JP2546794B2 - Foam self-injection lotion composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a powder-containing lotion composition to be sprayed in the form of foam. More specifically, it has excellent storage stability, and the powder and propellant in the composition are uniformly dispersed in the water system by shaking during use, and when sprayed, it becomes a foamy powder-dispersed lotion, which is excellent in practical properties. The present invention relates to a powder-containing lotion composition having a foam self-injection property (aerosol type).

(Prior Art) A powder-containing lotion that has conventionally used the inherent properties of powder such as calamine lotion (anti-flame lotion), water-based foundation, and sebum control lotion, mixes the powder together when used. It is known that a uniform suspension is formed to form a uniform suspension, and the suspension is applied to the skin of each part of the body with a cotton cloth or by hand.

(Problems to be solved by the invention) However, when a conventional powder-containing lotion, for example, a calamine lotion or an aqueous foundation is used as a cosmetic cotton, the powder remains in the cosmetic cotton and may cause skin damage. Putting is done to reduce the amount of powder adhering and to transfer the remaining powder from the cotton on the skin to the skin. However, the powder that has been soiled and has entered the fiber structure of the garment has drawbacks such as being difficult to remove even after washing and causing stains.

In addition, the conventional powder-containing lotion has the drawback that even when it is directly applied to the skin by hand, the lotion spills or scatters from the hand and stains the surroundings and clothes with powder in the lotion. Had.

The present invention has been earnestly studied in view of the above-mentioned drawbacks of the prior art, and has excellent practical properties without soiling the surroundings and clothes when applied to the skin, and further has good shaking dispersibility and storage stability. A foam-containing self-injecting powder-containing lotion composition having

(Means for Solving Problems) In order to solve the problems described above, the foam self-injection lotion composition of the present invention is HLB8 (calculated from Griffin's formula,
The same shall apply hereinafter) 0.01 to 5% by weight of the above nonionic surfactant, 0.1 to 30% by weight of powder, 70 to 99% by weight of water, and 1 to 30% by weight of propellant.

HLB8 or more nonionic surfactants used in the present invention include, for example, sorbitan monolaurate (HLB8.6) as a sorbitan fatty acid ester, decaglyceryl monolaurate (HLB15.5) as a polyglycerin fatty acid ester,
Decaglyceryl monostearate (12.0), hexaglyceryl monooleate (HLB11.0), sucrose monolaurate (HLB15-16) as sucrose fatty acid ester, sucrose monostearate (HLB8-16), polyoxyethylene Polyoxyethylene (hereinafter abbreviated as POE) as sorbitan fatty acid ester (20 mol) sorbitan monolaurate (HLB16.9), POE (6 mol) sorbitan monostearate (HLB9.6), POE as polyoxyethylene sorbit fatty acid ester (40 mol) Sorbit tetraoleate (HLB12.5), POE (15 mol) glyceryl monooleate (HLB14.5) as polyoxyethylene glycerin fatty acid ester, polyethylene glycol distearate (HL) as polyethylene glycol fatty acid ester
B8.0-16.5), POE (2 mol) as polyoxyethylene alkyl ether (HLB8.0), POE (40
Mol) cetyl ether (HLB20.0), POE (50 mol) oleyl ether (HLB18.0), POE (30 mol) hexyne decyl ether (HLB15.5), POE (30 mol) phytosterol as polyoxyethylene phytosterol ( HLB1
8.0), polyoxyethylene polyoxypropylene (POP
Abbreviated as) POE (20 mol) POP (4
Mol) Cetyl ether (HLB16.5), POE (20 mol) POP
(6 mol) decyl tetradecyl ether (HLB11.0),
PO as polyoxyethylene alkyl phenyl ether
E (5 mol) nonyl phenyl ether (HLB8.0), POE
(30 mol) Octyl phenyl ether (HLB20.0), POE as polyoxyethylene alkylamine (15 mol)
Oleylamine (HLB15.5), dimethylpolysiloxane methyl (PO as a silicone-based nonionic surfactant)
E (10 mol) siloxane copolymer, (HLB15), dimethylpolysiloxane-methyl (POE (20 mol) POP (20 mol)) siloxane copolymer (HLB8-19), perfluorinated nonionic surfactant Examples thereof include fluoroalkyl polyoxyethylene adducts, preferably sucrose fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyoxyalkylene-modified organopolysiloxane, and one or two of them. The above is used in combination.

The blending amount of these nonionic surfactants is 0.01 to 5% by weight, preferably 0.05 to 2% by weight, based on the total weight of the composition. If it is less than 0.01% by weight, it will not be foamy, and if it is more than 5% by weight, bubbles will not easily disappear on the skin during application and it is very difficult to use. In addition, the feel is not sticky, which is not preferable.

The purpose of the nonionic surfactant used in the present invention is to disperse the propellant, which is a constituent of the present invention, in the system by shaking during use.

