JP2009286765A - Oily solid cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oily solid cosmetic which shows no deterioration in filling and molding properties and shape retention property at production, is capable of suppressing sweating over time, can be easily picked up with a sponge, a puff, a chip or hand at use or can be easily picked up to be directly applied to the skin and imparts favorable glittering appearance to the skin after its application. <P>SOLUTION: The oily solid cosmetic includes 1-15 wt.% (palmitic acid/octanoic acid) dextrin, 1-15 wt.% solid oily component, 25-55 wt.% liquid oily component and 25-55 wt.% powder and contains 15-35 wt.% photoluminescent powder as the powder based on the total weight of the cosmetic. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to an oily solid cosmetic mainly composed of solid oil, liquid oil, and powder.

Conventionally, oily solid cosmetics are a type of dosage form that is widely used in makeup cosmetics such as foundations, eye shadows, teak colors, eye colors, eyebrows, face powders, foundation foundations, lipsticks and the like. Such oil-based solid cosmetics are composed of powders such as solid oil, liquid oil, and pigment as a skeleton.
Furthermore, dextrin fatty acid ester which is a lipophilic gelling agent is used from the viewpoint of shape retention at the time of production, filling moldability (Patent Document 1), and sweating suppression (Patent Document 2).

In oily cosmetics, basic functions such as filling moldability during production, shape retention, sweating with time, and usability are important.
In addition, in this usability, oily solid cosmetics can be taken on puff, sponge, chips or directly on the skin, and oily solid cosmetics can be directly applied to the skin. The ease of touching the skin is a particularly important function.

JP 2003-300807 A JP 2004-51500 A

However, the inventions described in Patent Document 1 and Patent Document 2 are still not fully satisfactory with respect to the functions described above.

As a result of diligent studies to solve the above-mentioned problems, the present invention has (palmitic acid / octanoic acid) dextrin 1 to 15% by weight, solid oil 1 to 15% by weight, and liquid oil 25 to 55% by weight. And an oily solid cosmetic containing 25 to 55% by weight of a powder, wherein the powder is a glittering powder containing 15 to 35% by weight in the total amount of the cosmetic. It does not impair the filling moldability and shape retention at the time of manufacture, and sweating with time can be suppressed, and when used, it can be easily taken with a sponge, puff, chip, oily solid cosmetic, or applied directly to the skin. It was easy to remove, and the glittering feeling after application to the skin was also good.

In oily solid cosmetics, filling moldability and shape retention at the time of production are not impaired, sweating with time is suppressed, and oily solid cosmetic sponges, puffs, chips, hands can be taken easily or directly on the skin Also good when applied to. Moreover, the glittering feeling after apply | coating to skin is also favorable.

The best mode for carrying out the present invention will be described in detail below.
In addition, the following% shows weight%, and only% is displayed hereafter.

In the present invention, an oily solid cosmetic comprising 1 to 15% (palmitic acid / octanoic acid) dextrin, 1 to 15% solid oil, 25 to 55% liquid oil, and 25 to 55% powder. In addition, it is an oily solid cosmetic containing 15 to 35% of a glittering powder as the powder in the total amount of the cosmetic.

The (palmitic acid / octanoic acid) dextrin used in the present invention is known as a lipophilic gelling agent in which palmitic acid and 2-ethylhexanoic acid are ester-bonded to dextrin. As a commercially available product, Leopard TT2 ( And Chiba Flour Mills).

In the present invention, the content of (palmitic acid / octanoic acid) dextrin may be 1 to 15%. If the content of (palmitic acid / octanoic acid) dextrin is less than 1%, it is not preferable in terms of filling moldability, sweating, and ease of removal. If it exceeds 15%, it is difficult to remove the cosmetic, which is not preferable.

The solid oil used in the present invention is solid at room temperature and may be any one that is usually used in cosmetics, and hydrocarbons, waxes, fats and oils, higher fatty acids, higher alcohols, higher fatty acids, fatty acid esters, etc. are used. it can. Specifically, hydrocarbons such as solid paraffin, ceresin, microcrystalline wax and polyethylene wax, oils and fats such as hardened oil and owl, beeswax, lanolin, candelilla wax, wax such as carnauba wax, stearic acid, myristic acid, behenic acid Higher fatty acids such as cetyl alcohol, stearyl alcohol, and behenyl alcohol; fatty acid esters such as cetyl palmitate and glyceryl trimyristate. At least one of these solid oils is selected.

