WO2010073975A1 - 練歯磨組成物 - Google Patents
練歯磨組成物 Download PDFInfo
- Publication number
- WO2010073975A1 WO2010073975A1 PCT/JP2009/071093 JP2009071093W WO2010073975A1 WO 2010073975 A1 WO2010073975 A1 WO 2010073975A1 JP 2009071093 W JP2009071093 W JP 2009071093W WO 2010073975 A1 WO2010073975 A1 WO 2010073975A1
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- WIPO (PCT)
- Prior art keywords
- toothpaste composition
- sodium
- component
- mass
- foam
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/046—Aerosols; Foams
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/25—Silicon; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/26—Aluminium; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
- A61K8/463—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/86—Polyethers
Definitions
- the present invention relates to a toothpaste composition excellent in feeling of use (fast foaming, foam persistence, foam creamy feeling) and excellent in ease of placement on a toothbrush (no stringiness). .
- the feel of foam in the oral cavity is one of the textures that can make you feel clean.
- saliva is always secreted into the oral cavity, and if the brush is polished for a long time, the dentifrice is diluted with the saliva, so that the foam does not last and the cleaning feeling decreases.
- the creamy feeling of foam was not felt and it was inferior to the polished satisfaction.
- Patent Document 1 Japanese Patent Laid-Open No. Hei. No. 11-209255
- Patent Document 1 Japanese Patent Laid-Open No. Hei. No. 11-209255
- the present invention has been made in view of the above circumstances, and is excellent in the speed of foaming when brushing teeth, the sustainability of foam and the creamy feeling of foam, and excellent ease of placement on a toothbrush (no stringiness).
- An object is to provide a dentifrice composition.
- the present inventors have determined that the viscosity of a 5 mass% aqueous solution at 25 ° C. measured with a Brookfield viscometer is 600-8. , 800 mPa ⁇ s, or a highly polymerized polyethylene glycol having a viscosity of 400 to 800 mPa ⁇ s at 25 ° C. measured at 25 ° C.
- Toothpaste compositions containing highly polymerized polyethylene glycol are disclosed in Patent Documents 2 to 5 (Patent Document 2: JP-A-5-194165, Patent Document 3: JP-A-6-72836, Patent Document 4: Special Table). No. 2006-501044 and Japanese Patent Application Laid-Open No. 2006-506359).
- Patent Document 2 discloses a dentifrice composition containing a dicalcium phosphate compound and a peroxide and having excellent tooth whitening and polishing properties, and a polyoxyethylene polyoxypropylene block copolymer and poly (ethylene oxide) as a thickener. ) It is described that a resin is blended, and fumed colloidal silica is described as a thickener. Patent Document 3 describes blending poly (ethylene oxide) having a molecular weight of 500,000 to 4,000,000 as a nonionic compound into a non-irritating oral composition having high foaming properties. However, this technique includes a sodium lauryl sulfoacetate surfactant as a surfactant in place of sodium lauryl sulfate, and has improved foaming properties.
- Patent Documents 4 and 5 propose oral compositions that are pumped and used in an integrated oral treatment system
- Patent Document 4 discloses resin polyethylene glycol, hectorite and derivatives thereof, bentonite and components thereof as thickening components. Derivatives are exemplified, and in Patent Document 5, polyoxyethylene having a molecular weight exceeding 200,000 is described as a surfactant, and these examples show a composition containing sodium alkyl sulfate.
- Patent Documents 2 to 5 are combined with the components (A) to (C) of the present invention, thereby having excellent foaming speed when brushing teeth, persistence of foam and foamy creamy feeling, and It is not shown that a toothpaste composition that is easy to put on a toothbrush (no spinnability) is obtained.
- the toothpaste composition described in patent documents 2 and 3 is inferior to the toothpaste composition of the present invention compared with the toothpaste composition of the present invention.
- the described liquid dentifrice is inferior in the ease of placing on a toothbrush, and in any case, the object of the present invention is not achieved.
- Aluminum silicate thickening components such as highly polymerized polyethylene glycol, alkyl sulfates, thickening silica, bentonite and the like are known as blending components of dentifrice compositions, but as is clear from the examples described later, By combining the components (A) to (C), it has excellent foaming speed when brushing teeth, persistence of foam and creamy feeling of foam, and ease of placement on a toothbrush (of stringiness) The object of the present invention cannot be achieved when any component is lacking or when the blending amount of highly polymerized polyethylene glycol is inappropriate.
- the present invention provides the following toothpaste compositions.
