JP4847062B2 - Abrasive for brushing teeth - Google Patents

Description

The present invention relates to a polishing agent for toothpaste containing cocoa powder obtained by oil expression from cocoa mass as an active ingredient.

  For cleaning agents such as toothpaste, toothpaste, face-washing foam, body soap, dishwashing detergent, kitchen detergent, bathroom and toilet cleaner, car body detergent, etc. There is something to include.

  In the cleaning by this polishing cleaning action, fine particles constituting the polishing component in the polishing detergent are added by rubbing and sliding on the polishing surface with a towel, sponge, palm, cleaning brush / toothbrush tip, etc. Dirt can be removed by mechanically acting on the object to be cleaned. Therefore, even if it is dirt that is difficult to remove by chemical dissolution / surfactant action, such as tea astringency, scale, rounding, etc., it is possible to easily remove the dirt by cleaning with the polishing cleaning action Become.

  In order to effectively exhibit such a polishing cleaning action, in addition to fine particles that are polishing components that give a mechanical polishing action, a wetting agent, a binder, etc. are blended to adjust the consistency of the polishing cleaning agent itself. It is necessary to ensure the dispersibility of the fine particles of the polishing component and the application / adhesion to the polishing surface. When used as a cleaning agent, in addition to abrasive cleaning agents, surfactants for enhancing the effect of foaming and dirt removal, and further, human skin such as toothpaste, toothpaste, face washing foam, body soap, etc. When used for oral or oral use, a flavoring agent, a flavoring agent, a refreshing agent, a coloring agent, a flavoring agent, and the like may be added to improve the feeling of use.

  For example, in dentifrices, in addition to calcium phosphate as a polishing detergent, preservatives, wetting agents, binders, foaming agents, stabilizers, pH adjusters, flavoring agents, flavoring agents, cooling agents, coloring agents, flavors What mix | blends various functional additives, such as an agent, is common.

  The polishing detergent as described above is generally composed of a synthetic compound as a main component, but since it is released into the environment as a rinse drain, it cannot be said that it is preferable from the viewpoint of environmental pollution. It is desired to provide a polishing detergent in which the main components are composed of natural materials with few such problems.

  For such a problem, for example, Patent Document 1 below includes, as a technique for using a natural material as a polishing component of a dentifrice, including pulverized rice husk particles that pass through a 200 mesh sieve as an essential tooth polishing agent, and polishing. A dentifrice is disclosed in which the total amount of the agent is less than 40% by weight of the total.

  On the other hand, as a technique for using a cocoa bean-derived composition in an oral composition, for example, Patent Document 2 below discloses an anti-periodontal disease fungus composition characterized by containing a cocoa component contained in cocoa mass as an active ingredient. It is disclosed that it can be used as a component of an oral cleaning agent that can safely and easily prevent periodontal disease. And in the Example, the toothpaste formed by mix | blending a cocoa hot-water extract is described.

Patent Document 3 listed below has a cacao powder as an additive component in a dental oral composition containing a fragrance selected from the group consisting of peppermint oil, spearmint oil, cinnamon oil and mixtures thereof as one component. A plaque-suppressing oral composition is disclosed, and a dentifrice containing cocoa powder is disclosed.
JP 58-85812 A International Publication No. 03/099304 JP 56-32410 A

  However, since the toothpaste disclosed in Patent Document 1 uses pulverized rice husk as an abrasive, it is necessary to limit the blending amount of the abrasive component in order to obtain a suitable consistency as an abrasive cleaner. Moreover, since the pulverized rice husk is a natural material, it is not a food material. Therefore, the pulverized rice husk could not have a function of imparting a fragrance, flavor or the like that improves the feeling of use when blended in an oral composition.

  Moreover, the dentifrice described in the said patent document 2 uses a cocoa extract as an anti-periodontal disease microbe component, and was not used as an active ingredient of an abrasive cleaning action. Furthermore, the plaque-suppressing oral composition described in Patent Document 3 contains cocoa powder as an anti-plaque component, but does not use cocoa powder as a polishing detergent, such as a water-insoluble phosphate. A dental abrasive was formulated as an abrasive cleaner.

Accordingly, an object of the present invention is to provide an abrasive for dentifrice which gives a preferable feeling of use even when a natural material is a main component and it is applied to human skin or oral cavity.

