JPH09241139A - Composition for oral cavity - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a composition for oral cavity, having a grain size of capsules specified by using agar as a substance for forming the tunica of the capsules, capable of easily breaking by brushing and greatly reducing a sandy feeling arising from the capsules in its using. SOLUTION: This composition contains the following (a) and (b) components besides (c)-(e) components. (a) capsules containing 0.1-20wt.% of agar as a substance for forming its a tunica and having an average grain size of 0.3-3mm, (b) 0.0001-1% of more than one kinds of perfumes selected from linalol, eugenol, anethole, terpineol, thymol, camphor, cinnamic alcohol, cinnamic aldehyde and cineol, (c) 0.1-1% of menthol, (d) a nonicnic surfactant (e.g. polyoxyethylene-poly- oxypropylene block copolymer), (e) an abrasive (e.g. calcium carbonate). It is possible to prepare in the dosage forms of tooth paste, tooth powder, tooth liquid, mouth rinse, gum massage cream, etc.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an oral composition such as a toothpaste. More specifically, the present invention relates to a highly palatable oral composition containing a capsule which is easily destructible by brushing, and in which the rough feeling derived from the capsule during use is greatly reduced.

[0002]

2. Description of the Related Art Conventionally, oral compositions such as toothpaste, powdered dentifrice, gingiva coating agent, etc., have been mixed with capsules containing useful ingredients such as various medicinal ingredients, flavoring agents and pigments. Are known. By incorporating a useful ingredient in the composition for oral cavity as a capsule, it is possible to improve the stability of the useful ingredient, and also to administer an appropriate amount of the medicinally effective ingredient to an appropriate place in the oral cavity, a flavoring agent or a pigment. It is also possible to obtain the advantage that the effect of addition of can be expressed in the oral cavity.

As a capsule to be blended in such an oral composition, the contents of the capsule are stably retained in the capsule during production and storage, while the capsule film is easily formed during use. It is important that it be destroyed and the contents be released into the oral cavity.

Conventionally, gelatin, wax-like substances, and the like have been used as film-forming substances for capsules to be incorporated into oral compositions.
Agar and the like are known, and gelatin is most commonly used. However, the use of gelatin as the film-forming substance is preferable in that a film that is easily broken during use can be formed, but the film is apt to be broken even during production, and there is a problem that the contents leak out. Further, when a wax-like substance is used, the film strength is increased, and the film of the obtained capsule has sufficient resistance to external force at the time of production, but there is a problem that it is less likely to be destroyed by brushing with a toothbrush. . On the other hand, when agar is used, such problems can be alleviated to some extent. An oral composition using agar as a film-forming substance is a microcapsule containing silicone oil as a core substance, and the toothpaste has a defoaming action of silicone that is destroyed by brushing. Composition (JP-A-55-10
No. 0309) or an opaque microcapsule in which an insoluble salt is deposited so as to cover at least a part of the capsule coating (Japanese Patent Publication No. 63-48).
No. 580) and the like.

[0005]

However, the microcapsules disclosed in JP-A-55-100309 mentioned above have an average particle size of 5 to 50 .mu.m.
No. 80 opaque microcapsules have an average particle size of 5 to 5.
Since the particle size is 100 μm and the particle size is very small in each case, there is a problem that the capsule easily escapes from the tip of the toothbrush during brushing, and thus the capsule is less likely to be broken. Further, there is a problem that the feeling of use at the time of brushing is deteriorated due to the capsule that remains without being destroyed.

In contrast to such a problem of the particle size of the capsule, if the particle size of the capsule is simply increased, the feeling of roughness during use is increased, the feeling of discomfort or foreign matter is increased, and the feeling of use is deteriorated. Occurs.

The present invention is intended to solve the problems of the prior art as described above, and in an oral composition containing a capsule, the capsule can be easily broken by brushing when used, and It is intended to greatly reduce the texture caused by capsules and enhance the palatability of the oral composition.

