Bathroom liquid cleaning agent composition

Abstract

To provide a liquid detergent composition for a bathroom capable of giving good cleaning tactile after rinsing.SOLUTION: A liquid detergent composition for a bathroom includes a constituent (A): (a1) a nonsoap-type anionic surface active agent (a1) and a nonionic surface active agent (a2); a constituent (B): a compound represented by the general formula (I); and a constituent (C): at least one selected from the group consisting of phenoxyethanol and cumenesulfonic acid, paratoluenesulfonic acid, xylenesulfonic acid and methoxybenzene sulfonic acid, and a salt of these, where an a2 / (B+C) ratio is 0.25-2.00 by a mass ratio. R1-O-(C2H4O)x-(C3H6O)y-R2 (I) where, in the formula, R1 and R2 are each independently a hydrogen atom, a 1-6C alkyl or alkenyl group, x is a number expressing an average number of repetitions of an oxyethylene group, and is 0-5, and y is a number expressing an average number of repetitions of an oxypropylene group, and is 0-5, provided that x and y do not become 0 at the same time.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a liquid detergent composition for bathrooms.

Background Art

[0002] Conventional bathroom cleaning is performed by scrubbing the bathtub surface, bathroom floor, etc. with a sponge impregnated with a liquid detergent composition for bathrooms. Therefore, bathroom cleaning was time-consuming and imposed a large physical burden. In order to reduce such problems of bathroom cleaning, detergents that can be cleaned without scrubbing are known.

[0003] [[ID=十六]] As a detergent that can be cleaned without scrubbing, for example, a liquid detergent for bathrooms containing a non-soap anionic surfactant, a glycol-based solvent, and an aminocarboxylic acid type chelating agent, having the detergency of these components and excellent rinsability is known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In order to enable cleaning without scrubbing, it is necessary to adhere to the entire surface of the object to be cleaned. In the conventional technology, there was a problem that due to the surfactant remaining on the object to be cleaned after rinsing, a slimy feeling derived from the surfactant occurred. For this reason, it is required that the liquid detergent composition for bathrooms eliminates the slimy feeling after rinsing and exhibits a good resistance feeling (a tactile feeling with a "kyutt" friction feeling (hereinafter referred to as "good cleaning tactile feeling")) when touching the surface to be cleaned.

[0006] The present invention has been made in view of the above circumstances, and aims to provide a liquid cleaning agent composition for bathrooms that can impart a pleasant clean feeling after rinsing. [Means for solving the problem]

[0007] The present invention has the following aspects. [1](A) Components: (a1) Non-soap-based anionic surfactant and (a2) Nonionic surfactant, (B) Component: A compound represented by the following general formula (I), R1-O-(C2H4O) x -(C3H6O) y -R2···(I) [In the formula, R1 and R2 are independently a hydrogen atom and an alkyl group or alkenyl group having 1 to 6 carbon atoms. x is a number representing the average number of repeats of the oxyethylene group, and is between 0 and 5. y is a number representing the average number of repeats of the oxypropylene group, and is between 0 and 5. However, x and y cannot be 0 at the same time.] (C) Ingredients: Phenoxyethanol and at least one selected from cumenesulfonic acid, paratoluenesulfonic acid, xylenesulfonic acid, and methoxybenzenesulfonic acid and their respective salts, It contains, A liquid bathroom cleaning agent composition having an a2 / (B+C) ratio of 0.25 to 2.00 by mass. [2](D)Component: A liquid bathroom cleaning agent composition according to [1], containing an aminocarboxylic acid type chelating agent. [3] A liquid bathroom cleaning agent composition according to [1] or [2], wherein the a2 / C ratio is 0.7 to 14.0 by mass. [4] A liquid bathroom cleaning agent composition according to any one of [1] to [3], wherein the pH at 25°C is 9 to 12. [5] The (a2) above includes (a3) ​​a polyoxyalkylene type nonionic surfactant having an average number of ethylene oxide addition moles of 4 to 10, A liquid bathroom cleaning agent composition according to any one of [1] to [4], wherein the a3 / C ratio is 0.7 to 15.0 by mass. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a liquid cleaning agent composition for bathrooms that can impart a pleasant clean feeling after rinsing. [Modes for carrying out the invention]

[0009] ≪Liquid cleaning agent composition for bathrooms≫ The liquid bathroom cleaning agent composition of the present invention (hereinafter sometimes simply referred to as "liquid cleaning agent") is a composition containing the following components (A), (B), and (C). In this specification, a numerical range represented by "~" means a numerical range whose lower limit and upper limit are the numbers before and after "~".

