JP2008050323A - Artificial tooth detergent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solid artificial tooth detergent composition which foams when being dissolved in water by containing a carbonate compound and an acid, and can be improved more in foaming power and easily controlled in the foaming power. <P>SOLUTION: The artificial tooth detergent composition contains polyvinylpyrrolidone (PVP) and polyethylene glycol (PEG) in the ratio PVP:PEG of 3:7-7:3 in weight ratio. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a denture cleaning composition used for cleaning and sterilizing dentures such as complete dentures, partial dentures and orthodontic appliances (hereinafter collectively referred to as “dentures”).

  While the denture is worn, not only food residue and coloring matter, but also dirt derived from oral microorganisms adheres. In order to remove such dirt, conventionally, a denture cleaning agent containing sodium lauryl sulfate as a surfactant has been used. More specifically, a composition comprising a surfactant and a bleach component, an enzyme, or the like. Further, a relatively inactive component such as a lubricant, an extender, a binder, a colorant, a dye and a fragrance is appropriately added to obtain a denture cleaning agent having a desired size, density or color and flavor.

  Further, in order to improve the physical cleaning effect, a foaming cleaning agent is prepared by further adding a carbon dioxide generating mixture comprising a carbonate compound and an acid to the composition containing the activator component. .

  As a result, the stain attached to the denture can be bleached, sterilized, disinfected, proteolytically decomposed, carbohydrates by the combined action of the surface tension reducing function by the surfactant, the physical action of the foaming agent, and the action of other active ingredients. It is possible to clean with an effect such as decomposition.

  However, in such a foam-type cleaning agent, it is very difficult to control the foaming power (the amount of foam generated) by the composition and to set the foaming power that gives a feeling of cleaning effect. For example, Japanese Patent Laid-Open No. 10-17453 proposes to control the foaming power using magnesium stearate, but the foaming power is insufficient.

  In the present invention, while conducting earnest research for the purpose of obtaining a denture cleaning composition capable of giving a foaming power higher than conventional and increasing the cleaning effect by using a foaming power adjusting component instead of magnesium stearate. The present inventors have found that the foaming power can be increased and controlled by using polyvinyl pyrrolidone and polyethylene glycol in combination at a certain ratio, and the present invention has been achieved.

  Polyvinyl pyrrolidone (hereinafter also referred to as PVP) and polyethylene glycol (hereinafter also referred to as PEG) have been conventionally used as denture cleaners that are not limited to foam-type cleaners. It is also known that it can be used as a stain remover such as a cigarette in an oral composition such as a toothpaste (see Patent Documents 2 and 3).

However, there has been no idea in the past that these are used to improve foaming power and control in foaming denture cleaning compositions.
Japanese Patent Laid-Open No. 10-17453 JP 2006-117600 A JP-T-2002-519314

  An object of this invention is to provide the denture cleaning composition which foaming power improves more and can control foaming power easily.

  The denture cleaning composition of the present invention is a solid denture cleaning composition that foams when dissolved in water by containing a carbonate compound and an acid, in order to solve the above problems Polyvinyl pyrrolidone (PVP) and polyethylene glycol (PEG) are contained in a weight ratio of PVP: PEG = 3: 7 to 7: 3.

  In the above, polyvinyl pyrrolidone preferably has a K value in the range of 17-100.

  The polyethylene glycol preferably has a weight average molecular weight in the range of 400 to 10,000.

  The blending amount of polyvinyl pyrrolidone and polyethylene glycol is preferably 5% by weight or more in the total amount of both.

  According to the present invention, it is possible to obtain a denture cleaning composition that has a foaming power that provides a sufficient feeling of cleaning effect and that can easily control the foaming power.

  The denture cleaning composition of the present invention is in a solid state and is used by dissolving in water before use, preferably immediately before use. Here, the solid form includes any of a lump form such as a tablet form, a granule form, and a powder form, but a tablet form is preferable in terms of easy handling during use. Therefore, the following description will be made assuming that the tablet is mainly used.

  Polyvinylpyrrolidone used in the present invention is a vinylpyrrolidone (N-vinyl-2-pyrrolidone linear polymer. Polyethylene glycol is a polymer obtained by adding ethylene oxide to water or ethylene glycol. Since PVP and PEG having various molecular weights are commercially available, those that meet the following conditions can be used in the composition of the present invention.

  In the denture cleaning composition of the present invention, the blending ratio of polyvinylpyrrolidone and polyethylene glycol is within the range of PVP: PEG = 7: 3 to 3: 7 by weight, preferably 4: 6 to 6: 4. Within the range of The foaming power can be controlled by changing the ratio of the two. When PVP exceeds 70%, the hydrophilicity is too large, the dissolution rate of the cleaning agent becomes too fast, and the foaming power becomes excessive. On the other hand, when the PVP is less than 30%, the features of PVP such as hydrophilicity and hydration are not exhibited, and foaming power is poor.

  The polyvinyl pyrrolidone used in the present invention preferably has a K value in the range of 17 to 100, and more preferably in the range of 25 to 50. The K value is a constant representing the degree of polymerization proposed by the German chemist Fikencher. If the K value is less than 17, the hydrophilicity becomes too high and it becomes difficult to adjust the water content of the cleaning agent, and if it exceeds 100, the cleaning agent becomes difficult to dissolve in water.

