KR102499289B1 - Manufacturing method of powder toothpaste - Google Patents

Abstract

The disclosed content of the present invention relates to a manufacturing method of powder toothpaste, which comprises the following steps of: (a) preparing raw material fine powder; (b) mixing the raw material fine powder and then compressing the same; (c) crushing a compressed solid and granulating the same; and (d) separating granules of a set size or more among the granules through cribration, wherein the steps (b) and (c) are carried out by a dry granulator. Therefore, the present invention is to provide the manufacturing method of powder toothpaste with improved feeling of use such as powder scattering, and reduced caking.

Description

Manufacturing method of powder toothpaste {MANUFACTURING METHOD OF POWDER TOOTHPASTE}

The content disclosed herein relates to a method for manufacturing powdered toothpaste using a dry granulator.

Unless otherwise indicated herein, material described in this section is not prior art to the claims in this application, and inclusion in this section is not an admission that it is prior art.

The oral cavity is the primary gateway through which all nutrients obtained through food intake and pathogens in the air enter the human body. Teeth directly related to masticatory function, phonation function, and external aesthetic functions, gums that support them, taste, and together with teeth It is an important organ that is responsible for the health of the human body as organs such as the tongue involved in vocalization are organically connected to each other. Toothpaste is defined as an auxiliary agent used for the purpose of cleaning the mouth and teeth, health and beauty. Since ancient times, human beings have used egg shells, stone powder, salt, etc. as tooth polishing agents or mixed with myrrh. Since the release of paste-type toothpaste by Colgate, USA, paste-type toothpaste has been generally used until now.

Paste type toothpaste has been widely used because of its convenience, low price, and easy portability. It has been pointed out that it reduces the efficiency of the abrasive, and recently it has been the subject of controversy about harm to the human body.

Therefore, powder toothpaste supplementing the drawbacks of paste formulation toothpaste has been proposed. For example, Patent Documents 1 and 2 disclose powder toothpaste to which functional powders such as traditional herbal medicine, wheat flour, and bamboo salt are added.

However, the particle size of the powder is too small, and the powder scatters during the process of being seated on a toothbrush or put in the mouth, which is inconvenient to use, and there is a problem in that the powder is caking when stored in a humid bathroom.

Republic of Korea Patent No. 10-0935211 (2009.12.24) Republic of Korea Patent Publication No. 10-2010-0080295 (2010.07.08)

The disclosed information is intended to provide a method for manufacturing powder toothpaste with improved usability and caking phenomenon, such as powder flying.

In addition, it is not limited to the technical problems as described above, and it is obvious that other technical problems may be derived from the following description.

According to one embodiment of the present disclosure, a method for manufacturing toothpaste includes (a) preparing fine powder of raw materials, (b) mixing and then compressing the fine powder of raw materials, (c) crushing the compressed solid into granules. Including, step (b) and (c) are carried out by a dry granulator.

In addition, in the step (a), the raw material fine powder is one selected from 0.1 to 65% by weight of a tooth polishing agent, a foaming agent, a stabilizer, a pH adjusting agent, a flavoring agent, a periodontal disease preventive agent, a coating agent, a sweetener, a colorant, a flavoring agent, and an agent for preventing tartar deposition. 35 to 99.9% by weight of the above additives may be included.

In addition, the dry granulator includes an input unit into which the fine powder of raw material is input, a transfer unit connected to the input unit and rotatingly moving the input fine powder of the raw material, a compression roller unit for compressing the moved fine powder of the raw material by the transfer unit, and a lower side of the compression roller unit. It may include a crushing unit for crushing and granulating the compressed solid.

In addition, the compression roller unit may include one or more rollers driven by engaging with each other.

In addition, the solid compressed in step (c) may be plate-shaped.

In addition, the setting size in step (d) may be 10 to 200 mesh.

According to one embodiment disclosed in the present specification, the manufacturing method of powdered toothpaste has an effect of not using a binder solution, which is advantageous in preventing caking compared to a wet process, and does not cause loss of taste and aroma.

