JP2016113371A - Dentifrice product and dentifrice composition to charge pump vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dentifrice product and a dentifrice composition to charge a pump vessel which has adequate foaming by use of a small amount to be excellent in foam performance with foam sustainability, which is charged to the pump vessel and a small quantity of which is used by continuously discharged from the charged pump vessel to give a high teeth cleaning power and an excellent low temperature discharging property.SOLUTION: A dentifrice composition contains: (A) an anionic surfactant; (B) a nonionic surfactant; (C) an ampholytic surfactant; (D) 40-54 mass% of a sugar alcohol and/or a polyhydric alcohol; (E) 10-20 mass% of a silica-base abrasive, wherein total amount of the (A) component, the (B) component and the (C) component is 3-10 mass%, mass ratio of the (B) component to the (A) component is 0.3-2, and 0.2-0.5 mass% of (A-1) a lauroylsarcosine sodium as the (A) component. A dentifrice product in which the dentifrice composition charged in a pump vessel where a taking-out amount at a time is 0.1-0.5 g, and a dentifrice composition to charge a pump vessel are provided.SELECTED DRAWING: None

Description

  The present invention foams moderately when used in a small amount, has good foam and good foam performance, and is used by continuously discharging a small amount after filling a pump container, and has excellent low-temperature discharge performance with high tooth cleaning power. The present invention relates to a dentifrice product and a dentifrice composition for filling a pump container.

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.
Also, in order to ensure foaming of the dentifrice composition, an increase in the amount of anionic surfactant is effective, but if an anionic surfactant is added in an amount that can ensure sufficient foaming even when a small amount of the preparation is used, There were problems such as a feeling of irritation and liquid separation sometimes occurred.
Accordingly, there is no dentifrice composition that is excellent in foaming and foam retention even with a small amount of use and does not cause irritation, and development has been desired.

  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.

  The compounding component influences the discharge from the container having the pump dispenser, and as the compounding component, the compounding of a powder such as an abrasive is not suitable for the discharging. For this reason, it is effective to reduce the amount of powder such as abrasives or to make it unblended in order to achieve good discharge at low temperatures, assuming that dentifrice is stored and used at low temperatures. It is believed that there is. However, if the amount of the abrasive is reduced or it is not blended, it is excellent for discharging at low temperatures, but the cleaning power for dirt on the tooth surface is insufficient, and both the discharge ability at low temperature and the cleaning power for dirt on the tooth surface are compatible. Composition development was a major challenge.

In Patent Document 1 (Japanese Patent Laid-Open No. 2013-159604), the total amount of the anionic surfactant, the nonionic surfactant, and the amphoteric surfactant is 4.5 to 12% by mass, and sugar alcohol and / or A dentifrice composition containing 55 to 65% by mass of a polyhydric alcohol, moderately foamed with a small amount of use, good in foaming, excellent in toothpaste, and free from irritation and bitterness has been proposed. This Patent Document 1 does not refer to filling of the pump container and does not assume filling of the pump container.
Patent Document 2 (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. Propose that. This patent document 2 improves the discharge | emission property from a pump dispenser container and usability by a mica titanium mixing | blending, and there is no mention about the small amount use of a dentifrice composition.

JP 2013-159604 A JP 2009-215176 A

  Accordingly, in a dentifrice composition, even if used in a small amount, it is excellent in foaming and foam retention, has no irritation, etc., and in the case of using a pump container, the composition is excellent in tooth cleaning ability even if it is discharged at low temperature. Development has become an issue.

  The present invention has been made in view of the above circumstances, moderately foamed with a small amount of use, has good foam retention and excellent foam performance, and is used by filling a pump container and continuously discharging a small amount. It is an object of the present invention to provide a dentifrice product and a dentifrice composition for filling a pump container that provide excellent low-temperature discharge performance as well as cleaning power.

