KR830000463B1 - Stick type cosmetic composition - Google Patents

Abstract

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Description

Stick type cosmetic composition

The present invention relates to a stick-type cosmetic composition. More specifically, the present invention relates to low-cost stick-type cosmetic compositions.

The use of stick cosmetic preparations is well known. These formulations range from stick-type deodorants and antiperspirants to lipsticks, squeezed cosmetic powder sticks. Depending on the particular application, there are very differences in the vehicles used in stick-type cosmetics. For example, stick-type deodorant compositions typically have bacteriostatic agents or other biologically active compounds dispersed in alcohol-based gel containing vehicles containing glycols such as ethanol or propylene glycol as the vehicle base. In either case, gelation occurs by using a soap such as sodium stearate as the gelling agent. This stick-type deodorant also contains small amounts of additives such as incense burners, wetting agents, various surfactants, dyes and other colorants, water and the like. Both compositions are regrettable. For example, ethanol in ethane-based products is relatively volatile and evaporates during storage, especially at elevated temperatures. As a result, the sticks shrink and become unsightly and usually useless. Glycol-based deodorant sticks do not have this drawback; However, glycols make the product hard and beeswax, which results in poor sensation and / or little coverage.

In contrast, lipsticks and other cosmetics typically use fats and / or waxes such as castor oil, carnauba wax, candelice wax beeswax and the like. This type of vehicle is relatively expensive and in most cases cannot be used in the manufacture of other cosmetics.

Powder sticks were prepared by pressing powder. However, this product is generally so solid that it is difficult to deposit a sufficient amount of powder when applying this compacted powder to the user's skin. Therefore, various solutions have been proposed, such as supplying the composition together with a separate cover or dry film in order to reduce the degree of compaction and to prevent "diffusion" of loosely packed powder. See US Patent Application No. 3,471,611. As another method, the use of materials such as rubber or adhesive binders is described in US Pat. No. 3,800,034. These efforts weren't particularly successful, and the increased manufacturing steps inevitably increased the cost of product manufacture.

It is an object of the present invention to provide an improved cosmetic stick composition.

It is a detailed object of the present invention to supply new and inexpensive vehicle bases for cosmetic stick compositions.

A more detailed object of the present invention is to provide a new vehicle for use in a versatile cosmetic stick composition.

It is therefore an object of the present invention to provide a vehicle suitable for use in deodorant sticks, lipsticks, talc sticks and other cosmetic sticks.

The object of the present invention, which will be apparent in the following specification and claims, relates to a solid composition consisting of water, sodium stearate and active ingredients which can be deposited on one or more human skin.

The basic vehicle in the composition of the present invention is a mixture of sodium and stearate in an amount sufficient to produce a self-supporting solid composition that is not easily deformed, such as beeswax and is so hard that the composition is hard and does not deposit active ingredients upon application to the skin, such as beeswax. to be. In general, suitable products are obtained when sodium stearate is used in an amount ranging from about 1 to 30 parts (weight) with respect to 100 parts of water. A preferred composition is usually obtained when the amount of sodium stearate is about 2 to 20 parts with respect to 100 parts of water. Of course, in special cases the optimum ratio of sodium stearate to water depends on the nature of the other components of the cosmetic stick composition. Nevertheless, most useful compositions have a ratio of sodium stearate to water within this range.

The third basic ingredient in the cosmetic stick composition of the present invention becomes an "active ingredient" which means an ingredient for depositing on the skin of a human body. This active ingredient contains biologically active substances such as bacteriostatic and antifungal agents, pigments and dyes or other colorants, perfumes, emollients, ultraviolet absorbers or "sunscreens" and talc. Of course, any active ingredient must be stable in the liquid alkaline state by the sodium stearate-water vehicle. Thus, antiperspirants such as ammonium chlorohydrate and related substances are not applicable in the present invention. Depending on the end use of the cosmetic stick composition, the amount of "active ingredient" varies from 0.05% by weight or less to 50% by weight of the total weight of the composition.

