JPH01283210A - Production of multi-color solid powder cosmetic - Google Patents

Abstract

PURPOSE:To extremely readily obtain the title cosmetic showing external appearance of marble tone by heterogeneously blending plural muddy substances containing powder cosmetic bases having different color tones, packing into a container, drying and molding. CONSTITUTION:Powder cosmetic bases having different color tones are respectively dispersed into a solvent (e.g., alcohol, fluorinated hydrocarbon or ether) for blending to prepare plural muddy substances. The muddy substances are heterogeneously blended by a static mixer (preferably one having <=10 agitating elements), packed into cosmetic containers, dried and molded to give a beautiful multi-color solid powder cosmetic of marble tone. The external appearance of marble tone can be readily and variably controlled and products having the same marble tone can be mass produced.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for producing a multicolor solid powder cosmetic, and more particularly, a method for producing a multicolor solid powder cosmetic, which forms a marble-like cosmetic in a cosmetic container. The present invention relates to a method for producing solid powder cosmetics.

[Conventional technology]

Conventionally, a method for obtaining cosmetics having multiple color tones in a predetermined cosmetic container is to provide a partition in the container, fill each container with powder of a different color, and then remove the partition. It was common.

However, since this partitioning method is a complicated process, it has recently been possible to mix slurry-like materials consisting of powders with different color tones, binders, and solvents by gentle stirring and place them in a predetermined container without using partitions. A development report on a filling and molding method has been reported (Japanese Patent Application Laid-open No. 14709/1983).
.

[Problem to be solved by the invention]

However, with this method, it is extremely difficult to control stirring conditions, in other words, to obtain a heterogeneous mixture of slurry-like substances, and it is difficult to easily obtain a beautiful marble-like multicolored solid powder cosmetic. In addition to these drawbacks, the appearance of the marble-like product at the beginning and end of filling is different, making it impossible to mass-produce identical marble-like products.

Therefore, the inventor of the present invention has conducted various researches in order to solve these conventional problems, and has found that by using a static mixer, it is possible to obtain an excellent heterogeneous mixture very easily, and also to produce a marble-like mixture with excellent reproducibility. They discovered that it is possible to produce beautiful cosmetics and completed the present invention.

[Means to solve the problem]

That is, in the present invention, a plurality of types of slurry in which powdered cosmetic bases having different tones are respectively dispersed in a mixing solvent are mixed uniformly in a static mixer, and then filled into a cosmetic container. This is a method for producing a multicolored solid powder cosmetic, which is characterized by drying and molding.

The powder cosmetic base used in the present invention is not particularly limited, but examples include the following.

■Powder Inorganic pigments: talc, titanium oxide, kaolin.

mica, silicic acid, iron oxide, oxidation Zinc, iron mica titanium oxide, ultramarine blue, Mica titanium, Glitter-1 carbonate Calcium, bentonite, etc.

Organic pigment:? Liethylene, nylon, crystalline cellulose,
Metal soap, tar color, starch, Teflon.

Fish scale foil etc. In addition, these are processed It may be a pigment or a composite pigment.

■Oil agent Hydrocarbons: Fluid Q Laugh-in, Squalane.

Microcrystalline wax.

NoQ Rough-in Wax, Vaseline Fats and oils: Coconut oil, Japanese wax, castor oil, mink oil, olive oil Sea urchin wax, beeswax, lanolin, candelilla wax, carnauba wax Fatty acids: lauric acid, myristic acid, stearic acid, oleic acid , Isostearic acid alcohol: cetanol, stearyl alcohol, hexyl decanol ester: Isozolopyl myristate, trioctanoic acid glycerin Silicone: , etc.■ Other ingredients below may be added as appropriate 0 Moisturizing agent: Glycerin, 1,3-butylene glycol Polymer: gelatin, gum arabic, methylcellulose,
Broken vinyl pyrrolidone, ethyl cellulose Clay minerals: Sodium magnesium silicate, magnesium aluminum silicate Surfactants: Drugs: Ultraviolet absorbers, skin beautifying ingredients, preservatives Fragrances: General volatile solvents can be used as mixing solvents. For example, the following may be used.

Alcohol: Ethanol, Sorono Q/-fluorinated hydrocarbons, fluorocarbons, aromatic hydrocarbons: Benzene ketone: Acetone ether: Somethyl ether, diethyl ether Silicon: Cyclic? Resiloxane water: Aliphatic hydrocarbon: Light fluid iso, Q-roughin, etc. The blending ratio of the powder cosmetic base and the mixing solvent is preferably 1 for the former and 0.5 to 2 for the latter. still,
It is particularly preferable to select a powder cosmetic base (powder, oil, and other ingredients) that does not dissolve in the mixing solvent, since a homogeneous solid powder cosmetic can be obtained.

As shown in Fig. 1, the stirring section of the static mixer used in the present invention consists of two types of stirring parts each consisting of a short plate-shaped body twisted 180 degrees to the right and to the left.
11a and 11b are arranged alternately and consecutively at an angle of 90 degrees.

Therefore, this static mixer divides the flow into two parts every time it passes through the stirring element 11, and the stirring element is twisted alternately to the right and to the left. Therefore, the object is mixed by the action of reversing the flow and causing the flow to change from the center to the wall surface and from the wall surface to the center along the twist of the stirring element.

In the present invention, when the number of stirring elements in the static mixer is 10 or less, particularly good results are obtained in obtaining a non-uniform mixing effect, in other words, a marble-like pattern.