  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. The total amount of components (A), (B) and (C) is 3 to 10% by mass, (B) component / (A) component is 0.3 to 2 as a mass ratio, and (D) sugar alcohol and 40-54 mass% polyhydric alcohol, 10-20 mass% of (E) silica type abrasive | polishing agent is contained, and (A-1) lauroyl sarcosine sodium is 0.2-0.5 as said (A) component. The dentifrice composition blended by mass% has excellent foam performance that can ensure proper foaming and foam retention when used in a small amount, gives a good feeling of use without irritation and bitterness, and per use Fill the pump container with a take-out amount of 0.1-0.5g and use repeatedly It has been found that it is suitable as a toothpaste product filled in a pump container, providing excellent tooth-cleaning power and providing excellent low-temperature discharge ability that enables constant quantitative discharge at low temperatures. It was.

That is, an increase in the amount of the anionic surfactant is effective for improving foaming of the dentifrice composition, but if the amount is increased, irritation occurs during brushing. In addition, when the amount of the anionic surfactant is increased in the conventional dentifrice composition, there are problems that the preparation disappears rapidly in the oral cavity when used in a small amount, and an appropriate amount of foam cannot be secured. Furthermore, the problem of a taste fall also arose by increasing the amount of 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 applicant, in PCT / JP2014 / 068758, combines an anionic surfactant, a nonionic surfactant, and an amphoteric surfactant so that the total amount of these components is within a specific range, and sugar alcohol and / or By adding an appropriate amount of monohydric alcohol, sufficient foaming and foam retention during tooth brushing, which could not be obtained simply by increasing the amount of anionic surfactant, can be solved at the same time. Even if the amount of the preparation used is less than normal and 0.5 g or less, it is foamed appropriately at the time of toothbrushing, it has good foaming and a sufficient amount of foam is secured, and further, xanthan gum and / or sodium polyacrylate is added in combination. Dentifrice composition and dentifrice that suppress liquid separation over time and have excellent quantitative discharge from a container having a pump dispenser Was proposed goods, for discharging property remains in was evaluated under conditions of 25 ° C., it has not been studied discharge of low temperature.
Therefore, as a result of further study on the low temperature discharge property from the pump container while the applicant applied moderate foaming and foam retention in a small amount of use and maintained high tooth cleaning power, (A ) By blending a specific amount of (A-1) lauroyl sarcosine sodium as a component, the discharge properties under low temperature can be significantly improved without reducing the viscosity of the preparation or reducing the amount of powder such as an abrasive. Even if the operation of pushing and discharging 5 times a day at low temperature for 10 days is performed, the discharge rate is 70% or more of the container specified amount of the pump container. The toothpaste product and the dentifrice composition of the present invention were able to be obtained while maintaining a high tooth cleaning power capable of sufficiently removing the tooth.

  In addition, the patent document 1 which does not mention pump container filling cannot recall the technique for improving the low temperature discharge from the pump container, and the dentifrice composition of Patent Document 1 is a sugar alcohol and / or a polyhydric alcohol. Even if the pump container is filled, the low-temperature discharge property is inferior to that of the present invention. Patent Document 2 achieves the problem of the dischargeability of the dentifrice composition from the pump dispenser container and the mouth solidification by blending with mica titanium, and the mouth solidification is an evaluation at 25 ° C. Dischargeability is unknown, and in addition, the formulation of amphoteric surfactant is not essential, and no specific example of lauroyl sarcosine sodium formulation is described. Patent Document 2 is not intended to use a small amount of a dentifrice composition. In this invention, even if it does not contain mica titanium, the dentifrice composition which is excellent in foam performance, a tooth cleaning power, and the low-temperature discharge property from a pump container can be given by a small amount use.