The composition of the present invention can be used to prepare a deodorizing stick composition in which the active ingredient is bacteriostatic. Suitable bactericides include 2,2'-methylene-bis (3,4,6-trichlorophenol), 2,4,4'trichloro-2'-hydroxy (diphenylether), zinc phenolsulfonic acid, 2, 2'-thiobis (4,6) dichlorophenol, p-chloro-m-xylenol, dichloro-m-xylenol and the like. The proportion of sodium stearate in this deodorant stick composition is about 2 to 15 parts, preferably about 9 to 12 parts, per 100 parts of water. The proportion of bacteriostatic agent is an amount that can function sufficiently as a deodorant, that is, an amount effective to inhibit the growth of bacteria by being deposited when the composition is applied to the skin. Usually this amount is in the range of about 0.05 to 0.5% by weight, preferably about 0.075 to 0.2% by weight of the total composition.

Perfume-based perfume sticks can be prepared by including one or more aromatics in the composition. These aromatics include synthetic aromatics as well as natural products such as essential oils, flower oils, resins, gums, balsams, soybeans, moss and other extracts from plants and animal products such as fennel and musk. These materials are so diverse that they are difficult to describe. In general, it is sufficient to divide the back light into several known categories such as flowers, spicy, wood, moss, oriental, vegetation, ladder-tobacco and aldehyde groups. Male fragrances can be divided into citrus, spice, leather, lavender, fougere and nut group. Typically the perfume is supplied in a concentrate containing about 0.5 to 20%, often about 3 to 12% of one or more perfume compounds in a solvent such as water or alcohol. In preparing the perfume stick compositions from these concentrates, sodium stearate is about 5-15 parts per 100 parts water, preferably 10-12 parts, and the amount of concentrated perfume is about 2-8, preferably 3-5% by weight of the total composition. .

Many perfume essential oils cannot be used with liquid systems, especially when the product is used in large amounts as a deodorant colon. Attempts to use these essential oils in the stick-type compositions of the present invention resulted in a soft and flexible composition. In the past, this contraindication problem has been overcome by using surfactants to suspend perfume essential oils in liquid solvents. This solution has been satisfactory when the cosmetic is a liquid product, but it has been found to be of no use in preparing a stick-type product such as a stick-type deodorant colon according to the invention. The essential oil emulsions for fragrances interfere with the condensation of the sodium stearate-water vehicle to produce a soft, creamy composition rather than to produce a solid stick. This problem could be partially solved by increasing the amount of sodium stearate, but a hard, beeswax-like product was produced that did not feel well. However, if the essential oil is dissolved into glycol or diglycol without the amount of essential oil exceeding 50% by weight of the concentrate concentrate to produce the concentrate as a flavor concentrate, a stick-type product of good solid like stick colon deodorant will be obtained. It turns out that you can. Suitable glycols are those containing about 2 to 6 carbons such as ethylene glycol, propylene glycol, butylene glycol and hexylene glycol. Diglycols that may be used include, for example, diglycols of glycols containing about 2 to 6 carbons, such as diethylene glycol and dipropylene glycol. Perfume concentrates may then be mixed with the remaining ingredients of the stick-type composition.

Another type of stick-type cosmetic product that can be prepared according to the invention is that the active ingredient is p- (dimethylamino) benzoic acid, anthranilate, salicylate, cinnamic acid, dihydroxy cinnamic acid or trihydroxynamic acid. Esters, diphenyl-butadiene, stilbenes, naphthol sulfonates, coumarin derivatives, N-substituted derivatives such as quinone, tannic acid, zinc oxide, dioxybenzone and oxybenzone, as well as p-amino benzoic acid, salts thereof or Sun sticks, which are ultraviolet absorbers such as esters. Sodium stearate in this composition contains from about 5 to 15 parts, preferably from about 10 to 12 parts (weight) per 100 parts of water and the ultraviolet absorber or screen contains from about 0.5 to 5%, preferably from about 1 to 4% of the total weight of the composition. do.

Another cosmetic stick composition within the scope of the present invention is a wetting or emollient composition in which the "active substance" can be combined with water as an emollient and suspending composition. The composition is composed of ethoxylated and propoxylated sugars such as ethoxylated methyl glucose sesquistearate and propoxylated glucose, as well as stearin such as sucrose monostearate and or sucrose distearate. Sugar derivatives such as sucrose esterified with the same long-chain fatty acid and glucose derivatives such as glucose and mityl glucoside sesquistearate. In this composition sodium stearate is used from about 5 to 15 parts, preferably 10 to 12 parts per 100 parts of water and the wetting agent and / or emollient is used from about 2 to 10%, preferably from about 4 to 8% of the total weight of the composition.

