JP2014185118A - Spray-type cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spray-type cosmetic which has viscosity, provides a thickness feeling at the time of use while providing an excellent runny feeling in appearance, can spread a composition, which is filled, homogeneously and broadly as a mist (fog), and solves problems such as dripping.SOLUTION: A spray-type cosmetic in which a microgel particle composition containing a deacylation type gellan gum and a crosslinker to crosslink it is filled into a container with a mechanism for spraying as a mist state, and a production method of a microgel particle composition to be used therein.

Description

  The present invention relates to a spray-type cosmetic, and more specifically, a spray-type cosmetic capable of spraying a filled composition uniformly in a mist form (mist form) while the physical properties of the cosmetic are viscous. It is about.

  Conventionally, liquid cosmetics are often used as spray-type cosmetics (so-called mist cosmetics) filled in a sprayable container because they are easy to use and have a refreshing refreshing feeling. Spray type cosmetics can be used for various purposes such as lotion, essence, antiperspirant, hair lotion, hair treatment, etc. As spraying methods, pump type atomizer, trigger type sprayer, aerosol type Etc. are known.

  On the other hand, viscous cosmetics are often used to improve merchantability because they have a thick appearance, a rich feeling during use, a moisturizing feeling, and the like. In order to obtain such a viscous cosmetic, a technique for imparting viscosity by intermolecular interaction of the thickener using a thickener such as carboxyvinyl polymer, gellan gum, agar, Techniques for imparting viscosity by creating fine microgel particles using carrageenan, gelatin, sodium alginate or the like are known (Patent Documents 1 to 3). However, conventionally, when high-viscosity cosmetics are sprayed in a pump-type atomizer or the like, the nozzles of the container are clogged or even if sprayed, the mist is not spread widely and uniformly, and the droplets are larger. There was a problem of becoming.

  By the way, as a technique capable of spraying a viscous composition in a mist form, Patent Document 4 discloses a technique related to an oral composition. However, in the mouthwash or liquid dentifrice that is a composition for the oral cavity, the spraying object is limited to the oral cavity, and it is not a problem that uniform spraying or large droplets themselves are, The cosmetics used on the skin and hair are completely different in the object and purpose of use, and the functions and feel required for the skin and hair cannot be realized.

  Patent Document 5 describes that a viscous retouching cosmetic is applied in the form of a mist. This is intended to maintain the makeup effect of the retouching part and the adhesion of the foundation to the skin. However, mist diffusion and droplets in a relatively wide range were not directly problematic.

JP 2005-82527 A JP 2001-342451 A JP 2000-119166 A JP 2005-104966 A JP2012-201659

  Therefore, the object of the present invention is to have a viscous and thick appearance, and to have a rich feeling during use, and to uniformly spread the filled composition as a mist (mist) over a wide range. It is possible to provide a spray-type cosmetic that eliminates problems such as dripping.

  In view of such a situation, the present inventors have conducted intensive studies. As a result, when a microgel particle composition obtained by gelling deacylated gellan gum with a cross-linking agent and then disintegrating and refining is used in a spray-type cosmetic, It has been found that it is sometimes possible to produce a fine and uniform mist and that the mist has excellent diffusibility, and the present invention has been completed.

  That is, the present invention provides a spray-type cosmetic characterized by filling a container having a mechanism for spraying in the form of a mist with a microgel particle composition containing a deacyl gellan gum and a cross-linking agent for cross-linking the gellan gum. It is to provide.

  Furthermore, the present invention provides a microgel particle composition in which a deacylated gellan gum is dissolved in an aqueous solvent, and a gelling agent is added to the solution to crosslink the deacylated gellan gum. The manufacturing method of the spray type cosmetics including the process to be provided is provided.

  The spray-type cosmetic composition of the present invention has a viscous composition, has a thick feeling in appearance, and has a high merchantability without a thick feeling during use or a polymer twist. Droplets can be generated and sprayed uniformly over a wide range. Therefore, it can be used as a new type of cosmetic that is used by spraying on the skin or hair.

Hereinafter, the present invention will be described in detail.
The spray type cosmetic of the present invention is obtained by filling a container having a mechanism for spraying a microgel particle composition formed from deacylated gellan gum and a crosslinking agent into a mist form.

The deacyl gellan gum used in the spray cosmetic of the present invention is a polysaccharide produced by Sphingomonas elodea , which is a polysaccharide produced by Sphingomonas elodea. The glyceryl group is removed. This is already commercially available as Kelco Gel (manufactured by CP Kelco), and forms a hard and brittle gel and has the characteristics of heat resistance and acid resistance.

