KR19990012219A - Patch Type Sebum Removal Cosmetic - Google Patents

Abstract

The present invention is dispersed by adding 10-50% by weight of nonionic water-soluble polymer and 5-50% by weight of inorganic powder to 55-75% by weight of ionized water, followed by adding 1-2% by weight of plasticizer, followed by 0.01- Prepared by adding 0.1% by weight of dimethicone polyol dropwise, stirring at 150-500 rpm for 30 minutes, aging for 1 day, and then completely removing bubbles to apply a non-woven fabric to a thickness of 10-200 μm and then drying it. It relates to a cosmetic for patch sebum removal.

The patch-type sebum removal cosmetics according to the present invention solve the skin irritation problem indicated by conventional ionic resins by using a nonionic water-soluble polymer as its base component, and also reduce the affinity with relatively anionic hair. It also prevents the side effects of removing micro hairs on the surface and shows excellent effects in terms of sebum removal.

Description

Patch Type Sebum Removal Cosmetic

The present invention relates to a cosmetic for patch sebum removal. More specifically, by applying a nonionic water-soluble polymer, the patch-type sebum removal cosmetics have the advantages of improving sebum removal ability, solving the polymer residual problem after sebum removal, and improving convenience of use and shortening drying time. It is about.

In general, there are two types of cosmetics for removing sebum, a pack type and a patch type, and the pack type is a type for removing sebum using a water-soluble polymer such as polyvinyl alcohol or polyvinylpyrrolidone, and the patch type is ionic. It is known to remove sebum using a polymer.

Packed cosmetics are disadvantageous in terms of sebum removal power and skin retention as compared to patch type. Especially in the removal of the polymer film, the pack type has a problem of remaining in the skin due to the relatively easy removal of the polymer film due to the mechanical properties of the polymer itself, and also in the sebum removal power, the mechanical property of the pack type polymer is more flexible than the patch type. Since the traction force of the relatively sebum removal effect is significantly lower than the patch type.

Conventional patch-like sebum removal cosmetics are described in US Patent No. 5512277, which is a patch-like cosmetics coated on a nonwoven fabric using an inorganic powder and a plasticizer, such as ethylene glycol, in an ionic polymer. The effects of the polymers may cause skin irritation, and the cationic polymers have an affinity with microhairs and thus have a disadvantage of causing skin pain when removing patches attached to the skin.

Accordingly, the present inventors have studied diligently to solve the above disadvantages, and as a result, by applying a nonionic water-soluble polymer instead of the conventional ionic polymer, the improvement of sebum removal power as well as the residual problem of the polymer accompanying sebum after removal The present invention has been completed by developing a cosmetic that can remove sebum in the form of patches with the advantages of solving the problem, improving the ease of use and shortening the drying time.

That is, an object of the present invention is to provide a patch-type sebum removal cosmetics prepared by applying a base containing a nonionic water-soluble polymer, an inorganic powder, a plasticizer, a dimethicone conpolyol and the like to a nonwoven fabric.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.

The patch-type sebum removal cosmetics according to the present invention solve the skin irritation problem indicated by conventional ionic resins by using a nonionic water-soluble polymer as its base component, and also reduce the affinity with relatively anionic hair. It also prevents the side effects of removing micro hairs on the surface and shows excellent effects in terms of sebum removal.

In the present invention, the sebum removal action works by absorbing the sebum in which the nonionic water-soluble polymer is immersed in the skin pores and then pulling out and removing the sebum in the shrinked polymer using the drying characteristics of the water-soluble polymer.

Patch type sebum removal cosmetics according to the present invention is dispersed by adding 10-50% by weight of nonionic water-soluble polymer and 5-50% by weight of inorganic powder in 55-75% by weight of ionized water, 1-2% by weight Plasticizer was added, and then 0.01-0.1% by weight of dimethicone polyol was added dropwise, stirred at 150-500 rpm for 30 minutes, and aged for 1 day. It is prepared by applying and then drying.

In the present invention, the nonionic water-soluble polymer is preferably polyvinyl alcohol, water-soluble cellulose, polyvinylpyrrolidone or polyvinylformamide. By applying such nonionic water-soluble polymers, skin activability is significantly reduced compared to conventional ionic resins, and affinity with relatively anionic hair is also lowered to prevent side effects of removing fine hairs from the skin surface. It is also excellent in sebum removal effect. If the content of the nonionic water-soluble polymer is less than 10% by weight, there is a disadvantage in that the sebum pulling force is lowered, and when the content of the nonionic water-soluble polymer exceeds 50% by weight, the sebum pulling force is excellent, but the layer separation of the resin occurs due to prolonged drying time and the performance deteriorates It is not desirable.

The inorganic powder not only improves sebum removal ability, but also is involved in the color of the base and the dimensional stability after the coating of the base, and the inorganic powder is any one selected from titanium dioxide, zinc oxide, sericite, talc, silica and benton. Two or more are used, and the particle size of the inorganic powder is preferably 0.5-100 μm. If the content of the inorganic powder is less than 5% by weight, there is a disadvantage in that the dimensional stability of the film is lowered, if it exceeds 50% by weight there is a disadvantage that the sebum removal force is relatively reduced. In addition, if the particle size of the inorganic powder is less than 0.5㎛, there is a dust problem in the process, if it exceeds 100㎛ there is a problem in the smoothness and processability of the film.