The composition of the present invention also contains a dressing stick in which solid pigments used in rouge, lipstick, eye shadow, ari liner and the like are blended into the composition as an active ingredient. Dyestuffs include titanium dioxide, zinc oxide, iron oxides, aluminum lac, barium lac, calcium lac, strontium tech, tetrabromofluoroessen, tetrabromotetrachlorofluoroesene, dibromofluoroessen and the like. . The amount of sodium stearate in this composition is about 5-15 parts, preferably about 9-12 parts per 100 parts of water and the amount of pigment is about 1-10%, preferably about 3-8% by weight of the total weight of the composition.

Another particular cosmetic formulation included in the present invention includes a solid talc stick which is a "active ingredient", the particle size of which is typically about 200 mesh or less, more specifically about 200 to 400 mesh (US Standard Series) powder cosmetic grade talc. It is contained. The amount of sodium stearate in this composition is about 1-30 parts, preferably about 8-20 parts per 100 parts water and the amount of talc is about 10-100 parts, preferably about 10-50 parts per 100 parts water.

There may also be two or more active substances within the scope of the present invention. For example, talc sticks may contain bacteriostatic agents and / or fungicides in medicinal powder sticks, such as powder sticks used in the foot, or may contain pigments in talc sticks for coloring matters.

Apart from sodium stearate, water and the "active ingredient", the cosmetic stick composition of the present invention may contain small amounts of ingredients that do not deposit on human skin while primarily changing the properties of the stick composition. It is particularly desirable to contain relatively small amounts of polyhydroxy compounds that can be combined with water, such as glycerin, glycol or polyglycol, in order to change the physical properties of the composition and impart improved “feel”. Suitable glycols and polyglycols include polypropylene glycols having a molecular weight of up to about 25,000 and molecular weights such as propylene glycol, butylene glycol and hexylene glycol, such as glycols and dipropylene glycols having at least 2 carbon atoms, preferably about 3 to 6 carbon atoms Polyglycols such as polyethylene glycols in the range of about 150 to 25,000. Glycols and low molecular weight polyglycols, ie having a molecular weight of about 10,000 or less, are rather soft and useful for supplying compositions that aid in the deposition of "active" ingredients in the user's skin. In contrast, high molecular weight polyglycols such as polyethylene glycol sold as "Carbowax 20M" in Uniol Carbide Corporation are used to increase hardness. Its use allows the preparation of stick-type cosmetics containing up to about 95% by weight of water. In use, the glycol compound contains from about 0.5 to 10%, preferably from about 1 to 8% by weight of the total cosmetic stick composition.

Another component of talc sticks is the colorant of the fragrances for imparting color and aroma to the stick composition. The term "fragrance" as used herein refers to a odor repellant that hides certain odors of other ingredients and thus supplies a "odorless" product, as well as a flavoring additive that gives the composition the desired aroma. As used herein, the term "colorant" refers to dyes or other agents used to impart a particular color or to mask a particular color of the deodorant stick composition. Usually these additives contain from about 0.1 to 1% by weight of the cosmetic stick composition.

It has been found that water is exuded from a solid stick when the cosmetic stick composition of the present invention requires an extreme odor, for example low or about 50 ° or more, such as about 0-4 °. Attempts to use heavy sodium stearate to prevent such "liquid" phenomena have proved unsuccessful because of the creation of hard, beeswax-like compositions. This could be prevented by weighting the poly hydroxyl compound in the composition, but a more expensive product is obtained with the weight of the two components. However, it has been found that the liquor phenomenon is significantly reduced with relatively small amounts of sodium chloride in the composition. It was also found that the addition of sodium chloride resulted in an increased condensation rate as well as the condensation rate of the water-sodium stearate cosmetic stick base of the present invention. Thus, stick-type colon compositions that are too soft for commercial use of stick-type products, such as deodorant colons containing large amounts of perfume essential oils, can be made into cosmetic stick compositions by using sodium chloride.

