JPS61286316A - Cosmetic for cleaning skin - Google Patents

Abstract

PURPOSE:The titled cosmetic having improved massaging effects, cleaning effects, skin dressing effects and feeling in use, showing beautiful appearance, obtained by making an oily substance having specific melting point and inorganic pigment into spherular substances and blending them with a cosmetic base. CONSTITUTION:An oily substance such as stearyl alcohol, spermaceti, etc., in a solid state having 404n80 deg.C melting point, in a pasty or liqiud state is blended with inorganic pigment such as talc, mica, etc. at a temperature >=the melting point of the oily substance, made into spherules having 0.14-0.9mm outer diameter, 0.4-0.9g/ml apparent specific gravity and 0.1-0.5kg/cm hardnessa and blended with a cosmetic base. The cosmetic is obtained by adding the spherules to cleaning cream, massaging cream, creamy pigment, etc., and the amount of the spherules blended is preferably 5-45wt% based on the total amount of the cosmetic. EFFECT:Capable of removing positively aged keratin layer, making the skin smooth and improving tension and luster of the skin.

Description

Detailed Description of the Invention (Technical Field) The present invention provides a novel skin cleansing product that is formulated with a small spherical substance consisting of an oily substance and an inorganic pigment and has excellent pine surge effect, cleansing effect, skin conditioning effect, and feeling of use. Regarding cosmetics for use.

(Prior art) Conventionally, in order to enhance the pine surge effect or cleaning effect on the skin, pulverized fruit kernels and synthetic resin particles (for example,
Skin cleansing cosmetics such as pine surge cream, cleansing cream, and creamy facial cleansing agent containing crushed apricot kernels, polyethylene particles, etc. are commercially available.

Furthermore, Japanese Patent Application Laid-Open No. 51-121580 describes [a cosmetic compound containing synthetic resins such as polyethylene, polypropylene, polystyrene, foams, sintered bodies, hollow bodies thereof, or spherical bodies such as light metals such as aluminum]. fee. ' has been proposed.

However, these pulverized products and small spherical products are made of hard materials (hardness of 1.9 kg 7 cd or more, hardness is measured according to the method described in the section on Shishi), so cosmetics containing them cannot be used. When you apply it to your skin and perform pine surgery with your fingers, you may experience an uncomfortable feeling such as rumbling or roughness, and when you actively perform pine surgery, you may experience skin pain and other disadvantages that do not give you a favorable feeling of use. had.

(Disclosure of the Invention) Therefore, as a result of intensive research in view of the above circumstances, the present inventor has determined that in a skin cleansing cosmetic containing the time-saving small spherical substance described later, the small spherical substance has a slightly stronger Hardness suitable for disintegration by pine surge or finger compression (
It has been discovered that by providing a shell with a pressure of collapse, the pine surge does not cause discomfort or pain to the skin due to pine surge, and it is comfortable to use, and enhances the pine surge effect, cleaning effect, and skin conditioning effect. , completed the invention.

(Objective of the Invention) An object of the present invention is to provide a skin cleansing cosmetic that contains a small spherical substance and is excellent in pine surge effect, cleansing effect, skin conditioning effect, and feeling of use.

(@Akira's structure) The present invention is a method of forming a foreign material, which is formed by kneading an oily substance with a melting point of 40 to 80°C and an inorganic pigment at a temperature higher than the melting point of the oily substance, cooling, and then pulverizing. The diameter is 0.14~0.
This is a skin cleansing cosmetic containing small spherical particles having an apparent specific gravity of 0.4 to 0.9 fj/me and a hardness of 0.1 to 0.5.

(Description of specific structure) The oily substance used in the present invention has a melting point in the range of 40゛0 to
80' (C solid or paste-like substance, containing one or two oil-based raw materials such as hydrocarbons, fats and oils, higher fatty acids, higher alcohols, synthetic esters, and surfactants with an HLB value of 5 or lower) The above-mentioned oily raw materials are not limited to solid or paste-like substances, but also include liquid substances, such as a mixture of liquid and solid oily raw materials. Melting point range is 40℃
If at ~80°C, it can be applied as an oily substance.

