Detergent composition and cleaning method

Abstract

To provide a detergent composition capable of improving detergency, and a cleaning method.SOLUTION: The detergent composition contains the following components (A) and (B), wherein the mass ratio of the component (A) to the component (B) [(A) / (B)] is ≥ 0.5, and is used for washing the body without imparting friction by a solid to the skin or hair. (A) a nonionic surfactant having an HLB of 12 or more and 19 or less when used alone or as a mixture of two or more thereof, and SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a cleaning composition and a cleaning method. [Background technology]

[0002] A known cleanser composition is described in Patent Document 1. Specifically, Patent Document 1 discloses a skin cleansing liquid composition that contains (A) a surfactant and (B) an amphiphilic ester and is used to cleanse the skin without applying physical friction to the skin. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-7305 Summary of the Invention [Problem to be solved by the invention]

[0004] Regarding the composition disclosed in Patent Document 1, since various problems exist depending on the part of the user's body, such as dryness or difficulty in removing stains, a composition that has improved cleansing power and exhibits good cleansing power against stains is desired. Also, improved cleansing power is desired so that stains can be removed from parts of the body that are difficult for the user to remove by themselves, such as the back, without friction with the fingers, etc.

[0005] The present invention is a technology completed based on the above circumstances, and relates to providing a detergent composition and a cleaning method that can improve detergency. [Means for solving the problem]

[0006] The cleanser composition of the present invention contains the following components (A) and (B), in which the mass ratio of component (A) to component (B) [(A) / (B)] is 0.5 or more, and is used to cleanse the body without applying solid friction to the skin or hair: (A) a nonionic surfactant having an HLB value of 12 to 19 when used alone or in combination of two or more types; (B) Anionic surfactant

[0007] The cleansing method of the present invention is a cleansing method that includes washing the body with a cleanser composition containing the following components (A) and (B), wherein the mass ratio of component (A) to component (B) [(A) / (B)] is 0.5 or more, without applying solid friction to the skin or hair: (A) A nonionic surfactant having an HLB of 12 or more and 19 or less when used alone or in combination of two or more types. (B) Anionic surfactant [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a detergent composition and a cleaning method that can improve both detergency and foam breaking properties and also produce good foam quality. [Brief explanation of the drawings]

[0009] [Figure 1] Diagram showing the evaluation of the cleaning power of showers and foam (photographs of the stains after cleaning and their evaluation) [Figure 2] Evaluation of foam quality (photograph of foam and its evaluation) DETAILED DESCRIPTION OF THE INVENTION

[0010] <Embodiment> The embodiments of the present invention will be described in detail. The cleaning composition and cleaning method described below are intended to embody the technical concept of the present invention, and unless otherwise specified, the present invention is not limited to the following.

[0011] The cleaning composition of the present embodiment contains the following components (A) and (B). (A) A nonionic surfactant having an HLB of 12.0 or more and 19.0 or less when used alone or in combination of two or more types. (B) Anionic surfactant

[0012] HLB (Hydrophilic-Lipophilic Balance) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of a surfactant, and can be calculated by the following Griffin formula (1). HLB = 20 × (M H / M) ···(1) where M H is the molecular weight of the hydrophilic group portion of the compound, and M is the molecular weight of the entire compound. The HLB of a mixed surfactant consisting of two or more nonionic surfactants is the arithmetic average of the HLB values ​​of each nonionic surfactant based on their blending ratio, and can be calculated by the following formula (2). Mixed HLB=Σ(HLBx×Wx) / ΣWx (2) Here, HLBx is the HLB value of nonionic surfactant X, and Wx is the mass (g) of nonionic surfactant X having the HLBx value.

[0013] The HLB of component (A) may be 12.5 or higher, 13.0 or higher, 13.5 or higher, 14.0 or higher, or 14.5 or higher. From the viewpoints of detergency and foam-breaking properties, the HLB of component (A) is preferably 15.0 or higher, more preferably 15.5 or higher, even more preferably 16.0 or higher, still more preferably 16.5 or higher, and preferably 18.8 or lower, more preferably 18.3 or lower, even more preferably 17.8 or lower, still more preferably 17.5 or lower, and still more preferably 17.4 or lower. The HLB of component (A) may be 12.5 or higher and 19.0 or lower, 13.0 or higher and 19.0 or lower, 13.5 or higher and 19.0 or lower, 14.0 or higher and 19.0 or lower, or 14.5 or higher and 19.0 or lower. Furthermore, from the viewpoint of detergency and foam breaking ability, the HLB of component (A) is preferably 15.0 or more and 18.8 or less, more preferably 15.5 or more and 18.3 or less, even more preferably 16.0 or more and 17.8 or less, even more preferably 16.5 or more and 17.5 or less, and even more preferably 16.5 or more and 17.4 or less.

[0014] Component (A) may also contain one or more compounds selected from POE alkyl ether (polyoxyethylene alkyl ether; hereinafter, "polyoxyethylene" may be abbreviated as "POE"), POE sorbitan fatty acid ester (polyoxyethylene sorbitan fatty acid ester), alkyl glyceryl ether, polyethylene glycol fatty acid ester, POE hydrogenated castor oil (polyoxyethylene hydrogenated castor oil), alkyl alkanolamide, and alkyl polyglucoside. Component (A) may also be a compound containing at least one of a linear hydrocarbon group having 12 to 14 carbon atoms and a polyoxyethylene skeleton having an average number of added moles of 10 to 50. Component (A) may also be a compound containing at least one of an ether bond, an ester bond, an amide bond, and a glucoside bond.