Accordingly, the present invention provides the following dentifrice products and dentifrice compositions.
Claim 1
It contains (A) an anionic surfactant, (B) a nonionic surfactant, and (C) an amphoteric surfactant, and the total amount of components (A), (B), and (C) is 3 to 3. 10% by mass, (B) component / (A) component is 0.3-2 as a mass ratio, and (D) 40-54% by mass of sugar alcohol and / or polyhydric alcohol, (E) silica-based polishing A dentifrice composition containing 10 to 20% by mass of an agent and 0.2 to 0.5% by mass of (A-1) sodium lauroyl sarcosine as the component (A) is taken out per time A dentifrice product characterized by being filled in a pump container having a weight of 0.1 to 0.5 g.
Claim 2
The dentifrice composition contains 1.5 to 5% by mass of component (A), 0.6 to 6% by mass of component (B), and 0.5 to 3% by mass of component (C). Toothpaste products.
Claim 3
The dentifrice composition comprises (A-1) 0.2-0.5% by mass of (A-1) lauroyl sarcosine sodium as component (A) and (A-2) an alkyl sulfate, N-acyl amino acid salt, N-methyl taurine salt. The dentifrice product according to claim 1 or 2, comprising 1.0 to 4.8% by mass of one or more anionic surfactants selected from alkyl ether acetates.
Claim 4
The dentifrice product according to claim 1, 2 or 3, wherein the dentifrice composition has a viscosity at 25 ° C of 50 to 300 poise.
Claim 5
It contains (A) an anionic surfactant, (B) a nonionic surfactant, and (C) an amphoteric surfactant, and the total amount of components (A), (B), and (C) is 3 to 3. 10% by mass, (B) component / (A) component is 0.3-2 as a mass ratio, and (D) 40-54% by mass of sugar alcohol and / or polyhydric alcohol, (E) silica-based polishing 10 to 20% by mass of the agent, and 0.2 to 0.5% by mass of (A-1) lauroyl sarcosine sodium is blended as the component (A). A dentifrice composition for filling a pump container that is 0.5 g.
Claim 6
The toothpaste for filling a pump container according to claim 5, which contains 1.5 to 5% by mass of component (A), 0.6 to 6% by mass of component (B), and 0.5 to 3% by mass of component (C). Agent composition.
Claim 7
(A) 0.2-0.5% by mass of (A-1) lauroyl sarcosine sodium as component (A-2) from alkyl sulfate, N-acyl amino acid salt, N-methyl taurate and alkyl ether acetate The dentifrice composition for filling a pump container according to claim 5 or 6, comprising 1.0 to 4.8% by mass of one or more selected anionic surfactants.
Claim 8
The dentifrice composition for filling a pump container according to claim 5, 6 or 7, which has a viscosity at 25 ° C of 50 to 300 poise.

  According to the present invention, the foaming is moderately foamed with a small amount of use, the foam is good and the foam performance is excellent, and the pump container is filled and used by continuously discharging a small amount. A dentifrice product and a dentifrice composition for filling a pump container 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, these total blending amounts, (B) component / (A) component The ratio is within a suitable range, and (D) a sugar alcohol and / or a polyhydric alcohol, (E) a specific amount of a silica-based abrasive, and (A-1) lauroyl sarcosine sodium as the component (A) Is formulated with a specific amount.

Component (A): Anionic surfactant Anionic surfactants include alkyl sulfates and alkyl ether sulfates having 8 to 18 carbon atoms, particularly 10 to 16 carbon atoms, such as sodium lauryl sulfate and sodium myristyl sulfate. , Alkylbenzene sulfonate, sodium lauroyl sarcosine, N-acylamino acid salt such as sodium N-lauroyl-L-glutamate, N-acylmethyl taurate, alkyl ether acetate, etc., and these salts include sodium salt And alkali metal salts.

In the present invention, it is necessary to blend (A-1) lauroyl sarcosine sodium as the component (A), and an anionic surfactant other than sodium lauroyl sarcosine, preferably (A-2) alkyl sulfate. , N-acylamino acid salt, N-methyltaurine salt, alkyl ether acetate, or one or more anionic surfactants can be blended. That is, it is more preferable to combine the components (A-1) and (A-2) as the component (A) in order to improve foam performance and low-temperature ejection properties. As the component (A-2), alkyl sulfates, N-acyl amino acid salts, particularly sodium lauryl sulfate and sodium N-lauroyl-L-glutamate are more preferable because they can ensure excellent foam performance. It is.
Specifically, lauroyl sarcosine sodium is manufactured by Kawaken Fine Chemicals Co., Ltd., alkyl sulfates and N-acyl amino acid salts are manufactured by Toho Chemical Industry Co., Ltd. and Asahi Kasei Chemicals Co., Ltd. Also commercially available products can be used.

