KR100311096B1 - Composition of semi-paste type toothpaste stabilized with sodium magnesium silicate - Google Patents

Abstract

The present invention is a conventional toothpaste composition consisting of an abrasive, a wetting agent, a foaming agent, a viscosity control agent, etc., a constant content of sodium magnesium silicate, which is a silica compound synthesized in a conventional silica for thickening as a thickening agent (Thickening Agent). Regarding the composition of semi-paste type toothpaste stabilized with sodium magnesium silicate, which is mixed and contained in a ratio and stably suspended / dispersed abrasive using polysaccharide gums together. will be.

In the toothpaste composition, a viscosity regulator of toothpaste is a viscosity stabilizer and a suspension / dispersant of an abrasive in an aqueous liquid medium containing a wetting agent in combination with a conventional viscosity-adjusting silica and sodium magnesium silicate in a fixed ratio. Polysaccharide-based gums are used to disperse / suspend particulate precipitated calcium carbonate, abrasive silica or mixtures thereof, and then mix with the remaining conventional toothpaste components.

The semi-pasta toothpaste according to the present invention as described above can lower the raw material content of the viscosity modifier while maintaining stability during long-term storage or distribution of the product, and has a feeling of use as a toothpaste and required flow characteristics, and thus, In the case of filling and using the toothpaste contents of the present invention in a new type of toothpaste container formed of a container and a dispenser cap of the container, the convenience of use and portability is improved than the conventional toothpaste.

Description

Composition of semi-paste type toothpaste stabilized with sodium magnesium silicate}

The present invention is a conventional toothpaste composition consisting of an abrasive, a wetting agent, a foaming agent, a viscosity control agent, etc., a constant content of sodium magnesium silicate, which is a silica compound synthesized in a conventional silica for thickening as a thickening agent (Thickening Agent). Mixed and contained in a ratio, and stably suspended / dispersed abrasive silica, precipitated calcium carbonate or both using polysaccharide gums in the liquid medium of the present invention for long-term storage or distribution of the product. This new toothpaste container is a combination of a container or dispenser cap made of ceramic or plastic material with a feeling of use as a toothpaste and required flow characteristics. When used to fill the toothpaste content of the invention within The present invention relates to a composition of semi-paste type toothpaste stabilized with sodium magnesium silicate, which improves portability compared to a conventional toothpaste.

As a viscosity stabilizer of a conventional toothpaste, conventional polysaccharide-based gums and viscosity-adjusting silicas, which are used as suspending / dispersing agents, are mainly used. Toothpastes containing these raw materials are disclosed in Korean Patent Publication No. 96-11568 (Peter Dow). S). The formulations exemplified in this document contain viscosity-adjusting silicas and polysaccharide-based gums as viscosity modifiers, where conventional viscosity-adjusting silicas are representative examples of long-Frans Inc. Tixosil 43K (specific surface area). : 215 m 2 / g, average particle size: 6 to 7 µm, pore area: 1.34 l / kg), and polysaccharide gums include conventional Carageenan gum, Xanthan Gum, and guar gum. (Guar Gum), Acacia Gum, Sodium Alginate, cellulose derivatives such as CMC, and the like. Toothpaste composition composed of these is a liquid toothpaste, while the flow characteristics are good, on the other hand, because the stability of the product is likely to be a relatively problematic problem can not be considered in view of the nature of the toothpaste. These ingredients also required a high raw material content on the dentifrice composition. In addition, in GB 2,240,473 (Lion), there is an example of using a binder such as a mixture of Xanthan Gum and Sodium polyacrylate as a viscosity modifier, but liquid toothpaste and semi-pasta agent. In view of shear thinning or thixotropic effect, the viscosity of the toothpaste decreases in terms of shear thinning or thixotropic effect. Not only was it followed, it could be used as a toothpaste of the dispenser container type, there was a problem that can not have the use and portability of the toothpaste.

The present invention has been made in view of the above-described conventional problems, in the toothpaste composition, even if stored for a long period of time without a change in viscosity (Viscosity) it is possible to lower the raw material content of the viscosity control agent while the toothpaste is stable, Semi-pasta agent that improves the convenience of use and portability when compared to conventional toothpaste when the toothpaste contents of the present invention are filled and used in toothpaste containers of the dispensing container type of plastic or plastic, which has a feeling of use as a toothpaste and required flow characteristics. It is intended to provide a composition of toothpaste, which will be described below in detail with examples of the present invention.

In the dentifrice composition, a liquid phase in which a humectant is contained is used by combining a conventional viscosity-adjusting silica with sodium magnesium silicate (hereinafter abbreviated as SMS) as a viscosity adjusting agent of the toothpaste at a constant ratio. A polysaccharide-based gum, a viscosity modifier and suspending / dispersing agent, is used to disperse / suspend particulate precipitated calcium carbonate, abrasive silica or a mixture thereof, and then mix with the remaining conventional toothpaste components. Hereinafter, the toothpaste composition of the present invention will be described in detail.