The inventors of the present invention have found that the cocoa powder obtained by squeezing cacao mass has a polishing and cleaning action unexpectedly, and have completed the present invention.
In the following, the term “polishing and cleaning action” means an action of the same quality as the action due to the function of a so-called polishing component in a cleaning agent or the like. In addition, although the specific mechanism of the polishing cleaning action by the cocoa powder is not clear, for the sake of convenience of description, the component of the cocoa powder that contributes to the polishing cleaning action is hereinafter referred to as the polishing cleaning ingredient of the cocoa powder. It is called.

That is, the present onset Ming, to provide a polishing agent for dentifrice which is characterized in including that the cocoa powder obtained by oil expression from cocoa mass as effective component.

According to the abrasive for brushing teeth of the present invention, the fine particles contained in the cocoa powder exhibit a mechanical polishing action, and components other than the fine particles contained in the cocoa powder can disperse the fine particles and polish the surface. Since it is thought that the application and adhesion to the surface will be good, it is possible to effectively remove dirt. Moreover, a favorable feeling of use can be given with the fragrance and material feeling of cocoa powder.

Abrasives for dentifrice of the present invention, the active ingredient and to Rukoto abrasive cleaning action cocoa powder obtained by oil expression from cocoa mass, the mechanical polishing is performed by the fine particles in cocoa powder, in cocoa powder It is considered that the components other than the fine particles also improve the dispersibility of the fine particles and the application / adhesiveness to the polished surface, so that the dirt can be effectively removed. Moreover, a favorable feeling of use can be given with the fragrance and material feeling of cocoa powder. Therefore, it can be suitably used for tooth polishing.

  Furthermore, the dentifrice of the present invention is preferable from the viewpoint of environmental contamination because the active ingredient for polishing and cleaning action is the cocoa powder.

  The cocoa powder obtained by squeezing from the cacao mass used in the present invention can be prepared according to a known method. For example, it can be obtained as follows. That is, cocoa beans are taken out from cocoa fruits, and are usually fermented at about 30 ° C. for 4 to 7 days, and then dried. The dried cocoa beans are selected with a cleaner to remove foreign substances such as metals and stones, and then crushed with a separator to remove the skin, germs and the like to obtain cocoa nibs.

  The obtained cocoa nibs may be subjected to an alkali treatment for removing the bitterness and astringency of cocoa beans as necessary.

  The cocoa nibs obtained as described above are roasted at 100 to 150 ° C. for 20 to 120 minutes, ground with a grinder to prepare cocoa mass, and the resulting cocoa mass is squeezed with a cocoa press to obtain cocoa butter. Cocoa powder can be obtained by separating and pulverizing with a cocoa mill into a fine powder. The cocoa powder usually obtained has a cocoa butter content of about 15 to 25%, but in the present invention, the cocoa powder (cocoa butter content 8% is defined in the Fair Competition Rules for the Display of Chocolates). In addition to the above, defatted cocoa (cocoa butter content of less than 8%) that cannot be said to be cocoa powder in accordance with the above rules can also be used.

  Moreover, the cocoa powder used for a commercially available cocoa drink etc. can also be used as the cocoa powder used for the said invention.

  The cocoa powder used in the present invention is composed of protein, carbohydrate, dietary fiber (water-soluble indigestible polysaccharide, hemicellulose, cellulose, lignin, etc.), phospholipid, and inorganic substances (phosphorus, magnesium, calcium, iron, zinc, copper) , Potassium, sodium, etc.), vitamin A, vitamin B group, vitamin C, vitamin E (various tocopherols, etc.), niacin, oxalic acid, citric acid, malic acid, succinic acid, lactic acid, acetic acid, polyphenols (tannin, epicatechin) Catechin, quercetin, etc.), anhydrous caffeine, theobromine, various free fatty acids (palmitic acid, stearic acid, oleic acid, linoleic acid, etc.) and the like.

In the present invention , the cocoa powder is used as an active ingredient of an abrasive for brushing teeth. The dentifrice abrasive preferably contains 10% by mass or more, more preferably 20 to 90% by mass of the cocoa powder in terms of solid content. Furthermore, the cocoa powder may be 100 mass% Dressings containing.

And, for example, it can be used as a polishing component of a dentifrice such as toothpaste and toothpaste .

In its dentifrice preferably contains oil expression to cocoa powder the solid content above 10% by weight obtained from cocoa mass, more preferably contains 20 to 90 wt%. Moreover, you may mix | blend grinding | polishing components other than cocoa powder, such as calcium phosphate, but it is preferable that the content in the dentifrice solid content is 80 mass% or less.

