Liquid detergent composition for hand washing dishes

Abstract

The objective is to create a liquid detergent composition for hand washing dishes that exhibits excellent cleaning properties, low-temperature stability, appropriate viscosity, and gentleness on the hands. [Solution] A liquid dishwashing detergent composition comprising: (A) component: a non-soap-based anionic surfactant; (B) component: one or more surfactants selected from semi-polar surfactants and amphoteric surfactants; (C) component: polyethyleneimine (excluding those containing an oxyalkylene group); and (D) component: at least one polar group-containing compound selected from the group consisting of polar group-containing aromatic compounds having a hydroxyl group or a sulfo group or a salt thereof, and glycol compounds, wherein the content of component (A) is 1 to 20% by mass of the total mass of the liquid dishwashing detergent composition, and the content of component (D) is 0.5 to 6% by mass of the total mass of the liquid dishwashing detergent composition.

Description

[Technical Field]

[0001] This invention relates to a liquid detergent composition for hand washing dishes. [Background technology]

[0002] Liquid dishwashing detergent compositions used for handwashing are required to have various functions in addition to effectively removing oily stains, such as good lathering. For example, Patent Document 1 proposes a liquid dishwashing detergent composition comprising positively charged polyethyleneimine, one or more anionic surfactants, an amine oxide, a surfactant containing betaine or sultaine, and less than 0.5% by mass of cocamide DEA. According to the invention of Patent Document 1, the stabilization of bubbles is achieved. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2019-123886 [Overview of the project] [Problems that the invention aims to solve]

[0004] However, there is a lack of knowledge regarding the technology related to the "feeling of retention" on the skin surface using polyethyleneimine, as it has not been sufficiently investigated. In addition, compositions using polyethyleneimine have the drawbacks of poor stability during low-temperature storage and thickening. In addition, liquid detergent compositions for hand washing dishes are required to be gentle on the hands. Factors that contribute to the feeling of gentleness on the hands include a "feeling of retention" where some components remain on the surface of the hands, giving a protected feeling, and the "lack of dryness" of the hands after washing dishes. It is desirable that liquid detergent compositions for hand washing dishes provide these effects. However, the invention in Patent Document 1 does not consider gentleness on the hands. Therefore, the present invention aims to provide a liquid dishwashing detergent composition that has excellent cleaning properties, excellent low-temperature stability, appropriate viscosity, and is gentle on the hands. [Means for solving the problem]

[0005] The present invention has the following aspects. <1> (A) Ingredients: Non-soap-based anionic surfactant, (B) Components: One or more surfactants selected from semipolar surfactants and amphoteric surfactants, (C) Components: Polyethyleneimine (excluding those containing oxyalkylene groups) and (D) Component: At least one polar group-containing compound selected from the group consisting of polar group-containing aromatic compounds having a hydroxyl group or a sulfo group or a salt thereof, and glycol compounds, A liquid dishwashing detergent composition comprising, The content of component (A) is 1 to 20% by mass relative to the total mass of the liquid dishwashing detergent composition. A liquid dishwashing detergent composition wherein the content of component (D) is 0.5 to 6% by mass relative to the total mass of the liquid dishwashing detergent composition. [Effects of the Invention]

[0006] The liquid dishwashing detergent composition of the present invention exhibits excellent cleaning properties, excellent low-temperature stability, appropriate viscosity, and a gentle feel on the hands. [Modes for carrying out the invention]

[0007] ≪Liquid detergent composition for hand washing dishes≫ The liquid detergent composition for hand washing dishes of the present invention (hereinafter sometimes simply referred to as "liquid detergent composition") is a composition containing components (A) to (D).

[0008] <(A) component> Component (A) is a non-soap-based anionic surfactant. By containing component (A), the liquid detergent composition can enhance its cleaning power against oily stains and improve its staying power.

[0009] (A) Examples of component (A) include α-olefin sulfonic acid or its salt, linear alkyl sulfate ester or its salt, branched alkyl sulfate ester or its salt, alkyl ether sulfate ester or its salt, alkenyl ether sulfate ester or its salt, alkane sulfonic acid or its salt, α-sulfo fatty acid ester or its salt, acyl amino acid-based surfactant, etc.

[0010] The total number of carbon atoms in component (A) is preferably 8 to 26, more preferably 10 to 24, and even more preferably 12 to 22. When the total number of carbon atoms in component (A) is within the above range, the surface charge of the micelles of component (A) changes when diluted with water, making it easier to form a hydrophobic complex through electrostatic interaction with component (C), thereby enhancing the feeling of retention on the skin.

[0011] Examples of salt forms of component (A) include alkali metal salts such as sodium salts and potassium salts, and alkanolammonium salts such as monoethanolammonium salts and diethanolammonium salts. Examples of salts of component (A) include alkali metal salts, alkaline earth metal salts, ammonium ions, and alkanolamine salts.

[0012] Among the components (A) described above, alkyl ether sulfate ester or its salt (AES), alkane sulfonic acid or its salt (SAS), and α-olefin sulfonic acid or its salt (AOS) are preferred.

[0013] As the alkyl ether sulfate ester or its salt, a compound represented by the following formula (a1) (polyoxyalkylene alkyl ether sulfate salt) is preferred. R 1 -O-(EO) n -SO3 - M + ...(a1) In formula (a1), R 1is a linear alkyl group having 8 to 18 carbon atoms, and the carbon atom bonded to the oxygen atom is a primary carbon atom. EO is an oxyethylene group, n represents the average number of moles of addition of EO, 0 < n ≤ 4, and M + is a cation.

[0014] In formula (a1), R 1 preferably has 10 to 14 carbon atoms, more preferably 12 to 14 carbon atoms. Among them, R 1 is preferably an alkyl group derived from an oil and fat raw material. Preferred oil and fat raw materials include palm kernel oil, coconut oil, and the like. n is preferably 1 to 3, more preferably 1 or 2, and even more preferably 1.

[0015] M + includes a hydrogen atom; alkali metal ions such as sodium and potassium; alkaline earth metal ions such as magnesium and calcium; alkanolamines such as monoethanolamine, diethanolamine, and triethanolamine. Among these, alkali metal ions are preferred, and sodium ions are even more preferred. When M + is a divalent cation, the number of M + is the number multiplied by 1 / valence and is combined with SO3 - For example, when M + is a magnesium ion, the number of M + is 1 / 2.

[0016] Suitable polyoxyalkylene alkyl ether sulfates or their salts include sodium polyoxyethylene (1) linear alkyl (C12 / 14 = 75 / 25; derived from natural oils and fats) sulfate. Note that "C12 / 14 = 75 / 25" indicates that the mass ratio of the compound having 12 carbon atoms of R 1 to the compound having 14 carbon atoms of R 1 is 75:25.

