The method of producing a liquid cosmetic creams

 

(57) Abstract:

Cosmetic cream is produced by melting fat ingredients, the preparation of an aqueous solution of water-soluble ingredients, mixing at an elevated temperature, cooling, perfumowana and emulsification of the composition by passing through vibrocavitational homogenizer with a fixed work item - a stator and a movable work element for the rotor at a flow rate of the composition is not more than 0.5 g/cm2/with the working surface of the rotor per second and the speed of rotation of the last not less than 12 m/s Method allows to obtain a product having a high degree of homogeneity, which ensures its colloidal stability during the entire storage period.

The invention relates to the cosmetic industry and can be used in the manufacture of cosmetics.

The process of obtaining liquid creams provides the following operations:

the preparation of an aqueous solution of water-soluble components;

melting solid and viscous components;

emulsification;

cooling of the emulsion;

perfumowana.

The emulsion is usually prepared at a temperature atoron, which constantly stirs the mixture components. By mixing the emulsion cook for 30-40 minutes, the Mixture can be homogenized using a roller mill, i.e., in the apparatus, where they perform the transmission of matter through rotating rollers with adjustable gap (Agricultural Vilano. Cosmetic chemistry. Ed. World, 1990, S. 137).

A known method of producing cream. C. 1666112, BI, No. 28, 1991, A 61 K 7/00), including the melting of the fatty raw material at 80oC for 10 min, dissolution of non-fat components when heated to 80 oC and stirring for 10 minutes To fat base, add a solution of non-fat components, emuleret for 10 min at 80oC. the resulting cream is cooled to 40oC.

Separately prepare the composition of biologically active and aromatics. Both compositions are mixed at 40oC for 20 min in the apparatus with stirrer. The resulting cream has stability at 60 6-month storage.

A known method of producing cream for aging skin, including melting fatty components in the apparatus with a stirrer at a temperature of 70-75oC. Separately prepared solution of non-fat components and added to the molten fatty basis. Emulsification MTOM cream is subjected to rolling.

In accordance with the above methods get creams that lack a high degree of dispersion of the particles, with the result of the delamination of the emulsion, the deterioration of the quality of the cream.

The task of the invention to provide any creams consistency with a high degree of homogenization, providing a stable colloidal and thermal stability.

The problem is solved as follows: carry out the melting of the fat ingredients, the preparation of an aqueous solution of non-fat components, mixing and crude stirring for 10 min, followed by emulsification with fibroepithelioma exposure in the homogenizer rotating work item rotor with a perforated surface and a fixed working element of the stator.

Specific consumption of the composition passing through the homogenizer is not more than 0.5 g/cm2the working surface of the rotor per second when the rotation speed of the last not less than 12 m/s

Vibrational homogenizer is a case with a lid, on which is located the inlet pipe. In the case coaxially with the input coupling is a shaft with a fixed rotor, which consists of the end of the posture and decrease the speed of rotation of the rotor will reduce the quality of the obtained composition, its homogeneity, increase the maximum size of the particles and reduction of colloidal stability. The colloidal stability of the composition is complex, depending on the size and chemical nature of the particles, the presence of stabilizers and surfactants. Vibrocavitation impact ensures optimization of mass transfer processes. Inventive step is expressed in a new approach to the process of emulsification of the ingredients in obtaining cosmetic cream that provides a high degree of homogenization due to the disaggregation of the particles and their uniform distribution in the mass.

Due vibrocavitational exposure increases the surface activity of dispersed particles and, consequently, accelerate the formation of the boundary surfaces with the required properties, providing a high homogeneity and stability of the composition.

Thus, the invention meets the criterion of "novelty and inventive step".

Example 1. Fatty components: stone fruit oil 10 g perfume oil 8 g, stearin cosmetic 8 g, the wax emulsion 3 g, beeswax 3 g load in a container and heated to 80oC, is melting the fat componenls 1 g, alcohol-glycerin herbal extracts, 5 g and dissolved in 60 g of water at 75-80oC. the Molten fatty components is injected into the hot aqueous solution and stirred for 10 minutes then the mass is cooled to 40-45oC, add 0.5 g of benzyl alcohol and 0.5 g of odorants, followed by emulsification vibrocavitational way when the rotor speed is 12 m/s and the specific passage of the composition through vibrocavitational homogenizer 0.5 g/cm2the working surface of the rotor per second. The process of emulsification is carried out for 3 minutes Colloidal and thermal stability of the cream matches the OST 18-21-81. A particle size of not more than 1 MK.

Example 2. Analogously to example 1 to prepare a mixture of the fatty components and neirologa raw materials. Vibrocavitation exposure is carried out at a rotor speed of 20 m/s and specific discharge passage of the composition through the homogenizer 0.3 g/cm2. Colloidal and thermal stability corresponds OST 18-21-81. A particle size of not more than 1 MK.

As seen from the above examples, getting cream in the emulsification using vibrocavitational exposure allows for a short time to obtain a product having high Stephenie good performance characteristics over the entire period of storage.

When implementing existing methods of particle size is obtained in the compositions of not less than 5 MK, indicating their lack of disaggregation, leading to delamination during storage.

The method of producing a liquid cosmetic creams, including melt mixing liquid ingredients with an aqueous solution of water-soluble ingredients and vibrocavitational processing composition, characterized in that vibrocavitational treatment is carried out in a homogenizer having a stator and a rotor, with the specific consumption of the composition is not more than 0.5 g/cm2/with the working surface of the rotor and a circumferential speed of at least 12 m/s

 

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FIELD: biologically active substances.

SUBSTANCE: invention relates to medical desinsection, household chemistry, and plant protection agents, in particular to contact- and intestinal-type insecticidal and acaricidal preparation, which can be used in medical desinsection area, agriculture, personal support farms, and urban domestic life for controlling pest insects and ticks. Insectoacaricidal agent of invention containing an active principle, preferably of pyrethroid series (e.g. cypermetrin), and solvent additionally contains effective amounts of dodecyldimethylammonium bromide molten together with active principle. Amounts of dodecyldimethylammonium bromide and cypermetrin may vary each between 10 and 500 g/L. Solvent can be deodorized kerosene.

EFFECT: achieved stability, efficiency, low price, and toxic safety of claimed agent.

5 cl, 2 tbl, 2 ex

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