  As a crosslinking agent that forms a gel by crosslinking the deacylated gellan gum, a compound that generates metal ions in an aqueous solution can be used. The compound that generates a polyvalent metal ion is preferably a salt having a divalent cation and present as a cation in a solvent such as calcium salt and magnesium salt, such as calcium chloride, calcium glutamate, calcium lactate. , Calcium citrate, calcium hydroxide, magnesium chloride, and magnesium sulfate. Among these, calcium chloride is preferable for use from the viewpoint of gel strength. It is also possible to add a compound that generates a monovalent metal ion. For example, sodium chloride or potassium chloride can be used. These may be used alone or in combination of two or more as the crosslinking agent.

  In the present invention, a microgel particle composition is produced by allowing a cross-linking agent to act on the deacylated gellan gum. However, the amount of deacylated gellan gum used at that time is not particularly limited, and is a mist when sprayed. From the viewpoint of fineness and diffusibility, it is preferably 0.05 to 5% by mass (hereinafter, simply referred to as “%”) in the microgel particle composition of the spray-type cosmetic. % Is more preferable.

  Moreover, although the usage-amount of a crosslinking agent changes with the density | concentrations of deacyl type | formula gellan gum, it is preferable to contain 0.005-0.5% in the microgel composition of spray type cosmetics, More preferably, 0.01% ~ 0.1%.

  Further, the content ratio of the crosslinking agent to the deacylated gellan gum (crosslinking agent / deacylated gellan gum) is preferably 0.005 to 1, more preferably 0.05 to 0.5.

  The microgel particle composition used in the spray-type cosmetic composition of the present invention is obtained by gelling with the deacylated gellan gum and a crosslinking agent, and then disintegrating and refining the gelled product. For example, after deacylated gellan gum is dissolved in an aqueous solvent, for example, water, glycols such as 1,3-butylene glycol, and a mixture thereof, a crosslinking agent is added to the solution and gelled. Is done.

  Moreover, the refinement | miniaturization method in particular of the gelled material obtained above is not restrict | limited, What is necessary is just to use the apparatus which can give the shear force which disintegrates and refine | miniaturizes a gel. Specifically, the gelled product may be refined using a known homogenizer, disper, mixer, or the like. At this time, the average particle diameter of the microgel particles can be adjusted by appropriately changing the strength for collapsing the gel. Specifically, in order to obtain microgel particles with a fine particle size, the gel may be sufficiently disintegrated by high-speed stirring, while to obtain a large particle size, the disintegration strength may be weakened. The micronization is performed by applying a shearing force after the gel formation is completed, or by applying a shearing force during cooling that promotes gelation. It is preferable from the viewpoint of the uniformity of the particle size of the microgel that the gelation is performed after the gelation is completed. On the other hand, the time required for production can be shortened by applying a shearing force during cooling that promotes gelation.

  The average particle size of the microgel particles obtained in this manner is preferably 0.05 to 1000 μm, and 1 to 500 μm is more preferable from the viewpoint of coexistence of a thick appearance and good mist diffusibility. The average particle size is a value measured with a stock solution of the microgel particle composition using a laser diffraction / scattering particle size distribution analyzer LA-910 (manufactured by Horiba Seisakusho).

  In producing the microgel particle composition used in the present invention, a thickening polymer may be further added. That is, when the deacylated gellan gum is dissolved in an aqueous solvent, a thickening polymer may be included and then gelled with a crosslinking agent. By adding a thickening polymer, the appearance uniformity and stability over time are improved. The content ratio of the thickening polymer to the deacylated gellan gum (thickening polymer / deacylated gellan gum) is preferably 0.001-1, and more preferably 0.005-0.5. Although the thickening polymer is not particularly limited, specific examples include non-disintegrating polysaccharides such as xanthan gum, native gellan gum, guar gum, and roast bean gum, carboxyvinyl polymers and neutralized salts thereof, acrylic acid / methacrylic acid Examples thereof include acid alkyl copolymers.

  In addition, the microgel particle composition may contain an oil agent having a molecular weight of 400 or more which is excellent in emollient and an oil agent having a molecular weight of less than 400 which is excellent in penetrating feeling and skin familiarity. Examples of the oil agent having a molecular weight of 400 or more include glyceryl tri-2-ethylhexanoate, oleyl oleate, squalane and the like. Examples of the oil agent having a molecular weight of less than 400 include 2-octyldodecanol, propylene glycol dicaprate, ethyl oleate, and the like. By containing these oil agents in the microgel particle composition, the spray-type cosmetic composition of the present invention has a better moisture feeling when applied to the skin.

