JP2007169248A - Liquid skin cleanser composition - Google Patents

Abstract

[PROBLEMS] To provide a refreshing feel during rinsing, less irritation to the skin and less bulkiness after use, excellent low-temperature stability, less spilling from the hand, quick foaming even with a small amount of use, and sufficient To provide a liquid skin cleanser composition that has a suitable amount of foam and is suitable for washing hands and fingers on the go for portable use.
(A) Fatty acid salt of 10 to 30% by mass (however, in the composition of the fatty acid salt,
(B) the proportion of laurate is 50% by mass or more),
(C) A nonionic surfactant is contained in such an amount that the mass ratio with the fatty acid salt is nonionic surfactant / fatty acid salt = 1/20 to 1/5, and (D) Containing 0.5 to 2 mass% of water-soluble polymer,
And the liquid skin cleansing composition characterized by the viscosity in 25 degreeC being 1-10 Pa.s.
[Selection figure] None

Description

  The present invention relates to a liquid skin cleanser composition. More specifically, the present invention has a refreshing feel when rinsing, less irritation to the skin and a feeling of bulkiness after use, excellent low temperature stability, hardly spills from the hand, The present invention relates to a liquid skin cleanser composition that is fast and has a sufficient amount of foam, and is particularly suitable as a portable hand-washing product for washing hands on the go.

  For example, paper soap is known as a portable skin cleanser suitable for washing fingers on the go (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3). In addition, a cleaning agent in which powdered soap is individually packaged (for example, see Patent Document 4), a cleaning agent in which a solid soap is put in a portable container (for example, see Patent Document 5), a soft capsule or a particulate form. A cleaning agent (see, for example, Patent Document 6, Patent Document 7, and Patent Document 8) has also been proposed. However, these solid detergents have not obtained sufficient performance in terms of foaming speed and feel after washing.

On the other hand, a liquid or paste-like cleaning agent is excellent in foaming speed compared with the above-described solid cleaning agent. In particular, it is known that a detergent containing a fatty acid salt as a detergent base is excellent in the amount of foam and ease of rinsing.
In addition, in detergents containing a fatty acid salt as a detergent base, a detergent containing a nonionic surfactant or a water-soluble polymer is added for the purpose of reducing skin irritation and improving the skin feel after rinsing. Agents are also disclosed (see, for example, Patent Document 9 and Patent Document 10). However, these cleaning agents are not intended for washing fingers on the go, and in consideration of portability, if the amount of use per use is reduced, the amount of foam or the speed of foaming However, sufficient performance was not obtained.

  Therefore, there is a demand for the development of a liquid skin cleanser composition that is fast in foaming even with a small amount of use and has a sufficient amount of foam, and that is suitable for washing fingers on the go as a portable device. It is.

JP-A-8-60199 JP 2001-13994 A JP 2003-73700 A JP 2004-211045 A JP 2002-20799 A JP 2004-277490 A Japanese Patent Laid-Open No. 2002-161297 JP 2001-48746 A JP 2002-128658 A JP 2004-35524 A

  An object of the present invention is to solve the conventional problems and achieve the following objects. In other words, the present invention has a refreshing feel during rinsing, less irritation to the skin and a feeling of bulkiness after use, excellent low-temperature stability, is difficult to spill from the hand, and even when used in a small amount, foaming is fast. An object of the present invention is to provide a liquid skin cleanser composition having a sufficient amount of foam.

Means for solving the problems are as follows. That is,
<1> (A) Fatty acid salt 10-30 mass% (however, in the composition of the fatty acid salt,
(B) the proportion of laurate is 50% by mass or more),
(C) A nonionic surfactant is contained in an amount such that the mass ratio of the nonionic surfactant to the fatty acid salt is nonionic surfactant (C) / fatty acid salt (A) = 1/20 to 1/5. And (D) 0.5 to 2% by mass of a water-soluble polymer
And it is a liquid skin cleansing composition characterized by the viscosity in 25 degreeC being 1-10 Pa.s.