[0010] <(A) component> (A) Components include (a1) a non-soap-based anionic surfactant and (a2) a nonionic surfactant. Components (A) contribute to cleaning power and a good cleaning feel.

[0011] (a1) The component is an anionic surfactant, excluding saturated or unsaturated fatty acid salts (so-called soaps) with 8 to 24 carbon atoms. (a1) Examples of components include linear alkylbenzene sulfonates (LAS); linear or branched alkyl sulfates (AS); alkyl ether sulfates or alkenyl ether sulfates (AES); α-olefin sulfonates (AOS); alkane sulfonates having alkyl groups; α-sulfo fatty acid esters (α-SF); carboxylic acid type anionic surfactants such as alkyl ether carboxylates, polyoxyalkylene ether carboxylates, alkyl (or alkenyl) amide ether carboxylates, and acylaminocarboxylates; and phosphate ester type anionic surfactants such as alkyl phosphate esters, polyoxyalkylene alkyl phosphate esters, polyoxyalkylene alkylphenyl phosphate esters, and glycerin fatty acid ester monophosphate esters. Examples of these salts include alkali metal salts such as sodium and potassium, alkaline earth metal salts such as magnesium, alkanolamine salts such as monoethanolamine salts, diethanolamine salts, and triethanolamine salts, and ammonium salts. Among these, alkali metal salts are preferred.

[0012] Of the above, linear alkylbenzene sulfonates are preferably those with 8 to 16 carbon atoms in the linear alkyl group, and more preferably those with 10 to 14 carbon atoms. Alkyl sulfates with 10 to 20 carbon atoms are preferred, and those with 10 to 16 carbon atoms are more preferred. As alkyl ether sulfates or alkenyl ether sulfates, polyoxyethylene alkyl ether sulfates or polyoxyethylene alkenyl ether sulfates are preferred, which have linear or branched alkyl or alkenyl groups having 10 to 20 carbon atoms and to which an average of 1 to 10 moles of ethylene oxide are added. As for the α-olefin sulfonate, those with 10 to 20 carbon atoms are preferred, and those with 10 to 16 carbon atoms are more preferred. As the alkanesulfonate, secondary alkanesulfonates having an alkyl group with 10 to 20 carbon atoms are preferred, and secondary alkanesulfonates having an alkyl group with 14 to 17 carbon atoms are more preferred. As the α-sulfo fatty acid ester salt, α-sulfo fatty acid ester salts having 10 to 20 carbon atoms are preferred, and α-sulfo fatty acid ester salts having 10 to 18 carbon atoms are more preferred. As the polyoxyalkylene ether carboxylate, polyoxyethylene alkyl ether carboxylate or polyoxyethylene alkenyl ether carboxylate is preferred, having a linear or branched alkyl or alkenyl group with 10 to 20 carbon atoms and having an average of 1 to 10 moles of ethylene oxide added. Among these, α-olefin sulfonate is particularly preferred due to its excellent cleaning power against sebum and protein stains. (a1) The component may be used alone or in combination of two or more components.

[0013] Examples of the component (a2) include polyoxyalkylene alkyl ethers having an alkyl group with 8 to 18 carbon atoms, polyoxyalkylene alkenyl ethers having an alkenyl group with 8 to 18 carbon atoms, polyoxyalkylene sorbitan fatty acid esters having a fatty acid group with 8 to 18 carbon atoms, alkyl polyglycosides having an alkyl group with 8 to 18 carbon atoms, sucrose fatty acid esters having a fatty acid group with 8 to 18 carbon atoms, alkyl polyglyceryl ethers having an alkyl group with 8 to 18 carbon atoms, and the like. Among them, from the viewpoints of imparting a good washing touch and detergency, polyoxyethylene alkyl ethers having an alkyl group with 8 to 14 carbon atoms and an average addition mole number of ethylene oxide of 4 to 20 are preferred.

