JP2007045711A - Stick cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a stick cosmetic that smoothes touch in use of the skin and lips in using a stick cosmetic formulated with solid wax being a conventional problem, has excellent usability such as spread, compatibility, etc., in application and has excellent moldability. <P>SOLUTION: The stick cosmetic comprises (A) 0.1-20.0 wt.% of a low-melting paraffin having 30-50°C melting point and (B) 3.0-50.0 wt.% of a wax component having 60-120°C melting point. The total of the component (A) and the component (B) is 3.1-50.0 wt.% based on the whole components of the stick cosmetic. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a stick cosmetic, and more particularly to a stick cosmetic that has a smooth and good hardness on the skin and lips and is excellent in usability and stick moldability.

Conventionally, stick cosmetics contain solid waxes such as ceresin wax, polyethylene wax, paraffin wax, and candelilla wax as a base material for maintaining the stick shape. However, stick cosmetics formulated with such a solid wax, when used, feel the hardness of the stick cosmetic when it comes into contact with the skin and lips, and the spread and smoothness when applied. There was a problem that the feeling of use was impaired.

Therefore, in order to improve the above-mentioned feeling of use, it is possible to adjust the content of the solid wax, to contain microcrystalline wax, beeswax, other solid wax, or to mix powder coated with a specific silicone, etc. Although it has been studied, it has not yet been sufficiently satisfactory in use feeling. In addition, there is nothing on the market that is sufficiently satisfactory in terms of formability as well as the feel of use.
Japanese Patent No. 2805218 Japanese Patent No. 3588686 JP 2002-179524 A

The problem to be solved by the present invention is to smooth the feeling of use on the skin and lips when using a stick cosmetic compounded with a solid wax, which is a conventional problem, and has excellent usability such as spreading and familiarity during application, Furthermore, it is providing the stick cosmetics excellent in a moldability.

As a result of intensive studies to achieve the above object, the present inventor has a constant amount of a low melting point paraffin having a melting point of 30 to 50 ° C. and a wax component having a melting point of 60 to 120 ° C. The present inventors have found that a stick cosmetic material that is remarkably excellent in use feeling on the skin and lips, is excellent in usability, and is excellent in moldability can be obtained.

That is, the present invention comprises (A) a low melting point paraffin having a melting point of 30 to 50 ° C. and (B) a wax component having a melting point of 60 to 120 ° C., and the blending amount of (A) is 0.1 to 20.0. The blending amount of (B) is 3.0 to 50.0% by weight and the total of component (A) and component (B) is 3.1 to 50.0% by weight. To provide stick cosmetics.

In addition, in this invention, solid refers to the state which is normal temperature (15-25 degreeC), a normal pressure, and does not have fluidity | liquidity.

Since the present invention is excellent in use feeling at the time of application and usability in use, and further excellent in stick moldability, it is possible to provide an excellent stick cosmetic.

Hereinafter, the present invention will be described in detail. The low melting point paraffin having a melting point of 30 to 50 ° C. which can be used in the present invention is mainly composed of a mixture of C _{16 to} C ₄₀ normal paraffin, or a mixture of the mixture with isoparaffin and naphthene. A low-melting paraffin made of paraffin and isoparaffin is preferable, and a low-melting paraffin having a weight ratio of normal paraffin to isoparaffin of 20:80 to 70:30 is particularly preferable.

The blending amount of the low melting point paraffin having a melting point of 30 to 50 ° C. as the component (A) that can be used in the stick cosmetic of the present invention is 0.1 to 20.0% by weight in the total composition of the stick cosmetic. It is particularly preferable to blend in the range of 0.5 to 5.0% by weight. When the blending amount is less than 0.1% by weight, the effect of satisfying the feeling of use at the time of application is insufficient, and the effect of moldability is also insufficient. And when 20.0 weight% or more is mix | blended, basic usability, such as the spreading | diffusion at the time of application | coating and the gloss after application | coating, will be impaired. As the low melting point paraffin having a melting point of 30 to 50 ° C., PRAFFFIN
WAX 115, EMW-0003 (all manufactured by Nippon Seiki Co., Ltd.) and the like can be mentioned.

