and components left blank or unlisted are not included (amount added: 0 mass %).

[0073] Specifically, a portion of the water and component (A), component (B), component (C), or component (CX) were placed in a 1 L beaker such that the combined mass of water and component (A), component (B), component (C), or component (CX) was approximately 60 mass% of the total mass of the detergent composition. After thorough stirring with a magnetic stirrer (product name: F-606N, manufactured by Fine), component (D) was added and further stirred thoroughly to mix, and then an appropriate amount of pH adjuster was added as needed to adjust the pH at 25°C to a range of 6 to 8. Water was then added to make the total amount 100% by mass, and further stirring was carried out to obtain the cleaning composition of each example.

[0074] The pH was measured at 25°C using a glass electrode pH meter (HM-30G, manufactured by DKK-TOA Corporation) by immersing the glass electrode directly in the cleaning composition and measuring the value after 1 minute in accordance with JIS Z 8802:1984 "pH measurement method." The frictional feel of the tableware washed with the detergent composition obtained in each example was evaluated by the following evaluation method. The results are shown in Tables 1 to 4.

[0075] <Evaluation of the friction of tableware> 38 g of tap water and 2 g of each detergent composition were placed in a dishwashing sponge (trade name: Scotch-Brite, manufactured by Sumitomo 3M) measuring 11.5 cm in length, 7.5 cm in width, and 3 cm in height, and the sponge was rubbed five times by hand. A rice bowl measuring 12 cm in diameter and 5.0 cm in height was scrubbed 10 times, rinsed for 5 seconds with running water at a flow rate of 100 mL / sec, and allowed to air dry. After 15 minutes, the feel of the dish when touched by hand was evaluated according to the following criteria.

[0076] [Evaluation criteria] ◎◎: There is a great deal of friction, the plate adheres firmly to your fingers, and there is no slipping at all. ◎: There is a sense of friction, the plate adheres tightly to your fingers, and it does not slip. 〇: There is a slight friction, the plate adheres tightly to your fingers, and it is not slippery. ×: There is no sense of friction, the plate does not stick to the fingers, and they slip.

[0077] [Table 1]

[0078] [Table 2]

[0079] [Table 3]

[0080] [Table 4]

[0081] As shown in Tables 1 and 2, all of the detergent compositions of Examples 1 to 18 were able to provide a sufficient frictional feel to the tableware after rinsing and drying. In contrast, as shown in Tables 3 and 4, none of the detergent compositions of Comparative Examples 1 to 15 were able to provide a sufficient frictional feel to the tableware after rinsing and drying.< / ph>

Claims

1. Component (A): one or more anionic surfactants selected from anionic surfactants represented by the following formula (1), alkanesulfonates, and linear alkylbenzenesulfonates; (B) component: an amine oxide surfactant; Component (C): a nonionic surfactant consisting of components (C1) and (C2), and water, The component (C1) is one or more selected from components represented by the following formula (c1): The component (C2) is at least one selected from the group consisting of a component represented by the following formula (c2) and a component represented by the following formula (c3): the content of the component (A) is 4 to 6% by mass relative to the total mass of the detergent composition for hand dishwashing, the content of the component (B) is 6 to 12% by mass relative to the total mass of the detergent composition for hand dishwashing, the content of the component (C1) is 0.6 to 8% by mass relative to the total mass of the detergent composition for hand dishwashing, the content of the component (C2) is 1.6 to 8% by mass relative to the total mass of the detergent composition for hand dishwashing, the ratio of the mass of the component (A) to the mass of the component (B) [(A) / (B)] is 0.4 to 0.8; the ratio of the mass of the component (A) to the mass of the component (C) [(A) / (C)] is 0.5 to 2.3; A detergent composition for hand dishwashing, wherein the ratio of the mass of the component (C1) to the mass of the component (C2) [(C1) / (C2)] is 0.4 to 2.

7. 【Chemistry 1】 [In formula (1), R 1 is a linear alkyl group having 10 to 14 carbon atoms, and the carbon atom bonded to the oxygen atom is the primary carbon atom. EO is an ethyleneoxy group, and n represents the average number of moles of EO added, where 0<n≦4. M + is a cation other than a hydrogen ion.] In formula (c1), A １ O represents an oxyethylene group. １ represents the average number of repeating O and is a number from 8 to 12. x and y are each an integer from 1 to 6, with 6≦x+y≦12. In formula (c2), A ２ O represents an oxyethylene group. m2 represents A ２ It represents the average number of repeating O's and is a number of 3 to 5. R is a linear hydrocarbon group having 12 to 18 carbon atoms. In formula (c3), A ３ O represents an oxyethylene group. m3 represents A ３ represents the average number of repeating O's and is a number from 3 to 5. z is an integer from 9 to 15.

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