WO2001078659A1 - Milky lotions, cosmetic preparations, skin cleansers and skin cleansing articles - Google Patents

Abstract

Milky lotions are prepared by adding a hydrophilic polymer, clay particles, an oil, glycerol and potassium hydroxide to water. Potassium hydroxide is added to cosmetic preparations such as makeup products, makeup cleansers, hair care products, antiperspirants, body deodorizers, compositions for protecting from external factors, perfume compositions, cleansers and bathing preparations or skin cleansing articles such as moist towels. Alternatively, skin cleansing articles are prepared by adding potassium hydroxide or sodium hydroxide to skin cleansers to adjust the pH value to 10 or above and then impregnating paper, non-woven fabric or fabric for wiping the skin with the skin cleansers thus obtained.

Description

 Mechanics Emulsions, cosmetic preparations, skin cleansing agents and skin cleansing products

 The present invention provides a milky lotion, a cosmetic preparation and a skin cleansing article that can soften the skin where cracks occur and become cracked and exert an antibacterial effect, and a preservation that may adversely affect the human body and skin. Cleanser that can be stored for a long period of time and cleans the skin without containing ingredients such as ingredients, antioxidants, synthetic surfactants, etc. About supplies. Background art

 For eczema, etc., where the skin becomes dry and cracks, glycerin potash solution (commonly called Belz water) from the Japanese Pharmacopoeia has been marketed as an emollient. This glycerin potash solution is a transparent aqueous solution containing glycerin and hydroxylated lime, and has an action of permeating the skin to soften rough skin.

 Cleaning products such as towels and wet tissues are used to remove dirt from the skin and to remove or remove various bacteria attached to the skin. Used by soaking. Some of these detergents contain long-term preservation and prevent the development of mold by incorporating preservatives and antioxidants. Some of them have a washing action by containing a surfactant.

In the above emollient, when the glycerin potash solution is applied to the cracked rough skin portion, the glycerin potash solution penetrates into the wound and removes the permeated portion. It has the disadvantage of causing pain when stimulated.

 In addition, for people who have problems with dry skin or cracked skin, various cosmetic preparations and towel cleaning products such as towels are used on a daily basis, and such skin cannot be cured at all. There is a problem. In addition, among the above detergents, parabens, which are commonly used as preservatives, have been found in the Ministry of Health and Welfare to be accumulated in the body and also contained in the blood. Potential effects have also been pointed out. As a surfactant contained for imparting a detergency, alkyl methyl benzalkonium chloride (also known as benzyldimethyltetradecylammonium chloride or benzalkonium chloride; hereinafter referred to as “benzalkonium chloride”) .) Are often used. This surfactant is a synthetic surfactant of cations, which has the function of cleaning dirt attached to the skin, the action of disinfecting and disinfecting various germs attached to the skin, and the action of the detergent itself. Has an antiseptic action. However, it has been pointed out that if the surfactant remains on the skin, it may kill resident bacteria that keep the skin healthy and cause skin damage while remaining. This resident bacterium has a function of preventing harmful bacteria attached to the skin from entering the body. Easy to breed. In particular, in recent years, many antimicrobial products containing such surfactants have eliminated the indigenous bacteria and are increasing the number of people with skin disorders.

 In addition, when using cleaning products impregnated with cleaning agents in places such as nursing care for the elderly, the above-mentioned problems are more important from the viewpoint of health maintenance.

The present invention has solved these problems, and provides a milky lotion, a cosmetic preparation, and a skin cleansing product that can exert a healing effect by softening the skin that has become cracked and cracked and exhibit an antibacterial effect. . In addition, the present invention enables long-term preservation and cleansing of the skin without containing components such as preservatives, antioxidants, and synthetic surfactants that may adversely affect the human body and skin. Provided is a skin cleansing agent capable of cleansing, and a skin cleansing article impregnated with the skin cleansing agent. Disclosure of the invention

 The invention of the emulsion according to claim 1 is characterized in that the hydrophilic polymer, the viscosity particles, the oil, the daricerin, and the hydroxylating sphere are contained in water.

 According to the present invention, since glycerin and a hydrating power are contained in an emulsion containing a hydrophilic polymer, clay particles, and oil in water, emulsion skin having an emollient action and a moisturizing action is provided. It can be a softening healing agent. Since the emulsion of the present invention has an appropriate surface tension unique to the emulsion, the surface can be covered without penetrating the cracked wound. As a result, there is no pain due to permeation into the skin, and the skin can be softened and exert a healing effect. Further, when the pH value of the emulsion is increased by the contained potassium hydroxide, the antibacterial effect is also exhibited, which is preferable.

 The invention according to claim 2 is the emulsion according to claim 1, wherein the content of glycerin is 1.0 to 50.0% by mass, and the content of potassium hydroxide is 0.01 to 1.0% by mass. It is characterized by the following.

According to the present invention, by setting the content of glycerin to 1.0 to 5.0% by mass and the content of potassium hydroxide to 0.01 to 1.0% by mass, the emollient and healing agent can be used. Emulsion which can exhibit the effect of (1). In addition, glycerin has a moisturizing effect, is well compatible with water and oil, and has an effect of promoting hydrophilicity and lipophilicity to stabilize emulsification. As a result, by adjusting the content within the above range, the long-term stability of the emulsion in a practical state can be further improved. The invention according to claim 3 is the emulsion according to claim 1 or claim 2, wherein the hydrophilic polymer is 0.01 to 20.0% by mass of alginate, and the clay particles is 0.01 to 2%. It is characterized in that the bentonite is 0.0% by mass and the oil is 0.1 to 30.0% by mass.

