JP2010030969A - Pencil-like cosmetic and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pencil-like cosmetic which has excellent integrity, is not broken while in use, and has a flat core devided into two or more colored parts in the longitudinal direction and its manufacturing method. <P>SOLUTION: A solid oil (a) having a melting point of 70-105°C of 15-35 mass% is mixed with 5-35 mass% of a semi-solid or solid oil (b) having a melting point of 40-65°C. The mixture and two or more cosmetic materials with different colors are integrated into one body in the shape of a flat lead upon injection molding. The product is then heat-treated at 50-65°C. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pencil-shaped cosmetic and a method for producing the same, and more particularly to a pencil-shaped cosmetic and a method for producing the same, in which two or more colors are divided.

Conventionally, pencil-shaped cosmetics in which a core is formed by injection molding are known. In addition, although two or more cosmetics having different colors are used in an eyeliner or the like, there are problems in portability and operability. In addition, when two or more cosmetics with different colors are used properly, it may be possible to integrate different colored cores at both ends of the shaft, but the operability, design, and core feeding mechanism There was a problem with the complexity of the.
On the other hand, in Patent Document 1, a plurality of colored granules having a diameter of about 5 mm and a length of about 5 to 10 mm to be primary-molded are kneaded so as not to mix with each other to form a multicolored ball of a certain size, This multi-colored ball is put in a core molding machine and stretched to continuously form in the longitudinal direction to produce a pencil-shaped cosmetic with a multicolor blend. However, this method has a problem in that it is often inconvenient to use the color to be selected because the cosmetics are formed by mixing the colors in a lump.

JP 11-29439 A

  An object of the present invention is to provide a two-color or multi-color integrated pencil-shaped cosmetic material having a flat core with a narrow contact surface, excellent in the integrity of the entire core, and separated in the longitudinal direction, and a method for producing the same. It is to provide.

  As a result of diligent research, the present inventors have used a base material having a specific oil component, and have a heat treatment step in the manufacturing process, so that there is no breakage at the boundary of the color, and a multicolored flat core with excellent unity. It has been found that a pencil-like cosmetic is obtained.

  That is, the present invention comprises (a) 15 to 35% by mass of a solid oil having a melting point of 70 ° C. to 105 ° C., and (b) a semi-solid oil or a solid oil having a melting point of 40 to 65 ° C. of 5 to 35% by mass. In which the color is divided into two or more types in the longitudinal direction, which is a method for producing a pencil-shaped cosmetic material having a flat core shape, which includes the component (a) and the component (b) and has two different colors It is a method for producing a pencil-shaped cosmetic, characterized in that the above cosmetic base is integrated at the same time as injection molding to form a flat core and then heat-treated at 50 to 65 ° C.

  The present invention also includes (a) 15 to 35% by mass of a solid oil having a melting point of 70 ° C. to 105 ° C., and (b) a semi-solid oil or a solid oil having a melting point of 40 to 65 ° C. of 5 to 35% by mass. Is a flat-core pencil-shaped cosmetic characterized in that the color is divided into two or more colors in the longitudinal direction.

  Furthermore, the present invention is a cosmetic product characterized in that the above-mentioned flat-core pencil-shaped cosmetic is stored in a mechanical pencil-shaped storage container so that it can be fed out.

The pencil-shaped cosmetic of the present invention is a multicolor, flat-core pencil-shaped cosmetic that is not broken and has excellent integrity. Since this pencil-shaped cosmetic has a variety of long and divided color streaks, multicolor makeup can be made with a single makeup. In addition, since it has a flat core shape, it is possible to easily perform multi-color coating for makeup. Furthermore, since multi-color makeup can be performed with one pencil-shaped cosmetic, the effect of excellent portability is produced.
In addition, since the multi-colored cosmetic is a pencil shape or a mechanical pencil shape and has a flat core shape, an effect of being able to satisfactorily draw a multi-colored makeup on a thin portion such as a thin eyeliner or eyebrow is produced. .
According to the method for producing a pencil-shaped cosmetic material of the present invention, a multicolor, flat-core pencil-shaped cosmetic material that is not broken and has excellent integrity can be produced by a simple method.