[0008]

Means for Solving the Problems The present inventor uses an agar as a film-forming substance of a capsule to be blended in a composition for oral cavity, and adjusts the particle size of the capsule to a specific size. In order to make it easier to destroy the capsule by brushing the composition for use, and to reduce the roughness caused by such a capsule, a specific fragrance is added to the oral composition. It has been found that it is effective to complete the present invention.

That is, the present invention contains the following components (a) and (b) (a) agar as a film-forming substance, and has an average particle size of 0.
Capsule having a size of 3 to 3 mm (b) Oral cavity containing at least one fragrance selected from the group consisting of linalool, eugenol, anethole, terpinetol, thymol, camphor, cinnamic alcohol, cinnamic aldehyde and cineol A composition for use is provided.

The present invention further comprises an oral composition containing menthol as the component (c), and the component (d).
An oral composition containing a nonionic surfactant as the above and an oral composition containing an abrasive as the component (e) are provided.

According to the oral composition of the present invention, since the coating film of the capsule containing the component (a) is formed by using agar, the capsule is not easily destroyed during production or storage. It is possible to impart a coating strength that is easily destroyed by brushing during the use of the oral composition. Further, since the average particle size of the capsule is 0.3 to 3 mm, the capsule does not escape from the bristle tips of the toothbrush during brushing and can be reliably broken by brushing. Furthermore, the oral composition of the present invention contains a specific fragrance, but since this fragrance has the action of temporarily weakening the sensation of foreign substances in the oral cavity, the texture of the capsule can be reduced. Therefore, according to the composition for oral cavity of the present invention, the feeling of roughness caused by the capsule is reduced, and the feeling of use is greatly improved.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The oral composition of the present invention will be described in detail below. In addition, in the present invention, the “capsule” means the one in which the contents such as the medicinal component, the dye and the flavoring agent are covered with a film.

The oral composition of the present invention contains a capsule as the component (a). As the capsule, those having a coating formed of agar are used. Here, as the agar, one having a large solubility in water is preferable. In particular, those having a solubility in water at 95 ° C. of 3 or more under normal pressure are preferable from the viewpoint of film forming operation, and those having a solubility of 5 or more are more preferable.

As agar, the jelly strength is 500.
Those of g / cm ² or more have sufficient gel strength,
It is preferable because the capsule does not break during the production of the oral composition. Here, the jelly strength refers to a load amount per 1 cm ² when a load is applied from the top to an agar gel having a concentration of 1.5% and it can withstand for 20 seconds.

As the film forming substance of the capsule, a hydrophilic polymer substance or a lipophilic polymer substance can be blended together with agar. Examples of the hydrophilic polymer substance include gelatin, sodium alginate, carrageenan, carboxymethylcellulose, methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, gum arabic, guar gum, xanthan gum, casein, pectin, albumin and polyvinyl alcohol. be able to.
Further, as the lipophilic polymer substance, polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyacrylic acid, polymethacrylic acid, cetyl alcohol, stearyl alcohol, ethylene glycol distearate,
Wax-like polymer substances such as sorbitan tristearate, ceresin, paraffin wax, polyolefin wax, beeswax, and carnauba wax can be used. These may be used alone or in appropriate combination of two or more.

When a hydrophilic polymer substance or a lipophilic polymer substance is blended as a film forming substance of a capsule, the blending ratio is 1 to the hydrophilic polymer substance or the lipophilic polymer substance with respect to the weight of agar. It is preferable to add 100% by weight, and particularly preferably 1 to 20% by weight. As a result, the usability can be improved without impairing the stability of the content of the capsule and the release property in the oral cavity.

The contents of the capsule may include medicinal components, flavoring agents, pigments and the like which are usually used in oral compositions such as toothpaste. The contents are not particularly limited, but lipophilic ones are preferable.

