JPS63165303A - W/o-type lip cosmetic - Google Patents

Abstract

PURPOSE:To obtain the titled cosmetic easily applicable to lip, giving moist feeling and excellent gloss to the lip and having excellent moisture-retaining effect, etc., by compounding a dextrin higher fatty acid ester, a hydrogenated polybutene, maltitol, liquid oily substance, water and, if necessary, a colorant. CONSTITUTION:The titled cosmetic is composed of 1.0-6wt% compound of formula (A is H or 12-18C acyl; n is 20-30), etc., 20-50% hydrogenated polybutene having an average molecular weight of 500-5,000, 2-15% maltitol (in terms of dry solid), 10-40% liquid oily substance (e.g. liquid paraffin, squalane, vegetable oil, etc.), 0-30% colorant (e.g. pigment, natural dye, etc.) and 2-30% water. The cosmetic is fluid creamy or pasty material having a viscosity of 10,000-100,000cps at 30 deg.C. Since the cosmetic has high adhesivity, it gives durable make-up resistant to spreading, gathering, movement, etc., and imparts emollient property to the lip to prevent the roughening of the lip.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a liquid essential cosmetic material emulsified in a water-in-oil type (hereinafter referred to as a W2O type liquid essential cosmetic material). When applied to the lips, it spreads lightly, gives the lips a moist feel (moist feeling), gives a good gloss, has good adhesion (no twisting or movement), has a moisturizing effect, and has good storage stability. Good W2O type liquid cosmetics (lipstick, lip balm).

lip treatment).

(Conventional technology) Conventionally, lipsticks come in stick type and kneaded type, but because they contain a large amount of hard and cloudy wax, they do not spread well when applied, and do not give a good gloss to the lips. It cannot give a smooth feel.゛In addition, many proposals have been made for W2O type glue lapstick to improve these drawbacks, but in reality, it contains a large amount of wax, so the spread, gloss, and feel are not sufficient, and it is not satisfactory. It's not a thing. (Unexamined Japanese Patent Publication No. 5
6-12608, JP-A-54-49887, JP-A-66-58608).

(Problems to be Solved by the Invention) In order to improve the drawbacks of the above-mentioned oil-based lipsticks and W10 type lipsticks, the present inventors conducted intensive and extensive systematic research, and found that W2O, which has the composition described below. When applied to the lips, the mold emulsion gives the lips a smooth, moist touch (feel) and a deep wood-like luster, and adheres well, preventing smudges, curls, and movement. The present invention was completed based on the findings that the cosmetic effect is not easily lost, the cosmetic effect is not easily lost, the lips are given emollient properties to help prevent lips from becoming chapped, and the moisturizing properties and storage stability are also good.

(Means for Solving the Problems) That is, the present invention comprises dextrin higher fatty acid ester, hydrogenated polybutene having an average molecular weight of 500 to 5000, maltitol, a liquid oily substance and water, or further a coloring material. It is a liquid lip cosmetic of the W2O type, which is characterized by the following: The dextrin higher fatty acid ester used in the present invention has the following general formula (1
) Dextrin higher fatty acid esters (for example, lauric acid esters, palmitic acid esters, stearic acid esters, etc.) are preferred.

General formula (1) (In the above formula, AC is a hydrogen atom or a carbon number of 12 to 1
With 8 acyl groups, n=20 to 80. ) This dextrin higher fatty acid ester is safe and does not cause skin irritation.
It gels or thickens liquid oily substances, imparts thixotropic properties to liquid lip cosmetics in the W2O type, and contributes to improving storage stability (emulsion stability).

The amount (content) of the dextrin higher fatty acid ester used in the present invention is 0.5 to 10% by weight, preferably 1.0 to 6% by weight based on the weight of the composition. If it is less than 0.5% by weight, storage stability and adhesion tend to deteriorate, and if it exceeds 10% by weight, adhesion and feel tend to deteriorate.

The above hydrogenated polybutene is obtained by hydrogenating the unsaturated bonds of polybutene, and is highly safe without causing skin irritation. Its average molecular weight is 500 to 5,000 as described above. When the average molecular weight is less than 500, storage stability,
Adhesion decreases, and if it exceeds 5,000, the elongation during application will be poor and storage stability will also decrease, which is not preferable.

The usage ti (content) of the hydrogenated polybutene is 5 to 60 fkg6, preferably 20 to 5 fkg, based on the weight of the composition.
It is 0% by weight. If it is less than 5% by weight, the adhesion to the lips will decrease, and if it exceeds 60% by weight, it will tend to spread poorly when applied.