[0014] (a2) preferably contains the component (a3). Examples of the component (a3) preferably include polyoxyalkylene-type nonionic surfactants having an alkyl group with 8 to 18 carbon atoms and a branched structure in the alkyl group, and an average addition mole number of ethylene oxide of 4 to 10. More preferably, the polyoxyalkylene-type nonionic surfactant has an average addition mole number of ethylene oxide of 4 to 8, and even more preferably, the polyoxyalkylene-type nonionic surfactant has an average addition mole number of ethylene oxide of 4 to 6.

[0015] <Component (B)> The component (B) is a glycol-based solvent represented by the following general formula (I). The component (B) has a washing action alone, similar to the component (A). R1-O-(C2H4O) x -(C3H6O) y -R2···(I) [In the formula, R1 and R2 are each independently a hydrogen atom, an alkyl group or an alkenyl group having 1 to 6 carbon atoms. x is a number representing the average repeating number of oxyethylene groups, and is 0 to 5. y is a number representing the average repeating number of oxypropylene groups, and is 0 to 5. However, x and y do not become 0 at the same time.]

[0016] Specific examples of glycol-based solvents include ethylene glycol-based solvents such as ethylene glycol, diethylene glycol, and triethylene glycol; propylene glycol-based solvents such as propylene glycol, dipropylene glycol, tripropylene glycol, and isoprene glycol; and ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, ethylene glycol monohexyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, and diethylene glycol monobenzyl ether. Examples include ethylene glycol ethers, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, and other propylene glycol ethers; and dialkyl glycol ether solvents such as ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, diethylene glycol methyl ethyl ether, propylene glycol methyl ethyl ether, and dipropylene glycol methyl ethyl ether. (B) Component may be used alone or in combination of two or more types.

[0017] (B) is more preferably diethylene glycol monobutyl ether, propylene glycol monopropyl ether, or ethylene glycol monohexyl ether, with diethylene glycol monobutyl ether being particularly preferred.

[0018] <(C) component> Component (C) is a hydrotrope agent containing aromatic groups. Component (C) contributes to providing a pleasant cleaning feel and cleaning power.

[0019] (C) Examples of components include phenoxyethanol, cumenesulfonic acid, p-toluenesulfonic acid, xylenesulfonic acid, and methoxybenzenesulfonic acid and their respective salts. (C) Examples of salt forms of component (C) include alkali metal salts such as sodium and potassium; alkaline earth metal salts such as calcium and magnesium; and alkanolamine salts such as monoethanolammonium, diethanolammonium, and triethanolamine.

[0020] (C) Component may be used alone or in combination of two or more types. (C) The preferred component is phenoxyethanol or paratoluenesulfonic acid, with phenoxyethanol being more preferred.

[0021] <(D) component> The liquid detergent of the present invention preferably further contains component (D). Component (D) is an aminocarboxylic acid type chelating agent. Component (D) contributes to the cleaning power. Examples of aminocarboxylic acid-type chelating agents include methylglycine diacetic acid (MGDA), aspartate diacetic acid (ASDA), isoserine diacetic acid (ISDA), β-alanine diacetic acid (ADAA), serine diacetic acid (SDA), glutamate diacetic acid (GLDA), iminodisuccinic acid (IDS), hydroxyiminodisuccinic acid (HIDS), ethylenediaminetetraacetic acid (EDTA), N-lauroylethylenediaminetriacetic acid, nitrilotriacetic acid (NTA), diethylenetriaminepentaacetic acid (DTPA), and hydroxy Examples include ethylenediaminetriacetic acid (HEDTA), triethylenetetraaminehexaacetic acid (TTHA), 1,3-propanediaminetetraacetic acid (PDTA), 1,3-diamino-2-hydroxypropanetetraacetic acid (DPTA-OH), hydroxyethyleneiminodiacetic acid (HIDA), dihydroxyethylglycine (DHEG), glycol etherdiaminetetraacetic acid (GEDTA), dicarboxymethylglutamic acid (CMGA), (S,S)-ethylenediaminedisuccinic acid (EDDS), or salts thereof.