  The solid wax having a melting point of 60 to 120 ° C., which is the component (B) that can be used in the stick cosmetic of the present invention, is not particularly limited as long as it is a solid wax that meets the above conditions. Ceresin wax, polyethylene Examples thereof include wax, paraffin wax, candelilla wax, jojoba wax, and carnauba wax.

(B) As for the compounding quantity of the solid wax whose melting | fusing point is 60-120 degreeC which is a component, 3.0-50.0 weight% in stick cosmetics whole composition is preferable, Especially 5.0-25.0 weight% It is preferable to mix in the range. Specific examples of the commercially available solid wax include ceresin wax 810 (manufactured by Nikko Rika Co., Ltd.) and ceresin wax (manufactured by Niponix Co., Ltd.), and polyethylene wax as polywax 500 or 655 (BARECO). Co., Ltd.), Uniwax (manufactured by Nippon Oil Co., Ltd.), paraffin wax, paraffin wax 155 or 150 (manufactured by Nippon Seiki Co., Ltd.), and candelilla wax as refined candelilla wax (manufactured by Celerica NODA, Inc. ), Refined candelilla wax SR-2 (manufactured by Mitsuba Trading Co., Ltd.), jojoba wax as FLORAESTERS-60 or 70 (manufactured by FLORATECH), and carnauba wax as refined carnauba wax No. 1 (manufactured by Celalica NODA).

  And in the stick cosmetic of the present invention, the blending amount of the low melting point paraffin having the melting point of 30 to 50 ° C. as the component (A) and the solid wax having the melting point of 60 to 120 ° C. as the component (B) is the total amount. However, 3.1 to 50.0% by weight in the total composition of the stick cosmetic is preferable, and it is particularly preferable to add in the range of 5.5 to 30.0% by weight.

  In addition to the above essential components, the stick cosmetics of the present invention include solid waxes, oily raw materials, surfactants, powders, UV absorbers other than those described above, if necessary, as long as the effects of the present invention are not impaired. An agent, a humectant, a polyhydric alcohol, a plant extract, an antioxidant, a medicinal component, a preservative, and the like can be blended, and the blending amount is not particularly limited as long as the effects of the present invention are not impaired.

  The oily raw material of the present invention may contain solid oil / semi-solid oil or liquid oil within the range not impairing the effects of the present invention for the purpose of improving usability. For example, in solid oil / semi-solid oil, petrolatum, stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid, oleic acid, 12-hydroxystearic acid, stearyl alcohol, cetyl alcohol, behenyl alcohol, high degree of polymerization dimethylpolysiloxane, Examples include alkoxy-modified polysiloxane, cross-linked organopolysiloxane, lanolin, and lanolin fatty acid isopropyl. Liquid oils include liquid paraffin, squalane, polyisobutylene, polybutene, olive oil, castor oil, jojoba oil, mink oil, macadamian nut oil, diisostearyl malate, polyglyceryl diisostearate, polyglyceryl triisostearate, neodioctanoate Pentyl glycol, cholesterol fatty acid ester, lauryl alcohol, oleyl alcohol, isostearyl alcohol, cetyl isooctanoate, low polymerization dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, polyether modified poly Siloxane, polyoxyalkylene / alkylmethylpolysiloxane / methylpolysiloxane copolymer, fluorine-modified polysiloxane, Fluoro decane, perfluorooctane, perfluoro polyether, lanolin acetate, lanolin alcohol, and the like.

  The surfactant may be any surfactant that is used for the purpose of improving the dispersibility of the powder and stabilizing the emulsion, and is generally used in cosmetics, and is a nonionic surfactant, an anionic surfactant, a cationic interface. Examples include activators and amphoteric surfactants.