  The polyethylene glycol preferably has a weight average molecular weight (Mw) in the range of 400 to 10,000, more preferably in the range of 600 to 10,000, and still more preferably in the range of 2000 to 10,000. If the weight average molecular weight is less than 400, the detergent becomes brittle when it is tableted, and if it exceeds 10,000, the detergent becomes difficult to dissolve in water.

  The blending amount of the polyvinyl pyrrolidone and polyethylene glycol in the detergent composition is preferably 5% by weight or more in the total amount of both. If it is less than 5% by weight, it is difficult to generate sufficient bubbles.

  The denture cleaning composition of the present invention contains a carbon dioxide generating mixture composed of a carbonate compound and an acid as a foaming component. As the carbonate compound, alkali metal carbonates or hydrogen carbonates such as sodium, potassium, lithium or rubidium carbonates or hydrogen carbonates can be used. As the acid component, an organic acid such as citric acid, tartaric acid, succinic acid, fumaric acid, or a mixture thereof is used, but other acids including acidic sodium phosphate or potassium, or a mixture thereof may be used. Good.

  In addition to the above, the denture cleaning composition of the present invention can use the same active ingredients as those contained in conventional denture cleaning compositions, that is, surfactants, bleaching ingredients, enzymes, etc. As for the inactive components such as extenders, binders, colorants, dyes and fragrances, the same conventional ones can be blended as long as they do not contradict the purpose of the present invention. Specific examples of each of the above components are listed below, but the components usable in the present invention are not limited to these.

  Examples of surfactants include sodium lauryl sulfate, sodium lauroyl sarcosine, palm oil fatty acid amidopropyl betaine solution, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, alkyldiaminoethylglycine hydrochloride, polyoxy N-acyl amino acid salts such as ethylene hydrogenated castor oil, polyglycerin fatty acid ester, sodium alkylsulfosuccinate, sodium palm oil fatty acid monoglycerin sulfonate, sodium α-olefin sulfonate, N-acyl glutamate, maltitol fatty acid ester, sucrose Examples include fatty acid esters, fatty acid diethanolamides, polyoxyethylene sorbitan monostearate, and polyoxyethylene fatty acid esters.

  Examples of bleach components include oxygen bleaches such as sodium peroxide, sodium perborate and potassium hydrogen persulfate, chlorine bleaches such as sodium hypochlorite, sodium dichloroisocyanurate and sodium trichloroisocyanurate. Agents.

  Examples of enzyme components include alkaline protease, dextranase, mutanase, inulase, glucanase, lipase, papain and the like.

  Examples of lubricants include magnesium stearate and sucrose fatty acid esters.

  Examples of extenders include silica-based abrasives, sodium sulfate, magnesium sulfate, calcium sulfate, calcium phosphate, calcium pyrophosphate, magnesium phosphate, calcium phosphate, aluminum hydroxide, alumina, calcium carbonate, magnesium carbonate, zirconium silicate, etc. It is done.

  Examples of the colorant include pigments such as Blue No. 1 and pigments such as titanium oxide. Examples of fragrances include mint oil, 1-menthol and the like.

  In addition, as a binder, if it is a range which is not contrary to the objective of this invention, binder components other than the said polyvinyl pyrrolidone and polyethyleneglycol can also be used.

  EXAMPLES Hereinafter, although an Example demonstrates this invention, this invention is not limited to this.

[Examples and Comparative Examples]
The components shown in Table 1 below were blended in the proportions (parts by weight, total 100 parts by weight) shown in the table, mixed well, and tableted. Details of the polyvinylpyrrolidone and polyethylene glycol used are as follows. Moreover, as conditions for tableting molding, 2.8 g of the detergent composition was pressed at 700 kg / cm ² for 1 minute to obtain a tablet having a diameter of 2.5 cm.

PEG: Daiichi Kogyo Seiyaku Co., Ltd. PEG6000P
PVP K-30: Pitzkol K-30 manufactured by Daiichi Kogyo Seiyaku Co., Ltd.
PVP K-50: Pitzkor K-50 manufactured by Daiichi Kogyo Seiyaku Co., Ltd.
PVP K-90: Pitzkor K-90 manufactured by Daiichi Kogyo Seiyaku Co., Ltd.

Using the obtained tablet-like detergent, the foaming power was examined and evaluated. That is, for the foaming power, 150 ml of water at 30 ° C. was poured into a 200 ml graduated cylinder, the above tablets were put, and the maximum volume of the foam amount was measured. Based on this amount of foam, the following criteria were evaluated:
Less than 30ml ×
30ml to less than 40ml ○
40ml or more ◎

As can be seen from the results shown in the table, the cleaning agent of the example using polyvinyl pyrrolidone and polyethylene glycol in combination at a predetermined ratio is superior in foaming compared with the cleaning agent of the comparative example using either one. Have power.

Claims (4)

A solid denture cleaning composition that foams when dissolved in water by containing a carbonate compound and an acid,
A denture cleaning composition comprising polyvinylpyrrolidone (PVP) and polyethylene glycol (PEG) in a weight ratio of PVP: PEG = 3: 7 to 7: 3.   The denture cleaning composition according to claim 1, wherein the polyvinylpyrrolidone has a K value in the range of 17 to 100.   The denture cleaning composition according to claim 1 or 2, wherein the polyethylene glycol has a weight average molecular weight in the range of 400 to 10,000. The denture cleaning composition according to any one of claims 1 to 3, wherein the combined amount of polyvinylpyrrolidone and polyethylene glycol is 5% by weight or more in the total amount of both.