JPH11193228A - Skin and hair detergent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject detergent which shows excellent physical properties, e.g. spread on skin, viscosity and the like, along with the excellent detergency and is inexpensive and excellent in the preservative stability by including a gelatinized starch and a nonionic surfactant in a specific proportion. SOLUTION: The objective detergent is obtained by including (A) 0.1-10 wt.% of a gelatinized starch, (B) 0.5-50 wt.% of a nonionic surfactant and (C), when necessary, an aqueous viscosity-increasing agent, a moisturizer, a medicine, an antiseptic, a stabilizer to oxidation, a pearl agent, a washing base or a foaming agent. As the starch, tapioca starch or potato starch is preferably used. As the component B, e.g. an 8-20C monoglyceride (ethoxylate), an 8-20C higher fatty acid sugar ester or the like is preferably used. It is favorable that the component B is contained in an amount of 20 wt.% or more, preferably 30 wt.% or more or particularly 50 wt.% or more, based on the component A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a skin and hair cleansing agent containing gelatinized starch.

[0002]

2. Description of the Related Art In general, a skin cleansing agent and a hair cleansing agent have excellent cleaning performance, and have good spreadability on the skin, no lubricity during rinsing, ease of rinsing, or use in a container such as a tube. Physical properties such as ease of filling, lack of stringiness when discharged from the container, and storage stability are required.

[0003] In the case of a skin cleanser or a hair cleanser containing a nonionic surfactant as a cleansing component, polyacrylate derivatives such as carbopols (manufactured by BF Goodrich Co.), polyethylene glycol, etc. (Polymers such as polyoxyalkylenes such as Alcox (manufactured by Meisei Chemical Industry Co., Ltd.)), semi-synthetic polymer compounds such as cellulose derivatives such as HECs (manufactured by Daicel Industries, Ltd.), or naturally occurring polymers such as carrageenan and xanthan gum. Molecular compounds are generally used (Edited by Nagatomo, Applications and Markets of New Water-Soluble Polymers, p. 140, CMC Corporation (1988)).

[0004]

However, with these high molecular compounds, it is difficult to obtain a skin cleanser and a hair cleanser satisfying all the above physical properties, and they are expensive, have high storage stability, and have high biodegradability. There is a problem that the properties are not always good.

Accordingly, the present invention is excellent in cleaning performance, excellent in properties such as spread on the skin, slimyness in rinsing, rinsing properties, viscosity, stringiness, etc., and is inexpensive and excellent in storage stability. It is another object of the present invention to provide a skin and hair cleansing agent that is excellent in safety such as biodegradability.

[0006]

Means for Solving the Problems The inventors of the present invention have made intensive studies to achieve the above-mentioned object, and as a result, despite being very inexpensive to obtain, in the field of cosmetics and toiletries, conventionally, baby powder and face powder have been used. Base, cream-absorbing powder (Sakai, water-soluble polymer, p. 137, CMC Co., Ltd. (1992)), soap bulking agent, etc.
We focused on starch that simply used its bulk properties. And if such starch is used, it is excellent in cleaning performance, good spreadability on the skin, no slimy when rinsing, easy rinsing, or moderate viscosity, excellent physical properties such as lack of stringiness are obtained, In addition, they have found that a skin and hair cleansing agent which is inexpensive, has little change in viscosity due to temperature fluctuation, is stable even when stored for a long period of time, and has excellent biodegradability can be obtained, thereby completing the present invention.

[0007] That is, the present invention provides a gelatinized starch containing 0.1%
-10% by weight, and 0.5-5% of a nonionic surfactant.
The present invention provides a skin and hair cleansing agent containing 0% by weight.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Starches that can be used in the skin and hair cleansing agent of the present invention include, for example, corn starch, rice starch, wheat starch, potato starch, tapioca starch, sweet potato starch, and the like.
Kudzu starch and the like, and these can be used alone or in combination of two or more. Of these, tapioca starch and potato starch are particularly preferred because they can impart particularly excellent physical properties such as good spreadability on the skin. Further, starch derivatives such as phosphoric acid crosslinked starch and phosphate ester starch can also be used.

