KR20110054224A - Cosmetic pack composition containing ppg-chtosan and alginate salts - Google Patents

Abstract

PURPOSE: A cosmetic composition for peel off type pack containing PPG-chitosan and alginate is provided to shorten drying time and to enhance tensile strength. CONSTITUTION: A cosmetic composition for peel off type pack contains 8-22 weight% of polyvinyl alcohol, 0.1-10 weight% of PPG-chitosan, and 0.01-5 weight% of alginate. The average molecular weight and saponification ratio of polyvinyl alcohol is 55,000-120,000 and 85-89.0 mole%. The PPG-chitosan is denoted by chemical formula 1, wherein the Rc is chitosan. The composition additionally contains aqueous ingredients such as purified water and additives of chelating agent, pigment, perfume, and antiseptic.

Description

Cosmetic composition for packs containing phijichitosan and alginate {Cosmetic pack composition containing PPG-Chtosan and Alginate salts.}

The present invention relates to a cosmetic composition for a peel-off pack containing fiji chitosan, and more particularly, to chitosan obtained by deacetylating chitin, a natural water-soluble polymer, to polyvinyl alcohol used as a film-forming agent in a cosmetic composition for packs. The present invention relates to a cosmetic composition for peel-off type packs, in which glycolytic grafted pipichitosan is mixed and used to shorten the drying time of the film, increase the tensile strength and improve the exfoliation effect.

Normally, the pack moisturizes the skin to soften the dead skin and keeps the skin moisturized, cleansing the skin by adsorbing and removing contaminants, and promoting blood circulation. I have been using it for a long time. These pack cosmetics can be used for topical or whole body as well as face, neck, shoulder, abdomen, leg, etc. Peel-off type, cream, clay , Jelly, Tissue-off type and wash-off type used as aerosol, Peel-off type after solidification, Non-woven gel, Non-woven fabric impregnation type, etc. It is becoming.

Among them, the peel-off type pack product has the advantage of ease of use, while the drying speed of the film is low, or the strength of the film is weak, there is a problem that is not easily torn off and removed from the skin.

 The reason for this problem is that the peel strength-type pack product has a weak tensile strength of a polyvinyl alcohol, which is used as a main film forming agent, in a general use content (8 to 22% by weight). .

In order to solve this problem, it is necessary to increase the content of polyvinyl alcohol in the formulation, or to use various high molecular materials such as hydroxypropyl guar, polyvinylpyrrolidone, carboxymethyl cellulose or xanthan gum. A method has been proposed.

In the method of increasing the content of polyvinyl alcohol, to increase the tensile strength of the film significantly, the polyvinyl alcohol content should be increased to 22% by weight or more. However, when containing 20% by weight or more of polyvinyl alcohol, the tensile strength of the film is increased, but the drying speed is slow, or the viscosity of the product is too high spreadability is not good, there is a disadvantage that the feeling is very bad.

In addition, the method of using a mixture of conventional polymer materials such as hydroxypropyl guar, polyvinylpyrrolidone, carboxymethyl cellulose, xanthan gum, and the like, fundamentally improves the film strength because the tensile strength of the film does not increase as desired. Is difficult.

Korean Patent Publication No. 2000-46972 uses a mixture of chitosan and inorganic salts to increase the tensile strength of the film and has a cosmetic composition for packs having antibacterial activity.

Although disclosed, the drying rate of the film is relatively low, there is a problem that the exfoliation effect is falling.

U.S. Patent No. 5,747,022 discloses a cosmetic composition for a pack using a mixture of polyvinyl alcohol and a lipophilic acrylate or methacrylate polymer, but this has only the effect of speeding up the drying speed and the desired tensile strength of the film. It cannot be raised. Japanese Patent Application Laid-Open No. 10-45531 discloses a cosmetic composition for a pack in which the drying time can be known by changing the color of the film upon drying by adding a silicone derivative, but this gives an effect of knowing the removal time of the pack. It is not related to increasing the tensile strength of the film.

As described above, there have been many studies among those skilled in the art to improve the quality of cosmetic pack products, but the products developed to facilitate the removal of the pack after drying have been disclosed by significantly increasing the tensile strength while increasing the drying speed of the film. not.

Therefore, the technical problem to be solved by the present invention is to solve the above problems by increasing the drying time of the film and at the same time to increase the tensile strength is not a phenomenon of tearing or fragments of the film when removing the film, peel off improved the exfoliation effect

It is providing the cosmetic composition for type packs.

