JP2011168552A - Manicure preparation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manicure preparation as an environment-corresponding type by using a biodegradable film-forming resin, and also excellent in applicability, glossiness and film strength. <P>SOLUTION: This manicure preparation is provided by blending a polylactic acid which is a natural plant-originated amorphous biodegradable polymer, expressed by chemical formula (1) [wherein, R<SB>1</SB>to R<SB>3</SB>are each a ≥1C saturated hydrocarbon group and may be the same or different; and (n) is an integer of ≥1] as a resin component. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an environment-friendly beauty nail material excellent in applicability.

  In general, the nail polish contains an organic solvent such as ethyl acetates, lactic acid esters and hydrogen oxide, nitrocellulose, a film-forming resin, a plasticizer, a colorant and the like. The ingredients that actually form a film as a nail polish are nitrocellulose and a film-forming resin. Nitrocellulose is a naturally-derived component derived from cellulose, but commonly used film-forming resins include acrylic resins, alkyd resins, toluenesulfone imide resins, and semi-natural product shoe-close resins. Synthetic polymers such as Specific examples of the film-forming resin include acrylic acid ester / methacrylic acid ester copolymers, phthalic acid alkyd resins, isophthalic acid alkyd resins, succinic acid alkyd resins, toluenesulfonamide / formaldehyde resins, toluene / sulfones. Examples thereof include amide / epoxy resins, sucrose benzoate, and sucrose acerate isobutyrate. Since these resins are synthetic polymer systems, they do not have biodegradability.

  In recent years, it has become important to use biodegradable materials in various industrial fields, and it is also desired to use biodegradable materials for beauty nails. However, in conventional nail polishes, nitrocellulose is a component derived from natural plants, but the film-forming resin blended with this nitrocellulose is a synthetic polymer, so it is not environmentally friendly. was there.

  The present invention has been made in view of the above-mentioned problems, is environmentally friendly using a biodegradable film-forming resin, has excellent coatability, excellent gloss, and excellent film strength. The purpose is to provide a beautiful nail material.

（式中、Ｒ_１，Ｒ_２，Ｒ_３は炭素数が１以上の飽和炭化水素基であり、同一でも、異なっていてもよい。ｎは１以上の整数である。） In order to achieve the above object, the beauty nail material according to the present invention comprises:
Polylactic acid, which is an amorphous biodegradable polymer compound derived from a natural plant represented by the following chemical formula (1), is blended as a resin component.

(In the formula, R ₁ , R ₂ , and R ₃ are saturated hydrocarbon groups having 1 or more carbon atoms, and may be the same or different. N is an integer of 1 or more.)

  According to the present invention, biodegradable polylactic acid, which is a natural plant-derived polymer compound, is used as the film-forming resin, so it is environmentally friendly, and has excellent coatability and gloss. A nail polish excellent in film strength can be obtained.

  Next, specific embodiments of the beauty nail material according to the present invention will be described.

  The biodegradable polylactic acid derived from natural plants used in the present invention is obtained mainly by polymerizing lactide purified from corn as a raw material. By combining optical isomers of this lactide, it is amorphous. In addition, it is possible to polymerize a polymer compound that is soluble in an organic solvent used in a nail polish. The glass transition point of this amorphous polylactic acid is preferably in the range of −10 ° C. to 50 ° C., depending on the combination ratio of optical isomers.

  Moreover, the polymerization degree of the polylactic acid used in the present invention is not particularly limited, but it is preferably a polymerization degree that gives an appropriate viscosity as a beauty nail material. Furthermore, the polylactic acid used in the present invention has biodegradability capable of being processed by aerobic decomposition and anaerobic decomposition. In addition, when the amorphous polylactic acid used in the present invention is added to the nail polish, it may be dissolved in advance in an appropriate organic solvent such as ethyl acetate, butyl acetate, methyl ethyl ketone, acetone or the like.

That is, the present invention comprises the following components (a) natural plant-derived biodegradable amorphous polylactic acid (the above chemical formula (1))
(B) Nitrocellulose (c) Organic pigment (d) Gelling agent (e) A nail polish characterized by containing a non-aromatic organic solvent is provided.

  The nitrocellulose of (b) shown here is not particularly limited as long as it is used in conventional nail polishes, and nitrified cotton H1 / 2, H1 / 4, H1 / 8, etc. are used. .