First, in the present invention, the properties of sodium magnesium silicate used as a viscosity modifier in more detail, sodium magnesium silicate is a synthetic layered silica compound, which is not soluble in water, but hydrates to form a transparent gel . In addition, sodium magnesium silicate is only about 1/10 the particle size of natural pure clays, Bentonite and Hectorite, and on a similar basis, there are much more bonds in one gel formation ( Forming a gel of a stronger structure. In addition, sodium magnesium silicate is a pure material that completely excludes crystalline silica such as quartz and feldspar, which are present in natural clays, and has high purity and does not adversely affect stability in a product. In addition, it is easily dispersed in a system consisting of a liquid polyhydric alcohol wetting agent to give a high thixopropy effect, so that the toothpaste content requires a rheology (trajectory that shows the change in viscosity with the change of force and time). Sodium magnesium silicate can be used in conventional high concentration abrasive pasta toothpaste, transparent gel toothpaste, and even liquid toothpaste, because it has the property of maintaining stability and required fluidity during storage or storage for time. In this case, sodium magnesium silicate may be used by replacing all or part of the inorganic viscosity adjusting silica or alumina hydrate generally used as a viscosity control agent in the toothpaste composition. In the toothpaste with high abrasive content, sodium magnesium silicate is used in combination with Sodium Carboxymethyl Cellulose (hereafter abbreviated as CMC). Toothpaste will make you lower. For example, sodium magnesium silicate can be mixed with sodium carboxymethyl cellulose in low amounts of up to 1% to produce stable pasta or semi-pasta toothpaste. Table 1 below compares the required contents of soda magnesium silicate and other inorganic viscosity modifiers in the transparent gel type toothpaste composition having the same viscosity through research and experiment. Here, the abrasive silica was based on the content of 12%. <Table 1>-Composition and content of viscosity modifiers having the same viscosity

In the present invention, the viscosity modifier contains a conventional viscosity-adjusting silica and a synthetic silica compound sodium magnesium silicate in a mixed form, and a polysaccharide gum, a suspension / dispersant, is also used for its synergistic effect. In the case of sodium magnesium silicate, which is a synthetic silica compound, Laponite D's laponite D (specific surface area: 370 m 2 / g, average particle size: 250 μm) and the like. In the present invention, the sodium magnesium silicate and the silica gel for viscosity control are mixed at a weight ratio of 0.99: 0.01 to 5: 5, and the total content of these in the toothpaste composition is 0.15 to 5.0% by weight.

In the present invention, the agent used for stably suspending / dispersing particulate abrasive in a liquid medium in an aqueous phase is a polysaccharide gum. Mixtures with such gums can also be used. The amount of polysaccharide gum contained at this time is usually in the range of 0.1 to 1.5% by weight. However, in order to obtain the necessary flow characteristics of the semi-pasta toothpaste, the relative amount of the mixed thickener and polysaccharide gum of the sodium magnesium silicate and the incremental silica described above is 12: 1 to 3: 5: It should be chosen to be 0.5 to 10.0% by weight in the dentifrice composition.

In addition, the above-described abrasive abrasive silica and precipitated calcium carbonate, which may be contained in the toothpaste of the present invention, have a tooth polishing index (measured by BSDAV method 5136: 81 using a 10% by weight aqueous dispersion slurry). Should be 20 to 80. In addition, in the case of the two formulations described above, the average particle size should be 1 to 12 μm, respectively, and the specific surface area of these abrasives should be 50 to 900 m 2 / g when the BET method based on the nitrogen absorption method is used. The pore volume should be 0.2 to 0.6 l / kg.

In addition, a typical example of a fine abrasive silica raw material suitable for the present invention is Tixosil 73K (specific surface area 60 m 2 / g, average particle size 8 µm) manufactured by Long-Frans. A representative example of precipitated calcium carbonate raw material is Nitto Hunka Kogyo Co., Ltd. (average particle size 2.22㎛, density 1.21g / cc).

The toothpaste of the present invention may also contain, as other components, anionic, amphoteric, nonionic surfactants such as the foaming agent alkyl sulfate, alkyl benzene sulfonate, sulfobetaine, fatty acid sorbitan esters, and the like. In addition, various active (pharmacological) ingredients, other flavoring agents, sweetening agents, and preservatives that may be contained in the conventional toothpaste may be included in the toothpaste composition of the present invention. Briefly, in the manufacturing method, the addition of sodium magnesium silicate is the first step in the toothpaste manufacturing process, and the mixture should be mixed in all free water at an arbitrary temperature and mixed vigorously for about 15 minutes during suspension / dispersion. Warming up to about 50 degrees Celsius can also shorten the time for this process. The result is a transparent, shear-diluting gel that forms a final semi-pasta toothpaste by adding and mixing abrasives and other ingredients in a certain order. The prescription example of the toothpaste composition which used the dicalcium phosphate prepared by this invention as an abrasive is as follows.