  The blending amount of the anionic surfactant as the component (A) is preferably 1.5 to 5% (mass%, the same applies hereinafter) of the entire composition from the viewpoint of foaming and securing the amount of foam when used in a small amount. Is 2 to 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, which is preferable. Moreover, the kneaded skin at the time of low temperature storage does not worsen.

Further, within the range of the amount of component (A), the amount of (A-1) sodium lauroyl sarcosine is 0.2 to 0.5% of the total composition, preferably 0.2 to 0.00. 3%. When the content is less than 0.2%, the effect of improving dischargeability at low temperature storage is inferior. When the content exceeds 0.5%, bitterness is generated.
Moreover, although the compounding quantity of anionic surfactant other than a lauroyl sarcosine sodium is adjusted within the range of the compounding quantity of (A) component according to the compounding quantity of (A-1) component, 1.0 to 4.8%, particularly 1.5 to 3.5% is preferable.

Component (B): Nonionic surfactant As the nonionic surfactant, a compound usually added to a dentifrice composition can be used, but a type to which ethylene oxide is added is preferable, and an average addition mole of ethylene oxide is particularly preferable. A polyoxyethylene alkyl ether having 2 to 20 moles (hereinafter abbreviated as EO addition mole number) 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 those having an added mole number of 2 to 20 is more preferable because the foam retention does not deteriorate and the taste does not deteriorate.
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.).

  (B) As for the compounding quantity of a component, 0.6-6% of the whole composition is preferable, More preferably, it is 1.0-4.5%. If it is 0.6% or more, the amount of foam can be secured and sufficient foam retention can be obtained, and the irritation at the time of blending the anionic surfactant can be sufficiently suppressed. When it is 6% or less, foaming and taste are not inferior, which is preferable.

  In addition, the blending ratio of the component (B) to the component (A) is 0.3 to 2 as the mass ratio of the component (B) / (A) from the viewpoint of foaming, foam retention, and irritation reduction, preferably 0.5 to 1.3. If it is less than 0.3, the amount of foam cannot be secured by suppressing irritation and bitterness, and foam retention is poor. When it exceeds 2, foaming occurs, foam retention is poor, 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 However, there is no particular bitterness and the taste is good and more preferable.

  Specifically, as an amphoteric surfactant, lauryl dimethylaminoacetic acid betaine aqueous solution marketed by Nikko Chemicals Co., Ltd. under the trade name NIKKOL AM-301, from Daiichi Yushi Kogyo Co., Ltd. as trade name Enadicol C-40H, In addition, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine sold by Sanyo Chemical Industries, Ltd. as Levon 105 is sold by Nikko Chemicals Co., Ltd. as trade name NIKKOL AM-3130N. Coconut oil fatty acid amidopropyldimethylaminoacetic acid betaine aqueous solution, trade names TEGO BetainCK, TEGO BetaF50, and TEGO BetainZF are sold by EVONIC, and Levon 2000 by Sanyo Chemical Industries Co., Ltd. Examples include coconut oil 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.

(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 the sugar alcohol and polyhydric alcohol include sugar alcohols such as sorbitol, xylitol, and erythritol, and polyhydric alcohols such as propylene glycol, polyethylene glycol, and glycerin, with sorbitol, propylene glycol, and glycerin being particularly preferable. In addition, these can be used individually by 1 type or in combination of 2 or more type from the point of effect expression.
Specifically, commercially available products such as glycerin manufactured by Sakamoto Yakuhin Kogyo Co., Ltd., sorbit, xylitol manufactured by Rocket, propylene glycol manufactured by Asahi Glass Co., Ltd. can be used.