- (A) The viscosity of a 5 mass% aqueous solution at 25 ° C. measured with a Brookfield viscometer is 600 to 8,800 mPa ⁇ s, or the viscosity of a 2 mass% aqueous solution at 25 ° C. measured with the viscometer is 400 Highly polymerized polyethylene glycol having a viscosity of ⁇ 800 mPa ⁇ s,
- B alkyl sulfate,
- (A) component content is 0 1.
- a toothpaste composition characterized by being 1 to 2% by mass.
- Claim 2 The toothpaste composition according to claim 1, wherein the aluminum silicate thickening component is at least one selected from bentonite, kaolin, and aluminum magnesium silicate.
- Claim 3 The toothpaste composition according to claim 1, wherein the aluminum silicate thickening component is bentonite.
- Claim 4 The toothpaste composition according to claim 1, 2 or 3, wherein the component (B) is sodium lauryl sulfate and / or sodium myristyl sulfate.
- Claim 5 The toothpaste composition according to any one of claims 1 to 4, comprising 0.5 to 2.5% by mass of component (B) and 0.1 to 6% by mass of component (C).
- Claim 6 The toothpaste composition according to any one of claims 1 to 5, further comprising (D) sodium chloride.
- the toothpaste composition of the present invention is excellent in the speed of foaming at the time of tooth brushing, the persistence of foam and the creamy feeling of foam, has high foam performance, and is easy to put on a toothbrush (no spinnability) Also excellent.
- the toothpaste composition of the present invention contains (A) a highly polymerized polyethylene glycol, (B) an alkyl sulfate, and (C) a thickening silica and / or an aluminum silicate-based thickening component.
- the viscosity of a 5 mass% aqueous solution at 25 ° C. measured with a Brookfield viscometer is 600 to 8,800 mPa ⁇ s, preferably 4,500 to 8 800 mPa ⁇ s, or the viscosity of a 2% by mass aqueous solution at 25 ° C. measured with the viscometer is 400 to 800 mPa ⁇ s.
- the viscosity of the highly polymerized polyethylene glycol any one of the viscosity of the 5% by mass aqueous solution described above and the viscosity of the 2% by mass aqueous solution may be within the above range.
- a commercially available product can be used as the highly polymerized polyethylene glycol, for example, POLYOX WSR N-750 from Dow Chemical Company (viscosity of 5 mass% aqueous solution: 600 to 1,200 mPa ⁇ s, measuring instrument: Brookfield RVF, rotor No. 2). , Rotation speed 10 rpm, measurement temperature 25 ° C., measurement time 3 minutes), POLYOX WSR-205 (viscosity of 5 mass% aqueous solution: 4,500-8,800 mPa ⁇ s, measurement equipment: Brookfield RVF, rotor No.
- the highly polymerized polyethylene glycol may be used alone or in combination of two or more, and the blending amount is 0.1 to 2% (mass%, the same applies hereinafter) of the total composition, preferably 0.00. 5 to 1.5%. If the blending amount is less than 0.1%, sufficient foam creaminess and sustaining effect cannot be exhibited, and if it exceeds 2%, the spinnability becomes strong.
- alkyl sulfate those having 8 to 18 carbon atoms, particularly 12 to 14 carbon atoms of the alkyl group are suitable, and alkali metal salts such as sodium salts and potassium salts are used. If the alkyl group has less than 8 carbon atoms, the irritation may be felt during use or the taste may be worse, and if it exceeds 18, the stability of the preparation such as liquid separation may be inferior.
- alkyl sulfate examples include potassium lauryl sulfate, sodium lauryl sulfate, triethanolamine lauryl sulfate, sodium myristyl sulfate, sodium cetyl sulfate and the like, and particularly sodium lauryl sulfate and myristyl from the viewpoint of solubility and usability.
- Sodium sulfate is preferable, and sodium lauryl sulfate (manufactured by Toho Chemical Co., Ltd., Nikko Chemicals Co., Ltd., etc.) is most preferable.
- the blending amount of the alkyl sulfate is preferably 0.5 to 2.5%, particularly 0.8 to 2% of the whole composition. If the blending amount is less than 0.5%, foaming is weak and the foam lasting effect may be inferior, and if it exceeds 2.5%, the feeling of use may be worsened such as irritation in the oral cavity.
- Component (C) is a thickening silica and / or aluminum silicate-based thickening component.