The effect of the present invention cannot be obtained when starch is raw, and it is necessary to include gelatinized starch. By containing the gelatinized starch, excellent physical properties such as good spreadability on the skin, cleaning performance, storage stability and the like can be imparted to the skin and hair cleansing agent. Here, gelatinization means that, by adding water to starch and heating, the starch granules absorb water and swell, and the bonding of the micelles in the micelles and between the micelles is reduced and the starch is dissolved in a paste form. . Conditions for gelatinizing starch vary depending on the type of starch, and depend on the water content, the presence or absence of stirring during heating, and the like. For example, corn starch is about 62-72.
C., about 58 ° C. for rice starch, about 52-62 ° C. for wheat starch, about 69-75 for potato starch.
° C, about 68-74 ° C for sweet potato starch, about 67 ° C for kudzu starch, about 59-70 for tapioca starch.
° C (Kato et al., New Agricultural Products Utilization, p.21, Asakura Shoten (1987)). The starch can be gelatinized by heating at such a temperature for, for example, 5 minutes or more, preferably 10 minutes or more. In addition, other components such as a nonionic surfactant and an aqueous thickener described below may be added to starch together with water, and heated to gelatinize.

It is also possible to use partially pregelatinized starch (eg, PCA manufactured by Asahi Kasei Kogyo Co., Ltd.) which has been pregelatinized partially. In this case, further heating and gelatinization are carried out depending on the viscosity of the target product. Preferably.

The content of the gelatinized starch must be 0.1 to 10% by weight, and preferably 0.5 to 5% by weight, based on the skin and hair cleansing agent.
If it is less than 0.1% by weight, there is no thickening effect and excellent physical properties such as good spreadability on the skin cannot be obtained. On the other hand, if the content is more than 10% by weight, the cleaning performance is reduced.

The nonionic surfactant used in the skin and hair cleansing agent of the present invention may be any one which is generally used in cosmetics. Specific examples include the following. (1) a polyoxyalkylene alkyl ether, a polyoxyalkylene alkenyl ether, or a polyoxyalkylene alkyl ether having a linear or branched alkyl or alkenyl group having an average of 10 to 24 carbon atoms and having ethylene oxide, propylene oxide or butylene oxide added thereto; Oxyalkylene alkyl esters and polyoxyalkylene alkenyl esters. (2) Monoglyceride having 8 to 20 carbon atoms or its ethoxylate. (3) Higher fatty acid sucrose esters having 8 to 20 carbon atoms. (4) Polyglycerol fatty acid esters having an acyl group having 8 to 20 carbon atoms. (5) C8-20 higher fatty acid mono- or diethanolamides or ethoxylates thereof. (6) Polyoxyethylene hydrogenated castor oil. (7) Polyoxyethylene sorbitan fatty acid ester having an acyl group having 8 to 20 carbon atoms. (8) Polyoxyethylene sorbite fatty acid ester having an acyl group having 8 to 20 carbon atoms. (9) An alkyl saccharide surfactant having a linear or branched alkyl group, alkenyl group or alkylphenyl group having 8 to 18 carbon atoms. (10) An alkylamine oxide or alkylamidoamine oxide having a linear or branched alkyl or alkenyl group having 8 to 20 carbon atoms. (11) Ether compounds or ester compounds of polyhydric alcohols having a linear or branched alkyl or alkenyl group having 8 to 20 carbon atoms.

The content of the nonionic surfactant in the skin and hair cleansing agent should be 0.5 to 50% by weight, preferably 1 to 25% by weight. 0.
If the amount is less than 5% by weight, the cleaning performance is inferior. If the amount is more than 50% by weight, physical properties such as good spreadability on the skin are impaired. 0.5
If the content is within 50% by weight, not only is the washing performance excellent, and the excellent physical properties of the gelatinized starch are not impaired, but also
The storage stability can be improved by preventing aging of the gelatinized starch.

The content of the nonionic surfactant is preferably more than 20% by weight of the gelatinized starch, more preferably 30% by weight or more, and particularly preferably 50% by weight or more. If it is more than 20% by weight, excellent cleaning performance can be obtained.