  According to the present invention, the conventional problems can be solved. That is, according to the present invention, the feeling at the time of rinsing is refreshed, the feeling of irritation to the skin and the feeling of bulkiness after use are low, the stability at low temperature is excellent, and it is difficult to spill from the hand. It is possible to provide a liquid skin cleanser composition that is fast and has a sufficient amount of foam.

  Hereinafter, the present invention will be described in more detail.

(Liquid skin cleanser composition)
The liquid skin cleanser composition of the present invention comprises (A) a fatty acid salt (however, during the composition of the fatty acid salt,
(B) the proportion of laurate is 50% by mass or more), (C) a nonionic surfactant, and (D) a water-soluble polymer, and preferably further contains a polyhydric alcohol. If necessary, it further contains other components and has a viscosity within a specific range.

<Liquid>
The property of the liquid skin cleansing composition of the present invention is liquid, and it is necessary that the fatty acid salt is in a dissolved state in the composition.
The paste-like composition in which the fatty acid salt is deposited and the gel-like composition in which the fatty acid salt forms a liquid crystal structure are more suitable than the liquid composition. Since dispersibility is inferior, there is a problem that foaming is slow, and the usability is inferior particularly in applications where fingers are washed on the go.

<(A) Fatty acid salt, (B) Laurate>
As said (A) fatty acid salt, 50 mass% or more needs to be (B) lauric acid salt which is a C12 saturated fatty acid in the composition, and 60-80 mass% is lauric acid salt. It is preferable that
When the proportion of the laurate is less than 50% by mass in the composition of the fatty acid salt, there is a problem that the amount of foam at the time of washing cannot be sufficiently obtained with a small amount of use. Further, when the ratio of the laurate is less than 60% by mass, the amount of foam at the time of washing may be insufficient even with a small amount of use. When it exceeds 80% by mass, the skin at the time of washing or after washing. You may feel irritation.
On the other hand, if the proportion of the laurate is in the range of 60 to 80% by mass, a sufficient amount of foam can be obtained even with a small amount of use, and the skin can be stimulated during and after washing. It is advantageous in that it does not feel.
In the present specification, the “small amount of use” is not particularly limited, but usually indicates that the amount of use per use is 1 mL or less, and particularly 0.3 to 0.00. Indicates 5 mL.

  The fatty acid salt other than the laurate contained in the fatty acid salt composition is not particularly limited and can be appropriately selected from the fatty acid salts used in ordinary detergent compositions according to the purpose. Examples thereof include salts of saturated or unsaturated fatty acids having 8 to 22 carbon atoms other than the laurate. Among them, a salt of a saturated or unsaturated fatty acid having 12 to 16 carbon atoms is preferable and a salt of a saturated or unsaturated fatty acid having 12 to 14 carbon atoms is more preferable from the viewpoint of good foaming.

For fatty acid salts other than the laurate, there is no particular limitation on the ratio in the composition of the fatty acid salt, and can be appropriately selected according to the purpose, but the foam quality at the time of washing is improved, The ratio of the saturated fatty acid salt having 14 or more carbon atoms is preferably 20% by mass or more and more preferably 30% by mass or more in the composition of the fatty acid salt. When the ratio of the saturated fatty acid salt having 14 or more carbon atoms is less than 20% by mass in the composition of the fatty acid salt, the creaminess of the foam may be lowered, and the feel of the foam during use may be lowered. . On the other hand, when the ratio of the saturated fatty acid salt having 14 or more carbon atoms is 30% by mass or more in the composition of the fatty acid salt, the creaminess and smoothness of the foam are improved, and the skin is irritated. This is advantageous in terms of reduction.
Moreover, the upper limit of the ratio of the saturated fatty acid salt having 14 or more carbon atoms is less than 50% by mass. When the ratio is 50% by mass or more, there is a problem that the lauric acid does not satisfy the required amount and precipitation is likely to occur at low temperatures.

  The fatty acid salt is not particularly limited as long as the ratio of the laurate salt is within the above-described range in the composition, and according to the purpose among the fatty acid salts used in ordinary detergent compositions. Examples thereof include salts of coconut oil fatty acid, hardened coconut oil fatty acid, palm oil fatty acid, hardened palm oil fatty acid, beef tallow fatty acid, hardened beef tallow fatty acid, and the like.