- the thickening silica anhydrous silicic acid
- the aluminum silicate-based thickening component kaolin-based or smectite-based natural minerals or synthetic products can be used, and examples include bentonite, kaolin, and aluminum magnesium silicate. These can be used singly or in combination of two or more. Among them, thickened silica and / or bentonite are preferable.
- thickening silica either wet method silica or dry method silica can be used, but wet method silica is particularly preferable. Furthermore, wet process silica includes precipitated silica and silica gel, and precipitated silica is preferred. Those obtained by known production methods can be used.
- the thickening silica those having a liquid absorption of 2.0 to 3.0 ml / g, particularly 2.0 to 2.6 ml / g are suitable.
- the liquid absorption amount is smaller than 2.0 ml / g, the creaminess of the foam may be inferior, and when larger than 3.0 ml / g, the foaming may be delayed.
- the liquid absorption here was defined as follows. That is, 1.0 g of a sample was weighed on a clean glass plate, and the sample was mixed with a stainless steel spatula while dropping 42.5% glycerin little by little using a microburette. The amount of liquid (ml) required until the sample became one lump and peeled cleanly from the glass plate with a spatula was taken as the liquid absorption amount.
- the thickening silica can be used as the thickening silica.
- SORBOSIL TC15 from INEOS
- TIXOSIL 43 from Rhodia
- Zeodent 113 from Huber
- Carplex # 47 from DSL, etc.
- the blending amount of the thickening silica is preferably 0.5 to 6%, particularly 1 to 3% of the total composition.
- Bentonite is a naturally occurring colloidal hydrous aluminum silicate, which is a clay mainly composed of montmorillonite (a kind of clay mineral) and mixed with quartz, feldspar and cristobalite.
- bentonite commercially available products such as Kunipia G and Kunipia F manufactured by Kunimine Kogyo Co., Ltd. can be used. Among these, Kunipia F is preferable.
- the blending amount of bentonite is preferably 0.1 to 5%, particularly 0.1 to 1% of the total composition.
- Kaolin is a naturally occurring hydrous aluminum silicate, and is an aluminum hydrous silicate mineral represented by Al 2 Si 2 O 5 (OH) 4 .
- kaolin for example, a commercially available product such as kaolin from Katsumiyama Mining Co., Ltd. can be used.
- the blending amount of kaolin is preferably 0.1 to 5%, particularly 0.1 to 1% of the total composition.
- Saponite is preferably used as the aluminum magnesium silicate.
- Saponite is a clay mineral composed mostly of fine crystals of layered silicate, but may be natural or synthetic.
- combination saponite can use what was synthesize
- aluminum magnesium silicate commercially available products such as smecton SA, which is a synthetic saponite of Kunimine Industry Co., Ltd., can be used.
- the compounding amount of aluminum magnesium silicate is preferably 0.1 to 5%, particularly 0.1 to 1% of the total composition.
- the total amount of component (C) is preferably 0.1 to 6%, particularly preferably 0.5 to 3.0% of the total composition. If it is less than 0.1%, the spinnability will occur and it will be difficult to place it on the toothbrush. When it exceeds 6%, foaming may be delayed or the foam may be difficult to sustain.
- Sodium chloride can use a commercial item, for example, it can be obtained from Nihonkaikai Co., Ltd., Tomita Pharmaceutical Co., Ltd., etc.
- the shape of sodium chloride is not particularly limited, and it may be dissolved in the toothpaste composition or may be dispersed in a solid state.
- the amount of sodium chloride is preferably 0.1 to 20%, particularly 1 to 10% of the total composition. If it is less than 0.1%, it may not be possible to satisfactorily increase the feeling of tightening the gums. If it exceeds 20%, foaming will be slow, foamy feeling will be weak, or foam will be difficult to sustain. There is.
- the oral composition of the present invention may be blended with various other components that are usually used in dentifrice compositions, as long as the effects of the present invention are not impaired. it can.
- binders other than the component (C) binders other than the component (C)
- surfactants other than the component (B) surfactants other than the component (B)
- abrasives abrasives
- thickeners other than the component (A) sweeteners, fragrances, pH adjusters, effective Ingredients or medicinal ingredients, preservatives, etc.
- binder in addition to thickening silica and aluminum silicate thickening ingredients of inorganic binder, xanthan gum, polyvinylpyrrolidone, carrageenan, methylcellulose, sodium hydroxyethylcellulose, sodium alginate, tragacanth gum, karaya gum, arabiya gum, locust bean Organic binders such as gum, polyvinyl alcohol, sodium polyacrylate, cross-linked sodium polyacrylate, carboxyvinyl polymer, carbopol, and bee gum may be blended.
