JPH061997A - Cleansing agent composition - Google Patents

Abstract

PURPOSE:To obtain a cleansing agent composition favorable in low irritation, foamability, stability with the lapse of time and use feeling and containing an amide ether sulfate type anionic surfactant and an acyl alkyl taurate type anionic surfactant in a specific ratio. CONSTITUTION:The objective cleansing agent composition is obtained by blending (A) an amide ether sulfate type anionic surfactant expressed by formula I [R<1>CO is 10-22C aliphatic acyl; R<2> is H or 1-3C alkyl; (n) is 2-15; M<1> is 1/2 calcium or 1/2 magnesium) with (B) an acyl alkyl taurate type anionic surfactant expressed by formula II (R<3>CO is 10-22C aliphatic acyl; R<4> is 1-3C alkyl; M<2> is alkali metal, 1/2 alkali earth metal, ammonium or organic ammonium) or an acylisethionate type anionic surfactant of formula III (R<5>CO is 10-22C aliphatic acyl; M<3> is same as M<2>) in an amount of these components (A+B) of 5-40wt.% and weight ratio of the component A/the component B of (10/1) to (1/10) to provide the objective cleansing agent composition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition which is hypoallergenic and has excellent foaming properties, stability over time, and usability.

[0002]

2. Description of the Related Art In recent years, there has been a demand for a mild detergent composition that is "friendly to the skin and hair" because of increased consumer awareness of safety such as rough skin and damaged hair. Attempts have been made to use a mild surfactant as such a detergent composition, and examples of such a surfactant include amide ether sulfate type anionic surfactants. Examples of the detergent composition using the amide ether sulfate type anionic surfactant include a detergent composition in which an acyl glutamate type anionic surfactant is combined (JP-A-2-235999), acyl-β- A detergent composition in which an alaninate-type anionic surfactant is combined (JP-A-2-222493) and a detergent composition in which a sulfosuccinate salt-type anionic surfactant is combined (JP-A-2-23229)
No. 8), a detergent composition in which an alkyl succinate-type anionic surfactant is combined (JP-A-62-1293).
No. 90), and a detergent composition in which an alkyl ether carboxylate type anionic surfactant is combined (Japanese Patent Application Laid-Open No. Hei 3 (1999) -311)
-95100).

[0003]

A conventional detergent composition using an amide ether sulfate type anionic surfactant uses an alkali metal salt such as sodium salt or an organic ammonium salt such as triethanol ammonium salt. . Although a detergent composition using a sodium salt of an amide ether sulfate type anionic surfactant is hypoallergenic, it is not preferable to contact it with a protein at a high concentration, and a hypoallergenic detergent composition. Things were being sought. Further, a detergent composition using a triethanolammonium salt of an amide ether sulfate type anionic surfactant is very low in irritation and preferable, but has a drawback that it is easily colored over time. Further, the detergent composition using the amide ether sulfate type anionic surfactant has the drawback that the foam is not elastic and the foam is not persistent.

The present invention solves the above problems and is hypoallergenic,
It is an object of the present invention to provide a detergent composition which is excellent in foamability, stability over time, and feeling in use.

[0005]

The present invention includes the following a),
A cleaning composition comprising b), wherein a) + b) is 5 to 40% by weight, and the weight ratio of a) to b) is 10/1 to 1/10. a) Amide ether sulfate type anionic surfactant represented by the formula (1) b) Acylalkyl taurate type anionic surfactant represented by the formula (2) or acyl isetio represented by the formula (3) Nate type anionic surfactant

[0006]

[Chemical 4]

[0007]

[Chemical 5]

[0008]

[Chemical 6]

The amide ether sulfate type anionic surfactant represented by the formula (1) of a) has an R ¹ CO of an aliphatic acyl group having 10 to 22 carbon atoms, for example, a lauroyl group, a myristoyl group, Examples thereof include a palmitoyl group, a stearoyl group, an oleoyl group, and a cocoyl group. When the carbon number is 9 or less, irritation to hair and skin becomes strong, and when the carbon number is 23 or more, foaming property decreases. R ² is hydrogen or an alkyl group having 1 to 3 carbon atoms, and examples thereof include a methyl group, an ethyl group and a propyl group. n is 2 to 15, and n
When it is less than 2, irritation to the hair and skin becomes strong, and when it exceeds 15, the foamability decreases. M ¹ is 1/2 calcium, 1
/ 2 magnesium.

