KR101044853B1 - Aqueous nail lacquer composition - Google Patents

Abstract

PURPOSE: An aqueous nail composition containing water dispersion polyurethane is provided to ensure anti-bacterial activity and excellent biocompatibility. CONSTITUTION: An aqueous nail lacquer composition contains water dispersion polyurethane resin using polycarbonate polyol. The polycarbonate polyol is contained in 15-40 weight% based on total weight of the nail laquer. The composition additionally contains 1-15 weight% of dye and perfume as an additive. The water dispersion polyurethane resin contains 4-8 weight% of IPD(Isophorone diisocyanate), 20-30 weight% of polycarbonate diol, 2-4 weight% of carboxyl group diol, 2-4 weight% of TEA(triethylamine), and 60-70 weight%.

Description

Aqueous nail lacquer composition {AQUEOUS NAIL LACQUER COMPOSITE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aqueous nail lacquer for forming a film on a nail and nails, and more particularly, to an aqueous nail lacquer composed of polycarbonate polyols. The present invention relates to a nail lacquer composition.

Common manicure is used to beautifully decorate keratin, such as nails and nails, or to treat the nails and nails. As a solvent, it is used as acetone alcohol or plasticizer as a solvent in nitrocellulose or vinyl-based resin. It is made by adding camphor, ethyl benzoate, etc. and adding a pigment.

Most manicures according to the prior art are not environmentally friendly by using organic solvents such as acetone, and when the nails are applied to the nails to decorate the nails beautifully, the smell of the organic solvents is not preferable. In addition, the conventional manicure using acetone has a lot of restrictions in the place of use because there is a risk of explosion and vulnerable to heat, the user has a risk of fire when carrying.

In order to solve the problem of nail polish using an organic solvent, water-based nail polish has been developed. In water-based nail polishes, the aqueous phase is commonly known to thicken using thickeners. An example of such a product is publication 2000-0017200 (published on March 25, 2000) "High viscosity aqueous nail polish".

The "high viscosity aqueous nail polish" disclosed in the above patent document contains at least a polyester-polyurethane, an acrylate copolymer and an associated polyurethane in an effective amount so that the viscosity of the composition is at least 2 Pascal seconds (Pa · s). It contains an aqueous dispersion of formable polymer particles. The associative polyurethane is a C ₁₆ -OE ₁₂₀ -C ₁₆ polymer sold by HULS (trade name Serad FX1100, a molecule having a urethane functional group and having a weight average molecular weight of 1300), and OE is an oxyethylene moiety. The associating polymer may also be Rheolate 205, or Rheolate 208 or 204, with urea functionalities available from RHEOX. Such associative polyurethanes are commercially available in their pure form.

However, the composition of the high-viscosity aqueous nail polish disclosed in the above patent document has good hydrophilicity and hydrolysis resistance by using polyester-polyurethane and associative polyurethane as an aqueous dispersion of a film-forming polymer, but has antibacterial and deterioration resistance characteristics and There was a problem of poor biocompatibility.

Accordingly, an object of the present invention is to provide an aqueous nail lacquer having excellent biocompatibility, effectively forming a coating film on the hands and toenails as a waterborne polyurethane resin using a polycarbonate polyol.

Another object of the present invention is to form an aqueous nail lacquer as a water-dispersed polyurethane resin using a polycarbonate polyol having excellent hydrophilicity, and to adjust the viscosity by adjusting the amount of any one selected from thickeners or water in order to use it. It is to provide an aqueous nail lacquer composition having a physical property.

The present invention for achieving the above object is to adjust the amount of any one selected from a thickener or water to the water-dispersed polyurethane resin using a polycarbonate polyol, the viscosity of the composition measured at room temperature has a physical property of 2 to 3 poise (poise) Characterized in having a.

The gist of the present invention is the use of a water-dispersible polyurethane resin that uses a polycarbonate polyol of film-forming polymer particles formed on the hands and toenails in an amount effective so that the viscosity measured at normal temperature is 2-3 poises.

Polycarbonate polyols have a wide range of excellent mechanical properties and have been used to prepare biomaterials having excellent biocompatibility, and the use of polycarbonate polyols has better hydrolysis resistance and improvement compared to polyester and polyether polyols. Deterioration characteristics and oil resistance can be achieved, and the antibacterial and toughness (strong and toughness) of the polyurethane is increased.

The present inventors have found that a remarkable effect can be achieved when the water-dispersed polyurethane resin formed using a polycarbonate polyol is used as a manicure material. For example, it is easy to electrodeposit on hands and feet, has excellent hydrolysis resistance, can maintain gloss for a long time, and has the advantage of inhibiting bacterial growth of nails due to antibacterial resistance.

When the viscosity of the aqueous nail lacquer resin containing the water-dispersed polyurethane resin formed using a polycarbonate polyol according to the present invention is less than two poises, the coating film is thin when applied to the nail using a brush and repeatedly applied several times ( Coating) occurs, and when it exceeds 3 poises, smoothness is lowered, which causes inconvenience to use.

Preferably, the viscosity of the water-dispersed polyurethane resin according to the present invention may be in the range of 2-3 poise.

The polycarbonate polyol contained in the water-dispersed polyurethane resin according to the embodiment of the present invention is preferably to have a viscosity of 2 to 3 poise, including 15 to 45% by weight based on the total weight of the water-dispersed polyurethane resin.

The polycarbonate polyol is preferably composed using polycarbonate diol.

