JP5516796B2 - Dentifrice composition - Google Patents

Description

  The present invention relates to a dentifrice composition contained in a container equipped with a pump dispenser. More specifically, the present invention can be easily discharged from the contents discharge port of a container equipped with a pump dispenser. The present invention relates to a dentifrice composition that does not adhere to the mouth and does not solidify, is easily placed on a toothbrush, does not easily drip from the toothbrush, and exhibits a sufficient cleaning effect on the tooth surface.

  A container body and a pump dispenser are provided. The pump dispenser is mounted on the upper opening of the container body, and the contents stored in the container body are discharged from the contents discharge port by pressing the pressing part of the pump dispenser. A dentifrice that contains a dentifrice composition in a container (hereinafter referred to as a pump dispenser container) and can be used by discharging the dentifrice composition with a pump dispenser during use is different from a dentifrice contained in a normal tube. The amount of toothpaste used can be controlled and the viscosity is lower than the dentifrice contained in the tube container, so it is excellent in dispersibility in the oral cavity. It is thought that there is.

  On the other hand, the dentifrice composition generally contains an abrasive such as anhydrous silicic acid, calcium carbonate, calcium phosphate or the like in order to exert a cleaning effect on tooth dirt such as stains on the tooth surface.

  However, when a dentifrice composition containing a sufficient amount of abrasive to exert a sufficient cleaning effect on the tooth surface is housed in the pump dispenser container, the discharge from the container due to pressing of the pump dispenser is poor, In addition, there is a problem that, when discharged, it adheres to the mouth of the contents of the pump dispenser, remains and solidifies, and as the number of uses increases, it becomes difficult to discharge from the container.

  The applicant has proposed a low-viscosity liquid dentifrice composition with improved fluidity (see Patent Documents 1 to 3). These liquid dentifrice compositions contain an abrasive for exhibiting a sufficient cleaning effect, and have a viscosity at 25 ° C. set to 20 to 180 poise.

  However, the liquid dentifrice composition has good fluidity when stored in a plastic bottle container and is easy to discharge, but when stored in a pump dispenser container that can adjust the discharge amount once, the liquid dentifrice composition is pressed and discharged It was difficult to place in the pump dispenser container because there was a problem that it was too far from the toothbrush, difficult to put on the toothbrush, and easy to sag from the toothbrush.

  Therefore, it is desirable to develop a dentifrice composition that is suitable for being housed in a pump dispenser container and having excellent tooth cleaning properties, which solves the problems such as dischargeability and usability described above. It is.

Conventionally, in order to impart pearl luster to the dentifrice appearance, titanium mica is blended in the oral composition (see Patent Documents 4 to 6), but the dentifrice composition blended with titanium mica is from a pump dispenser container. It is not known that it excels in its discharge and usability.
Patent Document 4 is a patent relating to a dentifrice composition which contains abrasive silica and titanium mica, gives a good pearl feeling, has excellent liquid separation and stability, and includes glycerin and sorbit as components that can be added. Viscosity agents such as propylene glycol, abrasive silica, and mica titanium are described. Patent Document 5 is a patent relating to a dentifrice that has a pearly feeling and has no flavor deterioration or liquid separation, and describes wettable agents, abrasive silica, mica titanium, and the like as components that can be blended. Patent Document 6 is a patent relating to a toothpaste composition containing pearly luster with good color tone and containing titanium mica and having a transparency adjusted to a certain range. As a component that can be blended, wetting agents (glycerin, sorbitol, polyethylene glycol) ), Abrasive silica and titanium mica are described. In Examples 1 and 3, 40% by mass of sorbitol liquid (70%), 5% by mass of glycerin, 0.1 or 2% by mass of titanium mica, abrasive silica A dentifrice composition containing 20% by mass of is described. However, the dentifrice compositions of Patent Documents 4 to 6 are not limited in the blending ratio of glycerin and other wetting agents, and when used in a pump dispenser container, dischargeability and solidification in the mouth occur, and the pump dispenser It is difficult to use in a container.

JP-A-4-210908 JP-A-4-217614 JP-A-4-217615 Japanese Examined Patent Publication No. 7-59491 Japanese Patent Laid-Open No. 11-43423 JP-A-11-217320

  As described above, the dentifrice composition blended with an abrasive to ensure sufficient cleaning power for the teeth is housed in a pump dispenser container that can adjust the discharge amount at one time, and the amount of toothpaste used can be easily adjusted, It is difficult to exhibit the effect of dentifrice satisfactorily because of its good discharge and usability, and development of a dentifrice composition that overcomes the above-described problems is desired.

  The present invention was made to meet such a demand, and in a dentifrice composition containing an abrasive capable of ensuring a sufficient cleaning effect, it can be easily discharged from a pump dispenser container, and the discharge amount can be adjusted once. When discharged from the container, it does not stick to the mouth of the contents outlet of the pump dispenser and does not solidify, it can be used continuously, it is easy to put on the toothbrush, it is difficult to drip from the toothbrush, and the cleaning effect on the tooth surface is fully demonstrated. An object of the present invention is to provide a dentifrice composition for a pump dispenser container.