[0017] Examples of alkanesulfonic acids or their salts include alkanesulfonic acids having 10 to 20 carbon atoms or their salts, with alkanesulfonic acids having 14 to 17 carbon atoms or their salts being preferred, and secondary alkanesulfonic acids (SAS) having 14 to 17 carbon atoms or their salts being particularly preferred.

[0018] Examples of α-olefin sulfonic acid or its salts include α-olefin sulfonic acid having 10 to 20 carbon atoms or its salts, with α-olefin sulfonic acid having 14 to 16 carbon atoms or its salts being more preferred.

[0019] Acyl amino acid-based surfactants are preferred from the viewpoint of foaming performance, and more preferably, one or more are selected from the group consisting of N-acyl-α-amino acid anionic surfactants represented by the following formula (a2) and N-acyl-β-amino acid anionic surfactants represented by formula (a3).

[0020] [ka]

[0021] In formula (a2), R a1 R is a linear or branched alkyl group having 6 to 20 carbon atoms. a2 R is a hydrogen atom, or a linear or branched alkyl group having 1 to 6 carbon atoms. a3 is a linear or branched alkyl group having 1 to 6 carbon atoms, which may have a hydrogen atom or a carboxyl group, and the carboxyl group is -CO2M a2 It may also form a salt represented by M a2 is a hydrogen atom or counterion, M a1 This is a hydrogen atom or a counterion.

[0022] [ka]

[0023] (a3) Medium, R a1 , R a2 , R a3 M a2 and Ma1 The same applies as described above.

[0024] As fatty acids that form an amide bond with the amino group of an amino acid, from the viewpoint of cleaning power against oil stains, those derived from saturated or unsaturated linear or branched fatty acids having 4 to 30 carbon atoms are preferred, those derived from saturated or unsaturated linear or branched fatty acids having 6 to 26 carbon atoms are more preferred, and those derived from saturated or unsaturated linear or branched fatty acids having 8 to 24 carbon atoms are even more preferred. Examples of such fatty acids include caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, and oleic acid. Among these, one or more selected from lauric acid, myristic acid, palmitic acid, and oleic acid are preferred, with lauric acid being more preferred. Furthermore, the fatty acid-derived group (acyl group) in the N-acyl amino acid may be derived from a mixture of the above fatty acids, for example, obtained from coconut oil, palm kernel oil, etc. Among these, those obtained from coconut oil fatty acids or palm kernel fatty acids are preferred, with those obtained from coconut oil fatty acids being more preferred.

[0025] The amino acid portion of the N-acyl amino acid or its salt is preferably a neutral amino acid selected from glycine, alanine, and methylalanine, and an acidic amino acid selected from glutamic acid and aspartic acid, from the viewpoint of how it feels on the skin and its cleaning power against oily dirt, with glycine, alanine, methylalanine, and glutamic acid being more preferred. Preferred N-acyl amino acids or their salts are N-acylglycine, N-acylalanine, N-acylmethylalanine, and N-acylglutamic acid, with N-acylglutamic acid and their salts being more preferred.

[0026] The above N-acyl amino acids or their salts may be used individually or in combination of two or more. Among these, from the viewpoint of the feeling of staying on the skin and the cleaning power against oily dirt, one or more selected from N-lauroyl glutamic acid, N-myristoyl glutamic acid, N-cocoyl glutamic acid, N-palm fatty acid glutamic acid, N-lauroyl aspartic acid, N-cocoyl glycine, N-cocoyl alanine, N-lauroyl alanine, N-lauroyl methyl alanine and their salts are preferred, one or more selected from N-cocoyl glutamic acid, N-cocoyl glycine, N-cocoyl alanine, N-lauroyl methyl alanine and their salts are more preferred, and one or more selected from N-cocoyl glycine, N-cocoyl alanine and their salts are even more preferred.

[0027] Examples of salts of the above-mentioned N-acyl amino acids or their salts include alkali metal salts such as sodium and potassium; alkaline earth metal salts such as calcium and magnesium; other inorganic salts such as aluminum and zinc; ammonium salts; quaternary ammonium salts derived from organic amines such as monoethanolamine, diethanolamine, triethanolamine, AMP (2-amino-2-methyl-1-propanol), and 2-amino-2-hydroxymethyl-1,3-propanediol; and other organic salts such as quaternary ammonium salts derived from basic amino acids such as arginine, lysine, histidine, and ornithine. The salt of the N-acyl amino acid is preferably one or more salts selected from alkali metal salts, triethanolammonium salts (quaternary ammonium salts of protonated triethanolamine), and quaternary ammonium salts of protonated arginine (hereinafter also referred to as arginine salts), and more preferably one or more salts selected from sodium salts, potassium salts, and triethanolammonium salts.

[0028] Furthermore, when N-acyl amino acids are included, they are neutralized with a base before use. Examples of bases for neutralization include sodium hydroxide, potassium hydroxide, monoethanolamine, triethanolamine, diethanolamine, ammonia, AMP (2-amino-2-methyl-1-propanol), 2-amino-2-hydroxymethyl-1,3-propanediol, lysine, arginine, histidine, sodium acetate, potassium acetate, etc. Preferably, the base is selected from sodium hydroxide, potassium hydroxide, arginine, and triethanolamine to form sodium salt, potassium salt, arginine salt, and triethanolammonium salt, and more preferably one or more bases selected from sodium hydroxide and potassium hydroxide. These (A) components may be a single type or a combination of two or more types.

[0029] In particular, component (A) preferably contains at least one of AES and AOS, more preferably AES, and even more preferably both AES and AOS or both AES and SAS.

[0030] (A) The content of component (A) is preferably 1 to 20% by mass, more preferably 1 to 15% by mass, and even more preferably 5 to 10% by mass, relative to the total mass of the liquid detergent composition. If the content of component (A) is above the lower limit, the cleaning power against oily stains is further enhanced, the amount of complex precipitated when diluted with water increases, so the feeling of staying on the skin is further enhanced, and the viscosity is prevented from becoming too low. If the content of component (A) is below the upper limit, the feeling of dryness is further reduced, and the feeling of staying on the skin is further enhanced. In addition, low-temperature stability is further enhanced, the viscosity is prevented from becoming too high, and thus gelation and separation can be better suppressed.

[0031] When component (A) contains both AES and AOS, or both AES and SAS, the mass ratio expressed as AOS / AES (AOS / AES) or SAS / AES (SAS / AES) is preferably 0.2 to 6, more preferably 0.25 to 4, and even more preferably 0.5 to 2. If the AOS / AES ratio or SAS / AES ratio is above the lower limit, it becomes easier to form a complex with component (B) or component (C), thereby increasing the feeling of retention on the skin. If the AOS / AES ratio or SAS / AES ratio is below the upper limit, it becomes easier to form a complex with component (B) or component (C), thereby increasing the feeling of retention on the skin and increasing the cleansing power against oily dirt.