Here, examples of the medicinally active ingredient contained in the capsule include a dental caries preventive agent, an antimicrobial agent, a vitamin, an enzyme, an anti-inflammatory agent, and the like. Sodium, tin fluoride, sodium monofluorophosphate, vitamin E, vitamin C, dextranase, mutanase, sodium chloride, glycyrrhizinate, glycyrrhetinic acid, azulene, dihydrocholesterol, chlorhexidine, epidihydrocholesterol, isopropylmethylphenol, trichloro Examples include carbanilide, triclosan, halocarban, hinokitiol, allantoin, tranexamic acid, propolis, cetylpyridinium chloride, benzethonium chloride, benzalkonium chloride, sodium copper chlorophyllin sodium, and lysodium chloride. Kill.

Examples of the flavoring agent include flavoring aldehydes, esters, alcohols and the like, and more specifically, spearmint oil, peppermint oil, clove oil, sage oil, eucalyptus oil, laurel oil, cinnamon. Oil, cinnamon oil, lemon lime oil, grapefruit oil,
Menthol oil, carvone, methyl salicylate, ethyl salicylate, eugenol, camphor, ginger, ethyl acetate, diethyl ketone, eucalyptol,
Examples thereof include pepper, rose, isopropylmethylphenol, maltol, anethole and the like.

Examples of the pigments include inorganic or organic pigments, more specifically, inorganic pigments such as cobalt blue, cobalt green, yellow iron oxide, titanium oxide, mica, zinc powder and aluminum powder, and blue. No. 1, red 2
Examples thereof include lake pigments such as tar-based dyes, such as No. 5, etc., copper chlorophyll, β-carotene, hinokitiol iron complex salt, and the like.

As the contents of the capsule, oils, waxes, hydrocarbons, higher fatty acids, higher alcohols, esters, essential oils, silicone oils and the like may be further added as an excipient. it can.

Here, as the oils and fats, soybean oil, bran oil, jojoba oil, avocado oil, almond oil, olive oil, cacao oil, sesame oil, persic oil, castor oil, coconut oil, mink oil, beef tallow, lard, etc. Natural fats and oils or hydrogenated oils obtained by hydrogenating these natural fats and oils, and synthetic triglycerides such as myristic acid glyceride, 2-ethylhexanoic acid glyceride, and tricaprylic acid glyceride.

As waxes, carnauba wax, whale wax,
Beeswax, lanolin and the like can be mentioned.

Hydrocarbons include liquid paraffin, petrolatum, paraffin, microcrystalline wax,
Examples include ceresin, squalane, pristane, and the like.

Examples of the higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linoleic acid, lanolinic acid and isostearic acid.

The higher alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, lanolin alcohol, cholesterol and 2-hexyldecanol acid.

As the esters, cetyl octanoate,
Examples thereof include myristyl lactate, cetyl lactate, myristyl myristate, isopropyl palmitate, isopropyl adipate, butyl stearate, and decyl oleate.

Examples of the essential oils are peppermint oil, jasmine oil, camphor oil, cypress oil, spruce oil, ryu oil, turpentine oil, cinnamon oil, helgamot oil, mandarin oil, shovel oil, pine oil, lavender oil, bay oil, Examples thereof include glove oil, hiba oil, rose oil, eucalyptus oil, lemon oil, paper mint oil, rose oil, sage oil and the like.

Examples of the silicone oil include dimethylpolysiloxane and the like.

The contents of the capsule comprising the above components may be changed depending on the form of the oral composition, the manufacturing method, etc.
It can be in a desired form such as liquid, powder, gel or the like.

The method for producing the capsule is not particularly limited, and known production methods, for example, chemical methods such as interfacial polymerization method and submerged curing coating method, physicochemical methods such as coacervate method, and dual method. A physical method such as a nozzle dropping method or a fluidized bed method can be applied. In particular, the double nozzle dropping method is preferable from the viewpoint of particle size control.

