JP2002121591A - Detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a detergent composition having a low irritation, an excellent foaming ability and foam stability as well as an excellent foam quality and satisfaction feeling after the finish of wash and also having a moderate detergency and a good time stability. SOLUTION: The detergent composition contains (a) an alkylimino bis(β- hydroxypropane sulfonic acid) salt expressed by general formula (1) (wherein, R1 is an 8-22C linear/branched alkyl or alkenyl group; and M1 and M2 are each hydrogen, an alkali metal, an alkali earth metal, an ammonium or an organic ammonium.) and (b) an anionic surfactant, with (a) being 0.5-35 wt.%, (b) being 0.4-25 wt.%, (a+b) being 3-50 wt.%, and a weight ratio of a/b being 20/1-1/8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is hypoallergenic, excellent in foaming properties, foam stability, good foam quality, excellent in use feeling after washing, has an appropriate detergency, and is stable with time. The present invention relates to a cleaning composition having good properties.

[0002]

2. Description of the Related Art Anionic surfactants, which have been used as a main ingredient in body cleansing agents, have excellent detergency and foaming power. However, when an anionic surfactant is used alone, the skin is rough and rough due to too strong detergency, and the feeling of use is poor due to a strong slimy feeling. So, in order to make use of the detergency and foaming power of anionic surfactants, we used amphoteric surfactants such as alkyl betaine, amidopropyl betaine and imidazolinium betaine, which are said to have relatively low irritation. By combining an anionic surfactant or a nonionic surfactant such as diethanolamide or monoethanolamide, a measure is taken to alleviate irritation and to improve foam quality and usability.

[0003] Although these attempts have achieved some effects, they have many unsolved disadvantages. For example, JP-A-11-29446 discloses a polyoxyethylene alkyl ether sulfate type anionic surfactant, an N-acylglutamic acid type anionic surfactant, an alkylbetaine type amphoteric surfactant or an amidobetaine type amphoteric surfactant. JP-A-6-49484 discloses a composition in which a surfactant is combined, and a composition in which an amide ether sulfate type anionic surfactant is combined with an imidazolinium betaine type amphoteric surfactant. However, although these have some degree of hypoallergenicity, they do not provide sufficient foaming power, have a slimy feeling during washing, leave a firm feeling after washing, do not obtain a refreshing feel, and have a rough foam quality . In addition, Tokuhei 2
No. 26677 discloses a composition in which an alkyloylalkyltaurine salt type anionic surfactant, an alkyloylamide betaine type amphoteric surfactant and an alkylolamide type nonionic surfactant are combined.
However, although this composition also has a certain degree of hypoallergenicity and high foaming properties, the foam quality is coarse, the foam does not have persistence, there is a slimy feeling at the time of washing, a feeling of tightness after washing remains, A refreshing feel cannot be obtained and a satisfactory feeling of use cannot be obtained. As described above, a satisfactory detergent composition has not yet been obtained with a combination of an anionic surfactant and an amphoteric surfactant or an alkylolamide-type nonionic surfactant.

[0004]

DISCLOSURE OF THE INVENTION The present invention has low irritation, excellent foaming properties, excellent foam stability, good foam quality, excellent feeling in use after washing, and has an appropriate detergency. The problem is to provide a detergent composition having good stability over time.

[0005]

That is, the present invention comprises the following (a) and (b), wherein (a) is 0.5 to 3
5% by weight, (b) is 0.4 to 25% by weight,
(A) + (b) is 3 to 50% by weight, and the weight ratio of (a) to (b) is 20/1 to 1/8. (A) alkyliminobis (β-
Hydroxypropanesulfonic acid) salt

[0006]

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Wherein R ¹ is a linear or branched alkyl or alkenyl group having 8 to 22 carbon atoms, M ¹ and M ²
Represents a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium or organic ammonium. (B) anionic surfactant