- the compounding amount of the binder is preferably 0.2 to 8.0% of the entire composition including the component (C).
- anionic surfactants include sodium N-lauroyl sarcosate other than alkyl sulfates, sodium N-myristol sarcosinate, sodium dodecylbenzene sulfonate, hydrogenated coconut fatty acid sodium monoglyceride monosulfate, sodium lauryl sulfoacetate, ⁇
- N-acyl glutamates such as sodium olefin sulfonate and sodium N-palmitoyl glutamate
- N-acyl taurates such as sodium N-methyl-N-acyl taurate.
- the cationic surfactant include alkyl ammonium and alkyl benzyl ammonium salts.
- Nonionic surfactants include polyglycerin fatty acid esters, sucrose fatty acid esters, sucrose fatty acid esters such as maltose fatty acid esters, sugar alcohol fatty acid esters such as maltitol fatty acid esters and lactol fatty acid esters, alkylol amides, polyoxy Polyoxyethylene sorbitan fatty acid ester such as ethylene sorbitan monostearate, polyoxyethylene fatty acid ester such as polyoxyethylene hydrogenated castor oil, fatty acid diethanolamide such as lauric acid mono- or diethanolamide, sorbitan fatty acid ester, polyoxyethylene higher alcohol ether , Polyoxyethylene polyoxypropylene copolymer, polyoxyethylene polyoxypropylene fatty acid ester, pluronic and the like.
- the surfactant may not be blended and may be 0%. However, when blended, the total blending amount of the component (B) with the alkyl sulfate salt is 0.5 to 5% of the total composition, particularly 0. It is preferable to blend in the range of 8 to 3%.
- dibasic calcium phosphate dihydrate and anhydrate calcium phosphate compounds such as primary calcium phosphate, tertiary calcium phosphate, calcium pyrophosphate, etc.
- the liquid absorption is 0.1 to 1.6 ml / g
- Silica-based abrasives such as precipitated silica other than thickening silica, calcium carbonate, calcium hydroxide, aluminum hydroxide, tertiary magnesium phosphate, magnesium carbonate, calcium sulfate, etc. it can.
- the blending amount of the abrasive is usually 0 to 50%, particularly 2 to 40% of the whole composition.
- (A) component such as sugar alcohol such as sorbitol, reduced starch saccharified product, glycerin, propylene glycol, polyethylene glycol having an average molecular weight of 200 to 6,000, ethylene glycol, 1,3-butylene glycol, etc.
- Polyhydric alcohols other than those can be blended singly or in combination of two or more.
- the amount of these thickeners is usually 15 to 60% with respect to the total amount of the composition.
- Sweetening agents include sodium saccharin, stevioside, stevia extract, paramethoxycinnamic aldehyde, neohesperidyl hydrochalcone, perlartin, glycyrrhizin, thaumatin, asparatylphenylalanine methyl ester and the like.
- the blending amount of the sweetener is usually 0.01 to 5% of the entire composition.
- fragrances As fragrances, menthol, anethole, carvone, eugenol, limonene, n-decyl alcohol, citronellol, ⁇ -terpineol, citronellyl acetate, cineol, linalool, ethyl linalool, crocodile, thymol, spearmint oil, peppermint oil, lemon oil, orange Oil, sage oil, rosemary oil, cinnamon oil, pimento oil, cinnamon leaf oil, perilla oil, winter green oil, clove oil, eucalyptus oil and the like.
- the blending amount of the fragrance in the composition can be 0.001 to 2%.
- Examples of the pH adjuster include organic acids such as citric acid, lactic acid and malic acid and salts thereof, and inorganic compounds such as hydrochloric acid, sodium hydroxide, potassium hydroxide, disodium hydrogen phosphate, and sodium dihydrogen phosphate. .
- Medicinal or active ingredients include enzymes other than dextranase such as dextranase, amylase, protease, mutanase, tranexamic acid, epsilon aminocaproic acid, aluminum chlorohydroxy allantoin, azulene, glycyrrhizinate, glycyrrhetinic acid, vitamins, etc.
- Anti-inflammatory agents copper chlorophyll, copper gluconate, cetylpyridinium chloride, benzalkonium chloride, triclosan, hinokitiol, lysozyme chloride, etc.
- anticalculus agents such as pyrophosphates, polyphosphates, glycine, proline, etc. Of amino acids can be added.
