JP6548009B2 - Liquid detergent composition - Google Patents

Description

  The present invention relates to a liquid detergent composition used for body shampoo, face wash, hand soap, hair shampoo and the like.

An amino acid-based anionic surfactant is widely used as a commercially available cleaning agent because it gives a moist feeling after being gently washed on the skin, and in particular, it is widely blended in face wash, baby body soap and the like.
However, the amino acid-based anionic surfactant has a problem in that it causes sliminess by adhering to the skin due to the affinity between the amino acid and the skin.

In addition, when the concentration of the amino acid-based anionic surfactant is increased for the purpose of improving the detergency, crystals are easily precipitated at low temperatures, and it becomes difficult to secure low-temperature stability. Besides, there is a problem that the wash-up is also increased. Accordingly, it is desirable to provide a liquid detergent composition having high detergency, moist feeling after washing, and low temperature stability while having reduced washup after washing.
So far, detergent compositions have been proposed which have improved these properties.

  In Patent Document 1, acyl methyl taurine type anionic surfactant, alkyl imino dicarboxylic acid type amphoteric surfactant, amide amino acid type amphoteric surfactant, polyoxyethylene methyl glucoside fatty acid ester type nonionic surfactant, 2 It is characterized by blending a polymer derived from (meth) acryloyloxyethyl phosphoryl choline and a (meth) acrylic acid alkyl ester, and a detergent composition having good foamability, slimming feeling at washing, and stability over time has been proposed. However, there was room for further improvement in terms of the reduction in the degree of stickiness and the addition of a moist feeling after washing.

  Further, in Patent Document 2, an acyl alkyl taurine salt type anionic surfactant, a fatty acid salt, an alkyl amino dicarboxylic acid type amphoteric surfactant, an amide amino acid type amphoteric surfactant, a dihydric alcohol, 2- (meth) It is characterized by blending a polymer derived from acryloyloxyethyl phosphoryl choline and (meth) acrylic acid alkyl ester, and a detergent composition having good foamability, makeup loss, slimming properties and stability has been proposed, but the reduction of the luster And there was still room for improvement in the application of moist feeling after washing.

  In the prior art, it has not been possible to provide a liquid detergent composition capable of reducing the stickiness of washing while having high detergency, moist feeling after washing, and low temperature stability.

Unexamined-Japanese-Patent No. 2003-277791 Unexamined-Japanese-Patent No. 2006-096699

  The problem to be solved by the present invention is to provide a liquid detergent composition having high detergency, moist feeling after washing, and low temperature stability, but having reduced washing-up slip.

In order to solve the above problems, as a result of intensive studies by the present inventor, a phosphorylcholine group-containing polymer (hereinafter referred to as a PC polymer) having a specific constituent unit and a specific molecular weight, an amino acid based anionic surfactant and The present invention has been accomplished by confirming that a liquid detergent composition containing water in a specific ratio can solve the above problems.
That is, the present invention is the following [1].

[1] The composition contains the following component (a), component (b) and component (c), and the content of the component (a) is 0.001 to 0.3 mass%, and the content of the component (b) is The content is 5 to 30% by mass, and the mass ratio [a / b] of the content of the component (a) to the content of the component (b) is 5 × 10 ^{−5 to} 5 × 10 ⁻² A liquid detergent composition characterized in that.
(A) A phosphorylcholine group-containing polymer having a weight average molecular weight of 5,000 to 2,000,000, which has a constitutional unit represented by formulas (1a) to (3a).

In the above formulae, R ¹ , R ² and R ⁵ each independently represent a hydrogen atom or a methyl group. R ³ and R ⁴ each independently represent a methyl group or an ethyl group. R ⁶ represents a monovalent hydrocarbon group having 12 to 24 carbon atoms. m is an integer of 1 to 3; n1, n2 and n3 represent the molar ratio of a structural unit and are n1: n2: n3 = 100: 1-400: 1-50.
(B) An acyl amino acid type anionic surfactant in which an acyl group has 6 to 18 carbon atoms.
(C) water.

  As described above, the liquid detergent composition of the present invention can reduce the wetness after washing while having high detergency, moist feeling after washing, and low temperature stability.

Hereinafter, the present invention will be described in detail.
The present invention is a liquid detergent composition comprising the following component (a), component (b) and component (c).

