JP6358255B2 - Dentifrice composition for filling a container having a pump dispenser and a dentifrice product - Google Patents

Description

  The present invention has a pump dispenser that foams moderately when used in a small amount, has good foam and good foam performance, and can be used by filling a container having a pump dispenser and continuously dispensing a small amount. The present invention relates to a dentifrice composition for filling a container and a dentifrice product.

In recent years, sales of portable electric toothbrushes have been strong, and the number of people who take oral care on the go is increasing.
However, there are many people who use a conventional size dentifrice with a conventional capacity of 130g as a dentifrice to be used together. Such a capacity is suitable for offices that are difficult to carry and place. It wasn't. On the other hand, there is a dentifrice with a capacity of 30 g accommodated in a small container for portable use, but this is limited in the number of times of use due to its small amount of accommodation, and is not suitable for continuous use.

Considering these situations, it is desired to develop a dentifrice that can be used the same number of times as a normal size even in a small-sized container excellent in portability. However, in order to use a small amount of dentifrice with the same number of times as the normal size, it is necessary to reduce the amount of use at one time. However, with existing products, the amount of dentifrice used once (usually about 1 g) When the amount was reduced, there was a problem that foaming was not sufficient when used.
In addition, an increase in the amount of anionic surfactant is effective for ensuring foaming of the dentifrice composition, but if an anionic surfactant is added in such an amount that sufficient foaming can be ensured even if a small amount of the preparation is used, irritation will occur. There was a problem that the liquid was separated or liquid separation occurred.
Accordingly, there is no dentifrice composition which is excellent in foaming and foam retention even in a small amount of use, has no irritation, and does not cause liquid separation, and development has been desired.

Patent Document 1; Japanese Patent Application Laid-Open No. 2006-347987 discloses a technique in which 1.7% by mass or more of an anionic surfactant and a nonionic surfactant are used in combination as an oral composition having moderate foaming properties and reduced irritation. Has been proposed. However, this is a combination of the above surfactants with xanthan gum and alginate to improve foaming properties, and is not due to the combined use of surfactants. In addition, there is no mention of foaming and foam retention when used in small amounts.
Patent Document 2; Japanese Patent Application Laid-Open No. 10-72342 defines a ratio of a nonionic surfactant to an anionic surfactant as a means for removing surfactant irritation in an aqueous composition. There is no mention of improving foaming or foam retention.

On the other hand, as a container to be filled with a preparation to be used in a small amount, a pump container capable of discharging a necessary amount by one push, such as a container having a pump dispenser, is more suitable than a tube container in which a single use amount cannot be controlled. is there.
However, when such a pump container is filled with a dentifrice composition, the dentifrice composition remains or solidifies at the discharge port mouth due to its stringiness at the time of discharge, and it becomes impossible to discharge a fixed amount when repeatedly used. There was a problem. In particular, when the discharge amount is small, quantitativeness is an important issue.

  Patent Document 3; Japanese Patent Application Laid-Open No. 2009-215176 discloses that a dentifrice composition containing glycerin, a thickener, a silica-based abrasive, and mica titanium is excellent in dischargeability and usability from a container equipped with a pump dispenser. However, this is an improvement in dischargeability and usability due to the incorporation of titanium mica, and there is no mention of the use of a small amount of dentifrice composition.

JP 2006-347987 A JP-A-10-72342 JP 2009-215176 A

Therefore, the dentifrice composition has excellent foaming and foam retention even when used in a small amount, does not cause irritation, does not cause liquid separation, and has a stringiness and clogging in the pump when using a pump dispenser container. The development of a composition that does not impair the discharge quantitativeness due to the above has been an issue.
The present invention has been made to solve the above-mentioned problems, and can be used by filling a container having a pump dispenser with a constant amount of foam, moderately foaming with a small amount of use, having good foam retention and excellent foam performance. An object of the present invention is to provide a dentifrice composition for filling a container having a pump dispenser and a dentifrice product using the same.

  As a result of intensive studies to achieve the above object, the present inventor contains (A) an anionic surfactant, (B) a nonionic surfactant, and (C) an amphoteric surfactant, and ( A), (B) and (C) the total amount of components is 3 to 10% by mass, (B) / (A) is 0.3 to 2 as a mass ratio, and (D) sugar alcohol and / or many A dentifrice composition containing a monohydric alcohol, (E) xanthan gum and / or sodium polyacrylate has excellent foam performance that can ensure adequate foaming and foam retention with a small amount of use, and there is no irritation or bitterness Gives a good feeling of use, does not cause liquid separation, and can be dispensed in a fixed amount even after repeated use by filling a container having a pump dispenser, and is suitable as a dentifrice product filled in a container having a pump dispenser Knew that