  The blending amount of the component (D) is 40 to 54%, preferably 42 to 52%, more preferably 42 to 50% of the entire composition, particularly from the viewpoint of quantitative discharge from a container having a pump dispenser. is there. If it is less than 40%, solidification occurs at the mouth of the container, the quantitative discharge property is poor, the low temperature discharge property is lowered, and the foam retention at the time of using a small amount is poor. If it exceeds 54%, the spinnability of the composition deteriorates or remains at the mouth of the container and the quantitative discharge property is poor, the low-temperature discharge property is lowered, the foaming at the time of using a small amount is poor, and the taste is lowered.

Component (E): Silica-based abrasive As the silica-based abrasive, for example, silicic anhydride, aluminosilicate, zirconosilicate, silica gel, calcium silicate and the like can be used.
For example, a commercial product sold as a trade name “Zeodent” series from HUBER Co., Ltd. or a commercial product released from Taki Chemical Co., Ltd. can be used.
The average particle diameter of the silica-based abrasive is preferably 10 to 20 μm. The average particle size is a value measured with a Microtrac particle size distribution measuring device (Model 17995-1-10, Type SRA manufactured by Nikkiso Co., Ltd.), and is measured by adjusting the turbidity (dV value) of the sample to be 0.5. Value (the same applies hereinafter).

  The compounding quantity of a silica type abrasive | polishing agent is 10 to 20% of the whole composition, Preferably it is 12 to 16%. If it is less than 10%, the stain cleaning power of the teeth when used in a small amount is insufficient, and if it exceeds 20%, the container mouth is clogged and the fluidity is deteriorated, and the discharge property from the container at low temperature is deteriorated.

In the present invention, an organic binder can be further added as a binder. Especially, it is more suitable for the low temperature discharge property from a pump container to contain the xanthan gum and / or sodium polyacrylate which are water-soluble polymer substances. Specifically, xanthan gum may be a commercially available product such as Keldent (CP Kelco) or Labor gum CG-SFT (CP Kelco), and sodium polyacrylate may be Rhegic (Toagosei Co., Ltd.).
When the binder is blended, the blending amount is preferably 0.5 to 4%, particularly 0.5 to 2%, particularly 1.0 to 1.5% of the entire composition.

  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 poise or more, no kneading remains at the container discharge port, and the low-temperature discharge from the container is particularly good. It is particularly preferable that the temperature is not more than 300 poise because the low-temperature discharge property from the pump container is particularly good. 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 suitably filled and accommodated in a container equipped with a pump, and is particularly suitable for portable use by being accommodated in a small-capacity pump container that is easy to carry and not troublesome. Can be used for 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. A thing is accommodated in a pump container so that a thing can be taken out.
The composition of the present invention is excellent in foaming and foam retention even when the amount used once is small as described above, has no irritation and bitterness, has a good feeling of use, and has excellent tooth cleaning power and low-temperature ejection properties.

  The dentifrice composition of the present invention can be prepared as a dentifrice product by being filled and contained in a pump container, particularly a container provided 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 of a pump dispenser 2, a mechanism, etc., 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 small diameter, solidification of the dentifrice composition at the mouth of the contents discharge port of the container can be suppressed, and in particular, it has excellent quantitative discharge performance and is required even when used repeatedly at low temperatures. The amount can be taken out. Moreover, it becomes easy 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 Patent Application Laid-Open No. 2009-215176, Japanese Patent No. 3066331, and Japanese Patent Application Laid-Open No. 2005-41514. Those described in JP-A-2005-153901, JP-A-2006-232380 and the like can be used, and a commercially available product can be used as the 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.

[Examples and Comparative Examples]
Dentifrice compositions having the compositions shown in Tables 1 to 4 were prepared by conventional methods and evaluated by the following methods. The results are shown in Tables 1-4.

