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Double-layer silicon dioxide coated granule and preparation method and application thereof

A technology of silica and particles, which is applied in the field of double-layer silica-coated particles and its preparation, can solve the problems of destroying the color and taste of toothpaste, being easily oxidized, and the color of natural antibacterial agents is heavy, so as to avoid being easily oxidized, Improve stability and wrap stability

Active Publication Date: 2020-09-11
GUANGZHOU FEIXUE MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this kind of toothpaste has certain antibacterial and anti-inflammatory effects and prevents gingival swelling and pain, it tastes bitter. It will destroy the color and taste of the toothpaste and affect the stability of the toothpaste if it is directly used in the toothpaste formula.
[0006] In summary, there are technical problems in the prior art, such as heavy color of natural antibacterial agents, easy to be oxidized, and affecting the mouthfeel of toothpaste.

Method used

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  • Double-layer silicon dioxide coated granule and preparation method and application thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, a kind of double-layer silica coated particle

[0031] The preparation method of the double-layer silica-coated particles comprises the following steps:

[0032] S1, the preparation mass percentage is the ethyl cellulose solution of 3%;

[0033] S2. Add 2kg of silicon dioxide powder and 0.2kg of jiubing extract to the mixer, the mixing weight ratio of silicon dioxide powder and jiubing extract is 10:1, and the average particle size of silicon dioxide is 9 μm. The particle size of the Bing extract is 10 μm, and the premix is ​​prepared by stirring for 10 minutes at a rotation speed of 400 rpm;

[0034] S3. Put the premix prepared in step S2 into the fluidized granulation dryer, set the fan frequency to 25Hz, the inlet air temperature to 60°C, and the outlet air temperature to 40°C, start the program, and start the atomization after the fan runs for 5 minutes device, spray ethyl cellulose solution, the injection speed of ethyl cellulose solution is 0.5m 3...

Embodiment 2

[0037] Example 2, a double-layer silica-coated particle

[0038] The preparation method of the double-layer silica-coated particles comprises the following steps:

[0039] S1, the preparation mass percentage is the ethyl cellulose solution of 3.5%;

[0040] S2. Add 3kg of silicon dioxide powder and 0.4kg of jiubing extract to the mixer, the mixing weight ratio of silicon dioxide powder and jiubing extract is 10:1.3, and the average particle size of silicon dioxide is 13 μm. The particle size of the Bing extract is 20 μm, and the premix is ​​prepared by stirring for 10 minutes at a rotation speed of 400 rpm;

[0041] S3. Add the premix prepared in step S2 into the fluidized granulation dryer, set the fan frequency to 28Hz, the inlet air temperature to 65°C, and the outlet air temperature to 43°C, start the program, and start the atomization after the fan runs for 5 minutes device, spray ethyl cellulose solution, the injection speed of ethyl cellulose solution is 0.6m 3 / h, o...

Embodiment 3

[0044] Embodiment 3, a kind of double-layer silica coated particle

[0045] The preparation method of the double-layer silica-coated particles comprises the following steps:

[0046] S1, the preparation mass percentage is the ethyl cellulose solution of 4%;

[0047] S2. Add 3kg of silicon dioxide powder and 0.45kg of jiubing extract to the mixer, the mixing weight ratio of silicon dioxide powder and jiubing extract is 10:1.5, and the average particle size of silicon dioxide is 15 μm. The particle size of the Bing extract is 35 μm, and the premix is ​​prepared by stirring for 10 minutes at a rotation speed of 400 rpm;

[0048] S3. Put the premix prepared in step S2 into the fluidized granulation dryer, set the fan frequency to 30Hz, the inlet air temperature to 70°C, and the outlet air temperature to 45°C, start the program, and start the atomization after the fan runs for 5 minutes device, spray ethyl cellulose solution, the injection speed of ethyl cellulose solution is 0.7...

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Abstract

The present invention belongs to the technical field of silicon dioxide and specifically relates to a double-layer silicon dioxide coated granule and a preparation method and an application thereof. Silicon dioxide powder and an ilex rotunda bark extract as core materials, ethyl cellulose is used as a binder, the materials are further granulated in one step, and then centrifugal ball-throwing granulation is conducted, so that the granule materials form a double-layer silicon dioxide structure. The silicon dioxide coated granule is directly added to a toothpaste preparation technology as a friction agent, a technology formula of the toothpaste is simplified, influences of the ilex rotunda bark extract on color and appearance of the toothpaste are effectively reduced and stability of the ilex rotunda bark extract in the toothpaste body is improved.

Description

technical field [0001] The invention belongs to the technical field of silicon dioxide, and in particular relates to a double-layer silicon dioxide-coated particle and a preparation method and application thereof. Background technique [0002] There are aerobic bacteria, a small amount of anaerobic bacteria and some molds in healthy oral cavity, and different colonies grow in balance. Once the micro-ecological balance in the oral cavity is broken, it will lead to an increase in the number of certain pathogenic bacteria and cause common oral problems (such as dental caries, gingivitis, oral ulcers, etc.), so many functional toothpastes will add some antibacterial substances to suppress harmful bacteria. Prevent and alleviate oral problems by promoting the growth of bacteria. There are a variety of pathogenic bacteria in the oral cavity, because one or more antibacterial substances must be used to effectively inhibit the number of pathogenic bacteria in the oral cavity, and t...

Claims

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Application Information

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IPC IPC(8): A61K8/9789A61K8/25A61K8/73A61Q11/00A61P31/04
CPCA61K8/25A61K8/731A61K2800/28A61K2800/56A61K2800/805A61Q11/00A61K8/9789A61P31/04
Inventor 熊峰胡非林英光侯灿明林超聪
Owner GUANGZHOU FEIXUE MATERIAL TECH
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