That is, an increase in the amount of anionic surfactant is effective for improving foaming of the dentifrice composition, but if the amount is increased, irritation occurs during brushing. Moreover, when the amount of the anionic surfactant is increased in the conventional dentifrice composition, there is a problem that the preparation disappears quickly in the oral cavity when a small amount is used, and an appropriate amount of foam cannot be secured. Furthermore, the problem of a drop in taste also occurred by increasing the amount of the anionic surfactant. In addition, when the amount of the preparation used at one time is small, irritation and taste reduction are reduced to some extent. However, as described above, foaming at the time of brushing and foam retention have been technical problems.
On the other hand, the inventor surprisingly combined the components (A), (B), and (C) to make the total amount of these components a specific range and blend the component (D) in an appropriate amount. The above-mentioned problems have been solved, foaming at the time of brushing, which can not be obtained just by increasing the amount of anionic surfactant, and sufficient foam retention can be ensured, and the problems of taste and irritation can be solved at the same time. It was found that even when the amount of the preparation used was less than usual and 0.5 g or less, foaming was moderately foamed at the time of toothbrushing, foaming was good and a sufficient amount of foam was secured. In addition, it has been found that by mixing the components (A) to (D) together with the component (E), liquid separation over time is suppressed and the quantitative discharge from a container having a pump dispenser is excellent. In this case, the present inventor found that when the components (A) to (D) were combined and the amount of the anionic surfactant was increased, a new problem of liquid separation during high-temperature storage occurred, and further studies were made. As a result, the (E) component is combined with the (A) to (D) components, and more preferably (F) carrageenan is blended, thereby eliminating the above-mentioned problem of liquid separation and providing the above-mentioned special effects. It was made.

  In Patent Document 3, the dentifrice composition is housed in a container equipped with a pump dispenser and has excellent dischargeability and can suppress mouth solidification, but this is an improvement in discharge properties and mouth solidification by mica titanium blending. In addition, it does not require the formulation of amphoteric surfactants and is not intended for use in small amounts. Even if the composition does not contain titanium mica, the composition is excellent in the discharge from the pump container and technically different from the present invention that can be discharged quantitatively.

Accordingly, the present invention provides the following dentifrice composition and dentifrice product.
[1]
(A) 1.5 to 5% by mass of an anionic surfactant;
(B) 0.6-6 mass% nonionic surfactant,
(C) The amphoteric surfactant is contained in an amount of 0.5 to 3% by mass, and the total amount of the components (A), (B) and (C) is 3 to 10% by mass, and the component (B) / (A). The component is 0.3 to 2 as a mass ratio, and (D) 40 to 60% by mass of sugar alcohol and / or polyhydric alcohol,
(E) Xanthan gum and / or sodium polyacrylate is contained in an amount of 0.5 to 4% by mass, the (D) component / (E) component is 28 to 43 as a mass ratio, and the viscosity at 25 ° C. is 50 to 50%. A dentifrice product comprising a dentifrice composition of 300 poise filled in a container having a pump dispenser with an amount of 0.1 to 0.5 g taken out at a time.
[2]
(A) component is an alkyl sulfate having 8 to 18 carbon atoms in the alkyl group , (B) component is polyoxyethylene hydrogenated castor oil having an average added mole number of ethylene oxide of 5 to 60 mol, and (C) component is The dentifrice product according to [1], which is a coconut oil fatty acid amidopropyl betaine.
[3]
The dentifrice product as described in [1] or [2] whose mass ratio of (B) component / (A) component is 0.5-1.3.
[4]
The dentifrice composition further contains (F) carrageenan, the total content of the component (E) and the component (F) is 0.5 to 4% by mass, and the component (D) / ((E) component + (F) Dentifrice product in any one of [1]-[3] whose component is 22-58 as mass ratio.
[5]
The dentifrice product according to any one of [1] to [4], wherein the dentifrice composition further contains 8 to 16% by mass of a silica-based abrasive.
[6]
The dentifrice product according to any one of [1] to [5], wherein the dentifrice composition is in a paste form or a gel form.
[7]
(A) 1.5 to 5% by mass of an anionic surfactant;
(B) 0.6-6 mass% nonionic surfactant,
(C) The amphoteric surfactant is contained in an amount of 0.5 to 3% by mass, and the total amount of the components (A), (B) and (C) is 3 to 10% by mass, and the component (B) / (A). The component is 0.3 to 2 as a mass ratio, and (D) 40 to 60% by mass of sugar alcohol and / or polyhydric alcohol,
(E) Xanthan gum and / or sodium polyacrylate is contained in an amount of 0.5 to 4% by mass, the (D) component / (E) component is 28 to 43 as a mass ratio, and the viscosity at 25 ° C. is 50 to 50%. A dentifrice composition for filling a container having a pump dispenser with a removal amount of 0.1 to 0.5 g per time, which is 300 poise.
[8]
(A) component is an alkyl sulfate having 8 to 18 carbon atoms in the alkyl group , (B) component is polyoxyethylene hydrogenated castor oil having an average added mole number of ethylene oxide of 5 to 60 mol, and (C) component is The dentifrice composition according to [7], which is coconut oil fatty acid amidopropyl betaine.
[9]
The dentifrice composition as described in [7] or [8] whose (B) component / (A) component is 0.5-1.3 as mass ratio.
[10]
Furthermore, it contains (F) carrageenan, the total content of component (E) and component (F) is 0.5 to 4% by mass, and component (D) / ((E) component + (F) component) The dentifrice composition according to any one of [7] to [9], wherein is a mass ratio of 22 to 58.
[11]
Furthermore, the dentifrice composition in any one of [7]-[10] which contains a silica type abrasive | polishing agent 8-16 mass%.
[12]
The dentifrice composition according to any one of [7] to [11], which is in the form of a paste or gel .