[0022] Preferred aminocarboxylic acid type chelating agents include ethylenediaminetetraacetic acid (EDTA), hydroxyethylenediaminetriacetic acid (HEDTA), dihydroxyethylglycine (DHEG), hydroxyethyleneiminodiacetic acid (HIDA), and diethylenetriaminepentaacetic acid (DTPA), with ethylenediaminetetraacetic acid (EDTA) being particularly preferred. (D) Component may be used alone or in combination of two or more as appropriate.

[0023] <Water> The liquid cleaning agent of the present invention preferably contains water as a solvent, from the viewpoint of ease of handling during manufacturing and solubility in water during use.

[0024] <Optional ingredients> The liquid detergent may contain any components other than components (A), (B), (C), and (D) as needed, as long as they do not impair the effects of the present invention. As optional ingredients, any ingredients known in the field of cleaning agents can be used. Examples include fragrances, dyes, disinfectants, water-soluble polymers, and thickeners such as clay minerals.

[0025] <Content> (a1) The content of component (a1) is preferably 0.5 to 3.0% by mass, more preferably 0.5 to 2.0% by mass, and particularly preferably 0.5 to 1.0% by mass, relative to the total mass of the liquid detergent. When the content of component (a1) is above the lower limit of the above range, the cleaning power is excellent. When the content of component (a1) is below the upper limit, a good cleaning feel can be provided.

[0026] (a2) The content of component (a2) is preferably 0.5 to 3.5% by mass, more preferably 0.7 to 2.5% by mass, and particularly preferably 0.9 to 2.0% by mass, relative to the total mass of the liquid detergent. When the content of component (a2) is above the lower limit of the above range, a good cleaning feel can be imparted. When the content of component (a2) is below the upper limit, the cleaning power is excellent.

[0027] (a3) The content of component (a3) ​​is preferably 0.5 to 3.0% by mass, more preferably 0.7 to 2.0% by mass, and particularly preferably 0.9 to 1.5% by mass, relative to the total mass of the liquid detergent. When the content of component (a3) ​​is above the lower limit of the above range, a good cleaning feel can be imparted. When the content of component (a3) ​​is below the upper limit, the cleaning power is excellent.

[0028] (B) The content of component (B) is preferably 0.5 to 2.5% by mass, more preferably 1.0 to 2.0% by mass, and particularly preferably 1.3 to 2.0% by mass, relative to the total mass of the liquid detergent. When the content of component (B) is above the lower limit of the above range, the cleaning power is excellent. When the content of component (B) is below the upper limit, a good cleaning feel can be provided.

[0029] (C) The content of component (C) is preferably 0.05 to 1.10% by mass, more preferably 0.15 to 0.90% by mass, and particularly preferably 0.30 to 0.70% by mass, relative to the total mass of the liquid detergent. When the content of component (C) is above the lower limit of the above range, a good cleaning feel can be imparted. When the content of component (C) is below the upper limit, excellent cleaning power is achieved.

[0030] The content of component (D) is preferably 0.5 to 3.5% by mass, and more preferably 1.5 to 2.5% by mass, relative to the total mass of the liquid detergent. When the content of component (D) is above the lower limit of the above range, the cleaning power is excellent. When the content of component (D) is below the upper limit, a good cleaning feel can be imparted.

[0031] In liquid detergents, the a2 / (B+C) ratio, which represents the mass ratio of component (a2) to the total mass of components (B) and (C), is preferably 0.25 to 2.00, more preferably 0.6 to 0.9, and particularly preferably 0.7 to 0.8. When the a2 / (B+C) ratio is equal to or greater than the lower limit, a good cleaning feel can be imparted.

[0032] In liquid detergents, the a2 / C ratio, which represents the mass ratio of component (a2) to component (C), is preferably 0.7 to 14.0, more preferably 1.5 to 4.0, and particularly preferably 1.7 to 3.5. When the a2 / C ratio is above the lower limit, the detergent has excellent cleaning power. When the a2 / C ratio is above the lower limit, a good cleaning feel can be provided.