[0032] <(B) component> Component (B) is one or more surfactants selected from semi-polar surfactants (component (b1)) and amphoteric surfactants (component (b2)). By including component (B), the liquid detergent composition can further enhance its cleaning power against oily stains. (b1) Component refers to a substance that becomes cationic or nonionic depending on the pH of the solution in which it is dissolved or the dispersion system in which it is dispersed.

[0033] (b1) Examples of components include alkylamine oxide type semipolar surfactants and alkylamidoamine oxide type semipolar surfactants. (b1) The compound represented by the following formula (b1) is preferred as component (b1).

[0034] R 2 -(A) p -N(-R 3 )(-R 4 )→O ···(b1)

[0035] In formula (b1), R 2 A is a linear or branched alkyl group having 8 to 18 carbon atoms, or an alkenyl group having 8 to 18 carbon atoms, and A is -C=O(-NH-R 5 )- represents R 5 is an alkylene group having 1 to 4 carbon atoms, p is an integer of 0 or 1, and R 3 and R 4Each of these is independently an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms.

[0036] R in equation (b1) 2 The number of carbon atoms is preferably 10 to 14, and more preferably 11 to 14. 2 Preferably, it is an alkyl group derived from oil and fat raw materials. p is preferably 0. R 3 and R 4 Each of these is independently preferably a C1-C3 alkyl group or a C1-C3 hydroxyalkyl group, more preferably a C1-C3 alkyl group, and even more preferably a methyl group. 2 and R 3 It is particularly preferable that all of them are methyl groups. Among these, lauryldimethylamine oxide and lauric acid amidopropyl dimethylamine oxide are more preferred, and lauryldimethylamine oxide is even more preferred, from the viewpoint of suppressing odor retention on the object to be cleaned and shortening the cleaning time of the object to be cleaned.

[0037] (b2) The compound represented by the following formula (b2) is preferred as component (b2). R 2 -(A) p -N + (-R 3 )(-R 4 )-R 5 -R 6 ...(b2)

[0038] In formula (b2), R 2 represents a linear or branched alkyl group having 8 to 18 carbon atoms, A represents -C=O(-NH-X)-, X represents an alkylene group having 1 to 4 carbon atoms, p is the number 0 or 1, and R 3 and R 4 Each of these independently represents an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms, and R 5 R represents an alkylene group having 1 or 2 carbon atoms. 6 -CO2 - or -SO3 - It represents.

[0039] (b2) Examples of components include carboxylate-type amphoteric surfactants, sulfate-type amphoteric surfactants, sulfonate-type amphoteric surfactants, and phosphate-type amphoteric surfactants. Among these, carboxylate-type amphoteric surfactants and sulfonate-type betaine-type amphoteric surfactants are preferred. Examples of carboxylate salt-type amphoteric surfactants include lauryldimethylaminoacetic acid betaine, coconut alkyldimethylaminoacetic acid betaine, lauric acid amidopropyl dimethylaminoacetic acid betaine, and coconut oil fatty acid amidopropyl dimethylaminoacetic acid betaine (cocamidopropyl betaine). Examples of sulfonate-type amphoteric surfactants include lauryl hydroxysulfobetaine (3-(dodecyldimethylammonio)propanesulfonate) and lauryl hydroxysulfobetaine (3-(dodecyldimethylammonio)-2-hydroxypropanesulfonate).

[0040] The aforementioned component (B) may be a single type or a combination of two or more types. As for component (B), component (b1) is preferred from the viewpoint of cleaning power against oil stains, the compound represented by formula (b1) is more preferred, lauryldimethylamine oxide and lauric acid amidopropyldimethylamine oxide are even more preferred, and lauryldimethylamine oxide is particularly preferred.

[0041] The content of component (B) is preferably 1 to 20% by mass, more preferably 2 to 15% by mass, and even more preferably 3 to 12% by mass, relative to the total mass of the liquid detergent composition. When the content of component (B) is above the lower limit, component (A) and component (B) are arranged alternately with respect to the dirt by electrostatic interaction, and the activators are densely arranged, increasing the cleaning power against oily dirt and enhancing the feeling of retention on the skin. When the content of component (B) is within the above range, the amount of precipitates during washing increases, further enhancing the feeling of retention on the skin. When the content of component (B) is above the lower limit, the cleaning power against oily dirt is further enhanced, and when the content of component (B) is below the upper limit, the cleaning power against oily dirt is enhanced.

[0042] The ratio of the content of component (A) to the content of component (B), expressed as the mass ratio (A / B ratio) of component (A) / component (B), is preferably 0.2 to 10, more preferably 0.5 to 5, and even more preferably 0.8 to 2. When the A / B ratio is above the lower limit, the cleaning power against oily stains is further enhanced, and when the A / B ratio is below the upper limit, the cleaning power against oily stains and the feeling of staying on the skin are enhanced.

[0043] <(C) component> Component (C) is polyethyleneimine (excluding those containing oxyalkylene groups). The liquid cleansing composition can enhance the feeling of retention on the skin by containing component (C).

[0044] Polyethyleneimines are polymers obtained by polymerizing ethyleneimine. Typically, some of the nitrogen atoms in the main chain act as branching points, forming a branched or network structure, and containing one or more primary, secondary, or tertiary amino groups within that structure. The amine groups in the polyethyleneimine backbone are primary, secondary, or tertiary. The polyethyleneimine backbone can have a linear, branched, dendritic, or comb-like structure and can have a weight-average molecular weight of 100-2,000 g / mol, 200-1,500 g / mol, 300-1,000 g / mol, 400-800 g / mol, or 500-700 g / mol.

[0045] The amine group of the main chain of component (C) is either primary, secondary, or tertiary, and is a mixture containing one or more primary, secondary, and tertiary amine groups. The combination of primary, secondary, and tertiary amine substituents can be in any ratio, for example, about 1:1:1 to about 2:2:1, and branched every 3 to 3.5 nitrogen atoms along the main chain or branched chain segments. Alternatively, the amine group of the main chain may be primarily one of the primary, secondary, or tertiary amine substituents.

[0046] Examples of polyethyleneimines include compounds represented by the following formula (c). NH2-CH2CH2-〔N(R c1 )-CH2CH2〕 n1 -NH2···(c) In equation (c), n1 is a number that is 0 or greater than or equal to 1 on average. c1 is a hydrogen atom or -CH2CH2-[N(R c1 )-CH2CH2〕 n1 It is -NH2. The multiple n1s in equation (c) may be the same or different. The polyethyleneimines of the present invention also include modified polyethyleneimines in which the hydrogen atoms of primary, secondary, and tertiary amines in formula (c) are substituted with modifying groups. The modifying groups are those other than hydroxyalkylene groups and polyoxyalkylene groups, and include, for example, alkyl groups, alkylcarbonyl groups, alkylaminocarbonyl groups, alkyloxycarbonyl groups, etc. In formula (c), n1 is a number that is 0 or greater on average, and is preferably a number that is 1 or greater from the viewpoint of enhancing the feeling of retention on the skin.

