JPH08183718A - False teeth irrigator - Google Patents

Abstract

PURPOSE: To obtain a false teeth irrigator capable of preventing decoloring of a pigment in storing. CONSTITUTION: This false teeth irrigator contains an oxidizer such as potassium hydrogen persulfate and sodium perborate, a pigment, an anionic surfactant- containing granules or powder such as alkylbenzene sodium sulfonate having a granule diameter of 0.05-2mm, or magnesium oxide.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning agent for dentures, which is provided with a dye fading-inhibiting effect.

[0002]

2. Description of the Related Art Denture cleansing agents combine bleaching action of oxidizing agents, washing action of surfactants, substrate decomposing action of enzymes, washing action of alkalis, washing assisting action of chelating agents, stirring effect by foaming, etc. Detergency is given. Further, there are various dosage forms such as effervescent tablets, effervescent granules, effervescent powders, liquids and tooth pastes as the denture cleaning agent.

In order to prevent accidental ingestion and to provide a color timer function, a denture cleanser is generally mixed with a dye so that the cleansing solution is colored. The color timer function recognizes the cleaning time and cleaning finish by erasing the cleaning liquid. The mechanism is that the dye in the cleaning solution is oxidatively bleached by an oxidizing agent to erase the color, and the decoloring time is set by controlling the type of the dye, the initial concentration of the dye, the concentration of the oxidizing agent, the pH of the cleaning solution, etc. be able to. In addition, it is possible to change the color of the cleaning liquid in multiple stages by blending several kinds of dyes having different resistances to the oxidizing agent.
That is, by blending a blue dye having a low resistance and a red dye having a high resistance, it is possible to make the cleaning liquid blue first, then discolor red, and finally decolorize colorless.

However, when both the oxidizing agent and the pigment are mixed in the denture cleanser, there is a problem that the pigment is discolored during storage. Conventionally, there is no effective technology to prevent discoloration during storage, and it has nothing to do with selection of pigments with strong oxidation resistance, symptomatic treatment of selection of oxidizing agents with weak oxidizing power, and detergency which is the main function. , I had to take measures to allow fading to some extent.

Incidentally, it has been conventionally known to mix an anionic surfactant in a denture cleanser, for example, JP-A-3-215413, JP-A-2-22217, and JP-A-1-238517. Have been reported to. However, all of these are blended with an anionic surfactant to improve detergency, and are not blended with anionic surfactant-containing granules having a specific particle size for the purpose of preventing discoloration of the dye.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to prevent fading of a dye during storage in a denture cleanser containing an oxidizing agent.

[0007]

Means for Solving the Problems The denture cleanser of the present invention comprises:
It is characterized by containing an oxidizing agent, a pigment and magnesium oxide. Further, 0.05 to 10% by weight of an anionic surfactant-containing granule or powder having a particle diameter of 0.05 to 2 mm
By blending them, discoloration can be further prevented.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION As magnesium oxide, various magnesium oxides can be blended, for example, Kyowamag 100 and Kyowamag 15 manufactured by Kyowa Chemical Industry Co., Ltd.
0, Kyowamu 20, Kyowamu 30 and the like can be used, and Kyowamu 100 is particularly effective.

Magnesium oxide is preferably added to the denture cleanser of the present invention in an amount of 0.05 to 8% by weight, preferably 0.1 to 4% by weight, and more preferably 0.2 to 3%.
It is blended by weight%. If the blending amount is less than 0.05% by weight, fading of the dye during storage cannot be sufficiently prevented, while if it exceeds 8% by weight, it may be difficult to dissolve.

Further, by mixing the anionic surfactant-containing granules or powder with magnesium oxide,
Further, fading can be suppressed. The anionic surfactant-containing granule or powder (hereinafter, referred to as a granule) has a particle size of 0.05 to 2 mm, preferably 0.1 to 1.
Granules of 5 mm, more preferably 0.2 to 1 mm, are blended. If this particle size is too small, the anti-fading effect will not be exhibited, while if it is too large, the anti-fading effect will decrease due to a decrease in the number of granules.

The anionic surfactant-containing granules are added to the denture cleanser of the present invention in an amount of 0.05 to 10% by weight, preferably 0.1 to 8% by weight, and more preferably 0.2 to 5% by weight. It is desirable to do. If this blending amount is too small, a sufficient discoloration preventing effect cannot be obtained, while if it is too large, it may lead to solidification.

As the anionic surfactant, alkylbenzene sulfonate, α-olefin sulfonate, alkyl sulfate, alkyl sulfoacetate, etc. are used.
In particular, alkylbenzene sulfonate is preferable since it has a large effect of preventing discoloration.