On the other hand, in the present invention, the average particle size of the capsule is 0.3 to 3 mm. In particular, the thickness is preferably 0.5 to 3 mm, more preferably 0.6 to 2 mm. When the average particle diameter is less than 0.3 mm, the capsule composition is less likely to be broken even when brushing during use of the oral composition, and the usability is deteriorated and the appearance is also impaired. Further, if the average particle size exceeds 3 mm, the feeling of roughness becomes strong, and the feeling of use deteriorates remarkably. The capsule used in the present invention uses agar as its film-forming substance. Therefore, if the capsule is prepared and then added to the base material of the oral composition, the capsule may slightly expand. . Therefore, it is preferable that the average particle size of the capsule is such that the average particle size of the expanded capsule is within the above range.

The breaking strength of each capsule is preferably 0.1 to 20 g, and especially 1 to
It is preferably 20 g, more preferably 1 to 10 g. As a result, leakage of the contents is prevented during production and storage of the oral composition, and the capsules are easily destroyed during use to release the contents.

Here, the "breaking strength" is the amount of load when one capsule is taken out of the oral composition and a load is applied from above to break the capsule film. Further, in the present invention, the breaking strength is the compression tester KE.
It was measured by S-F3 (manufactured by Kato Iron Works Co., Ltd.) at a speed of 50 seconds / mm.

Further, in the present invention, it is preferable that the coating rate of agar of the capsule is 1 to 30% by weight,
Particularly, it is preferably 1 to 15% by weight, more preferably 5 to 15% by weight. Here, the "agar coating rate" refers to the weight percentage of agar with respect to the total weight of the capsule. With such a coating rate, the capsule can be imparted with an appropriate destructive property and the contents can be easily released at the time of use.

In the oral composition of the present invention, the content of the capsule is preferably 0.1 to 20% by weight, particularly 0.1 to 10% by weight, and further 0.5 to 5% by weight. It is preferable that the effects such as medicinal components can be appropriately exhibited, the usability becomes good, and the appearance becomes beautiful.

The oral composition of the present invention contains the above-mentioned capsules as the component (a), and further the component (b).
Is characterized by containing at least one fragrance selected from the group consisting of linalool, eugenol, anethole, terpinetole, thymol, camphor, cinnamic alcohol, cinnamic aldehyde and cineol. The fragrances of these components (b) have the action of temporarily weakening the sense of foreign matter in the oral cavity. Therefore, it is possible to reduce the rough texture derived from the capsule of the component (a), and it is possible to greatly improve the usability of the oral composition.

If the blending ratio of the fragrance of the component (b) in the oral composition is too small, the effect of adding the fragrance cannot be obtained, and if it is too large, it causes bitterness or causes a drastic change in fragrance tone. Therefore, the amount is preferably 0.0001 to 1% by weight, and more preferably 0.001 to 0.1% by weight.

The oral composition of the present invention contains the components (a) and (b) as essential components as described above.
Further, it is preferable to contain menthol as the component (c). This can impart a refreshing feeling to the oral composition. The menthol content in the oral composition is preferably 0.1 to 1% by weight.

The oral composition of the present invention preferably contains a nonionic surfactant as the component (d). This makes it possible to moderately increase the viscosity of the oral composition, suppress leakage of the contents of the capsule, and improve the stability.

As the nonionic surfactant, polyoxyethylene alkyl ether, polyoxyethylene alkyl allyl ether, polyoxyethylene / polyoxypropylene alkyl ether, polyoxyethylene / polyoxypropylene block copolymer, sucrose fatty acid. Ester, glycerin fatty acid ester, propylene glycol fatty acid ester, sorbitan fatty acid ester, alkyl glycoside fatty acid ester, polyoxyethylene sucrose fatty acid ester, polyoxyethylene glycol fatty acid ester, polyoxyethylene sorbitan fatty acid ester, alkyl glycoside, fatty acid monoethanolamide, Polyoxyethylene fatty acid monoethanolamide, polyoxyethylene fatty acid diethanolamide, polyoxyethylene Shea oil, polyoxyethylene hydrogenated castor oil, may be mentioned polyoxyethylene beeswax derivatives. Of these, polyoxyethylene / polyoxypropylene block copolymers, sucrose fatty acid esters, alkyl glycosides, polyoxyethylene sucrose fatty acid esters, and polyoxyethylene hydrogenated castor oil are preferable. Further, among these, those having low fluidity are preferable because they can greatly prevent the leakage of the contents of the capsule, and such nonionic surfactants include polyoxyethylene / polyoxypropylene block copolymers. The average molecular weight is 10
Those of 00 to 15000 are preferable.