- preservative examples include paraoxybenzoic acid esters such as methylparaben, ethylparaben, and propylparaben, benzoic acid such as sodium benzoate, and salts thereof.
- inorganic compounds such as calcium hydrogen phosphate, zeolite, and hydroxyapatite, granulated products thereof, granulated products of organic powders such as crystalline cellulose, agar, gelatin, starch, Natural polymer compounds such as mannan, synthetic polymer compounds such as polyvinyl acetate, acrylic, polyurethane, polyester, polyamide, nylon, polyvinyl chloride, and copolymers thereof, carnauba wax, rosin, rice wax, microcrystalline wax , Waxes such as beeswax and paraffin wax, higher alcohols such as cetanol and stearyl alcohol, latex rubbers such as polyisobutylene, polybutadiene, urethane, silicone and natural rubber obtained by crosslinking, polymerization, molding, etc.
- Natural polymer compounds such as mannan, synthetic polymer compounds such as polyvinyl acetate, acrylic, polyurethane, polyester, polyamide, nylon, polyvinyl chloride, and copolymers
- Lame films include organic resin laminated film powder, laminated film powder in which a vapor deposition layer such as aluminum is introduced into the organic resin laminated film, specifically, polyethylene terephthalate / polymethyl methacrylate laminated film powder, polyethylene terephthalate ⁇ Aluminum / epoxy laminated powder or the like can be blended within a range not impeding the effects of the present invention.
- the present invention will be specifically described with reference to examples and comparative examples, but the present invention is not limited to the following examples.
- the blending amount is mass%.
- Toothpaste compositions having the compositions shown in Tables 1 to 4 were prepared by a conventional method, and oral dispersibility, foam persistence and stability over time (discoloration) were evaluated by the following methods. The results are shown in Tables 1 to 4. The raw materials used are as shown below.
- a test toothpaste composition filled in an 8 mm diameter laminated tube was extruded on a toothbrush by about 1.5 cm, and then the length of the kneaded product was measured by pulling the yarn when the tube was lifted up, and evaluated according to the following evaluation criteria. did.
- X The length of the kneaded with the thread pulled is 2.0 cm or more.
- the raw materials used in the following examples are as follows. Highly polymerized polyethylene glycol; POLYOX WSR-205; Dow Chemical Co., Ltd. POLYOX WSR N-750; Dow Chemical Co., Ltd. POLYOX WSR N-12K; Dow Chemical Co., Ltd. POLYOX WSR N-10; Dow Chemical Co., Ltd. POLYOX WSR N-60K; ⁇ Sodium lauryl sulfate manufactured by Chemical Co .; Sodium lauryl sulfate manufactured by Toho Chemical Industry Co., Ltd. Sodium myristyl sulfate; NIKOL SMS manufactured by Nippon Chemicals Co., Ltd. Thickening anhydrous silicic acid; Tokuyama Soda Co., Ltd.
- Tokusil precipitating silica, liquid absorption amount: 2.50 ml / g
- Bentonite Kunimine Industry Co., Ltd. Kunipia F Kaolin; Katsumiyama Mining Co., Ltd. Kaolin Aluminum Magnesium Silicate; Kunimine Industry Co., Ltd.
- Smecton SA Synthetic saponite N-lauroylmethyl taurine sodium; NIKKOL LMT manufactured by Nippon Chemicals Co., Ltd. N-lauroylmethylalanine sodium; NIKKOL LN-30 manufactured by Nippon Chemicals Co., Ltd.
- Abrasive silicic acid; Zeodent 113 liquid absorption amount: 0.95 ml / g) manufactured by Huber
- Viscosity measurement conditions of POLYOX WSR-205 Measuring instrument: Brookfield RVF viscometer, aqueous solution concentration: 5% by mass, rotor used; 2, rotation speed: 2 rpm, measurement time: 10 minutes, 25 ° C. * 2) Viscosity measurement conditions of POLYOX WSR N-750: Measuring instrument: Brookfield RVF viscometer, aqueous solution concentration: 5% by mass, rotor used; 2, rotational speed: 10 rpm, measurement time: 3 minutes, 25 ° C.
- Examples 26 to 34 A toothpaste composition having the composition shown in Table 5 was prepared by a conventional method, and the intraoral dispersibility, foam persistence and stability over time (discoloration) were evaluated in the same manner as above. Further, the following method was used to evaluate the feeling of tightening the gums. The results are shown in Table 5. In addition, the use raw material in the following example is the same as that of the above, and sodium chloride used the Kamata Pharmaceutical Co., Ltd. sodium chloride.