The best mode of the present invention will be described below.
In the present invention, an oily component that does not melt during heat treatment described later and an oily component that melts are blended, and after intimate contact with high pressure in injection molding, further heat treatment is performed to melt a part of the wax and the entire core is integrated. In this way, a pencil-shaped cosmetic is constructed that has high adhesion strength and has excellent core integrity in a two-color or multi-color pencil with a flat core, and does not lack at the boundary between colors when used. Here, the flat core shape has a rectangular cross section, and the color tone is preferably separated in the short side direction.

First, (a) the solid oil component having a melting point of 70 ° C to 105 ° C will be described.
Examples of the solid oil having a melting point of 70 ° C. to 105 ° C. used in the present invention include, for example, hydrogenated castor oil, behenic acid, carnauba wax, candelilla wax, polyethylene wax, microcrystalline wax, polyethylene wax and microcrystalline wax. Examples thereof include mixed wax, ceresin wax, solid paraffin wax, rice bran wax, and tristearin. Among these, hydrogenated castor oil and behenic acid are particularly preferable.

  (A) The blending amount of the solid oil having a melting point of 70 ° C. to 105 ° C. is 15 to 35% by mass, preferably 20 to 30% by mass. When the blending amount of component (a) is less than 15% by mass or exceeds 35% by mass, the molded core is too soft or too hard, making it difficult to obtain the target core.

Next, (b) a semi-solid oil or a solid oil having a melting point of 40 ° C to 65 ° C will be described.
(B) As a semi-solid oil or solid oil having a melting point of 40 ° C. to 65 ° C., for example, mole, sucrose acetate stearate, dimer linoleic acid (phytosteryl / behenyl), beeswax, hydrogenated oil (such as hydrogenated palm oil), Examples thereof include macadamia nut oil fatty acid / polyglyceryl behenate, and among these, mole, dimer linoleic acid (phytosteryl / behenyl), and sucrose acetate stearate are particularly preferable.

  (B) The blending amount of the semi-solid oil or solid oil having a melting point of 40 ° C. to 65 ° C. is 5 to 35% by mass, preferably 10 to 30% by mass. When the blending amount of the component (b) is less than 5% by mass or exceeds 35% by mass, the integrity is insufficient or the core is easily deformed during heat treatment.

  In the present invention, in addition to the oil as the essential component, cetyl 2-ethylhexanoate, glyceryl triisostearate, neopentyl glycol dicaprate, isostearyl alcohol malate diester, trimethylolpropane triisooctanoate, isooctanoic acid Fluid oils such as triglyceride, pentaerythritol tetraisooctanoate, octyl palmitate, acetyl tributyl citrate, dimethylpolysiloxane (6 to 5000 cs), methylphenylpolysiloxane and the like can be used.

  In the present invention, a color material is blended in addition to the above essential components. The color material may be any color material that is usually used in pencil-shaped cosmetics, and may be in the form of powder or rake (a state in which oil is kneaded). It may be an inorganic pigment, an organic pigment, or a pearl agent.

  In the pencil-like cosmetic of the present invention, if necessary, in addition to the above components, pigments, moisturizers, preservatives, antioxidants, fragrances, drugs, solvents, etc. are qualitative and quantitative without impairing the effects of the present invention. It can be used under conditions.

  The pencil-shaped cosmetic of the present invention comprises (a) 15 to 35% by mass of a solid oil having a melting point of 70 ° C. to 105 ° C., and (b) a semi-solid oil or a solid oil having a melting point of 40 to 65 ° C. Two or more kinds of cosmetic bases containing 35% by mass and having different colors can be integrated at the same time as injection molding to form a flat core, and then heat-treated at 50 to 65 ° C.

Each of the two or more types of cosmetic bases can be produced by a conventionally known method. In the present invention, these two or more kinds of cosmetic bases are integrated at the same time when injection molding. Injection molding is usually performed between room temperature and 40 ° C. The joint surface of the cosmetic bases of different colors in the pencil-shaped cosmetic molded into a flat core shape is usually 0.7 to 2.0 mm.
Subsequently, it is preferable to heat-treat the cosmetic base integrated into a flat core shape at 50 to 65 ° C, preferably 57 to 62 ° C. When the heat treatment temperature is less than 50 ° C., the integration of the cosmetic bases of different colors may be insufficient, which may cause breakage or chipping during use. If the temperature exceeds 65 ° C., the core may become soft, so that the core may be deformed and its outline may collapse. The heat treatment time is preferably 3 to 4 hours. After heat treatment, cool slowly.

