JP3513868B2 - Oily solid cosmetics - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oily solid cosmetic composition having excellent gloss, usability, finish, makeup retention and high temperature stability of a cosmetic film.

[0002]

2. Description of the Related Art Conventionally, oily solid cosmetics such as lipsticks, eye shadows, eye creams, etc. are difficult to satisfy at the same time with good gloss and makeup retention, usability and high temperature stability of the system. If you want to give gloss, glyceride,
This has been dealt with by blending a liquid oil such as an ester type, but with this method, the makeup lasts poorly, and the surface of the cosmetics tends to become sweaty (so-called "perspiration") at high temperatures. However, the lipstick had a drawback that it easily causes bleeding.

[0003]

Therefore, it has been desired to develop an oily solid cosmetic which has good luster, usability, and finish, and has makeup retention and high temperature stability of the system at the same time.

[0004]

Under these circumstances, the inventors of the present invention have conducted diligent research and as a result, have found that the polyoxypropylene alkyl ether represented by the chemical formula 2 and the IOB value are 0.2.
It was found that the oily solid cosmetic composition containing the above liquid oil is excellent in luster, usability, finish, makeup retention, and high-temperature stability of the system, and completed the present invention.

[0005]

Polyoxypropylene alkyl ethers used in the present invention DETAILED DESCRIPTION OF THE INVENTION is not particularly limited as long as liquid or semisolid viscous at normal temperature represented by the chemical formula of the following Chemical Formula 2, Examples thereof include polyoxypropylene cetyl ether, polyoxypropylene butyl ether, and polyoxypropylene lauryl ether. Commercially available products include Unilube MB370 and MB70.
0 (Nippon Yushi) and the like.

[0006]

[Chemical 2]

(In the formula, R is an alkyl group having 1 to 15 carbon atoms, and n is an integer of 15 to 75.)

These polyoxypropylene alkyl ethers may be used either individually or in combination of two or more as required. The polyoxypropylene alkyl ether of the present invention is contained in the oily solid cosmetic of the present invention in an amount of 1 to 20% by weight.
(Hereinafter, simply indicated by "%"). Within this range, particularly good luster and makeup retention and high temperature stability can be obtained.

The IOB value used in the present invention is 0.2.
Examples of the above liquid oils include diglyceryl triisostearate, glyceryl trioctanoate, glyceryl tri-2-ethylhexanoate, propylene glycol dicaprate, oleyl alcohol, castor oil, and the like, or one or two as needed. The above can be used.

Further, in the oily solid cosmetic of the present invention, the above polyoxypropylene alkyl ether and IO
The blending ratio with liquid oil with a B value of 0.2 or more is 1/80 to 1 /
Within the range of 1, gloss, usability, finish, makeup retention,
High temperature stability is remarkable, and it is more preferable.

In addition to the above components, the oily solid cosmetic of the present invention contains an oily base for preparing the oily solid cosmetic. The oily base is usually used solid, semi-solid and liquid oils and the like, without particular limitation, animal oils, vegetable oils, mineral oils, synthetic oils regardless of hydrocarbons, waxes, esters,
Examples thereof include fatty acids, higher alcohols, silicone oils, fluorine-based oils, surfactants and the like. For example, polybutene, petrolatum, paraffin wax, ceresin wax, microcrystalline wax, synthetic hydrocarbon wax, owl, beeswax, carnauba wax, candelilla wax, dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane,
A dimethylpolysiloxane polymer having a three-dimensional cross-linking structure can be used, and one or two or more kinds are used as necessary and are appropriately selected depending on the product form.

In addition to the polyoxypropylene alkyl ether, the liquid oil having an IOB value of 0.2 or more, and the above-mentioned oily base, the oily solid cosmetic composition of the present invention contains, in a range that does not impair the effects of the present invention, Powders, pigments, antioxidants, polymer compounds, fragrances, preservatives, ultraviolet absorbers, moisturizers, cosmetic ingredients and the like commonly used in cosmetics can be added.

The oily solid cosmetic composition of the present invention is not particularly limited in use, but is preferably applied to the skin such as lipsticks, eye shadows and eye creams. The oily solid cosmetic composition of the present invention is more preferable if it is a system substantially containing no water because the effect is remarkably exhibited.

[0014]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. Examples 1-2 and Comparative Examples 1-3 <stick type lipstick>

[0015]

[Table 1]

(Production method) Components (1) to (9) are added at 110 ° C
After heating and melting at 120 ° C., (10) was added and mixed uniformly, poured into a mold for molding, and cooled and solidified to produce a lipstick.