- Evaluation was conducted by a sensory test using 10 professional panelists.
- the test toothpaste composition filled in a laminated tube having an aperture of 8 mm was placed on a toothbrush by about 1.5 cm and used in a normal brushing method.
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Abstract
Description
請求項1;
(A)ブルックフィールド型粘度計で測定した25℃における5質量%水溶液の粘度が600~8,800mPa・sであるか、又は前記粘度計で測定した25℃における2質量%水溶液の粘度が400~800mPa・sである高重合ポリエチレングリコールと、(B)アルキル硫酸塩と、(C)増粘性シリカ及び/又はケイ酸アルミニウム系増粘成分とを含有し、(A)成分の含有量が0.1~2質量%であることを特徴とする練歯磨組成物。
請求項2;
ケイ酸アルミニウム系増粘成分が、ベントナイト、カオリン、及びケイ酸アルミニウムマグネシウムから選ばれる1種以上である請求項1記載の練歯磨組成物。
請求項3;
ケイ酸アルミニウム系増粘成分がベントナイトである請求項1記載の練歯磨組成物。
請求項4;
(B)成分が、ラウリル硫酸ナトリウム及び/又はミリスチル硫酸ナトリウムである請求項1、2又は3記載の練歯磨組成物。
請求項5;
(B)成分を0.5~2.5質量%、(C)成分を0.1~6質量%含有する請求項1乃至4のいずれか1項記載の練歯磨組成物。
請求項6;
更に、(D)塩化ナトリウムを含有する請求項1乃至5のいずれか1項記載の練歯磨組成物。
ブルックフィールド型粘度計で測定した25℃における5質量%水溶液の粘度が600mPa・sに満たない場合は泡のクリーミィ感に劣り、8,800mPa・sを超える場合は曳糸性が強く発現し、歯ブラシへの載せやすさが満足に改善しない。
2質量%水溶液の粘度が400mPa・sに満たない場合は泡のクリーミィ感に劣り、800mPa・sを超える場合は曳糸性が強く発現し、歯ブラシへの載せやすさが満足に改善しない。
増粘性シリカ(無水ケイ酸)として具体的には、フュームドシリカ、沈降性シリカ、シリカゲル等が挙げられる。
ケイ酸アルミニウム系増粘成分としては、カオリン系やスメクタイト系の天然鉱物又は合成品を使用でき、例えばベントナイト、カオリン、ケイ酸アルミニウムマグネシウム等が挙げられる。
これらは1種を単独で、又は2種以上を組み合わせて用いることができるが、中でも増粘性シリカ及び/又はベントナイトが好ましい。
ここでいう吸液量とは、以下のように定義した。即ち、試料1.0gを清浄なガラス板上に量りとり、ミクロビュレットを用いて、42.5%グリセリンを少量ずつ滴下しながらステンレス製のへらで均一になるように試料を混合した。試料が一つの塊となり、へらでガラス板よりきれいに剥がれるようになるまでに要した液量(ml)を吸液量とした。
増粘性シリカの配合量は、組成全体の0.5~6%、特に1~3%が好ましい。
ベントナイトとしては、市販品、例えば、クニミネ工業(株)のクニピアG、クニピアF等を使用でき、これらの中でもクニピアFが好適である。
ベントナイトの配合量は、組成全体の0.1~5%、特に0.1~1%が好適である。
カオリンの配合量は組成全体の0.1~5%、特に0.1~1%が好ましい。
ケイ酸アルミニウムマグネシウムの配合量は、組成全体の0.1~5%、特に0.1~1%が好ましい。
塩化ナトリウムは、市販品を用いることができ、例えば(株)日本海水、富田製薬(株)などから入手できる。塩化ナトリウムは、その形状は特に限定されず、練歯磨組成物中で溶解していても、固体状で分散していてもよい。
アニオン界面活性剤としては、アルキル硫酸塩以外のN-ラウロイルザルコシン酸ナトリウム、N-ミリストリルザルコシン酸ナトリウム、ドデシルベンゼンスルホン酸ナトリウム、水素添加ココナッツ脂肪酸モノグリセリドモノ硫酸ナトリウム、ラウリルスルホ酢酸ナトリウム、α-オレフィンスルホン酸ナトリウム、N-パルミトイルグルタルミン酸ナトリウム等のN-アシルグルタメート、N-メチル-N-アシルタウリンナトリウム等のN-アシルタウレート等が挙げられる。