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The alkyliminobis (β-hydroxypropanesulfonic acid) salt represented by the formula (1)
¹ is a linear or branched alkyl or alkenyl group having 8 to 22 carbon atoms, and preferably, R ¹ has 12 carbon atoms.
~ 18 linear or branched alkyl or alkenyl groups. Specifically, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, heptadecyl group, octadecyl group, nonadecyl group, eicosyl group, henesicosyl group, docosyl group, Examples thereof include an octadecenyl group, an octadecadienyl group, and a mixture thereof such as a coconut oil alkyl group, a palm kernel oil alkyl group, and a tallow alkyl group. If the carbon number is 7 or less, irritation to hair and skin becomes strong, foaming property, foam stability is lowered, good foam quality is not obtained, and the feeling of use after washing is deteriorated,
The cleaning power is weak. If the number of carbon atoms is 23 or more, the foaming properties and foam stability are lowered, good foam quality is not obtained, the detergency becomes excessive, and the feeling of use after washing and the stability over time deteriorate.

M ¹ and M ² are a hydrogen atom, an alkali metal,
Alkaline earth metals, ammonium and organic ammonium, specifically lithium, sodium, potassium,
Examples thereof include マ グ ネ シ ウ ム magnesium, カ ル シ ウ ム calcium, monoethanolamine, diethanolamine, and triethanolamine. M ¹ and M ² may be the same or different.

The component (b) may be any anionic surfactant, such as fatty acid salt type anionic surfactant, alkyl sulfate type anionic surfactant, polyoxyethylene alkyl ether sulfate. Type anionic surfactant, polyoxyethylene fatty acid amide ether sulfate type anionic surfactant, acylmethyltaurine type anionic surfactant, acylamino acid type anionic surfactant, sulfosuccinic acid type anionic Surfactants and the like.

More specifically, the fatty acid has 8 carbon atoms.
A fatty acid salt type anionic surfactant having a fatty acid of -20 to 20 and a counter ion of an alkali metal, ammonium or organic ammonium, preferably a fatty acid having 10 to 18 carbon atoms and a counter ion of organic ammonium; The number is 8 to 20 and the counter ion is a hydrogen atom, an alkali metal,
Alkaline earth metal, ammonium or organic ammonium, preferably an alkyl sulfate type anionic surfactant having an alkyl group having 10 to 18 carbon atoms and a counter ion being an alkali metal or organic ammonium, and an alkyl group having 8 to 8 carbon atoms 20, the average number of moles of ethylene oxide added is 2
4. A counter ion is a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium or organic ammonium, preferably an alkyl group having 10 to 18 carbon atoms, an average addition mole number of ethylene oxide of 2 to 4 and a counter ion being an alkali metal or A polyoxyethylene alkyl ether sulfate type anionic surfactant which is an organic ammonium, the acyl group has 8 to 20 carbon atoms, the average addition mole number of ethylene oxide is 2 to 4, and the counter ion is a hydrogen atom, an alkali metal, or an alkaline earth. A polyoxy group which is a class of metals, ammonium or organic ammonium, preferably an acyl group having 10 to 18 carbon atoms, an average addition mole number of ethylene oxide of 2 to 4 and a counter ion of an alkali metal, alkaline earth metal or organic ammonium. Ethylene fatty acid amide ether sulfate type anionic surfactant Carbon atoms counterion is a hydrogen atom in the 8-20 acyl group, an alkali metal, alkaline earth metal,
Ammonium or organic ammonium, preferably an acylmethyltaurine type anionic surfactant having 10 to 18 carbon atoms of an acyl group and a counter ion of an alkali metal or organic ammonium, and having 8 to 2 carbon atoms of an acyl group.
0 is an alkali metal salt, an ammonium salt, or an organic ammonium salt of acylglutamic acid or acylsarcosine, and preferably an acylamino acid which is an alkali metal salt or an organic ammonium salt of acylglutamic acid or acylsarcosine having 10 to 18 carbon atoms of an acyl group. Type anionic surfactant, the acyl group having 8 to 2 carbon atoms
0, a counter ion is a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium or organic ammonium, preferably a sulfosuccinate type anion wherein the acyl group has 10 to 18 carbon atoms and the counter ion is an alkali metal or organic ammonium Surfactants. Preferred anionic surfactants include polyoxyethylene amide ether sulfate-type anionic surfactants, acylmethyltaurine-type anionic surfactants, acylamino acid-type anionic surfactants, and sulfosuccinate-type anionic surfactants. Examples of the surfactant include surfactants, and more preferred are acylmethyltaurine-type anionic surfactants.