  There is no restriction | limiting in particular as said salt, According to the objective, it can select suitably, For example, potassium salt, sodium salt, a triethanolamine salt, ammonium salt etc. are mentioned. Among these, potassium salts are particularly preferable in terms of deterioration in color tone and odor during long-term storage and low precipitation at low temperatures.

  The said fatty acid salt may be used individually by 1 type, and may use 2 or more types together.

  Content of the said fatty acid salt needs to be 10-30 mass% in the said liquid skin cleaning composition, and 10-20 mass% is preferable. When the content is less than 10% by mass, there is a problem that a sufficient amount of foam cannot be secured when the amount is small. On the other hand, if the content exceeds 30% by mass, precipitation of fatty acid salts is likely to occur under low temperature conditions, which is problematic in terms of stability. On the other hand, when the content is in the range of 10 to 20% by mass, even with a small amount of use, foaming is better, and precipitation of fatty acid salts at low temperatures is suppressed, so that the stability is more excellent. It is advantageous.

  In addition, when blending the fatty acid salt into the liquid skin cleanser composition, the fatty acid salt itself may be blended, or fatty acid and alkali are blended separately in the liquid skin cleanser composition. And may be used after neutralization.

<(C) Nonionic surfactant>
The (C) nonionic surfactant is not particularly limited and can be appropriately selected from nonionic surfactants used in ordinary detergent compositions according to the purpose. Oxyethylene fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene glycol, coconut oil fatty acid alkanolamide, sucrose fatty acid ester, alkyl Examples thereof include glycosides, alkyl glyceryl glycosides, and methyl glucoside fatty acid esters.
Further, as the nonionic surfactant, any one of one kind of polyoxyalkylene addition type nonionic surfactant and two or more kinds of polyoxyalkylene addition type nonionic surfactant can be suitably used. . Specifically, as the former, for example, fatty acid monoethanolamide type nonionic surfactant, fatty acid monoethanolamide type nonionic surfactant of ethylene oxide adduct, polyoxyethylene lauryl ether, polyoxyethylene sorbitan monooleate, polyethylene Examples include glycol fatty acid esters and polyoxyethylene hydrogenated castor oil. Examples of the latter include polyoxypropylene and polyoxyethylene lauryl ether.
Among the nonionic surfactants, is a polyoxyethylene alkyl ether having an alkyl group having a straight chain or branched chain structure having 16 to 22 carbon atoms and an average added mole number of ethylene oxide of 8 to 15? It is preferable in that the effect of suppressing the texture is high.

  The said nonionic surfactant may be used individually by 1 type, and may use 2 or more types together.

The content of the nonionic surfactant needs to be nonionic surfactant / fatty acid salt = 1/20 to 1/5 in terms of mass ratio with respect to the fatty acid salt. 15 to 1/5 is preferable, and 1/8 to 1/5 is more preferable.
If the content of the nonionic surfactant is less than 1/20 times the content of the fatty acid salt in terms of mass ratio, there is a problem that irritation is felt at the time of washing or that the feeling of bulkiness is felt after washing. On the other hand, when the content of the nonionic surfactant exceeds 1/5 times the content of the fatty acid salt in terms of mass ratio, there is a problem that a refreshing feeling during rinsing cannot be obtained. On the other hand, when the content of the nonionic surfactant is within the more preferable range, it is advantageous in that the feeling of refreshing feeling during rinsing is better without feeling irritation or bulkiness.

<(D) Water-soluble polymer>
The water-soluble polymer is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include water-soluble nonionic polymer substances such as polyvinyl alcohol, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, and carrageenan. , Alginic acid, carboxyvinyl polymer, methacrylic acid / acrylic acid ester copolymer, and the like. Among these, hydroxypropyl methylcellulose is preferable in that separation with time does not easily occur.

  The said water-soluble polymer may be used individually by 1 type, and may use 2 or more types together.