[0047] Examples of polyethyleneimines or their main chains include compounds represented by the following formulas (c1) to (c3). In formulas (c1) and (c2), the wavy lines indicate the bond positions with adjacent groups.

[0048] [ka]

[0049] [ka]

[0050] [ka]

[0051] The weight-average molecular weight of component (C) is preferably 100 to 5,000,000, more preferably 4,000 to 5,000,000, and even more preferably 500,000 to 3,000,000. If the weight-average molecular weight of component (C) is above the lower limit, the number of amino groups that form a complex with component (A) increases, thereby improving its retention on the skin. If the weight-average molecular weight of component (C) is above the lower limit, it becomes easier to prevent thickening and deterioration of low-temperature storage stability due to component (C). The weight-average molecular weight of component (C) was determined by gel permeation chromatography (GPC) using polyethylene glycol as the standard substance.

[0052] Component (C) may be a modified polyethyleneimine. That is, component (C) may be a modified polyethyleneimine. (C) Component may be used alone or in combination of two or more as appropriate. (C) As for component (C), modified polyethyleneimine is preferred from the viewpoint of enhancing the feeling of retention on the skin.

[0053] Modified polyethyleneimine refers to a material obtained by the reaction of some or all of the primary or secondary amino groups in polyethyleneimine with another compound, or by the reaction of ethyleneimine with another polymer. Examples of modified polyethyleneimine include amide derivatives of polyethyleneimine, alkyl polyethyleneimine, quaternary polyethyleneimine, and polyethyleneimine with hydroxyl groups substituted at the ends. In addition, modified polyethyleneimine described in Japanese Patent Publication No. 60-221088, Japanese Patent Publication No. 59-198190, Japanese Patent Publication No. 62-271791, Japanese Patent Publication No. 58-120879, Japanese Patent Publication No. 60-135585, Japanese Patent Publication No. 60-78906, U.S. Patent No. 3,642,572, U.S. Patent No. 4,144,123, U.S. Patent No. 4,371,674, etc., can be used as modified polyethyleneimine.

[0054] (C) Examples of components include the following products manufactured by BASF: "Lupasol FG", "Lupasol G20", "Lupasol G35", "Lupasol G100", "Lupasol HF", "Lupasol PS", "Lupasol SK", "Lupasol SKA", "Lupasol PN 50", and "Lupasol PN 60"; and the following products manufactured by Nippon Shokubai Co., Ltd.: "Epomin SP-003", "Epomin SP-006", "Epomin SP-012", "Epomin SP-018", "Epomin SP-200", and "Epomin HM-2000". Of these, "Lupasol SK", "Lupasol SKA", "Lupasol PN 50", and "Lupasol PN 60" are modified polyethyleneimines. (C) As for the component, from the perspective of enhancing the feeling of retention on the skin, "Lupasol G100", "Lupasol HF", "Lupasol PS", and "Lupasol SK" are preferred, "Lupasol PS" and "Lupasol SK" are more preferred, and "Lupasol SK" is even more preferred.

[0055] (C) The content of component (C) is preferably 0.02 to 2.5% by mass, more preferably 0.3 to 1.5% by mass, and even more preferably 0.5 to 1% by mass, based on the total mass of the liquid cleansing composition. If the content of component (C) is above the lower limit, the feeling of retention on the skin can be further enhanced, and the viscosity can not be made too low. If the content of component (C) is below the upper limit, the low-temperature stability can be enhanced, and the viscosity can not be made too high.

[0056] The ratio of the content of component (A) to the total amount of the content of component (B) and component (C) (BC amount), expressed as (A) component / [(B) component + (C) component], is preferably 0.2 to 8, more preferably 0.5 to 5, and even more preferably 0.8 to 2. If the A / BC ratio is above the lower limit, the cleansing power of component (B) is added to the cleansing power of component (A), thereby increasing the cleansing power against oily stains, and component (A) is more likely to form a complex with component (B) and component (C), thereby increasing the feeling of retention on the skin. If the A / BC ratio is below the upper limit, the cleansing power of component (A) is more easily obtained, resulting in a higher cleansing power against oily stains, and component (A) is more likely to form a complex with component (B) and component (C), thereby increasing the feeling of retention on the skin.

[0057] <(D) component> Component (D) is at least one polar group-containing compound selected from the group consisting of polar group-containing aromatic compounds having a hydroxyl group or a sulfo group or a salt thereof, and glycol compounds. The inclusion of component (D) enhances low-temperature stability and makes it easier to achieve an appropriate viscosity. Examples of polar groups include hydroxyl groups, sulfo groups or their salts, carboxyl groups or their salts, and among these, hydroxyl groups, sulfo groups or their salts are preferred.

[0058] Examples of component (D) include polar group-containing compounds represented by the following formula (d).

[0059] [ka]

[0060] In formula (d), R d1 is a hydrogen atom or a linear or branched alkyl group having 1 to 6 carbon atoms, and X is -(AO) n -, where AO is an alkylene oxy group having 2 to 4 carbon atoms, n is a number from 1 to 5, Y is a linear or branched alkylene group having 2 to 6 carbon atoms, or -SO2-, and s, t, u and v are each independently 0 or 1. When Y is -SO2-, the terminal hydroxyl group is -O - M d1 It may also be a base represented by M. d1 It is a counterion.

[0061] In formula (d), R d1 Examples of linear or branched alkyl groups having 1 to 6 carbon atoms include methyl, ethyl, n-propyl, and isopropyl groups, with methyl and isopropyl groups being preferred. Examples of alkylene oxy groups in X include ethylene oxy groups and propylene oxy groups, with ethylene oxy groups being preferred. Examples of linear or branched alkylene groups having 2 to 6 carbon atoms in Y include ethylene, propylene, and butylene groups, with ethylene and propylene groups being preferred. M d1 As a counterion, M + This is similar to the example given.

[0062] (D) Component is preferably, for example, a polar group-containing aromatic compound represented by the following formula (d-1) or a glycol compound represented by the following formula (d-2).

[0063] [ka]

[0064] In formula (d-1), R d1 Y, t, and v are the same as above.

[0065] [ka]

[0066] In formula (d-2), R d1 X, t, and u are as described above, Z is a linear or branched alkylene group having 2 to 6 carbon atoms, and m is a number of 0 or 1.