[0033] In liquid detergents, the a3 / C ratio, which represents the mass ratio of component (a3) ​​to component (C), is preferably 0.7 to 15.0, more preferably 1.5 to 4.0, and particularly preferably 1.7 to 3.5. When the a3 / C ratio is above the lower limit, the detergent has excellent cleaning power. When the a3 / C ratio is above the lower limit, a good cleaning feel can be provided.

[0034] <ph> The pH of the liquid detergent at 25°C is preferably 9 to 12, and more preferably 10 to 11. If the pH of the liquid detergent at 25°C is above the lower limit, it exhibits excellent cleaning power. If the pH of the liquid detergent at 25°C is below the upper limit, it can provide a pleasant cleaning feel. In this invention, the pH (25°C) of the liquid detergent is the value measured by a method conforming to JIS Z 8802:1984 "Method for measuring pH". The pH of the liquid detergent can be adjusted using the pH adjusting agent mentioned above.

[0035] <Manufacturing method> Liquid detergents can be manufactured, for example, by dissolving components (A), (B), and (C) described above, along with component (D) as needed, and any other component, in water and adjusting the pH to a predetermined level using a pH adjusting agent. The liquid cleaning agent may be in the form of a product contained in a known dispensing container, such as a spray bottle or a squeeze container. Alternatively, it may be in the form of a product contained in a storage container and transferred to a dispensing container for use.

[0036] <How to use> Methods for cleaning objects using liquid cleaning agents include spraying them in the form of a mist or foam, leaving them for a specified time, and then rinsing with water. The cleaning may also be carried out using a mechanical cleaning method. For example, the object to be cleaned may be scrubbed with a sponge or the like soaked in the undiluted or diluted solution. The undiluted or diluted solution may be applied to the object to be cleaned and then scrubbed with a sponge or the like. The object to be cleaned may be immersed in the diluted cleaning solution and then scrubbed with a sponge or the like. Examples of objects to be cleaned include hard surfaces in bathrooms and bathroom accessories. A hard surface refers to a surface made of hard materials such as plastics, ceramics, glass, and stainless steel.

[0037] <Effects and Effects> The liquid bathroom cleaning agent composition of the present invention described above contains component (A), component (B), and component (C), and the a2 / (B+C) ratio is within the above range, so it can provide a good clean feeling after rinsing. [Examples]

[0038] The present invention will be described in more detail below with reference to examples and comparative examples, but the present invention is not limited to the following description. Unless otherwise specified, the amounts of components used in each example are calculated on a pure content basis.

[0039] [(A) component] A-1: (a1) Ingredients: Sodium α-olefin (C14) sulfonate (AOS, manufactured by Lion Corporation, product name "Lipolan LJ441") A-2: (a2) Ingredients: Polyoxyethylene alkyl ether (AE, 15 molar adduct of average ethylene oxide of natural alcohol (C12 / 14), manufactured by Lion Chemical Co., Ltd., product name "LMAO-90-M") A-3: (a2) and (a3) ​​components: Polyoxyethylene alkyl ether (average ethylene oxide 7-mol adduct of linear C15 alcohol), manufactured by Nippon Emulsion Co., Ltd., product name "EMALEX715") A-4: (a2) and (a3) ​​component: polyoxyethylene alkyl ether (AE, polyoxyethylene tridecyl ether (average ethylene oxide 7 molar adduct of branched C13 alcohols), manufactured by BASF, trade name "Lutensol TO-7") A-5: (a2) and (a3) ​​component: polyoxyethylene alkyl ether (AE, polyoxyethylene tridecyl ether (average ethylene oxide 5 molar adduct of branched C13 alcohols), manufactured by BASF, trade name "Lutensol TO-5") A-6: (a2) and (a3) ​​component: polyoxyethylene alkyl ether (AE, 2-ethylhexyl ethoxylate (average ethylene oxide 4 molar adduct), manufactured by Aoki Oil & Fat Industry Co., Ltd., product name "Brownon EH-4") A-7: (a2) and (a3) ​​component: polyoxyethylene alkyl ether (AE, 2-ethylhexyl ethoxylate (average ethylene oxide 6 molar adduct), manufactured by Aoki Oil & Fat Industry Co., Ltd., product name "Brownon EH-6")