  The content of the water-soluble polymer needs to be 0.5 to 2% by mass in the liquid skin cleanser composition, preferably 0.5 to 1.5% by mass, 1.2 mass% is more preferable. If the content is less than 0.5% by mass, there is a problem that the effect of suppressing the feeling of bulkiness of the skin after washing is insufficient. Moreover, when the said content exceeds 2 mass%, there exists a problem that foaming becomes slow with the problem that the discharge property from a container worsens, and usability falls. In addition, there is a problem that a refreshing feel cannot be obtained due to the feeling of sliminess during rinsing. On the other hand, when the content is in the more preferable range, it is advantageous in that the feeling of bulkiness of the skin is further suppressed, foaming is quick, and the refreshing feel during rinsing is more excellent.

<Polyhydric alcohol>
The liquid skin cleansing composition of the present invention preferably further contains a polyhydric alcohol. Examples of the polyhydric alcohol include propylene glycol, dipropylene glycol, hexylene glycol, 1,3-butylene glycol, glycerin, sorbitol and the like.
The said polyhydric alcohol may be used individually by 1 type, and may use 2 or more types together.
The content of the polyhydric alcohol is preferably 10 to 30% by mass and more preferably 15 to 20% by mass in the liquid skin cleanser composition. When the content is less than 10% by mass, precipitation or precipitation derived from the fatty acid salt may occur at low temperatures, and even when the content exceeds 30% by mass, precipitation at low temperatures may not be substantially improved. .

<Other ingredients>
The other components are not particularly limited as long as they do not interfere with the effects of the present invention, and can be appropriately selected according to the purpose. For example, oils such as higher alcohols and silicone oils, lanolin derivatives , Protein derivatives, acrylic resin dispersions, drugs such as vitamins, bactericides, preservatives, pH adjusters, antioxidants, sequestering agents, UV absorbers, animal and plant extracts or their derivatives, dyes, fragrances, pigments, inorganic Examples thereof include powders, water-insoluble powders such as nylon and polyethylene.
The content of the other components is not particularly limited as long as it does not interfere with the effects of the present invention, and can be appropriately selected according to the purpose.

  There is no restriction | limiting in particular as said fragrance | flavor, According to the objective, it can select suitably, For example, the fragrance | flavor described in Unexamined-Japanese-Patent No. 2002-128658 is mentioned.

<Viscosity>
The liquid skin cleanser composition needs to have a viscosity measured by a B-type viscometer at 25 ° C. of 1 to 10 Pa · s, and preferably 2 to 6 Pa · s. When the viscosity is less than 1 Pa · s, there is a problem that when the liquid skin cleansing composition is discharged from the container onto the hand, the liquid tends to spill from the hand. Moreover, when the said viscosity exceeds 10 Pa.s, while the discharge property from a container worsens, there exists a problem that it does not foam quickly at the time of use. On the other hand, when the viscosity is within the preferred range, it is advantageous in that it is less likely to spill from the hand and bubbles more quickly when discharged onto the hand without deterioration of the dischargeability from the container. It is.

<Manufacturing method>
There is no restriction | limiting in particular as a manufacturing method of the said liquid skin cleaning composition, According to the objective, it can select suitably, For example, it can manufacture using the manufacturing method of a well-known cleaning composition.
Moreover, there is no restriction | limiting in particular as an apparatus used in order to manufacture the said liquid skin cleansing composition, Although it can select suitably according to the objective, For example, it can mix and shear the whole composition For example, a stirrer equipped with a plurality of stirring blades such as a propeller, a turbine, and a disper is preferable, and among them, an adihomo mixer, a backflow mixer, a hybrid mixer, and the like are particularly preferable.

<Container>
There is no restriction | limiting in particular as a container filled with the said liquid skin cleansing composition, According to the objective, it can select suitably according to the objective, For example, a bottle, a tube, a bag-like container etc. are mentioned. .
Further, the capacity of the container is not particularly limited and can be appropriately selected according to the purpose. However, in the case of carrying around and using it on the go, it is 100 mL or less from the viewpoint of ease of carrying. It is preferable that it is 50 mL or less.