[0015] As the POE alkyl ether, a compound represented by the following general formula (3) can be used. RO-(CH2CH2O)nH (3) (wherein R represents a linear hydrocarbon group, and n represents an integer). With respect to R in the above formula (3), the linear hydrocarbon group may be a linear hydrocarbon group having 4 to 20 carbon atoms or a linear hydrocarbon group having 10 to 16 carbon atoms, and from the viewpoints of foam quality and foam ejection stability, a linear hydrocarbon group having 12 to 14 carbon atoms is preferred, and a linear hydrocarbon group having 12 carbon atoms is more preferred. Furthermore, from the viewpoints of detergency and foam-breaking ability, the number n in the above formula (3) (sometimes referred to as the "average number of added moles") is from 6 to 95, preferably 8 or more, more preferably 10 or more, even more preferably 15 or more, still more preferably 20 or more, preferably 50 or less, more preferably 45 or less, even more preferably 40 or less, still more preferably 35 or less, even more preferably 30 or less, still more preferably 25 or less, and still more preferably 22 or less. Furthermore, from the viewpoint of detergency and foam breaking ability, the number n in the above formula (3) is preferably 8 or more and 50 or less, more preferably 10 or more and 45 or less, even more preferably 15 or more and 40 or less, still more preferably 20 or more and 35 or less, even more preferably 20 or more and 30 or less, still more preferably 20 or more and 25 or less, and still more preferably 20 or more and 22 or less.

[0016] As the POE alkyl ether, POE(n) lauryl ether (n is the average number of moles added; the same notation will be used hereinafter) in which R is a linear hydrocarbon group having 12 carbon atoms in the above formula (3), or POE(n) myristyl ether (n is the average number of moles added; the same notation will be used hereinafter) in which R is a linear hydrocarbon group having 14 carbon atoms can be used. The POE alkyl ether may be one or more selected from the group consisting of POE (6) lauryl ether (HLB 12.5) (a polyoxyethylene lauryl ether in which n is 6 and has an HLB of 12.2; hereinafter the same notation applies), POE (9) lauryl ether (HLB 14.2), POE (12) lauryl ether (HLB 15.3), POE (16) lauryl ether (HLB 16.2), POE (21) lauryl ether (HLB 17.0), POE (41) lauryl ether (HLB 18.3), POE (47) lauryl ether (HLB 18.6), and POE (85) myristyl ether (HLB 19.0). Among these, as the POE alkyl ether, it is preferable to use one or more selected from POE (12) lauryl ether (HLB 15.3), POE (16) lauryl ether (HLB 16.2), POE (21) lauryl ether (HLB 17.0), POE (41) lauryl ether (HLB 18.3), and POE (47) lauryl ether (HLB 18.6), and it is more preferable to use POE (21) lauryl ether (HLB 17.0).

[0017] Examples of POE sorbitan fatty acid esters include polyoxyethylene sorbitan monolaurate such as polysorbate 20; polyoxyethylene sorbitan monopalmitate such as polysorbate 40; polyoxyethylene sorbitan monostearate such as polysorbate 60; and polyoxyethylene monooleate such as polysorbate 80. Among these, from the viewpoints of low-temperature stability and foam ejection stability, polyoxyethylene sorbitan monolaurate is preferred, and polysorbate 20 (HLB 17.5) is more preferred.

[0018] The alkyl glyceryl ether is not particularly limited, but examples thereof include monolauryl glyceryl ether, monomyristyl glyceryl ether, monocetyl glyceryl ether, monostearyl glyceryl ether, and monobehenyl glyceryl ether.

[0019] The polyethylene glycol fatty acid ester is preferably one in which the alkyl group constituting the polyethylene glycol fatty acid ester has 10 to 18 carbon atoms, more preferably 12 to 14 carbon atoms, and preferably one in which the average number of moles of ethylene oxide added is 10 to 24, more preferably 8 to 18, and even more preferably 10 to 14. Specifically, the polyethylene glycol fatty acid ester is preferably a polyethylene glycol laurate having an average number of moles added of 10 to 14, and more preferably a polyethylene glycol laurate having an average number of moles added of 12 (PEG-12 laurate (HLB 15.7)).

[0020] The alkyl polyglucoside may have an alkyl group having 6 to 22 carbon atoms and an average condensation degree of the glucoside unit of 1 to 7. Specific examples of alkyl polyglucosides include octyl polyglucoside, 2-ethylhexyl polyglucoside, decyl polyglucoside, lauryl polyglucoside, myristyl polyglucoside, palmityl polyglucoside, isostearyl polyglucoside, stearyl lauryl polyglucoside, oleyl polyglucoside, and behenyl polyglucoside. Preferred alkyl polyglucosides have an alkyl group having 8 to 16 carbon atoms. Among these, lauryl polyglucoside (HLB 12.2) is more preferred from the viewpoints of low-temperature stability and foam ejection stability. Lauryl polyglucoside is also sometimes called alkyl (8-16) polyglucoside.