  As a result of intensive studies to achieve the above object, the present inventors have (A) glycerin, (B) sorbite and propylene glycol as a thickener and / or polyethylene glycol having an average molecular weight of 190 to 630, ( C) A silica-based abrasive and (D) titanium mica having an average particle diameter of 10 to 100 μm are combined and combined, and the total amount of components (A) and (B) is 30 to 55% by mass, (A) / (B) is contained at a ratio of 0.5 to 2.0, (C) component is contained in an amount of 10 to 25 mass%, and (D) component is contained in an amount of 0.03 to 3 mass%. When a dentifrice composition containing an abrasive having a viscosity at 25 ° C. of 40 to 180 poise is contained in a plastic container equipped with a pump dispenser, the dentifrice composition can be easily removed from the contents discharge port of the pump dispenser container. In addition to being able to adjust the discharge amount per discharge to an appropriate amount, it does not stick to the mouth of the content discharge port after discharge and does not solidify. It has been found that it is easy to put on a toothbrush, does not easily sag from the toothbrush, and can sufficiently exert the cleaning effect on the tooth surface. Furthermore, it discovered that the higher cleaning effect and foaming could be acquired by mix | blending lauryl sulfate with the said dentifrice composition.

  In the present invention, glycerin, which is a known component, is combined as an ingredient of the dentifrice composition, and sorbite and propylene glycol and / or polyethylene glycol having an average molecular weight of 190 to 630 are combined in an appropriate ratio as a thickening agent. A silica-based abrasive that is usually used in these combined compositions by blending an appropriate amount of mica titanium having an average particle size of 10 to 100 μm and a viscosity of the composition at 25 ° C. of 40 to 180 poise. Titanium mica, which is larger in particle size but less abrasive, reduces the friction between the content flow path and discharge part of the pump dispenser and the silica-based abrasive, making it easy to control the discharge amount. Disposability from the pump dispenser container that was difficult to solve, solidification of the contents discharge port to the mouth, toothbrush Can solve problems such loaded ease to, dentifrice compositions having excellent properties described above can be considered to be obtained.

Accordingly, the present invention provides the following dentifrice composition.
[1]
A dentifrice composition for filling a pump dispenser container, comprising a container main body for containing the contents and a pump dispenser, wherein the contents are discharged from the discharge port when the pump dispenser is pressed, wherein (A) glycerin, (B) viscosity It contains sorbitol as a thickener and propylene glycol and / or polyethylene glycol having an average molecular weight of 190 to 630, (C) a silica-based abrasive, and (D) titanium mica having an average particle size of 10 to 100 μm, (A) And the total compounding quantity of (B) component is 30-55 mass%, and the mass ratio of (A) / (B) is 0.5-2.0, and the compounding quantity of (C) component is 10-25 mass%. The dentifrice composition whose compounding quantity of (D) component is 0.03-3 mass%, and whose viscosity in 25 degreeC of a composition is 40-180 poise.
[2]
(B) The dentifrice composition as described in [1] whose content of a thickener is 12.5-30 mass% of the whole composition.
[3]
(A) The dentifrice composition as described in [1] or [2] whose content of glycerol is 12.5-27.2 mass% of the whole composition.
[4]
(B) The thickener of the component contains 10 to 26% by mass of propylene glycol and / or polyethylene glycol having an average molecular weight of 190 to 630, as described in [1], [2] or [3] Dentifrice composition.
[5]
(B) Dentifrice composition in any one of [1] thru | or [4] whose content of sorbit as a thickener of a component is 11.9-21 mass% of the whole composition.
[6]
Furthermore, (E) The dentifrice composition in any one of [1] thru | or [5] containing a lauryl sulfate.
[7]
The dentifrice composition according to any one of [1] to [6], wherein the dentifrice composition is a gel.
[8]
The dentifrice composition according to any one of [1] to [7], wherein the diameter of the content discharge port of the pump dispenser container is 2 to 10 mm.

  The dentifrice composition of the present invention is excellent in dischargeability from the pump dispenser container, can adjust the discharge amount of one time to an appropriate amount, and does not remain and solidify at the mouth of the contents discharge port of the container after discharge, Can be used continuously as a toothpaste product stored in a pump dispenser container because it is easy to put on a toothbrush, is difficult to drip from the toothbrush, and exhibits a sufficient cleaning effect on the tooth surface. .

It is a schematic sectional drawing which shows one Example of the container which accommodates the dentifrice composition of this invention. It is a schematic sectional drawing which shows another Example of the container which accommodates the dentifrice composition of this invention. It is a schematic sectional drawing which shows another Example of the container which accommodates the dentifrice composition of this invention.

  Hereinafter, the present invention will be described in more detail. The dentifrice composition of the present invention comprises a thickener selected from (A) glycerin, (B) sorbit, propylene glycol, and polyethylene glycol, (C) a silica-based abrasive, ( D) Contains titanium mica.