  ADVANTAGE OF THE INVENTION According to this invention, the toothbrush for container filling which has a pump dispenser which foams moderately by a small amount use, is excellent in foamability and is excellent in foam performance, and can be filled and used for a fixed amount discharge to the container which has a pump dispenser. An agent composition and a dentifrice product using the same can be provided.

It is a schematic sectional drawing which shows one Example of the container which has a pump dispenser filled with the dentifrice composition of this invention.

  The present invention will be described in further detail below. The dentifrice composition of the present invention comprises (A) an anionic surfactant, (B) a nonionic surfactant, and (C) an amphoteric surfactant. The dentifrice composition contains a pump dispenser and contains (D) sugar alcohol and / or polyhydric alcohol, (E) xanthan gum and / or sodium polyacrylate. Filled into a container and prepared as a dentifrice product.

Component (A): Anionic surfactant Anionic surfactants include alkyl sulfates, alkyl ether sulfates, alkylbenzenes having 8 to 18 carbon atoms, particularly 10 to 16 carbon atoms, such as sodium lauryl sulfate and sodium myristyl sulfate. Examples thereof include N-acyl amino acid salts such as sulfonate, sodium lauroyl sarcosine, sodium N-lauroyl-L-glutamate, N-acylmethyl taurate, alkyl ether acetate, and the like. Examples of these salts include alkali metal salts such as sodium salts. Of these, alkyl sulfates, particularly sodium lauryl sulfate, are more preferred because they can ensure excellent foam performance. As the alkyl sulfate, commercially available products such as those manufactured by Toho Chemical Industry Co., Ltd. can be used.

  The blending amount of the component (A) anionic surfactant is preferably 1.5 to 5% (mass%, the same shall apply hereinafter) of the whole composition, more preferably, from the viewpoint of foaming and securing the amount of foam when used in a small amount. 2-4%. When 1.5% or more is blended, sufficient foaming can be secured with a small amount of use, and sufficient foam retention can be obtained by securing the amount of foam. If it is 5% or less, irritation, bitterness and liquid separation do not occur, and the kneaded skin during low-temperature storage does not deteriorate.

(B) component: nonionic surfactant As a nonionic surfactant, what is normally mix | blended with a dentifrice composition can be used, However, The type to which ethylene oxide was added is preferable, and especially the average addition mole number of ethylene oxide ( Hereinafter, it is abbreviated as “EO addition mole number”) and a polyoxyethylene alkyl ether having 2 to 20 moles and an alkyl group having 14 to 18 carbon atoms and / or E.E. O. Polyoxyethylene hydrogenated castor oil having an addition mole number of 5 to 60 mol is preferred. These can be used alone or in combination of two or more.

In this case, the carbon number of the alkyl group of the polyoxyethylene alkyl ether is preferably 14 to 18, particularly 16 (cetyl) to 18 (stearyl). O. The added mole number is preferably 2 to 20 moles, particularly preferably 5 to 10 moles. The alkyl group has 14 to 18 carbon atoms, and E.I. O. Use of a compound having an added mole number of 2 to 20 moles is more preferable because it does not deteriorate the foam retention or deteriorate the taste.
E. of polyoxyethylene hydrogenated castor oil O. The number of added moles is preferably 5 to 60 mol, particularly 5 to 30 mol, especially 5 to 20 mol. E. O. When the number of added moles is 5 to 60 moles, it is more preferable because the foam retention does not deteriorate and the taste does not deteriorate.
Among these, as the component (B), E. O. A polyoxyethylene hydrogenated castor oil having an addition mole number within the above range is preferred.

Examples of the polyoxyethylene alkyl ether include EMALEX 105, 107, 605, 608 (manufactured by Nippon Emulsion Co., Ltd.), BLAUNON SR-705, 707 (manufactured by Aoki Oil & Fat Co., Ltd.) and the like.
As polyoxyethylene hydrogenated castor oil, for example, NIKKOL HCO-5, HCO-10, HCO-20, HCO-30, HCO-60 (manufactured by Nikko Chemicals), BLAUNON CW-3, 10, PCW-20 (Aoki Oil & Fats Industry Co., Ltd.).

  The blending amount of the component (B) is preferably 0.6 to 6% of the total composition, more preferably from the viewpoint of ensuring foam retention with improved irritation, improving foam retention, and suppressing liquid separation when an anionic surfactant is blended. 1.0 to 4.5%. If it is 0.6% or more, it is possible to suppress irritation and secure a sufficient amount of foam to obtain sufficient foam retention, and it is possible to sufficiently suppress irritation and liquid separation when an anionic surfactant is blended. When it is 6% or less, foaming and taste are not inferior.

  Moreover, the blending ratio of the component (B) to the component (A) is such that (B) / (A) is 0.3 to 2 in terms of mass ratio from the viewpoint of foaming, foam retention, and irritation reduction. 5 to 1.3. If it is less than 0.3, the amount of foam cannot be ensured by suppressing irritation and bitterness, resulting in poor foam retention or liquid separation. When it exceeds 2, foaming is inferior to foaming, and bitterness occurs.