The above-mentioned maltitol is usually used as an aqueous solution, and the amount (content) used is 1 to 25 parts by weight based on the weight of the composition as a dry solid content! L96, preferably 2 to 16% by weight. When 1 is less than the amount %, storage stability, moisture retention, and feel tend to deteriorate.

Liquid oily substances that can be used in the present invention are oily substances for cosmetics that are liquid at room temperature, such as liquid paraffin, squalane, and liquid synthetic ester oils (e.g., tricaprylic glycerin caprate, octyl myristate). (dodecyl, etc.), alcohol, oleyl alcohol, etc.), liquid higher fatty acids (for example, isostearic acid, etc.), silicone oil, and the like. However, it is not limited to these.

The amount (content) of the liquid oily substance used is 5 to 60% by weight, preferably 10 to 40% by weight, based on the weight of the composition. If it is less than 5% by weight, the spread and gloss will decrease when applied to the lips, and if it exceeds 60% by weight, the adhesion to the lips and abrasion resistance will tend to decrease. The above-mentioned coloring material in the present invention is an inorganic pigment, an organic pigment, a natural pigment, an edible pigment, a dye, etc., and the usage amount (content) thereof is 0 to 80i%.

Since the lip cosmetic of the present invention contains a relatively large amount of water, it is possible to effectively and appropriately select and use a wide range of new water-soluble mulberry pigments such as natural pigments and food pigments, and it is extremely easy to adjust the hue. be. Water is usually added as an aqueous solution of maltitol;
The amount used (containing shadow is 1 to 60% based on the weight of the composition)
If it is less than 61% by weight, preferably 2 to 30% by weight, or exceeds 50% by weight, the storage stability will decrease. In addition, at least one kind of fragrance, sequestering agent, ultraviolet ray inhibitor, preservative, skin nutrient, humectant, wax for viscosity adjustment, etc. may be added as necessary within a range that does not impede the effects of the present invention. be able to.

The essential cosmetics of the present invention can be produced by various methods, but one method is to add a multilayer to a mixture of the dextrin fatty acid ester, hydrogenated polybutene, liquid oily substance, or colorant in the required amount. This is carried out by adding and mixing a toll aqueous solution with stirring to emulsify it.

In the liquid cosmetic composition of the present invention, the term "liquid" means cream-like or pasty-like and fluid, and the viscosity thereof is usually 100° C. at 80°C.

Toooo within the range of 100,000 cps←Sanbankai-1; The W2O type liquid cosmetic of the present invention has a relatively high viscosity, but has fluidity and thixotropic properties, so it is suitable for It is easy to fill a container such as a brush pen and discharge it from the container. In addition, there is no limit to the number of containers, and a wide variety of containers can be used to meet diversifying consumer needs.

The cosmetics of the present invention are extremely useful as liquid lipsticks, creams, and lip treatments.

(Effects of the Invention) The W2O-type liquid cosmetics of the present invention form a W2O-type uniform and stable emulsion system, have good storage stability, and (b) have fluidity and thixorobic properties. When applied to the lips, it spreads well, has a smooth feel, and has an el.
Gives your lips a soft touch and a deep wood-like luster, and adheres well to your lips (no smearing, wrinkling, or movement).
Makeup does not easily come off, increases the cosmetic effect, (e) It also provides emollient properties to the lips, helping to prevent lips from becoming chapped, and (f) has good water retention properties.

etc., and have extremely high commercial value.

(Example) Examples will be described below. Incidentally, the parts shown in the examples mean parts by weight, and the % means weight %.

Example 1 Dextrin palmitate ester (n=
20-80) and 5 parts of hydrogenated polybutene (average molecular f
k1500) 40 parts, 88 parts of liquid paraffin, 1.6 parts of ferric oxide, 1.6 parts of titanium dioxide, 20 parts of red
Mix 1 part of No. 2 (pigment), 0.8 part of yellow No. 4 (pigment), and 7 parts of titanium-coated mica, heat and stir at 80°C to dissolve uniformly, and then dissolve this solution (pigment). is dispersed) was added and mixed with 10 parts of maltitol aqueous solution (concentration 5096) at 80°C while stirring at 80°C, uniformly emulsified for 10 minutes, and when the temperature was lowered to 70°C, Liquid lipstick of the present invention of W10 type emulsion soda (viscosity: 26,000 Cp8 at 80°) with an appropriate amount of fragrance added.
I got it. This liquid lipstick has a fine texture (very good), and after being left in a constant temperature bath at 46°C for 6 months, there is virtually no change in texture or emulsion state, and it has storage stability (stable over time). ) was also extremely good. Mana, this liquid lipstick is
It has thixotropic properties and is strongly
It was also easy to fill. It should be noted that these tests were conducted by eight skilled professional inspectors.