The cosmetic composition for a peel-off pack containing polyvinyl alcohol, fiji chitosan and alginate of the content according to the present invention as a film-forming agent can shorten the drying time of the film and increase the tensile strength of the film for a short time. The pack can be used and the film can also be peeled clean from the skin upon removal of the pack. In addition, by adding the fiji chitosan and alginate to the cosmetic composition for the pack to facilitate the use and to exfoliate effect, which is the role of the pack.

In order to achieve the above technical problem, in the cosmetic composition for a peel off type pack, 8 to 22% by weight of polyvinyl alcohol, 0.1 to 10% by weight of fiji chitosan, and 0.01 to 5% by weight of alginate are used. It provides a peeling-type cosmetic composition for the pack, characterized in that it comprises.

The polyvinyl alcohol, fiji chitosan and alginic acid salts contained in the cosmetic composition according to the present invention are preferably 12 to 17% by weight, 0.5 to 5% by weight and 0.2 to 2% by weight, respectively.

The average molecular weight and saponification degree of the polyvinyl alcohol contained in the cosmetic composition according to the present invention are preferably 55,000 to 120,000 and 85.0 to 89.0 mol%, respectively.

Hereinafter, the peel-off type pack cosmetic composition according to the present invention will be described in more detail.

Polyvinyl alcohol, which is a film-forming agent, contained in the cosmetic composition for peel-off type pack according to the present invention is a synthetic polymer that is widely used as a cosmetic raw material as a water-soluble polymer. Polyvinyl alcohol is synthesized through polymerization and hydrolysis from vinyl acetate, and when acetylated intermediate polyvinyl acetate is deacetylated, some acetyl groups remain as impurities.

The grade will be divided. Among them, 86 to 89% hydrolyzed is mainly used as a raw material of cosmetics, since the solubility at room temperature and high temperature is maximized in this category.

The cosmetic composition of the present invention comprises 8 to 22% by weight, preferably 12 to 17% by weight of polyvinyl alcohol based on the total weight. If the content of the polyvinyl alcohol is less than 8% by weight, the strength of the film is remarkably difficult to commercialize, and if it exceeds 20% by weight, the drying rate of the film is not only slow, but the viscosity is high, so the usability is not good.

It is preferable to use polyvinyl alcohol having an average molecular weight of about 60,000 to 100,000 and a saponification degree of 86.5 to 89.0 mol%, and polyvinyl alcohol having such a property is, for example, Japan Kuraray Chemical Co., Ltd. (product name: P PVA 217) or the like.

In addition, the cosmetic composition for a pack according to the present invention is 0.1 to 10% by weight, preferably 0.5 to 5% by weight based on the total weight in order to speed up the drying speed of the film and to increase the tensile strength of the film and the exfoliation effect of the skin. It contains the fiji chitosan represented by following General formula (1).

Formula 1

(Wherein, Rc is chitosan.)

Fiji chitosan used in the present invention is a chitosan derivative to which polypropylene glycol is bound, and is characterized by grafting polypropylene glycol to an amino group or a hydroxy group of chitosan or partially deacetylated chitosan by a nucleophilic substitution reaction. Said blood

Fiji chitosan is used in hair products to protect hair, give conditioning effects and have antibacterial properties, so it is applied to skin and hair cosmetics to provide cosmetics with antibacterial effect.

When added to the cosmetic composition according to the present invention, while increasing the drying speed of the film to increase the tensile strength of the film as well as to exert the effect of increasing the exfoliation effect of the skin. If the content of fiji chitosan having such a complex effect is less than 0.1% by weight, the effect of increasing the tensile strength of the film is insignificant. If it exceeds 10% by weight, the solubility of polyvinyl alcohol is increased.

It is drastically dropped, making it difficult to commercialize and slowing down the drying speed of the film. Alginic acid salt used in the present invention is a polysaccharide obtained from brown algae is mainly used as a dental or surgical framework, when added to the cosmetic according to the present invention to increase the tensile strength of the film as well as to speed up the drying speed of the film Exfoliation effect also exerts an effect. If the alginate content is less than 0.01% by weight, the effect of increasing the tensile strength of the film is insignificant. If the alginate content is more than 5% by weight, the solubility of the polyvinyl alcohol is reduced, making it difficult to commercialize and slowing down the drying speed of the film.

The cosmetic composition for a peel off type pack according to the present invention includes an aqueous component such as purified water in order to prepare a pack of a peel off type pack, and may include various additives such as metal ion sequestrants, pigments, flavors, and preservatives.

Hereinafter, the present invention will be described in detail with reference to Examples. However, embodiments according to the present invention may be modified in many different forms, the scope of the present invention is not limited to the embodiments described below.

Examples 1 to 3

It was prepared as follows using the components of the content described in Table 1 below.