The powder component blended in the stick cosmetic of the present invention has a spherical shape, a plate shape, a needle shape, a particle shape such as a fume shape, a fine particle, and a pigment grade, and a particle structure such as a porous material and a nonporous material. There is no particular limitation, and examples include inorganic powders, glitter powders, organic powders, pigment powders, metal powders, and composite powders. For example, white inorganic pigments such as titanium oxide, zinc oxide, cerium oxide, barium sulfate, iron oxide, carbon black, sintered titanium / titanium oxide, colored inorganic pigments such as chromium oxide, chromium hydroxide, bitumen, ultramarine blue, talc , Muscovite, phlogopite, saucite, biotite, synthetic mica, sericite (sericite), synthetic sericite, kaolin, silicon carbide, bentonite, smectite, anhydrous silicic acid, aluminum oxide, magnesium oxide, zirconium oxide, oxidation Antimony, diatomaceous earth, aluminum silicate, magnesium magnesium silicate, calcium silicate, barium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, hydroxyapatite, boron nitride and other white body powder, titanium dioxide coated mica, Titanium dioxide coated bismuth oxychloride, iron oxide Mother titanium, bituminized mica titanium, carmine-treated mica titanium, bismuth oxychloride, glittering powder such as fish scale foil, polyamide resin, polyethylene resin, polyacrylic resin, polyester resin, fluorine resin, cellulose resin Copolymer resins such as polystyrene resins and styrene-acrylic copolymer resins, organic polymer resin powders such as polypropylene resins, silicone resins and urethane resins, organic low molecular weight powders such as zinc stearate and N-acyl lysine, Natural organic powder such as starch, silk powder, cellulose powder, red 201, red 202, red 205, red 226, red 228, orange 203, orange 204, blue 404, yellow 401, etc. Organic pigment powder, red No. 3, red No. 104, red No. 106, orange No. 205, yellow No. 4, yellow 5 , Organic pigment powder such as zirconium, barium or aluminum lake such as green No. 3, blue No. 1 or metal powder such as aluminum powder, gold powder, silver powder, fine titanium oxide coated mica titanium, fine zinc oxide coated mica titanium, Examples include composite powders such as barium sulfate-coated mica titanium, titanium oxide-containing silicon dioxide, and zinc oxide-containing silicon dioxide. These powders can be used alone or in combination of two or more thereof. May be used. These powders may be one or two of fluorine compound, silicone compound, metal soap, lecithin, hydrogenated lecithin, collagen, hydrocarbon, higher fatty acid, higher alcohol, ester, wax, wax, surfactant and the like. Surface treatment may be performed using seeds or more. Further, examples of the ultraviolet absorber include benzophenone, PABA, cinnamic acid, salicylic acid, 4-tert-butyl-4′-methoxydibenzoylmethane, oxybenzone, and the like. A polysaccharide, collagen, elastin, keratin etc. are mentioned.

For the purpose of adjusting the hardness, oily gelling agents such as dextrin fatty acid ester, sucrose fatty acid ester, starch fatty acid ester, aluminum isostearate, calcium stearate and inulin stearate can be blended.

  Examples of the polyhydric alcohol include alcohols such as ethyl alcohol and isopropyl alcohol, glycols such as propylene glycol, 1,3-butylene glycol, dipropylene glycol, and polyethylene glycol, glycerols such as glycerin, diglycerin, and polyglycerin. Examples of plant extracts include aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender, and rose.

  Examples of the antioxidant include α-tocopherol and ascorbic acid. Examples of the medicinal component include vitamins, anti-inflammatory agents and herbal medicines. Examples of the antiseptic include paraoxybenzoic acid ester and phenoxyethanol.

  As a typical form of the stick cosmetic of the present invention, a form in which a stick-shaped cosmetic is filled in a container and fed out from the container is used. Examples of cosmetics that can easily exhibit the effects of the present invention include lipsticks, stick foundations, stick eye colors, wrinkle sticks, whitening sticks, stick concealers, and the like.

EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited by these. In addition, unless otherwise specified, the blending amount is indicated by weight%.

Table 1 shows the formulations and evaluation results of Examples 1 to 3 and Comparative Examples 1 to 5 for the lipstick.

(Manufacturing method)
A: Components 1 to 12 are charged into a heating and melting kettle and heated and dissolved at 90 to 100 ° C. B: Ingredients 13 and 14 are added to A, and the dispersion treatment is sufficiently performed with a roller mill. C: B is heated again, adjusted to 85-90 ° C, and 15 is added. D: After degassing C, cool and mold into a stick.

Table 2 shows the formulations and evaluation results of Examples 4 to 6 and Comparative Examples 6 to 10 for the lipstick.