The content of the solid oil used in the present invention is 1 to 15% in the total amount of the oily solid cosmetic. Preferably, it is 4 to 10%. If it is less than 1%, it is not preferable in terms of shape retention, sweating, and ease of removal. On the other hand, if it exceeds 15%, cosmetics are not easily taken off, which is not preferable.

The liquid oil used in the present invention may be a liquid oil at room temperature and commonly used in cosmetics, specifically, hydrocarbon oils such as liquid paraffin and squalane, diisostearyl malate, myristylate. Vegetable oils such as isopropyl, cetyl 2-ethylhexanoate, isopropyl palmitate, isostearyl palmitate, glyceryl tricapryl / capric acid, glyceryl tri-2-ethylhexanoate, olive oil, castor oil, macadamia nut oil, jojoba oil, etc. And liquid higher alcohols such as oleyl alcohol, octyldodecanol and isostearyl alcohol, liquid higher fatty acids such as isostearic acid and oleic acid, and silicone oils such as dimethylpolysiloxane and methylphenylpolysiloxane. At least one of these liquid oils is selected.

Content of the liquid oil used for this invention is 25 to 55%, Preferably, it is 30 to 50%. If it is less than 25%, it is not preferable from the viewpoint of filling moldability and ease of removal. On the other hand, if it exceeds 55%, it is not preferable in terms of shape retention, sweating, and ease of removal.

As the powder used in the present invention, glitter powders usually used in cosmetics, other inorganic powders, and organic powders are used. Specific examples of the glitter powders include bismuth oxychloride, titanium mica, titanium dioxide-coated bismuth oxychloride, iron oxide-coated mica, iron oxide-coated mica titanium, Bengala-coated mica titanium, organic pigment-coated mica titanium, fish scales Examples thereof include foil, iron oxide-coated synthetic phlogopite, titanium dioxide-coated glass flake, polyethylene terephthalate / aluminum / epoxy laminated powder, and polyethylene terephthalate / polyolefin laminated film powder.

In addition, other powders such as salmon, ultramarine, red iron oxide, yellow iron oxide, black iron oxide, titanium oxide, zinc oxide, cerium oxide, silicic anhydride, magnesium oxide, magnesium carbonate, mica, talc, kaolin, sericite, baiyun Examples thereof include inorganic powders such as mother, phlogopite, biotite, barium sulfate and bentonite, and organic powders such as polyacrylic resin, polyethylene resin, polyester resin, polypropylene resin, silicone resin, and cellulose resin. These powders are used alone or in combination of two or more.

Content of the powder used for this invention is 25 to 55% in oily solid cosmetics whole quantity.
Preferably, it is 30 to 50%. If it is less than 25%, it is not preferable in terms of filling moldability and sweating. On the other hand, if it exceeds 55%, the flow of the cosmetic into the container becomes poor, which is not preferable from the viewpoint of filling moldability.
In this powder, the glittering powder contains 15 to 35% in the total amount of the oily solid cosmetic.

Furthermore, as other components used in the present invention, preservatives, antioxidants, ultraviolet absorbers, drugs, fragrances and the like that are usually used in cosmetics can be appropriately blended as optional components.

These arbitrary components can be mix | blended in the range which does not impair an effect combining 1 type (s) or 2 or more types.

In the method for producing an oily solid cosmetic according to the present invention, for example, (palmitic acid / octanoic acid) dextrin is dispersed in a liquid oil and then dissolved by heating. After dissolution, a solid oil is added, heated and dissolved, and mixed and stirred. Further, there may be mentioned a method in which a powder containing glittering powder is added and sufficiently uniformly stirred and mixed with a disper, then filled into a container and cooled and molded.

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereby.

Prior to Examples, an evaluation method for each evaluation item employed in each Example will be described.

[Filling moldability]
Although the sample was poured into a mold and cooled and molded, uneven filling and mixing of bubbles were visually observed. From those having good filling moldability, those in which uneven filling and large amount of air bubbles were generated were evaluated on the basis of four grades of ◎, ○, Δ, and ×.

[Shape retention]
The sample was allowed to stand vertically at 40 ° C. for 1 week, and then left at room temperature for 2 hours to observe the shape. Samples having no problem in the shape of the sample and having a surface drooping or not retaining the shape were evaluated in four stages of ◎, ○, Δ, and ×.