[0067] (d-1) Examples of components include aromatic sulfonic acids or their salts, such as benzenesulfonic acid or its salt, p-toluenesulfonic acid or its salt, and cumenesulfonic acid or its salt, as well as aromatic alcohols such as phenoxyethanol and phenylethyl alcohol. Among these, aromatic sulfonic acids or their salts are preferred, and p-toluenesulfonic acid or its salt is more preferred. (d-2) Examples of the component include glycol compounds, such as dialcohols like ethylene glycol and propylene glycol; ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, ethylene glycol monohexyl ether, diethylene glycol monobutyl ether (butyl carbitol), triethylene glycol monobutyl ether, etc.; propylene glycol monoalkyl ethers such as propylene glycol monomethyl ether, propylene glycol monopropyl ether, dipropylene glycol monomethyl ether, tripropylene glycol monomethyl ether, etc.; and pentylene glycol monoalkyl ethers such as 3-methoxy-3-methylbutanol. Among these, propylene glycol, butyl carbitol, and 3-methoxy-3-methylbutanol are preferred.

[0068] (D) Component is preferably p-toluenesulfonic acid or its salt, cumenesulfonic acid or its salt, phenoxyethanol, 3-methoxy-3-methylbutanol, butylcarbitol, or propylene glycol, more preferably p-toluenesulfonic acid or its salt, cumenesulfonic acid or its salt, or phenoxyethanol, and particularly preferably p-toluenesulfonic acid or its salt, or cumenesulfonic acid or its salt. The above-mentioned component (D) may be a single type or a combination of two or more types.

[0069] The content of component (D) is preferably 0.5 to 6% by mass, more preferably 2 to 5% by mass, and even more preferably 2.5 to 5% by mass, relative to the total mass of the liquid detergent composition. If the content of component (D) is above the lower limit, it enhances low-temperature stability and makes it easier to prevent the viscosity from becoming too high. If the content of component (D) is below the upper limit, it enhances the feeling of staying on the skin and prevents the viscosity from becoming too low.

[0070] <(E) component> The liquid cleansing composition may contain component (E). Component (E) is a nonionic surfactant. By containing component (E), the liquid cleansing composition can further enhance the feeling of staying on the skin.

[0071] Component (E) is not particularly limited as long as it can be conventionally incorporated into liquid detergent compositions, but examples include polyoxyalkylene-added nonionic surfactants and alkyl polyglycosides. Among these, polyoxyalkylene-added nonionic surfactants are preferred as component (E), and polyoxyalkylene alkyl ethers are more preferred.

[0072] As component (E), a polyoxyalkylene alkyl ether having a branched alkyl group is preferred because it is more easily incorporated into a complex of component (A) and component (C), and a Garbet alcohol-type nonionic surfactant represented by the following formula (e1) (component (e1)) is more preferred.

[0073] R15 -CH(R 16 )-CH2-O-(R 17 O) q -H ···(e1) In formula (e1), R 15 and R 16 Each of these is an independently chain-like monovalent hydrocarbon group, and R 15 and R 16 The total number of carbon atoms is 4 to 16, R 17 is a divalent hydrocarbon group having 1 to 3 carbon atoms, and q is R 17 This is a number between 1 and 20 that represents the average number of repetitions of O.

[0074] (e1) Component is hydrophobic (R 15 -CH(R 16 The structure of (e1)-CH2- is bulky. This reduces the total amount of surfactant lined up at the dirt interface when component (e1) is adsorbed onto hydrophobic substances such as oil stains, while increasing the ability to reduce interfacial tension, thus enhancing the cleaning power against oil stains.

[0075] (e1) Examples of component (e1) include 2-propylheptyl alcohol ethoxylate. As a commercially available product of component (e1), BASF's product name "Lutensol XP-100" is preferred. The above-mentioned component (E) may be a single type or a combination of two or more types.

[0076] If the liquid cleansing composition contains component (E), the content of component (E) is preferably 1 to 15% by mass, and more preferably 2 to 12% by mass, relative to the total mass of the liquid cleansing composition. If the content of component (E) is above the lower limit, it is more easily incorporated into the complex of component (A) and component (C), thereby further enhancing the feeling of retention on the skin. If the content of component (E) is below the upper limit, it is easier to maintain the dispersed state of the complex, thereby further enhancing the feeling of retention on the skin.

[0077] <(F) component> The liquid detergent composition may contain component (F). Component (F) is one or more selected from lactic acid and its salts. By containing component (F), the liquid detergent composition can provide a non-drying effect, thereby reducing the feeling of dryness.

[0078] (F) Examples of component (F) include lactic acid and salts thereof. Examples of salts include sodium salts. Sodium lactate is more preferred as component (F). The above-mentioned (F) component may be a single element or a combination of two or more elements.

[0079] If the liquid detergent composition contains component (F), the content of component (F) is preferably 0.5 to 10% by mass, more preferably 1 to 8% by mass, and even more preferably 2 to 7.5% by mass, based on the total mass of the liquid detergent composition. If the content of component (F) is above the lower limit, the feeling of dryness can be further reduced. If the content of component (F) is below the upper limit, the cleaning power against oil stains can be further enhanced.

[0080] <Other ingredients> The liquid detergent composition may contain other components (optional components) besides components (A) to (F). Optional ingredients include water, surfactants other than components (A), (B), and (E) (optional surfactants), hydrotropes, preservatives, inorganic builders, pH adjusters, chelating agents, isothiazolinone and its derivatives, fragrances, dyes, thickeners, etc.

[0081] The water content is preferably 40 to 85% by mass, and more preferably 60 to 80% by mass, relative to the total mass of the liquid detergent composition. If the water content is above the lower limit, gelation is suppressed. If the water content is below the upper limit, the viscosity does not become too low, resulting in excellent usability.

[0082] Examples of optional surfactants include cationic surfactants and soaps (fatty acid salts with 8 to 22 carbon atoms). The total mass of the surfactants containing components (A), (B), and (E) is preferably 10 to 40% by mass, and more preferably 15 to 35% by mass, relative to the total mass of the liquid detergent composition.

[0083] Examples of hydrotropes include monohydric alcohols with 1 to 3 carbon atoms and p-toluenesulfonic acid. When the liquid detergent composition contains a hydrotrope agent, the hydrotrope agent content is preferably 0.5 to 6% by mass, and more preferably 1 to 4% by mass, relative to the total mass of the liquid detergent composition.

[0084] Examples of isothiazolinones and their derivatives include methylisothiazolinone (MIT), chloromethylisothiazolinone (CMIT), 1,2-benzoisothiazolu-3-one (BIT), and 4-formylphenylboronic acid (4FPBA). Isothiazolinone and its derivatives may be used individually or in combination of two or more types. When the liquid detergent composition contains isothiazolinone and its derivatives, the content of isothiazolinone and its derivatives is preferably 0.002 to 0.02% by mass, more preferably 0.005 to 0.018% by mass, and even more preferably 0.009 to 0.015% by mass, based on the total mass of the liquid detergent composition.