[0021] Specifically, as such component (A), from the viewpoints of detergency, foam quality, and foam breaking ability, one or more of POE (6) lauryl ether (HLB 12.5), POE (9) lauryl ether (HLB 14.2), POE (12) lauryl ether (HLB 15.3), POE (16) lauryl ether (HLB 16.2), POE (21) lauryl ether (HLB 17.0), POE (41) lauryl ether (HLB 18.3), POE (47) lauryl ether (HLB 18.6), POE (85) myristyl ether (HLB 19.0), polysorbate 20 (HLB 17.5), PEG-12 laurate (HLB 15.7), and lauryl polyglucoside (HLB 12.2) can be used. Among these, POE (21) lauryl ether (HLB 16.2) is preferred as component (A) from the viewpoints of detergency, foam quality, and foam breaking ability. POE (21) lauryl ether is also known as "EMULGEN 121, manufactured by Kao Corporation" ("EMULGEN" is a registered trademark). The weight-average molecular weight of POE (21) lauryl ether is 1113. A commercially available product can be used as component (A). From the viewpoint of detergency, the content of component (A) is preferably 0.14% by mass or more, more preferably 0.3% by mass or more, and even more preferably 0.7% by mass or more. From the viewpoints of detergency and foam breaking ability and foam discharge stability, the content of component (A) is preferably 19.7% by mass or less, more preferably 12.8% by mass or less, and even more preferably 8.5% by mass or less. The content of component (A) is preferably from 0.14 to 19.7% by mass, more preferably from 0.3 to 12.8% by mass, and even more preferably from 0.7 to 8.5% by mass. In this embodiment, the "% by mass" of each component refers to the proportion of the mass of each component to the total mass of the detergent composition, where the total mass of the detergent composition is 100% by mass.

[0022] A detergent composition containing the above-described component (A) can improve detergency. It also enables the detergent composition to have improved foam quality and foam breaking properties. Breaking of generated foam further improves detergency. Furthermore, improved foam quality makes it easier for the foam-like detergent composition to adhere to skin or hair, allowing the detergent composition to optimally exhibit its foam breaking properties and detergency at the area to be cleaned by the user. Furthermore, a detergent composition with such detergency can adhere to skin or hair to spontaneously remove dirt (achieve a spontaneous cleansing effect), thereby enabling the body to be washed without friction from solid objects such as hands, sponges, or brushes on the skin or hair. Here, "not applying friction from solids" refers to not applying friction from cleaning tools such as sponges or brushes, and more preferably refers to a cleansing method that does not directly rub the skin with hands. On the other hand, such a detergent composition can improve foam rinse-off, which facilitates post-rinsing disposal and makes it practical.

[0023] The anionic surfactant of component (B) is not particularly limited as long as it is contained in a typical cleanser composition used for skin or hair. For example, it may contain one or more selected from polyoxyethylene alkyl ether sulfates, polyoxyethylene alkyl ether acetates, acyl glutamates, acyl sarcosinates, acyl methyl taurines, salts of linear fatty acids having 12 to 18 carbon atoms, and internal olefin sulfonates. Among these, polyoxyethylene alkyl ether sulfates are more preferred from the viewpoints of cleansing properties, foam quality, and foam breaking properties. Examples of salts of these compounds include those of alkali metals such as sodium and potassium; alkaline earth metals such as calcium and magnesium; and ammonium. Of these, it is preferable to contain one or more selected from sodium, potassium, and ammonium from the viewpoint of low-temperature stability. Commercially available products of these anionic surfactants can be used.

[0024] Examples of polyoxyethylene alkyl ether sulfates include those represented by the following general formula (4). R 2 O-(CH2CH2O)m-SO3M (4) (In the formula, R 2 represents a linear hydrocarbon group, m represents an integer, and M represents the above salt. R 2 Regarding the above, the number of carbon atoms in the linear hydrocarbon group is not particularly limited, but from the viewpoints of foam quality and foam ejection stability, the number of carbon atoms is preferably 10 or more, and more preferably 12 or more. From the same viewpoints, the number of carbon atoms in the linear hydrocarbon group is preferably 15 or less, more preferably 13 or less, and even more preferably 12 or less. From the same viewpoints, the number of carbon atoms in the linear hydrocarbon group is preferably 10 to 15, more preferably 12 to 13, and even more preferably 12. The number of m is not particularly limited, but from the viewpoint of low-temperature stability, it is preferably 1 or more. From the same viewpoints, the number of m is preferably 10 or less, more preferably 5 or less, and even more preferably 3 or less. The number of m is preferably 1 to 10, more preferably 1 to 5, and even more preferably 1 to 3.

[0025] Specifically, as such polyoxyethylene alkyl ether sulfates, one or more of POE(1-2) alkyl ether sulfates such as POE(1) lauryl ether sodium sulfate (polyoxyethylene alkyl ether sodium sulfate where the number m is 1; hereinafter the same notation applies), POE(1) lauryl ether ammonium sulfate, POE(1) myristyl ether sodium sulfate, POE(2) lauryl ether sodium sulfate, and POE(2) myristyl ether sodium sulfate can be used. Among these, POE(2) lauryl ether sodium sulfate is preferred from the viewpoint of foam quality and foam discharge stability.

[0026] Examples of polyoxyethylene alkyl ether acetates include those represented by the following general formula (5). R 3 O-(CH2CH2O)p-CH2COOM ···(5) (In the formula, R 3 represents a linear hydrocarbon group, p represents an integer, and M represents the above salt. R 3 Regarding the above, the number of carbon atoms in the linear hydrocarbon group is not particularly limited, but from the viewpoint of foam quality and foam ejection stability, the number of carbon atoms is preferably 10 or more, and more preferably 12 or more. From the same viewpoint, the number of carbon atoms in the linear hydrocarbon group is preferably 15 or less, more preferably 13 or less, and even more preferably 12 or less. The number of carbon atoms in the linear hydrocarbon group is preferably 10 to 15, more preferably 12 to 13, and even more preferably 12. The number of p is not particularly limited, but from the viewpoint of low-temperature stability, it is preferably 1 or more, and more preferably 2 or more. From the same viewpoint, the number of p is preferably 10 or less, and more preferably 7 or less. The number of p is preferably 1 to 10, and more preferably 2 to 7.