In the As a dentifrice, a range to maintain the preferred content of the cocoa powder, preservatives, wetting agents, Nebayuizai, foaming agents, stabilizers agents, pH adjusting agents, Teiajizai, flavoring agents, cooling agents Additives for known dentifrices such as coloring agents, flavoring agents and the like can be blended.

In the As a dentifrice, a range to maintain the preferred content of the cocoa powder, by further blending the antimicrobial agent and / or anti-plaque-forming agent, can be expected to further oral cleaning effect, It is preferable because periodontal disease, plaque formation, caries and the like can be prevented and a healthy oral cavity can be maintained.

Note that according to Patent Document 2 (WO 03/099304 discloses), since cocoa fraction contained in cacao mass is effective as an anti-periodontal bacteria composition, during tooth polishing work, from the cocoa powder Can act on the teeth and gums and can be expected to have an anti-periodontal fungus action effect as well as an abrasive cleaning action according to the present invention.

As the form of that dentifrice, powder dentifrice, Jun made dentifrice, toothpaste, a liquid dentifrice or the like can be exemplified, it can be used in daily toothpaste in the same manner as conventional dentifrice.

  In the present invention, although the details of the mechanism by which the cocoa powder obtained by squeezing cacao oil exerts the abrasive cleaning action is not clear, insoluble dietary fibers such as hemicellulose and lignin contained in the cocoa powder are substantially free from mechanical polishing. It is considered that lipids, saccharides, water-soluble dietary fiber, and the like contained in cocoa powder play an auxiliary role.

  EXAMPLES Hereinafter, the present invention will be specifically described with reference to examples, but these examples do not limit the scope of the present invention.

<Example 1> (manufactured by tone abrasives for toothpaste)
A commercially available cocoa powder (trade name: “pure cocoa”, manufactured by Morinaga Seika Co., Ltd.) was suspended in distilled water to 20% by weight to prepare an abrasive for brushing teeth . This dentifrice abrasive had a viscosity comparable to that of a normal liquid dentifrice.

<Test Example 1> (Polishing Clean Test)
The abrasive for dentifrice was made adjustment in the first embodiment, in order to compare the effectiveness of the polishing cleaning action, calcium hydrogen phosphate as a representative abrasive used in commercial dentifrices for (CaHPO ₄₎ A 20% by mass suspension and distilled water as a control were prepared, and all three test groups (20% CaHPO ₄ , 20% cocoa, distilled water) (hereinafter collectively referred to as sample polishing liquid) were compared.

  Bovine teeth that are widely used for dental in vitro experiments were used as the teeth for the polishing and cleaning test. Since there is a very thin cementitious layer on the bovine enamel surface, in order to bring it close to the condition of the human tooth surface, the cementum on the surface is used as a polishing agent (trade name: “Melsage Regular, Fine”, The cementum layer was removed by polishing with Matsukaze Co., Ltd. to expose the enamel. Further, in order to facilitate the dipping operation and the polishing operation, an aluminum rod having a diameter of about 2 mm was inserted into the pulp cavity and fixed with a resin resin.

In order to avoid experimental errors due to the color difference of the tooth surface inherent to the bovine teeth, the average value and standard deviation of the measured values and lightness L ^* values measured by a spectroscopic color difference meter, which will be described later, are made almost equal. 18 bovine teeth (bovine teeth No. 1 to 18) were selected and used for each test group as shown in Table 1 below.

  After immersing 60g of the above-mentioned bovine teeth in a black tea solution extracted with 90ml of 200ml hot water for 5 minutes and placing it in a 37 ° C incubator for 2 days to form a stain on the crown surface of the bovine teeth, It was taken out from the black tea solution and rinsed lightly with water to obtain a post-stained bovine tooth used in the following polishing cleaning test.

  The stained surface of the bovine tooth after the staining was attached by attaching the sample polishing liquid attached to the brush portion of a polishing brush (trade name: “Young Prophy Brush No. 0270”, manufactured by Young Dental Co., Ltd.). A polishing operation at a rotational speed of 5000 rpm was applied by a micro engine (trade name: “Osada BL-30”, manufactured by Nagata Electric Industry Co., Ltd.).