(Component (a))
The component (a) of the present invention is a phosphorylcholine group-containing polymer (PC polymer) having the structural units represented by the above formulas (1a) to (3a).
The PC polymer is a polymer having an average molecular weight of 5,000 to 2,000,000, preferably 100,000 to 1,500,000. When the weight average molecular weight is less than 5,000, the adsorption power of the PC polymer on the acyl amino acid anionic surfactant and the skin may be reduced, and it may be difficult to obtain the desired effect, 2,000,000. In the case of more than 10%, the viscosity at the time of production becomes too high, and there is a possibility that the handling becomes difficult.
The said PC polymer can also have other structural units other than the structural unit represented by Formula (1a)-(3a) in the range which does not impair the effect of this invention.

In formulas (1a) to (3a) constituting the PC polymer, R ¹ , R ² and R ⁵ each independently represent a hydrogen atom or a methyl group. R ³ and R ⁴ each independently represent a methyl group or an ethyl group. R ⁶ represents a monovalent hydrocarbon group having 12 to 24 carbon atoms, such as lauryl, stearyl, behenyl and the like. m is an integer of 1 to 3;

  In formulas (1a) to (3a), n1, n2 and n3 each represent a molar ratio of constituent units, and n1: n2: n3 = 100: 1 to 400: 1 to 50 are satisfied. When n2 is less than 1, the adsorptivity to the acyl amino acid type anionic surfactant is insufficient, and there may be a case where the slimming reduction effect after washing is not sufficiently obtained, and when it is more than 400, the detergency decreases. There is a risk of When n3 is less than 1, the ability to form physically cross-linked gel due to hydrophobic interaction decreases, the effect of reducing the stickiness is not sufficiently obtained, and when it exceeds 50, the water content of PC polymer decreases. Low temperature stability may be impaired.

  The PC polymer can be obtained, for example, by radical polymerization of a monomer composition containing a PC monomer, a (meth) acrylamide derivative, and an alkyl (meth) acrylate derivative. The monomer composition may contain, in addition to the above-mentioned respective monomers, other polymerizable monomers which can be polymerized.

  As a PC monomer, for example, 2-((meth) acryloyloxy) ethyl-2 '-(trimethylammonio) ethyl phosphate, 2- (methacryloyloxy) ethyl-2'-(-) because of high availability. Trimethylammonio) ethyl phosphate {2-methacryloyloxyethyl phosphoryl choline, hereinafter abbreviated as MPC} is preferably mentioned.

  Preferred examples of the (meth) acrylamide derivative represented by the formula (2a) include N, N-dimethylaminoethyl acrylamide and N, N-dimethylaminopropyl acrylamide.

  Preferred examples of the alkyl (meth) acrylate derivative represented by the formula (3a) include lauryl (meth) acrylate, stearyl (meth) acrylate and behenyl (meth) acrylate.

  As another polymerizable polymerizable monomer that can be used for the monomer composition, for example, methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, 2-ethylhexyl (meth) Linear or branched alkyl (meth) acrylates such as acrylates; cyclic alkyl (meth) acrylates such as cyclohexyl (meth) acrylates; aromatic group-containing (meth) acrylates such as benzyl (meth) acrylates and phenoxyethyl (meth) acrylates Styrenic monomers such as styrene, methylstyrene and chloromethylstyrene; vinyl ether monomers such as methyl vinyl ether and butyl vinyl ether; vinyl ester monomers such as vinyl acetate and vinyl propionate; polyethylene glycol (meth) acrylate , Hydrophilic hydroxyl group-containing (meth) acrylates such as propylene glycol (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate; (meth) acrylic Acid group-containing monomers such as styrene sulfonic acid and (meth) acryloyloxyphosphonic acid; nitrogen atom-containing monomers such as aminoethyl methacrylate, dimethylaminoethyl (meth) acrylate and N-vinylpyrrolidone, N, N , N-Trimethyl-N- (2- (meth) acryloxyethyl) ammonium chloride, N, N, N-trimethyl-N- (2-hydroxy-3- (meth) acryloxypropyl) ammonium chloride etc Group-containing monomers are mentioned.

  It is desirable to select other polymerizable monomers in consideration of their properties because they may affect the effect of reducing the stickiness of the PC polymer depending on the type thereof. When the above-mentioned other polymerizable monomer is blended with the monomer composition used for producing the PC polymer, the blending ratio can be appropriately selected as long as the effect of the present invention is not affected. When n1 shown by the said Formula (1a) which comprises uniting is set to 100, 50 or less is preferable at molar ratio.