(Manufacturing method)
A: Components 1 to 12 are charged into a heating and melting kettle and heated and dissolved at 90 to 100 ° C. B: Ingredients 13 to 16 are added to A, and the dispersion treatment is sufficiently performed with a roller mill. C: B is heated again, adjusted to 85 to 90 ° C., defoamed, cooled, and molded into a stick shape.

Table 3 shows the formulations and evaluation results of Example 7 and Comparative Examples 11 to 12 for the stick foundation.

(Manufacturing method)
A: Ingredients 1 to 10 are charged into a heating and melting kettle, and heated and dissolved at 90 to 100 ° C. B: Ingredients 12, 13, 16, and 17 are added to A, and a dispersion process is sufficiently performed by a roller mill. C: 11, 14, and 15 are added to B and heated again, adjusted to 85 to 90 ° C., defoamed, cooled, and molded into a stick shape.

Table 4 shows the formulations and evaluation results of Example 8 and Comparative Examples 13 to 14 for the stick eye color.

(Manufacturing method)
A: Ingredients 1 to 9 are put into a heating and melting kettle and heated and dissolved at 90 to 100 ° C. B: Components 11 to 14 are added to A, and the dispersion treatment is sufficiently performed with a roller mill. C: 10, 15, 16 added to B, heated again, adjusted to 85-90 ° C., defoamed, cooled, and molded into a stick.

Table 5 shows the formulations and evaluation results of Examples 9 to 10 and Comparative Example 15 for the white stick.

A: Ingredients 1 to 9 are put into a heating and melting kettle and heated and dissolved at 90 to 100 ° C. B: Components 10 to 15 are added to A, adjusted to 85 to 90 ° C., defoamed, and molded into a stick shape with a stick molding machine.

  About evaluation of an Example and a comparative example, judgment by sensory evaluation was performed using 10 expert panelists, and the feeling of use for “Smoothness at the time of application”, “Growth at the time of application”, and “Smoothness” was used. Evaluated.

As a criterion for sensory evaluation, each evaluation item was quantified by the following evaluation, and a five-step evaluation for checking the most applicable place was used. The average score of each result was taken and displayed in the table with the following symbols.
Very bad: 1, Bad: 2, Normal: 3, Good: 4, Very good: 5

◎: 4.5 or more, ○: 3.5 or more, less than 4.5, Δ2.5 or more, less than 3.5, ×: 1.5 or more, less than 2.5, XX: less than 1.5

  About evaluation of moldability, the moldability was evaluated using a stick molding machine (manufactured by Nanyo Co., Ltd.). A sample for evaluation and measurement is stored for 24 hours in a constant temperature room at 20 ° C. after being molded by a stick molding machine.

  As evaluation criteria for moldability, the bending strength of stick molded products was measured with a rheometer (manufactured by Fudo Kogyo Co., Ltd.), and the rate of variation was calculated from Formula 1 from each measured value and displayed in the table with the following symbols. .

◎: Less than 5%, ○: 5% or more, less than 10%, △: 10% or more, less than 20%, ×: 20% or more, less than 30%, XX: 30% or more

  As is apparent from the results of Tables 1 to 5, the stick cosmetic of the present invention not only excels in “smoothness at the time of application”, but also at the moment of application such as “spread during application” and “stickiness”. It is clear that it has an effect of being excellent in use feeling, use feeling during use, and stick moldability. This result proves the excellent effect of the stick cosmetic of the present invention.

Since the stick cosmetic of the present invention is excellent in use feeling at the time of application and use, and further excellent in moldability, it can be widely applied to cosmetics.

Claims (2)

(A) 0.1 to 20.0% by weight of a low melting point paraffin having a melting point of 30 to 50 ° C. and (B) 3.0 to 50.0% by weight of a wax component having a melting point of 60 to 120 ° C., and A stick cosmetic characterized in that the sum of component (A) and component (B) is 3.1 to 50.0% by weight. The stick cosmetic according to claim 1, wherein the component (B) is one or more selected from ceresin wax, polyethylene wax, paraffin wax, candelilla wax, jojoba wax and carnauba wax.