Dentifrice composition

A technology of composition and toothpaste, which is applied in the fields of dentistry, oral care, and cosmetic preparations, etc. It can solve the problems of brushing feeling and poor dispersion, and achieve the effect of good use feeling

Active Publication Date: 2007-06-27
LION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the toothpaste composition compounded with ground calcium carbonate as an abrasive is poor in the real brushing feeling and dispersibility as the feeling of use, and the improvement of the feeling of use is being sought

Method used

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Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0088] A toothpaste containing the ingredients shown in Table 1 was prepared, and the effect of the compounded granules was evaluated by the following methods for grinding force and use feeling (toothpaste dispersibility, real brushing feeling, foreign body feeling). The results are shown in the table.

[0089] Grinding force determination method (RDA method):

[0090] In this experiment, the grinding force is measured by the RDA method (numbers 0-4 in the ones digit are rounded off to 0, and above 5 is set to 5).

[0091] The RDA (Radioactive Dentin Abrasion) method is a measurement method for evaluating abrasiveness by irradiating neutrons to human extracted teeth in advance and measuring the radiation energy of a small amount of abrasive components generated during grinding using an abrasiveness tester. ADA (American Dental Association) sets 100 as the dentin grinding value (RDA value) when calcium pyrophosphate is used as a standard substance. In addition, ADA sets the u...

experiment example 2

[0157] Then, using the toothpaste composition of Comparative Example 4, which has an appropriate grinding force, good real brushing feeling, and no foreign body feeling, the water-soluble polymer substance is used to improve the feeling of use (especially the toothpaste dispersibility).

[0158] Under appropriate conditions, the water-soluble polymer substances shown in Table 2 were uniformly dissolved in 3% propylene glycol aqueous solution to prepare a 1% solution, and the state was visually evaluated. A water-soluble polymer substance in a viscous solution state is classified as a viscous polymer substance, and a gelled water-soluble polymer substance is classified as a gelling polymer substance. As groupings, it can be seen from the results of Experimental Example 3 described later that viscous polymer substances and xanthan gum belong to group (a), and gelling polymer substances other than xanthan gum belong to group (b).

[0159] In addition, the water-soluble high molec...

experiment example 3

[0169] The preparation and compounding of the toothpaste with the ingredients shown in Tables 3 and 4, the effect of compounding alone and in combination with water-soluble polymer substances is carried out by grinding force and feeling of use (toothpaste dispersibility, real brushing feeling, foreign body feeling) evaluate. The results are shown in Table 3 and 4. In addition, the evaluation method was performed based on Experimental example 1.

[0170] In addition, the mass ratio of (b) group with respect to (a) group [(b) water-soluble polymer compounding quantity (%) / (a) water-soluble polymer compounding quantity (%) ] values ​​are also shown in Tables 3 and 4 side by side.

[0171] [table 3]

[0172]

Element(%)

comparative example

12

13

14

15

16

17

18

19

20

21

22

23

abrasive

Ground calcium carbonate

(average particle size 12μm)

40

...

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Abstract

A dentifrice composition which comprises (A) heavy calcium carbonate having a mean particle diameter of 5 to 15 m, (B) water-insoluble inorganic granules having a collapse strength of 10 to 200g/granule, a mean particle diameter of 50 to 150 m, and a difference of 100 m or below between 90% particle diameter and mean particle diameter, and (C) a water-soluble polymeric material comprising at least one member selected from Group (a) and at least one member selected from Group (b) at a (b)/(a) mass ratio of 0.25 to 3, Group (a): sodium alginate, sodium carboxymethylcellulose, methylcellulose, hydroxyethylcellulose, Xanthomonas campestris, lambda-carrageenan, and straight-chain sodium polyacrylate, and Group (b): gellan gum, agar, kappa-carrageenan, iota-carrageenan, gelatin, pectin, and crosslinked sodium polyacrylate, and which has a total content of (a) and (b) of 0.5 to 1.5% by mass based on the whole of the composition.

Description

technical field [0001] The present invention relates to a toothpaste composition having an appropriate grinding force and a good feeling of use due to the synergistic effect of the real brushing feeling of the particles and the excellent toothpaste dispersibility. Background technique [0002] The abrasiveness of a toothpaste composition is considered to be related to the hardness, particle size and compounding amount of the abrasive used. That is, for relatively soft abrasives such as calcium hydrogen phosphate (around 2 to 3 on the Mohs scale), a large amount of abrasives with large particle diameters can be compounded in the toothpaste composition. However, relatively hard abrasives such as silicic anhydride (around 4 to 6 on the Mohs scale) can only be reduced in particle size and compounded in a small amount in the toothpaste composition. [0003] On the other hand, the hardness, particle diameter, and compounding amount of abrasives also have a great influence on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/00A61Q11/00
CPCA61K8/73A61K8/0241A61K8/19A61K2800/412A61Q11/00
Inventor 平塚进小松高明山本高司
Owner LION CORP
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