(Component (b))
The component (b) of the present invention is an acylamino acid-based anionic surfactant having 6 to 18 carbon atoms in the acyl group. An acyl amino acid type anionic surfactant in the present invention is an acylated compound of a compound containing a primary to tertiary amino group and a carboxylic acid or sulfonic acid in the same molecule and a fatty acid, and is mainly acylated It is produced by Schotten-Baumann reaction using fatty acid chloride as an agent.

  Here, as a compound containing a primary to tertiary amino group and a carboxylic acid or sulfonic acid in the same molecule, natural acidic or neutral amino acids obtained by an extraction method or a fermentation method, a synthesis method or an enzyme method And synthetic acidic or neutral amino acids obtained by Specific examples of amino acids include glutamic acid, aspartic acid, glycine, alanine, taurine, methyl taurine, sarcosine (N-methylglycine), β-alanine and the like, and L form, D form and racemate exist respectively Although, any of these can be used.

  The type of the above-mentioned amino acid and the acylamino acid anionic surfactant which is an acylated product can be appropriately selected according to the purpose. For example, acylmethyl taurine salt, acyl taurine salt, acyl methyl-β-alanine or the same Examples thereof include salts, acyl-β-alanine or salts thereof, acyl glutamic acid or salts thereof, acyl glycine or salts thereof, acyl aspartic acid or salts thereof, acyl sarcosine or salts thereof, and the like. Among them, acyl methyl taurine salt, acyl methyl-β-alanine or a salt thereof, acyl glutamic acid or a salt thereof, acyl glycine or a salt thereof, acyl aspartic acid or a salt thereof is preferable in that moist feeling after washing can be obtained. More preferably, they are an acyl glutamic acid or its salt, and an acyl aspartic acid or its salt.

  It does not specifically limit as said salt, An alkali metal salt, an alkanolamine salt, etc. are mentioned. Examples of the alkali metal salt include sodium salt and potassium salt. Examples of the alkanolamine salt include monoethanolamine salt and triethanolamine salt. In order to further increase the detergency, alkali metal salts are preferred, and sodium salts are more preferred.

  The carbon number of the acyl group of component (b) is 6 to 18, preferably 6 to 14. When the carbon number is less than 6, the moist feeling after washing is insufficient. The carbon number of the acyl group is more preferably 10 or more, and particularly preferably 12. In addition, when the carbon number of the acyl group of the component (b) exceeds 18, the detergency is insufficient. In this respect, the carbon number is more preferably 14 or less, and particularly preferably 12.

(Component (c))
The component (c) of the present invention is water, and purified water such as distilled water or ion exchanged water can be preferably used.
Next, the composition according to the present invention will be described in more detail.

  When the washing is carried out, nanoparticles are formed by the hydrophobic interaction of the formula (3a) which is contained in the component (a) of the present invention in a specific ratio. Furthermore, the nanoparticles are positively charged by Formula (2a) and arranged around the negatively charged acylamino acid. At this time, due to the affinity derived from the formula (1a), the nanoparticles arranged around the acyl amino acid are adsorbed on the skin. Thus, by maintaining an appropriate distance between the acylamino acid and the skin by the nanoparticles, it is possible to reduce the washing-up sliminess while having high detergency and moist feeling after washing. .

When the total mass of the present liquid detergent composition is 100% by mass, the content of the component (a) is 0.001 to 0.3% by mass.
The content of component (a) in the liquid detergent composition of the present invention is 0.001 to 0.3% by mass, preferably 0.005 to 0.25% by mass, and more preferably 0.01 to 0.01% by mass. It is 0.20 mass%. More preferably, it is 0.02 to 0.10 mass%. When the content of the component (a) is too small, the effect of reducing the stickiness can not be sufficiently obtained, and when too large, the low temperature stability becomes insufficient.

  When the content of the component (a) is less than 0.001% by mass, the effect of reducing the degree of washing after washing is insufficient. From this viewpoint, the content of the component (a) is preferably 0.005% by mass or more, more preferably 0.01% by mass or more, and still more preferably 0.02% by mass or more. When the content of the component (a) exceeds 0.3% by mass, the detergency and low temperature stability are insufficient. From this viewpoint, the content of the component (a) is preferably 0.25% by mass or less, more preferably 0.20% by mass or less, and still more preferably 0.10% by mass or less.

