JP2571160B2 - dentifrice - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothpaste using a novel abrasive.

[0002]

2. Description of the Related Art Toothpaste is composed of abrasives, foaming agents, wetting agents, binders and the like, except for liquid ones. Of these, calcium carbonate, calcium hydrogen phosphate, water Aluminum oxide or the like is used.
It is desirable that the cleaning of the teeth with an abrasive should not clean the tooth surface by abrading the teeth, but rather clean and remove only deposits on the tooth surface. . However, since the polishing / cleaning action of the abrasive is generally correlated with the hardness of the abrasive, it satisfies the incompatible requirement that the abrasive has an appropriate hardness that does not damage teeth and has an excellent abrasive action. No abrasive is known.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a conventional method for removing teeth deposits and cleaning teeth while having a lower hardness than abrasives used in conventional tooth brushing. It is intended to provide toothpaste with a new abrasive which is superior to the above.

[0004]

The dentifrice of the present invention which has successfully achieved the above object contains crab shell deproteinized powder as an abrasive. It has been confirmed that the crab shell is composed of a spongy porous skeleton made of calcium carbonate and organic substances such as chitin, chitosan, and proteins existing in gaps and surfaces thereof. The crab shell deproteinized powder used in the present invention is obtained by crushing the crab shell and then treating it with an alkali such as caustic soda to remove proteins and other alkali-soluble contaminants, washing with water and drying. . Alkali-soluble components such as proteins are removed by alkali treatment, but chitin, chitosan and the like remain in the calcium carbonate skeleton. After this treatment, if necessary, a particle which has been subjected to particle size adjustment by re-pulverization or deodorization by treatment with a hydrophilic organic solvent such as alcohol may be used.

[0005] Crab shell deproteinized powder having a different calcium carbonate content can be obtained depending on the type of crab shell used as a raw material and the degree of the alkali treatment, but those containing a calcium carbonate content as an abrasive are not suitable for toothpaste. Should be about 10% or more, and preferably about 30 to 65%. If the deproteinization is incomplete and the calcium carbonate content is too low, the polishing action is weak, so that even if a large amount is added during tooth brushing, good results cannot be obtained. Similar deproteinized powder can be obtained from crustaceans other than crabs, such as shrimp shells, but those from crab shells are the best abrasives for toothpaste.

The crab shell is made of calcium carbonate, chitin and chitosa
And mainly in the crab shell
Is considered to have maintained the coexistence state of
Coconut shell deproteinized powder is an excellent abrasive for use in toothpaste.
It has the most advantageous properties. That is, the hardness is shown in Table 1.
As shown, abrasives commonly used in conventional toothpaste
Teeth with a hardness of 6 to 8 (enamel part)
There is almost no risk of damaging the minute), but the cleaning action is extremely
It is very powerful (see Examples below). Table 1Abrasive Mohs hardness  Crab shell deproteinized powder * 2.5 Calcium carbonate 3 Calcium phosphate (dihydrate) 3 Calcium phosphate (anhydrous salt) 4.5 Aluminum hydroxide 3 * Calcium carbonate content 60% Polishing and cleaning of crab shell deproteinized powder For normal abrasive
More than just a mixture of calcium carbonate and chitosan
Has also been found to be powerful, including
Properties of calcium carbonate peculiar to protein powder and said carbonate
The coexistence state of Lucium with chitin and chitosan is related
It seems to be.

The toothpaste of the present invention may be anything other than liquid toothpaste that does not use an abrasive, that is, any of toothpaste, semi-paste (moistened) toothpaste, powder toothpaste, and the like. An appropriate amount of the crab shell deproteinized powder to be contained in the toothpaste is 5 to 60%, preferably 15 to 50% for toothpaste, and 5 to 90%, preferably 15 to 90% for semi-toothpaste.
%, 5 to 95% for powder toothpaste, preferably 15 to 9%
5%. If it is less than 5%, almost no compounding effect can be expected. In the case of toothpaste, if the compounding ratio exceeds 60%, the fluidity is reduced and it is difficult to come out of the tube.

[0008] The constituents of the toothpaste of the present invention are not limited except that crab shell deproteinized powder is contained as an abrasive. For example, sodium lauryl sulfate, sucrose fatty acid ester, sodium lauroyl sarcosine as a foaming agent, sorbitol, glycerin, propylene glycol, maltitol as a wetting agent, sodium carboxymethylcellulose, carrageenan, methylcellulose as a binder and a flavoring agent as a flavoring agent Spearmint oil, peppermint oil, saccharin as a sweetener, hinokitiol, an alkyldiaminoethyl glycine hydrochloride solution, glycyrrhizic acid as a medicinal component, sodium benzoate, ethyl paraoxybenzoate, etc. as a preservative can be used. Although not necessary in most cases, an abrasive such as calcium carbonate, calcium phosphate, and aluminum hydroxide may be additionally contained.

[0009]

The present invention will be described below with reference to examples. Example 1 Three types of toothpastes as shown in Table 2 were manufactured, and a group brushed with the toothpaste and a group brushed only with water were examined for feeling in use in a 2-month use test (A and A). B is a control, 20 persons in each group). Table 3 shows the results. The score is based on the state before the start of the test. Table 2 Toothpaste Composition (wt%) A B C crab shells deproteinized powder ※ 40 calcium carbonate 40 20 Chitin 20 Sorbitol 22 22 22 CMC 1.1 1.1 1.1 Sodium lauryl sulfate 1.3 1.3 1.3 Saccharin 0.1 0.1 0.1 Fragrance 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Ethyl paraoxybenzoate 0.05 0.05 0.05 Water Remaining Remaining Remaining (* Used for the hardness test in Table 1 above)

Table 3 Sensory evaluationA B C water  Tooth stain -0.1 -0.3 1.1 -1.0 Purification in mouth 0.1 0.3 1.3 -0.5 << Score >> 2: Upturn 1: Slight upturn 0: No change -1 : Slightly deteriorated-2: Deteriorated Note that this is a comment from the group using the product of the present invention / C.
Is a soft feeling of use; the next morning the mouth is refreshing
Yes, there is no feeling that the mouth is sticky the next morning
I saw a lot.

As a result, even if the crab shell deproteinizing powder has a low hardness, if the powder is blended with the crab shell detoxifying powder, a result superior to toothpastes A and B using calcium carbonate can be obtained against tooth stains. It was confirmed that the protein powder had a different effect on the purification of the mouth from that of a mixture of simple calcium carbonate or a mixture thereof with chitin.

Example 2 For toothpaste having the composition shown in Table 4, 3 groups of 15 people
A one-month use test was conducted by the group. The results are shown in Table 5 (A and B are control examples; evaluation criteria)
Is the same as in Table 3). Table 4 Toothpaste composition (% by weight)A B C  Crab shell deproteinized powder * 80 Calcium carbonate 80 Hydrogen phosphate Ca (dihydrate) 80 Glycerin 88 88 Sodium lauryl sulfate 1.5 1.5 1.5 1.5 Saccharin 0.1 0.1 0.1 Fragrance 111 Water Remaining Remaining Remaining (* Calcium carbonate content: 40% by weight) Table 5 Sensory evaluationA B C  Tooth stains 0.3 0.0 1.2 Purification in mouth 0.1-0.2 1.4

[0013]

As described above, in the toothpaste of the present invention using crab shell deproteinized powder as an abrasive, the abrasive has a low hardness and does not hurt the teeth, and also removes tooth surface deposits to clean the teeth. It has many features, such as better action than conventional ones and good feeling of use.

Claims (1)

(57) [Claims] 1. A toothpaste comprising crab shell deproteinized powder as an abrasive.