  (A) As glycerol, what is marketed, for example from Lion Oleochemical Co., Ltd. can be used. The blending amount is preferably 12.5 to 25% (mass%, the same shall apply hereinafter), particularly 17 to 25%, based on the entire composition (hereinafter the same unless otherwise specified). If it is less than 12.5%, the mouth of the pump dispenser container may solidify at the time of discharge, making it difficult to use. If it exceeds 25%, the discharge from the pump dispenser container may be inferior.

The component (B) is a thickener selected from sorbit, propylene glycol, and polyethylene glycol.
For example, a commercial product manufactured by Towa Kasei Kogyo Co., Ltd. can be used as the sorbite, and a commercial product manufactured by Asahi Glass Co., Ltd. can be used as the propylene glycol.
The polyethylene glycol preferably has an average molecular weight of 190 to 630, particularly 280 to 420. In addition, the said average molecular weight shows the average molecular weight of quasi-drug raw material specification 2006 description. Specific examples include polyethylene glycol 200 (average molecular weight 190 to 210), polyethylene glycol 300 (average molecular weight 280 to 320), polyethylene glycol 400 (average molecular weight 380 to 420), and polyethylene glycol 600 (average molecular weight 570 to 630). it can. Depending on the product, there may be a # between the polyethylene glycol and the numerical value, such as polyethylene glycol # 200. For example, polyethylene glycol manufactured by Daiichi Kogyo Seiyaku Co., Ltd. can be used.

  Two or three types of the above-mentioned thickener (B) are used in combination. In this case, the combined use of sorbite and propylene glycol, the combined use of sorbite, propylene glycol, and polyethylene glycol having an average molecular weight of 200 to 400, and particularly the combination of three types of sorbite, propylene glycol, and polyethylene glycol having an average molecular weight of 400 are preferable.

  The blending amount of the thickener selected from sorbit, propylene glycol and polyethylene glycol is preferably 12.5 to 30%, particularly preferably 15 to 25%. If it is less than 12.5%, the mouth of the pump dispenser container is solidified, and if it exceeds 30%, the discharge from the pump dispenser container may not be improved.

  In this invention, in order to ensure the discharge property from a pump dispenser container, the total compounding quantity of (A) glycerin and (B) the said thickener is 30 to 55%, Preferably it is the range of 40 to 50%. If it is less than 30%, it adheres to the mouth of the contents discharge port of the pump dispenser container and solidifies and cannot be used continuously. If it exceeds 55%, the discharge from the pump dispenser container is inferior.

  Moreover, in this invention, in order to ensure the discharge | emission property of the dentifrice composition from a pump dispenser container, (A) component / (B) component is 0.5-2.0 by mass ratio, Preferably 0.7-1 .5. If (A) / (B) is less than 0.5, it adheres to the mouth of the pump dispenser container and solidifies, and cannot be used continuously. If it exceeds 2.0, the discharge from the pump dispenser container is inferior.

  (C) As a silica type abrasive | polishing agent, what is normally used for manufacture of a dentifrice composition, such as a silicic acid anhydride, an aluminosilicate, a zirconosilicate, a silica gel, a calcium silicate, can be used, for example. Specifically, a commercial product sold by Taki Chemical Co., Ltd. can be used. A compounding quantity is 10-25%, Preferably it is 10-20%, More preferably, it is 15-20%. If it is less than 10%, the cleaning effect on the dirt on the teeth is not satisfactorily exhibited, and if it exceeds 25%, the dischargeability from the pump dispenser type container is inferior.

  (D) Titanium mica has an average particle diameter (measured value by laser scattering measurement method; hereinafter the same unless otherwise specified) of 10 to 100 μm, and particularly preferably 50 to 90 μm. When the average particle size is less than 10 μm, the effect of improving the discharge property by the mica titanium blending is not sufficiently exhibited. If it exceeds 100 μm, the mica titanium is clogged in the content discharge part and cannot be used continuously. As such mica titanium, mica titanium manufactured by Merck Co., Ltd., for example, MP-149 (average particle size 65 to 82 μm), MP-45 (average particle size 49 to 57 μm), etc. can be used.

  The compounding amount of titanium mica is preferably 0.03 to 3.0%, particularly 0.03 to 1.0%, and particularly preferably 0.03 to 0.5%. If it is less than 0.03%, the mica titanium may not sufficiently exert the effect of improving the discharge performance from the pump dispenser. If it exceeds 3.0%, the mouth of the pump dispenser container is solidified and cannot be used continuously. There is a case.