When the total mass of the present liquid detergent composition is 100% by mass, the content of the component (b) is 5 to 30% by mass.
When the content of the component (b) is less than 5% by mass, the detergency is insufficient. From this viewpoint, the content of the component (b) is preferably 7% by mass or more, and more preferably 8% by mass or more. On the other hand, when the content of the component (b) exceeds 30% by mass, the moist feeling after washing, the reduction of washing-up and the low temperature stability are insufficient. From this viewpoint, the content of the component (b) is preferably 25% by mass or less, and more preferably 20% by mass or less.

The mass ratio [a / b] of the content of the component (a) to the content of the component (b) is 5 × 10 ^{−5 to} 5 × 10 ⁻² , preferably 1 × 10 ⁻⁴ to 1 × 10 ^And more preferably 3 × 10 ^{−4 to} 3 × 10 ⁻³ .
When [a / b] is too small, the reduction of the stickiness becomes insufficient, and when too large, the detergency becomes insufficient.

  As described above, in the present invention, by using the component (a), the component (b) and the component (c) in combination as described above, high detergency, moist feeling after washing, and low temperature stability To provide a liquid detergent composition with reduced washup after washing.

  Furthermore, other optional components can be added to the liquid detergent composition of the present invention as long as the effects of the present invention are not impaired. For example, fats and oils such as vegetable fats and oils, animal fats and oils such as hydrocarbon; hydrocarbon oils such as squalane, liquid paraffin and hydrogenated polyisobutene; higher alcohols such as cetyl alcohol, stearyl alcohol and cetostearyl alcohol; cyclic silicone, dimethylpolysiloxane, amino modified Silicones such as polysiloxanes; Ester oils such as 2-ethylhexyl palmitate, glyceryl tri (capryl / capric acid) and isopropyl myristate; Cationic surfactant such as stearyl trimethyl ammonium chloride, benzalkonium chloride, cocoyl arginine ethyl PCA Anionic surfactant other than component (b) such as polyoxyethylene lauryl ether sulfate, α-olefin sulfonate, etc .; alkyl dimethylamino acetic acid betaine, Amphoteric surfactants such as alkyl carboxymethyl hydroxyethyl imidazolinium betaine, alkylamidopropyl betaine, alkylhydroxysulfobetaine, alkyliminodiacetate; polyoxyethylene alkyl ether, polyglycerin fatty acid ester, polyoxyethylene glyceryl fatty acid ester etc Nonionic surfactants; Solvents such as ethanol; pH adjusters such as citrate, succinate, malate, tartrate; Antioxidants such as tocopherols; Polysaccharides, amino acids, peptides, preservatives, perfumes And colorants can be appropriately blended.

The pH value of the liquid detergent composition of the present invention is not particularly limited, but it is preferably 5.5 to 11.0, more preferably 6.0 to 10.0 at 25 ° C. and 10% by mass aqueous solution. More preferably, it is 6.5-8.0. When the pH is lower than 5.5, the low temperature stability is insufficient, and when the pH is higher than 11.0, there is a concern of irritation to the skin.
The liquid detergent composition of the present invention can be used as a body shampoo, hand soap, hair shampoo and the like in addition to a face wash.

Hereinafter, the present invention will be more specifically described based on examples and comparative examples. The abbreviations used in this example are as follows.
MPC: 2-methacryloyloxyethyl phosphoryl choline (manufactured by NOF Corporation)
DMAPA: dimethylaminopropyl acrylamide (manufactured by Tokyo Chemical Industry Co., Ltd.)
BMA: butyl methacrylate (manufactured by NOF Corporation)
LMA: lauryl methacrylate (manufactured by NOF Corporation)
SMA: Stearyl methacrylate (manufactured by NOF Corporation)
PB-ND: t-Butylperoxy neodecanoate (trade name: Perbutyl-ND, manufactured by NOF Corporation)

Synthesis Examples 1 to 3
Synthesis Example 1: Synthesis of Polymer 1-1
40.41 g of MPC, 4.12 g of SMA, 0.48 g of DMAPAA were dissolved in 55.00 g of ethanol, placed in a four-necked flask, and nitrogen was blown for 30 minutes. Thereafter, 0.10 g of PB-ND was added at 50 ° C. and polymerization reaction was carried out for 8 hours. The polymerization solution was added dropwise to 3 L of diethyl ether while stirring, and the deposited precipitate was filtered and vacuum dried at room temperature for 48 hours to obtain 41.30 g of a white powder (hereinafter, Polymer 1-1). When the average molecular weight of the polymer 1-1 was measured by GPC using polyethylene glycol as a standard, the weight average molecular weight was 820,000.