カチオン界面活性剤としては、アルキルアンモニウム、アルキルベンジルアンモニウム塩等が挙げられる。
上記界面活性剤は配合しなくてもよく0%でもよいが、配合する場合は、(B)成分のアルキル硫酸塩との合計配合量が組成物全体の0.5~5%、特に0.8~3%となる範囲で配合することが好ましい。
研磨剤の配合量は通常、組成物全体の0~50%、特に2~40%である。
表1~4に示す組成の練歯磨組成物を常法にて調製し、口腔内分散性、泡の持続性及び経時安定性(変色)を下記方法で評価した。結果を表1~4に示す。なお、使用原料は下記に示すとおりである。
専門パネラー10人を用いた官能試験により評価した。口径8mmのラミネートチューブに充填した試験練歯磨組成物を歯ブラシ上に約1.5cm載せ、通常歯を磨く方法で使用し、磨き始めてから30秒後の泡立ちの程度について、以下に示す基準で評価した。
5点:十分に泡立った
4点:泡立った
3点:やや泡立った
2点:あまり泡立たなかった
1点:泡立たなかった
専門パネラー10人が評価した結果を平均した値を以下の基準で示した。
◎:平均点が4.5点以上5.0点以上
○:平均点が4.0点以上4.5点未満
△:平均点が3.0点以上4.0点未満
×:平均点が3.0点未満
専門パネラー10人を用いた官能試験により評価した。ラミネートチューブに充填した試験練歯磨組成物を歯ブラシ上に1g押出して載せ、普段と同じ方法で歯磨きし、2分後の口腔内における泡の感触について、以下に示す評価基準で評価した。
4点:泡があることを強く感じる
3点:泡があることを感じる
2点:泡があることをあまり感じない
1点:泡があることをほとんど感じない
専門パネラー10人が評価した結果を平均した値を以下の基準で示した。
◎:10人の平均点が3.5点以上
○:10人の平均点が3.0点以上3.5点未満
×:10人の平均点が3.0点未満
専門パネラー10人を用いた官能試験により評価した。口径8mmのラミネートチューブに充填した試験練歯磨組成物を歯ブラシ上に約1.5cm載せ、通常歯を磨く方法で使用し、泡のクリーミィ感の程度について、以下に示す基準で評価した。
5点:十分クリーミィ感がある
4点:クリーミィ感がある
3点:ややクリーミィ感がある
2点:あまりクリーミィ感がない
1点:クリーミィ感がない
専門パネラー10人が評価した結果を平均した値を以下の基準で示した。
◎:平均点が4.5点以上5.0点以下
○:平均点が4.0点以上4.5点未満
△:平均点が3.0点以上4.0点未満
×:平均点が3.0点未満
口径8mmのラミネートチューブに充填した試験練歯磨組成物を歯ブラシ上に約1.5cm押出した後、チューブを上に持ち上げたときの糸を引いた練の長さを測定し、下記評価基準で評価した。
◎:糸を引いた練の長さが1.0cm未満
○:糸を引いた練の長さが1.0cm以上2.0cm未満
×:糸を引いた練の長さが2.0cm以上
高重合ポリエチレングリコール;
POLYOX WSR-205;ダウ・ケミカル社製
POLYOX WSR N-750;ダウ・ケミカル社製
POLYOX WSR N-12K;ダウ・ケミカル社製
POLYOX WSR N-10;ダウ・ケミカル社製
POLYOX WSR N-60K;ダウ・ケミカル社製
ラウリル硫酸ナトリウム;東邦化学工業(株)製 ラウリル硫酸ナトリウム
ミリスチル硫酸ナトリウム;日本ケミカルズ(株)製 NIKKOL SMS
増粘性無水ケイ酸;徳山曹達(株)製 Tokusil(沈降性シリカ、吸液量;2.50ml/g)
ベントナイト;クニミネ工業(株) クニピアF
カオリン;勝光山鉱業所(株) カオリン
ケイ酸アルミニウムマグネシウム;
クニミネ工業(株) スメクトンSA(合成サポナイト)
N-ラウロイルメチルタウリンナトリウム;
日本ケミカルズ(株)製 NIKKOL LMT
N-ラウロイルメチルアラニンナトリウム;
日本ケミカルズ(株)製 NIKKOL LN-30
研磨性無水ケイ酸;ヒューバー社製 Zeodent 113(吸液量;0.95ml/g)
*2)POLYOX WSR N-750の粘度測定条件:測定機器;ブルックフィールド RVF型粘度計、水溶液濃度;5質量%、使用ローター;No.2、回転速度;10rpm、測定時間;3分、25℃
*3)POLYOX WSR N-12Kの粘度測定条件:測定機器;ブルックフィールド LVT型粘度計、水溶液濃度;2質量%、使用ローター;No.1、回転速度;10rpm、測定時間;3分、25℃