As the anionic surfactant, those having 10 to 22 carbon atoms in the alkyl group are preferable, and those having 12 to 16 carbon atoms are more preferable. As the salt, water-soluble salts such as sodium salt and potassium salt are used, and sodium salt is preferable. The anionic surfactant is contained in the anionic surfactant-containing granule in an amount of 5% by weight or more, preferably 10% by weight.
It is desirable to mix the above components, whereby a sufficient effect of preventing discoloration is exhibited.

Granules containing anionic surfactant are 100%
It may be constituted as an anionic surfactant, and a water-soluble salt such as sodium sulfate, sodium carbonate or sodium hydrogen carbonate may be added. The anionic surfactant does not have to be a pure product.

As the oxidizing agent, oxygen bleaching agents such as sodium perborate, sodium peroxysulfate and sodium percarbonate which act as a bleaching component, chlorine such as sodium hypochlorite, sodium dichloroisocyanurate and sodium trichloroisocyanurate. A system bleach can be used. The blending amount of the bleaching component is suitably 10 to 80% by weight, preferably 20 to 70% by weight. If this amount is less than 10% by weight, satisfactory bleaching power cannot be obtained,
On the other hand, when it exceeds 80% by weight, the quality as a total balance is deteriorated, such as a decrease in foaming power. Further, TAED (N, N, N ', N'-tetraacetylethylenediamine) or the like can be blended as a bleach activator. As the dye, blue No. 1, blue No. 2, green No. 3, laccaic acid, red No. 102, red No. 104, red No. 105
No. 106, red No. 106, yellow No. 4, yellow No. 5 and the like are mixed, and blue No. 1 and green No. 3 are particularly preferably used. It is preferable to add 0.001 to 1.0% by weight of the coloring agent in the denture cleanser.

In the denture cleanser of the present invention, in addition to the oxidizing agent, magnesium oxide, pigment, and anionic surfactant-containing granules, a cleaning component, a foaming component and the like can be blended.
As the foaming component, carbonates and bicarbonates such as sodium hydrogen carbonate, sodium carbonate and potassium hydrogen carbonate, and organic acids such as citric acid, succinic acid and sulfamic acid, and inorganic acids are combined and blended.

As the chelating agent, condensed phosphates such as sodium tripolyphosphate and sodium pyrophosphate, sodium ethylenediaminetetraacetate (EDTA) and the like are blended. Examples of the enzyme include protease, dextranase, mutase, lipase, glucanase and the like, and various flavors and the like can also be used. The dosage form of the denture cleanser of the present invention is preferably an effervescent tablet, granule, powder, or other solid preparation.

[0018]

According to the present invention, the discoloration of the dye during storage can be prevented by adding magnesium oxide to the denture cleanser containing the oxidizing agent and the dye.
In addition, discoloration can be more effectively prevented by adding a specific amount of anionic surfactant-containing granules having a specific particle size. Since this anionic surfactant also functions as a cleaning component for dentures, it is not necessary to mix other components only for the purpose of enhancing the effect of preventing discoloration, and the cost does not increase.

[0019]

【Example】

(1) Method for producing granules containing anionic surfactant A predetermined amount of surfactant and anhydrous sodium sulfate were mixed and granulated by tumbling granulation. That is, the mixed powder is put into a rotating container, and spraying of water and heated air is alternately repeated, and when the particle size grows to an appropriate particle size, the granulation is stopped and the particle size is passed through a sieve to a particle size of 2 to 2. 0.0
5 mm granules were prepared.

(2) Discoloration test method 100 g of a detergent of each composition is put in a 250 ml plastic bottle. Make a hole with a diameter of 1mm in the lid of the plastic bottle, 40 ℃-
Place in a 75% high temperature humidifier for a period of time. After a lapse of a predetermined period of time, it is taken out, dissolved in water and evaluated according to the following evaluation criteria from the color density of the cleaning liquid. ⊚: 40 ° C.-75% RH, no discoloration after 2 months storage ○: 40 ° C.-75% RH, no discoloration after 1 month storage Δ: 40 ° C.-75% RH, slightly discoloration after 1 month storage ×: 40 ° C. -75% RH, fading after 1 month storage

Examples 1 to 16 Powdery or granular denture cleaners having the compositions shown in Tables 2 to 5 below were prepared and evaluated for discoloration. Unless otherwise specified, the blending amounts and the activator ratios in the following Comparative Examples and Examples are% by weight. The common compositions of Comparative Examples 1-5 and Examples 1-16 are shown in Table 1 below.

