JPH10170A - Extract-contained foamed body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an extract-contained foamed body capable of holding the effect of an extract blended therein for a long period by forming the extract of the extract-contained foamed body as a composite enclosed by cyclodextrin. SOLUTION: An extract-contained foamed body is formed of a foamed body such as cellulose sponge containing various extracts by impregnation, and the extract is enclosed by cyclodextrin, coated with fat and oil so as to be gradually released from the foamed body such as cellulose sponge. As the foamed body, cellulose sponge of natural material is preferred. Examples of the extract to be used include natural extracts such as rice bran extract, white-cedar essential oil, natural aromatic extract, and deodorizing extract, and synthetic aromatic extracts, and the natural extracts soft to the skin are preferably used. The cyclodextrin enclosing such an extract is used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam containing an extract, and more particularly, to a foam containing an extract which is suitably used for aroma and deodorization or for washing, especially a puff for face washing and a bath. The present invention relates to a body-friendly foam for body washing containing an extract which is preferably used as a foam or the like.

[0002]

2. Description of the Related Art Conventionally, foams such as polyurethane foam and cellulose sponge have been used, for example, as a facial cleansing puff. In the case of a foam having poor water absorption such as polyurethane foam, dirt remains as it is used. Sisters,
Further, even in the case of a cellulose sponge having water absorbency, the average cell diameter is generally as large as about 1000 microns, so that it is inferior in feel and elasticity and has a function of simply removing dirt.

[0003] In the case of a bath sponge, sponge, polyurethane foam, cellulose sponge and the like are used. However, in a humid and humid environment in a bath, mold is easily generated on the sponge and the smell. The occurrence of this was also a concern.

On the other hand, JP-A-6-322670 discloses that
Cyclodextrin in which a fat-soluble substance such as squalane or squalene is included is fixed to natural fibers or synthetic fibers to give a moisturizing effect, and by wearing clothing having such a function, drying of the skin is suppressed. A proposal has been made. In Japanese Patent Application Laid-Open No. Hei 7-184823, it is disclosed that an antibacterial agent is supported on a water-permeable support, and that the antibacterial agent is supported on inorganic porous fine particles, cyclodextrin, and organic capsules and blended into the support. A fixture has been proposed. However, they do not disclose that they can be used for uses such as aroma, deodorization, and washing, and particularly that they function for body washing.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a foam containing an extract, which is suitable for aroma, deodorization, washing, etc., and which can sustain the release of the extract and withstand long-term use.

Another object of the present invention is to provide an extract-containing cleaning foam such as a face-washing puff or a bathing foam made of a natural material which is preferably gentle on the skin for cleaning.

Still another object of the present invention is to provide, as a foam for cleaning, a natural material which is gentle on the skin, and gently remove dirt when washing the face to obtain a moist, smooth and moist skin. Moreover, the present invention provides an extract-containing bath foam made of an extract-containing facial cleansing puff that can withstand continuous use and a natural material that is gentle on the skin.

[0008]

The foam containing the extract of the present invention, which achieves the above object, comprises a complex in which the extract is included by cyclodextrin, and preferably, the foam is a cellulose foam. In addition, as the extract, a hardly water-soluble natural extract such as Hiba essential oil or rice bran encapsulated with cyclodextrin is preferably used.

The foam containing the extract of the present invention is suitable for washing, particularly for body washing. When the foam containing the extract of the present invention is used, for example, as a facial cleansing puff, the foam is It is preferable to use a cellulose foam having a cell diameter of 800 μm or less, and when used as a bath foam, a cellulose foam having a cell diameter of 20 mm or less is preferably used. As an extract, rice bran is suitable for a facial cleansing puff, and Hiba essential oil is suitable for a bath foam.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The foam containing an extract of the present invention is a foam such as a cellulose sponge impregnated with various extracts by impregnation or the like, and the extract is subjected to cyclodextrin inclusion processing and coated with a fat or oil. , Is gradually released from a foam such as a cellulose sponge.

The foam used in the present invention is preferably a cellulose sponge made of a natural material. Cellulose sponge is produced using plant fiber from wood and plants such as natural pulp, and is itself known. It is. An example of the manufacturing method is to dissolve chips from wood or the like into fibrous material, treat it with an alkali such as sodium hydroxide, and then add carbonized carbon to make viscose. , Sodium sulfate and the like are mixed to foam and solidify. The degree of foaming can be adjusted by the amount of sodium sulfate or the like used. The foam thus obtained is optionally treated with a bleaching agent or the like.