 ADVANTAGE OF THE INVENTION According to this invention, while being able to be set as the emulsion excellent in stability, it can give characteristics, such as softness and good elongation.

 The invention of a cosmetic preparation according to claim 4 is characterized in that the cosmetic preparation contains a hydroxylating lime.

 ADVANTAGE OF THE INVENTION According to this invention, it can be set as the cosmetic preparation containing the potassium hydroxide which exhibits an emollient effect. Therefore, for people with dry skin or cracked skin, the use of cosmetic preparations for their original purpose does not damage the dry skin or cracked skin due to the emollient effect. It is beneficial because it has a healing effect. Furthermore, it is preferable that the pH value of the emulsion is increased by the contained water-reducing hydration because the antibacterial effect is exhibited.

 The invention of claim 5 is characterized in that the cosmetic preparation of claim 4 contains a humectant.

 According to the present invention, a humectant such as glycerin, a high molecular polysaccharide, or alginic acid is contained, so that the obtained cosmetic preparation can be provided with a moisturizing property, and the emollient / healing effect can be further exhibited.

 According to the invention of claim 6, the cosmetic preparation of claim 4 or 5 is a cosmetic preparation, a makeup remover, a hair care preparation, an antiperspirant for deodorant body, a composition for protection from external factors, and a fragrance. It is characterized in that it is either a composition, a cleaning agent or a bath composition.

According to the present invention, the obtained cosmetic preparation is used as a make-up agent, a make-up remover, a hair care preparation, a sweat-suppressing body deodorant, Damage to dry or cracked skin when using cosmetic preparations for their intended purpose by using any of protective compositions, fragrance compositions, detergents or bath compositions Without this, it can exhibit an emollient effect and a moisturizing effect.

 The invention for a skin cleansing product according to claim 7 is characterized in that it contains potassium hydroxide.

 ADVANTAGE OF THE INVENTION According to this invention, it can be set as the skin-cleaning article containing the hydroxylation rim which exhibits an emollient effect. Therefore, for people with dry skin or cracked skin, the use of skin cleansing products for their intended purpose may damage the dry skin or cracked skin due to the emollient effect. It is beneficial because a healing effect is exhibited. In addition, when the pH value of the emulsion is increased by the contained hydroxide hydroxide, the antibacterial effect is also exhibited, which is preferable.

 The invention of claim 8 is characterized in that the skin cleansing article of claim 7 is towel.

 ADVANTAGE OF THE INVENTION According to this invention, an emollient effect can be exhibited without giving damage to rustling skin or cracked skin. In addition, it has an antibacterial effect and can be used without preservatives.

 The skin cleanser of the present invention according to any one of claims 9 to 10 is characterized in that the pH of the skin cleanser is adjusted to 10 or more by containing an alkaline solution, and further, the alkaline solution has a hydroxylic power or water. It is characterized in that it is an aqueous solution containing sodium oxide.

According to the present invention, the pH is adjusted to 10 or more by an alkali solution containing a hydroxylic or sodium hydroxide, and the skin cleansing agent itself or the skin cleansing agent is impregnated by the alkali action. To control the development and oxidation of mold, and to remove or eliminate various bacteria Can be. Therefore, it is not necessary to include a preservative such as paraben, an antioxidant, and a surfactant having a disinfecting and disinfecting action such as benzalkonium chloride. Therefore, the skin cleansing agent of the present invention does not contain the above-mentioned components that accumulate in the body or kill the resident bacteria of the skin, and therefore have no risk of adversely affecting the human body and skin.

 In Claims 11 to 12, the skin cleanser of the present invention contains a humectant, and the humectant is glycerin, and the content is 0.1 to 50.0% by mass. Preferably, there is.

 ADVANTAGE OF THE INVENTION According to this invention, the skin after using a skin cleanser can be moisturized, and the drying etc. of skin can be prevented. In particular, glycerin has a moisturizing effect and has hydrophilicity and lipophilicity, and thus has an excellent effect of cleaning dirt attached to the skin. Therefore, the skin cleanser containing glycerin can exert a preferable cleansing action even when it does not have a surfactant.

 In claim 13, the skin cleanser of the present invention may further contain urea. Urea-containing skin cleansers have the effect of removing dead skin cells.

 The skin cleansing article of the present invention according to claim 14 is characterized in that the above-described skin cleansing composition of the present invention is used by being impregnated into paper, nonwoven fabric or cloth for wiping the skin.

According to the present invention, since the above-mentioned skin cleansing agent is used in a paper, a non-woven fabric or a cloth for wiping the skin in advance or impregnated with each use, the skin cleansing product is subject to generation of mold and oxidation. Storage for a long time. The skin cleansing article of the present invention can be preferably used as a towel, a wet tissue, a nursing care article, etc., and contains a preservative, an antioxidant, a surfactant, etc. which may have a bad influence on the human body. Because there is no need to let There is no risk of harming the health of the user or the user. BEST MODE FOR CARRYING OUT THE INVENTION

 First, the emulsion will be described.