The water-dispersed polyurethane resin of the aqueous nail lacquer according to another embodiment of the present invention is preferably mixed so that the amount of the remaining substance is 30 to 40% of the total weight after water is evaporated.

4-8 wt% of Isophorone diisocyanate (IPDI),

20-30% by weight of polycarbonate diol (hereinafter referred to as "PCD"),

2 to 4% by weight of carboxylic diol,

2-4% by weight of triethylamine (TEA),

60 to 70% by weight of water (water) by mixing the amount of the residual material after the water is evaporated it is preferable to form 30 to 40% by weight relative to the total weight.

In the above, IPDI (Isophorone Diisocyanate) is a kind of isocyanate, which is a cycloaliphatic diisocyanate having a ring, and the physical properties of the water-dispersed polyurethane resin produced according to the amount thereof are 4 ~. It is preferable to use it at 8 weight%.

The water-dispersed polyurethane resin mixed and mixed as described above can be usefully used for manufacturing a nail polish to form a coating film on the hands and toenails.

In addition, the water-dispersible polyurethane resin composition according to the present invention may contain additives commonly used in cosmetic compositions. Examples of the additives may be fragrances, pigments or dyes, dispersants, humectants, ethyl alcohol.

The nail polish composition containing the water-dispersed polyurethane resin according to the present invention may be applied alone or mixed with a thickener to be applied to the nail by a brush, for example, at a viscosity of 2 to 3 poises, so as to be applied to actual or imitation nails and nails. Applying can seek beauty.

Aqueous nail lacquer according to an embodiment of the present invention is a water-dispersed polyurethane resin using a polycarbonate polyol having excellent water dispersing properties, hydrolysis resistance and antibacterial resistance, and has excellent biocompatibility, so that it is easily applied onto a fingernail and a nail and is coated with a brush. The thickness of can be made uniform. In addition, by making the nail polish aqueous, it can be easily peeled off without using acetone.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. It should be noted that the embodiments of the present invention described below are intended to sufficiently convey the spirit of the present invention to those skilled in the art.

[Example]

A nail polish having the following composition is prepared by mixing it in a mixer placed at room temperature.

80 to 87% by weight of water-dispersed polyurethane resin, 0.0 to 1% by weight of thickener, and 10 to 20% by weight of water are prepared by mixing 30-40% by weight of dried polycarbonate polyol.

In the above, the middle agent is to increase the viscosity, but if the amount is increased, the water resistance of the water-dispersed polyurethane resin is inferior, it is preferable to adjust within 1% of the total weight.

The water-dispersed polyurethane resin is 4-8% by weight of IPDI (Isophorone diisocyanate), PCD 20-30% by weight, carboxyl diol 2-4% by weight, water 60-70% by weight, EDA 2-4% by weight of water After the evaporation, the amount of the remaining substance is preferably 30 to 40% by weight based on the total weight.

The polycarbonate diol may be any one selected from those sold under the trade name "L4672, L6002 or L5652" by Asahi Kasei Corp. in Japan.

At this time, it is preferable to adjust the amount of thickener or water so that the final composition has a viscosity of 2 to 3 poise, and if necessary, adjust the amount of water without using a thickener to adjust the viscosity of the water-dispersed polyurethane resin. It is preferable that the viscosity of the water-dispersed polyurethane resin composition is close to two poises.

As described above, in the nail polish composition prepared using the water-dispersed polyurethane resin using the polycarbonate polyol, 1-15% by weight of a pigment (dye) and 0.5-2% by weight of a dispersant may be selectively used. Reveal. For example, it may not be used when forming a colorless nail polish without color.

In addition, 1 to 5% by weight of fragrance and 0.5 to 2% by weight of the moisturizing agent may be mixed as necessary. The fragrance may provide a user with a fragrant odor when applying the nail polish to the nail, and the moisturizing agent improves the smoothness of the prepared nail polish to facilitate brushing.

The nail polish of the water-dispersed polyurethane resin composition according to the embodiment of the present invention is easily applied to the nail or the imitation nail when using a brush, and is formed into a coating film (coating) once or twice to form a smooth, uniform and glossy coating film. .

Experiments have shown that a coating film is formed with a uniform thickness without leaving any brushing traces when applied on the nail using a brush.

Claims (5)

In the composition of the aqueous nail lacquer, the viscosity of the aqueous nail lacquer is characterized in that the viscosity measured at room temperature by adjusting the amount of any one selected from a thickener or water to a water-dispersible polyurethane resin using a polycarbonate polyol Composition. The aqueous nail lacquer composition according to claim 1, wherein the polycarbonate polyol is 15 to 40% by weight based on the total weight of the aqueous nail lacquer. In the aqueous nail lacquer composition, 80 to 87% by weight of the water-dispersed polyurethane resin using a polycarbonate polyol of 30 to 40% by weight, 0.0 to 1% by weight of thickener, and 10 to 20% by weight of water are mixed and measured at room temperature. A composition of an aqueous nail lacquer, wherein one viscosity is 2-3 poises. The aqueous nail lacquer composition according to claim 3, further comprising 1 to 15% by weight of at least one additive selected from the group consisting of pigments (dyes) and fragrances. According to claim 4, wherein the water-dispersed polyurethane resin is 4-8% by weight of IPDI (Isophorone diisocyanate), 20-30% by weight of polycarbonate diol, 2-4% by weight of carboxyl diol, 2-4% by weight of triethylamine (TEA) , Aqueous nail lacquer composition, characterized in that the amount of the remaining material after the water is evaporated by mixing 60 to 70% by weight of the composition to 30 to 40% by weight relative to the total weight.