  The pencil-like cosmetics obtained as described above are made by combining the cosmetic bases of different colors firmly at their boundary surfaces and are not broken even after repeated use.

The pencil-shaped cosmetic of the present invention includes lip pencils, pencil-shaped eye shadows and the like in addition to eyeliner pencils and eyebrow pencils, and eyeliner pencils and eyebrow pencils are particularly suitable. Examples of the form include a pencil shape and a mechanical pencil shape. Among them, a mechanical pencil type eyeliner pencil and an eyebrow pencil to be fed out are preferable.
In particular, according to the present invention, there is provided a cosmetic product in which the above-described flat-core pencil-shaped cosmetic is stored in a mechanical pencil-type storage container so as to be fed out.

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. Unless otherwise specified, the amount is shown in mass%.
Prior to the description of the examples, the effect test method used in the present invention will be described.

(1) Evaluation test of integrity The test was carried out in the following manner using 10 samples. Each sample was applied to the paper until it was used up, and it was evaluated according to the following criteria whether there was any breakage during the application.

(Evaluation criteria)
◎: The number of folds until use up is 0 for all samples ○: The number of folds until use up is 1 to 2 times for all samples △: There are samples with 3 folds until use up ×: Samples with more than 4 folds before use up

Example 1 (Preparation of eyebrow pencil)
Color tone A and color tone B of the materials listed in the following Table 1 are kneaded separately, and the kneaded product is put into a core molding machine having a nozzle for core molding attached to the outlet, and the kneaded product of color tone A and color tone B is at the tip of the nozzle The core body 1 having two types of divided color streaks 1a and 1b in the longitudinal direction was molded by stretching out so as to be united at the part. The size of the cross section of each color streaks 1a and 1b of the core body 1 was 1 × 1.5 (mm).
Subsequently, it heat-processed at 60 degreeC for 3 hours, and annealed. Then, it waited for solidification and it was set as the core 1. The size of the core 1 is 1 × 3 (mm). The core body 1 was inserted into a mechanical pencil-type feeder 2 as a feeding core to form an eyebrow pencil 3 as shown in FIG.

  When eyebrow makeup is performed by feeding out the core body 1, the two types of color streaks are elongated and divided, so multicolor eyebrow makeup can be done with a single application, or different color streaks depending on the case It is possible to enjoy.

Examples 2-9, Comparative Example 1
An eyebrow pencil was prepared in the same manner as in Example 1 except that the heat treatment temperature was 50 ° C. for Example 2 and 65 ° C. for Example 3 with the formulations shown in Tables 1 to 3 below.

Reference Example An eyebrow pencil was prepared in the same manner as in Example 1 except that the heat treatment was not performed with the formulation shown in Table 1 below.

The integrity of the obtained eyebrow pencils of Examples 1 to 3, Reference Example, and Comparative Example 1 was evaluated based on the above-described criteria. The results are shown in Table 1.
Moreover, about Examples 4-9 which changed the compounding quantity of solid oil content with melting | fusing point of 70 to 105 degreeC, semi-solid oil with melting | fusing point of 40 to 65 degreeC, or solid oil, the state of the obtained core is shown in Table 2. Table 3 shows.

* 1: For color tone A and color tone B, titanium oxide, red iron oxide, yellow iron oxide, and black iron oxide were used, and the blending ratio was different for each color tone.

  Below, the example of formulation of the pencil-shaped cosmetics of this invention is given. Needless to say, the present invention is not limited by these formulation examples and is specified by the scope of claims.