[0012] In the foam containing the extract of the present invention, the degree of foaming of the cellulose foam can be changed depending on the use. For example, when used as a facial cleansing puff, the foam diameter is preferably about 800 microns or less, more preferably about 500 microns. If the diameter of the foam is too large, the feel for facial cleansing becomes rough.

When the foam containing the extract of the present invention is used as a foam for bath, the foam preferably has an average foam diameter of 50 to 20 mm, more preferably 1000 to 3 mm. Is used. If the average foamed diameter is out of these ranges, the foaming and the lack of foam tend to be inferior, and the feeling in use tends to be inferior.

The extract-containing foam of the present invention is obtained by impregnating such a cellulose foam with various extract components by coating or the like. The extract used in the present invention includes rice bran extract, Hiba essential oil, Natural aromatic extract,
Examples include natural extracts such as deodorant extracts and synthetic perfume extracts. In the present invention, natural extracts that are gentle on the skin, for example for body washing, are most preferably used. These extracts differ in kind, compounding ratio, etc. depending on uses such as aroma, deodorization, and washing.

In the present invention, cyclodextrin (CD) containing these extracts is used. CD is a cyclic oligosaccharide having glucose as a constituent unit, which is obtained by reacting starch with an enzyme-cyclodextrin glucanotransferase. As shown in FIG. 2) in the figure, those linked in seven rings are known as β-CD (3 in the figure), and those linked in eight rings are known as γ-CD (4 in the figure).

[0016] Further, with the aim of improving the solubility of the CD,
A branched CD in which hydrogen of one or more hydroxyl groups of the CD is substituted with at least one of a glucosyl group and a maltosyl group is also applicable in the practice of the present invention. A typical branch CD G ₂ -β-CD (5 in the figure) is also shown in Figure 1. These CDs have a cavity 6 inside.

Such a cyclic CD is hydrophilic on the outside and lipophilic on the inside. Therefore, molecules such as various extracts of water-insoluble and poorly water-soluble substances are wrapped (included) in the cavity 6 to form a homogeneous CD. To form a stable extract solution in the form of a CD inclusion complex. Further, the obtained CD inclusion complex is powdered,
Some of these are further coated with a thermoplastic substance such as a hardened vegetable oil to further improve water resistance and heat resistance. When the CD inclusion complex of the present invention is taken up into a foam such as cellulose and used for body washing, the taken up extract is gradually released and its efficacy lasts for a long time.

In the present invention, the inclusion by the CD is performed as follows. First, a CD powder is dissolved in water, an extract is added thereto, and the mixture is vigorously stirred or shaken. The concentration of the CD is 5 to 100% by weight, preferably 10 to 30% by weight, based on water. The mixing ratio of the CD and the extract is usually 0.01 to 50 times, preferably 0.1 to 10 times as the weight ratio of the extract to the CD. When the extract is added to the aqueous CD solution, the extract may be added as it is, or when the extract is solid, may be added in a state where the extract is dissolved in a small amount of a water-soluble organic solvent such as ethanol. The inclusion reaction is performed by high-speed stirring or shaking, and the stirring or shaking is as vigorous as possible, usually for several seconds to several hours, preferably for 10 to 10 hours.
It may be performed for 60 minutes and divided into several times. In addition,
The clathration reaction temperature is usually 0 to 60 ° C, preferably 15 to 60 ° C.
30 ° C. By this reaction, an aqueous solution containing the CD inclusion complex containing the extract can be obtained.

When the CD inclusion complex of the extract is used in the form of an aqueous solution, it can be used as it is, and when it is used in the form of a powder, the aqueous solution is subjected to ordinary freeze-drying, spray-drying, vacuum drying and the like. Powderize.

[0020] Further, the CD inclusion complex obtained in the form of powder can be used for soybean oil, rapeseed oil, beef tallow, fish oil, gelatin, juran gum, arabia gum, dextrin, oligosaccharide, etc.
Water resistance and heat resistance are obtained by coating oils and fats with mechanochemical methods, spray cooling methods, fluidized-granulation methods, pan coating methods, etc. using oily components, water-soluble components, hot-melt substances, and thermoplastic substances. In particular, those coated with vegetable hardened oil become insoluble in water,
It is also highly safe and, when taken up in cellulose foam and used for washing, has a longer lasting effect.