In the present invention, it is preferable to further contain an aqueous thickener for increasing the viscosity in an aqueous system, since the storage stability of the skin and hair cleansing agent is further improved. Examples of such aqueous thickeners include polyacrylates (carboxyvinyl polymers (Carbopol 934, 940, 9
41, 980, ETD2020, etc., manufactured by BF Goodrich Co., Ltd.), polyoxyalkylenes (polyethylene glycol (Alcox E-30, E-60, E-10)
0, R-45, etc., manufactured by Meisei Chemical Industry Co., Ltd.), and minerals (laponite (smectite XLS,
Natural polymers such as polysaccharides (carrageenan, xanthan gum, etc., manufactured by Dainippon Chemical Co., Ltd.), and chemically modified polysaccharides (hydroxyethyl cellulose (HEC Daicel SE900, manufactured by Daicel Corporation) ), Carboxymethylcellulose (Metrose, manufactured by Shin-Etsu Chemical Co., Ltd.) and the like.

The aqueous thickener can be contained in the skin and hair cleansing agent within a range that does not impair the physical properties of the skin and hair cleansing agent and can improve the storage stability.

In the present invention, in addition to the above essential components, if necessary, humectants, chemicals, preservatives, antioxidants, pearlescent agents, cleaning bases, cleaning aids, foam stabilizers, foaming agents, foaming agents Ingredients commonly used as cosmetic additives such as agents, pH adjusters, viscosity adjusters, solvents, dyes, pigments, UV absorbers, warming agents, cooling agents, scrubbing agents, powders, bulking agents, fragrances, etc. Can be contained in a range that does not impair the effects of the present invention.

The skin and hair cleansing agent of the present invention can be obtained by mixing gelatinized starch, a nonionic surfactant, an aqueous thickener, and other components, stirring, and uniformly dissolving. . Mixing of the gelatinized starch with other components may be performed in a heated state or a cooled state of the gelatinized starch, but is more preferably performed in a heated state because the starch can be easily and uniformly dissolved. In this case, it is preferable to cool after uniform dissolution. Raw starch, water, and all other components may be mixed and heated to gelatinize the raw starch to form the skin and hair cleansing agent of the present invention. The skin and hair cleansing agent of the present invention can be in a form filled in a tube, a bottle or the like according to the purpose of use.

The skin and hair cleansing agent of the present invention can be used as a shampoo, a body shampoo, a face wash, a shower gel, a massage agent and the like.

[0020]

EXAMPLES Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to the following examples.

Examples 1 and 2 and Comparative Examples 1 to 5 Skin and hair cleansing agents were produced with the respective formulations shown in Table 1.
That is, the components 1 to 7 are uniformly dispersed in purified water,
The mixture was heated and stirred at 0 ° C. for 20 minutes to form a gel. 8 ~
The 10 components were added with stirring to dissolve uniformly, and cooled to obtain a skin and hair cleanser.

[0022]

[Table 1]

Test Example 1 Each of the skin and hair cleansing agents obtained above was filled in a 30 ml tube, discharged, applied to the skin, etc., and evaluated for cleaning performance and physical properties according to the following evaluation criteria. . Table 2 shows the results. ◎ Evaluation criteria Thickening effect: Ease of filling into tube, ease of discharge,
And evaluation of viscosity as an index of ease of application to the skin, etc. ○: moderate viscosity △: slightly insufficient viscosity ×: insufficient viscosity, unsuitable for use Yes Stringiness: Evaluation of stringiness (easiness of cutting) when extruded from a tube ○: No stringing, good cutting △: Slight stringing, slightly cutting ×: Marked stringing, Very poor cutting Ease of spreading: Evaluation of ease of spreading when applied to skin ○: Easy to spread △: Slightly hard to spread ×: Hard to spread Slutty: Smoothness when applied to skin and massaged Evaluation ：: No sliminess △: Slightly slim ×: Slightly slick Cleaning performance: Evaluation of the ability to remove dirt on the skin when applied to the skin and rinsed ○: Fall off well △: Slightly hard to fall ×: Fall Difficult to rinse: easy on the skin Evaluation of ease of rinsing when clothed and rinsed with running water (tap water) ○: Easy to rinse △: Easy to rinse ×: Hard to rinse Storage stability: Filled in a 30 ml tube and stored at 40 ° C for 1 month ○: No change at all △: Slight separation observed ×: Separated and unsuitable for use

[0024]

[Table 2]

From Table 2, Examples 1 and 2 are Comparative Examples 1 to
5 was confirmed to be superior.