Furthermore, in order to obtain an excellent cleaning effect and foaming, it is preferable to add (E) lauryl sulfate to the composition of the present invention.
Lauryl sulfate is an anionic surfactant having an average alkyl chain length of 12 synthesized from higher fatty acids. Specific examples include alkali metal salts such as sodium lauryl sulfate and potassium lauryl sulfate, and ammonium lauryl sulfate. Sodium lauryl sulfate is most preferable from the viewpoint of ease of incorporation into a dentifrice composition. As the sodium lauryl sulfate, for example, one manufactured by Toho Chemical Industry Co., Ltd. can be used.
The blending amount of lauryl sulfate is 0.5 to 2.0%, particularly preferably 1.0 to 1.5%, and if it is less than 0.5%, a sufficient cleaning effect and foaming cannot be obtained, and 2.0 Exceeding% may cause irritation to the oral mucosa.

  The dentifrice composition of the present invention can be prepared in a translucent gel (gel) form, and in addition to the above essential components, the following components can be arbitrarily blended within a range not impairing the effects of the present invention. For example, other thickeners, binders, sweeteners, preservatives, colorants, fragrances, various active ingredients and the like other than those mentioned above can be mixed with water and produced according to a conventional method. In addition, it is desirable not to mix | blend abrasives other than a silica type abrasive | polishing agent.

  As the thickener, in addition to glycerin, sorbit, propylene glycol, polyethylene glycol, for example, sugar alcohols such as xylitol, maltitol, and lactitol, polyhydric alcohols such as 1,3-butylene glycol, polypropylene glycol, ethanol, modified ethanol, A sugar alcohol-reduced starch saccharified product or the like can be blended as necessary. The blending amount is appropriately selected according to the form, purpose of use, etc. of the dentifrice composition of the present invention, but a range in which the total blending amount with the components (A) and (B) is 35 to 60% is preferable.

  Binders include carrageenan, sodium carboxymethylcellulose, methylcellulose, sodium hydroxyethylcellulose, sodium alginate, xanthan gum, tragacanth gum, karaya gum, arabiya gum, locust bean gum, polyvinyl alcohol, sodium polyacrylate, carboxyvinyl polymer, polyvinylpyrrolidone, carbopol. , Silica gel, aluminum silica gel, bee gum, laponite and the like (the blending amount is usually 0.1 to 2.0%).

As a foaming agent, in addition to lauryl sulfate, other anionic surfactants, nonionic surfactants, cationic surfactants, and amphoteric surfactants can be blended.
Examples of anionic surfactants include sodium alkyl sulfate such as sodium myristyl sulfate, N-acyl sarcosine sodium such as sodium N-lauroyl sarcosine, sodium N-myristoyl sarcosine, sodium dodecylbenzenesulfonate, sodium hydrogenated coconut fatty acid monoglyceride monosulfate N-acyl glutamate such as sodium lauryl sulfoacetate and sodium N-palmitoyl glutamate, sodium N-methyl-N-acyl taurate, sodium N-methyl-N-acylalanine, sodium α-olefin sulfonate and the like.

Nonionic surfactants include sugar alcohol fatty acid esters such as sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, sucrose fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyethylene glycol Polyhydric alcohol fatty acid ester such as fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene copolymer, polyoxyethylene alkylphenyl ether, ether type activator such as polyoxyethylene hydrogenated castor oil, diethanolamine laurate And fatty acid alkanolamides such as
Examples of the cationic surfactant include alkyl ammonium and alkyl benzyl ammonium salts. Examples of amphoteric surfactants include 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, alkyldimethylaminoacetic acid betaine, and fatty acid amidopropyl betaine.
These surfactants can be used alone or in combination of two or more. The blending amount is appropriately selected according to the form of the dentifrice composition of the present invention, the purpose of use, etc., and the total blending amount with lauryl sulfate is preferably 0.5 to 4.0%.

  Examples of the sweetening agent include saccharin sodium, stevioside, stevia extract, paramethoxycinnamic aldehyde, neohesperidyl hydrochalcone, perlartin, glycyrrhizin, thaumatin, asparatylphenylalanine methyl ester and the like.

  Examples of the preservative include paraoxybenzoic acid esters such as methyl paraoxybenzoate and ethyl paraoxybenzoate, benzoic acid or salts thereof.

  As coloring agents, Red No. 2, Red No. 3, Red No. 225, Red No. 226, Yellow No. 4, Yellow No. 5, Yellow No. 205, Blue No. 1, Blue No. 2, Blue No. 201, Blue No. 204, Green No. 3, titanium oxide and the like.