Component (C): Amphoteric Surfactant As the amphoteric surfactant, a betaine-based one is preferable. For example, an alkylbetaine-based, fatty acid amidopropylbetaine-based, alkylimidazolinium betaine-based amphoteric surfactant can be used.
Specifically, alkyldimethylaminoacetic acid betaine such as lauryldimethylaminoacetic acid betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, coconut oil fatty acid amide propyldimethylaminoacetic acid betaine, coconut oil fatty acid amide And propylbetaine. These can be blended singly or in combination of two or more. Among them, coconut oil fatty acid amidopropyl betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, especially coconut oil fatty acid amidopropyl betaine Is more preferable from the standpoint of effect.

  Specific examples of amphoteric surfactants include lauryldimethylaminoacetic acid betaine aqueous solution marketed by Nikko Chemicals Co., Ltd. under the trade name NIKKOL AM-301, Lion Co., Ltd. under the trade name Enagicol C-40H, and Levon 105. 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine sold by Sanyo Chemical Industries, Ltd., and palm oil fatty acid sold by Nikko Chemicals Co., Ltd. under the trade name NIKKOL AM-3130N Coconut oil and fat sold by EVONIC as amidopropyldimethylaminoacetic acid betaine aqueous solution, trade names TEGO BetainCK, TEGO BetaF50 and TEGO BetainZF, and Sanyo Kasei Kogyo Co., Ltd. as Levon 2000 Examples include fatty acid amidopropyl betaine.

  The blending amount of the component (C) is preferably 0.5 to 3%, more preferably 0.5 to 1% of the entire composition from the viewpoints of foaming, foam retention, and taste. If it is 0.5% or more, foaming can be obtained satisfactorily, and if it is 3% or less, the taste does not deteriorate, which is preferable.

  In the present invention, it is important to use the components (A), (B) and (C) in combination, and that the total amount of these components is appropriate for improving the effect, particularly improving the foam performance. The total amount of the components (A), (B) and (C) is 3 to 10% of the whole composition, preferably 3.6 to 8%, more preferably 3.6 to 5.6%. . If it is less than 3%, the foaming is inferior. If it exceeds 10%, the taste is poor and the feeling of use is inferior, liquid separation occurs, and the object of the present invention is not achieved.

(D) Component: Sugar alcohol and / or polyhydric alcohol Here, the polyhydric alcohol is an alcohol in which two or more of the hydrogen atoms of the aliphatic hydrocarbon are substituted with a hydroxyl group. The sugar alcohol is a chain alcohol in which the carbonyl group of the sugar molecule is reduced.
Examples of sugar alcohols and polyhydric alcohols include sugar alcohols such as sorbitol, xylitol, and erythritol, and polyhydric alcohols such as propylene glycol, glycerin, and polyethylene glycol 400 to 4000. Polyethylene glycol and its average molecular weight are those described in the quasi-drug raw material standard 2006. Among them, sorbit, xylitol, propylene glycol, glycerin, polyethylene glycol 400, particularly sorbit, propylene glycol, and glycerin are preferable. As the component (D), one kind selected from these may be used alone, or two or more kinds may be used in combination from the viewpoint of effect expression.
These can use a commercial item. As glycerin, for example, a commercial product manufactured by Sakamoto Yakuhin Kogyo Co., Ltd., sorbit, xylitol, for example, a commercial product manufactured by Rocket Co., and propylene glycol, for example, a commercial product manufactured by Asahi Glass Co., Ltd. can be used. As the polyethylene glycol, a commercial product manufactured by Sanyo Chemical Industries, Ltd. can be used.

  The blending amount of component (D) is 40 to 60%, preferably 42 to 54% of the total composition, particularly from the viewpoint of quantitative discharge from a container having a pump dispenser. If it is less than 40%, solidification occurs at the mouth of the container, resulting in inferior quantitative discharge performance and poor foam retention when used in a small amount. If it exceeds 60%, the spinnability of the composition deteriorates or remains at the mouth of the container and the quantitative discharge property is inferior, and the foaming at the time of using a small amount is inferior or the taste is lowered. Furthermore, liquid separation cannot be suppressed.

(E) component: Xanthan gum and / or sodium polyacrylate The (E) component is a binder, and is a water-soluble polymer substance xanthan gum and sodium polyacrylate. As the component (E), xanthan gum or sodium polyacrylate may be used, or xanthan gum and sodium polyacrylate may be used in terms of effect.
These may be those usually used in dentifrice compositions, and commercially available products can be used. Examples of xanthan gum include Keldent (manufactured by CP Kelco) and Laborum gum CG-SFT (manufactured by CP Kelco), and examples of sodium polyacrylate include Rheosic (manufactured by Toagosei Co., Ltd.).