(A) is 0.5 to 35% by weight, preferably 0.6 to 33% by weight. If (a) is less than 0.5% by weight, the foaming properties and foam stability are lowered, good foam quality, no refreshing feeling after washing are obtained, and the washing power is weakened. If (a) is more than 35% by weight, the feeling of tightness of the skin after washing becomes strong, and the feeling of freshness after washing cannot be obtained.

(B) is 0.4 to 25% by weight, preferably 0.5 to 23% by weight. If (b) is less than 0.4% by weight, the foaming properties and foam stability are lowered, good foam quality, no refreshing feeling after washing are obtained, and the washing power is weakened. When (b) is more than 25% by weight, irritation becomes strong, good foam quality, no refreshing feeling after washing is obtained, and a slimy feeling at the time of washing and a firm feeling of the skin after washing become strong, and detergency. Becomes excessive, and the stability over time deteriorates.

(A) + (b) is 3 to 50% by weight;
Preferably it is 5-45% by weight. (A) + (b) is 3
If the content is less than 10% by weight, the foaming properties and foam stability are lowered, good foam quality and a refreshing feeling after washing are not obtained, and the washing power is weakened. When (a) + (b) is more than 50% by weight, irritation becomes strong, the slimy feeling at the time of washing and the firmness of the skin after washing become strong, the freshness after washing cannot be obtained, and the detergency is low. It becomes excessive and the stability with time deteriorates.

The weight ratio of (a) and (b) is (a) / (b)
Is 20/1 to 1/8, preferably 15/1 to 1 /
6. When (a) / (b) is larger than 20/1, the feeling of tightness of the skin after washing becomes strong, and the feeling of freshness after washing cannot be obtained. When (a) / (b) is less than 1/8, the irritancy becomes strong, the foam stability becomes low, good foam quality and a refreshing feeling after washing cannot be obtained, a slimy feeling during washing and after washing. The skin becomes tight, the detergency becomes excessive, and the stability over time deteriorates.

[0016] The detergent composition of the present invention may contain, if desired, components generally incorporated, for example, higher alcohols such as cetanol and stearyl alcohol, and polyhydric alcohols such as glycerin, ethylene glycol, propylene glycol and 1,3-butanediol. Oils such as squalane, jojoba oil, olive oil, castor oil, lanolin, lecithin, cellulose ether type cationic polymer compound, cationic polyvinyl pyrrolidone derivative, cationic polyacrylic acid derivative, cationic polyamide derivative, Polydimethyldiallylammonium chloride, copolymers of dimethyldiallylammonium chloride and acrylic acid amide, cationic polymer compounds such as alkyl polyethyleneimine, highly polymerized methylpolysiloxane, dimethylsiloxane methyl (polyoxyethylene Silicone derivatives such as siloxane copolymers, pearling agents such as ethylene glycol distearate, styrene polymers, preservatives such as paraoxybenzoate, sodium benzoate, and phenoxyethanol; 5-methyl-2-isopropylcyclohexanol; Tonic agents such as ethylenediaminetetraacetate, citric acid, chelating agents such as trisodium nitrilotriacetate, benzophenone derivatives, ultraviolet absorbers such as benzotriazole derivatives, dyes and fragrances to such an extent that the effects of the present invention are not impaired. it can.

[0017]

The cleaning composition of the present invention has low irritation,
Hair shampoo composition, body shampoo composition with excellent foaming properties, foam stability, good foam quality, excellent feeling after washing, moderate detergency, and good stability over time It can be used for products, hand soap compositions, facial cleansing compositions, dishwashing detergent compositions and the like.