[0085] Examples of inorganic builders include metal oxides. Examples of metal oxides include zinc oxide and magnesium oxide. If the liquid detergent composition contains an inorganic builder, the inorganic builder content is preferably 0.01 to 5.0% by mass relative to the total mass of the liquid detergent composition.

[0086] Examples of pH adjusters include inorganic alkaline agents, organic alkaline agents, and inorganic acids. Examples of inorganic alkaline agents include sodium hydroxide, potassium hydroxide, sodium carbonate, and potassium carbonate. Examples of organic alkali agents include amine compounds such as monoethanolamine, diethanolamine, triethanolamine, N-methylpropanol, 2-amino-2-methyl-1-propanol, N-(β-aminoethyl)ethanolamine, diethylenetriamine, morpholine, and N-ethylmorpholine. Examples of inorganic acids include sulfamic acid, hydrochloric acid, and sulfuric acid. Examples of organic acids include acetic acid.

[0087] <Physical properties> The pH of the liquid detergent composition of the present invention at 25°C is preferably 6 to 8. If the pH of the liquid detergent composition at 25°C is within the above range, sliminess can be further suppressed. The pH (25°C) of the liquid detergent composition is the value measured according to the method specified in JIS Z 8802:2011 "Method for Measuring pH".

[0088] The viscosity of the liquid detergent composition of the present invention at 25°C is preferably 10 to 250 mPa·s, and more preferably 50 to 200 mPa·s. If the viscosity is above the lower limit, dripping from the container spout can be effectively suppressed. If the viscosity is below the upper limit, the liquid detergent composition can be dispensed more easily from the container.

[0089] The viscosity of the liquid detergent composition can be adjusted by controlling the water content, adding thickeners, etc. The viscosity of the liquid detergent composition is measured at 25°C using a B-type viscometer, with rotor number No. 1 and rotor speed of 60 rpm, 60 seconds after the start of rotor rotation.

[0090] (Manufacturing method) The liquid detergent composition of the present invention is manufactured by conventionally known manufacturing methods. One method for producing a liquid detergent composition is to add component (A), component (B), component (C), component (D), and other components to a portion of water, mix them, adjust the pH, and then add the remainder of the water.

[0091] <How to use> One method of using the liquid detergent composition is to apply the liquid detergent composition to a cleaning tool, lather the liquid detergent composition on the cleaning tool, and then scrub the object to be cleaned with the lathered cleaning tool. Alternatively, one method is to dissolve the liquid detergent composition in water to make a cleaning solution, and then immerse the object to be cleaned in the cleaning solution while scrubbing it with a cleaning tool. In either method, the object to be cleaned is rinsed with water after scrubbing, and then the water is drained from the object.

[0092] Examples of cleaning tools include single-layer sponges, scrubbing sponges, and mesh sponges.

[0093] Examples of items to be washed include ceramics and metal utensils. Examples of ceramics include tableware such as plates, bowls, and donburi bowls. Examples of metal utensils include tableware such as forks and spoons, and stainless steel sinks.

[0094] <Effects and Effects> As described above, although the mechanism is not clear, it is believed that when the liquid detergent composition of the present invention is applied to a cleaning tool such as a sponge and water is added to create a lather, a complex of anionic component (A) and cationic component (C) remains on the skin, resulting in a feeling of retention. In particular, component (C) has more reaction sites with anions (primary to tertiary amino groups) than known cationic polymers. This makes it easier to form a complex with component (A), which is thought to result in a greater feeling of retention. In particular, the complex is more easily formed when diluted with water, which is thought to enhance the feeling of retention during use. It is believed that the complex of component (A) and component (C) remains on the skin of the hands, thereby suppressing irritation to the sebum layer caused by anionic surfactants and also suppressing moisture evaporation from the skin of the hands. Component (B) is thought to contribute to the feeling of retention on the skin by being incorporated into the complex of components (A) and (C). Furthermore, it is thought that components (A) and (B) can be more easily arranged closely together in relation to oily dirt through electrostatic interaction, thereby enhancing the cleaning power. Component (D) has a good balance of hydrophobic and hydrophilic parts, so even if component (C) becomes more difficult to dissolve or disperse by forming a complex with component (A), it is thought to contribute to low-temperature stability and appropriate viscosity by making it easier to dissolve or disperse in the formulation. In this invention, it is believed that a feeling of retention can be obtained by using components (A) and (C) in combination through the mechanism of action described above. [Examples]

[0095] The present invention will be described in detail below with reference to examples, but the present invention is not limited to the following description.

[0096] (Raw materials used) <(A) component> • a-1: Alkyl ether sulfate (AES), polyoxyethylene (1) linear alkyl (C12 / 14=75 / 25; derived from natural oils) sulfate sodium salt, manufactured by Lion Corporation, in formula (a1), R 1 is a linear alkyl group (C12 / 14=75 / 25; derived from natural oils), n is 1, and M + It is a compound that contains sodium ions. a-2: Sodium α-olefin sulfonate (AOS) with 14 carbon atoms, "Lipolan LB-440" manufactured by Lion Specialty Chemicals. a-3: Secondary alkanesulfonate sodium (SAS) with 14 to 17 carbon atoms, manufactured by Clariant Japan, "HOSTAPUR® SAS30A". a-4: Cocoyl glycinate sodium (Amilite GCS-12K, manufactured by Ajinomoto Co., Ltd.), in formula (a-1), R a1 R is a linear alkyl group having 7 to 17 carbon atoms. a2 R is a hydrogen atom,a3 is a hydrogen atom, and M a1 is a sodium ion. · a-5: Cocoyl alanine sodium (Ajinomoto Co., Inc.'s "Amilite ACS-12"), in formula (a-1), R a1 is a straight-chain alkyl group having 7 to 17 carbon atoms, R a2 is a hydrogen atom, R a3 is a group represented by -CH3, and M a1 is a sodium ion. · a-6: Disodium cocoyl glutamate (Asahi Kasei Chemicals Corporation's "Aminosurfact ACDS-L"), in formula (a-1), R a1 is a straight-chain alkyl group having 7 to 17 carbon atoms, R a2 is a hydrogen atom, R a3 is a group represented by -CH2CH2CO2Na, and M a1 is a sodium ion. · a-7: Sodium lauroyl methyl alanine (Lion Specialty Chemicals Co., Ltd.'s "Enacol L-30"), in formula (a-2), R a1 is a straight-chain alkyl group having 11 carbon atoms, R a2 is a hydrogen atom, R a3 is a hydrogen atom, and M a1 is a sodium ion · a-8: Disodium / dipotassium cocoyl glutamate mixture (Asahi Kasei Chemicals Corporation's "Aminosurfact ACDP-L"), in formula (a-1), R a1 is a straight-chain alkyl group having 7 to 17 carbon atoms, R a2 is a hydrogen atom, R a3 is a group represented by -CH2CH2CO2Na and -CH2CH2CO2K, and M a1 is a sodium ion and a potassium ion, and is a mixture of sodium ion: potassium ion = 1:1. · a-9: Cocoyl glutamate diethanolamine (Asahi Kasei Chemicals Corporation's "Aminosurfact ACMT-L"), in formula (a-1), R a1 is a straight-chain alkyl group having 7 to 17 carbon atoms, R a2 is a hydrogen atom, Ra3 is -CH2CH2CO2 - [N(CH2CH2OH)3] + It is a group represented by M a1 is [N(CH2CH2OH)3] + That is the case.