After dispersing the fiji chitosan and alginate and dissolving it in an aqueous phase at room temperature

Heated, polyvinyl alcohol was added, stirred for 30 minutes or more, and mixed well. An oil phase including ethanol and other components were added thereto, mixed, and cooled to room temperature to prepare a product.

Comparative Examples 1 to 6

The same method as in Examples 1 to 3, except for using carboxymethylcellulose, hydroxypropylgua, polyvinylpyrrolidone in place of the fijichitosan and alginate, using the components of the contents shown in Table 1 below. The product was prepared.

TABLE 1

a): Purified water is added so that the total content of the components is 100% by weight.

b) Product name PVP 217 (Kurarayisa, Japan)

c) Product name Manucol LB (ISP, USA)

d) Product Name KDA-1254 (Korea Ginseang, Korea)

e): Product name Jaguar HP 60 (Rhodia, France)

f) Product Name PVP K-30 (ISP, USA)

The products obtained from Examples 1 to 3 and Comparative Examples 1 to 5 were subjected to the drying time, tensile strength, and exfoliation effect test as follows.

<Measurement of drying time>

In order to measure the drying time of the film formed from the products obtained in Examples 1 to 3 and Comparative Examples 1 to 5, a moisture analyzer (Moisture Analyzer, Satorius Model MA50) was used. First weigh exactly 2 g of the sample and place it on an aluminum plate.

The weight change was measured while uniformly applying and evaporating the moisture at 40 ° C., and the drying time was determined using the end point as the time when there was no further weight change (drying). The average value of each sample 10 times is shown in Table 2 below.

<Measurement of tensile strength of film>

Tensile strength of the film was measured using a universal testing machine (Chatillon, Model Vitrodyne V1000) as follows. That is, the samples obtained from Examples 1 to 3 and Comparative Examples 1 to 5 were applied to have a constant thickness (0.1 mm), respectively, and dried in a 40 ° C. thermostat for 25 minutes to produce a 1.5 cm × 1.5 cm film. The tension test (3 mm / sec) was performed using the universal testing machine.

All. The point of time (force) that was cut because the tensile force of the film was not overcome was determined as the tensile strength, and the measurement results are shown in Table 2, which was averaged by performing 10 times of each sample.

<Measurement of exfoliation effect>

To investigate the exfoliation effect, 30 healthy men aged 25 to 45 years were selected as subjects. Before applying the samples obtained in Examples 1 to 3 and Comparative Examples 1 to 5, the color inside the upper arm upper arm of the test subject was measured with a chroma meter (CR-200, Minolta, Japan), and the upper arm upper arm Ten of the sites were selected and colored in brown by about 0.4 ml of dihydroxy acetone (DHA) at 10% concentration in the Hill top chamber (The Hill Top Companies). Then, each sample was applied to the colored area (9 places), and after 25 minutes, the sample was

The color difference between the sample and the sample was measured by measuring the color of the stained portion. Thereafter, the sample was applied twice a day and then removed, and the degree of discoloration was measured by a chromameter every day, and the time taken to return to the original skin color was measured.

The results are averaged and shown in Table 2.

TABLE 2

*: No sample applied after staining with DHA

As shown in Table 2, Examples 1 to 3 containing fiji chitosan and alginate according to the present invention not only significantly reduced drying time than Comparative Examples 1 to 5, but also had excellent tensile strength and exfoliation effect. It was. On the other hand, Comparative Example 2 is to increase the content of polyvinyl alcohol without the addition of fiji chitosan and alginate, it has excellent tensile strength and exfoliation effect, but polyvinyl

It can be seen that the drying time is relatively long because of the high content of alcohol, which is not preferable. As described above, the cosmetic composition for a pack according to an embodiment of the present invention can increase the tensile strength while shortening the drying time of the film, and at the same time, the exfoliation effect was also excellent.

Claims (1)

Claim 1. A cosmetic composition for a peel off type pack, wherein the peel off type pack comprises 8 to 22% by weight of polyvinyl alcohol, 0.1 to 10% by weight of fiji chitosan, and 0.01 to 5% by weight of alginate. Cosmetic composition. Claim 2. According to claim 1, wherein the content of the polyvinyl alcohol, fiji chitosan and alginate content of 12 to 17% by weight, 0.5 to 5% by weight and 0.2 to 2% by weight cosmetic composition for a pack off pack. Claim 3. The cosmetic composition for a peel-off type pack according to claim 1, wherein the average molecular weight and saponification degree of the polyvinyl alcohol are 55,000 to 120,000 and 85 to 89.0 mol%, respectively.