  Perfumes are peppermint oil, spearmint oil, anise oil, eucalyptus oil, wintergreen oil, cassia oil, clove oil, thyme oil, sage oil, lemon oil, orange oil, peppermint oil, cardamom oil, coriander oil, mandarin oil, lime Oil, lavender oil, rosemary oil, laurel oil, camomil oil, caraway oil, marjoram oil, bay oil, lemongrass oil, origanum oil, pine needle oil, neroli oil, rose oil, jasmine oil, iris concrete, absolute peppermint Natural fragrances such as absolute rose and orange flower, and fragrances processed by these natural fragrances (front reservoir cut, rear reservoir cut, fractional distillation, liquid extraction, essence, powder fragrance, etc.), and Menthol, Carvone, Anethole, Cineol, Methyl salicylate , Synamic aldehyde, eugenol, 3-1-menthoxypropane-1,2-diol, thymol, linalool, linalyl acetate, limonene, menthone, menthyl acetate, N-substituted-paramentane-3-carboxamide, pinene, octylacetate Dehydr, citral, pregon, calbeetoacetate, anisaldehyde, ethyl acetate, ethyl butyrate, allylcyclohexane propionate, methyl anthranilate, ethyl methyl phenyl glycidate, vanillin, undecalactone, hexanal, ethyl alcohol, propyl alcohol , Butanol, isoamyl alcohol, hexenol, dimethyl sulfide, cycloten, furfural, trimethylpyrazine, ethyl lactate, methyl lactate Toothpaste compositions such as single flavors such as ethyl thioacetate, and scents such as strawberry flavor, apple flavor, banana flavor, pineapple flavor, grape flavor, mango flavor, butter flavor, milk flavor, fruit mix flavor, tropical fruit flavor, etc. The well-known perfume material used for can be used, and it is not limited to the perfume of an Example.

  In addition to these components, as medicinal components or effective components, enzymes such as dextranase, amylase, proteinase, and mutanase, alkali metal monofluorophosphates such as sodium monofluorophosphate, sodium fluoride, and fluoride first Fluorides such as tin, tranexamic acid, epsilon aminocaproic acid, aluminum chlorohydroxy allantoin, azulene, glycyrrhizinate, glycyrrhetinic acid, vitamins and other anti-inflammatory agents, copper chlorophyll, copper gluconate, cetylpyridinium chloride, benzalkonium chloride , Antibacterial agents such as triclosan, hinokitiol, lysozyme chloride, and anticalculus agents such as polyphosphates and zeolites.

  As for the viscosity of the dentifrice composition of the present invention, the viscosity at 25 ° C. is set to 40 to 180 poise. When the viscosity is less than 40 poise, it is difficult to put on the toothbrush or it is easy to sag from the toothbrush. When it exceeds 180 poise, the discharge property from the pump dispenser container is deteriorated. 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 can be prepared as a dentifrice product by being contained in a container equipped with a pump dispenser. 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 storage container is not particularly limited as long as it is equipped with a pump dispenser, and a container according to the purpose of use can be adopted, and a commercially available product can be used. In addition, containers described in JP-A-2005-41514, JP-A-2005-153901, JP-A-2006-232380, and Japanese Patent No. 3062631 can also be used.

  The container shown in FIGS. 1-3 is a specific example of the said storage container, and in this invention, especially the container shown in FIG. 1 is the discharge property of the stored dentifrice composition, and the solidification prevention in the mouth of the content discharge port. It can be suitably used from the viewpoint of sex.

  FIG. 1 is a schematic sectional view showing an embodiment of a pump dispenser container that can be used in the present invention. The container of FIG. 1 includes a container main body 1 and a pump dispenser 2 attached to the upper opening thereof. The container main body 1 includes an outer layer 3 that forms an external shape, and a bag body 4 that is accommodated therein. Composed. The upper opening 5 of the bag 4 is in close contact with the bottom of the pump dispenser 2. Although not shown, at least one adhesive layer (consisting of an adhesive resin such as an acid-modified polyolefin-based adhesive resin) extending in a strip shape in the vertical direction from the container mouth to the bottom is provided between the container outer layer 3 and the bag body 4. The outer layer 3 and the bag body 4 of the container are bonded and fixed by this adhesive layer, but other portions are separable. In this container, by pressing the pressing part 6 of the pump dispenser 2 from above, the inside of the container body 1 is depressurized by the pump mechanism (not shown) in the pump dispenser 2 and the bag body 4 is contracted. A certain amount of the dentifrice composition filled in the bag 4 passes through a content inflow path (not shown) leading to the upper opening 5 of the bag 4 in close contact with the bottom of the pump dispenser 2. 7 is discharged outside the container. In addition, the overcap 8 can be put on the pump dispenser 2 as needed.

Here, as the material of the outer layer 3 of the container body, a material having such a hardness that the contents can be discharged, for example, polypropylene, low density polyethylene resin, high density polyethylene resin, polycarbonate, polyethylene terephthalate, etc. can be used. A density polyethylene resin is preferred. As a material of the bag body 4 filled with the contents, for example, a synthetic resin having low compatibility with the outer container layer 3 such as nylon, ethylene vinyl alcohol copolymer, polypropylene, low density polyethylene resin, high density polyethylene resin or the like. Nylon is particularly preferable although it can be used.
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 the pump dispenser 2, The shape according to use conditions is employable.
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.

  FIG. 2 is a schematic sectional view showing another embodiment of a pump dispenser container according to the present invention. This container does not include the bag body 4 in the container of FIG. 1 except that a tube 9 leading to the content inflow passage of the dispenser is provided, and the content accommodated in the container body rises through the tube 9 and is discharged from the content discharge port 7 ′. As the material of the tube, polyethylene, nylon, silicon, Teflon (registered trademark) or the like can be used, and silicon is particularly preferable. The tube diameter is preferably 3 to 10 mm, and particularly preferably 4 to 7 mm from the viewpoint of dischargeability.