  As a polishing part, as shown in the center photograph in FIG. 1, a horizontal edge line connecting six horizontal arrows and a vertical line connecting two vertical arrows intersect, as shown in the center photo, Polishing was performed on three portions of the center and the gingival margin.

  Re-adjust the sample polishing solution every 1 minute so that the sample polishing liquid is not depleted with respect to the three color tone measuring parts (cut edge part, center part, gingival edge part). A polishing operation was applied for 3 minutes for a total of 9 minutes. And the color tone of three color tone measurement parts was measured, and this measured value obtained by polishing for 3 minutes per site was used as data after polishing for 3 minutes. Further, the same polishing operation was repeated to measure the color tone at three color tone measuring portions, and the data was used as data after polishing for 6 minutes.

  In the polishing cleaning test, three polishing brushes of the same lot were prepared and named as Brush A, Brush B, and Brush C. And two bovine teeth for each test group per day according to the correspondence relationship of the sample polishing liquid, brush, and bovine teeth shown in Table 2 below so that the number of times each brush used for polishing is equalized for each test group A total of six were performed. Specifically, as shown in the numbers in parentheses in Table 2 below, the order of the test work is shown in the order of (1) → (2) → (3) → (4) → (5) → (6). When 6 polishing / color tone measurements have been made, the first day's polishing cleaning test is completed and the second day (polishing order (7) → (8) → (9) → (10) → (11) → ( 12)) On the third day (polishing order (13) → (14) → (15) → (16) → (17) → (18)), the same experiment was conducted, and a total of 18 samples were polished and toned. Was measured.

  The color tone of the tooth surfaces before staining, before polishing, after 3 minutes of polishing, and after 6 minutes of polishing were compared as follows.

That is, using a spectroscopic color difference meter (trade name: “Spectro colormeter SE2000”, manufactured by Nippon Denshoku Industries Co., Ltd.), the measured value of the color tone quantified in the L ^* a ^* b ^* color system was obtained. The L ^* a ^* b ^* color system is one of color models for digitizing color information, and is a color system standardized by the CIE (International Commission on Illumination). The color system consists of a lightness element (L ^* ) ranging from black to white, and two hue / color elements ranging from green to red (a ^* ) and from blue to yellow (b ^* ). It is known that it is possible to define a color space close to human vision.

  In addition, as shown in the middle row of the middle row of FIG. 1, the color tone measurement points are the tooth surface portions corresponding to the three intersections of the straight lines from the marks of the six horizontal edges and the two vertical edges of the bovine teeth ( Measure from the top (cutting edge, center, gingival margin) twice for each tooth, and the average value and standard value of the measured values (total of 12 measured values) from 6 bovine teeth in each test group Deviation was calculated.

In FIG. 1, the color change of the tooth | gear surface is shown with a photograph about 1 representative among 6 bovine teeth of each test group. The upper part is a 20 wt% calcium hydrogen phosphate suspension (20% CaHPO ₄ ), the middle part is the abrasive for brushing teeth of Example 1 (20% cocoa), the lower part is distilled water and the sample polishing liquid. It is a photograph which shows the state when doing. The left column is a photograph showing the state after stain formation and before polishing, the middle column after polishing for 3 minutes, and the right column after polishing for 6 minutes.

As apparent from FIG. 1, when polished with 20 wt% calcium hydrogen phosphate suspension (20% CaHPO ₄ ) or the brushing abrasive (20% cocoa) of Example 1 above, with control distilled water. It was clear from the naked eye that the stain in the polished part was better removed than in the case of polishing.

In FIG. 2 (a)-(c), the result of the measurement by the said spectral color difference meter is shown with a graph. As described above, in the L ^* a ^* b ^* color system, the L ^* value indicates lightness, and the a ^* value and b ^* value indicate hue and saturation. Specifically, a ^* indicates the red direction, -a ^* indicates the green direction, b ^* indicates the yellow direction, and -b ^* indicates the blue direction.

  As shown in FIG. 2, by forming stain, the lightness of the teeth decreased (FIG. 2 (a)), and redness (FIG. 2 (b)) and yellowness (FIG. 2 (c)) became stronger. Moreover, the brightness is restored by polishing with the sample polishing liquid (FIG. 2 (a)), and redness (FIG. 2 (b)) and yellowness (FIG. 2 (c)) are closer to the color tone of the teeth before stain. The yellowness tended to be less likely to decrease than the redness.