In order for the condensation point of the composition to be in the range of about 50-60 ° C., preferably about 53-57 ° C., and optimally about 55 ° C., the amount of sodium chloride used must be balanced with the amount of sodium stearate. Determination of the amount of sodium chloride and sodium stearate used in any particular composition can be easily done by routine experimentation. Generally, however, at least about 0.5% by weight, preferably at least about 1% by weight, is usually used with respect to the water-sodium stearate vehicle when using sodium chloride and satisfactory results are obtained when using up to about 5% by weight sodium chloride and about 1.5-2.5% by weight desirable. It is also required that the weight of sodium chloride used should not be heavier than the weight of sodium stearate: that is, the weight ratio of sodium chloride to sodium stearate should not be greater than about 1: 1.

Preferred cosmetic stick compositions of the present invention generally contain at least 90% by weight of the active ingredient, sodium stearate and water, in balance with the polyhydroxyl compound and the flavoring or coloring agent (up to 10% by weight).

The compositions of the present invention are prepared by mixing the components at an altitude, usually about 70-85 ° C., high enough to produce a liquid solution or suspension, pouring the solution into a mold or a dispensing vessel and leaving it to stand for cooling. In some cases a period of hours or days may be required before the cosmetic stick composition is fully solidified. Water and sodium stearate and any other solution or liquid component are mixed first to produce a clear solution, followed by addition of a solid component such as talc or pigment. The mixture is then partially cooled, added with volatile components such as perfume essential oils and finally cooled.

It is illustrated in the following examples.

Example 1

Deodorant stick composition

0.5 to 20 parts by weight of sodium stearate, 93 to 73.5 parts by weight of water, 6 parts by weight of propylene glycol, 0.1 parts by weight of 2,4,4'trichloro-2'hydroxydiphenylether (THDE) and flavoring weight To prepare a series of six compositions containing 0.4 parts. All components of each composition except the fragrance are heated with stirring at 70-75 ° C. to produce a clear solution. After cooling this solution to 60-65 degreeC, a fragrance is added. The resulting solution is poured into a preparation container and left to cool. The hardness of each composition is then tested. The results are summarized below.

Deodorant composition

Compositions D and E containing 8.5 and 10% sodium stearate in the compositions tested had the most balanced properties.

Example 2

Releaser stick composition

The mixture is stirred at 8.5 parts by weight sodium stearate, 6 parts by weight propylene glycol and 84 parts by weight water while heating to 70-75 ° until a clear solution is produced. The composition is cooled to 60-65 ° C. and added 1 part by weight of zinc phenol sulfonic acid and 0.5 part by weight of perfume. The resulting composition is poured into a preparation container and left to cool. When applied to human skin, a firm composition is produced in which deodorants are satisfactorily deposited.

Example 3

Fragrance stick composition

0.5 parts by weight of sodium stearate, 6 parts by weight of propylene glycol and a mixture of perfume concentrate and water are prepared by heating to 70-75 ° C. until sodium stearate, propylene glycol and water are brought to a clear solution with stirring. The solution is cooled to 65 ° C. and flavored concentrate is added. The resulting mixture is poured into a preparation container and left to cool. The hardness of each composition is then tested. The results are summarized below.

Fragrance stick composition

Based on the foregoing, compositions containing up to about 8% of perfume concentrates have physical properties of substantial value as perfume sticks.

Example 4

Sun stick composition

A mixture of 8.5 parts of sodium stearate, 6.0 parts of proglen glycol and 82.5 or 84.3 parts of water is heated at 70-75 ° C. with stirring until a clear solution is obtained and then 3.2 or 1.2 parts of ultraviolet absorber or sunscreen are added. The resulting mixture is poured into a preparation tube, cooled and left to produce a sun stick composition of high hardness. Various compositions are as follows.

Sun stick composition

Example 5

Humectant stick composition

8.5 parts by weight of sodium stearate, 85.5 parts by weight of water, and the tradename of "Crodesta" at Croda, Inc. or the trademarks of "Glucam", "Glucate" and "Glucamate" at Amerchol. The mixture of 6 parts by weight of any sugar derivative commercially available as a wetting agent is heated at 70-75 ° C. with stirring until a clear solution is produced. Each solution is poured into a dispensing vessel and left to produce a humectant stick-type product. The composition is as follows.

Humectant composition

Example 6

Lanolin Stick Composition

A mixture of 8.5 parts by weight of sodium stearate, 6.0 parts by weight of propylene glycol, 75.5 parts by weight of water, and 010.0 parts by weight of lanolin or commercialized lanolin derived value was stirred at 70 to 75 ° C. to pour into a clear solution and cooled. It is left to produce a solid stick-like composition useful as a hand cream.