Further, a nonionic surfactant having an HLB of less than 8 is not suitable because it is difficult to dissolve in water and some insoluble parts are dispersed.
Furthermore, anionic surfactant, cationic surfactant,
The amphoteric surfactant causes the powder to agglomerate in the system, resulting in blocking the aerosol valve and impairing the feeling of use. And some of these are accompanied by skin irritation.

The propellant used in the present invention may be a known one such as Freon (trichloromonofluoromethane, dichlorodifluoromethane, dichlorotetrafluoroethane, monochlorodifluoromethane, etc.), LPG (propane, n-butane, n−
Pentane etc.), dimethyl ether, etc. are preferred, and chlorofluorocarbon and LPG are preferably used alone or in combination of two or more thereof. The compounding amount is 1 to the total weight of the composition.
30% by weight and 2 to 15% by weight are preferable.

The powder used in the present invention is a water-insoluble inorganic or organic powder such as zinc oxide, titanium monoxide, titanium dioxide, titanium trioxide, talc, kaolin, mica, sericite, yellow iron oxide. , Red iron oxide (black iron oxide), black iron oxide, anhydrous magnesium silicate, anhydrous aluminum silicate, hydrous silicon oxide, anhydrous silicic acid, calcium carbonate, magnesium carbonate, bentonite, mica titanium, calamine, ultramarine, sulfur (eg colloidal sulfur , Precipitated sulfur, etc.), bismuth oxychloride, zirconium oxide, carbon black, pigment lakes, oil-soluble pigments, etc.
These are used alone or in combination of two or more. The amount used (blending amount) is 0.1 to 30 relative to the total weight of the composition.
%, Preferably 1 to 15% by weight. These powders are capable of adsorbing a propellant on the surface of the powder to prevent agglomeration (caking) of the powder, thereby improving the long-term storage stability of the product. Among the above powders, it is particularly preferable to add zinc oxide, titanium dioxide, talc, kaolin, mica, sericite, anhydrous aluminum silicate, anhydrous magnesium silicate, and calamine.

In addition to the above, various types of water-soluble pigments, fragrances, preservatives, bactericides, antiphlogistics, antioxidants, moisturizers, UV absorbers, alcohols, etc. can be used in the foam self-propelling lotion composition of the present invention. Can be appropriately blended within a range that achieves the object of the present invention.

(Effect of the invention) The foam self-propelling lotion composition of the present invention is, for example, shaken, and when used, the powder and the propellant are easily dispersed uniformly, and the lotion is automatically foamed from the aerosol container. When it is applied to the squirted skin, it does not stain the surroundings or clothes with powder, has excellent practical properties, and further exhibits good shaking dispersibility and storage stability.

The present invention has the unique and remarkable effects as described above, and is useful as, for example, an aerosol-like calamine lotion (anti-inflammatory lotion), an aqueous foundation, a sebum control lotion, a conditioning lotion, an acne lotion and the like. It is intended to provide a cosmetic lotion.

(Example) Hereinafter, an Example is described and this invention is demonstrated.

The parts shown in the examples mean parts by weight. The properties (foaming dispersibility, storage stability, practical properties) of the foam self-propelling foamy lotion shown in the examples were examined.

 The test method is as follows.

(1) Shaking dispersibility The sample composition filled in a transparent pressure-resistant glass aerosol container was manually shaken vigorously up and down and allowed to stand at room temperature for 7 days.
After a day, the sample was manually shaken again vigorously up and down, and the number of shakings required until the components were uniformly mixed was examined. When the required number of shakings is 1 to 5 times, it is extremely good (extremely easy to use. Code is ◎), when 6 to 10 times is good (easy to use, code is ○), and when 11 to 20 times. Slightly bad (somewhat difficult to use. The code is △), and 21 times or more was bad (difficult to use. The code is ×).

It should be noted that the larger the number of times of shaking required, the more time and effort is required for shaking, which makes it difficult to use.

(2) Storage stability test As in the case of (1) above, 40 samples of 80 samples each filled with the composition in a transparent pressure-resistant glass aerosol container were prepared.
After being stored in a constant temperature chamber at a temperature of 6 ° C. for 6 months, after the evaluation of (1) and shaking, the ejection state when ejected into the atmosphere was examined. As for the evaluation results, all of the samples (30 pieces) that could be ejected smoothly are shown by a circle, and even if one of them had a nozzle clogging due to powder, it was shown by a symbol of x.

(3) Practical characteristic test Twenty testers conducted a practical test on each sample.
The evaluation method was as follows. First of all, when using it, shake it to uniformly disperse the powder and propellant, and the foam automatically ejected from the aerosol container into the atmosphere is directly applied to the skin of each part of the body (especially face, shoulders, limbs, back). We investigated the applicability of whether it could be applied easily without splashing or drooling.
As a result, "good" and "somewhat good" with respect to the content
"Good" and "Slightly good" in the answers "Normal" and "Inferior"
The number of people who answered

The specifications of the aerosol container applied to each of the above tests are as follows.

a Bolt: Transparent pressure-resistant glass bottle or aluminum can (epoxyphenol resin coat) b Valve: Nylon resin, stem hole 0.5 mmφ x 2 c Spout: Inverted spout Examples 1-4, Comparative Examples 1-4 (calamine lotion) ) (1) Prescription (2) Manufacturing method After uniformly dissolving and dispersing components (1) to (3), the mixture is placed in a predetermined aerosol container, and a predetermined valve is attached while deaerating the upper air with a vacuum pump. Then, the ingredients were press-filled to prepare each calamine lotion.