Examples of the above-mentioned oil-based raw materials include hard 4-silver fin, vaseline, liquid paraffin, carnauba wax, gay wax, beeswax, lanolin, olive oil, castor oil, hydrogenated castor oil, stearic acid, myristic acid, isostearic acid, stearyl alcohol, behenyl alcohol, and cetyl palmitate. , inpropyl myristate, sorbitan monostearate, glycerin monopalmitate, polyoxyethylene stearyl alcohol ether (2E,0)
, polio bovine diethylene hardened mustard oil derivative (10K, 0
), etc.

Inorganic pigments include talc, mica, kaolin, 4-titanium oxide, magnesium silicate, calcium carbonate, iron oxide, ultramarine, etc., with a particle size of 0.1 to 50μ and bulk (JISK5
101 method) 1.5 to 5 txl/& of pigment is preferred and required.

To prepare the small spherical material according to the present invention, first, a predetermined amount of the oily material is heated and melted in a kneader, which is a well-known vertical or horizontal kneading machine. Next, a predetermined amount of inorganic pigment is added while maintaining the temperature at 5 to 20° C. higher than the temperature at one point of the oily substance, and the mixture is stirred and kneaded so as to be uniform. By kneading in a kneader for a predetermined period of time, spherical objects having the size of a citron are formed. Next, the mixture is stirred and kneaded while cooling, and the spherical material is crushed to a small particle size. Subsequently, the particle size of the spherical particles may be separated using a sieve (20 to 100 meshes), for example, 20 meshes passed through a sieve - 100
If it does not pass through the mesh, it is possible to produce small spheres with an outer diameter of 0.14 to 0.9 mm.

Here, the containing storm of 5 oily substances on top is small spherules (M acid)
With Soja as the standard, 10 to 80 blood cakes (hereinafter referred to as wt%)
) is preferred. If the content is less than 10 wt%, it is not only insufficient to form the inorganic pigment into small spherules, but also the hardness of the spherules becomes low. If it exceeds 80 wt%, the hardness of the small spheres will increase, making it difficult to achieve the object of the present invention. In addition, the small spherules contain other raw materials such as fiber powders such as lurose powder, silk powder, and nylon powder, fragrances, colorants, skin nutrients,
It is also possible to blend antioxidants, sulfur powder, etc. as necessary.

Regarding the method for manufacturing the small spherules, the method of manufacturing the spherules using a kneading machine, stirring and kneading method, pure gold time, cooling temperature, pulverization method, etc., may be adjusted as appropriate to the extent that the object of the present invention is achieved. All you have to do is celebrate it.

The characteristics of the small spheres manufactured as described above are that the outer diameter is 0.1
4-0.9, apparent specific gravity 0.4-0.911/ll
t.

The hardness may be in the range of 0.1 to 0.51-. If the outer diameter is less than 0.14 mm, a sufficient pine surge effect and cleansing effect cannot be obtained, and if it exceeds 9 yim, the skin will feel strange when pine surges are performed, and a preferable feeling of use may not be obtained. In addition, the apparent ratio N is 0.4 i/ml US meter, or if it exceeds 0.9 glwl, it is 0, 1 to 0 as described later.
, 5 kg/ctn hardness is difficult to obtain. In length,
If the hardness n is less than 0.1 ky/Cm, the U small spherical object will easily crumble under the pressure of fingers, making it difficult to obtain sufficient pine surge effect and cleaning effect. It causes pain to the skin and does not provide a favorable feeling of use Vi.

In order to obtain the skin cleansing cosmetic of the present invention, the above-mentioned small spherules may be blended into known cleansing gels, cleansing creams, pine surge creams, creamy facial cleansers, etc. in a conventional manner, and the amount to be blended is determined according to the method. It is preferably 5 to 45 wt% based on the total t of the skin cleansing cosmetic. 5wt
If it is less than 45wt, sufficient pine surge effect and cleansing effect cannot be obtained, and if it exceeds 45wt, it may be difficult to prepare the formulation of the cosmetic, or it may cause an unpleasant feeling or pain to the skin during pine surge. This results in an undesirable feeling of use.