[0018]

EXAMPLES The present invention will be specifically described with reference to examples. The test methods and evaluation methods performed in the examples are described below. (1) Skin irritation Evaluated by the protein denaturation rate. That is, 0.025 ovalbumin was determined by aqueous high performance liquid chromatography.
The height of the absorption peak at 220 nm was measured for a sample prepared so as to have a sample concentration of 1% using a pH 7 buffer solution having a weight% concentration, and the protein denaturation rate was determined by the following equation. Protein denaturation rate (%) = [(HO-HS) / HO] × 10
0 HO: height of the absorption peak when no sample was added HS: height of the absorption peak when the sample was added The protein was evaluated by the following three steps based on the protein denaturation rate. Low skin irritation. (Protein denaturation less than 30%) Moderate skin irritation. (Protein denaturation rate 30% or more and 60%
Less) Strong skin irritation. (Protein denaturation rate 60% or more)

(2) Foaming property The aqueous solution prepared so that the cleaning composition had a concentration of 1% by weight in terms of the effective component was measured at 40 ° C. immediately after the introduction of the sample and 5 minutes later by the Rossmiles method. did. A composition having a good foaming property having a foam height of 150 mm or more immediately after sample introduction is regarded as a composition having a good foaming property, and a composition having a foaming rate of 90% or more determined by the following formula is used as a composition having a good foaming property. evaluated. Foam persistence rate (%) = [(foam height after 5 minutes) / (foam height immediately after sample introduction)] × 100 (3) Foam quality Twenty women are panelists, and 5 g of the detergent composition is used. The foam quality when the fingers were washed was evaluated. 2 points when the foam felt fine and well-extended, 1 when the foam felt slightly coarse
If the point is felt that the foam is coarse and easy to break
The total value of the names was determined and evaluated in the following three stages. Good foam quality. (Total value 30 points or more) The foam quality is slightly poor. (Total value 20 or more and less than 30 points) Foam quality is poor. (Less than 20 points in total)

(4) Detergency A Terg-O-tometer was prepared using an aqueous solution prepared so that the detergent composition had a concentration of 1% by weight of the effective component.
Then, the artificially-contaminated wool muslin cloth is heated at 40 ° C. and 70 rpm.
m, washing for 10 minutes. After drying the contaminated cloth, the surface reflectance was measured with a color computer, the detergency was calculated from the following equation, and evaluated in the following three steps. Detergency (%) = (A / B) × 100 A: (Reflectance of contaminated cloth after cleaning) − (Reflectance of contaminated cloth before cleaning) B: (Reflectance of wool muslin) − (Reflectance of wool muslin) (Reflectance of stained cloth) Excessive cleaning power. (60% or more of detergency) Good detergency. (25% or more and less than 60% of detergency) Detergency is weak. (Less than 25% of detergency) (5) Sliminess at the time of washing Twenty women were panelists, and the slimming at the time of washing their fingers with 5 g of the detergent composition was evaluated. The total value of 20 people was calculated by setting 2 points when they did not feel slimy, 1 point when they felt slightly slimy, and 0 when they felt that slimy feeling was persistent and it took time to rinse. , Next 3
It was evaluated on a scale. There is no slimy feeling. (Total value 30 points or more) Somewhat slimy feeling. (Total value is 20 points or more and less than 30 points) A slimy feeling is strong. (Less than 20 points in total)