  The container shown in FIG. 3 is described in Japanese Patent Publication No. 6-27057, and includes a container main body 11 and a pump dispenser 12 attached to an upper opening of the container main body 11. The container main body 11 is an outer layer that forms an external shape. The content filling part 14 inside 13 is filled with the contents, and the upper opening 15 of the composition filling part 14 is in close contact with the bottom of the pump dispenser 12. Further, a movable bottom portion 16 is slidably and airtightly installed at the bottom of the container body 11, and the movable bottom portion 16 rises in the container body 11 in accordance with the reduced pressure inside the container body 11. In this container, when the pressing portion 17 of the pump dispenser 12 is pressed from above, the inside of the container main body 11 is depressurized by the pump mechanism (not shown) in the pump dispenser 12, and the movable bottom surface portion 16 is raised. By doing so, a certain amount of the dentifrice composition filled in the content filling portion 14 is discharged from the content discharge port 18 through a content inflow passage (not shown) leading to the upper opening 15 of the container. Is.

As the material of the container body 11, polyethylene, polypropylene, polyethylene terephthalate, nylon, high-density polyethylene resin, and the like can be used, and high-density polyethylene resin is particularly preferable.
As a material of the pump dispenser 12, polyethylene, polypropylene, polyethylene terephthalate, high-density polyethylene resin, and the like can be used, and polypropylene is particularly preferable.

In the pump dispenser container, the diameter of the content outlet is preferably 2 to 10 mm, and particularly preferably 3 to 5 mm from the viewpoint of preventing solidification at the mouth. By using such a narrow caliber, it is possible to more effectively prevent the dentifrice composition from being solidified at the mouth of the container contents discharge port, the discharge amount can be controlled more easily, and the dentifrice composition can be controlled with a toothbrush. It becomes easier to place on top.
Moreover, it is preferable that the diameter of the content inflow path in the pump dispenser is 2 to 10 mm, particularly 3 to 7 mm because the content can be discharged well.
The height and width of the container body of the pump dispenser container are not particularly limited, but the height is preferably 50 to 150 mm, particularly 80 to 120 mm, and the width is 20 to 60 mm, particularly 30 to 50 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 addition,% in an Example is the mass% unless there is particular notice. In Tables 1 to 3, glycerin was used with a pure content of 85%, sorbite with a pure content of 70%, and other components with a pure content of 100%.

Examples and comparative examples
The toothpaste compositions having the compositions shown in Tables 1 to 3 below were prepared by the production method shown below, and the resulting dentifrice composition was discharged from the pump dispenser, the mouth was solidified by the pump dispenser, and was used in a toothbrush. Tannin iron stain cleaning power, foaming during brushing, and irritation to oral mucosa during brushing were evaluated by the following methods. The results are shown in Tables 1-3.

Preparation of test dentifrice composition:
(1) Water-soluble components (excluding binder, propylene glycol, etc.) were mixed and dissolved at room temperature in purified water, and glycerin was added and mixed to prepare Phase A.
(2) A phase B in which a binder and a preservative were dispersed at room temperature in propylene glycol was prepared.
(3) B phase was added and mixed in A phase under stirring, and C phase was prepared.
(4) In phase C, ingredients other than water-soluble ingredients such as fragrances, abrasives, and surfactants are mixed at room temperature using a 1.5 L kneader (manufactured by Ishiyama Kogakusho) and subjected to reduced pressure (5.3 kPa). Defoaming was performed to obtain 1.2 kg of a dentifrice composition. In addition, regarding the dentifrice composition (Example 2) which does not contain propylene glycol in a composition, a binder and antiseptic | preservative were added and mixed in polyethyleneglycol 400, and C phase was prepared.
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.

(1) Evaluating method of dischargeability from pump dispenser container 100 g of the dentifrice composition having the composition shown in Tables 1 to 3 is filled in the pump dispenser container shown in FIG. It was evaluated by. (I) Emission is very good, (ii) Emission is good, (iii) Emission is bad, and (iv) Emission is very bad. 4 points, 3 points for good discharge, 2 points for poor discharge, 1 point for very poor discharge, evaluate the discharge from pump dispenser containers based on the following criteria from the average score of 10 people did.
As the pump dispenser container shown in FIG. 1, the material of the container outer layer 3: high density polyethylene resin, the material of the bag body 4: nylon, the material of the pump dispenser 2: polypropylene, the height of the container (D): 145 mm, the container The width (L): 40 mm, the diameter of the contents discharge port 7: 3 mm, and the diameter of the contents inflow path: 5 mm were used.