Regarding Examples 1 and 2 and Comparative Examples 1 to 3, gloss of the cosmetic film, usability (lightness of spread), finish (uniformity of the cosmetic film), durability of makeup (diffusiveness of bleeding, retention of color) Goodness, resistance to color transfer), and high temperature stability of the system were evaluated. The results are also shown in Table 1. (Test method and evaluation method) a) Luster of cosmetic film Each sample was applied to the lips, and the gloss of the cosmetic film was visually evaluated. b) Lightness of spread (usability) The lightness of spread when each sample was applied to the lips was evaluated. c) Uniformity of cosmetic film (finish) Each sample was applied to the lips to evaluate the uniformity of the cosmetic film. d) Blurring resistance (makeup lasting) Each sample was applied to the lips, and the panel was allowed to carry out a normal life, and the bleeding resistance after 2 hours was evaluated. e) Good color retention (holding makeup) Each sample was applied to the lips, and the panel was made to have a normal life, and the color retention after half a day was evaluated. f) Difficulty in color transfer (makeup lasting) Each sample was applied to the lips, and the panel was made to have a normal life. After 2 hours, the lips were held down with tissue paper to evaluate the difficulty of color transfer of the lipstick. did. g) High temperature stability of system After each sample was left in a constant temperature bath at 50 ° C. for 1 hour, the perspiration state of the sample surface was visually evaluated.

For each evaluation item, the following 7-level (0-6) absolute evaluation was performed by a sensory test panel of 10 people,
Further, the average score was evaluated by dividing it into 4 grades. (1) Absolute evaluation 6: Very good 5: Good 4: Fair 3: Fair 2: Poor 1: Bad 0: Very bad (2) 4-point rating 5 points or more: ◎ 4 points or more and less than 5 points: ○ 3 points or more and less than 4 points: △ Less than 3 points: ×

As is clear from the results shown in Table 1, the lipstick of the present invention is superior to the lipsticks of the Comparative Examples in makeup retention and high temperature stability, and is excellent in gloss, usability and finish of the cosmetic film. It was a thing.

[0020]   Example 3: Plate-flushing type lipstick (Component) (%) 1. Microcrystalline wax 5.0 2. Polyethylene wax 5.0 3. Diglyceryl triisostearate 39.49 4. Polybutene 30.0 5. Polyoxypropylene lauryl ether 15.0 6. Pigment 5.0 7. Moisturizer 0.5 8. Fragrance 0.01

(Production method) Components 1 to 5 are added at 110 ° C to 120 ° C.
After heating, the mixture was added with 6 to 8 and mixed, poured into a gold plate, cooled and solidified to obtain a plate poured type lipstick. The dish-flushing type lipstick of the present invention was an excellent one that could simultaneously satisfy the gloss, usability, finish, makeup retention and high-temperature stability of the system.

Example 4: Stick-shaped eye shadow (Component) (%) 1. Microcrystalline Wax 8.0 2. Vaseline 7.0 3. Liquid paraffin 10.0 4. Sorbitan sesquioleate 1.0 5. Polyoxypropylene butyl ether 2.0 6. Castor oil 60.8 7. Perfluoropolyether 3.0 8. Mica (hydrophobic treatment *) 3.0 9. Mica titanium (hydrophobic treatment *) 2.0 10. Red No. 202 (hydrophobic treatment *) 1.0 11. Ultramarine blue (hydrophobic treatment *) 2.0 12. Moisturizer 0.1 13. Perfume 0.1 * Methyl hydrogen polysiloxane treatment

(Production method) After components 1 to 6 are heated and dissolved, 7
~ 13 were added and mixed, poured into a feeding container, and cooled and solidified to obtain a stick-shaped eye shadow. The stick-shaped eye shadow of the present invention was excellent in gloss of the cosmetic film, usability, finish, makeup retention, and high-temperature stability of the system.

[0024]

EFFECT OF THE INVENTION The oily solid cosmetic composition of the present invention is a cosmetic composition in which the gloss of the cosmetic film, the feeling of use and the finish are good, and the makeup lasts and the system is stable at high temperatures.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI A61K 7/48 A61K 7/48 (56) References JP-A-8-143420 (JP, A) JP-A-8-12524 (JP , A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (3)

(57) [Claims] [Claim 1] following equation of the general formula: ## STR1 ## (In the formula, R is an alkyl group having 1 to 15 carbon atoms, and n is 15 to
An integer of 75. ) Polyoxypropylene Alky represented by
Distribution of ether and liquid oil with an IOB value of 0.2 or more
Combined oily solid cosmetics. Wherein oily claim 1 Symbol placement amount of polyoxypropylene alkyl ether is from 1 to 20 wt% solid cosmetic. 3. The compounding ratio of polyoxypropylene alkyl ether and liquid oil having an IOB value of 0.2 or more is 1 /.
It is 80-1 / 1, The oily solid cosmetics of Claim 1 or Claim 2 characterized by the above-mentioned.