[0097] <(B) component> • b-1: Alkylamine oxide (AX) having a linear alkyl group with 12 carbon atoms, "Cadenax DM12D-W(C)" manufactured by Lion Specialty Chemicals, lauryldimethylamine oxide, in formula (b1), R 2 is a linear dodecyl group, p is 0, R 3 is a methyl group, R 4 It is a compound that has a methyl group. ·b-2: Lauric acid amidopropyl dimethylamine oxide (APDMAO), manufactured by Clariant Japan, "GENAMINOX AP", in formula (b1), R 2 is a linear undecyl group, p is 1, and A is -C=O(-NH-R 5 )- and R 5 R is a propylene group, 3 is a methyl group, R 4 It is a compound that has a methyl group. • b-3: Lauric acid amidopropyl betaine (LPB), "Energicol L-30B" manufactured by Lion Specialty Chemicals, in formula (b2), R 2 R is a linear undecyl group, p is 1, A is -C=O(-NH-X)-, X is a propylene group, 3 is a methyl group, R 4 R is a methyl group, 5 is a methylene group, R 6 -CO2 - A compound that is

[0098] <(C) component> • c-1: Polyethyleneimine (manufactured by BASF, trade name "Lupasol SK", modified branched polyethyleneimine, weight-average molecular weight = 2 million). • c-2: Polyethyleneimine (BASF, product name "Lupasol G100", branched-chain polyethyleneimine, weight-average molecular weight = 5000). • c-3: Polyethyleneimine (BASF, trade name "Lupasol FG", branched-chain polyethyleneimine, weight-average molecular weight = 800).

[0099] <(C') component> ·c'-1: Alkoxylated polyethyleneimine (alkoxylated PEI), an EO adduct of polyethyleneimine, manufactured by BASF, trade name "Sokalan HP20".

[0100] <(D) component> ·d-1: Paratoluenesulfonic acid (manufactured by Meiyu Sangyo, product name "PTS-70"), in formula (d-1), R d1 A compound in which is a methyl group, t is 0, v is 1, and Y is -SO2-. ·d-2: Sodium cumenesulfonate (manufactured by Teika, trade name "Teika Tox N5040"), in formula (d-1), R d1 The isopropyl group is t = 0, v = 1, Y = -SO2-, and the terminal hydroxyl group is -OM d1 It is a group represented by M d1 A compound in which sodium is present. ·d-3: Phenoxyethanol (manufactured by Nippon Emulsifier Co., Ltd., product name "Phenoxyethanol"), in formula (d-1), R d1 A compound in which is a hydrogen atom, t is 1, v is 1, and Y is an ethylene group. ·d-4:3-Methoxy-3-methylbutanol (manufactured by Kuraray Co., Ltd., trade name "Solfit"), in formula (d-2), R d1 A compound in which is a methyl group, t is 1, u is 0, m is 1, and Z is a sec-butylene group. ·d-5: Butyl carbitol (diethylene glycol monobutyl ether, manufactured by Tokyo Chemical Industry Co., Ltd., trade name "diethylene glycol monobutyl ether", in formula (d-2), R d1 A compound in which is an n-butyl group, t is 1, u is 1, X is an ethyleneoxy group, m is 1, and Z is an ethylene group. • d-6: Propylene glycol (manufactured by ADEKA, trade name "Propylene Glycol"), in formula (d-2), R d1 A compound in which is a hydrogen atom, t is 1, u is 0, m is 1, and Z is an isopropylene group.

[0101] <(E) component> ·e-1: Nonionic surfactant (XP-100): 2-Propylheptyl alkyl ethoxylate (alkyl group: branched chain with 10 carbon atoms, average number of repeating oxyethylene groups is 10 (BASF, LutensolXP-100), in formula (e1), R 15 is a linear pentyl group, R 16 is a linear propyl group, R 17 A compound in which is an ethylene group and q is 10.

[0102] <(F) component> f-1: Sodium lactate, manufactured by Purelac Japan Co., Ltd., product name "Fermented Sodium Lactate 60% (S / HQ60)".

[0103] <Common ingredients> Each example of the liquid detergent composition contains the following common composition: Ethanol: 1.8% by mass. Citric acid: 0.26% by mass. Zinc oxide...0.06% by mass. Sulfamic acid... 0.161% by mass. ·MIT:2-Methyl-4-isothiazolin-3-one (manufactured by Rohm & Haas Japan Co., Ltd., product name "Neolon M-10")···0.001% by mass. ·Fragrance...0.28% by mass. Sodium hydroxide (NaOH)... an appropriate amount (the amount necessary to bring the liquid detergent composition to pH 7). • Water (ion-exchanged water) ... Balance (the amount required to make the total mass of the liquid detergent composition 100% by mass).

[0104] (Evaluation method) <Evaluation of the feeling of lingering> For each example, 4g of the liquid detergent composition and 16g of tap water were placed in a beaker and stirred for 30 seconds without creating foam to prepare a diluted solution. The diluted solution was immediately sampled after stirring, and its transmittance was measured at 660nm (the transmittance of ion-exchanged water was set to 100%). The measured transmittance was classified according to the evaluation criteria below. A lower transmittance indicates a greater amount of precipitate and a higher sense of retention. A value between "△" and "◎◎" indicates excellent retention.

[0105] ≪Evaluation Criteria for Perceived Stagnation: (△ or higher is a passing grade)≫ ◎◎: Transmittance less than 20%. ◎: Transmittance of 20% or more but less than 40%. ○: Transmittance of 40% or more but less than 60%. △: Transmittance of 60% or more but less than 95%. ×: Transmittance 95% or more.

[0106] <Evaluation of low-temperature stability> The detergent was placed in a colorless, transparent glass bottle and stored at -5 degrees Celsius for one week. The appearance after storage was visually inspected and evaluated according to the evaluation criteria below.

[0107] ≪Criteria for evaluating low-temperature stability: (△ or higher is considered passing)≫ ◎: No change compared to before storage, even under low-temperature conditions. △: May become cloudy or precipitate under low temperature conditions, but will not change compared to before storage once returned to room temperature. ×: Under low-temperature conditions, turbidity or precipitation occurs and does not return to normal even when returned to room temperature.