These nonionic surfactants may be used alone or in combination of two or more. The blending ratio of the nonionic surfactant in the oral composition is 1
-40% by weight is preferable, and 3-30% by weight is particularly preferable. If it is too small, the effect of adding the nonionic surfactant cannot be obtained, and if it is too large, the taste of the oral composition is deteriorated, which is not preferable.

As the surfactant to be added to the oral composition of the present invention, in addition to the above-mentioned nonionic surfactant,
If necessary, an acylamino acid salt such as sodium acylglutamate or sodium acylsarcosinate, an ionic surfactant such as an alkyl sulfate ester salt such as sodium lauryl sulfate, or the like can be used.

The oral composition of the present invention preferably further contains an abrasive as the component (e). As described above, since the fragrance of the component (b) greatly reduces the roughness of the oral composition in the present invention, the roughness of the oral composition poses a problem even when the polishing composition is sufficiently contained. Absent.

Here, as the abrasive, calcium hydrogen phosphate for toothpaste, calcium carbonate, calcium pyrophosphate, insoluble potassium metaphosphate, anhydrous silicic acid, hydrous silicic acid, aluminum silicate, zirconium silicate, bentonite, zeolite, oxidation Examples thereof include aluminum, aluminum hydroxide and resin.

In the oral composition of the present invention, in addition to the above components (a) to (e), an oral vehicle generally used in oral compositions, such as a binder, a humectant, a fragrance, and a sweetness. If necessary, additives, bactericides, preservatives, water-soluble fluorides, water and the like can be added.

Here, as the binder, sodium carboxymethyl cellulose, sodium polyacrylate,
Examples thereof include hydroxyethyl cellulose, thickening silica, montmorillonite, carrageenan, sodium alginate, guar gum, xanthan gum and pectin.

Examples of the wetting agent include polyethylene glycol, propylene glycol, sorbitol, glycerin, maltitol, xylitol and the like, among which sorbitol and glycerin are preferable.

As the fragrance, natural fragrances such as spearmint oil, peppermint oil, winder green oil, sassafras oil, clove oil, sage oil, eucalyptus oil, mayonnaise oil, cinnamon oil, thyme oil, lemon oil and orange oil, and 1 -Synthetic flavors such as menthol, anethole, carvone, eugenol, thymol, methyl salicylate and the like.

As the bactericide, chlorhexidine salts, cetylpyridinium chloride, benzalkonium chloride,
Examples thereof include benzethonium chloride.

Examples of the preservatives include benzoic acid, sodium benzoate, parahydroxybenzoic acid and parahydroxybenzoic acid ester.

Examples of water-soluble fluorides include sodium fluoride and sodium monofluorophosphate.

In addition to the above-mentioned components, the oral composition of the present invention contains a chlorophyll compound, ε-aminocaproic acid, tranexamic acid, vitamin C, vitamin E, nicotinic acid ester, allantoinchlorohydroxyaluminum, azulene, Lysozyme chloride, hinokitiol,
It is also possible to add physiologically active components such as protease and crude drug extract.

The mixing ratio of these oral vehicles differs depending on the form of the oral composition. For example, in the case of a liquid composition, other oral vehicles excluding abrasives and binders are used. A vehicle can be included. Usually, it is preferable to add 1 to 30% by weight of a wetting agent and 50 to 96% by weight of water. Further, in the case of a paste composition, all of the above-mentioned oral vehicles can be blended, and usually 1 to 75% by weight of an abrasive and 0.5 to 5% by weight of a binder, It is preferable to add 10 to 85% by weight of the wetting agent and water in total and 0.01 to 5% by weight of the flavor and sweetener in total.