The sacrifice is as follows:

Lanolin composition

a Laneto, Superset and Ritacol all from Rita Chemicals.

b Aceturan, Soluran, Rishiran and Biskoran are all products of Americol.

Some tackiness was detected in Compositions A and E, which was not found in the other lanolin stick compositions, but both compositions were solid solids useful as "handlosses".

Example 7

Talc stick composition

A series of seven compositions are prepared by mixing sodium stearate, water, propylene glycol and 2,4,4'-trichloro-2'hydroxy (diphenylether) (THDE) and stirring at 70-75 ° C. The composition is removed from heat and talc is added with stirring to produce an even slurry. The slurry is cooled to 60-65 ° C. and flavored. The resulting composition is poured into a stick-type preparation container and left to cool. The resulting composition was evaluated for physical appearance and talc deposition effect. The results are summarized as follows.

Talc stick composition.

The compositions were all solid solids. However, compositions A and B contained insufficient amounts of talc to be satisfactorily deposited upon application to the skin. Composition G was too hard for practical use. Compositions C, D, E and F all deposited sufficient talc upon application to the skin. In addition, talc deposition was very difficult to rub off from the skin large adhesion. Compositions E and F have the most balanced properties.

Example 8

Talc stick composition

8.5 parts of sodium stearate, 6.0 parts of polyethylene glycol and 55.5 parts of water are stirred at 70-75 degreeC. The composition is removed from heat and talc is added with stirring to form a slurry. The resulting composition is poured into a stick-type preparation container, cooled and left to produce a solid talc stick.

Talc stick composition

Example 9

Talc stick composition

A talc stick containing 8.5 parts by weight of sodium stearate, 6.0 parts by weight of polyethylene glycol (Carbowax 6000) having a molecular weight of about 6000 to 7500, 10 to 45 parts of talc, and 75.5 parts to 40.5 parts of water, as described in Example 1 To prepare.

Talc stick composition

All talc sticks are solid and solid.

Example 10

Pigment stick composition

Three pigment sticks were prepared using the same method as described in Example 8 except for using the brown zinc oxide powder pigment instead of or with talc.

Pigment stick composition

All compositions are solid solids with good pigmentation in human skin applications and are useful as "makeup" sticks. Composition C, which contained no talc, was somewhat more sensibly flexible.

Example 11

Evaluation of Stearate

A series of mixtures containing 8.5 parts by weight of stearate, 6.0 parts of propylene glycol and 85.5 parts of water is prepared by stirring and heating at 70-75 ° C. to produce a clear solution, which is then poured into a stick-type lumber container and left to leave the composition. The composition is as follows.

Stearate Composition

All of the compositions except Composition A are extremely flexible and therefore not suitable for use as stick-type cosmetic applications.

Example 12

Evaluation of Glycol Additives

A series of compositions containing 8.5 parts by weight sodium stearate and 85.5 parts by weight of glycol compound are prepared by the method described in Example 11. All produced solid solid sticks that can be used as stick-type cosmetics.

Composition

Similar results are obtained when the glycolic compound is replaced by 6.0 parts per weight of the high molecular weight alcoholic product marketed as "Ucon" by Union Carbide Corporation. Specific products used to form the solid stick type compositions are Yukon LD 500, Yukon 50-HB-260, Yukon 50-HB-660, Yukon 50-HB-5100, Yukon LB-1145 and Yukon LB-1715.

Example 13

2 to 8.5% by weight sodium stearate, 81.5 to 96% water and 2 to 10% carbowax 20M, carbowax 6000 of the two, formed by reacting with epoxide and about 15000 to 20000 sold by Union Carbide Corporation A polyethylene glycol mixture having a molecular weight was prepared to produce a solid stick according to the operation described in Example 11.

In all cases a solid product is obtained that can be used in a fire stick-type formulation.

Composition, weight%

As can be seen, the use of Carbowax 20M allows for compositional formulations such as bisol for solid stick-type cosmetic preparations containing 95 to 96% by weight of water and 2% by weight of sodium stearate and Carbowax 20M. The composition, which was a slightly soft solid but contained only 2% sodium stearate, had an undesirable damp texture upon application. This damp texture is removed when the sodium stearate content is increased to at least 3% by weight. As the amount of sodium steadate increases, the hardness of the composition increases. Changes in the amount of carbowax at each level of sodium stearate tested did not seem to substantially affect product properties.