[0027] Specific examples of such polyoxyethylene alkyl ether sodium acetates include POE(4) lauryl ether sodium acetate (polyoxyethylene alkyl ether sodium acetate in which the number m is 4; hereinafter the same notation applies), POE(5) lauryl ether sodium acetate, POE(6) lauryl ether sodium acetate, etc. Among these, POE(4) lauryl ether sodium acetate is preferred as the polyoxyethylene alkyl ether sodium acetate from the viewpoints of foam quality and foam discharge stability.

[0028] As the acyl glutamate, acyl sarcosinate, and acyl methyl taurate, sodium cocoyl glutamate, sodium cocoyl sarcosinate, and sodium cocoyl methyl taurate can be used, respectively. As the salt of a straight-chain fatty acid having 12 to 18 carbon atoms, one or more of potassium laurate, potassium myristate, potassium palmitate, and potassium stearate can be used.

[0029] The internal olefin sulfonate is a sulfonate obtained by sulfonating a raw material, for example, an internal olefin (an olefin having a double bond inside the olefin chain) having 14 to 24 carbon atoms, followed by neutralization and hydrolysis. As the internal olefin sulfonate, for example, sodium internal olefin sulfonate can be used.

[0030] From the viewpoints of detergency, foam quality, and foam-breaking ability, the (B) component is preferably one or more selected from POE (2) lauryl ether sodium sulfate, POE (4) lauryl ether sodium acetate, sodium cocoyl glutamate, sodium cocoyl sarcosinate, sodium cocoyl methyl taurate, potassium laurate, potassium myristate, potassium palmitate, potassium stearate, and sodium internal olefin sulfonate, and more preferably POE (2) lauryl ether sulfate. From the viewpoint of detergency, the content of the (B) component is preferably 0.06% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.23% by mass or more. From the viewpoints of detergency and foam-breaking ability and foam discharge stability, the content of the (B) component is preferably 15.3% by mass or less, more preferably 10% by mass or less, and even more preferably 6.6% by mass or less. The content of the component (B) is preferably from 0.06 to 15.3% by mass, more preferably from 0.1 to 10% by mass, and even more preferably from 0.23 to 6.6% by mass.

[0031] The mass ratio of component (A) to component (B) [(A) / (B)] is preferably 0.5 or more, more preferably 1.5 or more, and even more preferably 2.5 or more, from the viewpoints of detergency, foam quality, and foam breaking ability. Furthermore, the mass ratio of component (A) to component (B) [(A) / (B)] is preferably 6 or less, more preferably 3.5 or less, from the viewpoint of foam quality. Furthermore, the mass ratio of component (A) to component (B) [(A) / (B)] is preferably 0.5 or more and 6 or less, more preferably 1.5 or more and 6 or less, and even more preferably 2.5 or more and 3.5 or less.

[0032] The total amount of components (A) and (B) [(A) + (B)] in the entire detergent composition is preferably 0.4% by mass or more, more preferably 0.5% by mass or more, even more preferably 0.8% by mass or more, even more preferably 0.93% by mass or more, and still more preferably 6% by mass or more, from the viewpoints of detergency, foam quality, and foam discharge stability. Furthermore, the total amount of components (A) and (B) [(A) + (B)] is preferably 23% by mass or less, more preferably 18% by mass or less, and even more preferably 13% by mass or less, from the viewpoint of foam breaking ability. Furthermore, the total amount of components (A) and (B) [(A) + (B)] is preferably 0.4% by mass or more and 23% by mass or less, more preferably 0.5% by mass or more and 18% by mass or less, even more preferably 0.8% by mass or more and 13% by mass or less, and even more preferably 0.93% by mass or more and 13% by mass or less.

[0033] The detergent composition may further contain a polyhydric alcohol as component (C). The polyhydric alcohol is not particularly limited, and examples thereof include one or more of dihydric alcohols such as ethylene glycol, diethylene glycol, hexylene glycol, propylene glycol, 1,3-propanediol, dipropylene glycol, polypropylene glycol, isoprene glycol, and 1,3-butylene glycol; trihydric or higher alcohols such as glycerin, diglycerin, triglycerin, tetraglycerin, hexaglycerin, decaglycerin, and trimethylpropanol; and sugars or sugar alcohols such as erythritol, pentaerythritol, dipentaerythritol, glucose, mannose, galactose, sucrose, fructose, maltose, maltitol, xylitol, inositol, sorbitan, and sorbitol. Among these, from the viewpoints of low-temperature stability and usability, it is preferable to use at least one of diethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, glycerin, and sorbitol as the polyhydric alcohol, more preferably at least one of propylene glycol and sorbitol, and even more preferably propylene glycol and sorbitol. From the viewpoints of low-temperature stability and foam ejection stability, the content of component (C) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and even more preferably 1% by mass or more. From the same viewpoints, the content of component (C) is preferably 70% by mass or less, more preferably 60% by mass or less, and even more preferably 50% by mass or less. The content of component (C) is preferably 0.1% by mass or more to 70% by mass or less, more preferably 0.5% by mass or more to 60% by mass or less, and even more preferably 1% by mass or more to 50% by mass or less.