  Furthermore, the microgel particle composition can further contain an optional component in addition to the above components, if necessary. Examples of the optional components include pH adjusters, ultraviolet absorbers, surfactants, oils, vitamins, cosmetic ingredients, moisturizers, fragrances, bactericides, antioxidants, and the like. Can do.

  The thus-obtained microgel particle composition has a viscosity at 25 ° C. of 500 to 20000 mPa · s, and preferably 1000 to 15000 mPa · s, more preferably from the viewpoint of coexistence of thickness of appearance and good mist diffusibility. Is 2000 to 10000 mPa · s. In addition, the viscosity was rotated for 24 minutes at a speed of 60 rotations per minute using a single cylinder rotary viscometer (manufactured by Shibaura System Co., Ltd.) that was left in a constant temperature bath at 25 ° C. for 24 hours. It means the value obtained by reading the measured value and multiplying by each multiplier.

  The container having a mechanism for spraying in the form of a mist filled with the above-described microgel particle composition is not limited as long as the microgel particle composition can be sprayed in a mist form (mist form), for example, Pump type atomizer type, trigger type, aerosol type, etc. can be used. The present invention is excellent in that uniform spraying is possible even in a pump-type atomizer type in which uniform spraying is difficult when a cosmetic material with high viscosity is filled.

  The spray-type cosmetics of the present invention produced as described above can be used for applications such as lotions, cosmetic liquids, antiperspirants, sunscreens, foundations, hairdressing agents and the like. The application location includes face, body skin, hair and the like.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited to these Examples.

Examples 1-8 and Comparative Examples 1-4
Spray type cosmetics:
The spray type cosmetics of Examples 1 to 8 shown in Table 1 and Comparative Examples 1 to 4 shown in Table 2 were produced by the following production method. The resulting spray-type cosmetics were evaluated for "stability", "no polymer twist", "dense feeling during use", "fineness of fog (uniformity)", and "mist diffusibility". did.

(Production method)
A: Components 3 to 6 are heated at 75 ° C. and mixed and dissolved.
B: Components 7 to 9 heated to 75 ° C. are added to A and mixed.
C: Components 10 to 12 are added to B and mixed.
D: Components 1 and 2 are added to C and mixed, and then cooled to 20 ° C.
E: D is stored at 25 ° C. and gelled.
F: A shear force is applied to E with a disper to make it finer.
G: F was taken out and filled in an atomizer equipped with a sprayable pump type nozzle to obtain a spray-type cosmetic. The atomizer used this time is a pump-type atomizer (Z-155-29-1- (PCV513-8-0), manufactured by Mitani Valve Co., Ltd.).
Components 4, 5, 10 and 11 were prepared by mixing BG (1,3-butylene glycol) and each polymer in advance and then adding purified water heated to 75 ° C.

(Evaluation method)
(1) Stability, (2) Absence of polymer twist, (3) Thickness when used, (4) Fineness of fog (uniformity), (5) Fog diffusibility evaluation items Evaluation was performed according to the evaluation criteria.

(1) Stability: Stored in a thermostatic bath at 50 ° C. for 1 month and evaluated for drainage by visual observation.
<Evaluation criteria>
◎: No change in state ○: Slight drainage was confirmed △: Significant drainage was confirmed ×: Significant drainage was confirmed, and a precipitate that did not redisperse even when the container was shaken was generated

(2) Abnormality of polymer: Degree of polymer deviation that occurs after spraying and applying the spray-type cosmetics of Examples and Comparative Examples to the face after washing using a 20-person panel specializing in cosmetics evaluation. Evaluated.
<Evaluation criteria>
5 points: There was no twist 4 points: I did not see my eyes, but when I touched it with my fingers, I felt a slight roughness. 3 points: A slightly visible twist occurred, but it disappeared as soon as I became more familiar with it. I did not care 2 points: A twist occurred, and polymer agglomerates remained on the face 1 point: A large amount of agglomeration occurred, and a large amount of polymer agglomerates remained on the face

(3) Thickness at the time of use: 20 types of cosmetic evaluation specialized panels were used, and the spray-type cosmetics of Examples and Comparative Examples were sprayed on the face after face washing to evaluate the richness at the time of use.
<Evaluation criteria>
5 points: Very good 4 points: Good 3 points: Normal 2 points: Slightly insufficient 1 point: Insufficient