Criteria for evaluating discharge from pump dispenser container ◎: Average point of 3.5 points or more and 4.0 points ○: Average point of 3.0 points or more and less than 3.5 points △: Average point of 2.0 points or more and 3.0 points Less than ×: Average score of 1.0 or more and less than 2.0

(2) Mouth solidification property evaluation method of pump dispenser container Each of the pump dispenser containers shown in FIGS. 1 and 3 is filled with 100 g of a dentifrice composition having the composition shown in Tables 1 to 3, and in a constant temperature bath at 25 ° C. and 20 RH%. The dentifrice composition was discharged from the contents discharge port of the container continuously for 10 days, and the degree of solidification of the mouth of the pump dispenser container after 10 days was visually evaluated by 10 subjects. Evaluation is as follows: (i) The mouth does not solidify at all and the toothpaste composition discharges very well, (ii) The mouth solidifies slightly but the toothpaste composition discharges well, (iii) The mouth solidifies and dentifrice composition Responses were obtained in four stages: poor product discharge, (iv) solidified mouth and no dentifrice composition discharged. Of these answers, the mouth does not solidify at all and the toothpaste composition has a very good discharge performance, 4 points, the mouth solidifies slightly but the toothpaste composition has a good discharge property, 3 points, the mouth solidifies the dentifrice composition 1 point is that the mouth is solidified and the dentifrice composition is not discharged, and each composition is filled into 10 containers, 5 in each of the containers shown in FIGS. From the average point of the minute, the mouth solidification was evaluated according to the following criteria.
In this evaluation test, as the pump dispenser container shown in FIG. 1, the material of the container outer layer 3: high density polyethylene resin, the material of the bag 4: nylon, the material of the pump dispenser 2: polypropylene, the height of the container (D ): 145 mm, container width (L): 40 mm, diameter of contents discharge port 7: 3 mm, diameter of contents inflow path: 5 mm. As the pump dispenser container shown in FIG. 3, the material of the container body 11: high density polyethylene resin, the material of the pump dispenser 12: polypropylene, the container height (D): 150 mm, the container width (L): 40 mm, the content outlet 18 The diameter was 3 mm, and the content inflow path was 5 mm.

Evaluation criteria for mouth solidification property of pump dispenser container ◎: Average point 3.5 points to 4.0 points ○: Average point 3.0 points to less than 3.5 points △: Average point 2.0 points to 3.0 points Less than ×: Average score of 1.0 or more and less than 2.0

(3) Usability evaluation method with a toothbrush (ease of placing on a toothbrush, difficulty of dripping from a toothbrush)
The pump dispenser container shown in FIG. 1 is filled with 100 g of the dentifrice composition having the composition shown in Tables 1 to 3, and 0.5 g of the dentifrice composition is discharged from the contents discharge port of the pump dispenser container and taken on the toothbrush. The ease of placing and the degree of sag from the toothbrush 30 seconds after placing on the toothbrush were evaluated. As the toothbrush, a Clinica toothbrush (Lion Corporation, flat 3 rows) was used. (I) Easy to put on a toothbrush and does not hang down from the toothbrush at all, (ii) Easy to put on the toothbrush and hardly hangs down from the toothbrush, (iii) Difficult to put on the toothbrush and falls slightly off the toothbrush, (iv) Difficult to put on the toothbrush The answer was obtained in four stages: almost dripping from the toothbrush. Among these answers, (i) 4 points that are easy to put on the toothbrush and not dripping from the toothbrush, (ii) 3 points that are easy to put on the toothbrush and hardly drip from the toothbrush, (iii) a little bit from the toothbrush The feeling of use was evaluated according to the following criteria based on the average score of 10 toothbrushes, with 2 points falling down and (iv) 1 point being hardly dropped on the toothbrush.
In this evaluation test, the material of the container outer layer: high density polyethylene resin, the material of the bag body: nylon, and the material of the pump dispenser: polypropylene were used as the pump dispenser container shown in FIG. A container having a height (D) of 145 mm, a container width (L) of 40 mm, a diameter of the contents discharge port 7 of 3 mm, and a diameter of the contents inflow path of 5 mm was used.

Evaluation standard of usability with toothbrushes ◎: Average point 3.5 points or more and 4.0 points or less ○: Average point 3.0 points or more and less than 3.5 points △: Average point 2.0 points or more and less than 3.0 points ×: Average point 1.0 point or more and less than 2.0 point

(4) Test method for evaluating tannin iron stain cleaning power (4-1): Preparation method of tannin iron stain-attached hydroxyapatite pellets Hydroxyapatite pellet surface (Pentax, diameter 7 mm x thickness 3.5 mm) by sandblasting After the treatment, it was washed with an ultrasonic cleaner in an aqueous 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 prepared in 1200 mL of boiled ion-exchanged water, 50 g of Japanese tea (brand: Oimatsu), 5 bags of black tea (Brisk tea bag manufactured by Lipton), instant coffee (Nescafe (trade name), Nestlé Japan) (Made) 12g was put and left overnight, and Japanese tea and black tea were removed by filtration. The color of the surface of the produced colored pellet was measured, and the value was defined as L1.