[0108] <Viscosity Evaluation> The sample was adjusted to 25°C, and its viscosity was measured using a rotational viscometer (Anton Paar, product name "ViscoQC100L"). The measurement conditions were a rotation speed of 60 rpm, rotor No. 2, and the viscosity was measured after 1 minute of rotation. The sample was evaluated according to the following evaluation criteria.

[0109] ≪Viscosity Evaluation Criteria: (△ or higher is considered passing)≫ ◎: 70-200 mPa·s. ○: 50-70 mPa·s, or 200-250 mPa·s. △: 10-50 mPa·s, or 250-350 mPa·s. ×: Less than 10 mPa·s, or 350 mPa·s or more.

[0110] <Evaluation of cleaning power> 1.2g of beef tallow (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.), colored to a concentration of 1% by mass of Sudan IV (manufactured by Kanto Chemical Co., Ltd.), was applied evenly to the entire inside surface of a 10cm x 15cm x 5cm plastic container (manufactured by Iwasaki Industries Co., Ltd., product name "NeoKeeper") to create a grime model. 38g of tap water and 2g of liquid detergent composition were placed on an 11.5cm x 7.5cm x 3cm dishwashing sponge (manufactured by 3M Japan Limited, product name "Scotch-Brite") and rubbed by hand 10 times. After that, the bottom surface of the grime model was rubbed 10 times, the sides 10 times, and each of the four corners 5 times, and then the degree to which oil stains were removed from the inside of the container was checked after rinsing with tap water, and the cleaning power was evaluated according to the evaluation criteria below.

[0111] ≪Cleaning power evaluation criteria: (〇 or higher is a pass)≫ ◎◎: No visible traces of colored beef tallow were observed, and there was no greasy feeling due to residual beef tallow. ◎: No visible traces of colored beef tallow remain, but there is a slight greasiness due to residual beef tallow. ○: Visible residue of colored beef tallow is present, and there is a slight sliminess due to the remaining beef tallow. △: There is a considerable amount of colored beef tallow residue, and the meat is greasy due to the remaining beef tallow. ×: A large amount of colored beef tallow residue is visible.

[0112] <Evaluation of lack of dryness (feeling of roughness)> Evaluation Method: Hands were washed beforehand with liquid hand soap (manufactured by Lion Corporation, product name "Kirei Kirei Medicated Liquid Hand Soap") and thoroughly dried with a towel. 2g of detergent solution was added to a sponge (manufactured by 3M Japan Limited, product name "Scotch-Brite®") soaked in 38g of 25°C tap water, and the sponge was rubbed 10 times on a 21cm diameter ceramic plate to create lather. The lathered sponge was placed on the ceramic plate, and the hands were touched with the foam for 1 minute to ensure that the foam evenly covered the palms and backs of the hands. Hands were rinsed with 25°C tap water for 10 seconds, thoroughly dried with a towel, and after 1 minute, the "lack of dryness" was evaluated based on the following evaluation criteria.

[0113] ≪Evaluation criteria for dryness: (〇 or higher is a pass)≫ ◎◎: I don't feel any dryness in my hands at all. ◎: I hardly feel any dryness on my hands. ○: I don't feel much dryness in my hands. △: I feel a slight dryness in my hands. ×: I feel my hands are very dry.

[0114] (Examples 1-37, Comparative Examples 1-9) Liquid detergent compositions for each example with a pH of 7 were prepared by adding each component to water and mixing them according to the compositions shown in Tables 1 to 8. Note that the ingredient amounts in the table are calculated on a net basis. Also, a "-" in the ingredient amount in the table indicates that the ingredient is not included. For each example of a liquid detergent, we evaluated its retention, low-temperature stability, viscosity, cleaning power, and dryness, and the results are shown in the table.

[0115] [Table 1]

[0116] [Table 2]

[0117] [Table 3]

[0118] [Table 4]

[0119] [Table 5]

[0120] [Table 6]

[0121] [Table 7]

[0122] [Table 8]

[0123] As shown in Tables 1-8, Examples 1-37 had a retention rate of "△" to "◎◎", low-temperature stability of "△" to "◎", viscosity of "△" to "◎", cleaning power of "〇" to "◎◎", and non-drying effect of "○" to "◎◎". Comparative Example 1, in which component (C') was used instead of component (C), resulted in a "×" (failure) in terms of the feeling of lingering after use. Comparative Example 2, which contained 25% by mass of component (A), received a "×" rating for low-temperature stability, viscosity, and non-drying properties. Comparative Example 3, which contained 0.8% by mass of component (A), had a cleaning power of "×". Comparative Example 4, which contained 0.4% by mass of component (D), showed "X" for both low-temperature stability and viscosity. Comparative Example 5, which contained 10% by mass of component (D), had a viscosity of "×". Comparative Example 6, which did not contain ingredient (A), showed a "×" rating for both lingering sensation and cleaning power. Comparative Example 7, which did not contain component (B), had a cleaning power of "×". Comparative Example 8, which did not contain component (C), showed a "×" (indicating a feeling of lingering discomfort). Comparative Example 9, which did not contain component (D), showed "X" for both low-temperature stability and viscosity. From the results above, it was confirmed that applying the present invention results in excellent cleaning properties, excellent low-temperature stability, appropriate viscosity, and a feeling of gentleness on the hands.

[0124] While all requirements of the present invention are essential for solving the problems of the present invention using the means of the present invention, the description herein does not imply that the requirements of the present invention are essential for solving problems other than those of the present invention, or for solving the problems of the present invention using means other than those of the present invention. For example, the description herein does not negate the possibility that a liquid dishwashing detergent composition excluding any of the requirements of the present invention described in the claims may solve problems other than those of the present invention, or that the problems of the present invention may be solved using means other than those of the present invention.

Claims

1. (A) Ingredients: Non-soap-based anionic surfactant, (B) Components: One or more surfactants selected from semipolar surfactants and amphoteric surfactants, (C) Components: Polyethyleneimine (excluding those containing oxyalkylene groups) and (D) Component: At least one polar group-containing compound selected from the group consisting of polar group-containing aromatic compounds having a hydroxyl group or a sulfo group or a salt thereof, and glycol compounds, A liquid dishwashing detergent composition comprising, The content of component (A) is 1 to 20% by mass relative to the total mass of the liquid dishwashing detergent composition. A liquid dishwashing detergent composition wherein the content of component (D) is 0.5 to 6% by mass relative to the total mass of the liquid dishwashing detergent composition.

2. The liquid dishwashing detergent composition according to claim 1, wherein component (A) is one or more selected from alkyl ether sulfate or a salt thereof, alkane sulfonic acid or a salt thereof, α-olefin sulfonic acid or a salt thereof, and acyl amino acid-based surfactant.

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