Judgment of the lack of twist of the polymer and the richness at the time of use was carried out according to the following criteria based on the evaluation score.
<Judgment>
◎: 4.5 points or more
○: 3.5 points or more and less than 4.5 points △: 2.5 points or more and less than 3.5 points ×: Less than 2.5 points

(4) Fineness of fog (uniformity): The spray type cosmetics of the examples and comparative examples were sprayed from a height of 20 cm toward the black color paper on the desk, and the size of the droplets remaining on the paper Evaluated by number. In addition, evaluation was implemented based on the average value of 3 times of spraying.
<Evaluation criteria>
A: The number of droplets having a diameter of 3 mm or more was 5 or less, and fine droplets were uniformly present. ○: Although there were 5 to 20 droplets having a diameter of 3 mm or more, in other portions. Were fine droplets uniformly △: 20 or more droplets having a diameter of 3 mm or more existed, but fine droplets were uniformly present in other portions. ×: Most droplets were 3 mm in diameter In addition, the size of the droplets was not uniform.

(5) Mist diffusibility: The spray type cosmetics of Examples and Comparative Examples were sprayed from a height of 20 cm toward a black color drawing paper placed on a desk, and evaluated by the diameter of the sprayed area. In addition, evaluation was implemented based on the average value of 3 times of spraying.
<Evaluation criteria>
◎: 20 cm or more ○: 10 cm or more and less than 20 cm △: 5 cm or more and less than 10 cm ×: less than 5 cm

  From this result, the spray type cosmetics of Examples 1 to 8 are all good in stability, lack of polymer twist, thick feeling during use, fineness of mist (uniformity), and diffusibility of mist. Met. On the other hand, Comparative Example 1 containing native gellan gum instead of deacylated gellan gum is inferior in mist fineness (uniformity) and mist diffusibility, and comparative example containing carrageenan and sucrose instead of deacylated gellan gum No. 2 had poor stability, high polymer twist, and very fine fog (uniformity) and fog diffusibility. In Comparative Example 3 containing no crosslinking agent, since the deacylated gellan gum does not crosslink, the thick feeling and stability during use are particularly inferior, and the Comparative Example 3 is a comparative example in which the content of the deacylated gellan gum is increased. Although the increase in viscosity was observed in No. 4, polymer twist occurred, and the effect on the fineness of the mist (uniformity) and the diffusibility of the mist was poor.

Example 9
Spray lotion:
A spray-type lotion was produced according to the following formulation and production method.
(Prescription) (%)
(1) Polyoxyethylene (20 mol) Polyoxypropylene (6 mol) Decyl tetradecyl ether 0.2
(2) Methyl paraoxybenzoate 0.1
(3) Ethanol 12.0
(4) Glyceryl tri-2-ethylhexanoate 0.05
(5) Ethyl oleate 0.01
(6) Perfume 0.04
(7) Deacylated gellan gum 2% (BG 20% aqueous solution) 12.0
(8) Dipropylene glycol 5.0
(9) Purified water 40.0
(10) Calcium chloride 0.04
(11) Purified water 1.0
(12) Xanthan gum 1% (BG 20% aqueous solution) 1.0
(13) Purified water remaining

(Manufacturing method)
A: Components 7 to 9 are heated at 75 ° C. and mixed and dissolved.
B: Components 10 and 11 heated to 75 ° C. are added to A and mixed.
C: Components 12 and 13 are added to B and mixed.
D: Components 1 to 6 are added to C and mixed, and then cooled to 20 ° C.
E: D is stored at 25 ° C. and gelled.
F: A shear force is applied to E with a disper to make it finer.
G: F was taken out and filled in an atomizer equipped with a sprayable pump type nozzle to obtain a spray-type lotion.

  The obtained spray-type lotion was excellent in stability, had no polymer twist, had a rich feeling during use, and was excellent in uniform sprayability and diffusibility of mist. Furthermore, it was excellent in a moist feeling when applied to the skin and retouching, and had a uniform appearance.