 The emulsion of the present invention is obtained by adding a hydrophilic polymer, clay particles, oil, glycerin, and hydroxylated rim to water to obtain an emulsion emollient / healing agent. The present invention provides a glycerin potash solution comprising glycerin and a hydroxylating lime which has been conventionally commercially available, which can be used in the form of an emulsion, and is used for eczema and the like in which the skin becomes dry and cracks. It has a softening and healing effect. In other words, by making glycerin potash solution, which is effective as an emollient healing agent, available in the form of an emulsion, the emulsion can cover the surface of the cracked wound without penetrating it. There is no pain due to the permeation of the component consisting of the power rim into the skin, and it can soften the skin and exert a healing effect.

 It is preferable to select and set the basic components constituting the emulsion and the content thereof in consideration of the stability of the emulsion. The emulsion with improved stability can further exert the effect as an emollient / healing agent provided by a component comprising glycerin and potassium hydroxide contained therein.

 The specific range of the basic emulsion component from which a stable emulsion can be obtained is as follows: 0.01 to 20.0% by mass of a hydrophilic polymer, and 0.01 to 20.0% by mass of clay particles. , 0.1 to 30.0% by mass of oil. Further, when focusing on long-term stability, smoothness and the like, preferred ranges are 0.1 to 5.0% by mass of a hydrophilic polymer, 0.5 to 5.0% by mass of clay particles, and 0.4. ~ 20.0% by weight of oil. By setting the content in such a range, a stable emulsion as a base can be obtained.

In the present invention, glycerin and water are added to the stable emulsion thus obtained. Adds an oxidizing rim to the emulsion to exert an emollient healing effect. The content of glycerin and potassium hydroxide is preferably in the range of glycerin: 1.0 to 5.0 mass%, and potassium hydroxide: 0.01 to 1.0 mass%. Neither glycerin nor potassium hydroxide is a component that inhibits the stability of the emulsion, so the content in the above range is set exclusively within the range capable of exhibiting the emollient healing effect and the moisturizing effect. When the content of potassium hydroxide is less than 0.01% by mass or more than 1.0% by mass, the effect as a sufficient emollient / healing agent may not be exhibited. When the content of glycerin is less than 1.0% by mass, the moisturizing effect of glycerin may not be exhibited. When the content of glycerin exceeds 50.0% by mass, the moisturizing effect may not be exhibited. No change is seen.

Furthermore, glycerin has good compatibility with water and oil and has the effect of promoting hydrophilicity and lipophilicity to stabilize emulsification.By adjusting the glycerin within the above range, long-term stability of the emulsion in a practical state can be achieved. Note _c can further improving the sum of the components proportions constituting the force emulsions of course, be no more than 1 0 0%.

 If the hydrophilic polymer is not contained, the emulsion cannot be made into an emulsion, and if the content exceeds 20.0% by mass, the viscosity of the emulsion may be too high to emulsify uniformly. If the clay particles are not contained, the emulsion is easily separated, and if the content exceeds 20.0% by mass, the viscosity of the emulsion may be too high to emulsify uniformly. If the oil is not contained, it cannot be made into an emulsion, and if the content exceeds 30.0% by mass, water and oil may be separated.

Hereinafter, each component constituting the emulsion of the present invention will be specifically described. Hydrophilic polymers include starch, hydroxyethyl cellulose, carboxymethyl cellulose, alginic acid, hyaluronic acid, Use ligglutamic acid, chitosan, lignin, polylysine, silk fiber mouth mouth, ligamentan, casein, cellulose glycolic acid, collagen, gelatin, and one or a combination of two or more of these metal salts and esters Can be. In addition, polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone, polyhydroxyethyl acrylate, polyvinyl methyl ether, polyacrylic acid, poly (isobutylene-monomalenic acid), poly (2-acrylamide 2- Methylpropane-sulfonic acid), poly (acryloxypropanesulfonic acid), polyvinylphosphonic acid, poly (methacryloyl mouth kisshethyl quaternized ammonium chloride, polyvinylpyridine, N-N-dimethyl-N- (3-acrylamide Pill) _ N- (carboxymethyl) ammonium, polyethylene glycol, polydioxolan, polyethyleneimine, poly (N-vinylacetamide) and their metal salts and esters. Combination Those that have been used can also be used.

 Among these, hydrophilic polymers having high hydrophilicity, such as alginates such as sodium alginate and polyacrylic acid-based water-absorbing polymers, are preferably used. In particular, sodium alginate derived from natural products is more preferably used in terms of safety and health and biodegradability after use. In addition, sodium alginate purified by treatment with a protease such as protease is particularly suitable for obtaining an emulsion having a good hue and being difficult to grow mold. Sodium alginate is a high-viscosity colloidal substance with strong hydrophilicity and dissolves well in water. Further, sodium alginate has a large emulsifying power to oil, and an emulsion containing sodium alginate as a component has properties such as smoothness and spreadability.

As the clay particles, inorganic compounds mainly composed of layered crystals belonging to the phyllosilicate are used, for example, smectite, vermiculite, my force, Chlorite, kaolinite, eightlosite, chrysotile, talc, etc. are used. Above all, smectite and balmite having an exchangeable cation and a water molecule layer between crystal layers are preferable, and in practical use, bentonite mainly composed of a montmorillonite belonging to smectite is preferable.