Formulation Example 1 A face wash was prepared according to the formulation shown in Table 3. That is, potato starch and smectite were uniformly dispersed in purified water, heated to 75 ° C. or higher and kept for 1 hour to gelatinize the potato starch and swell the smectite. Sorbitol and polyoxyethylene laurate were added thereto, and ethyl carbitol in which parabens were previously dissolved was added thereto, followed by stirring. After cooling, a fragrance was added to obtain a face wash. Such a face wash was excellent in physical properties such as cleaning performance and ease of application on the skin, and also excellent in storage stability.

[0027]

[Table 3]

Formulation Example 2 A body shampoo was manufactured according to the formulation shown in Table 4. That is, tapioca starch and polyoxyethylene were uniformly dispersed in purified water, heated to 70 ° C. or higher and maintained for 1 hour to gelatinize the tapioca starch. Stearyl alcohol, polyoxyethylene (20) sorbitan monostearate, sodium polyoxyethylene lauryl (3.3) ether sulfate and alkyl glucoside were added thereto and stirred to dissolve uniformly. After cooling, crystalline cellulose, ethanol and fragrance were added and stirred to obtain a body shampoo. Such a body shampoo was excellent in physical properties such as cleaning performance and ease of application on the skin, and also excellent in storage stability.

[0029]

[Table 4]

[0030] Massage agents were prepared according to the formulation shown in Table 5. That is, potato starch was uniformly dispersed in purified water, heated to 80 ° C. and stored for 30 minutes to gelatinize.
Polyoxyethylene (PEG 600), isoprene glycol, 1,3-butylene glycol, glycerin, and polyoxyethylene (12) laurate were sequentially added thereto, and the mixture was stirred and uniformly mixed. After cooling, crystalline cellulose (φ30μm), polyethylene beads (φ50μ
m), a fragrance was added and stirred to obtain a massage agent. Such a massage agent was excellent in physical properties such as cleaning performance, massage properties, ease of application on the skin, and also excellent in storage stability.

[0031]

[Table 5]

A shampoo was manufactured according to the formulation shown in Table 6.
That is, tapioca starch and xanthan gum were uniformly dispersed in purified water, heated to 80 ° C., and held for 1 hour to gelatinize. To this, sodium polyoxyethylene (3.3) lauryl ether sulfate, cocoylamide propyl betaine, parabens, lauric acid ethanolamide and glycerin were sequentially added and uniformly mixed. After cooling, a fragrance was added and stirred to obtain a shampoo. Such a shampoo was excellent in physical properties such as cleaning performance, massage properties, and ease of application on the skin, and also excellent in storage stability.

[0033]

[Table 6]

[0034]

EFFECTS OF THE INVENTION The skin and hair cleansing agent of the present invention has excellent washing performance, and also has spinnability, spread on skin, sliminess,
It is excellent in physical properties such as ease of rinsing and the like, and has little change in viscosity due to temperature fluctuation and excellent storage stability. Further, by containing the aqueous polymer thickener, the storage stability is further improved.

Claims (4)

[Claims] 1. A skin and hair cleansing composition containing 0.1 to 10% by weight of gelatinized starch and 0.5 to 50% by weight of a nonionic surfactant. 2. The skin and hair cleansing composition according to claim 1, wherein the content of the nonionic surfactant is more than 20% by weight of the content of the gelatinized starch. 3. The method according to claim 1, wherein the starch is potato starch and / or starch.
The skin and hair cleansing composition according to claim 1 or 2, which is tapioca starch. 4. The method according to claim 1, further comprising an aqueous thickener.
The skin and hair cleansing agent according to any one of claims 3 to 7.