Next, a facial cleansing puff according to one embodiment of the present invention will be described. In the case of a puff for facial cleansing, as described above, 100 parts by weight of the cellulose foam having a fine foam diameter,
D. The extract clathrated with D is preferably from about 0.1 to about 1
0 parts by weight, and an extract composition containing about 0.5 to about 3 parts by weight of a binder such as a polyurethane resin. If the extract is too small, the effect is poor.

The method for producing the foam with an extract of the present invention is illustrated in FIG. After preparing an extract composition adjusted with water and clathrated with cyclodextrin as described above, impregnating this with a cellulose foam and squeezing the foam, drying the foam with the extract impregnated, Depending on the situation, press and punch into an appropriate shape, or cut and fleece and finish to obtain a facial cleansing puff. When the obtained facial cleansing puff is used for facial cleansing, it is immersed in water to restore its compressed shape and can be used for facial cleansing.

As described above, the puff for facial cleansing is made of a natural material which is excellent in elasticity and feel and has good water retention by using a cellulose foam which is a natural material and suppressing the bubble diameter to a minute value. By blending the natural extract with the cellulosic foam, it becomes a moisturizing puff for facial cleansing. The cyclodextrin processing of the extract facilitates the impregnation of the extract into the cellulose foam, and the effect is sustained for a long period of time since the extract is gradually released at the time of use when used.

In the case of a foam for a bath, 100 parts by weight of the cellulose foam is preferably used, for example, about 0.1 to about 10 parts by weight of a Hiba essential oil cyclodextrin product, and about 50 to about 100 parts by weight of a wetting agent. Part of the extract composition is blended. In the case of a foam for bath, it can be obtained by impregnating an extract composition dissolved in water with a cellulose foam and squeezing the solution. Since the foam for bathing is constituted in this way, since it is made of cellulose which is a natural material, the foaming is good and the foaming is good and the skin feels good and there is no irritation to bare skin. In addition, since a natural extract that is hardly soluble in water is included by inclusion with cyclodextrin and blended, it is excellent in fungicide and deodorant effects, and its effect for long-term use is maintained.

The foam with an extract of the present invention is not limited to the foam for body washing such as the above-mentioned puff for face washing and the foam for bathing. For example, the foam for washing a kitchen in a house, a deodorant insole, and an aroma. It is suitably applied to agents and the like.

Hereinafter, the present invention will be described specifically with reference to Examples, but the present invention is not limited to these Examples.

[0027]

【Example】

(Example 1) Viscose composed mainly of natural pulp (dissolved pulp made from North American hemlock) was mixed with sodium sulfate decahydrate and foamed to obtain a cellulose foam having an average cell diameter of 500 microns. Obtained. In addition, the branch CD30
%, Α, β, γ mixed CD60%, and oligosaccharide 10%
The rice bran extract was subjected to cyclodextrin processing (rice bran extract: CD = 1: 9) and coated with an oil or fat to produce a cyclodextrin clathrated rice bran extract.

Next, 1 part by weight of the cyclodextrin clathrated rice bran extract and 0.5 part by weight of a binder (trade name: Riken Resin R-93-5, manufactured by Mikiriken) were added to 9 parts of water.
The extract was dissolved in 8.5 parts by weight to prepare an extract impregnating liquid. After the cellulose foam is immersed and impregnated in the extract compound solution, water is squeezed with a squeezing roll (CD extract: 2%), and the extract-impregnated cellulose foam is dried at 40 ° C. for 10 hours, and then 20 kg / cm ^2. And pressed into an appropriate size to produce a face wash puff. The rice bran extract contained 0.2% by weight of the cellulose foam.

Return the face wash puff to its original state with water,
When ten people were used for face washing, the result of the sensory test that all were excellent in touch elasticity and moist was obtained.

Further, the residual amount of γ-oryzanol in this rice bran extract-containing cellulose foam was measured by washing with water according to JIS-L 0217.103.
As shown in the following Table 1, even after 100 times of water washing, the remaining amount of γ-oryzanol was almost half.

[0031]

[Table 1]

(Example 2) Branched CD 30%, α, β, γ
Using a CD consisting of 60% of mixed CD and 10% of oligosaccharide, Hiba essential oil was subjected to cyclodextrin processing (Hiba essential oil: CD = 1: 9), and coated with oil to produce cyclodextrin-embedded Hiba essential oil. Next, 2.5 parts by weight of this cyclodextrin clathrated hiba essential oil and 30 parts by weight of diethylene glycol (wetting agent) were added to 67.5 parts of water.
The extract was dissolved in parts by weight to prepare an extract impregnating liquid. A cellulose foam having an average foaming diameter of about 2,000 microns is immersed and impregnated in this extract compound solution, squeezed with a squeezing roll (CD extract: 5%), and cut into an appropriate size to produce a foam for an extract-containing bath. did.