Example 4

Effect of Sodium Chloride

Stick type products based on four different formulations of water, Carbowax 20M and sodium stearate are as follows.

Composition

Each composition can be modified by adding sodium chloride up to 5% by weight while four compositions come out when the water content is reduced by the same amount. Each resulting composition is stored in a refrigerator at 4 ° C. or in a dry phosphorus at 50 ° C. for 1 to 3 days before evaluating the liquor phenomenon. The dew point of each composition was determined and the dew point is shown in the following table.

In the preceding table, the addition of sodium chloride to the hydrogen based vehicle of the present invention significantly increases the condensation point and at 50 to 60 ° C. the condensation point can be obtained with 1% or less sodium chloride. Formula A-1, containing 94.5% water, 2.0% carbowax 20%, 2.5% sodium stearate and 1% sodium chloride, has a condensation point of 53.5 ° C.

The observed liquid development depends on the amount of sodium chloride. All prescriptions showed a liquefaction when left in the refrigerator or dryer. The dilution in each series is reduced to the presence of 1% sodium chloride and for all practical purposes, it is essentially eliminated by adding 2% sodium chloride.

A further series of experiments is conducted to determine the minimum amount of sodium chloride needed to achieve reduced liquefaction and increased dew point. The basic composition contains 4% by weight of sodium stearate and Carbowax 20M and 62% by weight of water, respectively. Sodium chloride is added as before and the amount of water is reduced by weight. The sodium chloride content and the condensation point of the resulting composition are summarized as follows.

Based on this table and the data in the table, a low weight percent of sodium chloride 0.25 was also shown to be effective in raising the condensation point of the cosmetic vehicle of the present invention. However, at least about 0.5% sodium chloride amount, preferably at least about 1% sodium chloride is necessary to substantially increase the dew point.

Example 15

Deodorant colon stick

Using a method similar to the above, a series of stick-type deodorant colons containing up to 2% of perfume is prepared by adding perfume essential oils to the basic formulations A, B, C and D of Example 14. Particularly based on composition A, it was found that the firmness decreased with increasing amount of perfume oil. In addition, the condensation point of the composition was lowered with the increase in the oil concentration. Thus, specimens containing sodium chloride were further prepared.

In all cases, the condensation point of the composition was increased by the addition of sodium chloride.

The results from this series of experiments are summarized below.

It can be seen from the above results that the side effects of increased enjoyment on the sticking point and physical conditions of the stick can be offset by increasing sodium stearate or adding sodium chloride to the formulation.

The latter method is preferred because sodium chloride is less expensive than sodium stearate and has a greater effect on raising the freezing point of the composition.

The above examples are merely examples of cosmetic forms made using the sodium stearate-water vehicle of the present invention. Other cosmetics are also known to those skilled in the art. For example, a stick-type insect extinguishing agent can be used by mixing an insect commodity compound as an active ingredient.

The condensation points described in Examples 14 and 15 were determined as follows.

(1) The heated solution of the test formulation is placed in a magnetic stirrer and the oligometer is immersed in the formulation solution.

(2) the formulation is cooled and stirred at a moderate to slow speed to maintain a homogeneous mixture;

(3) The temperature at which the formulation is sufficiently viscous to prevent rotation of the stirring rod is taken as the condensation point.

Although the above description is directed to the use of the water-sodium stearate vehicle of the invention as a vehicle for making cosmetics, it should be noted that the vehicle can also be used in compositions for other related applications. For example, solid indoor air deodorants or air purifiers have become of considerable importance. Such deodorants usually consist of about 1 to about 3% of fragrance oil dispersed in a solid vehicle, such as an alcohol gel used in stick-type deodorants. Solid vehicles of this invention provide an inexpensive and excellent vehicle for such compositions.

Claims (1)

100 parts by weight of water with alkaline pH, about 1 to 30 parts by weight of sodium stearate, and at least one cosmetic active ingredient that can be deposited on the human skin and are stable in the liquid alkaline state are 0.5 to 50% by weight of the total weight of the composition. Contained stick-type compositions.