Oily solid cosmetic

[0065] Example

[0066] Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited to these Examples. In addition, unless otherwise specified, the compounding quantity in a following example etc. shows mass %.

[0067] Oil-based solid cosmetics were prepared by conventional methods according to the recipes described in Table 1 below, and evaluated according to the following criteria.

[0068] (melting sensation when applied)

[0069] Using the prepared oil-based solid cosmetics, 10 professionals evaluated the melting sensation when applied. The evaluation criteria are as follows.

[0070]

[0071] 5 points: very good

[0072] 4 points: good

[0073] 3 points: ordinary

[0074] 2 points: Bad

[0075] 1 point: very bad

[0076]

[0077] A+: average score of 4.5 or more

[0078] A: The average score is above 3.5 and less than 4.5

[0079] B: The average score is above 2.5 and less than 3.5

[0080] C: The average score is less than 2.5 points

[0081] (ease of application)

[0082] Ease of application (ease of blending) was evaluated by 10 professionals using the prepared oily solid cosmetic as a blush. The evaluation criteria are as follows.

[0083]

[0084] 5 points: very good

[0085] 4 points: good

[0086] 3 points: ordinary

[0087] 2 points: Bad

[0088] 1 point: very bad

[0089]

[0090] A+: average score of 4.5 or more

[0091] A: The average score is above 3.5 and less than 4.5

[0092] B: The average score is above 2.5 and less than 3.5

[0093] C: The average score is less than 2.5 points

[0094] (Exudation Stability)

[0095] The prepared oil-based solid cosmetic was stored at 50°C for 1 week, then taken out at 25°C, and it was confirmed whether oil droplets could be visually observed on the surface of the sufficiently cooled sample, and the exudation stability was evaluated according to the following criteria.

[0096] A: no leakage

[0097] B: Slight exudation is observed

[0098] C: Exudation was observed

[0099] D: Excessive exudation is observed

[0100] The formulation and evaluation results are shown in Table 1. In addition, the commercially available product name of the main substance among the components shown in a table|surface is shown below.

[0101] Polyethylene wax-microcrystalline wax: PA wax (a blend of polyethylene wax and microcrystalline wax (manufactured by Nikko Rika)

[0102] Sugar wax: Shuga-works A-10E (sucrose mixed fatty acid esters of stearic acid, palmitic acid, and acetic acid) (manufactured by Daiichi Kogyo Pharmaceutical Co., Ltd.)

[0103] Surface treated mica: Silicone treated mica, particle size 2.4~2.9μm

[0104] Silica: porous silica, particle size 5μm, oil absorption 67.4ml/100g

[0105] Silica dimethyl silylate: AEROSIL R972, particle size 0.016 μm (manufactured by Nippon Aerosil Corporation)

[0106] [Table 1]

[0107]

[0108] As shown in Table 1, the types of (B) low-melting point waxes in Examples 1 and 2 are different, and the types of powders in Example 1 are changed in Example 3, but they all have a feeling of use that melts, and are easy to spread (easy to faint) open), and excellent bleeding stability. Examples 4, 5 and Comparative Example 1 changed the ratio of (B) low melting point wax to the total amount of wax, and (C) powder relative to (B) the mass ratio of (B) low melting point wax was less than 0.7 in Comparative Example 1. Exudation stability. In addition, Examples 6 to 8 and Comparative Example 2 were examined by changing the amount of (C) powder, and in Comparative Example 2 in which the ratio of (B) low-melting point wax to the total amount of wax was large, (C) powder decreased, and the result Exudation stability could not be obtained.

[0109] (prescription example)

[0110] Hereinafter, formulation examples of the cosmetic of the present invention are given. The present invention is not limited in any way by this prescription example. In addition, the compounding quantity is represented by the mass % with respect to the whole product whole quantity.

[0111] Prescription example 1: Oily solid cosmetics

[0112]

[0113] The oil-based solid cosmetic of formulation example 1 is a formulation in which dyes are mixed, and the color durability can be further increased by mixing dyes.

[0114] Prescription example 2: Oily solid cosmetics

[0115]

[0116]

[0117] Formulation example 2 changed the kind of low-melting point wax, but it had the feeling of melting like the examples, it was easy to spread, and it was also excellent in oozing stability.

[0118] Prescription example 3: Oily solid cosmetics

[0119]

[0120] Formulation example 3 contains volatile oils, and the color durability can be further improved by compounding volatile oils.

[0121] Prescription example 4: Oily solid cosmetics

[0122]

[0123] Formulation Example 4 is a formulation in which polyethylene wax-microcrystalline wax is changed to carnauba wax, but in this case, as in the examples, it has a melting feeling in use, is easy to spread, and is excellent in oozing stability. Can further make the color last longer.