  Further, the organic pigment (c) is preferably kneaded in advance with the above-mentioned nitrified cotton (= nitrocellulose) and a plasticizer, for example, a citrate ester, etc., with three rolls. The colored pigment to be blended is not particularly limited as long as it is usually used in cosmetics. Titanium oxide, carbon black, chromium oxide, chromium hydroxide, bitumen, ultramarine blue, red iron oxide, yellow iron oxide Or inorganic colored pigments such as pearl pigments such as black iron oxide and titanium mica, organic colored pigments such as Red No. 226, Yellow No. 205 and Blue No. 404, and Red No. 201, Yellow No. 202, Blue No. 1, Yellow No. 4 and other lake pigments. These colored pigments may be subjected to various surface treatments such as various silicone treatments, alkylsilane treatments, alkyl titanate treatments, lauroyllysine treatments, perfluoroalkyl phosphate treatments, perfluoroalkylsilane treatments, silica treatments and the like. .

  The gelling agent (d) increases the viscosity of the nail preparation with a very small amount of addition, for example, montmorillonite group such as montmorillonite, smectite or hectorite, sodium silicic mica, sodium deniolite or Examples include synthetic mica such as lithium teniolite, clay minerals such as hectorite and bentonite, and anhydrous silicic acid.

Examples of the non-aromatic organic solvent (e) include butyl oxide, ethyl oxide, methyl ethyl ketone, acetone, n-butanol, isopropyl alcohol, and ethyl alcohol. In addition, for the purpose of improving film removability and restorability, etc., and improving the compatibility of the ingredients, oily ingredients are added. Activators, dyes, fragrances, water, etc. may be added. In the above blending, the appropriate amount of nitrocellulose is 0 to 15% by mass, and when the amount of nitrocellulose is 0% by mass, the colored pigment and the plasticizer are previously biodegradable derived from natural plants. It is preferable to knead with amorphous polylactic acid. On the other hand, the blending amount of the natural plant-derived biodegradable amorphous polylactic acid as the film-forming resin is suitably 1 to 40% by mass.
In addition to these, the beauty nail material of the present invention can be blended with components such as dyes and fragrances that can generally be incorporated into beauty nail materials.

The following method is mentioned as a manufacturing method of the beautiful nail material of this invention.
(1) First method: A commercially available nitrocellulose containing isopropanol is kneaded with a plasticizer such as a color pigment and a citrate ester with three hot rolls, and isopropanol is removed by evaporation to obtain a color nitrocellulose chip of each color. Prepare. These color nitrocellulose chips and the natural plant-derived amorphous biodegradable polylactic acid of the present invention are mixed and dissolved in an organic solvent such as acetate ester or hydrocarbon as a film-forming resin to be uniform. At the same time, bright pigment particles such as pearl pigments, dyes and fragrances may be mixed.
(2) Second method: A color polylactic acid chip is prepared by kneading the natural plant-derived amorphous biodegradable polylactic acid of the present invention in advance with a color pigment, a plasticizer, etc. using a biaxial extruder or a heating kneader. Keep it. This and nitrocellulose swollen with ethanol or the like are dissolved and mixed together with an organic solvent such as acetate. At the same time, large pigment particles such as pearl pigments, dyes and fragrances may be mixed.

  EXAMPLES Hereinafter, the beauty nail material according to the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

(Production Examples 1 to 4)
Using a three-heat roll machine, nitrified cotton H1 / 4 (isopropyl alcohol wet) and various color pigments were kneaded with the composition shown in Table 1 (unit: parts by mass) to prepare nitrified cotton color chips. In the prepared nitrified cotton color chip, several percent of isopropyl alcohol usually remains.

(Production Examples 5 to 8)
Using a biaxial extruder, using polylactic acid “Bio-Ecole BE-400” manufactured by Toyobo Co., Ltd. as a base resin, kneading with the composition shown in Table 2 (unit: parts by mass) to prepare polylactic acid color chips did. The processing temperature at this time was 150-200 degreeC.

(Examples 1 and 2)
As a lacquer thinner base solvent, a mixture of 33% by mass of n-butyl acetate, 33% by mass of ethyl acetate and 34% by mass of toluene is prepared in advance. 70% by mass of this lacquer thinner base and 30% by mass of the nitrified cotton color chip prepared in Production Examples 1 to 4 were dissolved and dispersed using a disper to prepare a color blend paste of each color. On the other hand, Benton gel paste was also prepared in advance with the following composition.
Toluene 35 parts n-Butyl acetate 26 parts Ethyl acetate 6.75 parts Isopropyl alcohol 8.5 parts Nitrated cotton H1 / 4 15 parts Benton 27 8 parts
0.75 parts camphor
100 copies