1 is a process chart for explaining a method for manufacturing toothpaste powder according to an embodiment of the present disclosure.
2 is a schematic diagram showing a dry granulator.
3 is a photograph showing the results of Experimental Example 1.
4 is a photograph showing the questionnaire used in Experimental Example 2.

Hereinafter, with reference to the accompanying drawings, look at the configuration and operation effects of preferred embodiments of the disclosure. For reference, in the drawings below, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect the actual size. In addition, like reference numerals refer to like components throughout the specification, and reference numerals for like components in individual drawings will be omitted.

Hereinafter, a method for manufacturing toothpaste powder according to an embodiment of the disclosure in this specification will be described in detail with reference to the drawings.

1 is a process chart for explaining a method for manufacturing toothpaste powder according to an embodiment of the present disclosure.

Referring to FIG. 1, first, a raw material fine powder is prepared (S10).

The raw material fine powder of this embodiment may contain a tooth polishing agent and an additive.

Tooth abrasives are substances added to physically remove plaque on the tooth surface and enhance tooth gloss, whitening, and cleaning power, and include calcium carbonate, calcium phosphate, and anhydrous dibasic calcium phosphate. ), sodium carbonate, silicon dioxide, zirconium silicate, hydrated alumina, calcium pyrophosphate dihydrate, insoluble sodium metaphosphate, aluminum silicate (Aluminum silicate) and at least one selected from alumina trihydrate (Alumina trihydrate) may be used. As the calcium carbonate mentioned above, at least one selected from heavy calcium carbonate and light calcium carbonate may be used, and as calcium phosphate, calcium hydrogen phosphate, calcium hydrogen phosphate, and tricalcium phosphate are selected. More than one can be used. The silicon dioxide is a silicon oxide and is also referred to as silicon anhydride and also referred to as silica.

These tooth abrasives may be included in 0.1 to 65% by weight, preferably 40 to 50% by weight, based on the total weight%. If the tooth abrasive is less than 0.1% by weight, the plaque removal effect on the tooth surface may be insignificant, and 65 If the weight percentage is exceeded, the tooth surface may be damaged or tooth decay may occur.

Additives are materials added to improve the feeling of use and functionality, and at least one selected from foaming agents, stabilizers, pH adjusting agents, flavoring agents, periodontal disease preventive agents, coating agents, sweeteners, colorants, flavoring agents, and calculus deposit preventive agents. Can be used.

These additives may be included in 35 to 99.9% by weight, preferably 50 to 60% by weight, based on the total weight%. If the additive is less than 35% by weight, the user's preference may be significantly lowered due to a poor feeling of use. If the weight percentage is exceeded, the plaque removal or cleaning effect may not be so great.

The foaming agent is a substance added to form stable foam by melting in a solvent. Natural sodium lauryl sulfate, polyoxyethylene polyoxypropylene copolymer, polyoxyethylene hydrogenated caster oil, polyoxyethylene At least one selected from polyoxyethylene sorbitan, fatty acid esters, N-lauroylsalcosylate sodium, N-long-chain acyl glutamate, and sucrose fatty acid ester may be used.

A stabilizer is a substance added to prevent a state change or chemical change of a substance, and vitamin C can be used.

The pH adjusting agent is a material added to provide an oral environment in which tooth decay cannot occur, and at least one selected from among citric acid, potassium hydroxide (KOH), and sodium bicarbonate (NaHCO ₃ ) may be used.

As the fragrance, at least one selected from peppermint, spearmint, menthol, lavender, lemon, cherry, lime, and eucalyptus may be used, and its use is not significantly limited as long as it does not cause discomfort to the user.

As a periodontal disease preventive agent, at least one selected from allantoin, aminocaproic acid, sodium chloride, tocopherol acetate, pyridoxine hydrochloride and tranexamic acid can be used

Then, the raw material fine powder is mixed and compressed (S20).

It is preferable to perform compression after mixing so that the raw material fine powder prepared in step S10 is uniformly mixed. This step and step S30 to be described later may be performed by the dry granulator shown in FIG. 2, and in this embodiment, a roller compactor may be used as the dry granulator, but is not limited thereto.