 Of these, bentonite containing 100 to 100 mg equivalent of cation exchangeable sodium ion in 100 g is preferably used in view of the stability of the obtained emulsion. Bentonite having a cation exchangeable sodium ion content outside the range of 50 to 100 mg / 100 g may reduce the stability of the obtained emulsion. It is more preferable to use bentonite that has passed the Japanese Pharmacopoeia standards.

 The particle size of the bentonite is preferably 2 m or less. Bentonite with a particle size of 2 m or less can be obtained by dispersing bentonite particles in water and then leaving it at 1 G for 24 hours or by centrifugation at about 100 G for 10 minutes. It can be obtained by collecting clay particles dispersed in the supernatant without precipitation. Bentonite with a particle size of 2 m or less can be used particularly favorably in terms of long-term stability of the emulsion, excellent hue, smoothness and softness. In some cases, this is somewhat inferior.

 These clay particles may be directly mixed and used as an emulsion, but once dispersed in water and freeze-dried, the resulting clay particles can further exhibit the effect of retaining oil. As a result, the emulsion using freeze-dried clay particles has excellent stability because water and oil are difficult to separate even after a long period of time.

Further, as the clay particles, the above-mentioned clay particles contain silica, calcium carbonate, quartz, feldspar, cristobalite, titanium oxide, zinc oxide, apatite, etc. in the range of 0.1 to 40% by mass. It may be mixed clay, It is appropriately selected and employed depending on the use mode of the obtained emulsion.

 As the oil, all oils such as fats and oils composed of glycerin esters of fatty acids, long-chain fatty acids, and hydrophobic hydrocarbons can be used. For example, any of synthetic oils, mineral oils, animal oils, and vegetable oils can be used. Camellia oil, olive oil, squalane oil, rapeseed oil, soybean oil, sesame oil, sunflower oil, corn, which are particularly harmless to human skin Natural oils such as oil, castor oil and safflower oil are preferably used. In addition, various types of oils that have been used frequently in recent years, such as jojoba oil, kukui nut oil, and rosehip oil, can be used without any problem.

 As the water, various waters such as natural water, distilled water and ion-exchanged water can be used, and there is no particular limitation.

 Since glycerin has a moisturizing effect, by containing it together with potassium hydroxide, it moisturizes the skin that becomes cracky and cracks like housewife eczema, etc., and further exerts an emollient effect be able to. In addition, glycerin acts as a stabilizer for emulsions, and can significantly improve the long-term stability of emulsions in practical use. Glycerin has the effect of being familiar with water and oil, promoting hydrophilicity and lipophilicity, and maintaining the stability of emulsification. Ethylene glycol, high molecular weight polysaccharides, alginic acid, etc., have a moisturizing effect similar to that of glycerin. Therefore, by containing these humectants instead of glycerin, the same moisturizing effect as glycerin can be exerted.

 Hydroxylated lime has the effect of softening the skin that becomes cracked and cracks like housewife eczema, etc., and can increase the pH value and transfer it to the lipophilic side. However, the obtained emulsion can exhibit an antibacterial effect.

The emulsion is prepared by mixing the above components in a container, mixing with a mixer, It can be easily emulsified by forced stirring at high speed by means such as stirring. Then, even if left as it is, a stable emulsion can be obtained without separation of water and oil. If a slight amount of a fragrance or the like is added to this emulsion, a cosmetic emulsion having an effect as an emollient / healing agent can be obtained.

 By adjusting the content ratio of bentonite to oil in the emulsion of the present invention in the range of 1: 1.5 to 1: 6.0, particularly excellent long-term stability can be achieved. Furthermore, by adjusting to this range, it is possible to obtain an emulsion that is excellent in usage such as smoothness and softness. When the content ratio of bentonite to oil is less than 1: 1.5 or more than 1: 6.0, sufficient long-term stability is achieved when left at high temperatures or when irradiated with ultraviolet rays for a long time. You may not be able to.

 The emulsion of the present invention has the following effects. (A) For the skin that becomes cracked and cracks such as housewives eczema, it does not cause pain due to permeation into the wound of the skin like conventional dalyserin solution, and the conventional glycerin potassium A healing effect equivalent to that of a liquid can be exerted. (Mouth) Emulsion is stable and emulsification is good. (C) Since the pH value is high, it has high preservability without using preservatives such as ethylparaben-butylparaben and also has an antibacterial effect. (2) The pH value is slightly lower than the pH value of the conventional glycerin potash solution of about 12.6 (this pH value differs depending on the content of the hydration power, but within the scope of the present invention) In each case, it is lower than the conventional glycerin potash solution.) (E) Unlike hand cream, it has less stickiness and can be used without discomfort even in summer. (F) The same effect as ointment for treating atopic dermatitis can be exerted. (G) There is no problem even if you put it on your face.

Among the above, those containing urea have been used for atopic dermatitis. These conventional types include old keratin on the skin It has the effect of dropping, but such an effect may irritate the skin to those whose skin is not strong. The emulsion of the present invention exerts an effect on atopic dermatitis by promoting the growth of new skin from the skin without removing old keratin.