(3) Characteristics The various tests were carried out on each of the obtained calamine lotions, and the results of examining the characteristics are shown in Table 1. As shown in Table 1, the amount of the nonionic surfactant blended was 0.01 to 5% by weight based on the total weight of the composition, showing good shaking dispersibility, storage stability and practical properties. However, when the content of the nonionic surfactant is less than 0.01% by weight (Comparative Example 1),
Even when shaken, the propellant could not be uniformly dispersed in the system, and when ejected from the aerosol container into the atmosphere, it did not become a uniform foam. That is, when it was applied to the skin, it was scattered or drooped down, resulting in poor practical properties. When it is 5% by weight or more (Comparative Example 2), the calamine lotion becomes a uniform foamy form, but the foam does not disappear on the skin (difficult to apply), and the nonionic surfactant has a functional stickiness, which is a practical characteristic. Not preferable.

Furthermore, anionic surfactants (here, N-lauroyl-L-sodium glutamate), cationic surfactants (here, stearyltrimethylammonium chloride), amphoteric surfactants (here, 2-alkyl-).
N-caroxymethyl-N-hydroxyethyl imidazolinium betaine) both agglomerated the powder, which blocked the valve of the aerosol container, rendering it unusable.

Examples 5-9, Comparative Examples 3 and 4 (sebum control lotion) (1) Formulation (2) Manufacturing method After uniformly dissolving and dispersing components (1) to (5), a predetermined aerosol container is placed, and a predetermined valve is attached while deaerating the upper air with a vacuum pump. Next, the ingredients were press-filled to prepare a sebum control lotion.

(3) Characteristics The obtained sebum control lotion was subjected to the various tests described above, and the results of examining the characteristics are shown in Table 1.
As shown in Table 1, when the amount of the powder compounded was 0.1 to 30% by weight based on the total weight of the composition, good shaking dispersibility, storage stability and practical properties were exhibited. However, if the amount of the powder blended is less than 0.1% by weight, there is no degreasing power, and sebum cannot be controlled, resulting in poor practical properties. Further, when the amount of the powder blended was more than 30% by weight (Comparative Example 7), the shaking dispersibility and the storage stability were poor and the feeling was poor.

Examples 10 to 13 Comparative Examples 8 and 9 (Aqueous Foundation) (1) Formulation Note) DPM in the table is dimethylpolysiloxane-methyl (polyoxyethylene (10 mol)) siloxane polymer (HLB15) (2) Manufacturing method Components are uniformly dissolved and dispersed, and then put in the specified aerosol container. Attach the specified valve while deaerating the upper air with a vacuum pump. Then, the components were press-filled to prepare each aqueous foundation.

(3) Characteristics The various tests were conducted on the obtained aqueous foundation, and the results of examining the characteristics are shown in Table 1. As shown in Table 1, the compounding amount of the propellant is 1 to the total weight of the composition.
At 30% by weight, good shaking dispersibility, storage stability and practical properties were exhibited.

However, if the compounding amount of the propellant is less than 1% by weight, the propellant cannot be adsorbed on the entire surface of the powder. That is, it was not possible to prevent the powder from caking, and the long-term storage stability of the product was poor.

Example 14 (Acne lotion) (1) Formulation DMOE in the table is dimethylpolysiloxane methyl (polyoxyethylene (20 mol) polyoxypropylene (20 mol)) siloxane polymer (HLB8) (2) Manufacturing method After uniformly dissolving and dispersing components Put it in an aerosol container and attach a predetermined valve while deaerating the upper air with a vacuum pump. Then, the ingredients were press-filled to prepare the acne lotion.

(3) Characteristics The various tests were conducted on the obtained acne lotion, and the results of examining the characteristics are shown in Table 1. As shown in Table 1, the lotion showed good shaking dispersibility, storage stability and practical properties. Especially in terms of practical characteristics, acne holders were selected as testers (20 people) and tested.

As a result, the foam when the cosmetic lotion is ejected from the aerosol container contains precipitated sulfur, and has excellent performance for spotwise applying it to sites such as acne with a fingertip. understood.

As a result of continuous application for 3 weeks, acne healing effect was observed in 16 of 20 people.

Claims (1)

(57) [Claims] 1. A nonionic surfactant having an HLB of 8 or more 0.01 to 5
%, Water-insoluble powder 0.1 to 30% by weight, water 70 to 99% by weight, propellant 1 to 30% by weight, and no oil content.