The acylalkyl taurate-type anionic surfactant represented by the formula (2) of b) is an aliphatic acyl group having R ³ CO having 10 to 22 carbon atoms, for example, lauroyl group and myristoyl group. , Palmitoyl group, stearoyl group, oleoyl group, cocoyl group and the like. When the carbon number is 9 or less, irritation to hair and skin becomes strong, and when the carbon number is 23 or more, foaming property decreases. R ⁴ has 1 to 3 carbon atoms
And an alkyl group such as a methyl group, an ethyl group, and a propyl group. Examples of M ² include lithium, sodium, potassium, ½ calcium, ½ magnesium, ammonium, triethanolammonium, diethanolammonium, monoethanolammonium and the like.

In the acyl isethionate type anionic surfactant represented by the formula (3) of b), R ⁵ CO has 1 carbon atom.
It is an aliphatic acyl group of 0 to 22, and examples thereof include lauroyl group, myristoyl group, palmitoyl group, stearoyl group, oleoyl group, cocoyl group, and the like, and when the carbon number is 9 or less, irritation to hair and skin is strong. And has 2 carbons
When it is 3 or more, the foamability is lowered. Lithium as the M ^3,
Examples thereof include sodium, potassium, 1/2 calcium, 1/2 magnesium, ammonium, triethanol ammonium, diethanol ammonium and monoethanol ammonium.

A) + b) is 5 to 40% by weight, but 5
If it is less than 40% by weight, the foamability is poor, and if it exceeds 40% by weight, the irritation is strong. The weight ratio of a) to b) is 10/1 to 1/10, but 1
If it exceeds 0/1, the sustainability of the foam decreases, and if it is less than 1/10, the stability over time decreases.

The detergent composition of the present invention further comprises components that are commonly added, for example, amphoteric surfactants such as aminoacetic acid betaine-type amphoteric surfactants, amidobetaine-type amphoteric surfactants, and imidazoline-type amphoteric surfactants. Etc., nonionic surfactants such as alkyl polyoxyethylene ether type nonionic surfactants, higher fatty acid polyoxyethylene ester type nonionic surfactants, higher fatty acid polyhydric alcohol ester type nonionic surfactants Foaming agents such as fatty acids and higher alcohols, humectants such as glycerin and ethylene glycol, squalane, oils such as jojoba oil, olive oil, castor oil, lanolin and lecithin, cationic modified cellulose ether derivatives, polyvinylpyrrolidone derivatives No. 4 Ammonium salt, polyacrylic acid derivative quaternary ammonium salt Polyamide derivative quaternary ammonium salt, diallyldimethylammonium chloride polymer, copolymer of diallyldimethylammonium chloride and acrylamide, cationic polymer compound such as alkylpolyethyleneimine, and other natural extracts of animals and plants, fragrances, coloring agents, preservatives And the like can be appropriately blended within a range that does not impair the effects of the present invention.

[0014]

EXAMPLES The present invention will be specifically described with reference to examples. Examples 1 to 8 and Comparative Examples 1 to 12 The formulations shown in Tables 1 to 3 were prepared, and the performance as a body shampoo was evaluated by the following methods. The results are shown in Tables 1 to 3.
Shown in.

(1) Skin irritation The protein denaturation rate was evaluated. That is, using water-based high performance liquid chromatography, using a pH7 buffer solution with a concentration of 0.025 wt% ovalbumin, to measure the height of the absorption peak of 220nm when the sample was added to a sample concentration of 1%, The protein denaturation rate was calculated from the following formula. Protein denaturation rate = [(H0-HS) / H0] x 100 H0: Height of absorption peak when sample is not added HS: Height of absorption peak when sample is added evaluated. Very low skin irritation (protein denaturation rate of less than 30%) Weak skin irritation (protein denaturation rate of 30% to less than 60%) Moderate skin irritation (protein denaturation rate of 60% to less than 80%) Skin irritation Strong (protein denaturation rate of 80% or more)

(2) Foaming property An aqueous solution having a sample concentration of 1% was prepared and subjected to the Ross Miles method.
The foam height was measured at 25 ° C. immediately after the sample was charged and after 5 minutes. A cleaning agent having a foam height of 150 mm or more immediately after the sample was introduced and a foam retention rate of 90% or more obtained by the following formula was evaluated as a cleaning agent with good foaming. Persistence of foam = [(foam height after 5 minutes) / (foam height immediately after sample introduction)] x 100

(3) Feeling of sliminess after rinsing Twenty women were panelists, and 5 ml of the composition was taken on a sponge for bathing to wash fingers and forearms, and then about 40
The slimy feeling after rinsing three times while rinsing with 1 liter of warm water at ℃ was evaluated. 4 when you feel that you do not feel slimy
The average value of 20 people was calculated with 3 points if you felt that there was almost no slimy feeling, 2 points if you felt a little slimy feeling, 1 point if you felt a slimy feeling was persistent,
A cleaning agent having an average value of 3.0 or more was evaluated as a non-slicking detergent.