Incidentally, the emulsions of the present invention, in addition to the above components, cosmetics, foods, other components that are commonly used in pharmaceuticals such as, for example, vitamin A, bi evening Mi emissions 8 _2, vitamin B _6, vitamin C, vitamin D, vitamin E, vitamin P, humectants such as glycerin, para-dimethyl § amino acid Amiru, 2-hydroxy-one 4-methoxy benzophenone one 5- sulfonic acid sodium UV absorbers, antioxidants such as parahydroxysol, preservatives such as ethylparaben and butylparaben, anti-inflammatory agents such as glycyrrhizic acid derivatives, salicylic acid derivatives, hinokitiols, allantoin, daryuthion, Whitening agents such as snowy evening extract, coloring materials such as titanium yellow, carsamine, safflower red, resin powders such as polyethylene and nylon, and fragrances are required. It can be appropriately blended according to the.

 Further, a creamy emollient / healing agent containing at least the basic components of the above-mentioned emulsion of the present invention can be obtained. In this case, the viscosity, the touch, and the like can be appropriately adjusted by the above-mentioned components and other components, and the composition can be used as a cream having emollient properties, such as a hand cream.

 Next, an emollient cosmetic preparation will be described.

The emollient cosmetic preparation of the present invention contains a hydroxylating lime. The preferred range of the content of potassium hydroxide is the same as that contained in the above-mentioned emulsion, that is, the range of 0.01 to 1.0% by mass, which is exerted by containing potassium hydroxide. The same is true for the effect, that is, the emollient effect and the antibacterial effect. It is preferable to further include a humectant in the cosmetic preparation containing the hydroxylating lime. Examples of the humectant include glycerin, ethylene glycol, polymer polysaccharides, and alginic acid. Since the cosmetic preparation containing a humectant has a moisturizing action, the emollient healing effect based on potassium hydroxide can be further exhibited.

 When glycerin is used as a humectant, glycerin is well compatible with water and oil and has the effect of promoting hydrophilicity and lipophilicity to stabilize emulsification. Particularly preferred, it can further improve the long-term stability of the emulsion in a practical state. If a cosmetic preparation already contains a humectant, it is not necessary to include such a humectant.

As cosmetic preparations, all types of cosmetic preparations that adhere directly to the skin as a result of use or on use, irrespective of type, liquid, or paste, are covered. Specifically, any of a makeup agent, a makeup remover, a preparation for hair, a deodorant for perspiration-suppressing body, a composition for protecting against external factors, a fragrance composition, a cleaning agent, a bath composition, or the like is used. be able to. Of these, preparations for hair care include hair styling agents such as lotions, shampoos, rinses, and hair tonics, hair growth agents, depilatory agents, shaving agents, and the like. Compositions that protect against external factors include cosmetic preparations that protect the skin from external factors such as sunlight, X-rays and other actinic radiation, ultraviolet rays, corrosives, bacteria, insects, etc., such as sunscreens and radiation shielding agents. It is. The fragrance composition is a so-called perfume. Detergents include hand detergents, dishwashing detergents, laundry detergents, other detergents and stoneware. Bath compositions are so-called bath agents. The cosmetic preparation of the present invention is capable of exerting an emollient effect without giving damage to dry skin or cracked skin when these various cosmetic preparations are used for their original purpose. Is characterized by is there. For those who have had a problem with dry skin or cracked skin, they have been using various cosmetic preparations as described above on a daily basis. The present invention is extremely beneficial because it imparts an emollient effect to such cosmetic preparations, so that a healing effect can be exerted without damaging the skin. Further, when the pH value of the emulsion is increased by the contained potassium hydroxide, the antibacterial effect is exhibited, which is preferable. Furthermore, in addition to the cosmetic preparations mentioned above, if you impregnate the hydration-powered rim with something that may come into contact with your hands or skin in daily life, such as skin cleaning products such as towels, wet tissues, and backwash napkins, The softening / healing effect can be exerted without damaging the skin or the cracked hand skin. Further, when a humectant such as glycerin is contained, the emollient healing effect can be further improved by the moisturizing effect. The preferred contents of potassium hydroxide and glycerin are in the same range as described above, that is, potassium hydroxide is 0.01 to 1.0% by mass, and glycerin is 1.0 to 50.0% by mass.

 In particular, when the pH value is increased (to shift to the alkaline side) by adding a hydroxylating power to the towel, it is possible to exert the effect of eliminating the need to use a preservative in the towel, It can also exhibit antibacterial effects. As the towel, any of a cloth, a nonwoven fabric, a paper, a synthetic paper and the like can be used. By impregnating the towel with a solution containing 0.01 to 1.0% by weight of potassium hydroxide and having a pH value of about 8.5 to 11, for example, an aqueous solution of benzalkonium chloride, a conventional method is used. Preservatives are not required, and antibacterial effects can be exerted.

 The present invention will be described more specifically with reference to Examples 1 to 3.

 (Example 1)

An emulsion was made to evaluate the present invention. The constituents of the emulsion are hydrophilic poly Sodium alginate (display viscosity: 500 to 600 cps) as a mercury, bentonite containing 50 to 10 Omg equivalent of cation exchangeable sodium ion in 100 g as clay particles (trade name: Wenger FW, display viscosity: about 2500 cps) And squalane oil, glycerin, and potassium hydroxide as oils. The emulsion was mixed with 100 ml of water so that the content of each component was as shown in Table 1.After stirring for 3 minutes with a mixer and stirring for 5 minutes with a polytron, water and oil were not separated. An emulsion emulsified completely until a state was reached was used.