The oral composition of the present invention can be made into a desired form such as toothpaste, powdered toothpaste, liquid toothpaste, mouth rinse, gingival massage cream, etc. Capsule a), component (b)
It can be obtained by mixing the fragrance and other ingredients according to a conventional method.

In this case, according to the present invention, the fact that the agar used for forming the capsule film is transparent (colored transparent or colorless transparent depending on the dye to be blended) makes the oral composition transparent as a whole. It is preferable to prepare. This can enhance the aesthetics of the oral composition.
When preparing a composition for oral cavity to be transparent, its transparency is J
It is preferable that the value is 3 mm or more, particularly 5 mm or more as a value measured by the following measuring method according to the transparency standard inspection method of IS K0102-1993.

That is, as a method of measuring transparency, a double-line cross mark (line width 1 mm, line interval 1 mm) as shown in FIG. 1 is attached to the bottom of the graduated cylinder 10 in FIG. Then, the oral composition 12 is put into the inside of the graduated cylinder 10, and then the glass tube 14 having a bottom portion which is closed with a transparent and colorless glass plate is sunk into the graduated cylinder 10 from the upper opening portion of the glass tube. The bottom of the graduated cylinder 10 was visually observed, and the distance a (mm) between the glass tube 14 and the bottom of the graduated cylinder 10 when the double line of the mark in FIG. In this case, as the light source L, two 40 W fluorescent lamps were arranged below the graduated cylinder 10 via ground glass.

As a method for preparing the oral composition to have a desired transparency, for example, a wetting agent (glycerin, polyethylene glycol, etc.) is adjusted so as to match the refractive index of silicic acid anhydride (silica) blended in the composition. ) And water may be adjusted.

[0059]

The present invention will be described below in more detail with reference to examples.

Examples 1 to 16 and Comparative Examples 1 and 2 (i) Preparation of Dentifrice Toothpaste was prepared as an oral composition by blending the dentifrice components shown in Table 1 according to a conventional method. In this case, as the fragrance, a mixture of fragrance component A shown in Table 2 and fragrance component B shown in Table 3 was used.

As a capsule, the particle size is 0.3 m.
m (Examples 1 to 8 and Comparative Example 1) or particles having a particle size of 0.5 mm (Examples 9 to 16 and Comparative Example 2) were used.

[0062]

[Table 1] Components (% by weight) Capsule 2.0 Abrasive silica 25.0 Sorbit solution 20.0 Glycerin 10.0 Sodium carboxymethyl cellulose 0.8 Sodium lauryl sulfate 1.2 Sodium saccharin 1.0 Methylparaben 0.2 Perfume 0.8 Purified water balance

[0063]

[Table 2] Perfume ingredient A Wt% menthol 40.0 Peppermint oil 35.0 Ethanol 25.0

[0064]

[Table 3] Example Perfume Component B Evaluation Result of Perfume Component B (Capsule Agent Particle Size) (Capsule Agent Particle Size) Addition Amount (wt%) 0.3% 0.5 mm 1,9 Eugenol 0.5 ◎ ◎ 2,10 Anethole 0.5 ◎ ◎ ◎ 3,11 thymol 0.1 ◎ ◎ ◎ 4,12 camphor 0.1 ◎ ◎ 5,13 cinnamic alcohol 0.5 ◎ ○ 6,14 cinnamic aldeptide 0.5 ◎ ○ 7,15 linalool 0 １ ○ ○ 8,16 Terpineol 0.1 ○ ○ Comparative examples 1, 2 None − − −

(Ii) Evaluation Seven professional panelists were asked to brush their teeth using the toothpaste of Examples and Comparative Examples, and the sensory evaluation of the feeling of use at that time was compared with the Comparative Examples. Thus, the SD 7-level blind evaluation was performed, and the average value of the evaluation results of the 7 persons was evaluated in 4 levels according to the following evaluation criteria. Table 3 shows the results.