The foam for a cellulose bath containing the extract is
When ten people used it for one month, all of them had excellent touch elasticity and did not generate odor or mold.

The antibacterial property of the foam for a cellulose bath was measured by a test method for evaluating the effect of processing sanitary products (a shake flask method). As shown in Table 2 below, the sterilization rate was obtained even after washing 10 times. Was 50% or more.

[0035]

[Table 2]

(Example 3) Lavender extract and 1-
The menthol oils were each subjected to inclusion processing with cyclodextrin (homogenization at a blending ratio of CD: branched CD: lavender extract = 6: 3: 1), coated with an oil or fat, and obtained two kinds of extracts encapsulated with cyclodextrin. . 3 parts by weight of the obtained extract and 30 parts by weight of diethylene glycol (wetting agent) were dissolved in 67 parts by weight of water to prepare an extract impregnating liquid. A cellulose foam having an average foam diameter of about 2,000 microns is immersed and impregnated in the extract impregnating solution, squeezed with a squeezing roll (CD extract: 6%), cut into an appropriate size, and cut into an appropriate size with lavender-containing cellulose foam. A body and a cellulose foam containing l-menthol oil were produced.

The lavender-containing cellulose foam is
It is excellent in sustained release of lavender-hage fragrance, has a very long life, and at the same time has the effect of preventing the generation of bad smell and mold due to the antibacterial and deodorant properties of the herbal solution. Moreover, the cellulose foam containing l-menthol oil had a refreshing feeling due to menthol, and the cooling feeling was very long-lasting due to the inclusion of CD.

[0038]

According to the present invention, it is possible to obtain a foam in which the effect of the blended extract is maintained for a long time. In particular, for washing, a foam containing an extract for body washing such as a facial cleansing puff with good foaming and good foam removal, a bath sponge, etc. is obtained, and the facial cleansing puff is excellent in feel, elasticity and moisturizes the bare skin with a natural extract. It can be used for a long period of time because the natural extract is continuously released.
In addition, the bath sponge is excellent in feel and elasticity to the skin, and the deodorant, antifungal, and antibacterial effects are maintained by continuous release of natural hiba essential oil. In addition, there is no irritation to the bare skin, and an effect on atopic disease is expected.

Further, since the foam for body washing according to the present invention can be composed of a natural material, it is easy to dispose after use, has no environmental problems such as pollution, and is environmentally friendly.

[Brief description of the drawings]

FIG. 1 is a plan view showing the structure of cyclodextrin.

FIG. 2 is a process chart for explaining an example of a manufacturing process of the foam for body washing of the present invention.

[Explanation of symbols]

1 ··· Glucose 2 ··· α-cyclodextrin 3 ··· β-cyclodextrin 4 ··· γ-cyclodextrin 5 ··· G ₂ -β-cyclodextrin 6 ··· Cavity

Claims (9)

[Claims] 1. A foam containing an extract, wherein the extract is a complex encapsulated with cyclodextrin. 2. The foam is a cellulosic foam,
The extract-containing foam according to claim 1, wherein the extract is a poorly water-soluble natural extract encapsulated with cyclodextrin. 3. The extract according to claim 1, wherein said extract is Hiba essential oil clathrated with cyclodextrin.
Or the foam containing the extract according to 2. 4. The extract according to claim 1, wherein the weight ratio of the extract to the cyclodextrin is 0.01 to 50 times the weight of the extract to the cyclodextrin. Filled foam. 5. The foam with an extract according to claim 1, wherein the foam is a cleaning foam. 6. The foam with an extract according to claim 1, wherein the foam is a body wash foam. 7. An extract-containing foam, wherein the foam is a cellulose foam having an average cell diameter of 800 μm or less, and the extract is a poorly water-soluble natural extract encapsulated with cyclodextrin. Puff for facial cleansing with extract. 8. The facial cleansing puff according to claim 7, wherein the natural extract is a rice bran extract encapsulated with cyclodextrin. 9. A foam containing an extract, wherein the foam is a cellulose foam having a cell diameter of 20 mm or less, and the extract is Hiba essential oil clathrated with cyclodextrin. Foam.