(Example) Hereinafter, an experimental example regarding a small spherical object and an example of the present invention will be described and explained.

The outer diameter, bulk height, and 4-digit specific gravity described in the experimental examples are values measured by a normal method, and the outer diameter is the average value of the maximum outer diameter of 100 small spheres, and the bulk height is JIK5101. The apparent specific gravity was calculated from the weight of 100 ml of small spheres according to the method.

The hardness measurement test, pine surge effect, cleaning effect, and skin conditioning effect evaluation tests are as follows.

(1) Hardness measurement test The hardness was defined as the average value of the hardness (collapse pressure) of 100 small spheres measured with a push-pull gauge (manufactured by Aiko Engineering Co., Ltd.).

(2) Evaluation test for pine surge effect, cleansing effect, and skin conditioning effect Twenty female testers using the make-up agent tested the makeup once in the morning and once in the evening for one month on each side of the face, on the left and right sides of the face. Approximately 0.5 g of the samples of Examples and Comparative Examples were applied to the skin, and pine surgery and face washing were performed in the usual manner. after that,
The test subject himself/herself used the paired comparison method to determine the “feel of pine surge,”
Evaluation items such as "cleansing effect J" and "skin conditioning effect J" are 1f1)-
I valued it.

Evaluation results Regarding each of the above evaluation items, the Example was better than the Comparative Example: ``The pine surge feels good.'' 1. The make-up agent was washed off well and the skin felt refreshed [7]. ”, [The skin became smoother, and the firmness and luster of the skin improved. 'fC.'

(Experiment example) Small spherules made from various oily substances and inorganic pigments were produced.
, conducted various tests on the characteristics of the small spherules.

(1) Characteristics of oily substances and inorganic pigments (hereinafter referred to as white) Table M1 (2) Method for producing small spherules Using the oily substances and non-4!11 pigments listed in Table 1,
Each small sphere was manufactured according to the above manufacturing method with the composition (total in+) listed in the xg table.

First, a predetermined amount of oily substance is put into a jacketed kneader having a capacity of 207i, and heated and melted at a temperature -5=zo'c higher than the melting point temperature of each oily substance. Next, while maintaining this temperature, a predetermined amount of inorganic pigment is gradually added while stirring, and the mixture is stirred and kneaded for 15 to 40 minutes to obtain a uniform composition. Furthermore, cooling water with a temperature of 6 to 10"C is passed into the jacket, and the spherical objects of various sizes are crushed into small spheres by stirring and kneading for 10 to 80 minutes while cooling. (20 to 100 meshes) are used to produce 5 separate pellets with different outer diameters as desired.

In Experimental Example 14, a fragrance and an antioxidant, butylated hydroxytoluene, were dissolved and mixed in stearyl alcohol, an oily substance, and then a mixture of yellow iron oxide and silk powder was blended.

(3) Characteristics of small spherules As shown in Table 2, it was difficult to obtain spherules in Experimental Example 1.2 due to the small amount of oily substance blended. Due to the large amount of oily substance blended, the apparent specific gravity and hardness showed high values.

As shown in Experimental Examples 7 to 9, as the content of the oily substance increases, the outer diameter tends to become smaller, and the apparent specific gravity and hardness become higher.

Examples 1 to B, Comparative Examples 1 to 2 [Cleansing gel] The small spherules and crushed apricot cores of the previous experimental examples were applied to the small spherules in the following basic composition as shown in Table 8. Each cleansing gel was prepared as follows.

(1) Basic composition (IV ingredients) (Blend JtwL%) Small spherules Listed in Table 8 (3) Carboxyvinyl polymer 0.7 (Carboball 94
o) ■Polyvinyl alcohol 0.2■Guri
Serin
5. rl■Methylparaben 0
．． 1(7) Diimpropaturamine 0.
7 ■ Water The total amount of water is too ' (2) Preparation method After fermenting the raw ingredients (components q) to (f) in the grain water in sequence, mix the small spherules of component (■) uniformly while stirring. Each cleansing gel was prepared by mixing.

The crushed apricot kernels were commercially available as raw materials for cosmetics and had an average outer diameter of Q, 51&.