  The blending amount of the component (E) is 0.5 to 4% of the total composition, preferably 0.5 to 2%, particularly from the viewpoint of quantitative discharge from a container having a pump dispenser and liquid separation suppression. More preferably, it is 1.0 to 1.5%. (E) As the amount of the component increases, liquid separation can be suppressed, and when it is less than 0.5%, the composition is liquid-separated or becomes non-uniform, resulting in poor quantitative discharge from the container. If it exceeds 4%, the spinnability of the composition deteriorates or remains at the mouth of the container due to an increase in viscosity, resulting in poor quantitative discharge.

  Further, the blending ratio of the (D) component to the (E) component is not particularly limited, but (D) / (E) is preferably 22 to 58 as a mass ratio, more preferably 25 to 54, still more preferably. 28-43. When it is within the above range, the quantitative discharge from the container is more excellent, and liquid separation can be further suppressed. When the viscosity is 22 or more, the viscosity of the composition does not increase and the quantitative discharge property from the container does not deteriorate. When the viscosity is 58 or less, the viscosity decreases and the composition remains in the container discharge port. It is possible to prevent deterioration of the quantitative discharge performance from the liquid and to suppress liquid separation.

In the present invention, it is preferable to further blend (F) carrageenan. When the (F) carrageenan, which is a water-soluble polymer substance, is blended together with the component (E) as a binder, the quantitative discharge from the pump dispenser container is further improved.
The carrageenan may be one usually used in a dentifrice composition, and a commercially available product can be used. For example, a commercially available product made by CP Kelco can be used.
When (F) carrageenan is blended, the total blending amount of the components (E) and (F) is 0.5 to 4%, particularly 0.5 to 2%, particularly 1.0 to 1.% of the total composition. It is preferable to add within a range of 5%.
Moreover, when mix | blending (F) component, (D) / ((E) + (F)) which shows the mixture ratio of (D) component and the total amount of (E) and (F) component is mass. The ratio is preferably 22 to 58, particularly 25 to 54, particularly 28 to 43.

  In the composition of the present invention, an abrasive such as a silica-based abrasive usually used in a dentifrice composition can be blended, and the blending amount is preferably 8 to 16%, particularly preferably 10 to 14%. The average particle size of the silica-based abrasive is preferably 10 to 20 μm.

  The dentifrice composition of the present invention can be prepared in the form of liquid, liquid, paste, gel, etc., and can be prepared by employing a conventional method. In this case, if necessary, appropriate known components can be blended in addition to the components described above. For example, inorganic binders such as silicic anhydride, preservatives such as methylparaben, sweeteners such as sodium saccharin, active ingredients such as colorants, fragrances and fluorides can be blended, and these components and water can be mixed to produce. . In addition, what is necessary is just to mix | blend these arbitrary components in a normal quantity as needed.

  As for the viscosity of the dentifrice composition of this invention, it is desirable to set the viscosity in 25 degreeC to 50-300 poise, especially 50-200 poise. When the viscosity is 50 poises or more, it is easy to put on the toothbrush, hardly hangs down from the toothbrush, and there is no kneading at the container discharge port, and the quantitative discharge from the container is particularly good. When it is 300 poises or less, the discharge property from the pump dispenser container is particularly good and more preferable. In addition, viscosity is Toki Sangyo Co., Ltd. (form: VISCOMETER TVB-10), rotor No. 6 is measured at 25 ° C. with a rotation speed of 20 rpm and a measurement time of 3 minutes.

  The dentifrice composition of the present invention is filled and accommodated in a container equipped with a pump dispenser, but it is particularly suitable for portable use because it is accommodated in a small-capacity container that is easy to carry and does not need to be placed. Can be used. In this case, a container with a smaller capacity than that of a general dentifrice preparation (about 100 to 150 g), for example, 50 g or less, particularly 10 to 30 g, is preferably used.

The composition of the present invention is preferably a dentifrice composition of 0.1 to 0.5 g, more preferably 0.1 to 0.4 g, and still more preferably 0.1 to 0.3 g as a single use amount. An object is stored in a container so that it can be removed.
The composition of the present invention is excellent in foaming and foam retention even with a small amount of use as described above, and has a good feeling of use without irritation and bitterness.

  The dentifrice composition of the present invention is prepared as a dentifrice product by being filled and contained in a container equipped with a pump dispenser in which the amount taken out once is within the above range of use. In this case, the storage container includes a container main body and a pump dispenser, and presses the pressing portion of the pump dispenser attached to the upper opening of the container main body, so that the content stored in the container main body by the pump mechanism The thing is discharged from the contents discharge port of the pump dispenser. Such a container is not particularly limited as long as it is equipped with a pump dispenser and can be filled with a dentifrice composition, and can be used depending on the purpose of use.

FIG. 1 is a schematic cross-sectional view showing an embodiment of a pump dispenser container that can be used in the present invention, and such a container is preferable from the viewpoint of the quantitative discharge property of the contained dentifrice composition.
A container body 1 and a pump dispenser 2 attached to the upper opening of the container body 1 are filled with the contents (composition) filling portion 5 inside the outer layer 3 forming the outer shape, The content filling unit 5 is in close contact with the bottom of the pump dispenser 2. Further, a movable bottom surface 4 is slidably and airtightly installed at the bottom of the container body 1, and the movable bottom surface portion 4 rises in the container body 1 in accordance with the reduced pressure inside the container body 1. In this container, by pressing the pressing portion 7 of the pump dispenser 2 downward, the dentifrice composition filled in the content filling portion 5 by a pump mechanism (not shown) in the pump dispenser 2 is fixed. The amount is discharged from the content discharge port 6 through the content inflow passage (not shown) leading from the inside of the pump dispenser to the content discharge port 6, and the inside of the container body 1 is decompressed accordingly. The movable bottom surface portion 4 is raised. In the figure, 8 is an overcap.

