JP4156345B2 - Aerosol composition for foamy fragrance - Google Patents

Description

【００１８】
【表２】

【００１９】
【実施例】
次に下記のような泡沫状芳香剤用エアゾール組成物を調整し、評価した。本実施例に用いた高吸油性粉体の吸油量はＪＩＳ Ｋ ５１０５ 顔料試験方法 吸油量の項目に準じて測定した。
【表３】

【００２０】
【発明の効果】
本発明は匂い立ちがよく、かつある程度安定した泡沫が得られ、かつ泡沫が消失もしくは香料が揮散した後の残物が少量および除去しやすいという残物の処理性に優れた泡沫状芳香剤用エアゾール組成物である。[0001]
[Industrial application fields]
The present invention has a good odor and a foam with a certain degree of stability, and a small amount of residue after the foam has disappeared or the fragrance has been volatilized. It is an aerosol composition for air fresheners.
[0002]
[Prior art]
In recent years, a wide variety of fragrances have been developed due to the scent boom such as aromatherapy. Typical examples are gel-type stationary fragrances and liquid spray fragrances, but gel-like fragrances have a small surface area that emits odors and have poor smell. Liquid spray fragrances are sprayed in the air and thus have a good odor. However, since they have high volatility, the odor persistence is poor.
Therefore, a foamy fragrance can be raised as a dosage form having a good odor and having a certain degree of fragrance persistence. By making it into a foam, the surface area that emits the odor can be increased, and the odor persistence until the foam disappears can be expected. Normal foam aerosol products, such as foam hairdressing agents, do not place importance on foam stability because the product is used for a short time, but the target fragrance has a significant surface area that emits an odor when the foam disappears. Since it decreases, the stability of the foam for about 1 hour to 2 days is required.
[0003]
[Problems to be solved by the invention]
Therefore, conventionally, aerosol compositions for foamy fragrances containing a relatively large amount of fatty acid soap, nonionic surfactant and higher aliphatic alcohol (see Patent Document 1) have been developed. There are a lot of residues when it disappears or the fragrance is volatilized, and the low-volatile fragrance remains and is not beautiful. Such a foamy fragrance is usually sprayed into a container such as glass, earthenware, or porcelain, and used in any desired place. When the foam disappears or the fragrance is volatilized, the residue needs to be removed from the container when used again. Therefore, it is desired that a foam that is stable to some extent is obtained, the foam disappears, or the residue after the fragrance is volatilized is small and easy to remove.
[0004]
[Patent Document 1]
JP 63-249666
[0005]
[Means for Solving the Problems]
In view of the above matters, the present inventors have conducted extensive research, and as a result, fatty acid soap 0.5 to 5% by weight, higher aliphatic alcohol, nonionic surfactant, carboxyvinyl polymer 0.01 to 0.5% by weight. %, Oil- absorbing powder of 40 ml / 100 g or more, highly water- absorbing powder, water-soluble or water-dispersible resin containing resin and fragrance that form a film when dried , and the residue after foam disappears And invented an aerosol composition for foamy fragrance, which is easy to remove .
[0006]
Hereinafter, the configuration of the present invention will be described in detail. The fatty acid soap of the present invention is not particularly limited, but preferably comprises one or more fatty acids having 12 to 22 carbon atoms. Examples of fatty acids constituting the fatty acid soap include myristic acid, palmitic acid, stearic acid, and isostearic acid. Examples of the alkali salt of the counter ion include sodium salt, potassium salt, and triethanolamine salt. And 1 type or 2 types or more may be mixed and used. The compounding quantity of the fatty acid soap in this invention is 0.5 to 5 weight%, Preferably it is 1 to 3 weight%. If it is less than 0.5% by weight, the stability of the foam is not sufficient, and if it exceeds 5%, there is a large amount of residue.
[0007]
Nonionic surfactants are used together with fatty acid soaps for foam formation, propellant emulsification, and the like. Examples of nonionic surfactants include polyoxyethylene alkyl ether, polyoxyethylene hydrogenated castor oil, coconut oil fatty acid diethanolamide, and glycerin monostearate. The blending amount is not particularly limited, but is preferably 1 to 5% by weight. When the blending amount exceeds 5% by weight, there is much residue.
[0008]
Higher fatty alcohols together with fatty acid soaps strengthen the foam interface and stabilize the foam. Those having the same or close carbon number as the fatty acid used are preferred. The blending amount is not particularly limited, but is preferably 0.2 to 5% by weight.
[0009]
Since the carboxyvinyl polymer, which is an aqueous thickener , increases the stability of the foam, the amount of fatty acid soap can be reduced, so the amount of residue when the foam disappears can be reduced. The blending amount of the carboxyvinyl polymer is 0.01 to 0.5% by weight with which a high viscosity can be obtained with a small amount, but 0.05 to 0.3% by weight is more preferable. If the amount is less than 0.01% by weight, the foam stabilization effect cannot be obtained. If the amount exceeds 0.5% by weight, the composition has a high viscosity, and the fluidity after filling the container together with the propellant is poor. There is.
[0010]
High oil-absorbing powder means that the oil absorption is 40 ml / 100 g or more, more preferably 100 ml , depending on the particle shape such as reducing the particle size of the powder, increasing the specific surface area by making the surface porous, or encapsulating. / in powder increased above 100 g, it solidifies the residue was adsorbed low volatility of the perfume which remains during foam disappearance. Examples of the highly oil-absorbing powder include porous silica, fine particle silica, porous cellulose powder, fine particle titanium oxide, magnesium carbonate, and fine particle nylon powder. Preferred are porous silica and fine particle silica. Since the highly oil-absorbing silica gels after oil absorption, the residue is easily solidified in a small amount. The blending amount is not particularly limited, but is adjusted depending on the amount of the low volatile component of the used fragrance and the oil absorption amount of the powder used. Preferably it is 0.1 to 5 weight%. If it is less than 0.1% by weight, the effect cannot be obtained, and if it exceeds 5% by weight, there is a lot of residue, and the viscosity of the composition increases and the fluidity after filling into the container together with the propellant is poor. is there.
[0011]
Resin that forms a film upon drying when it is water-soluble or dispersible in an aqueous base material solidifies the residue when foam disappears, making it easier to remove from the ejected container, for example, polyvinyl acetate, polyvinyl pyrrolidone, polyvinyl alcohol, polyacrylic acid Examples thereof include ethyl, polyethyl methacrylate, polystyrene and the like and copolymers thereof. Although a compounding quantity is not specifically limited, It adjusts with the amount of residues at the time of foam disappearance.
[0012]
A fragrance refers to a natural fragrance, a synthetic fragrance or a mixture thereof. The blending amount is not particularly limited, but is preferably 0.5 to 20% by weight. If it is less than 0.5% by weight, it is not functionally sufficient as a fragrance, and if it exceeds 20% by weight, it is difficult to form a stable foam.
[0013]
In addition to the above-mentioned essential components, the foamy fragrance composition of the present invention suitably contains any various components such as thickeners, preservatives, pigments, dyes, powders, pH adjusters, ultraviolet absorbers, etc. can do.
[0014]
As a propellant for foaming the aerosol composition for a foamy fragrance of the present invention, a propellant used for a normal aerosol, for example, a liquefied gas (LPG) which is a mixture of propane and butane, isopentane And dimethyl ether, which can be used alone or in combination.
[0015]
[Experimental example]
The following foamy fragrance compositions were prepared and evaluated. As evaluation methods, the following items were evaluated with respect to the stability of foam and the ease of removal of residues.
[0016]
Evaluation index Foam state: The aerosol container was filled with a sample together with a propellant (LPG), sprayed onto a glass plate, and the state of the foam was observed. ◎: Foam is fine and elastic (swelling) ○: Foam is formed and elasticity (swelling) is present Δ: Foam is formed ×: Foam is not formed Stability of foam: A sample is filled in an aerosol container together with a propellant (LPG), glass Ejected into a measuring cylinder, the amount of foam was determined after 8 hours and 24 hours, and the stability of the foam was evaluated according to the following criteria. A: The amount of foam was maintained at 80 to 100%. The amount of foam is maintained 60-79%. Δ: The amount of foam is maintained 40-59%. X: The amount of foam is maintained 0-39%. Fill the sample with propellant (L.P.G.), spray onto the glass plate, 72 hours After removal (foam disappearance), when the residue was removed, the shape of the residue and the degree of peeling from the glass plate were evaluated according to the following criteria: ◎: The residue was solidified and easily removed from the glass plate A: The residue was solidified and could be easily removed from the glass plate, but a small amount of residue remained on the glass plate. Δ: The residue was solidified but removed from the glass plate. *: The composition shown in Tables 1 and 2 in which the residue is not solidified can be easily prepared by heating and stirring each raw material and cooling.
[0017]
[Table 1]