(3) Properties Comparative Example 1 and Examples 1 and 2, and Comparative Example 2 and Example 8 were compared in pairs, and the results of evaluation regarding each evaluation item as described above are listed in Table 8.

In contrast to Comparative Example 1, Examples 1 and 2 are clearly superior in the feel of pine surge and skin conditioning effect, and it can be clearly seen that KM has a high pine surge effect and a high cleaning effect. In addition, the conventional crushed apricot kernels of Comparative Example 2 caused tingling and pain on the skin during pine surge, making it impossible to actively pine surge, whereas Example 8 showed a much better effect on l+1.

In particular, Example 8#i is a cleansing gel with a beautiful appearance in which small red spherules are dispersed in a transparent gel.

Examples 4-6. Comparative Example 8 [Cream Facial Cleanser] In the same manner as in Example 1, creamy facial cleansers were prepared by applying the small spherules of the experimental examples listed in Table 8.

(1) Basic recipe (raw ingredients) (Blend iIkwt%) O
Small spheres Listed in Table 8 (2) - Manufacturing method Ingredients (A) and (B) are each heated and fermented at a temperature of 80°C.
"O". Gradually pour component (A) into component (B) with stirring, then stir for 15 minutes. Cool while stirring, and when the temperature reaches 40°C, add small spherules. ,
Further cool to 80″C.

(3) Properties Comparative Example 8 and Examples 4 to 6 were compared in pairs, and the results of evaluation regarding each evaluation item are listed in Table 8.

When the small spheres of Experimental Example 6 with a hardness of 0.6 k, g/an were applied, Comparative Example 8 #-i, the small spheres did not collapse during pine surge and were applied to the skin! Examples 4 to 6 showed better results with respect to each evaluation item because they produced a sense of harmony.

In addition, in Example 4 #'li', in which the small spherical objects having a hardness of o and 1- were applied in Experimental Example 7, the small spherical objects easily collapsed during pine surge, and the effect of pine surge was found to be somewhat low.

In particular, Examples 5 and 6 are creams with a beautiful appearance in which yellow, blue, or red spherical particles are evenly dispersed, and the pine serge is broken up by the pine serge to create a pleasant pine serge. This further enhanced the pine surge effect.

Example 7. Comparative Example 4 [Pine Surge Cream] Each pine surge cream was prepared by applying the small spheres and polyethylene particles of the experimental example as shown in Table 8.

(1) Basic recipe (raw ingredients) (composition Jt w tch)
O Small spheres Listed in Table 8 (2) 1 Manufacturing method Ingredients (A) and (B) are each heated and melted to a temperature of 80°C.
℃. Component (B) was poured into component (A) with stirring to obtain a homogeneous emulsion, then cooled to 40°C without stirring, and then the small spheres or polyethylene particles of the experimental example were stirred in a ladle. The mixture was mixed and further cooled to 80°C.

The polyethylene particles used were commercially available raw materials for cosmetics and had an average outer diameter of 0.461 m.

(3) Characteristics Comparative Example 4 #-j During pine surgery, the skin feels strange and pain is caused to the KFi skin that actively undergoes pine surgery. Example 7 obtained better results regarding each evaluation item. It should be noted that Example 7 Fi has a beautiful appearance in which the blue small spherical objects are dispersed, and when the small spherical objects are broken up by a pine surge, K is even more pine (effect of the invention).As described above, the present invention has the following features: It has excellent pine surge effect and cleansing effect, actively removes aged stratum corneum, smoothes the skin, improves the skin's tension and luster, and has a skin conditioning effect that gives it a beautiful appearance. It is clear that a novel skin cleansing cosmetic product is provided.

Claims (1)

[Claims] (1) An oily substance with a melting point of 40 to 80°C and an inorganic pigment are kneaded at a temperature higher than the melting point of the oily substance, cooled, and then pulverized, and the outer diameter is 0.14 to 0.9
mm, apparent specific gravity 0.4 to 0.9 g/ml, hardness 0
．． A skin cleansing cosmetic containing 1 to 0.5 kg/cm^2 of small spherules.