Next, we conducted a practical test of this liquid lipstick (spreading feeling on the lips, adhesion, makeup retention, etc.) during the winter on a female panel (ages 19 and up).
The product was used continuously for one month by 20 people (age 80) (using a red brush as the application tool), and its practical performance was investigated using a questionnaire.

As a result, 2 out of 20 people answered that it spreads well when applied.
0 people answered that the feel on the lips was good (smooth, moist feel), 19 out of 20 people answered that the adhesion to the lips was good (no wrinkling, smearing, or movement). 1 out of 20 people
8 people answered that the makeup had a good shine, 20 out of 20 people answered that it had a good shine, and 18 out of 20 people said that it had a good makeup feel. Also,
The results of a practical test conducted by eight specialized inspectors showed that the product had a smooth, spreadable, and moist touch (feel) on the lips.
It gave a deep and good gloss, had no twisting, movement, or smearing, had good adhesion to the lips, and had good makeup retention.

Comparative Example 1 (When maltitol is not used) Except for not using maltitol and adding 10 parts of water,
A comparative liquid lipstick (
A W10 type emulsion was produced. As a result, the obtained liquid lipstick had a rough texture and was defective, and separated one hour after manufacture. Moreover, even if maltitol is omitted, a W10 type emulsion with good emulsion stability (storage stability) cannot be obtained.

Comparative Example 2C Using sorbitol instead of maltitol) The same procedure as in Example 1 of the present invention was carried out except that sorbitol, a related compound, was used instead of maltitol. ) was manufactured. As a result, the obtained liquid lipstick had a rather good appearance (texture), but when it was stored in a constant temperature bath at 45° C. for two weeks after being manufactured, separation occurred.

Comparative Example 8 A comparative liquid lipstick (W10 type emulsion) was produced in the same manner as in Example 1 of the present invention, except that sorbitan monooleate was used instead of dextrin palmitate. The resulting liquid lipstick had a fairly fine texture and good appearance, but after manufacturing,
Separation occurred after one month in a 45°C thermostat.

Comparative Example 4 A comparative liquid lipstick (W10 emulsion bottle) was produced in the same manner as in Example 10, except that sorbitan sesquiolate was used instead of dextrin palmitate. The resulting liquid lipstick had a good texture with a fairly fine texture, but after being manufactured, it was
Separation occurred after one month in a constant temperature bath.

Comparative Example 5 A comparative liquid lipstick (W10 type emulsion lipstick) was produced in the same manner as in Example 1 of the present invention, except that sorbitan monostearate was used instead of dextrin palmitate. As a result, the resulting liquid lipstick had a rough texture, was defective, and separated 80 minutes after manufacture.

Example 2 The average molecular weight of hydrogenated polybutene (EIAPB) was
Each liquid lipstick (W10 type emulsion) was manufactured in the same manner as in Example 1 of the present invention except for making the changes as shown in the table. Table 1 shows the practical performance of each liquid lipstick obtained.

As is clear from the results in Table 1, the average molecular weight of the hydrogenated polybutene is preferably 500 to 6,000.

Comparative Example 6 A comparative liquid lipstick (W10 type emulsion) was produced in the same manner as in Example 1, except that white petrolatum was used instead of hydrogenated polybutene. the result,
The resulting liquid lipstick separated after two months in a 45°C constant temperature bath after its manufacture.

Example 8 (Lip Balm) Ferric oxide, titanium dioxide, red No. 202, yellow No. 4, and titanium-coated mica were not used, and 45 parts of hydrogenated polybutene, 88 parts of liquid paraffin, and maltitol aqueous solution (concentration 60 A lip balm made of W10 type emulsion soda of the present invention (viscosity: 16,000 C1 at 80°C) was prepared in the same manner as in Example 1, except that 12 parts of 12 parts of %) were used.
I got it.

This lip balm has a fine texture (extremely good)
Even after being left in a constant temperature bath at 45° C. for 6 months, there was no abnormality in appearance and the storage stability (emulsion stability) was extremely good.

This lip balm had thixotropic properties, and when strongly stirred, the viscosity decreased significantly and the fluidity increased, making it easy to fill into containers (chapes). Next, a practical test of this lip balm was conducted in the same manner as above. As a result, 20 out of 20 people said that it spreads well when applied, 18 out of 20 people said that it feels good on the lips (smooth, moist feel), and that it has a good gloss. 18 out of 20 people answered that the adhesion to the lips (no twisting, smearing, or movement) was good for 18 out of 20 people.