The plasticizer is used to control the processability of the polymer resin and the adhesion to the skin, preferably ethylene glycol is used, if the content is less than 1% by weight, the flexibility is reduced to reduce the molding force of the polymer resin itself When applied to non-woven fabrics, the stiffness of the resin appears, and there is a disadvantage of causing skin pain when removing the patch after applying the cosmetic according to the present invention, if exceeding 2% by weight, the flexibility of the polymer resin is increased to remove sebum There is a drawback to the ability to drop significantly.

If the amount of dimethicone polyol is less than 0.01% by weight, the base remains in the skin and there is a disadvantage of causing skin pain when removing the patch after applying the cosmetic according to the present invention, and if more than 0.1% by weight of dimethicone Polyols act on the interface between the skin and the resin, resulting in a decrease in adhesion.

If the thickness of the base to be applied to the nonwoven fabric is less than 10㎛, sebum removal power is considerably lowered. If it is larger than 200㎛, the substrate remains on the skin surface due to the difference in drying time or separation due to the difference in moisture content of the film when removing the patch. Cause.

Hereinafter, preferred embodiments of the present invention will be described in detail. The examples described below are merely exemplary of the present invention, and the present invention is not limited to the examples.

Example 1

40 g of polyvinylformamide and 20 g of titanium dioxide were added and dispersed in 100 g of ionized water, and then 2 g of ethylene glycol, a plasticizer, was added thereto. 0.05 g of dimethicone polyol was added dropwise to the solution thus prepared, stirred at 200 rpm, aged for 24 hours, and then completely bubbled to prepare a base, which was then coated with a non-woven fabric with a thickness of 150 μm and dried to remove patch type sebum. Was prepared.

Example 2

60 g of polyvinylformamide, 5 g of titanium dioxide, and 10 g of sericite were added and dispersed in 100 g of ionized water, and then 3 g of ethylene glycol, a plasticizer, was added thereto. 0.05 g of dimethicone polyol was added dropwise to the solution thus prepared, stirred at 150 rpm, aged for 24 hours, and then completely bubbled to prepare a base, which was then coated on a nonwoven fabric with a thickness of 100 μm and dried to remove the patch type sebum. Was prepared.

Comparative Example 1

60 g of polyquaternium-37, 50 g of titanium dioxide, and 10 g of sericite were added and dispersed in 100 g of ionized water, and then 3 g of ethylene glycol, a plasticizer, was added thereto. 0.05 g of dimethicone polyol was added dropwise to the solution thus prepared, stirred at 150 rpm, aged for 24 hours, and then completely bubbled to prepare a base, which was then coated on a nonwoven fabric with a thickness of 100 μm and dried to remove the patch type sebum. Was prepared.

Example 1.2 above. As a cosmetic and a control prepared in Comparative Example 1, the pack cosmetics, which are currently used in general, were used as samples, and the drying speed of these samples, that is, the time until the dry drying did not occur after standing at room temperature, was measured. Sensory evaluation was carried out on the skin irritation and sebum removal effect (15 minutes). The results are shown in Tables 1, 2, and 3.

Sensory evaluation was performed according to the human sensory test (J. SOC. COSMET. CHEM., 28, 197-209, 1977). That is, the subjects displayed the intensity of the stimulus during 30 minutes and 1 minute to 10 minutes after applying the pack for 30 males and 30 females. At this time, the stimulus intensity was 0 points for no play and 1 point for stimulation. In addition, the sebum removal effect was given one point to the sample that had the highest effect after relative comparison of the amount of sebum discharged after using each sample every 2-3 days.

TABLE 1

Time until the sample is not dried after standing at room temperature

TABLE 2

Irritation to the skin during the drying time (15 minutes)

TABLE 3

Sebum removal effect

As shown in Tables 1-3, Examples 1 and 2 are shorter drying time than Comparative Example 1, the control group, significantly lower irritation to the skin, it can be seen that also excellent in the sebum removal effect.

As described above, the patch-type sebum removal cosmetics according to the present invention solve the problem of residual polymers after sebum removal, sebum removal ability is improved, ease of use is improved, drying time after applying the cosmetic to the skin There are advantages such as being shortened.

Claims (5)

A non-ionic water-soluble polymer 10-50% by weight, inorganic powder 5-50% by weight, plasticizer 1-2% by weight, a dimethicone polyol prepared by applying a base prepared in a composition comprising 0.01-0.1% by weight to the nonwoven fabric Patch type sebum removal cosmetics to be made. 2. The patch-type sebum removal cosmetic according to claim 1, wherein the nonionic water-soluble polymer is selected from polyvinyl alcohol, water-soluble cellulose, polyvinylpyrrolidone and polyvinylformamide. The method of claim 1, wherein the inorganic powder is any one or more selected from titanium dioxide, zinc oxide, sericite, talc, silica and benton, patch type sebum removal cosmetics. 4. The patch-like sebum removal cosmetic according to claim 3, wherein the inorganic powder has a particle size in a range of 0.5-100 µm. 2. The patch-like sebum removal cosmetic according to claim 1, wherein the cosmetic material is in the range of 10-200 mu m of the thickness of the base applied to the nonwoven fabric.