[0034] The mass ratio of component (A) to component (C) [(A) / (C)] is preferably 0.03 or more, more preferably 0.08 or more, more preferably 0.20 or more, more preferably 0.35 or more, even more preferably 0.70 or more, and particularly preferably 0.88 or more from the viewpoint of detergency, foam quality, and foam breaking ability. Also, the mass ratio of component (A) to component (C) [(A) / (C)] is preferably 1.60 or less, more preferably 1.30 or less, more preferably 1.15 or less, and even more preferably 0.98 or less from the viewpoint of foam quality. Furthermore, the mass ratio of the (A) component to the (C) component [(A) / (C)] is preferably 0.03 or more and 1.60 or less, more preferably 0.08 or more and 1.30 or less, even more preferably 0.20 or more and 1.15 or less, particularly preferably 0.35 or more and 1.15 or less, particularly preferably 0.70 or more and 0.98 or less, and particularly preferably 0.88 or more and 0.98 or less.

[0035] The mass ratio [{(A) + (B)} / (C)] of the sum of components (A) and (B) [(A) + (B)] to component (C) is preferably 0.03 or more, more preferably 0.05 or more, even more preferably 0.08, and even more preferably 0.11 or more, from the viewpoint of foam detergency. Furthermore, the mass ratio [{(A) + (B)} / (C)] of the sum of components (A) and (B) [(A) + (B)] to component (C) is preferably 2.3 or less, more preferably 1.8 or less, and even more preferably 1.4 or less, from the viewpoint of foam breaking ability. The mass ratio [{(A) + (B)} / (C)] of the sum of components (A) and (B) [(A) + (B)] to component (C) is preferably 0.05 or more and 2.3 or less, more preferably 0.08 or more and 1.8 or less, and even more preferably 0.11 or more and 1.4 or less, from the viewpoint of foam breaking ability.

[0036] From the viewpoint of achieving both low-temperature stability and a good feel when used, the polyhydric alcohol component (C) preferably contains a polyhydric alcohol (C1) that is liquid at 20°C, and more preferably a combination of a polyhydric alcohol (C1) that is liquid at 20°C and a polyhydric alcohol (C2) that is solid at 20°C. Examples of the polyhydric alcohol (C1) include dihydric alcohols such as diethylene glycol and propylene glycol, and trihydric alcohols such as glycerin. Examples of the polyhydric alcohol (C2) include sugar alcohols such as sorbitol and xylitol, and sugars such as maltose. A preferred combination of these polyhydric alcohols is (C1) one or more selected from dihydric alcohols and trihydric alcohols that are liquid at 20°C, and (C2) a sugar alcohol that is solid at 20°C.

[0037] From the viewpoint of low-temperature stability, the content of the polyhydric alcohol (C1) that is liquid at 20° C. in the entire detergent composition is preferably higher than the content of the polyhydric alcohol (C2) that is solid at 20° C. From the same viewpoint, the mass ratio (C1) / (C2) of the polyhydric alcohols (C1) and (C2) is preferably more than 1 and 10 or less, more preferably 1.2 or more and 7 or less, and even more preferably 1.5 or more and 5 or less.

[0038] In addition to the above-mentioned components, the detergent composition of this embodiment may contain components used in ordinary liquid detergents, such as surfactants other than those mentioned above, water (e.g., ion-exchanged water, distilled water), water-soluble polymers, oil components, moisturizers, pH adjusters, viscosity adjusters, disinfectants, anti-inflammatory agents, preservatives, chelating agents, salts, pearlizing agents, scrubbing agents, fragrances, cooling agents, colorants, ultraviolet absorbers, antioxidants, plant extracts, etc.

[0039] The cleaning composition of this embodiment may be a foamer cleaning composition filled in a foamer container (foam-discharging container) or a shower cleaning composition added to shower water, and may be used on skin or hair. The shower cleaning composition may be added to shower water and supplied from a shower head as a cleaning liquid described below. "Added to water" may mean that the shower cleaning composition is added to water sent to the shower head via a shower hose, and diluted with water, so that the cleaning liquid is discharged (supplied) from the shower head. From the perspective of convenience and ease of production, a non-gas type foamer container is preferred as the foamer container.

[0040] Any non-gas-type foamer container can be used as long as the detergent composition filled therein can be mixed with air and discharged as a foam. Examples of non-gas-type foamer containers include pump foamer containers in which the pump head is pressed to pressurize the air chamber cylinder and the detergent composition cylinder, thereby mixing the detergent composition with air and discharging it as a foam, and squeeze foamer containers in which the body of a deformable container is pressed to deform the container, thereby discharging the detergent composition as a foam. A porous membrane filter such as a mesh is preferably provided in the discharge flow path of the foamer container for the detergent composition, from the viewpoint of adjusting the foam quality. Specific examples of non-gas-type foamer containers that can be used include foamer containers described in JP-A-7-315463, JP-A-8-230961, JP-A-2005-193972, JP-A-2012-001225, etc.

[0041] The configuration of the shower in which the shower detergent composition is used is not particularly limited, and may include, for example, a unit structure (mixing unit) that is connected to a shower hose and a shower head, mixes the detergent composition with water supplied from the shower hose to produce a cleaning liquid, and supplies the produced cleaning liquid to the shower head. Specific examples of such showers include the showers described in JP-A-6-209873 and the like.

[0042] The shower in which the cleaning composition of the present invention is used may further include a shower head connected to a shower hose. The shower hose is configured to supply water to the shower head. The shower head includes a mixing unit detachable from the shower head. The mixing unit has a container and a mixing chamber, and is configured to mix water supplied from the shower hose with the cleaning composition contained in the container in the mixing chamber to produce a cleaning liquid. The mixing unit may include a structure for ejecting (squirting) the produced cleaning liquid onto the body from a discharge port of the shower head.