Here, Formulation Example A is a case where a mixture of S.M.S. and C.M.C.

Formula B is a viscosity modifier using a mixture of silica and C.M.C.

Formulation C is a viscosity modifier C.M.C. When used alone

The toothpaste composition of the present invention configured as described above uses a mixture of sodium magnesium silicate and carboxymethyl cellulose sodium as a viscosity modifier, and their rheology with conventional toothpaste using another viscosity modifier is Car-med rheometer (Carr). -med CS100 Rheometer) was compared and the results were obtained as shown in Table 2 below. In Table 2, the toothpaste containing sodium magnesium silicate is more viscous than the other toothpaste, and the viscosity is higher and the higher viscosity is applied to the weaker shear force. Due to such physical properties, it remains stable when stored for a long time and maintains its shape as it is squeezed out on the toothbrush, as well as when the contents are discharged and filled from the toothpaste tube (container).

In addition, the required content of sodium magnesium silicate and other organic viscosity modifiers to obtain shear dilution of similar size was tested by varying the velocity of the impeller and viscous with a Brookfield RVT T-Bar-E. <Table 3>-The composition of the viscosity modifier to obtain pseudo shear dilution force As shown in Table 3, it can be seen that the content of sodium magnesium silicate required to obtain a similar dilution shear strength and viscosity increase effect is much less than other organic viscosity modifiers. As can be seen from the above, the semi-pasta toothpaste of the present invention has sufficient 'shape holding force' and does not flow down when buried on the toothbrush, while the cohesive viscosity is low enough to maintain stability and is still manufactured and filled, It has a strong shearing dilution to facilitate ejection from packaging and suitable containers. In addition, the composition of the present invention has a viscosity of at least 3,000 cps at 25 degrees Celsius so as to maintain the shape of the toothpaste on a standard toothbrush for at least 5 minutes, viscosity to facilitate easy dispensing from containers of manufacture, filling and dispenser type May be formulated to belong to a toothpaste of 6,000 cps or less under the same conditions. On the other hand, the yield value (Yield Value) indicating that the toothpaste contents are easily discharged out of the container is in the range of 50 Pa to 100 Pa, when the contents of the toothpaste is stopped, the liquid quickly changes to a liquid state by applying pasta shape or slight force (movement). In conclusion, the use of the semi-pasta toothpaste composition according to the present invention as described above provides a stable semi-pasta toothpaste in terms of usability with good stability and low raw material content as described above. In addition, the toothpaste of the present invention can be used even when the toothpaste container of the present invention is filled and used in a new type of toothpaste container in which a container or a dispenser cap is formed with the necessary flow characteristics. Convenience is improved. The effect of the toothpaste according to the present invention containing sodium magnesium silicate was revealed through various measurement methods and a long period of research.

1) physical / chemical properties; Manufacturing process and stability aspects

2) structural / functional aspects; Usability, raw material content aspect

3) rheological aspect; Usability, stability, ease of use

4) excellent usability and raw material content reduction effect; Viscosity control systems in which sodium magnesium silicate and carboxymethyl cellulose sodium are mixed at a constant ratio show higher viscosity than toothpastes made by using other inorganic or organic viscosity modifiers alone or in combination. Therefore, the toothpaste can be manufactured in a lesser amount in the toothpaste composition, thereby reducing the effect and the toothpaste made as described above (上述) has excellent usability (Performance).

Claims (2)

In a toothpaste composition composed of an abrasive, a wetting agent, a foaming agent, a viscosity adjusting agent, and the like, a viscosity adjusting silica and sodium magnesium silicate, which is a synthetic silica compound, are mixed / contained in a weight ratio of 0.01: 0.99 to 5: 5, and these Total toothpaste composition in the toothpaste composition of 0.15 to 5.0% by weight, stabilized semi-pasta toothpaste, sodium magnesium silicate, characterized in that the suspension is suspended / dispersed in a liquid medium using a polysaccharide gum together. Composition. The method of claim 1, wherein the relative content of the mixed viscosity modifier and polysaccharide gum of the sodium magnesium silicate and the silica for viscosity control is a weight ratio of 12: 1 to 3: 5 so that the total content of these viscosity modifiers in the dentifrice composition Sodium magnesium silicate stabilized semi-pasta toothpaste composition, characterized in that it does not exceed 0.5 to 10.0% by weight.