(6) Skin Tightness After Washing Twenty women were panelists, and the skin tightness after washing their fingers with 5 g of the detergent composition was evaluated. The total value of the 20 subjects was calculated based on the following three grades, with 2 points when the skin was not firmly felt at all, 1 point when the skin was slightly firmed, and 0 when the skin felt very firm. . I don't feel tight. (Total value 30 points or more) There is a feeling of slight tension. (Average value is 20 points or more and less than 30 points) The feeling of tightness is strong. (Average value is less than 20 points) (7) Refreshing Feeling after Washing Twenty women were panelists, and the refreshing feeling after washing their fingers with 5 g of the detergent composition was evaluated. The total score of the 20 people was calculated based on the following three grades, with 2 points for feeling very refreshing, 1 point for feeling not very refreshing, and 0 point for feeling not refreshing at all. did. A sufficient refreshing feeling is obtained. (Total value 30 points or more) A refreshing feeling is not obtained much. (Total 20 points or more 3
(Less than 0 point) Refreshing feeling cannot be obtained. (Less than 20 points in total)

(8) Stability over time The detergent composition was stored at -5 ° C for 12 hours and then at 45 ° C for 12 hours, and this was repeated daily for one month. The appearance of the cleaning composition was observed and evaluated in the following two stages. 〇: Good stability. (No change in appearance for one month) ×: Poor stability. (Separation or precipitation is recognized or solidified within one month) Examples 1 to 25 and Comparative Examples 1 to 21 The cleaning compositions shown in Tables 1 to 10 were prepared and evaluated as described above. The results are shown in Tables 1 to 10.

The abbreviations in the table are as follows. Surfactant 1: R ^{1 in the} formula (1) is a dodecyl group, M ¹ is a hydrogen atom, and M ² is sodium. Surfactant 2: R ^{1 in the} formula (1) is a tetradecyl group, M ¹ is a hydrogen atom, and M ² is potassium. Surfactant 3: R ^{1 in the} formula (1) is a dodecyl group, M ¹ is a hydrogen atom, and M ² is triethanolamine. Surfactant 4: R ^{1 in the} formula (1) is a hexadecyl group, M ¹ is a hydrogen atom, and M ² is sodium. R ² CONR ³ (CH ₂ CH ₂ O) n SO ₃ M ³ (2) Anionic surfactant 1: In formula (2), R ² CO is a coconut oil acyl group, R ³ is a hydrogen atom, n is 4, M ³ is sodium. Anionic surfactant 2: R ² CO in the formula (2) is a myristoyl group, R ³ is a hydrogen atom, n is 4, and M ³ is マ グ ネ シ ウ ム magnesium. Anionic surfactant 3: R ² CO in the formula (2) is a lauroyl group, R ³ is a methyl group, n is 3, and M ³ is sodium.

[0024]

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Anionic surfactant 4: R ^{4 of the} formula (3)
CO is a lauroyl group, R ⁵ is a methyl group, and M ⁴ is sodium. Anionic surfactant 5: R ⁴ CO in the formula (3) is a coconut oil acyl group, R ⁵ is a methyl group, and M ⁴ is sodium. Anionic surfactant 6: R ⁴ CO in the formula (3) is a coconut oil acyl group, R ⁵ is a methyl group, and M ⁴ is マ グ ネ シ ウ ム magnesium. Anionic surfactant 7: R ⁴ CO in the formula (3) is a lauroyl group, R ⁵ is a hydrogen atom, and M ⁴ is potassium. Anionic surfactant 8: (3) wherein R ⁴ CO is a coconut oil acyl group, R ⁵ is a methyl group, and M ⁴ is sodium taurine. Anionic surfactant 9: R ² CO in the formula (2) is a coconut oil acyl group, R ³ is hydrogen, n is 4, and M ³ is sodium. Anionic surfactant 10: R ⁴ CO in the formula (3) is a lauroyl group, R ⁵ is a methyl group, and M ⁴ is sodium.