As the material of the container body, particularly the outer layer 3, materials having a hardness that can discharge the contents, such as polypropylene, low density polyethylene resin, high density polyethylene resin, polycarbonate, polyethylene terephthalate, etc. can be used. Is preferred.
As a material of the pump dispenser 2, polyethylene, polypropylene, polyethylene terephthalate, high-density polyethylene resin, or the like can be used, and polypropylene is particularly preferable. In addition, there is no restriction | limiting in particular in the shape, mechanism, etc. of the pump dispenser 2, The thing according to use conditions can be employ | adopted.
As the material of the overcap 8, styrene resin, high density polyethylene resin, polypropylene, polyethylene and the like can be used, and styrene resin is particularly preferable.

  In addition, the mechanism for causing the contents to flow out is not limited to the mechanism in which the movable bottom portion rises as the contents are discharged as described above, and an inner bag that can be deformed and deformed in the container body is attached to the pump dispenser, A mechanism in which the volume of the inner bag is reduced as the contents are discharged may be used.

As said pump dispenser container, what can be taken out within a range of the above-mentioned usage amount can be used, and the diameter of the contents discharge port is a dentifrice composition within the above usage range at one time. Although it will not be restrict | limited especially if it can take out, 1-5 mm is preferable, and the thing of 1-3 mm from the point of fixed_quantity | dispersion discharge especially 1-2 mm is preferable. By using such a narrow caliber, solidification of the dentifrice composition to the mouth of the contents discharge port of the container can be suppressed, and the quantitative dispensing performance is better, and the required amount can be taken out even after repeated use Can do. Moreover, it becomes easier to place the dentifrice composition on the toothbrush.
Examples of containers that can be used in the present invention include International Publication No. 2012/035660, Japanese Patent Publication No. 6-27057, Japanese Unexamined Patent Publication No. 2009-215176, Japanese Patent No. 3066331, Japanese Unexamined Patent Publication No. 2005-41514, The thing as described in Unexamined-Japanese-Patent No. 2005-153901, Unexamined-Japanese-Patent No. 2006-232380, etc. can be used, and a commercial item can be used as a container. Specifically, commercially available pump containers sold by Yoshino Kogyo Co., Ltd. or Mitani Valve Co., Ltd. can be used.
Although the height (D) and width (L) of the container main body of the container shown in FIG. 1 are not particularly limited, the height is preferably 50 to 150 mm, particularly 80 to 120 mm, and the width is preferably 15 to 50 mm, particularly 20 to 40 mm.

  EXAMPLES Hereinafter, although an Example and a comparative example are shown and this invention is demonstrated concretely, this invention is not restrict | limited to the following Example. In the following examples, “%” means “% by mass” unless otherwise specified. POE is an abbreviation for polyoxyethylene, and the number in parentheses after POE is the average added mole number of POE.

[Examples and Comparative Examples]
Dentifrice compositions having the compositions shown in Tables 1 to 5 were prepared by a conventional method. Each dentifrice composition has a viscosity at 25 ° C. (product of Toki Sangyo Co., Ltd., model: VISCOMETER TVB-10, rotor No. 6, rotation speed 20 rpm, measurement time 3 minutes). It was in the range of ~ 300 poise.
Each evaluation was performed by the following method by using the obtained dentifrice composition as a test preparation. The results are shown in the table.

(1) Evaluation of foam performance, irritation and bitterness The foam performance, lack of irritation and lack of bitterness of the dentifrice composition were evaluated by the following methods.
<Evaluation method of foaming when using a small amount>
Evaluation was carried out by a sensory test using 10 evaluators of toothpaste specialists. About 0.25 g of the dentifrice composition was placed on a toothbrush and brushed for 3 minutes, and foaming of the dentifrice composition in the oral cavity during use was evaluated according to the following criteria.
4 points: Sufficient foaming 3 points: Moderate foaming 2 points: Less foaming 1 point: Almost no foaming Average evaluation results of 10 people, ◎ and ○ foaming were secured according to the following criteria It was judged that this was a dentifrice composition that gave good foaming when brushed.
◎: 3.5 points or more and 4.0 points or less ○: 3.0 points or more and less than 3.5 points △: 2.0 points or more and less than 3.0 points ×: Less than 2.0 points