[0022]

[Table 1] Table 1: Common composition Oxone 20% by weight Perbon 50% by weight Sodium tolupolyphosphate 10% by weight Protease 1% by weight Blue No. 1 0.01% by weight Granule ash balance * 1) Mitsubishi Gas Chemical Co., Ltd., Mono Peroxide preparation containing potassium hydrogen persulfate as the main ingredient (43% content), potassium sulfate 32%, potassium hydrogen sulfate 23%, and magnesium carbonate 2% * 2) Sodium perborate manufactured by Mitsubishi Gas Chemical Co., Inc. The abbreviations in the table have the following meanings. AOS: sodium α-olefin sulfonate having 14 to 18 carbon atoms LAS: sodium dodecylbenzenesulfonate AS: sodium lauryl sulfate ASA: sodium lauryl sulfoacetate

[0023]

[Table 2] Table 2: Comparative Example 1 2 3 4 5 Magnesium oxide − − − − − LAS granule content − 0.2 0.2 − − AS granule content − − − 0.2 − ASA granule content − − − − 0.2 granule Ratio of active agent in 100 100 100 100 100 Discoloration evaluation result × × × × ×

[0024]

[Table 3] Table 3: Composition, properties and evaluation results Example 1 2 3 4 5 Magnesium oxide 0.05 0.1 0.05 0.1 3 LAS Granule content − − 0.05 0.2 2 Ratio of active agent in granule 100 100 100 100 100 Fading Evaluation results △ ○ ◎ ◎ ◎

[0025]

[Table 4] Table 4: Composition, properties and evaluation results Example 6 7 8 9 10 11 Magnesium oxide compounding amount 0.05 0.05 0.05 3 0.1 7 AOS granule compounding amount − 0.05 − − − 3 AS granule compounding amount 0.05 − − − 8 − ASA Granule content − − 0.05 2 − − Ratio of active agent in granule 100 100 100 100 100 100 Discoloration evaluation result ○ ○ ○ ○ ○ ○

[0026]

[Table 5] Table 5: Example 12 13 14 15 16 Magnesium oxide content 0.05 0.1 0.05 0.05 5 LAS granule content 0.05 0.1 0.05 0.05 5 Ratio of active agent in granule 30 30 10 5 60 Discoloration evaluation result ◎ ◎ ○ △ ◎

Examples 17 to 24 Granular or powder denture cleansing agents having the compositions shown in Table 6 below were prepared, and their fading properties were evaluated.

[0028]

[Table 6] Table 6: Composition and evaluation results Example 17 18 19 20 21 22 23 24 Magnesium oxide 1.5 0.05 1 0.1 0.05 5 0.05 7 LAS granules * ¹ 2 − − 10 5 0.1 7 2 Potassium monopersulfate 15 20 20 20 20 − − 15 Sodium perborate 50 30 − 10 40 − 40 − Sodium percarbonate − 20 40 40 − 50 − 40 Sodium tripolyphosphate 10 − − − 10 − 10 − Sodium pyrophosphate Phosphate − 5 − 10 − − 10.5.998 Dihydrogen pyrophosphate 19.49 − 17 − − − 19.74 10 Dinatrim Monosodium dihydrogen phosphate − 20 − − − 20 − − Protease 1 − − − 3 0.1 0.1 4 Dextrase − − 1 − − − 0.1 − β-1, 3-Glycanase − − − 1 − − − 4 Sodium carbonate − 4.9 − 8.89 − 20 − − Sodium bicarbonate − − 18.9 − 10.948 − 10 − Sodium sulfate − − − − 11 4.2 − 7 Perfume 1 − 2 − − 0.5 3 5 Blue No. 1 0.01 − − 0.1 − − − − Blue No. - - 0.01 - 0.002 - - - Green No. 3 - - - - - - 0.01 0.002 laccaic acid - 0.05 - - - 0.1 - - discoloration evaluation ◎ △ ○ ◎ ◎ ◎ ◎ ◎ * 1) LAS granules 100% dodecyl It consists of sodium benzenesulfonate.

Claims (3)

[Claims] 1. A denture cleanser containing an oxidant, a pigment and magnesium oxide. 2. The denture cleaner according to claim 1, further comprising 0.05 to 10% by weight of an anionic surfactant-containing granule or powder having a particle size of 0.05 to 2 mm. 3. The denture cleanser according to claim 2, wherein the anionic surfactant is an alkylbenzene sulfonate.