[Sweating]
The sample was allowed to stand at 40 ° C. for 1 week and then allowed to stand at room temperature for 2 hours to observe the cosmetic surface. Samples with no sweating or sweating traces on the sample surface and those with sweating traces or surface shine were evaluated in four grades: ◎, ○, Δ, and ×.

[Ease of removal]
Twenty panelists evaluated the ease of taking a sample when it was picked up in the following four stages.
◎ ························································································································································· 10 Less than 1 person answered good

[Sparkle feeling]
Twenty panelists evaluated the glittering feeling of the sample when the sample was applied in the following four stages.
◎
・ ・ ・ ・ Responded that 18 or more are good ○
・ ・ ・ ・ Reply 14 or more and less than 18 responded △
························································································································ less than 10

An oily solid cosmetic (eye color) having the composition shown in Tables 1 to 3 was prepared, and this was used as an evaluation sample, and each evaluation item was determined based on the evaluation method. The results are also shown in Tables 1 to 3.

(Adjustment method)
In Examples 1 to 3 and Comparative Examples 1 to 3, the raw materials 1 to 10 were heated and dissolved at about 100 ° C. and mixed and stirred. Further, the raw materials 11 to 15 were added, mixed and stirred with a disper until uniform, and then poured into a container, cooled and molded to obtain an eye color.
Examples 4 to 5 and Comparative Examples 4 to 12 were similarly adjusted to obtain eye colors.

In addition, about the raw material of (Note 1)-(Note 4) which is a lipophilic gelling agent shown by Table 1-Table 3, the following commercial item was used, respectively.
(Note 1): Leopard TT2 manufactured by Chiba Flour Mills
(Note 2): Leopard KL2 manufactured by Chiba Flour Mills
(Note 3): Leopard MKL2 manufactured by Chiba Flour Mills
(Note 4): Leopard ISK2 manufactured by Chiba Flour Mills

As can be seen from Tables 1 to 3, Examples 1 to 5 according to the present invention were good in all evaluation items.

On the other hand, Comparative Examples 1 to 3 using a lipophilic gelling agent which is a polysaccharide fatty acid ester other than the present invention has a problem in ease of removal, and the content of (palmitic acid / octanoic acid) dextrin is In Comparative Examples 7 to 8 which are out of the range, there were problems in ease of taking, sweating and the like.

Moreover, in Comparative Examples 4 to 5 in which the solid oil content was outside the scope of the present invention and Comparative Examples 9 to 10 in which the liquid oil content was outside the scope of the present invention, there were problems in ease of removal and sweating.
Furthermore, in Comparative Examples 11 to 12 where the powder and the glittering powder are outside the scope of the present invention, there was a problem in the filling moldability.

Example 6 is shown below as a formulation example.

[Example 6] Face powder (formulation component) (wt%)
(1) (palmitic acid / octanoic acid) dextrin (Note 1) 10.0%
(2) Polyethylene wax
8.0%
(3) Microcrystalline wax
2.0%
(4) Neopentyl glycol diethylhexanoate
32.0%
(5) Diisostearyl malate
1.9%
(6) Sorbitan sesquiisostearate
1.0%
(7) Dimethicone
0.1%
(8) Sericite
7.9%
(9) Mica
10.0%
(10) Methyl methacrylate cross polymer
12.0%
(11) Iron oxide
0.1%
(12) Synthetic phlogopite
10.0%
(13) Mica titanium
5.0%
(Manufacturing method)
Disperse (palmitic acid / octanoic acid) dextrin in a liquid oil and dissolve by heating. After dissolution, a solid oil is added, heated and dissolved, and mixed and stirred. Further, a powder containing glittering powder was added and sufficiently uniformly stirred and mixed with a disper, then filled into a container, cooled and molded to obtain a face powder.

In Example 6 described above, filling moldability and shape retention during production are not impaired, sweating with time is suppressed, and it is possible to remove with a sponge or puff during use, or even when applied directly to the skin. However, it was a good oily solid cosmetic. Moreover, the glittering feeling after apply | coating to skin was also favorable.

Claims (2)

 (Palmitic acid / octanoic acid) An oily solid cosmetic containing 1 to 15% by weight of dextrin, 1 to 15% by weight of solid oil, 25 to 55% by weight of liquid oil, and 25 to 55% by weight of powder. An oily solid cosmetic containing 15 to 35% by weight of a glittering powder as the powder in the total amount of the cosmetic. The oily solid cosmetic according to claim 1, wherein the solid oil content is 4 to 10 wt%, the liquid oil content is 30 to 50 wt%, and the powder is 30 to 50 wt%.