JP4709705B2 - Oily cosmetics for lips - Google Patents

Description

  The present invention relates to an oily cosmetic for lips that is excellent in the feeling of use at the time of application, the finish, and the durability of the cosmetic effect.

  Conventionally, oily cosmetics such as lipsticks, lip glosses, eye shadows, and oily foundations have been difficult to achieve both usability and sustainability of makeup effects. It had the disadvantage that it adhered and easily bleeds. In order to eliminate these drawbacks, various studies have been made conventionally. For example, there are a high blend of solid components such as wax and a blend of volatile oils such as volatile silicone and light isoparaffin and a film forming agent such as silicone resin (Patent Document 1). The blended material has drawbacks such as heavy elongation and drying of the coated part, and the blended volatile oil and film forming agent loses its gloss over time, the coated part dries, and storage stability. There were drawbacks such as poor nature.

  In addition, there has been reported a cosmetic that blends a pigment whose surface is coated with a hydrophilic polymer such as agar to maintain the cosmetic lasting effect (Patent Document 2). This is an invention that utilizes the water absorption and adhesiveness of hydrophilic polymers. However, these cosmetics are excellent in usability and finish, but the sustainability of the cosmetic effect is not always satisfactory. For this reason, there has been a demand for the development of an oily cosmetic material that has excellent usability and finish at the time of application, and also has a long-lasting makeup effect.

JP 2000-501075 gazette JP 2001-233733 A

  Accordingly, an object of the present invention is to provide an oily cosmetic composition for lips that is excellent in use feeling and finish at the time of application, and further has a long-lasting cosmetic effect.

  In view of such circumstances, the present inventor has conducted intensive research, and as a result, by blending a specific polymer, an oily cosmetic excellent in the feeling of use at the time of application, the finish, and the sustainability of the cosmetic effect can be obtained. As a result, the present invention has been completed. That is, the present invention provides an oily cosmetic for lips characterized by containing a hydrophobized hydroxypropylmethylcellulose and an oily base material and substantially not containing water.

  The oily cosmetic composition for lips according to the present invention, when hydrophobized hydroxypropylmethylcellulose is blended in an unswelled state, absorbs moisture in the air or in the skin or lips after application and swells, and the cosmetic film thickens. As a result, the strength of the decorative film is increased, so that the effect of improving the sustainability of the cosmetic effect is obtained.

  Hereinafter, the present invention will be described in detail.

  Hydrophobized hydroxypropyl methylcellulose used in the present invention refers to all hydroxypropylmethylcellulose having a hydrophobic group introduced therein. For example, there is stearoxyhydroxypropylmethylcellulose which is a reaction product of stearyl glycidyl ether and hydroxypropylmethylcellulose. As for this, what is marketed as Sangelose 60 series and 90 series (made by Daido Kasei Kogyo Co., Ltd.) can be used. By introducing hydrophobic groups in this way, when water is absorbed and swells, interactions between the hydrophobic groups are also added, and a tougher cosmetic film can be formed and an oily group can be formed without causing aggregation or the like. It becomes possible to disperse in the material. In addition, these polymers are conventionally formulated as water-swelled products, but in the case of the oily cosmetics of the present invention, the moisture in the air and the moisture in the skin and lips are absorbed after application to enhance the strength of the cosmetic film. Is intended to improve the sustainability of the cosmetic effect, so it is desirable to blend in powder form.

  The blending amount of the hydrophobized hydroxypropylmethylcellulose in the present invention is preferably 0.1 to 10.0% by mass, more preferably 0.1 to 5.0% by mass in the total composition. If the blending amount is less than 0.1% by mass, the makeup-holding effect may not be sufficiently obtained. If the blending amount exceeds 10% by mass, the smoothness during application is reduced, which is not preferable in terms of usability. There is a case.

  The oily base material used in the present invention is not particularly limited as long as it is a component that is usually used in cosmetics. For example, paraffin wax, ceresin wax, microcrystalline wax, carnauba wax, candelilla wax, beeswax, Owl, gallow, polyethylene wax, ethylene propylene copolymer, hydrogenated castor oil, rosin acid pentaerythritol, solid oil such as stearic acid, behenic acid, cetyl alcohol, stearyl alcohol, petrolatum, phytosteryl oleate, dimerlinoleic acid hydrogenated castor Oil, semi-solid oil such as dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), dimethylpolysiloxane, cyclic silicone 4-6mer, methylphenylpolysiloxane, squaw Liquid paraffin, light liquid paraffin, light isoparaffin, α-olefin oligomer, liquid polyisobutylene, hydrogenated polyisobutene, isononyl isononanoate, isotridecyl isononanoate, hexyl laurate, isopropyl myristate, octyldodecyl myristate, isopropyl palmitate, Decyl oleate, hexyl decyl isostearate, octyldodecyl ricinoleate, octyl hydroxystearate, diisostearyl malate, dilauroyl glutamate (phytosteryl / octyldodecyl), glyceryl triisostearate, diglyceryl triisostearate, tri (capryl Capric acid) glyceryl, liquid lanolin, liquid diglyceride, olive oil, avocado oil, jojoba oil, macadamia oil Liquid oils such as castor oil and isostearyl alcohol are used.