[0043] The mass ratio of water to the shower detergent composition in the cleaning solution (water / shower detergent composition) is preferably 200 or more and 1,800 or less, more preferably 300 or more and 1,500 or less, and even more preferably 400 or more and 800 or less.

[0044] The viscosity of the detergent composition contained in the container at 30° C. is preferably 1 mPa·s or more and 200 mPa·s or less, and more preferably 5 mPa·s or more and 100 mPa·s or less.

[0045] The detergent composition of the present invention is intended to be used for washing the body without applying friction caused by a solid (for example, fingers, a sponge, a brush, or the like) to the skin or hair. The cleaning method of this embodiment also includes using the above-described detergent composition to wash the body without applying friction caused by the solid to the skin or hair. The detergent composition of the present invention is more preferably used for "washing skin or hair using a shower head." In such a detergent composition or cleaning method, when the detergent composition is filled in the foamer container, the foamed detergent composition discharged from the foamer container may be applied to the skin or hair, thereby removing dirt. When the detergent composition is used in the shower, the unit structure may include spraying a cleaning liquid from the shower head containing the detergent composition mixed with water supplied from a shower hose, and then spraying the sprayed cleaning liquid on the skin or hair, thereby removing dirt.

[0046] In relation to the above-described embodiment, the present invention further discloses the following techniques.

[0047] <1> Contains the following components (A) and (B): the mass ratio of the component (A) to the component (B) [(A) / (B)] is 0.5 or more, Used to cleanse the body without applying friction to the skin or hair with solids. Cleaning composition. (A) A nonionic surfactant having an HLB of 12 or more and 19 or less when used alone or in combination of two or more types. (B) Anionic surfactant <2> The component (A) contains one or more selected from polyoxyethylene alkyl ethers, polyoxyethylene sorbitan fatty acid esters, polyethylene glycol fatty acid esters, and alkyl polyglucosides. <1> The cleaning composition according to claim 1. <3> A cleansing composition that is filled into a foam container or added to shower water and is used on the skin or hair, <1> or <2> The cleaning composition according to claim 1. <4> "Used to wash the body without applying friction to the skin or hair by the solid" includes "used to wash the skin or hair using a shower head." <1> ~ <3> The cleaning composition according to any one of the above. <5> The content of the (A) component is 0.14% by mass or more and 19.7% by mass or less. <1> ~ <4> The cleaning composition according to any one of the above. <6> As component (A), one or more of polyoxyethylene (6) lauryl ether, polyoxyethylene (9) lauryl ether, polyoxyethylene (12) lauryl ether, polyoxyethylene (16) lauryl ether, polyoxyethylene (21) lauryl ether, polyoxyethylene (41) lauryl ether, polyoxyethylene (47) lauryl ether, polyoxyethylene (85) myristyl ether, polysorbate 20, PEG-12 laurate, and lauryl polyglucoside are used. <1> ~ <5> The cleaning composition according to any one of the above. <7> (A) component has an HLB value of 15.0 or more and 18.8 or less. <1> ~ <6> The cleaning composition according to any one of the above. <8> The content of the (B) component is 0.06% by mass or more and 15.3% by mass or less. <1> ~ <7> The cleaning composition according to any one of the above. <9> As component (B), one or more selected from polyoxyethylene (2) lauryl ether sodium sulfate, polyoxyethylene (4) lauryl ether sodium acetate, sodium cocoyl glutamate, sodium cocoyl sarcosinate, sodium cocoyl methyl taurate, potassium laurate, potassium myristate, potassium palmitate, potassium stearate, and sodium internal olefin sulfonate are used; <1> ~ <8> The cleaning composition according to any one of the above. <10> the mass ratio of the component (A) to the component (B) [(A) / (B)] is 0.5 or more and 6 or less; <1> ~ <9> The cleaning composition according to any one of the above. <11> The total of the component (A) and the component (B) [(A) + (B)] is 0.4% by mass or more and 23% by mass or less. <1> ~ <10> The cleaning composition according to any one of the above. <12> The content of the (C) component is 0.1% by mass or more and 70% by mass or less. <1> ~ <11> The cleaning composition according to any one of the above. <13> At least one of diethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, glycerin, and sorbitol is used as component (C). <1> ~ <12> The cleaning composition according to any one of the above. <14> Contains the following components (A) and (B): A cleaning composition in which the mass ratio of the component (A) to the component (B) [(A) / (B)] is 0.5 or more, A method of washing the body without applying friction with solids to the skin or hair. (A) A nonionic surfactant having an HLB of 12 or more and 19 or less when used alone or in combination of two or more types. (B) Anionic surfactant <15> Washing the body without applying friction to the skin or hair with the solid means washing the skin or hair using a shower head; the showerhead includes a mixing unit detachable from the showerhead; The mixing unit has a container and a mixing chamber, a step of mixing the detergent composition contained in the container with water in the mixing chamber to obtain a cleaning liquid; and spraying the cleaning liquid onto the body from the outlet of the shower head. <14> The cleaning method described in <16> The mass ratio of water to the detergent composition (water / detergent composition) in the cleaning liquid is 200 or more and 1800 or less. <14> or <15> The cleaning method described in <17> the step of obtaining the cleaning agent includes a step of mixing the cleaning agent composition with air introduced into the mixing chamber from the outside, <15> or <16> The cleaning method described in <18> <1> ~ <13> 1. A shower cleaner composition, wherein the cleaning composition according to any one of the above items 1 to 5 is added to shower water and supplied as a cleaning liquid from a shower head. [Example]

[0048] Specific examples of the present invention are shown below, but the present invention is not limited to these. Unless otherwise specified, the numerical values ​​in each table mean mass %.