Referring to FIG. 2 , the dry granulator 100 may include an input unit 110, a transfer unit 120, a compression roller unit 130, and a crushing unit 140, and a discharge unit 150 and a storage unit. (160) may be further included.

The inlet 110 is located on the upper side, and raw material fine powder may be injected, and titanium alloy may be plated with a thickness of 1 to 3 μm on an aluminum-magnesium alloy containing silicon so as not to be easily corroded by external factors.

The transfer unit 120 is connected to the input unit 110 and can rotate and move the input raw material powder to the compression roller unit 130 to be described later. On the other hand, the transfer unit 120 includes a known linear screw feeder, but, for example, it is possible to implement a combination of a horizontal screw feeder and a vertical screw feeder or a combination of a horizontal screw linear feeder and an inclined screw feeder.

The compression roller unit 130 may compress the raw material fine powder moved by the transfer unit 120 into a solid, and the compressed solid may have a plate shape. On the other hand, the compression roller unit 140 includes one or more rollers driven by engaging with each other, the diameter of the rollers is 100 to 150 mm, preferably 100 to 120 mm, and the rotational speed is 5 to 22 rpm, preferably 12 to 18 rpm. And, the moving speed may be 20 to 120 rpm, preferably 60 to 100 rpm.

For example, the compression roller unit 130 includes a first roller 131 and a second roller 132 facing each other, and the first roller 131 is pressured and supported by the second roller 132. The diameter of the first roller 131 may be larger than that of the second roller 132 . In addition, each surface of the first roller 131 and the second roller 132 is provided with a coating layer, the coating layer of the first roller 131 may be formed thinner than the coating layer of the second roller 132, the second The surface roughness of the coating layer of the roller 132 may be greater than the surface roughness of the coating layer of the first roller 131, but is not limited thereto.

The crushing unit 140 is located below the compression roller unit 130 and crushes and granulates the compressed solid at a milling speed of 50 to 150 rpm, preferably 70 to 120 rpm. If the above-mentioned milling speed is out of range, the degree of dispersion of the granule size may increase. The crushing unit 140 will be described in more detail below in the process of step S30 to be described below.

The discharge unit 150 may be provided below the crushing unit 140 to discharge granules crushed by the crushing unit 140 .

The storage unit 160 may be a space for storing the granules discharged from the discharge unit 150 and may be formed in a double layer to minimize external influence.

Then, the compressed solid is crushed and granulated (S30).

The dispersion of the granule size may also be kept low by crushing and granulating the solid compressed in the step S20 in the range of 10 to 200 mesh, preferably 20 to 140 mesh. On the other hand, dry granulation is advantageous in forming high-density granules compared to wet granulation.

For example, powder toothpaste in a fine powder state may be blown away during use because the particles are small and light, or when powder toothpaste is put into the mouth, it may cause unintentional inhalation into the pharynx. In the case of , the problem of being blown away during use or sucked into the pharynx in the mouth may not occur. Therefore, the granular toothpaste of this embodiment can greatly improve usability compared to the conventional powder toothpaste in a fine powder state.

Then, among the granules, granules having a set size or larger are divided into four parts (S40).

Among the granules crushed in step S30, granules outside the range of a set size or more, preferably 10 to 200 mesh, most preferably 20 to 140 mesh are removed, and only granules within the range of 10 to 200 mesh are obtained by sieving can do.

In the sieving of this step, only granules in the above-mentioned range can be separated using one sieve selected from a parallel sieve, a rotating sieve, and a vibrating sieve.

<Example 1>

A raw material fine powder composed of 100 g of tooth abrasive and 92 g of additives was prepared, and the raw material fine powder was mixed using a dry granulator, compressed, crushed, and granulated.

<Comparative Example 1>

Powdered toothpaste was prepared by mixing 100 g of tooth polishing agent and 92 g of additives.