  The bottle is not particularly limited and can be appropriately selected according to the purpose.For example, a bottle with a pump dispenser that can discharge a certain amount of contents by pushing the pump at the time of use, or at the time of use. A bottle or the like in which a small-diameter spout is combined with a resin-made main body that can discharge the contents by pushing the body of the bottle is preferable. Among these, a bottle in which a small-diameter spout is combined with the resin-made main body is more preferable in terms of being excellent in portability because the entire container can be reduced in size and being inexpensive because it has a simple structure.

  In the bottle with the pump dispenser, the discharge amount per pump is preferably 0.3 to 1 mL, and more preferably 0.3 to 0.5 mL. When the discharge amount is less than 0.3 mL, the amount of foam during use may be insufficient. When the discharge amount exceeds 1 mL, the number of times per product can be used when a small-capacity container is used. May decrease. On the other hand, when the discharge amount is within the more preferable range, it is advantageous in that the amount of foam during use becomes more sufficient and the number of times of use per product increases.

  In a bottle in which a small-diameter spout is combined with the resin main body, the diameter of the discharge port is not particularly limited and can be appropriately selected according to the purpose, but is preferably 0.5 to 2 mm. When the diameter is less than 0.5 mm, the consumer may feel that the content liquid is slowly discharged when used. When the diameter exceeds 2 mm, the discharged amount increases and is used per product. The number of times it can be done may be reduced.

  There is no restriction | limiting in particular as a material of the said bottle, According to the objective, it can select suitably from arbitrary resin used with the container of a liquid product, For example, polyethylene, a polypropylene, a polyethylene terephthalate etc. are mentioned. Among these, as described above, in the case of a bottle in which the body portion can be pushed and the contents can be discharged, and a small-diameter spout is combined with a resin body, low density polyethylene is used because of its flexibility. Particularly preferred is a made container.

<Application>
There is no restriction | limiting in particular in the said liquid skin cleansing composition, According to the objective, it can be used for the washing | cleaning of the skin in various scenes. Above all, the liquid skin cleanser composition has a refreshed feel when rinsing, has little irritation to the skin and a feeling of bulkiness after use, has excellent low-temperature stability, and does not easily spill from the hand, and is used in a small amount. However, since foaming is fast and there is a sufficient amount of foam, it is particularly useful for carrying around and washing hands on the go.
More specifically, the liquid skin cleanser composition is less likely to spill from the hand when discharged from the container onto the hand, the foaming is fast even with a small amount of use, and there is a sufficient amount of foam. Very useful for small children washing hands on the go. In addition, the liquid skin cleanser composition is easy to foam, and can be washed quickly in a short time. For example, when a mother with a child wants to wash his hands on the go with the child. It is also very useful.

  EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples and comparative examples, but the present invention is not limited to these examples. In addition, all the component amounts as described in the following examples are pure conversion. The numerical values in the following tables all represent “mass%” unless otherwise specified.

(Examples 1-10, Comparative Examples 1-11)
According to the composition shown in Tables 1-4, each liquid skin cleaning composition of Examples 1-10 and Comparative Examples 1-11 was prepared according to the conventional method.
About each obtained liquid skin washing | cleaning agent composition, according to the following evaluation method, (1) Amount of foam, (2) No sliminess at the time of rinsing (speed of rinsing), (3) No roughness after washing , (4) Resistance to spilling from the hand, and (5) low temperature stability.
Moreover, the viscosity of each liquid skin cleaning composition was measured on the conditions of 25 degreeC with the B-type viscosity meter (made by Tokyo Keiki Co., Ltd.) (30 rpm, 60 seconds later).

<(1) Amount of foam, (2) No slickness at the time of rinsing (speed of rinsing), (3) Evaluation method of no slickness>
After both hands were wet with water, 0.5 g of each of the liquid skin cleansing compositions of Examples 1 to 10 and Comparative Examples 1 to 11 was taken and the hands were rubbed for 10 seconds. It was evaluated with.
Subsequently, foams and washings covering the fingers were rinsed with running water, and the non-slackness (rinsing speed) during rinsing was evaluated according to the following evaluation criteria. In addition, from the feel of the hand skin after towel drying, the absence of roughness was evaluated according to the following evaluation criteria.
In addition, as a result, the average value of the evaluation result of 10 panelists was shown in Tables 1-4.