<Evaluation method of foaming when using a small amount>
Evaluation was conducted by a sensory test using 10 dentifrice specialist panels. 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.
Score 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 based on the following criteria What was ensured was determined to be a dentifrice composition that gave good foaming when brushed.
Evaluation criteria A: 3.5 to 4.0 points ○: 3.0 to less than 3.5 points Δ: 2.0 to less than 3.0 points ×: Less than 2.0 points

<Evaluation method of foam retention at the time of small amount use>
Evaluation was conducted by a sensory test using 10 dentifrice specialist panels. 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.
Rating criteria 4 points: Sufficient foam retention 3 points: Moderate foam retention 2 points: Less foam retention 1 point: Almost no foam retention 10 average evaluation results, ◎ and It was judged that the foaming composition with which good foaming was ensured was a dentifrice composition with good foam retention when brushed.
Evaluation criteria A: 3.5 to 4.0 points ○: 3.0 to less than 3.5 points Δ: 2.0 to less than 3.0 points ×: Less than 2.0 points

<Evaluation method for lack of irritation when brushing teeth>
Evaluation was conducted by a sensory test using 10 dentifrice specialist panels. 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.
Score criteria 4 points: No stimulation 3 points: Little stimulation 2 points: Slight stimulation 1 point: Stimulation Average evaluation results of 10 people, ◎ and ○ evaluations are secured according to the following criteria The product was judged to be a non-irritating dentifrice composition.
Evaluation criteria A: 3.5 to 4.0 points ○: 3.0 to less than 3.5 points Δ: 2.0 to less than 3.0 points ×: Less than 2.0 points

<Evaluation method for lack of bitterness when brushing teeth>
Evaluation was conducted by a sensory test using 10 dentifrice specialist panels. 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.
Score criteria 4 points: no bitterness 3 points: little bitterness 2 points: slightly bitterness 1 point: bitterness The average of the evaluation results of 10 people, the evaluation of ◎ and ○ is secured according to the following criteria The product was judged to be a dentifrice composition without bitterness.
Evaluation criteria A: 3.5 to 4.0 points ○: 3.0 to less than 3.5 points Δ: 2.0 to less than 3.0 points ×: Less than 2.0 points

<Evaluation method of stain cleaning power of teeth with small amount use>
Preparation of tannin iron stain-attached hydroxyapatite pellets;
The surface of the hydroxyapatite pellets (Pentax, diameter 7 mm × thickness 3.5 mm) was treated with sand blasting, and then washed with an ultrasonic cleaner in a neutral detergent solution. The surface was etched with a 30% phosphoric acid aqueous solution (10 minutes), washed with water, naturally dried, and then the Lab value (L0) of the pellet before adhesion of tannin iron stain was measured. For the above pellets, an operation of repeatedly dipping in 0.5% albumin aqueous solution → tannin extract → 0.6% iron (III) ammonium citrate aqueous solution for 1 hour was repeated 50 times and air-dried at room temperature for 1 day. Washed with running water and air-dried again to produce colored pellets. The tannin extract was placed in 1,200 mL of boiled ion-exchanged water, and 50 g of Japanese tea (Itoen), 5 bags of black tea (Lipton Brisk tea bag) and 12 g of instant coffee (Nescafe) were left overnight. Black tea was removed by filtration. The color of the surface of the produced colored pellet was measured, and the value was defined as the Lab value (L1).

Evaluation method of tannin iron stain removal effect;
Dentifrices of the compositions of Examples and Comparative Examples shown in the table were diluted with 11 times the amount of ion-exchanged water to prepare a dentifrice 12 times dispersion. In an automatic polishing tester (weight: 200 g, temperature: 25 ° C.) in which tannin iron stain-attached hydroxyapatite pellets prepared by the above method are immersed in a 12-fold dentifrice dispersion and a flat-cut toothbrush (PC clinica) is set After brushing 200 times, the Lab value (L2) of the pellets after brushing was measured. From the following formula, the tannin iron stain removal rate was obtained from the following formula.
Tannin iron stain removal rate (%) = [(L1-L2) / (L1-L0)] × 100
The stain cleaning power of the teeth was evaluated from the tannin iron stain removal rate according to the following criteria.
Evaluation criteria ◎: Tannin iron stain removal rate of 50% or more ○: Tannin iron stain removal rate of 40% or more and less than 50% Δ: Tannin iron stain removal rate of 30% or more and less than 40% ×: Tannin iron stain removal rate of less than 30%