*4)ソルビット液(70%)の配合量は、有姿(溶液)としての配合量で示した(以下、同様。)。
*5)POLYOX WSR N-10の測定条件:測定機器;ブルックフィールド RVF型粘度計、水溶液濃度;5質量%、使用ローター;No.2、回転速度;10rpm、測定時間;3分、25℃
*6)POLYOX WSR N-60Kの測定条件:測定機器;ブルックフィールドLVT型粘度計、水溶液濃度;2質量%、使用ローター;No.1、回転速度;2rpm、測定時間;10分、25℃
*7)N-ラウロイルメチルアラニンナトリウム水溶液(30%)の配合量は、純分換算した配合量で示した。
表5に示す組成の練歯磨組成物を常法にて調製し、上記と同様に口腔内分散性、泡の持続性及び経時安定性(変色)を評価した。更に、下記方法で歯ぐきのひきしめ実感を評価した。結果を表5に示す。なお、下記例における使用原料は、上記と同様であり、塩化ナトリウムは冨田製薬社製 塩化ナトリウムを使用した。
専門パネラー10人を用いた官能試験により評価した。口径8mmのラミネートチューブに充填した試験練歯磨組成物を歯ブラシ上に約1.5cm載せ、通常歯を磨く方法で使用し、歯ぐきのひきしめ実感の程度について、以下に示す基準で評価した。
4点:歯ぐきのひきしめ実感を強く感じる
3点:歯ぐきのひきしめ実感を感じる
2点:歯ぐきのひきしめ実感をわずかに感じる
1点:歯ぐきのひきしめ実感を全く感じない
専門パネラー10人が評価した結果を平均した値を以下の基準で示した。
◎:平均点が3.5点以上4.0点以下
○:平均点が3.0点以上3.5点未満
△:平均点が2.0点以上3.0点未満
×:平均点が2.0点未満
Claims (6)
- (A)ブルックフィールド型粘度計で測定した25℃における5質量%水溶液の粘度が600~8,800mPa・sであるか、又は前記粘度計で測定した25℃における2質量%水溶液の粘度が400~800mPa・sである高重合ポリエチレングリコールと、(B)アルキル硫酸塩と、(C)増粘性シリカ及び/又はケイ酸アルミニウム系増粘成分とを含有し、(A)成分の含有量が0.1~2質量%であることを特徴とする練歯磨組成物。
- ケイ酸アルミニウム系増粘成分が、ベントナイト、カオリン、及びケイ酸アルミニウムマグネシウムから選ばれる1種以上である請求項1記載の練歯磨組成物。
- ケイ酸アルミニウム系増粘成分がベントナイトである請求項1記載の練歯磨組成物。
- (B)成分が、ラウリル硫酸ナトリウム及び/又はミリスチル硫酸ナトリウムである請求項1、2又は3記載の練歯磨組成物。
- (B)成分を0.5~2.5質量%、(C)成分を0.1~6質量%含有する請求項1乃至4のいずれか1項記載の練歯磨組成物。
- 更に、(D)塩化ナトリウムを含有する請求項1乃至5のいずれか1項記載の練歯磨組成物。
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WO2016136719A1 (ja) * | 2015-02-26 | 2016-09-01 | ライオン株式会社 | 歯磨剤組成物 |
JP2016155791A (ja) * | 2015-02-26 | 2016-09-01 | ライオン株式会社 | 歯磨組成物 |
KR20160120275A (ko) | 2014-03-03 | 2016-10-17 | 라이온 가부시키가이샤 | 치약 조성물 |
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EA038047B1 (ru) * | 2015-12-22 | 2021-06-29 | ЮНИЛЕВЕР АйПи ХОЛДИНГС Б.В. | Композиция зубной пасты |
CN108451777B (zh) * | 2017-02-21 | 2021-11-23 | 好维股份有限公司 | 一种美白凝胶口腔护理组合物 |
CN114224755B (zh) * | 2021-12-25 | 2023-05-02 | 广东百润和健康科技有限公司 | 一种含盐的护龈牙膏 |
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MY153902A (en) | 2015-04-15 |
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