[0040] [(B) Component] Diethylene glycol monobutyl ether (manufactured by Nippon Emulsifier Co., Ltd., butyl diglycol)

[0041] [(C) component] C-1: Phenoxyethanol (manufactured by Nippon Emulsifier Co., Ltd., phenyl glycol) C-2: Sodium cumenesulfonate (manufactured by Teika Co., Ltd., product name "Teika Tox N5040") C-3: p-toluenesulfonic acid (manufactured by Teika Co., Ltd., product name "Teika Tox 300") C-4: Sodium xylene sulfonate (manufactured by Teika Co., Ltd., product name "Teika Tox N1140") C-5: Sodium methoxybenzenesulfonate (manufactured by Teika Co., Ltd., product name "Teika Tox N6030") [(C') component] C'-6: Phenyldiglycol (manufactured by Nippon Emulsifier Co., Ltd., phenyldiglycol) C'-7: Ethanol (manufactured by Nippon Alcohol Sales Co., Ltd.) C'-8: Ethylene glycol (manufactured by Tokyo Chemical Industry Co., Ltd.)

[0042] [(D) component] Ethylenediaminetetraacetic acid (manufactured by Kirest Co., Ltd.)

[0043] [Thickener] Xanthan gum (manufactured by Sankyo Co., Ltd., product name "KELZAN")

[0044] [pH adjuster] 48% sodium hydroxide (manufactured by Kanto Chemical Co., Ltd., special grade) Citric acid (manufactured by Fuso Chemical Industry Co., Ltd., product name "Anhydrous Citric Acid")

[0045] [Coloring agent] Direct Blue 86 (manufactured by Sumitomo Chemical Co., Ltd., product name "Sumilight Supra Turquise Blue G conc") Green No. 3 (manufactured by Kishi Kasei Co., Ltd., product name "Green No. 3")

[0046] [solvent] purified water

[0047] [Examples 1-43, Comparative Examples 1-10] <Preparation of liquid detergent> Liquid detergents with the formulations shown in Tables 1-11 were prepared using the following procedure. In a 1L beaker, components (A), (B), (C) or [(C')] and (D), along with water, were added and thoroughly stirred. Subsequently, any components other than the pH adjuster were added and mixed. After mixing was complete, an appropriate amount of pH adjuster was added as needed to adjust the pH at 25°C to a desired range, and then water (distilled water) was added to bring the total volume to 100% by mass. The mixture was then stirred well again to obtain a liquid detergent. The cleaning properties and detergent strength of each of the obtained liquid detergents were evaluated using the following method. The results are shown in Tables 1 to 11. In the table, a blank space indicates that the ingredient is not included.

[0048] ≪Method for evaluating liquid detergents≫ For each example of liquid detergent, the pleasant cleaning feel and cleaning power were evaluated as follows.

[0049] [Evaluation of good cleansing feel] A 5cm x 5cm fiberglass-reinforced plastic (FRP) test piece (manufactured by LIXIL Corporation) was coated with 0.5 mL of liquid cleaning agent, and after 1 minute, it was rinsed with tap water (120 mL / s) for 10 seconds. After 10 seconds of rinsing, the surface of the FRP test piece was rubbed with a finger to evaluate whether it had a good cleaning feel. ◎◎, ◎, and ○ were considered passing grades according to the evaluation criteria below. The evaluation results are shown in Tables 1 to 11. [Evaluation Criteria for Good Cleansing Texture] ◎◎: You can feel a firm, squeaky friction. ◎: I feel a slight, firm friction. ○: Does not feel slimy. △: Feels slightly slimy. ×: It feels quite slimy.

[0050] [Evaluation of cleaning power] A test piece made of fiberglass-reinforced plastic (FRP) (2cm x 10cm) was fixed to the inner wall of a bathtub in a typical household. Three adult men then each took a bath three times (one bath per day for three days, during which only the bathwater was changed, and the bathtub was not cleaned), allowing dirt to adhere to the test piece. After thoroughly drying the test pieces with the dirt attached, each example of the bathroom liquid cleaner was dropped onto the test piece so that its entire surface was wet, left for 30 seconds, and then rinsed with tap water (15°C). After thoroughly drying the test pieces, the degree of dirt removal on the surface of the five test pieces was evaluated visually and by touch according to the following evaluation criteria for cleaning power. In the evaluation criteria below, ◎◎, ◎, and ○ were considered passing grades. The evaluation results are shown in Tables 1 to 11. [Criteria for evaluating cleaning power] ◎◎: Excellent stain removal performance. ◎: Removes dirt very well. ○: Good at removing stains. △: Slightly poor stain removal. ×: It's very poor at removing stains.