<Evaluation method of foam retention at the time of small amount use>
Evaluation was carried out by a sensory test using 10 evaluators of toothpaste specialists. About 0.25 g of the dentifrice composition was placed on a toothbrush and brushed for 3 minutes, and the foam retention of the dentifrice composition in the oral cavity during use was evaluated according to the following criteria.
4 points: Sufficient foam retention 3 points: Moderate foam retention 2 points: Low foam retention 1 point: Almost no foam retention Average results of evaluation of 10 people, ◎ and ○ based on the following criteria What was ensured to have foam retention was judged to be a dentifrice composition with good foam retention when brushed.
◎: 3.5 points or more and 4.0 points or less ○: 3.0 points or more and less than 3.5 points △: 2.0 points or more and less than 3.0 points ×: Less than 2.0 points

<Evaluation method for lack of irritation when brushing teeth>
Evaluation was carried out by a sensory test using 10 evaluators of toothpaste specialists. About 0.25 g of the dentifrice composition was placed on a toothbrush and brushed for 3 minutes, and the irritation felt during use was evaluated according to the following criteria.
4 points: no stimulation at all 3 points: little stimulation 2 points: some stimulation 1 point: there is stimulation Average evaluation results of 10 people, and ◎ and ○ evaluations are secured according to the following criteria Was determined to be a non-irritating dentifrice composition.
◎: 3.5 points or more and 4.0 points or less ○: 3.0 points or more and less than 3.5 points △: 2.0 points or more and less than 3.0 points ×: Less than 2.0 points

<Evaluation method of bitterness when brushing teeth>
Evaluation was carried out by a sensory test using 10 evaluators of toothpaste specialists. About 0.25 g of the dentifrice composition was placed on a toothbrush and brushed for 3 minutes, and the bitter taste felt during use was evaluated according to the following criteria.
4 points: no bitterness 3 points: little bitterness 2 points: slightly bitterness 1 point: bitterness Evaluation results of 10 people are averaged, and ◎ and ○ evaluations are ensured according to the following criteria Was determined to be a dentifrice composition without bitterness.
◎: 3.5 or more and 4.0 or less ○: 3.0 or more and less than 3.5 points △: 2.0 or more and less than 3.0 points ×: Less than 2.0 points

(2) Evaluation of liquid separation The absence of liquid separation of the dentifrice composition over time was evaluated by the following method.
<Method for evaluating the absence of liquid separation>
30 ml of the dentifrice composition was filled into a screw tube (manufactured by Maruemu Co., Ltd., model number: No. 7) and stored at 50 ° C. for 1 month. After storage, the contents were observed from the outside of the screw tube, and liquid separation was evaluated according to the following criteria.
4 points: There was no liquid separation in the upper layer of the contents (thickness of the liquid separation layer: 0 mm)
3 points: Level at which liquid separation was slightly observed in the upper layer of the contents but no problem (thickness of liquid separation layer: more than 0 mm and less than 0.5 mm)
2 points: Liquid separation was observed in the upper layer of the contents (thickness of liquid separation layer: 0.5 mm or more and less than 1.0 mm)
1 point: Liquid separation was observed severely in the upper layer of the contents (thickness of liquid separation layer: 1.0 mm or more)
For each dentifrice composition, the average value of the points of liquid separation of three screw tubes was calculated, and the evaluations of 及 び and ◯ were judged to be dentifrice compositions without liquid separation according to the following criteria.
◎: 4.0 points ○: 3.0 points or more and less than 4.0 points Δ: 2.0 points or more and less than 3.0 points ×: Less than 2.0 points

(3) Evaluation of discharge from a pump dispenser container When filling a dentifrice composition into a container having a pump dispenser and using it as a dentifrice product, the quantitative discharge from the container after a certain period of use is evaluated by the following method. did.
<Method for evaluating quantitative discharge from a container having a pump dispenser>
A container having a pump dispenser shown in FIG. 1 (content discharge port diameter 1.3 mm, content discharge amount 0.1 ml, manufactured by Mitani Valve Co., Ltd.) is filled with 12 g of a dentifrice composition, 25 ° C. After performing the operation of discharging 5 pushes per day in a 20 RH% constant temperature bath for 10 days continuously, the discharge amount per push was measured. The discharge amount of 1 push was measured 10 times, and the average value was obtained. In addition, after measuring mass (g), the discharge amount was converted into specific gravity, calculated as a volume (ml), and compared with the specified discharge amount (0.1 ml) of the container. The average value, maximum value, and minimum value of the discharge amount are shown in the table.
The ratio of the discharge amount of the dentifrice composition to the specified discharge amount (0.1 ml) of the container was determined, and the quantitative discharge performance was evaluated according to the following criteria.
◎: Discharge amount is less than ± 10% of the specified discharge amount of the container ○: Discharge amount is ± 10% or more and less than 15% of the specified discharge amount of the container ×: Discharge amount is ± 15% or more of the specified discharge amount of the container