-Evaluation criteria for amount of foam-
5 points: very large amount of foam 4 points: considerably large amount of foam 3 points: slightly large amount of foam 2 points: slightly small amount of foam 1 point: small amount of foam

-Evaluation criteria for non-slackness during rinsing (speed of rinsing)-
5 points: No sliminess at all 4 points: The slime disappears from the side of the rinse 3 points: The slime remains after the foam flows, but it disappears immediately 2 points: The slime remains after the foam flows , 1 point that takes time to rinse out: Even after rinsing, the luster will not disappear

-Evaluation criteria for lack of roughness-
5 points: Does not feel the skin roughness at all 4 points: Does not feel the skin roughness almost 3 points: Feels the skin slightly slightly 2 points: Feels the skin slightly slightly 1 point: Feels the skin roughness

<(4) Evaluation method of spill resistance from hands>
When 0.5 g of each of the liquid skin cleansing compositions of Examples 1 to 10 and Comparative Examples 1 to 11 is placed on the center of the palm and the palm is directed to the side, the time until the liquid spills from the edge of the hand Was measured, and the difficulty of spilling from the hands was evaluated according to the following evaluation criteria.
In addition, as a result, the average value of the evaluation result of 10 panelists was shown in Tables 1-4.

-Evaluation criteria for spill resistance from hands-
5 points: Very difficult to spill (more than 5 seconds until spilled)
4 points: hard to spill (more than 3 seconds and less than 5 seconds to spill)
3 points: Slightly difficult to spill (more than 2 seconds and less than 3 seconds until spilling)
2 points: Slightly spilled (1 second or more and less than 2 seconds until spilled)
1 point: Easy to spill (less than 1 second until spilled)

<(5) Evaluation method of low temperature stability>
Each liquid skin cleanser composition of Examples 1 to 10 and Comparative Examples 1 to 11 was filled in a vial made of hard glass and allowed to stand for 1 week under storage conditions at 0 ° C., and then there was no precipitation or crystal precipitation. Was visually observed and evaluated according to the following evaluation criteria. The results are shown in Tables 1-4.

-Evaluation criteria for low-temperature stability-
○: Good (no precipitation or precipitation)
Δ: Slightly poor (slight precipitation or precipitation is observed, but when the solution is returned to room temperature, it dissolves quickly and uniformly)
X: Defect (precipitation or precipitation is observed)

From the results of Tables 1 to 4, the liquid skin cleansing compositions of Examples 1 to 10 were not affected by the amount of foam, the lack of luster when rinsing (the speed of rinsing), the lack of roughness, and the difficulty of spilling from hands. And, it was found that the low temperature stability was superior to the liquid skin cleansing compositions of Comparative Examples 1-11.
Moreover, since the amount of foam was rich when the liquid skin cleaning composition of Examples 1-10 rubbed for 10 seconds, it turned out that it is a cleaning agent excellent also in the speed of foaming.

(Examples 11 to 12)
Moreover, according to the composition shown below, the liquid skin cleaning composition of Examples 11-12 was prepared according to the conventional method as a cleaning composition for fingers (medicinal hand soap), respectively. When these detergent compositions for fingers were evaluated in the same manner as in Examples 1 to 10, as in Examples 1 to 10, the speed of foaming, the amount of foam, and the lack of luster during rinsing (rinse Speed), no bulkiness, spillability from hands, and low temperature stability.