(4) Refreshing feeling after rinsing Twenty women were panelists, and 5 ml of the composition was taken on a sponge for bathing to wash fingers and forearms, and then about 40
The refreshing feeling after rinsing three times while flowing 1 liter of warm water at ℃ was evaluated. 4 points if you feel a refreshing feeling, 3 points if you feel a little refreshing feeling, 2 points if you feel little refreshing feeling, 1 point if you feel that there is no refreshing feeling at all As the average value of 20 people, the average value of 3.0 or more was evaluated as a cleaning agent having a refreshing feeling after cleaning.

(5) Stability over time The sample was stored at -5 ° C, 25 ° C and 45 ° C for 1 month, and its appearance was observed and evaluated according to the following three grades. ◯: Good stability (no change in appearance in transparent or slightly turbid state) Δ: Slightly poor stability (slightly cloudy or colored) ×: Poor stability (precipitation, solidification or marked coloring)

[0020]

[Table 1]

[0021]

[Table 2]

[0022]

[Table 3]

It can be seen from Tables 1 to 3 that the detergent compositions of Examples 1 to 8 of the present invention have low irritation, a sufficient refreshing feeling after use, and excellent foamability and stability over time. it is obvious. Comparative Example 1 containing only the component a) has a low foam retention rate.
Comparative Example 2 in which the component a) alone and M ¹ of the formula (1) is sodium is highly irritating and has a low foam retention rate. Comparative Example 3 in which the component (a) alone and M ¹ of the formula (1) is triethanolammonium have poor stability over time and a low foam retention rate. Comparative Example 4 in which M ^{1 of the} formula (1) is sodium is highly irritating. Comparative Example 5 in which M ^{1 of the} formula (1) is triethanolammonium has poor stability over time. a) + b)
Is less than 5% by weight, Comparative Example 6 has a low foaming property and a refreshing feeling after rinsing cannot be obtained. Comparative Example 7 in which a) + b) exceeds 40% by weight has strong irritation and has a slightly persistent slimy feel after rinsing. Comparative Example 8 in which the weight ratio of a) to b) exceeds 10/1 has a low foam retention rate. The weight ratio of a) and b) is 1 /
Comparative Example 9 of less than 10 has a persistent slimy feel after rinsing,
Poor stability over time. Comparative Example 10 using lauryl sulfate sodium salt in place of a) and Comparative Example 11 using polyoxyethylene (3 mol) lauryl ether sulfate sodium salt in place of a) had a strong irritancy and a bad feeling in use. Poor stability over time. Comparative Example 12 using polyoxyethylene (3 mol) lauryl ether sulphate magnesium salt in place of a) is highly irritating.

Example 9 A facial cleansing foam composition was prepared according to the formulation shown in Table 4 and evaluated. The results are shown in Table 4. When this face wash foam composition was evaluated, it was low in irritation, did not have a slimy feeling during use, and a refreshing feeling was obtained after use, and there was no feeling of tightness on the skin, and it was excellent in foamability and stability over time. .

[0025]

[Table 4]

The evaluation method of the facial cleansing foam composition was the same as the method of Examples 1 to 8 with respect to skin irritation, foaming property and stability with time, and the other methods were as follows. (1) Slickness during rinsing Twenty women were panelists, and the face was washed with 5 ml of the composition, and the slickness during rinsing was evaluated. 4 points when you feel no slimy feeling, 3 points when you feel almost no slimy feeling
The average value of 20 people was calculated with a score of 2, a feeling of sliminess was 2 points, and a feeling of sliminess was 1 point, and an average value of 3.0 or more was evaluated as a composition without sliminess. did.

(2) Refreshing sensation after washing the face With 20 women as panelists, the face was washed with 5 ml of the composition, and the refreshing sensation after rinsing was evaluated. 4 points when you feel a refreshing feeling, 3 points when you feel a refreshing feeling a little
20 points, 2 points when you feel that there is almost no refreshing feeling, 1 point when you feel that there is no refreshing feeling at all
The average value of the names was calculated, and an average value of 3.0 or more was evaluated as a composition having a refreshing feeling after washing the face.