Synthesis Example 2-3 Synthesis of Polymers 1-2 and 1-3
Polymerization and purification were performed in the same manner as in Synthesis Example 1 except that each monomer shown in Table 1 was used, to obtain polymers 1-2 and 1-3. The weight average molecular weights of the polymers 1-2 and 1-3 are as shown in Table 1.

Comparative Synthesis Example 1: Synthesis of Polymer 2-1
29.43 g of MPC and 15.57 g of DMAPAA were dissolved in 55.00 g of ethanol, placed in a four-necked flask, and purged with nitrogen for 30 minutes. Thereafter, 0.10 g of PB-ND was added at 50 ° C. and polymerization reaction was carried out for 8 hours. The polymerization solution was added dropwise to 3 L of diethyl ether while stirring, and the deposited precipitate was filtered and vacuum dried at room temperature for 48 hours to obtain 40.70 g of a white powder (hereinafter, polymer 2-1). The weight average molecular weight of the polymer 2-1 is as shown in Table 1.

Comparative Synthesis Examples 2 to 3 Synthesis of Polymers 2-2 and 2-3
Polymerization and purification were performed in the same manner as in Comparative Synthesis Example 1 except that each monomer shown in Table 1 was used, to obtain polymers 2-2 and 2-3. The weight average molecular weights of the polymers 2-2 and 2-3 are as shown in Table 1.

The detail of the raw material used for the synthesis shown by the abbreviation in the table is as follows.
MPC: 2-methacryloyloxyethyl phosphoryl choline (manufactured by NOF Corporation)
DMAPA: dimethylaminopropyl acrylamide (manufactured by Tokyo Chemical Industry Co., Ltd.)
BMA: butyl methacrylate (manufactured by NOF Corporation)
LMA: lauryl methacrylate (manufactured by NOF Corporation)
SMA: Stearyl methacrylate (manufactured by NOF Corporation)
PB-ND: t-Butylperoxy neodecanoate (trade name: Perbutyl-ND, manufactured by NOF Corporation)

<Preparation of Liquid Detergent Composition>
The raw materials of Examples 1 to 8 and Comparative Examples 1 to 10 shown in Tables 2 and 3 were all put into beakers, and stirred using a propeller for 1 hour.

<Evaluation of Liquid Detergent Composition>
The usability test was conducted by 20 expert panelists. 1) Detergency, 2) Lubrication after washing, and 3) Moist feeling after washing was rated and graded by each of the panelists according to the following evaluation. 4) The low temperature stability was evaluated by observing the appearance of the liquid detergent composition after storage under constant conditions.

1) Detergency The liquid detergent composition 3g was used, the face after removing makeup was washed, and how to remove oil stains was evaluated according to the following criteria. The average score of the evaluation of 20 panelists passed 3.0 or more.
4: Good removal of sebum stains 3: Good removal of sebum stains 2: Good removal of sebum stains 1: Poor removal of sebum stains

2) Lubrication after washing The following criteria were used to evaluate the lumbering after washing the face after removing makeup with 3 g of the liquid detergent composition. The average score of the evaluation of 20 panelists passed 3.0 or more.
4: There is no sliminess in the wash. 3. There is not much sliminess in the wash. 2. There is some sliminess in the wash. 1: There is a sliminess in the wash.

3) Moist feeling after washing The face after removing makeup was washed with 3 g of a liquid detergent composition, and the moist feeling after removing moisture lightly with a towel was evaluated according to the following criteria. The average score of the evaluation of 20 panelists passed 3.0 or more.
4: There is a moist feeling after washing 3: There is a slight feeling of moistness after washing 2: There is not a lot of feeling of moistness after washing 1: There is no feeling of moistness after washing

4) Low Temperature Stability 50 g of the liquid detergent composition was placed in a 100 mL screw tube, and the appearance state when allowed to stand in a thermostat at 5 ° C. for 1 month was visually observed and judged based on the following criteria.
○: no precipitation or white turbidity, transparent; ×: crystals precipitate, take on fluorescent color, or white turbidity. The results are shown in Tables 2 and 3.