Formula 1 (eyebrow pencil)
Compounding ingredients Compounding amount (color tone A) (color tone A)
Hardened castor oil 5.0
Mole 10.0
Behenic acid 16.0
Beeslow 4.0
Dimerlinoleic acid (phytosteryl / behenyl) 4.0
Sucrose acetate stearate 5.0
Triethylhexanoin 5.0
Tocopherol 0.05
Mica Residual colorant 40
(Color tone B) (Color tone B)
Hardened castor oil 5.0
Mole 10.0
Behenic acid 16.0
Beeslow 4.0
Dimerlinoleic acid (phytosteryl / behenyl) 4.0
Sucrose acetate stearate 5.0
Triethylhexanoin 5.0
Tocopherol 0.05
Mica Residual colorant 30
Production method:
The oil part is melted and mixed at 100 ° C., the powder part is added and mixed at 90 ° C. Thereafter, when the temperature reaches 80 ° C. or lower, kneading is appropriately performed with a roller, and injection molding is performed using a predetermined die. Then, after heat treatment at 60 ° C., it is cut into an appropriate length and loaded into a container.

Formulation Example 2 [Eyeliner Pencil]
Compounding ingredients Compounding amount (color tone A) (color tone A)
Hardened castor oil 5.0
Owl 8.0
Behenic acid 16.0
Hydrogenated palm oil 3.0
Palm kernel oil 1.8
Palm oil 1.2
Sucrose acetate stearate 5.0
Triethylhexanoin 6.0
Diisostearyl malate 3.0
Tocopherol 0.05
Mica Residual colorant 40.0
(Color tone B) (Color tone B)
Hardened castor oil 5.0
Owl 8.0
Behenic acid 16.0
Hydrogenated palm oil 3.0
Palm kernel oil 1.8
Palm oil 1.2
Sucrose acetate stearate 5.0
Triethylhexanoin 30 6.0
Diisostearyl malate 3.0
Tocopherol 0.05
Mica Residual colorant 30.0
Production method:
The oil part is melted and mixed at 100 ° C., the powder part is added and mixed at 90 ° C. Thereafter, when the temperature reaches 80 ° C. or lower, kneading is appropriately performed with a roller, and injection molding is performed using a predetermined die. Then, after heat treatment at 60 ° C., it is cut into an appropriate length and loaded into a container.

Formulation Example 3 [Lip Liner Pencil]
Compounding ingredients Compounding amount (color tone A) (color tone A)
Hardened castor oil 5.0
Hydrogenated palm oil 7.5
Palm kernel oil 4.5
Palm oil 3.0
Mole 7.0
Behenic acid 12.5
Sucrose acetate stearate 5.0
Hydrogenated polyisobutene 2.0
Triethylhexanoin 11.0
Tocopherol 0.05
Mica Residual color material 35.0
(Color tone B) (Color tone B)
Hardened castor oil 5.0
Hydrogenated palm oil 7.5
Palm kernel oil 4.5
Palm oil 3.0
Mole 7.0
Behenic acid 12.5
Sucrose acetate stearate 5.0
Hydrogenated polyisobutene 2.0
Triethylhexanoin 11.0
Tocopherol 0.05
Mica Residual colorant 27.0
Production method:
The oil part is melted and mixed at 100 ° C., the powder part is added and mixed at 90 ° C. Thereafter, when the temperature reaches 80 ° C. or lower, kneading is appropriately performed with a roller, and injection molding is performed using a predetermined die. Then, after heat treatment at 60 ° C., it is cut into an appropriate length and loaded into a container.

It is a figure which shows the cosmetics product in which the pencil-shaped cosmetics by this invention were accommodated in the mechanical pencil-type storage container so that supply was possible.

Claims (3)

(A) 15 to 35% by mass of solid oil having a melting point of 70 ° C. to 105 ° C., and (b) semi-solid oil having a melting point of 40 ° C. to 65 ° C. or 5 to 35% by mass of solid oil, Is a method for producing a pencil-shaped cosmetic material having a flat core shape that is divided into two or more types in the longitudinal direction,
Two or more kinds of cosmetic bases containing the component (a) and the component (b), which are different in color, are integrated at the same time with injection molding to form a flat core, and then heat-treated at 50 to 65 ° C. A method for producing a pencil-shaped cosmetic.   (A) 15 to 35% by mass of a solid oil having a melting point of 70 ° C. to 105 ° C., and (b) a semi-solid oil or a solid oil having a melting point of 40 to 65 ° C. Is divided into two or more colors in the longitudinal direction, a flat-core pencil-shaped cosmetic.   3. A cosmetic product, wherein the flat-core pencil-shaped cosmetic according to claim 2 is stored in a mechanical pencil-shaped storage container so as to be fed out.

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