<Example 11: Medicinal hand soap (1)>
Potassium laurate 12
Potassium myristate 6
POE (11) stearyl ether * 1 2
Hydroxypropyl methylcellulose * 4 1.2
Isopropylmethylphenol 0.1
Triclosan 0.1
Lauryldimethylamine oxide 1
Propylene glycol 15
Sorbit 5
Edetate tetrasodium tetrahydrate 0.2
Hydroxyethane diphosphonic acid 0.1
Styrene polymer emulsion * 7 0.7
Rosemary extract * 8 0.1
Blue No.1 appropriate amount Yellow No.4 appropriate amount perfume 0.4
Potassium hydroxide adjusted to pH10, purified water remaining

(Total 100% by mass)

In addition, the composition ratio and viscosity in Example 11 are as follows. (A) is a fatty acid salt, (B) is a laurate in the fatty acid composition, (C) is a nonionic surfactant, and (D) is a water-soluble polymer. Here, the viscosity was measured in the same manner as in the above examples.
(A) 18% by mass
(B) / (A) 67 mass%
(C) / (A) (mass ratio) 1/9
(D) 1.2% by mass
Viscosity 7Pa · s

<Example 12: Medicinal hand soap (2)>
Potassium laurate 8
Potassium myristate 6
Potassium palmitate 2
POE (16) cetyl ether * 3 2
Hydroxypropyl methylcellulose * 4 1.0
Cationized cellulose * 9 0.2
Lauryldimethylaminoacetic acid betaine * 10 2
Dipotassium glycyrrhizinate 0.1
Propylene glycol 10
Dipropylene glycol 5
Glycerin 1
Edetic acid 0.1
Hydroxyethane diphosphonic acid 0.1
Chamomile extract * 11 0.1
Fragrance 0.2
Red No. 401 Appropriate amount of potassium hydroxide Adjusted amount to pH 10 Purified water remaining

(Total 100% by mass)

In addition, the composition ratio and viscosity in Example 12 are as follows. (A) is a fatty acid salt, (B) is a laurate in the fatty acid composition, (C) is a nonionic surfactant, and (D) is a water-soluble polymer. Here, the viscosity was measured in the same manner as in the above examples.
(A) 16% by mass
(B) / (A) 50% by mass
(C) / (A) (mass ratio) 1/8
(D) 1% by mass
Viscosity 4Pa · s

In addition, the following were used as various components (* 1- * 11) in Examples 1-12 and Comparative Examples 1-11.
* 1: EMALEX 611 (made by Nippon Emulsion)
* 2: EMALEX OD-5 (Nippon Emulsion)
* 3: EMALEX 116 (manufactured by Nippon Emulsion)
* 4: Metroles HPMC 60SH-10000 (manufactured by Shin-Etsu Chemical)
* 5: Metroles HPMC 60SH-4000 (manufactured by Shin-Etsu Chemical)
* 6: Leoir MS-200 (manufactured by Lion Chemical)
* 7: Cybinol PE-3 (manufactured by Seiden Chemical)
* 8: Rosemary water (Maruzen Pharmaceutical)
* 9: Leo Guard GP (manufactured by Lion Chemical)
* 10: Obazoline LB-SF (manufactured by Toho Chemical Industries)
* 11: Camellia Liquid (Ichimaru Falcos)

The liquid skin cleanser composition is useful for cleaning the skin in various situations, but has a refreshed feel when rinsed, less irritation to the skin and less bulkiness after use, and low temperature stability. Excellent, resistant to spilling from hands, quick foaming even with a small amount of use, and has a sufficient amount of foam, so it is especially useful for carrying around and washing fingers on the go .
More specifically, the liquid skin cleanser composition is less likely to spill from the hand when discharged from the container onto the hand, the foaming is fast even with a small amount of use, and there is a sufficient amount of foam. Very useful for small children washing hands on the go. In addition, the liquid skin cleanser composition is easy to foam, and can be washed quickly in a short time. For example, when a mother with a child wants to wash his hands on the go with the child. It is also very useful.

Claims (1)

(A) Fatty acid salt 10-30% by mass (however, in the composition of the fatty acid salt,
(B) the proportion of laurate is 50% by mass or more),
(C) A nonionic surfactant is contained in such an amount that the mass ratio with the fatty acid salt is nonionic surfactant / fatty acid salt = 1/20 to 1/5, and (D) Containing 0.5 to 2 mass% of water-soluble polymer,
And the liquid skin cleansing composition characterized by the viscosity in 25 degreeC being 1-10 Pa.s.