Example 4 (liquid lipstick) The same procedure was carried out except that 10 parts of olive oil, 20 parts of liquid paraffin, and 8 parts of silicone oil were used instead of 88 parts of liquid paraffin, and hydrogenated polybutene with an average molecular weight of 1000 was used. A liquid lipstick (W10 type emulsion) of the present invention was produced in the same manner as in Example 1 of the present invention.

The viscosity of the obtained liquid lipstick was 21,000 at 80°C.
cps, fine texture (extremely good), and 45
After being left in a constant temperature bath at 0.degree. C. for 6 months, there was virtually no change in the texture or emulsification state, and the storage stability was also extremely good. In addition, this liquid lipstick had thixotropic properties, and when strongly stirred, the viscosity decreased and the activity increased, making it easy to fill into containers (tubes).

Next, as a result of conducting a practical test of this liquid lipstick in the same way as above, 2 out of 20 people answered that it spread well when applied.
0 people answered that the feel on the lips was good (smooth, moist feel), 18 out of 20 people answered that the adhesion to the lips was good (no wrinkling, smearing, or movement). 1 out of 20 people
8 people answered, 19 out of 20 people answered that the gloss was good, and 18 out of 20 people answered that the makeup lasted well. In addition, according to the results of a practical test conducted by eight specialized inspectors, it gives lips a smooth, elastic, and moist touch (feel) and a deep, good gloss, and does not curl, smear, or move.
Adhesion to the lips was good, and makeup retention was good.

Comparative Example 7 (Wlom glue lapstick) 9.0 parts of carnauba wax, 7.0 parts of solid paraffin, 5.0 parts of microwax, 9.0 parts of lanolin, 15.0 parts of castor oil, 18.0 parts of squalane, sorbitan Monooleate8.
0 parts of titanium dioxide, 4.0 parts of titanium dioxide, 1.0 parts of ferric oxide, and 2.0 parts of Red No. 202 (dye) were placed in a homomixer, heated to 80°C, and dissolved with stirring. While stirring this solution (the pigment is dispersed) at 80°C, add to it an aqueous solution (80"C) consisting of 7.0 parts of maltitol and 20 parts of water.
) were added and mixed to emulsify, and when the temperature was lowered to 70°C, an appropriate amount of fragrance was added. This lipstick composition is a W2O type emulsion. Next, pour this into a lipstick mold (temperature 70°C), cool it, and form a stick (diameter 12.5°C).
mm).

In order to compare the practical performance of the obtained W2O type stick lipstick and the W2O type liquid lipstick obtained by the present invention in Example 1, a panel of 20 people (female ages 19 to 80) conducted a practical test. A test (pairwise comparison method) was conducted. The results are shown in Table 2.

As is clear from the results in Table 2, the present invention (Example 1)
The liquid lipstick (W2O type) is the same as the stick lipstick (W2O type).
Compared to Type 2O), it has significantly better spreadability, gloss, and adhesion to the lips when applied.

Furthermore, this W2O type stick lipstick and the W2O type lipstick of Example 1
In order to numerically evaluate the elongation of the 2O type liquid lipstick, a sample was filled between the cone and the plate at 80°C using a cone-plate viscometer, and each torque generated when the rotation was 1.5 rpm was measured. The value was measured.

As a result, the torque (p-cm) was 50.7 for this W2O type stick lipstick, whereas it was 8.8 for the W2O type liquid lipstick of the present invention (Example 1). It is very small and shows that it is more stretchable (good stretchability).

Example 5 The same procedure as in Example 1 was carried out except that 8.0 parts by weight of candelilla wax and 80 parts of liquid paraffin were used, and a W2O type liquid lipstick (W10 type emulsion) of the present invention was prepared. Manufactured. The resulting liquid lipstick had a fine texture (very good), and after being left in a constant temperature bath at 45°C for 6 months, there was virtually no change in the texture or emulsification state, and the storage stability was extremely good. there were.

In addition, according to the results of a practical test conducted by eight specialized inspectors, it provides a smooth, elastic, and moist touch (feel) to the lips, and a good gloss, and has excellent adhesion to the lips without twisting, smearing, or movement. It was good, and the makeup lasted well.

=1

Claims (1)

[Claims] (1) In oil, characterized by containing dextrin higher fatty acid ester, hydrogenated polybutene with an average molecular weight of 500 to 5000, maltitol, liquid oily substance, water, or further a coloring material. A liquid lip cosmetic emulsified in the form of water droplets.