The stability of the emulsion was evaluated as follows: (1) left at 40 ° C for 2 months, (2) left for more than half a year in the presence of ultraviolet rays, and no separation of water and oil was observed The condition was evaluated as ◎ or 応 じ depending on the degree, and the condition where slight separation was observed was evaluated as △. With regard to the emollient healing effect, patients with housewife eczema should use the affected area appropriately (approximately 6 times a day) after using water such as hand washing and water work. It was used twice on the affected area, and each use was continued for 2 months. Evaluation was made based on the healing effect and pain. A favorable case was rated as ◎ or 応 じ according to the degree, and a slightly irritating one was rated as △. Table 1 shows the results.

table 1

得られた乳液は、何れも安定性に優れ、ベ夕ツキ感がなく、延びがよく、 滑らかで、 臭いもなく、 保湿性があった。 また、 若干ひりひりものもあつ たが、 従来のグリセリンカリ液に比べるとその差は顕著であり、 さらに、 従来タイプのダリセリンカリ液と同程度の治癒効果を有していた。 これら の乳液は、 界面活性剤や防腐剤を含まず、 全構成成分が主に天然物で構成 されているので、 主婦性湿疹等に用いる乳液に極めて適している。 また、 紫外線吸収効果もあり極めて有益である。

Each of the obtained emulsions was excellent in stability, had no sticky feeling, spread well, was smooth, had no odor, and had moisturizing properties. In addition, although there was a slight tingling, the difference was remarkable as compared with the conventional glycerin potash solution, and further, it had the same healing effect as the conventional type dariserin potash solution. Since these emulsions do not contain surfactants or preservatives and all components are mainly composed of natural products, they are extremely suitable for emulsions used for housewife eczema and the like. It also has an ultraviolet absorption effect, which is extremely useful.

 (Example 2)

 Cosmetic preparations containing dalyserin and a hydration hydration preparation were prepared. As cosmetic preparations, lotions, serums, emulsions, liquid foundations, packs, night creams and ointments were used. For serums, emulsions, packs, night creams and ointments, adjust the amount of potassium hydroxide to 0.1% by mass. For lotions, 0.1% by mass of potassium hydroxide and 2.0% of glycerin. %, And the liquid foundation was adjusted to be 0.1% by mass of potassium hydroxide and 0% by mass of glycerin, to thereby prepare cosmetic preparations of the present invention.

The evaluation of the obtained cosmetic preparation was as follows: The person with the rash was used as the monitor and evaluated based on the results of using each cosmetic preparation as daily life. The results of the monitor showed that there was no damage such as exacerbation of housewives' eczema, that there was a feeling of moisturizing, and that the moistened portion was softened.

 (Example 3)

 About 2 g of a nonwoven cloth was soaked with 10 ml of an aqueous benzalkonium chloride solution adjusted to contain 0.2% by mass of potassium hydroxide and 5.0% by mass of glycerin. No preservatives were included in normal towels.

 This towel was free of mold and fungi even after 90 days at room temperature. Furthermore, as a result of using it by people with housewife eczema, there was no damage such as exacerbation of housewife eczema.

 Hereinafter, the skin cleansing agent and the skin cleansing article of the present invention will be described.

 The skin cleanser of the present invention is an aqueous solution containing an alkaline solution containing a hydroxide or sodium hydroxide to adjust the pH to 10 or more, and if necessary, a humectant, urea, or the like. Is contained. The skin cleansing article of the present invention uses such a skin cleanser soaked in paper, nonwoven fabric or cloth for wiping the skin.

The alkaline solution is an aqueous solution exhibiting alkalinity, and is used to adjust the pH of the skin cleanser to 10 or more by being contained in the skin cleanser. The alkaline solution can be prepared using potassium hydroxide, sodium hydroxide, or other salts, but it is preferable to use a hydroxide or sodium hydroxide. The pH of the skin cleanser is adjusted to a predetermined value of pH 10 or more by blending an alkaline solution. Therefore, the blending amount of the alkaline solution is arbitrarily set depending on the content of potassium hydroxide or sodium hydroxide (hereinafter, these are referred to as “potassium hydroxide or the like”) contained in the alkaline solution. Through Usually, a skin cleanser having a pH of 10 or more can be obtained by including about 0.01 to 10.0 mass% of potassium hydroxide or the like in the obtained skin cleanser. The content of the hydroxide solution and the like in the solution and the blending amount of the alkaline solution are arbitrarily selected and adjusted. The thus-prepared skin cleanser having a pH of 10 or more can prevent the generation of mold on the skin cleanser itself or the skin cleanser impregnated with the skin cleanser, and also oxidize due to its alkali action. Can be suppressed. Furthermore, it has a favorable effect of sterilizing various bacteria by its alkali action. In addition, a skin cleanser that exhibits an alkaline property also has the effect of softening and healing the skin that becomes cracked and cracks like housewife eczema, etc., so it is also preferably used by users with such symptoms. can do.