[0051] [Table 1]

[0052] [Table 2]

[0053] [Table 3]

[0054] [Table 4]

[0055] [Table 5]

[0056] [Table 6]

[0057] [Table 7]

[0058] [Table 8]

[0059] [Table 9]

[0060] [Table 10]

[0061] [Table 11]

[0062] As shown in Tables 1-9, the liquid detergents in each example exhibited excellent cleaning feel and cleaning power. As shown in the results in Table 10, Comparative Example 1, with an a2 / (B+C) ratio of 0.07, had inferior cleansing properties. As shown in the results in Table 10, Comparative Example 2, with an a2 / (B+C) ratio of 3.57, had inferior cleaning feel and cleaning power. As shown in the results in Table 10, Comparative Example 3, which did not contain component (a1), had inferior cleaning power. As shown in the results in Table 10, Comparative Example 4, which did not contain components (a2) and (a3), had inferior cleaning power. As shown in the results in Table 10, Comparative Example 5, which did not contain component (B), had inferior cleansing feel and cleansing power. As shown in the results in Table 10, Comparative Example 6, which did not contain component (C), had inferior cleansing feel and cleansing power. As shown in the results in Table 11, Comparative Example 7, which contained 0.50% by mass of component (C'-6), had inferior cleansing properties. As shown in the results in Table 11, Comparative Example 8, which contained 0.50% by mass of component (C'-7), had inferior cleansing properties. As shown in the results in Table 11, Comparative Example 9, which contained 0.50% by mass of component (C'-8), had inferior cleansing properties. As shown in the results in Table 11, Comparative Example 10, with a pH of 8.00, had inferior cleaning power.< / ph>

Claims

1. (A) Components: (a1) Non-soap-based anionic surfactant and (a2) Nonionic surfactant, (B) Component: A compound represented by the following general formula (I), R １ -O-(C ２ H ４ O) ｘ -(C ３ H ６ O) ｙ -R ２ ・・・(I) [wherein, R １ and R ２ are each independently a hydrogen atom, an alkyl group or an alkenyl group having 1 to 6 carbon atoms. x is a number representing the average repeating number of oxyethylene groups and is 0 to 5. y is a number representing the average repeating number of oxypropylene groups and is 0 to 5. However, x and y do not become 0 at the same time.] (C) Components: Phenoxyethanol and at least one selected from cumenesulfonic acid, p-toluenesulfonic acid, xylenesulfonic acid, and methoxybenzenesulfonic acid and their respective salts, It contains, The above (a1) component is an α-olefin sulfonate, The above (a2) component is a polyoxyethylene alkyl ether having an alkyl group with 8 to 18 carbon atoms and an average number of moles of ethylene oxide added of 4 to 20. The aforementioned component (B) is diethylene glycol monobutyl ether, The content of component (a1) is 0.5 to 3.0% by mass, The content of component (a2) is 0.5 to 3.5% by mass, The content of component (B) is 0.5 to 2.5% by mass, The content of component (C) is 0.05 to 1.10% by mass, The a² / (B+C) ratio is between 0.25 and 2.00 in terms of mass ratio. A liquid bathroom cleaning agent composition having a pH of 9 to 12 at 25°C.

2. (D) Component: A liquid bathroom cleaning agent composition according to claim 1, comprising an aminocarboxylic acid type chelating agent.

3. A liquid bathroom cleaning agent composition according to claim 1 or 2, wherein the a2 / C ratio is 0.7 to 14.0 by mass.

4. The above (a2) includes (a3) ​​a polyoxyalkylene type nonionic surfactant having an average number of ethylene oxide addition moles of 4 to 10, A liquid bathroom cleaning agent composition according to claim 1 or 2, wherein the a3 / C ratio is 0.7 to 15.0 by mass.

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