Details of the raw materials used are as follows.
(A) Sodium lauryl sulfate (manufactured by Toho Chemical Co., Ltd.)
(A) Lauroyl sarcosine sodium (Soipon SLP, manufactured by Kawaken Fine Chemical Co., Ltd.)
(A) Sodium N-lauroyl-glutamate (Amino Surfact ALMS-P1, manufactured by Asahi Kasei Chemicals Corporation)
(B) POE (20) hydrogenated castor oil (BLAUNON PCW-20, manufactured by Aoki Oil & Fat Co., Ltd.)
(B) POE (60) hydrogenated castor oil (manufactured by Nippon Emulsion Co., Ltd.)
(B) POE (5) stearyl ether (BLAUNON SR-705, manufactured by Aoki Oil & Fat Co., Ltd.)
(C) Coconut oil fatty acid amidopropyl betaine (30% aqueous solution, Levon 2000, manufactured by Sanyo Chemical Industries, Ltd.)
(C) 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine (30% aqueous solution, Enadicol C-40H, manufactured by Otsuka Kogyo Co., Ltd.)
(D) Propylene glycol (Asahi Glass Co., Ltd.)
(D) Sorbit (70% aqueous solution, made by Rocket)
(D) Glycerin (concentrated glycerin, manufactured by Sakamoto Pharmaceutical Co., Ltd.)
(D) Xylitol (made by Rocket)
(D) Polyethylene glycol 400 (manufactured by Sanyo Chemical Industries)
(E) Xanthan gum (CP Kelco)
(E) Sodium polyacrylate (manufactured by Toa Gosei Co., Ltd.)
(F) Carrageenan (CP Kelco)
Abrasive silica (Huber, average particle size: about 10 μm)
In addition, as for other components, those conforming to the Quasi-drug raw material standard 2006 were used.
In addition, in the Example and comparative example in a table | surface, the compounding quantity of each component is the value converted into the pure part.

1. 1. Container body 2. Pump dispenser Outer layer 4. 4. movable bottom part 5. Content filling unit 6. Content discharge port Press part 8. Overcap D: Container height L: Container width

Claims (12)

(A) 1.5 to 5% by mass of an anionic surfactant;
(B) 0.6-6 mass% nonionic surfactant,
(C) The amphoteric surfactant is contained in an amount of 0.5 to 3% by mass, and the total amount of the components (A), (B) and (C) is 3 to 10% by mass, and the component (B) / (A). The component is 0.3 to 2 as a mass ratio, and (D) 40 to 60% by mass of sugar alcohol and / or polyhydric alcohol,
(E) Xanthan gum and / or sodium polyacrylate is contained in an amount of 0.5 to 4% by mass, the (D) component / (E) component is 28 to 43 as a mass ratio, and the viscosity at 25 ° C. is 50 to 50%. A dentifrice product comprising a dentifrice composition of 300 poise filled in a container having a pump dispenser with an amount of 0.1 to 0.5 g taken out at a time. (A) component is an alkyl sulfate having 8 to 18 carbon atoms in the alkyl group , (B) component is polyoxyethylene hydrogenated castor oil having an average added mole number of ethylene oxide of 5 to 60 mol, and (C) component is The dentifrice product according to claim 1, which is coconut oil fatty acid amidopropyl betaine.   The dentifrice product according to claim 1 or 2, wherein the mass ratio of component (B) / component (A) is 0.5 to 1.3.   The dentifrice composition further contains (F) carrageenan, the total content of the component (E) and the component (F) is 0.5 to 4% by mass, and the component (D) / ((E) component + The dentifrice product according to any one of claims 1 to 3, wherein (F) component) has a mass ratio of 22 to 58.   The dentifrice product according to any one of claims 1 to 4, wherein the dentifrice composition further contains 8 to 16% by mass of a silica-based abrasive. The dentifrice product according to any one of claims 1 to 5, wherein the dentifrice composition is in a paste form or a gel form. (A) 1.5 to 5% by mass of an anionic surfactant;
(B) 0.6-6 mass% nonionic surfactant,
(C) The amphoteric surfactant is contained in an amount of 0.5 to 3% by mass, and the total amount of the components (A), (B) and (C) is 3 to 10% by mass, and the component (B) / (A). The component is 0.3 to 2 as a mass ratio, and (D) 40 to 60% by mass of sugar alcohol and / or polyhydric alcohol,
(E) Xanthan gum and / or sodium polyacrylate is contained in an amount of 0.5 to 4% by mass, the (D) component / (E) component is 28 to 43 as a mass ratio, and the viscosity at 25 ° C. is 50 to 50%. A dentifrice composition for filling a container having a pump dispenser with a removal amount of 0.1 to 0.5 g per time, which is 300 poise. (A) component is an alkyl sulfate having 8 to 18 carbon atoms in the alkyl group , (B) component is polyoxyethylene hydrogenated castor oil having an average added mole number of ethylene oxide of 5 to 60 mol, and (C) component is The dentifrice composition according to claim 7, which is a coconut oil fatty acid amidopropyl betaine.   The dentifrice composition according to claim 7 or 8, wherein (B) component / (A) component is 0.5 to 1.3 as a mass ratio.   Furthermore, it contains (F) carrageenan, the total content of component (E) and component (F) is 0.5 to 4% by mass, and component (D) / ((E) component + (F) component) The dentifrice composition according to any one of claims 7 to 9, wherein is a mass ratio of 22 to 58.   The dentifrice composition according to any one of claims 7 to 10, further comprising 8 to 16% by mass of a silica-based abrasive. The dentifrice composition according to any one of claims 7 to 11, which is in a paste form or a gel form.

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