(3) Tightening sensation on the skin after washing the face With 20 women as panelists, the face was washed with 5 ml of the composition, and the tingling sensation on the skin after rinsing was evaluated. If you feel that you do not have a tightness at all, 4 points, if you feel that you have little feeling of a tension, 3 points, if you feel that you have a slight tension, 2 points, and if you feel a strong tension, 1 point. ,
The average value of 20 persons was calculated, and an average value of 3.0 or more was evaluated as a composition having no tightness on the skin after washing the face.

Example 10 A hair shampoo composition was prepared according to the formulation shown in Table 5 and evaluated. The results are shown in Table 5. When this hair shampoo composition was evaluated, it was found to be low in irritation, easy to pass through the fingers during use, good to pass through after use, and excellent in conditioning effect, foaming property, and stability over time.

[0030]

[Table 5]

The hair shampoo composition was evaluated in the same manner as in Examples 1 to 8 for skin irritation, foaming property and stability over time.
The method is the same as the method described in (1) above, and the following methods were used for other items. (1) Finger passing when washing hair With 20 women as panelists, the finger passing when washing hair with 5 ml of the composition was evaluated. An average of 20 people, with 2 points if you feel that your fingers are smooth and your hair does not get caught, 1 point if you feel that your hair is slightly caught on your fingers, and 0 points if you feel that your fingering is very bad The value was determined, and an average value of 1.5 points or more was evaluated as a composition which is good for fingers to pass when washing hair.

(2) Combing after washing hair With 20 women as panelists, combing properties after washing and drying hair with 5 ml of the composition were evaluated. If the hair does not have a squeaky feeling and the comb passage is smooth, 2 points, if the hair feels a little caught on the comb, 1 point, and if the comb passage is very bad, 0 points. The average value of 20 persons was obtained, and an average value of 1.5 or more was evaluated as a composition having good combability after washing hair.

(3) Conditioning Effect After Washing Hair 20 women were used as panelists to evaluate the conditioning effect after washing and drying hair with 5 ml of the composition. 2 points if you feel that the conditioning effect is excellent, 1 point if you feel that the conditioning effect is obtained,
0 if you feel that the conditioning effect cannot be obtained
The average value of 20 persons was calculated as a point, and an average value of 1.5 points or more was evaluated as a composition having a good conditioning effect after washing hair.

Example 11 A body shampoo composition was prepared according to the formulation shown in Table 6 and evaluated by the following methods. The results are shown in Table 6. When this body shampoo composition was evaluated, it had low irritation, no slimy feeling during use, a sufficient refreshing feeling was obtained after use, no feeling of tightness on the skin, and foamability,
It was excellent in stability over time.

[0035]

[Table 6]

The body shampoo composition was evaluated by the above-mentioned Examples 1 to 8 regarding skin irritation, foaming property and stability over time.
The method is the same as the method described in (1) above, and the following methods were used for other items. (1) Slickness during rinsing Twenty women were panelists, 5 ml of the composition was placed on a sponge for bathing, and the body was washed to evaluate the slickness during rinsing. 4 points if you feel no slimy feeling, 3 points if you feel little slimy feeling, 2 points if you feel a little slimy feeling, 1 point if you feel that slimy feeling is persistent , Average of 20 people
A composition of 3.0 or more was evaluated as a composition having no slimy feel.

(2) Refreshing sensation after rinsing Twenty women were panelists, 5 ml of the composition was whipped on a bath sponge, the body was washed, and the refreshing sensation after rinsing was evaluated. 4 when you feel that you have a refreshing feeling
An average value of 20 people was calculated, with 3 points if you feel a little refreshing feeling, 2 points if you feel little refreshing feeling, and 1 point if you feel that there is no refreshing feeling at all. An average value of 3.0 or more was evaluated as a composition having a refreshing feeling after washing.

(3) Tightening of skin after rinsing Twenty women were panelists and 5 ml of the composition was whipped on a sponge for bathing to wash the body, and the sensation of tightness of the skin after rinsing was evaluated. If you feel that you do not have a tightness at all, 4 points, if you feel that you have little feeling of a tension, 3 points, if you feel that you have a slight tension, 2 points, and if you feel a strong tension, 1 point. The average value of 20 persons was calculated, and an average value of 3.0 or more was evaluated as a composition having no taut feeling.