[0026]

[Table 1]

[0027]

[Table 2]

[0028]

[Table 3]

[0029]

[Table 4]

From Tables 1 to 4, it can be seen that the cleaning compositions of Examples 1 to 10 of the present invention have low irritation, excellent foaming properties, excellent feeling upon use after washing, have appropriate detergency, and It turns out that it is a cleaning composition with good aging stability. Since the detergent composition of Comparative Example 1 contains less than 0.5% by weight of (a), the foaming properties and foam stability are low, good foam quality, no refreshing feeling after washing, and detergency. Is weak. Since the detergent composition of Comparative Example 2 contained (a) + (b) in excess of 50% by weight, irritation was increased, the slimy feeling during washing and the firmness of the skin after washing were enhanced, and The subsequent refreshing feeling cannot be obtained, the detergency becomes excessive, and the stability over time is poor. Comparative Example 3
Since the weight ratio of (a) / (b) is smaller than 1/8, the irritation becomes stronger and the foam stability becomes lower,
Good foam quality and a refreshing feeling after washing cannot be obtained, and a slimy feeling at the time of washing and a firm feeling of the skin after washing become strong, the detergency becomes excessive, and the stability over time is poor. Comparative Example 4
Since the weight ratio of (a) / (b) is greater than 20/1, the cleansing composition of (1) has a strong feeling of tightness of the skin after washing, and does not provide a fresh feeling after washing. In the cleaning composition of Comparative Example 5, since (a) + (b) is less than 3% by weight, foaming properties and foam stability are low, and good foam quality and a refreshing feeling after washing cannot be obtained. Low cleaning power. Since the detergent composition of Comparative Example 6 contains (b) in an amount of more than 25% by weight, the irritation is increased, the slimy feeling at the time of washing and the firmness of the skin after washing are enhanced, and good foam quality and A refreshing feeling after washing cannot be obtained, the washing power becomes excessive, and the stability over time is poor. The cleaning composition of Comparative Example 7 had a weight ratio of (a) / (b) of 1/8.
Because it is smaller, irritation becomes stronger, foam stability becomes lower, good foam quality and refreshing feeling after washing cannot be obtained,
The slimy feeling during washing and the tightness of the skin after washing become strong, the washing power becomes excessive, and the stability over time is poor. In the detergent composition of Comparative Example 8, since (a) exceeds 35% by weight, a refreshing feeling after washing cannot be obtained, and a firm feeling of the skin after washing becomes strong. Since the cleaning composition of Comparative Example 9 contains less than 0.4% by weight of (b), the foaming properties and foam stability are low, good foam quality, no refreshing feeling after washing, and detergency Is weak.

[0031]

[Table 5]

[0032]

[Table 6]

[0033]

[Table 7]

From Tables 5 to 7, it can be seen from Examples 11 to 19 of the present invention.
It can be seen that the detergent composition of (1) is a hypoallergenic, excellent foaming property, excellent feeling upon use after washing, has an appropriate detergency, and has good stability over time. In the cleaning composition of Comparative Example 10, since (a) + (b) is less than 3% by weight, foaming properties and foam stability are low, and good foam quality and a refreshing feeling after washing cannot be obtained. Low cleaning power. Comparative Example 1
(A) + (b) is more than 50% by weight, the irritation, the slimy feeling at the time of washing, and the firmness of the skin after washing become stronger, The subsequent refreshing feeling cannot be obtained, the detergency becomes excessive, and the stability over time is poor. Since the weight ratio (a) / (b) of the detergent composition of Comparative Example 12 was smaller than 1/8, the irritation was increased, the foam stability was reduced, and the foam quality and the refreshing feeling after washing were good. , The slimy feeling during washing and the firmness of the skin after washing become strong, the washing power becomes excessive, and the stability over time is poor. Since the weight ratio of (a) / (b) in the cleaning composition of Comparative Example 13 is larger than 20/1, the feeling of tightness of the skin after washing becomes strong and the feeling of freshness after washing cannot be obtained. In the cleaning composition of Comparative Example 14, since (a) + (b) is less than 3% by weight, foaming properties and foam stability are low, and good foam quality and a refreshing feeling after washing cannot be obtained. Low cleaning power.
Since the cleaning composition of Comparative Example 15 contained (a) + (b) in an amount exceeding 50% by weight, irritation was increased, and a slimy feeling at the time of washing and a firm feeling of the skin after washing became strong. The subsequent refreshing feeling cannot be obtained, the detergency becomes excessive, and the stability over time is poor. The cleaning composition of Comparative Example 16 was (a) /
Since the weight ratio of (b) is smaller than 1/8, irritation becomes strong, foam stability becomes low, good foam quality and a refreshing feeling after washing cannot be obtained, a slimy feeling during washing and after washing. The skin becomes tighter, the detergency becomes excessive, and the stability over time is poor. The cleaning composition of Comparative Example 17 was (a) /
Since the weight ratio of (b) is larger than 20/1, the feeling of tightness of the skin after washing becomes strong, and the feeling of freshness after washing cannot be obtained.