  3 (a) to 3 (c) show the difference between the bovine teeth with respect to the degree of stain, and compare each of FIGS. 2 (a) to 2 (c) before and after polishing. It is a graph showing a measured value as the amount of change.

As shown in FIG. 3, by polishing for 3 minutes with the toothpaste abrasive (20% cocoa) of Example 1 above, the brightness is significantly increased compared to when polishing with distilled water (FIG. 3 (a )), Redness (FIG. 3 (b)) and yellowness (FIG. 2 (c)) were significantly reduced. Moreover, yellowishness further decreased by polishing for 6 minutes.

From the above, it was revealed that the abrasive for brushing teeth of Example 1 (20% cocoa) showed a significant polishing and cleaning action. The effect was not inferior to that of calcium hydrogen phosphate which has been conventionally used as a polishing component.

Next, the amount of change (ΔL ^* , Δa ^* , Δb ^* ) before and after polishing of the L ^* value, a ^* value, and b ^* value shown in FIG. 3 is substituted into the following formula (1) to obtain L ^* a ^*. The total color change amount color difference value ΔE ^* ab in the b ^* color system was determined. FIG. 4A shows the color difference values after polishing for 3 minutes, and FIG. 4B shows the color difference values after polishing for 6 minutes.

As shown in FIG. 4, it can be seen that by polishing for 3 minutes with the abrasive for brushing teeth (20% cocoa) of Example 1, a significantly higher color difference value can be obtained compared to when polishing with distilled water. (FIG. 4A). Further, in polishing with a 20 wt% calcium hydrogen phosphate suspension (20% CaHPO ₄ ), an increase in color difference value was observed after polishing for 3 to 6 minutes, whereas the toothpaste of Example 1 was used. In polishing with a polishing agent (20% cocoa), no increase in color difference value was observed due to polishing for 3 to 6 minutes (FIG. 4B). Therefore, the polishing with the toothpaste abrasive (20% cocoa) in Example 1 is more effective in a shorter time than the polishing with the 20 wt% calcium hydrogen phosphate suspension (20% CaHPO ₄ ). It was suggested that dirt can be removed.

<Test Example 2>
In order to investigate the presence or absence of stain formation by cocoa, in the same manner as in Test Example 1 above, cocoa stain was formed on bovine teeth with a 4% by weight cocoa solution having a normal drinking concentration, and the color tone was changed to the stain of the black tea solution. Compared. The results are shown in FIGS.

  As shown in FIG. 5, when bovine teeth were soaked in a 4% by weight cocoa solution, it was revealed that the change in color tone was significantly smaller than that of the black tea solution, and almost no stain was formed.

<Example 2>
A powder dentifrice was prepared by a conventional method at a blending ratio shown in Table 3 below to obtain a powder dentifrice containing 98.1% cocoa powder per solid content.

<Example 3>
A moisturized dentifrice was prepared by a conventional method at a blending ratio shown in Table 4 below to obtain a moisturized dentifrice containing 87.4% cocoa powder per solid content.

<Example 4>
A toothpaste was prepared by a conventional method at a blending ratio shown in Table 5 below to obtain a toothpaste containing 60.4% cocoa powder per solid content.

<Example 5>
A liquid dentifrice was prepared by a conventional method at a blending ratio shown in Table 6 below to obtain a liquid dentifrice containing 29.9% cocoa powder per solid content.

  The powder dentifrices, moisturizing dentifrices, toothpaste dentifrices, and liquid dentifrices prepared in Examples 2 to 5 were all dentifrices with excellent usability.

The present invention provides an abrasive for dentifrice that can be used as a polishing component for dentifrice .

It is a photograph which shows the change of the color of a cow tooth. It is a graph which shows the change of the brightness (a) of a bovine tooth surface, hue, and saturation (b), (c). It is a graph which shows the change increase / decrease amount of the brightness (a) before and behind grinding | polishing of a bovine tooth surface, hue, and saturation (b), (c). (A) It is a graph which shows the color difference value of the bovine tooth surface after 3 minutes grinding | polishing. (B) It is a graph which shows the color difference value of the bovine tooth surface after 6-minute grinding | polishing. It is a graph which shows the change of the brightness (a) of the bovine tooth surface produced by the stain formation of black tea or cocoa, hue, and saturation (b), (c).

Claims (1)

  An abrasive for dentifrice comprising cocoa powder obtained by squeezing cacao mass as an active ingredient.