[0049] The components used in the production of the detergent composition are listed below along with the names of the raw materials and the manufacturers. Component (A) POE(5) Lauryl Ether (HLB 11.7) (Emulgen 106, Kao Corporation, "Emulgen" is a registered trademark. The same applies below.) POE(6) lauryl ether (HLB 12.5) (Emulgen 108, Kao Corporation) POE(9) lauryl ether (HLB 14.2) (Emulgen 109P, Kao Corporation) POE(12) lauryl ether (HLB 15.3) (Emulgen 120, Kao Corporation) POE(16) lauryl ether (HLB 16.2) (Emulgen 116, Kao Corporation) POE(21) ​​lauryl ether (HLB 17.0) (Emulgen 121, Kao Corporation) POE(41) lauryl ether (HLB 18.3) (Emulgen 130K, Kao Corporation) POE(47) lauryl ether (HLB 18.6) (Emulgen 150, Kao Corporation) POE(100) lauryl ether (HLB 19.3) (Nonion K-2100W, NOF Corporation) POE(85) myristyl ether (HLB 19.0) (Emulgen 4085, Kao Corporation) Polysorbate 20 (HLB 17.5) (Rheodor TW-L120, Kao Corporation; "Rheodor" is a registered trademark) PEG-12 laurate (HLB 15.7) (Emanone 1112, Kao Corporation, "Emanone" is a registered trademark) Alkyl polyglucoside (HLB 12.2) (AG-124, Kao Corporation) (B) Component POE(2) sodium lauryl ether sulfate (EMAL 227-PH11K2, Kao Corporation, "EMAL" is a registered trademark) POE(4) sodium lauryl ether acetate (Akipo LM-26SD, Kao Corporation, "Akipo" is a registered trademark) Sodium cocoyl glutamate (PUJI YG02-25B, Shapuji Biotechnology Co., Ltd.) Sodium cocoyl sarcosinate (Soypon SCE, Kawaken Fine Chemicals Co., Ltd., "Soypon" is a registered trademark) Sodium methyl cocoyl taurate (Diapon K-SF, NOF Corporation, "Diapon" is a registered trademark) Sodium internal olefin sulfonate (Pelex DH-60, Kao Corporation; "Pelex" is a registered trademark)

[0050] <Examples 1-1 to 4-7, Comparative Examples 1-1 to 2-3> Detergent compositions were produced with the compositions shown in Tables 1 to 4. The resulting detergent compositions were added to shower water and sprayed, or foamed from a foamer container, to evaluate their detergency, foam breaking ability, and foam quality. The results are also shown in Tables 1 to 4.

[0051] (Manufacturing method) Each component was mixed and dissolved in ion-exchanged water to produce a cleaning composition. The resulting cleaning composition was added to shower water in the Examples and Comparative Examples shown in Tables 1 and 3, and filled into a foamer container in the Examples and Comparative Examples shown in Tables 2 and 4. The cleaning composition was added to shower water using a unit structure (mixing unit) connected to a shower hose and shower head, which mixes (dilutes) the cleaning composition with water supplied from the shower hose to produce a cleaning liquid, and supplies the produced cleaning liquid to the shower head. The foamer container used was one described in Japanese Patent No. 5608433 (foam-discharging container 10).

[0052] (Evaluation method) "Evaluation of shower cleaning power" Model sebum (dirt) stained with 2% NIPex 160 IQ Powder (ORION Engineered Carbons GmbH) was applied to three 3cm square areas on the inside of one forearm, each 20µL in volume. The water temperature was approximately 40°C, the volume was approximately 2.9L / mL, and the detergent composition was diluted approximately 563 times. The detergent was sprayed onto the inside of the forearm, alternating from the wrist to the elbow and then from the elbow to the wrist, for 1 second each way, to rinse away the dirt. After 15 seconds, the removal of dirt was visually evaluated (scored) on a 5-point scale, and the average of the scores for the three areas was recorded as the cleansing power of the shower (see Figure 1). 1: Doesn't come off at all 2: Slight drop 3: Falls by about half 4: Almost falls off 5: Completely falls off The cleaning power of the shower (average value of three locations) was also evaluated according to the following criteria. ◎: 4.5 or higher. Extremely high cleaning power 〇: 4 or more but less than 4.5. High cleaning power △: 3 or more but less than 4. Good cleaning power ×: Less than 3. No cleaning power

[0053] "Evaluation of foam cleaning power" Model sebum (dirt) stained with 2% NIPex160 IQ POWDER (ORION Engineered Carbons GmbH) was applied to three 3cm square areas on the inside of one forearm, each 20μL in size. One pump of foam was applied to one stain, and the same process was repeated for the other two stains. The inner forearms were then placed facing each other and left to stand for two minutes. Tap water (approximately 40°C) was then used to rinse the stains, running down the arms over them for 10 seconds, avoiding direct contact with the stains. As with the "Shower Cleansing Power Evaluation" above, the removal of the stains from each of the three stains after rinsing was visually evaluated (scored) on a five-point scale, with the average of the three scores representing the cleansing power of the foam (see Figure 1). 1: Doesn't come off at all 2: Slight drop 3: Falls by about half 4: Almost falls off 5: Completely falls off The cleaning power of the foam (average value of three locations) was evaluated according to the following criteria. ◎: 4.5 or higher. Extremely high cleaning power 〇: 4.0 or more but less than 4.5. High cleaning power △: 3.0 or more but less than 4.0. Good cleaning power ×: Less than 3.0. No cleaning power