 If the pH of the skin cleanser is less than 10, the effect of disinfecting various bacteria such as general bacteria is weakened, and mold may be generated on the skin cleanser itself or on a skin cleanser impregnated with the skin cleanser. On the other hand, the pH of the skin cleansing agent is usually adjusted to 13.5 as an upper limit, mainly in consideration of the effect on the skin. At this time, even if an alkaline skin cleanser adheres to the skin, the skin is weakly acidic and the skin has the function of neutralizing by releasing acid. Can be immediately neutralized.

 Since the skin cleansing agent is an aqueous solution containing potassium hydroxide or the like, water is indispensable, and various types of water such as natural water, distilled water, and ion-exchanged water can be used. Further, an alcohol component such as ethanol and other components blended in a conventional skin cleanser may be contained as necessary within a range not to impair the object of the present invention.

Examples of the humectant include glycerin, ethylene glycol, high molecular weight polysaccharides, and alginic acid. The humectant can be selected and combined with the skin cleanser of the present invention as needed. A skin cleanser containing a moisturizer is used to It can moisturize the skin after removing skin stains and various germs, keeping the skin moist and suppressing drying and itching. It is particularly effective when used in skin cleansing products for elderly care, and can moisturize and moisturize the skin of elderly people. Further, the moisturizing agent can further improve the healing action of housewife eczema and the like by the above-mentioned skin cleansing agent by the moisturizing effect.

 It is preferable to use glycerin as a humectant. Since glycerin has hydrophilicity and lipophilicity, it also has an action of removing stains by a surfactant contained in a conventional type of skin cleanser. The content of glycerin in the skin cleansing agent is 0.0 :! to 50.0% by mass, preferably 1.0 to 50.0% by mass. This range is set to a range where the moisturizing effect and the cleaning effect for removing dirt can be exhibited.

 In the present invention, the adjustment of the content of the humectant such as pH and glycerin is performed in consideration of a person to be used.For example, when the elderly are targeted, the amount of the humectant is increased and If the effect is to be enhanced or if the target is for infants, it is preferable to adjust the pH to be lower so that the alkalinity is weakened. The absolute amount of potassium hydroxide or the like is preferably set to 0.5% by mass or less so as not to irritate the skin.

Urea can be included in the skin cleanser. Urea has the effect of removing old keratin on the skin to be wiped with a skin cleanser. Therefore, when a metabolically active person uses a skin cleanser containing urea or a skin cleanser impregnated with it, the skin becomes slippery. Furthermore, when a moisturizing agent such as glycerin is contained, moist skin can be obtained by an emollient effect based on potassium hydroxide and a moisturizing effect based on the moisturizing agent. The skin cleanser of the present invention can also contain a fragrance such as an essential oil. Wash the skin with a fragrance-containing skin cleanser, Wipe the skin with a skin-cleaning product impregnated with a cleansing agent, which gives a comfortable feeling to the user and the like at the time of use and after use, and is therefore also preferable from a psychological point of view.

 These skin cleansing agents are usually used by impregnating into skin cleaning products such as towels, wet tissues, buttocks and napkins, and skin cleaning products such as cleaning cloths for elderly care and infants. Paper, nonwoven fabric, cloth or the like is generally used as a material that impregnates the skin cleansing agent, but is not particularly limited as long as it has a similar effect. When using acidic paper, the pH may decrease gradually after impregnation, so use a pre-treated acid paper beforehand and soak the skin cleanser. Preferably, such skin cleansing articles are placed in a plastic container—a refill bag.

 Skin cleansing products are individually wrapped in a plastic film, etc., or put in a container in a certain quantity so that the skin cleanser impregnated in paper, nonwoven fabric or cloth will not evaporate and dry. In addition, the skin cleanser contained in the bottle can be used after being soaked in paper or the like each time it is used. It can also be stored as a concentrated solution, diluted for use and soaked in paper or the like before use. Therefore, the pH, the content of potassium hydroxide and the like, the content of glycerin and the like of the above-mentioned skin cleanser are set in consideration of the mode of use as the skin cleanser.

 As described above, the skin cleanser of the present invention and the skin cleanser impregnated with the skin cleanser have the following effects. (Ii) It can be stored for a long time without containing a preservative or an antioxidant, and can prevent oxidation.

(Mouth) An antibacterial effect and a cleaning effect can be exerted even without adding a surfactant. (8) It can exert a healing effect on skin that becomes cracked and cracks, such as housewives eczema. (2) Recent stories If the subject's skin mites (Dermodex Pholicurom) or pimples (Dermodex Brevis) appear on the skin, their algal solution can kill them. .

Incidentally, the skin cleansing agent of the present invention, in addition to the above components, cosmetics, food, other ingredients which are commonly used in the pharmaceutical or the like, for example, vitamin A, vitamin B _2, vitamin B UV absorption of _6, Class C, Vitamin C, Vitamin D, Vitamin E, Vitamin P, Amyl paradimethylaminobenzoate, 2-Hydroxy-14-methoxybenzophenone-5-Sulfonate Inflammatory agents such as glycyrrhizic acid derivatives, salicylic acid derivatives, hinokitiol, allantoin, whitening agents such as daryu thione and yukinoshiu extract, coloring materials such as titanium yellow, carsamin, safflower red, polyethylene, and niacin Resin powder, fragrance and the like can be appropriately compounded as needed as long as the object of the present invention is not impaired.