[0018]
[Table 2]

[0019]
【Example】
Next, the following aerosol compositions for foamy fragrance were prepared and evaluated. The oil absorption of the highly oil-absorbing powder used in this example was measured according to the item of JIS K 5105 Pigment Test Method Oil Absorption.
[Table 3]

[0020]
【The invention's effect】
The present invention is for a foamy fragrance excellent in odor and excellent in the processability of a residue, in which a foam which is stable to a certain extent is obtained, and a small amount of residue after the foam disappears or the fragrance is volatilized and is easy to remove. Aerosol composition.

Claims (4)

Fatty acid soap 0.5 to 5 wt%, higher aliphatic alcohols, nonionic surfactants, carboxyvinyl polymer 0.01 to 0.5% by weight, high oil absorbing powder is oil absorption of 40 ml / 100 g or more, a water-soluble Alternatively, an aerosol composition for a foamy fragrance comprising a resin and a fragrance that can be dispersed in an aqueous substrate and that forms a film upon drying , and the residue after the foam disappears is solidified and easily removed object Foamy fragrance for aerosol composition of claim 1, high oil absorbing powder is characterized in that it is a silica One or a resin selected from polyvinyl acetate, polyvinyl pyrrolidone, polyvinyl alcohol, polyethyl acrylate, polyethyl methacrylate, polystyrene, and copolymers thereof, which is a resin that can be dispersed in a water-soluble or aqueous substrate and forms a film upon drying. The aerosol composition for foamy fragrance according to any one of claims 1 to 2, wherein there are two or more kinds The aerosol for foamy fragrance according to any one of claims 1 to 3, wherein the resin that forms a film upon drying, which can be dispersed in a water-soluble or aqueous substrate, is an acrylic acid / methacrylic acid copolymer. Composition