Example 10
Spray sunscreen:
A spray-type sunscreen was prepared according to the following formulation and manufacturing method.
(Prescription) (%)
(1) 2-Ethylhexyl p-methoxycinnamate 7.0
(2) Diethylaminohydroxybenzoyl hexyl benzoate 2.0
(3) Bisethylhexyloxyphenol methoxyphenyl triazine 2.0
(4) Polyoxyethylene (30 mol) phytosterol 0.2
(5) Polyoxyethylene (5 mol) phytosterol 0.1
(6) Deacylated gellan gum 2% (BG 20% aqueous solution) 12.0
(7) Dipropylene glycol 5.0
(8) Purified water 40.0
(9) Calcium chloride 0.04
(10) Purified water 1.0
(11) Xanthan gum 1% (BG 20% aqueous solution) 1.0
(12) Phenylimidazolesulfonic acid 2.5
(13) Triethanolamine 1.4
(14) Purified water remaining amount (15) Ethanol 12.0
(16) Perfume 0.04

(Manufacturing method)
A: Components 6 to 8 are heated at 75 ° C. and mixed and dissolved.
B: Components 1 to 5 heated to 75 ° C. are added to A and emulsified.
C: Components 9 and 10 are added to B and mixed.
D: Components 11 to 16 are added to C and mixed, and then cooled to 20 ° C.
E: D is stored at 25 ° C. and gelled.
F: A shear force is applied to E with a disper to make it finer.
G: F was taken out and filled in an atomizer equipped with a sprayable pump type nozzle to obtain a spray type sunscreen.

  The resulting spray-type sunscreen has superior sprayability and diffusibility of mist compared to existing spray-type sunscreens, and is a uniform makeup film on the skin with no stickiness. It was a mold sunscreen.

Example 11
Spray sunscreen:
A spray-type sunscreen was prepared according to the following formulation and manufacturing method.
(Prescription) (%)
(1) 2-Ethylhexyl p-methoxycinnamate 7.0
(2) Diethylaminohydroxybenzoyl hexyl benzoate 2.0
(3) Bisethylhexyloxyphenol methoxyphenyl triazine 2.0
(4) Fine particle titanium oxide 1.0
(5) Polyoxyethylene (30 mol) phytosterol 0.2
(6) Polyoxyethylene (5 mol) phytosterol 0.1
(7) Deacylated gellan gum 2% (BG 20% aqueous solution) 15.0
(8) Dipropylene glycol 5.0
(9) Purified water 40.0
(10) Calcium chloride 0.04
(11) Purified water 1.0
(12) (Acrylates / alkyl acrylate (C10-30)) Crosspolymer 1% (BG 20% aqueous solution) 2.0
(13) Sodium hydroxide 0.35
(14) Purified water remaining amount (15) Ethanol 12.0
(16) Perfume 0.04

(Manufacturing method)
A: Components 7 to 9 are heated at 75 ° C. and mixed and dissolved.
B: Components 1 to 6 heated to 75 ° C. are added to A and emulsified.
C: Components 10 and 11 are added to B and mixed.
D: Components 12 to 16 are added to C and mixed, and then cooled to 20 ° C.
E: D is stored at 25 ° C. and completely gelled.
F: A shear force is applied to E with a disper to make it finer.
G: F was taken out and filled in an atomizer equipped with a sprayable pump type nozzle to obtain a spray type sunscreen.

  The resulting spray-type sunscreen has superior sprayability and diffusibility of mist compared to existing spray-type sunscreens, and is a uniform makeup film on the skin with no stickiness. It was a mold sunscreen.

The spray-type cosmetic of the present invention is viscous in the filled microgel particle composition, has a thick appearance, and is excellent in stability during storage. Things become fine mist and are uniform and have good diffusivity. Therefore, the spray type cosmetic of the present invention can be widely used in the cosmetic field used for skin and hair.

that's all

Claims (8)

  A spray-type cosmetic comprising a container having a mechanism for spraying in a mist form a microgel particle composition containing a deacyl gellan gum and a cross-linking agent that crosslinks the deacylated gellan gum.   The spray-type cosmetic according to claim 1, wherein the viscosity of the microgel particle composition at 25 ° C is 1000 to 15000 mPa · s.   The spray-type cosmetic according to claim 1 or 2, wherein the crosslinking agent is a compound that generates a polyvalent metal ion in an aqueous solution.   The spray cosmetic according to any one of claims 1 to 3, wherein the average particle size of the microgel particles in the microgel particle composition is 0.05 to 1000 µm.   The spray type cosmetic according to any one of claims 1 to 4, wherein the microgel particle composition further contains a thickening polymer.   The spray-type cosmetic according to claim 5, wherein the content ratio of the thickening polymer to the deacylated gellan gum is 0.001-1.   The spray-type cosmetic according to any one of claims 1 to 6, which is sprayed on the skin in the form of a mist.   Spraying comprising the steps of dissolving deacylated gellan gum in an aqueous solvent, adding a cross-linking agent for crosslinking the deacylated gellan gum to the dissolved solution, gelling, and refining the gelled product into a microgel particle composition A method for producing a mold cosmetic.