<Evaluation method of discharge from pump container at low temperature>
When the dentifrice composition was filled in a container having a pump dispenser and used as a dentifrice product, the dischargeability from the container after use for a certain period of time was evaluated by the following method.
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 the dentifrice composition, and inside the refrigerator The operation of discharging 5 pushes per day at (5 ° C.) was continuously performed for 10 days, and then the discharge amount per push was measured. The discharge amount of 1 push was measured 10 times, and the average value was obtained. The discharge amount was calculated as a volume (ml) by measuring the mass (g) and then converting to specific gravity. The discharge property from the pump container at a low temperature was evaluated based on the evaluation criteria by obtaining the ratio of the discharge amount at a low temperature to the specified discharge amount (0.1 ml) of the container as a discharge rate at a low temperature from the following formula.
Discharge rate at low temperature (%) =
[(Discharge amount at low temperature) / (specified discharge amount of container (0.1 ml))] × 100
Evaluation criteria A: The discharge rate at low temperature is 80% or more. ○: The discharge rate at low temperature is 70% or more and less than 80%. Δ: The discharge rate at low temperature is 60% or more and less than 70%. X: The discharge rate at low temperature is 60. %Less than

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 Yushi 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) Abrasive silica (manufactured by HUBER, average particle size: about 10 μm)
Xanthan gum (CP Kelco)
Sodium polyacrylate (manufactured by Toagosei Co., Ltd.)
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 (8)

  It contains (A) an anionic surfactant, (B) a nonionic surfactant, and (C) an amphoteric surfactant, and the total amount of components (A), (B), and (C) is 3 to 3. 10% by mass, (B) component / (A) component is 0.3-2 as a mass ratio, and (D) 40-54% by mass of sugar alcohol and / or polyhydric alcohol, (E) silica-based polishing A dentifrice composition containing 10 to 20% by mass of an agent and 0.2 to 0.5% by mass of (A-1) sodium lauroyl sarcosine as the component (A) is taken out per time A dentifrice product characterized by being filled in a pump container having a weight of 0.1 to 0.5 g.   The dentifrice composition contains 1.5 to 5% by mass of component (A), 0.6 to 6% by mass of component (B), and 0.5 to 3% by mass of component (C). Toothpaste products.   The dentifrice composition comprises (A-1) 0.2-0.5% by mass of (A-1) lauroyl sarcosine sodium as component (A) and (A-2) an alkyl sulfate, N-acyl amino acid salt, N-methyl taurine salt. The dentifrice product according to claim 1 or 2, comprising 1.0 to 4.8% by mass of one or more anionic surfactants selected from alkyl ether acetates.   The dentifrice product according to claim 1, 2 or 3, wherein the dentifrice composition has a viscosity at 25 ° C of 50 to 300 poise.   It contains (A) an anionic surfactant, (B) a nonionic surfactant, and (C) an amphoteric surfactant, and the total amount of components (A), (B), and (C) is 3 to 3. 10% by mass, (B) component / (A) component is 0.3-2 as a mass ratio, and (D) 40-54% by mass of sugar alcohol and / or polyhydric alcohol, (E) silica-based polishing 10 to 20% by mass of the agent, and 0.2 to 0.5% by mass of (A-1) lauroyl sarcosine sodium is blended as the component (A). A dentifrice composition for filling a pump container that is 0.5 g.   The toothpaste for filling a pump container according to claim 5, which contains 1.5 to 5% by mass of component (A), 0.6 to 6% by mass of component (B), and 0.5 to 3% by mass of component (C). Agent composition.   (A) 0.2-0.5% by mass of (A-1) lauroyl sarcosine sodium as component (A-2) from alkyl sulfate, N-acyl amino acid salt, N-methyl taurate and alkyl ether acetate The dentifrice composition for filling a pump container according to claim 5 or 6, comprising 1.0 to 4.8% by mass of one or more selected anionic surfactants.   The dentifrice composition for filling a pump container according to claim 5, 6 or 7, which has a viscosity at 25 ° C of 50 to 300 poise.

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