(4-2) Evaluation method of tannin iron stain removal effect The dentifrice composition of the composition shown to Tables 1-3 was diluted with twice the amount of ion-exchange water, and the dentifrice dispersion liquid was produced. The tannin-iron-stained hydroxyapatite pellets produced by the above method are immersed in a dentifrice dispersion and brushed 200 times with an automatic polishing tester (manufacturer, weight, temperature) set with a flat toothbrush (PC CLINICA). The Lab value (L2) of the subsequent pellet was measured. The tannin iron stain removal rate was calculated from the following formula, and the tannin iron stain removal rate was evaluated according to the following criteria.
Tannin iron stain removal rate (%) = [(L2-L1) / (L0-L1)] × 100

Evaluation standard of tannin iron stain removal effect (stain cleaning ability) ◎: Tannin iron stain removal rate of 50% or more ○: Tannin iron stain removal rate of 40% or more and less than 50% △: Tannin iron stain removal rate of 30% or more and less than 40% × : Tannin iron stain removal rate less than 30%

(5) Evaluation method of foaming at the time of dentifrice About 10 subjects, about 1 g of the dentifrice composition having the composition shown in Table 2 was taken on a toothbrush, and the foaming when brushing for 3 minutes was performed. , (Ii) good foaming, (iii) slightly foaming, and (iv) few foaming, answers were obtained. Of these answers, 4 points for very good foaming, 3 points for good foaming, 2 points for slightly foaming, and 1 point for low foaming, gave a feeling of use based on the following criteria from the average score of 10 people: evaluated.
◎: Average point 3.5 points or more and 4.0 points or less ○: Average point 3.0 points or more and less than 3.5 points △: Average point 2.0 points or more and less than 3.0 points ×: Average point 1.0 points More than 2.0 points

(6) Evaluation method of irritation to oral mucosa Using 10 subjects who are sensitive to mucosal irritation, about 1 g of each dentifrice composition shown in Table 2 was taken on a toothbrush and stimulated to oral mucosa when brushing for 3 minutes. (I) 1 point for strong stimulation, 2 points for (ii) feeling stimulation, 3 points for (iii) almost no stimulation, and (iv) 4 points for not feeling stimulation. The irritation to the oral mucosa was evaluated from the average score of the names according to the following criteria.
◎: Average point 3.5 points or more and 4.0 points or less ○: Average point 3.0 points or more and less than 3.5 points △: Average point 2.0 points or more and less than 3.0 points ×: Average point 1.0 points More than 2.0 points

Glycerin (pure content 85%): Lion Oreo Chemical Co., Ltd. sorbit (pure content 70%): Towa Kasei Kogyo Co., Ltd. propylene glycol: Asahi Glass Co., Ltd. polyethylene glycol 400: Daiichi Kogyo Seiyaku Co., Ltd. Silica anhydride: manufactured by Taki Chemical Co., Ltd. Mica titanium: manufactured by Merck Co., Ltd. (trade name: MP-149, average particle size: 75 μm)
Sodium lauryl sulfate: manufactured by Toho Chemical Industry Co., Ltd.

1, 1 ', 11 Container body 2, 12 Pump dispenser 3, 13 Outer layer 4 Bag body 5, 15 Upper opening 6, 17 Pressing part 7, 7', 18 Contents discharge port 8 Overcap 9 Tube 14 Contents filling Part 16 Movable bottom

Claims (8)

  A dentifrice composition for filling a pump dispenser container, comprising a container main body for containing the contents and a pump dispenser, wherein the contents are discharged from the discharge port when the pump dispenser is pressed, wherein (A) glycerin, (B) viscosity It contains sorbitol as a thickener and propylene glycol and / or polyethylene glycol having an average molecular weight of 190 to 630, (C) a silica-based abrasive, and (D) titanium mica having an average particle size of 10 to 100 μm, (A) And the total compounding quantity of (B) component is 30-55 mass%, and the mass ratio of (A) / (B) is 0.5-2.0, and the compounding quantity of (C) component is 10-25 mass%. The dentifrice composition whose compounding quantity of (D) component is 0.03-3 mass%, and whose viscosity in 25 degreeC of a composition is 40-180 poise.   (B) The dentifrice composition of Claim 1 whose content of a thickener is 12.5-30 mass% of the whole composition.   (A) The dentifrice composition of Claim 1 or 2 whose content of glycerol is 12.5-27.2 mass% of the whole composition.   The dentifrice composition according to claim 1, 2 or 3, wherein the thickening agent as component (B) contains 10 to 26% by mass of propylene glycol and / or polyethylene glycol having an average molecular weight of 190 to 630.   The dentifrice composition according to any one of claims 1 to 4, wherein the content of sorbit as a thickener of the component (B) is 11.9 to 21% by mass of the whole composition.   The dentifrice composition according to any one of claims 1 to 5, further comprising (E) lauryl sulfate.   The dentifrice composition according to any one of claims 1 to 6, wherein the dentifrice composition is in a gel form.   The dentifrice composition according to any one of claims 1 to 7, wherein a diameter of a content discharge port of the pump dispenser container is 2 to 10 mm.