Example 12 A hand soap composition was prepared according to the formulation shown in Table 7 and evaluated. The results are shown in Table 7. When this hand soap composition was evaluated, it had low irritation, no slimy feeling during use, a sufficient refreshing feeling was obtained after use, no feeling of tightness on the skin, foamability, and excellent stability over time. It was

[0040]

[Table 7]

The hand soap composition was evaluated in the same manner as in Examples 1 to 8 with respect to skin irritation, foaming property, slimy feeling during rinsing, refreshing feeling after rinsing, and stability over time. The items below were determined by the following method. (1) Tightening of skin after rinsing Twenty women were panelists, and their fingers and forearms were washed with 5 ml of the composition, and the tightness of skin after rinsing was evaluated. If you feel that you do not have a tightness at all, 4 points, if you feel that you have little feeling of a tension, 3 points, if you feel that you have a slight tension, 2 points, and if you feel a strong tension, 1 point. , Average of 20 people
A composition of 3.0 or more was evaluated as a composition having no tightness.

Example 13 A cleansing foam composition was prepared according to the formulation shown in Table 8 and evaluated. The results are shown in Table 8. Evaluation of this cleansing foam composition showed low irritation,
There was no slimy feel during use, a sufficient moist feel was obtained after use, no tightness on the skin, and excellent foamability and stability over time.

[0043]

[Table 8]

The cleansing foam composition was evaluated in the same manner as in the above Examples for skin irritation, foaming property and stability over time.
It was the same as the method of 1 to 8, and the other methods were as follows. (1) Slickness at the time of rinsing Twenty women were panelists, each of which had their face wet with a foundation and then washed with 5 g of the composition, and the slickness at the time of rinsing was evaluated. 4 points if you feel no slimy feeling, 3 points if you feel little slimy feeling, 2 points if you feel a little slimy feeling, 1 point if you feel that slimy feeling is persistent The average value of 20 persons was calculated, and an average value of 3.0 or more was evaluated as a composition having no slimy feel.

(2) Moisture feeling after rinsing Twenty women were panelists, each had their face wet with a foundation, and then washed with 5 g of the composition, and the moist feeling after rinsing was evaluated. 4 points when you feel moist, 3 points when you feel slightly moist,
The average value of 20 people was calculated with 2 points when it was felt that there was almost no moist feeling and 1 point when it was felt that there was no moist feeling at all, and a composition having a moist feeling after washing with an average value of 3.0 or more. evaluated.

(3) Tightening sensation of skin after rinsing Twenty women were panelists, each face was wetted with a foundation, washed with 5 g of the composition, and the sensation of tightness of skin after rinsing was evaluated. . If you feel that you do not have a tightness at all, 4 points, if you feel that you have little feeling of a tension, 3 points, if you feel that you have a slight tension, 2 points, and if you feel a strong tension, 1 point. The average value of 20 persons was calculated, and an average value of 3.0 or more was evaluated as a composition having no taut feeling.

Example 14 A dishwashing detergent composition was prepared according to the formulation shown in Table 9 and evaluated. The results are shown in Table 9. When this cleaning composition for tableware was evaluated, it had low irritation, excellent cleaning power, and excellent foamability and stability over time.

[0048]

[Table 9]

The method for evaluating the dishwashing detergent composition was the same as the method of Examples 1 to 8 with respect to skin irritation, foaming property, and stability over time, and the other methods were as follows. . (1) Detergency According to the detergency evaluation method of JIS K 3370, a detergency test was performed using a linatu tester, and the following criteria were used for evaluation by comparison with the test results obtained using an index detergent solution for detergency determination. ◯: Good detergency (obviously superior) △: Detergency is normal (almost no difference) ×: Poor detergency (obviously inferior)

[0050]

EFFECT OF THE INVENTION Since the detergent composition of the present invention is hypoallergenic, and has excellent foamability, stability over time, and feeling in use, it is a hair shampoo composition, a body shampoo composition, and a dishwashing detergent composition. It can be used for etc.

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Claims (1)

[Claims] 1. The following a) and b) are contained, a) + b) is 5 to 40% by weight, and the weight ratio of a) and b) is 10/1 to 1 /.
10. The cleaning composition, which is 10. a) Amide ether sulfate type anionic surfactant represented by the formula (1) b) Acylalkyl taurate type anionic surfactant represented by the formula (2) or acyl isetio represented by the formula (3) Nate type anionic surfactant [Chemical formula 1] [Chemical 2] [Chemical 3]