[0054] "Evaluation of foam breaking ability" 100 mL of an aqueous solution of the detergent composition diluted 500 times with tap water (approximately 24°C) was poured entirely into a 500 mL separatory funnel. The funnel was covered and vigorously shaken up and down, and then the stopcock was opened and the water was drained for 20 seconds. The stopcock was closed, and 100 mL of tap water was poured into the funnel. The funnel was covered and vigorously shaken up and down, and then the stopcock was opened and the water was drained for 20 seconds. The stopcock was closed, and the distance from the top of the foam remaining in the separatory funnel to the stopcock was measured, and the foam breaking ability was evaluated according to the following criteria. ◎: The distance from the top of the foam remaining in the separatory funnel to the stopcock is less than 5 cm 〇: The distance from the top of the foam remaining in the separatory funnel to the stopcock is 5 cm or more but less than 5.5 cm △: The distance from the top of the foam remaining in the separatory funnel to the cock is 5.5 cm or more but less than 6 cm ×: The distance from the top of the foam remaining in the separatory funnel to the cock is 6 cm or more.

[0055] "Evaluation of foam quality" 1 mL of the detergent composition was dropped onto the palm of a hand lightly wetted with tap water (approximately 24°C), and the palm was rubbed back and forth between hands 50 times. The state of the resulting foam was observed by touch and visually, and the foam quality was evaluated according to the following criteria (see Figure 2). ◎: The bubbles are small, the whole bubble looks white, and it is bulky. 〇: The bubbles are small and appear white △: There are many slightly larger bubbles, and the overall whiteness of the bubbles is low. ×: There are many large bubbles and your palm is visible through the foam.

[0056] [Table 1]

[0057] [Table 2]

[0058] [Table 3]

[0059] [Table 4]

[0060] <Prescription Examples 1 and 2> Formulation Example 1 (Table 5) and Formulation Example 2 (Table 6) as shower cleanser compositions are shown below. In the following formulation examples, the number "21" in (21E.O.) represents the average number of moles added (n in general formula (1), m in general formula (4), and p in general formula (5)), and "EO" represents ethylene oxide. For example, polyoxyethylene lauryl ether (21E.O.) is synonymous with POE (21) lauryl ether.

[0061] [Table 5]

[0062] [Table 6]

[0063] <Prescription Examples 3 and 4> Formulation example 3 (Table 7) and formulation example 4 (Table 8) as foamer detergent compositions (foam detergent compositions) are shown below.

[0064] [Table 7]

[0065] [Table 8]

Claims

1. Contains the following components (A) and (B): the mass ratio of the component (A) to the component (B) [(A) / (B)] is 0.5 or more; Used to cleanse the body without applying friction to the skin or hair with solids. Cleaning composition. (A) A nonionic surfactant having an HLB of 12 or more and 19 or less when used alone or in combination of two or more. (B) Anionic surfactant

2. Contains the following components (A) and (B): the mass ratio of the component (A) to the component (B) [(A) / (B)] is 0.5 or more; The shower cleaner composition is added to shower water and supplied as a cleaning liquid from a shower head. (A) A nonionic surfactant having an HLB of 12 or more and 19 or less when used alone or in combination of two or more. (B) Anionic surfactant

3. 3. The detergent composition according to claim 1, wherein component (A) comprises at least one selected from the group consisting of polyoxyethylene alkyl ethers, polyoxyethylene sorbitan fatty acid esters, polyethylene glycol fatty acid esters, and alkyl polyglucosides.

4. The cleaning composition according to claim 1 or 2, wherein the content of the component (A) is 0.14% by mass or more and 19.7% by mass or less.

5. 3. The cleansing composition according to claim 1 or 2, wherein component (B) is one or more selected from the group consisting of polyoxyethylene (2) lauryl ether sodium sulfate, polyoxyethylene (4) lauryl ether sodium acetate, sodium cocoyl glutamate, sodium cocoyl sarcosinate, sodium cocoyl methyl taurate, potassium laurate, potassium myristate, potassium palmitate, potassium stearate, and sodium internal olefin sulfonate.

6. The cleaning composition according to claim 1 or 2, wherein the content of the component (B) is 0.06% by mass or more and 15.3% by mass or less.

7. 3. The cleaning composition according to claim 1, wherein the total of the component (A) and the component (B) [(A) + (B)] is 0.4 mass% or more and 23 mass% or less.

8. Contains the following components (A) and (B): A cleansing method comprising washing the body with a cleanser composition having a mass ratio of component (A) to component (B) [(A) / (B)] of 0.5 or more, without applying friction caused by a solid to the skin or hair. (A) A nonionic surfactant having an HLB of 12 or more and 19 or less when used alone or in combination of two or more. (B) Anionic surfactant

9. 1. A cleaning method using a cleaning composition added to shower water, comprising: mixing the cleaning composition with water supplied to a shower head to generate a cleaning liquid, and supplying the generated cleaning liquid to the body from the shower head to wash the body; The cleaning composition contains the following components (A) and (B): A cleaning method, wherein the mass ratio of the component (A) to the component (B) [(A) / (B)] is 0.5 or more. (A) A nonionic surfactant having an HLB of 12 or more and 19 or less when used alone or in combination of two or more. (B) Anionic surfactant

10. 10. The cleaning method according to claim 9, wherein a mixing ratio of the water supplied to the showerhead to the cleaning composition (water / cleaning composition) is 200 or more and 1800 or less in mass ratio.

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