Moreover, the following paste was prepared as a dispersion base.
n-butyl acetate 23 parts toluene 17.7 parts nitrified cotton H1 / 4 14.4 parts acetyltriethyl citrate 4 parts camphor 1.2 parts n-butyl acetate 0.8 parts isopropyl alcohol 0.2 parts ethyl alcohol 1.7 Part Benton gel (above) 20 parts
17 parts of polylactic acid (BE-400) 40% ethyl acetate solution
100 copies

Using the above dispersion base, a color nail polish was prepared with the following composition.
(Example 1: Brown nail polish)
For 100 parts of dispersion base, 0.5 parts of nitrified cotton color chip prepared in Production Example 2, 0.61 part of nitrified cotton color chip prepared in Production Example 3, and nitrified cotton color prepared in Production Example 4 A color blend paste containing 0.5 part of each chip was uniformly mixed and dispersed with a disper.
(Example 2: Pink nail polish)
A color blend paste in which 0.2 parts of the nitrified cotton color chips prepared in Production Example 1 and 0.4 part of the nitrified cotton color chips prepared in Production Example 4 are mixed with 100 parts of the dispersion base in a disper. And uniformly dispersed.

(Examples 3 and 4)
Using the same Benton gel as in Examples 1 and 2, a dispersion base was prepared with the following composition.
n-butyl acetate 23 parts toluene 17.7 parts nitrified cotton H1 / 4 18.4 parts acetyltriethyl citrate 4 parts camphor 1.2 parts n-butyl acetate 0.8 parts isopropyl alcohol 0.2 parts ethyl alcohol 1.7 Part Benton gel (above) 20 parts
Polylactic acid (BE-400) 40% ethyl acetate solution 13 parts
100 copies

Using the above dispersion base, a color nail polish was prepared with the following composition.
(Example 3: Brown nail polish)
For 100 parts of dispersion base, 0.5 part of the nitrified cotton color chip prepared in Production Example 8, 0.61 part of the nitrified cotton color chip prepared in Production Example 6, and the nitrified cotton color prepared in Production Example 7 A color blend paste containing 0.5 part of each chip was uniformly mixed and dispersed with a disper.
(Example 4: Pink nail polish)
Disperse a color blend paste in which 0.2 part of the nitrified cotton color chip prepared in Manufacturing Example 5 and 0.4 part of the nitrified cotton color chip prepared in Manufacturing Example 7 were mixed with 100 parts of the dispersion base. Were mixed and dispersed uniformly.

(Comparative Examples 1 and 2)
A dispersion base was prepared with the following formulation. In addition, the thing similar to the thing of the said Example was used for the Benton gel.
n-butyl acetate 23.09 parts toluene 22.18 parts ethyl acetate 7.23 parts nitrified cotton H1 / 4 14.39 parts acetyltriethyl citrate 4 parts camphor 1.2 parts n-butyl acetate 0.8 parts isopropyl alcohol 0 225 parts ethyl alcohol 0.06 parts benzophenone-2 0.025 parts Benton gel (above) 20 parts
Alkyd resin 6.8 parts
100 copies

Using the above dispersion base, a color nail polish was prepared with the following composition.
(Comparative Example 1: Brown nail polish)
For 100 parts of dispersion base, 0.5 part of the nitrified cotton color chip prepared in Production Example 2, 0.61 part of the nitrified cotton color chip prepared in Production Example 3, and the nitrified cotton color prepared in Production Example 4 A color blend paste containing 0.5 part of each chip was uniformly mixed and dispersed with a disper.
(Comparative Example 2: Pink nail polish)
A color blend paste in which 0.2 parts of the nitrified cotton color chips prepared in Production Example 1 and 0.4 part of the nitrified cotton color chips prepared in Production Example 4 are mixed with 100 parts of the dispersion base in a disper. And uniformly dispersed.

  The color nail polish prepared in Examples 1 to 4 exhibited gloss, gloss, film strength, and color developability equivalent to those prepared in Comparative Examples 1 and 2. Comparative Examples 1 and 2 are not environmentally friendly, while Examples 1 to 4 contain polylactic acid that can be biodegraded by both aerobic and anaerobic decomposition methods. Therefore, it is a manicure that does not burden the environment.

  According to the present invention, a nail polish that is not only environmentally friendly, but also has excellent coatability and glossiness and excellent film strength can be obtained, and can be used as a cosmetic.

Claims (1)

A beauty nail material comprising polylactic acid, which is a natural plant-derived amorphous biodegradable polymer compound represented by the following chemical formula (1), as a resin component.

(In the formula, R ₁ , R ₂ , and R ₃ are saturated hydrocarbon groups having 1 or more carbon atoms, and may be the same or different. N is an integer of 1 or more.)