In addition, should the person pouring the slurry into the static mixer apply pressure?
It is preferable to use Nzo.

In the present invention, filling, drying, and molding into cosmetic containers are carried out by
Method of filling, then pressing, drying and molding; Method of filling, dry pressing and molding: Filling into a cosmetic container built into a mold.

The method of drying and molding etc. does not matter.

[Effect]

In the method of the present invention, a plurality of types of slurry are mixed non-uniformly using a static mixer, and as a result, the resulting solid powder cosmetic exhibits a beautiful marbled appearance.

〔Effect of the invention〕

As described above, according to the method of the present invention, a beautiful marble-like multicolored solid powder cosmetic can be obtained very easily. Moreover, in the present invention, the appearance of the marble-like appearance can be easily controlled in various ways, so reproducibility is excellent, and the same marble-like product can be mass-produced.

Furthermore, the method of the present invention can be widely applied to various solid powder cosmetics such as white powder, eye shadow, blusher, foundation, color crayon, medium plate type, stick type, etc. [Examples] Examples are given below. The present invention will now be further explained.

Example 1 Two types of slurry A obtained by the following formulation and manufacturing method were placed on each body part 2, 2b of the double-barreled deaf syringe 2 shown in Fig. 2.
and Bf, and a static mixer 1 in the spout part 21.
(Manufactured by Mercury Sashirai System Co., Ltd.: Inner diameter & 3 mm, stirring element length 5 mm/'r pieces x 1
)'t, and while operating the static mixer 1, the cosmetic container 3 (inner volume 2° x 25 x 4
The heterogeneous mixture of the slurry and B was poured into the container 3K under pressure through the 2 mmφ injection port provided on the back side of the container 3K. y
After performing pressure injection filling at 2 kg/tz2 at 4K, the surface of the cosmetic was subjected to low pressure Sores (10 kg/cru2) using a Sores hair tube made of urethane foam with 5 tons of water-absorbing paper interposed. Then, it was dried to volatilize the ethyl alcohol to obtain a solid Q powder eye shadow.

The obtained solid/e powder eyeshadow had a beautiful marble-like appearance.

◎ Prescription (parts by weight) (Formulation A) (Formulation B) (1) Mica 7 & 354a1 (2)
Mica titanium 10.0 -(3)
Oxide iron mica tita 7 20.0 (4)
Titanium oxide 1.0-(5) Red 226
No. α10.5 (6) Red Garla
zO(7) Yellow iron oxide
7.0 (8) Ultramarine 0.15 3.0 (9) Black iron oxide 6.0
α1 Zomethyl? Resiloxane 4.0 4.
0 residence υ fluid Q rough in zo 2.
.

a'a Suhwara 7 0.8 0.8
α3 Lipophilic surfactant 3.0 3.0α4
Fragrance 0.2 0.2 α9 Preservative 0.4 °°4ae
Ethanol 10α0 100.0 (purple) (dark green) ◎Production method (a) Above [11 to (9)] All mixed and pulverized.

(b) The above CLG~ (151t-dissolves uniformly.

Add the gold obtained in (b) to the material obtained in (a) and mix evenly.

(b) Add 1ei of the above to the material obtained in (c) and mix uniformly to obtain slurry A and slurry B, respectively.

Example 2 In Example 1, two types of slurry C and D obtained by the following formulation and manufacturing method were used as the slurry, and a static mixer equipped with three stirring elements was used.
Pressurization? A blusher was applied in the same manner as in Example 1, except that the press pressure was set to 15 kg/c'm2, a cosmetic container with an internal volume of 42 x 26 x 5 mm was used, and the press pressure was set to 15 kg/c'm2. Obtained.

The resulting blusher had a beautiful marble pattern.

◎ Prescription (parts by weight) (Prescription C (Prescription D) (1) Mica 73.0 63
．． 1 (2) Merck 5. o
io,.

(3) Iron mica titanium oxide 11.0 1a
O(4) Titanium oxide 0. ′
5 (5) Red No. 226 0.5 0.7
(6) Yellow No. 205 0l-(7) Ultramarine
-0,5 (8) Red Garla α7 -(9)
Zomethyl? Resiloxane 4.0 4-0
(10 flow, e Lahuia 2.0 2
．． 00υ Squalane 1・01・0(12
1 Lipophilic surfactant Z02.0 (13) Lecithin -〇・5α Preservative
0.4 α4αS fragrance α30,3 (L61 ethanol 100.0 1
00. Q (light red) (reddish brown) ◎Production method (a) All of the above (1) to (8) are mixed and pulverized.

(b) The haze from (9) above is uniformly dissolved.

(c) Add the material obtained in (b) to the material obtained in (a) and mix evenly.

(b) Add the above tti9'e to the material obtained in (c) and mix uniformly to obtain slurry C1.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of a static mixer stirring section, and FIG. 2 is a schematic view of an example of a device suitable for carrying out the present invention. Applicant: Kobayashi Kose Co., Ltd.□ Patent attorney: Nobu Ono f゛1”-'・1:“-・1, ・,shij Procedural amendment (voluntary) June 7, 1988

Claims (1)

[Claims] 1. Mix multiple types of slurry in which powdered cosmetic bases with different tones are dispersed in mixing solvents using a static mixer, then fill them into cosmetic containers and dry them. A method for producing a multicolor solid powder cosmetic, which comprises molding.