  In addition, the oily base material used in the present invention requires an oily thickener such as dextrin fatty acid ester, inulin fatty acid ester, organically modified clay mineral, silica, and hydrophobized silica in order to adjust the feeling of use and improve the storage stability. It can be blended according to.

  Moreover, the product of the present invention can further improve the durability of the cosmetic effect by blending a pigment coated with a hydrophilic polymer.

The hydrophilic polymer for coating the pigment is not particularly limited as long as it is usually used in cosmetics. For example, gum arabic, tragacanth, arabinogalactan, locust bean gum (carob gum), guar gum, caraya gum, carrageenan , Pectin, agar, quince seed (quince), starch (rice, corn, potato, wheat), alge colloid, plant gum, etc., xanthan gum, dextran,
Microbial polymers such as succinoglucan and pullulan, animal polymers such as collagen, casein, albumin, deoxyribonucleic acid and their salts, starch polymers such as carboxymethyl starch and methylhydroxypropyl starch, methylcellulose, ethylcellulose and methyl Cellulose polymers such as hydroxypropylcellulose, carboxymethylcellulose, hydroxymethylcellulose, hydroxypropylcellulose, nitrocellulose, sodium cellulose sulfate, sodium carboxymethylcellulose, crystalline cellulose and cellulose powder, alginic acid polymers such as sodium alginate and propylene glycol alginate , Polyvinyl methyl ether, polyvinyl pyrrolidone, carboxy vinyl polymer, etc. Child, polyoxyethylene polymers such as polyethylene glycol, sodium polyacrylate, polyethyl acrylate, and acrylic polymers such as polyacrylic acid amide. Of these, agar, deoxyribonucleic acid and salts thereof which are particularly excellent in compatibility with cosmetics are preferably used in the present invention.

  As pigments to be coated with these hydrophilic polymers, if they are usually used in cosmetics, their shapes (spherical, rod-like, needle-like, plate-like, plate-like, scale-like, spindle-like, etc.) and particles Regardless of diameter (smoke, fine particles, pigment grade, etc.) and particle structure (porous, non-porous, etc.), any of them can be used. For example, red No. 104 aluminum lake, red No. 102 aluminum lake Red 226, Red 201, Red 202, Blue 1 Aluminum Lake, Yellow 4 Aluminum Lake, Yellow 5 Aluminum Lake, Yellow 203 Barium Lake and other pigments and lake dyes, nylon powder, silk powder, polyurethane Powder, silicone powder, polymethyl methacrylate powder, cellulose powder, silicone elastomer spherical powder, Polymers such as ethylene powder, yellow iron oxide, red iron oxide, black iron oxide, chromium oxide, carbon black, colored pigments such as ultramarine and bitumen, white pigments such as zinc oxide, titanium oxide and cerium oxide, talc, mica and sericite , Body pigments such as kaolin and plate-like barium sulfate, glitter pigments such as titanium mica, titanium oxide coated glass flakes, titanium oxide coated synthetic phlogopite, metals such as barium sulfate, calcium carbonate, magnesium carbonate, aluminum silicate, magnesium silicate Examples thereof include inorganic powders such as salt, silica, spherical silica, and alumina, bentonite, smectite, boron nitride, fine particle titanium oxide, and fine particle zinc oxide.

  In the oily cosmetic composition of the present invention, in addition to the above components, a colorant, extender pigment, polymer compound, humectant, surfactant, preservative generally used in cosmetics as long as the effects of the present invention are not impaired. Antioxidants, fragrances, ultraviolet absorbers, plant extracts and the like can be appropriately blended.

  Examples of the oily cosmetic of the present invention include lipstick, lip gloss, eye shadow, eyeliner, foundation, concealer, and gel-like lotion. The form of the product is not particularly limited, but can be applied to liquid, stick, cast solid, paste, gel, and the like.

  EXAMPLES Next, although an Example is given and this invention is demonstrated further in detail, this invention is not limited to these. In addition, the numerical value in a table | surface represents content (mass%). Prior to the examples, the evaluation methods employed in each example will be described.

[Use characteristic evaluation test method]
Twenty female panelists were asked to apply examples and comparative examples, and the following items were evaluated on a five-point scale from 5 points to 1 point. The higher the score, the better. And the average of the scores given by 20 people was taken as the score of the example or comparative example. (Rounded to one decimal place)
・ Feeling at the time of application ・ Finish ・ Continuous moist feeling after 3 hours ・ Continuous makeup effect after 3 hours

<Examples 1-4, Comparative Examples 1-5 (lipstick)>
(Production method)
Components 1 to 12 are uniformly dissolved and mixed, components 13 to 18 are added, and after kneading, re-dissolved. Ingredients 19-22 were added and dispersed uniformly and mixed, degassed, poured into a mold, cooled and solidified, and stored in a container to obtain a lipstick. The component composition and evaluation test results are shown in Table 1.