[0035]

[Table 8]

[0036]

[Table 9]

[0037]

[Table 10]

From Tables 8 to 10, it can be seen from Examples 20 to 2 of the present invention.
The cleaning composition of No. 5 is hypoallergenic, excellent in foaming properties, excellent in use feeling after washing, has an appropriate detergency, and has good stability over time. Comparative Example 18
(A) + (b) is less than 3% by weight, the foaming properties and foam stability are low, good foam quality and a refreshing feeling after washing cannot be obtained, and the cleaning power of weak. Since the cleaning composition of Comparative Example 19 contained (a) + (b) in an amount exceeding 50% by weight, irritation was increased, and a slimy feeling at the time of washing and a firm feeling of the skin after washing became strong. The subsequent refreshing feeling cannot be obtained, the detergency becomes excessive, and the stability over time is poor. Since the cleaning composition of Comparative Example 20 had a weight ratio of (a) / (b) of less than 1/8, the irritation was strong, the foam stability was low, the foam quality was good, and the refreshing feeling after washing was good. , The slimy feeling during washing and the tightness of the skin after washing become strong, the washing power becomes excessive, and the stability over time is poor. Since the cleaning composition of Comparative Example 21 has a weight ratio of (a) / (b) of more than 20/1, it does not provide a feeling of cleansing the skin after washing and a feeling of refreshing after washing. Comparative Example 2
Since the weight ratio of (a) / (b) is smaller than 1/8, the cleaning composition of No. 2 has strong irritation, low foam stability, and cannot obtain good foam quality. The feeling of sliminess and the firmness of the skin after washing become strong, the feeling of freshness after washing cannot be obtained, the detergency becomes excessive, and the stability over time is poor.
Since the detergent composition of Comparative Example 23 was a combination of an anionic surfactant and a conventional amphoteric surfactant, the irritation was increased, the foaming property was reduced, and good foam quality was not obtained. The feeling of sliminess and the firmness of the skin after washing become strong, and the feeling of freshness after washing cannot be obtained. Since the detergent composition of Comparative Example 24 was a combination of an anionic surfactant and a conventional amphoteric surfactant, the irritation was increased, the foaming property was reduced, and good foam quality was not obtained. The feeling of sliminess and the firmness of the skin after washing become strong, and the feeling of freshness after washing cannot be obtained. Since the detergent composition of Comparative Example 25 combines an anionic surfactant, a conventional amphoteric surfactant and a nonionic surfactant, the irritation becomes stronger, the foam stability becomes lower, and the foam quality becomes better. , The slimy feeling during washing and the tightness of the skin after washing become strong, and the fresh feeling after washing cannot be obtained.

Claims (1)

[Claims] 1. It comprises the following (a) and (b):
(A) is 0.5 to 35% by weight, and (b) is 0.4 to 35% by weight.
25% by weight, (a) + (b) is 3 to 50% by weight, and the weight ratio of (a) to (b) is 20/1 to 1/8. object. (A) alkyliminobis (β-
Hydroxypropanesulfonic acid) salt (Wherein R ¹ is a linear or branched alkyl or alkenyl group having 8 to 22 carbon atoms, M ¹ and M ² are hydrogen atoms,
Indicates alkali metal, alkaline earth metal, ammonium and organic ammonium. (B) anionic surfactant