 The present invention will be described more specifically with reference to examples and comparative examples.

An aqueous solution containing potassium hydroxide and glycerin at the concentrations shown in Table 2 was prepared as a skin cleanser, and the pH of the obtained skin cleanser was measured. 5 ml of this skin cleanser was soaked into a nonwoven fabric (about 2 g in weight) and squeezed. After that, leave for 90 days in each environment of high temperature environment (45 ° C), body temperature environment (37 ° C), and room temperature (about 20 ° C ± 10 ° C). And the occurrence of mold was observed. The non-woven fabric impregnated with the cleaning solution was placed in a plastic bag with a zipper, and the occurrence of mold was observed while preventing drying. Table 2

なお、 表中の各実施例に適用した皮膚洗浄剤について、 寒天培養法によ つて一般細菌 （生菌数） を検査した結果、 全て陰性であった。

The skin cleanser applied to each example in the table was tested for general bacteria (viable count) by the agar culture method and found to be all negative.

Towels impregnated with a skin cleanser having a pH of 10 or more did not generate mold, whereas towels impregnated with a skin cleanser having a pH of less than 10 produced mold. Industrial applicability

 As described above, according to the emulsion of the present invention, since glycerin and potassium hydroxide are contained, the emulsion has a softening effect, a moisturizing effect, and an antibacterial effect in the emulsion. It can be a softening healing agent. Such an emulsion has a moderate surface tension characteristic of an emulsion, and can cover the surface of a cracked wound without penetrating it. As a result, there is no pain due to permeation into the skin, and the skin can be softened and exert a healing effect.

 According to the cosmetic preparation of the present invention, the cosmetic preparation exhibits an emollient effect and also an antibacterial effect, and therefore, the cosmetic preparation is used for its intended purpose for persons having dry skin or cracked skin. In this case, it is beneficial because the emollient has a healing effect without damaging the dry skin or the cracked skin. Furthermore, it is more effective to include a humectant.

According to the skin cleansing article of the present invention, even if a person having dry skin or cracked skin is used for its intended purpose, the healing effect is exhibited without damaging such skin. It is informative. In addition, when the pH of the emulsion is increased by the contained water-soluble hydration agent, the emulsion has an antibacterial effect, and when it is wet, a preservative is not required. ADVANTAGE OF THE INVENTION According to the skin cleansing agent of this invention, generation | occurrence | production of the viscous force and oxidation of the skin cleansing agent itself or the skin cleansing agent impregnated can be suppressed by the alkali action, and it can also sterilize various bacteria. . Therefore, it is not necessary to include a preservative such as paraben, an antioxidant, and a surfactant having a disinfecting and disinfecting action such as benzalkonium chloride. Therefore, the skin cleansing agent of the present invention does not contain the above-mentioned components that accumulate in the body or kill the indigenous bacteria on the skin, which may adversely affect the human body and skin. There is no. In addition, by containing a moisturizer, the skin after using the skin cleanser can be moisturized, and the skin can be prevented from drying out. In particular, when glycerin is used, a preferable cleaning action can be exerted even when no surfactant is used.

 ADVANTAGE OF THE INVENTION According to the skin cleansing article of this invention, generation | occurence | production of mold and oxidation do not occur, it can be preserve | saved for a long term, and can be preferably used as a towel, a wet tissue, a nursing care article, etc. There is no need to include preservatives, antioxidants, surfactants, etc., which may cause harm to the health of users and users.

Claims

The scope of the claims 1. Emulsion characterized by containing hydrophilic polymer, viscosity particles, oil, glycerin and potassium hydroxide in water. 2. The claim 1 wherein the content of glycerin is 1.0 to 50.0% by mass, and the content of potassium hydroxide is 0.01 to 1.0% by mass. The emulsion according to the above. 3. The hydrophilic polymer is 0.01 to 20.0% by mass of alginate, the clay particles are 0.01 to 20.0% by mass of bentonite, and the oil is 0. 3. The emulsion according to claim 1 or claim 2, wherein the amount is 1 to 30.0% by mass. 4. A cosmetic preparation characterized by containing potassium hydroxide. 5. The cosmetic preparation according to claim 4, comprising a humectant. 6. Makeup agent, makeup remover, hair care preparation, antiperspirant, body deodorant, protection composition from external factors, fragrance composition, detergent or bath composition The cosmetic preparation according to claim 4 or 5, characterized in that: 7. A skin cleansing article characterized by containing a hydration-powered rim. 8. The skin cleansing article according to claim 7, which is a towel. 9. A skin cleanser characterized by containing an alkaline solution to have a pH of 10 or more. 10. The skin cleanser according to claim 9, wherein the alkaline solution is an aqueous solution containing potassium hydroxide or sodium hydroxide. 1 1. The skin cleanser according to claim 9 or claim 10, comprising a moisturizer. 12. The skin cleanser according to claim 11, wherein the humectant is glycerin, and the content thereof is 0.1 to 50.0% by mass. 13. The skin cleanser according to any one of claims 9 to 12, comprising urea. 14. A skin cleansing product characterized by using the skin cleanser according to any one of claims 9 to 13 soaked in paper, nonwoven fabric or cloth for wiping the skin.