  As shown in Table 1, those of Examples 1 to 4 of the present invention are clearly more than those of Comparative Examples 1 to 5 in the feel and finish at the time of application, the durability of the moisturizing feeling, and the durability of the makeup effect. It was excellent.

<Example 5 (Liquid lip gloss)>
When the lip gloss of the prescription shown below was manufactured and evaluated for the evaluation items, all the items were satisfactory.

(Ingredient) (mass%)
1. Dextrin palmitate 5.0
2. Hydrogenated polyisobutene 40.0
3. Diisostearyl malate 10.0
4). Lauroyl glutamate di (phytosteryl octyldodecyl) 5.0
5. Squalane 5.0
6). 6. Octyl hydroxy stearate Residual amount Hydrophobized hydroxypropylmethylcellulose
(Daido Kasei Kogyo Co., Ltd. Saint-Gerose 90L) 2.0
8). Red No. 202 0.1
9. Mica titanium 1.5
10. (PET / polymethyl methacrylate) laminate 1.0

(Production method)
Components 1 to 6 are uniformly dissolved and mixed, and components 7 and 8 are added and uniformly kneaded. Components 9 and 10 are added to the redissolved material and dispersed uniformly. After degassing, fill the bottle.

<Example 6 (oil-based eye shadow)>
When the oily eye shadow having the following formulation was produced and evaluated for the evaluation items, all the items were satisfactory.

(Ingredient) (mass%)
1. Synthetic hydrocarbon wax 3.0
2. Ceresin 2.0
3. Microcrystalline wax 3.0
4). Dimer linoleic acid di (phytosteryl
Isostearyl, cetyl, stearyl, behenyl) 5.0
5. Propylene glycol dicaprylate 10.0
6). Glyceryl triisostearate 20.0
7). 7. Tri (capryl / capric acid) glyceryl residual amount Hydrophobized hydroxypropylmethylcellulose
(Daido Kasei Kogyo Co., Ltd. Saint-Gerose 60L) 2.0
9. Silylated silica 1.0
10. Silk powder 3.0
11. Polyalkyl acrylate 3.0
12 Titanium oxide 4.0
13. Bengala 0.5
14 Yellow iron oxide 1.5
15. Deoxyribonucleic acid potassium salt-treated mica titanium 25.0

(Production method)
Components 1 to 7 are uniformly dissolved and mixed, and components 8 to 14 are added and kneaded uniformly. Component 15 is added to the redissolved material and dispersed uniformly. After deaeration, it is poured into a resin pot and solidified by cooling.

<Example 7 (oil-based foundation)>
When an oily foundation having the following formulation was produced and evaluated for the evaluation items, it was satisfactory in all items.

(Ingredient) (mass%)
1. Candelilla Row 2.0
2. Carnauba 1.5
3. Polyethylene powder 1.5
4). Liquid paraffin 2.0
5. Polyethylene glycol monostearate 0.5
6). Methyl polysiloxane (6cs) 4.0
7). Polyglyceryl monooleate 1.5
8). Octyldodecyl myristate 10.0
9. Isopropyl isostearate Residual amount 10. Preservative appropriate amount11. Hydrophobized hydroxypropylmethylcellulose
(Daido Kasei Kogyo Co., Ltd. Saint-Gerose 60L) 1.5
12 Fine particle titanium oxide 8.0
13. Polyalkyl acrylate 1.0
14 Agar-treated titanium oxide 25.0
15. Silicone treated bengara 1.2
16. Silicone-treated yellow iron oxide 7.0
17. Silicone-treated black iron oxide 0.3
18. Kaolin 2.0
19. Polymethylsilsesquioxane 0.5

(Production method)
Components 1 to 10 are dissolved and mixed, and components 11 to 19 previously mixed and pulverized are added, kneaded and degassed, then poured into a metal pan and cooled and solidified.

  As described above, the present invention can provide an oily cosmetic for lips that is excellent in the feeling of use at the time of application, the finish, and the durability of the cosmetic effect.

Claims (3)

An oily cosmetic for lips characterized by containing 0.1 to 10.0% by mass of a hydrophobized hydroxypropylmethylcellulose and an oily base material in the whole composition and substantially free of water. Lip oily cosmetics according to claim 1, characterized by containing a pigment coated with the hydrophilic polymer. The oily cosmetic for lips according to claim 2 , wherein the hydrophilic polymer is at least one selected from the group consisting of agar, deoxyribonucleic acid and salts thereof.