[Evaluation Criteria] ⊚: Roughness is greatly reduced (SD7 grade blinding evaluation value: 1-2) ○: Roughness is reduced (SD7 grade blinding evaluation value: 3-4) Δ: Roughness Is slightly reduced (SD7 grade blinding evaluation value: 5 to 6) ×: Roughness is not reduced (SD7 grade blinding evaluation value: 7)

From the results shown in Table 3, it is understood that according to the examples of the present invention containing the specific fragrance component (B), the feeling of roughness is greatly reduced.

Examples 17 to 24 Toothpastes were prepared and evaluated by repeating Examples 1 to 8 except that the addition amount of the perfume ingredient B to the perfume ingredient A was changed as shown in Table 4. Table 4 shows the results.

[0069]

[Table 4] Example Fragrance component B Evaluation result of fragrance component B (particle size of capsule agent) relative to fragrance component A (wt%) 0.3 mm 17 Eugenol 0.1 ◎ 18 anethole 0.1 ◎ 19 thymol 0.01 ◎ 20 camphor 0 .01 ◎ 21 cinnamic alcohol 0.1 ◯ 22 cinnamic aldeptide 0.1 ◯ 23 linalool 0.01 ◯ 24 terpineol 0.01 ◯ Comparative Example 1 None − −

[0070]

EFFECTS OF THE INVENTION According to the oral composition of the present invention, the capsules contained therein can be easily destroyed by brushing, and the contents of the capsules can be well released when the oral composition is used. it can. In addition, the rough texture derived from the capsule is greatly reduced, and the oral composition is highly palatable.

[Brief description of drawings]

FIG. 1 is an illustration of marks used to measure the transparency of oral compositions.

FIG. 2 is an explanatory diagram of a method for measuring the transparency of an oral composition.

[Explanation of symbols]

 10 Measuring Cylinder 12 Oral Composition 14 Glass Tube

Claims (12)

[Claims] 1. The following components (a) and (b) (a) contain agar as a film-forming substance and have an average particle size of 0.
Capsule having a size of 3 to 3 mm (b) Oral cavity containing at least one fragrance selected from the group consisting of linalool, eugenol, anethole, terpinetol, thymol, camphor, cinnamic alcohol, cinnamic aldehyde and cineol Composition. 2. The composition for oral cavity according to claim 1, wherein the capsule of the component (a) has an average particle size of 0.5 to 3 mm. 3. The oral composition according to claim 1, wherein the capsule ratio of the component (a) has a coating rate of agar of 1 to 30% by weight. 4. A capsule containing component (a) in an amount of 0.1 to 20.
The composition for oral cavity according to claim 1, which contains 0.001 to 1% by weight of the fragrance as the component (b). 5. The oral composition according to claim 1, further comprising menthol as the component (c). 6. The composition for oral cavity according to claim 5, which contains 0.1 to 1% by weight of menthol as the component (c). 7. The composition for oral cavity according to claim 1, further comprising a nonionic surfactant as the component (d). 8. The nonionic surfactant of component (d) comprises:
Polyoxyethylene / polyoxypropylene block copolymer, sucrose fatty acid ester, alkyl glycoside,
The oral composition according to claim 7, which is at least one selected from the group consisting of polyoxyethylene sucrose fatty acid ester and polyoxyethylene hydrogenated castor oil. 9. The oral composition according to claim 8, which contains a polyoxyethylene / polyoxypropylene block copolymer having an average molecular weight of 1,000 to 15,000 as the nonionic surfactant as the component (d). 10. The composition for oral cavity according to claim 1, which further contains an abrasive as the component (e). 11. The abrasive of component (e) is calcium hydrogen phosphate for toothpaste, calcium carbonate, calcium pyrophosphate, insoluble potassium metaphosphate, silicic anhydride, hydrous silicic acid, aluminum silicate, zirconium silicate, bentonite, The oral composition according to claim 10, which is at least one selected from zeolite, aluminum oxide, aluminum hydroxide, and resin. 12. The transparency of an oral composition is JIS K
The oral composition according to any one of claims 1 to 11, which has a size of 3 mm or more according to the standard transparency inspection method of 0102-1993.