<Comparative Example 2>

A fine powder of raw materials consisting of 100g of tooth abrasive and 92g of additives, a binder solution consisting of 45g of granule implant solution (70% solution) mixed with sorbitol and water, 4.5g of purified water, and 3g of fragrance were prepared, and the raw material fine powder was prepared using a wet granulator. The binder solution was sprayed on 186g at 45° C., granulated and pulverized, and then dried in an electrothermal heating dryer.

Experimental Example 1. Evaluation of property change

Experiments were conducted as follows in order to measure the change in properties of the powder toothpaste prepared in Example 1 and Comparative Examples 1 and 2.

in an empty aluminum container Example 1 and Comparative Examples 1 and 2 contained toothpaste powder and stored at room temperature for 30 days, and then the change in appearance was confirmed with the naked eye.

As a result, referring to FIG. 3, the difference in properties between Example 1 and Comparative Examples 1 and 2, except that the shape is not natural when the powder toothpaste of Comparative Example 1 is poured and the angle is angled as when the flour is poured there wasn't much After 30 days, Example 1 and Comparative Example 1 were not significantly different from the first in terms of properties, but in the case of Comparative Example 2, the contents did not pour out even when the container was held upside down because it was hardened. Accordingly, it was found that the presence or absence of the granule prosthesis had a significant effect on caking.

Experimental Example 2. Preference evaluation

The powdered toothpaste of Example 1 and Comparative Examples 1 and 2 was marked as A, B, and bottle, and 0.4g was given to 10 inspectors, and after brushing their teeth 3 times for 20 seconds per item, the questionnaire shown in FIG. Preference was assessed by form. Toothbrushes were provided for every brushing, and water gargles were required at least 10 times before evaluation.

The feeling of use, cleaning power, feeling of refreshment, removal of bad breath, and preference for taste/flavor were evaluated using a 5-point scale, and the results are shown in Table 1 below.

division Example 1 Comparative Example 1 Comparative Example 2 feeling of use 5.0 2.4 3.3 cleaning power 4.6 3.3 4.0 refreshing feeling 5.0 4.2 4.2 bad breath removal 4.8 4.2 4.3 taste/smell 4.9 4.0 4.3 average 4.86 3.62 4.02 5: very good, 4: good, 3: average, 2: bad, 1: very bad

As a result, it was confirmed that Example 1 had the highest preference with 4.86 points. On the other hand, in the case of Comparative Example 1, the usability item received a very low score of 2.4 points, which was found to be due to powder scattering when powdered toothpaste was placed on the toothbrush or put into the mouth.

The disclosed content is only an example, and can be variously modified and implemented by those skilled in the art without departing from the subject matter of the claim claimed in the claims, so the protection scope of the disclosed content is limited to the specific It is not limited to the examples.

100: dry granulator 110: input unit
120: transfer unit 130: compression roller unit
131: first roller 132: second roller
140: crushing unit 150: discharge unit
160: storage unit

Claims (6)

(a) preparing raw material fine powder;
(b) mixing and compressing the raw material fine powder;
(c) crushing and granulating the compressed solid; and
(d) dividing the granules having a set size of 20 to 140 mesh among the granules;
Steps (b) and (c) include an input unit into which the raw material fine powder is input;
a transfer unit connected to the input unit and rotationally moving the input fine powder of the raw material;
a compression roller unit for compressing the raw material fine powder moved by the transfer unit; and
A crushing unit provided at the lower side of the compression roller unit to crush and granulate the compressed solid,
Crushing speed is 70 ~ 120rpm crushing unit; Method for producing toothpaste powder carried out by a dry granulator comprising a.
According to claim 1,
In the step (a), the raw material fine powder,
Powder containing 0.1 to 65% by weight of a tooth abrasive and 35 to 99.9% by weight of one or more additives selected from foaming agents, stabilizers, pH adjusting agents, flavoring agents, periodontal disease preventive agents, coating agents, sweeteners, coloring agents, flavoring agents, and tartar deposition preventive agents Method for manufacturing toothpaste.
delete According to claim 1,
The method of manufacturing toothpaste powder comprising one or more rollers driven by engaging with each other.
According to claim 1,
The method of producing a powder toothpaste in which the solid compressed in step (c) is plate-shaped.
delete

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