As shown in each table, each of the cleaning agent compositions of Examples 1 to 8 according to the present invention has a sufficient detergency and a moist feeling after cleaning, and the sliminess after cleaning is reduced, Low temperature stability was good.
On the other hand, in Comparative Examples 1 to 10, sufficient effects were not obtained.
That is, since the comparative example 1 did not mix | blend a component (a), reduction of the sliminess after washing was inadequate.
Since the comparative example 2 used component (a) more than 0.3 mass%, the cleaning power and low temperature stability were inadequate.
In Comparative Example 3, the component (b) was used in an amount of less than 5% by mass, so the detergency was insufficient.
In Comparative Example 4, the component (b) was used in an amount of more than 30% by mass, and therefore, the reduction in washing-up and the low-temperature stability were insufficient.
In Comparative Example 5, since cocoyl isethionate was used in place of the component (b), the moist feeling after washing was insufficient.

In Comparative Example 6, since the mass ratio [a / b] of the content of the component (a) to the content of the component (b) is smaller than 5 × 10 ⁻⁵ , the reduction of the washout was insufficient. .
In Comparative Example 7, since the mass ratio [a / b] of the content of the component (a) to the content of the component (b) is larger than 5 × 10 ⁻² , the detergency was insufficient.
In Comparative Example 8, since a polymer not containing the formula (3a) was used instead of the component (a), the reduction in the degree of washing after washing was insufficient.

In Comparative Example 9, the molar ratios n2 and n3 of the structural units represented by the formulas (2a) and (3a) are replaced with the molar ratio n1 of the structural units represented by the formula (1a) instead of the component (a) On the other hand, when n1 = 100, since the polymer smaller than 1 was used, the reduction of the wetness after washing was insufficient.
In Comparative Example 10, the polymer not containing the formula (2a) and the formula (3a) was used instead of the component (a), so that the reduction in washing-up was insufficient.
The liquid detergent composition was evaluated as in the following examples.

(Example 9) Blending ratio (mass%)
(A) Polymer 1-1 0.03
(B) Cocoyl methyl taurine Na 15.00
(C) Ion-exchanged water 80.15
(Other ingredients)
Lauramino diacetate sodium 1.00
Lauryl hydroxy sulfobetaine 1.00
Sodium citrate 0.95
Polyethylene glycol 1000 0.50
Polyethylene glycol 1540 0.50
Ethanol 0.20
Methyl paraben 0.20
Flavoring 0.10
Phenoxyethanol 0.10
Dipotassium glycyrrhizinate 0.10
Citric acid 0.05
EDTA-2 sodium 0.05
Etidronic acid tetrasodium 0.05
Tocopherol 0.02
Total mass 100.00

(Example 10) Blending ratio (mass%)
(A) Polymer 1-1 0.03
(B) lauroyl methyl alanine Na 15.00
(C) Ion-exchanged water 80.15
(Other ingredients)
2-alkyl-N-carboxymethyl-N-
Hydroxyethylimidazolinium Betaine 1.00
Coconut oil fatty acid amidopropyl betaine 1.00
Coconut oil fatty acid diethanolamide 1.00
Sodium citrate 0.95
Ethanol 0.20
Methyl paraben 0.20
Flavoring 0.10
Dipotassium glycyrrhizinate 0.10
Phenoxyethanol 0.10
Citric acid 0.05
EDTA-4 sodium 0.05
Etidronic acid tetrasodium 0.05
Tocopheryl acetate 0.02
Total mass 100.00

  The liquid detergent compositions of Examples (9) and (10) reduced the sliminess of washing while having high detergency, moist feeling after washing and low temperature stability.

  It is possible to provide a liquid detergent composition having high detergency, moist feeling after washing, and low temperature stability, and having reduced after-washing luster.

Claims (1)

It contains the following component (a), component (b) and component (c), the content of the component (a) is 0.001 to 0.3 mass%, and the content of the component (b) is 5 to 30% by mass, and the mass ratio [a / b] of the content of the component (a) to the content of the component (b) is 5 × 10 ^{−5 to} 5 × 10 ⁻² Liquid cleaning composition,
(A) A phosphorylcholine group-containing polymer having a weight average molecular weight of 5,000 to 2,000,000, having a structural unit represented by the following formulas (1a) to (3a):
(Wherein, R ¹ , R ² and R ⁵ each independently represent a hydrogen atom or a methyl group. R ³ and R ⁴ each independently represent a methyl group or an ethyl group. R ⁶ represents a carbon number. 12 to 24 each represents a monovalent hydrocarbon group, m represents an integer of 1 to 3. n1, n2 and n3 each represent a molar ratio of structural units, and n1: n2: n3 = 100: 1 to 400: 1 And 50.)
(B) Acyl amino acid type anionic surfactant whose acyl group has 6 to 18 carbon atoms, and (c) water.