CN103610602B - The preparation method of suspended particles used for cosmetic and application thereof - Google Patents
The preparation method of suspended particles used for cosmetic and application thereof Download PDFInfo
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- CN103610602B CN103610602B CN201310610643.3A CN201310610643A CN103610602B CN 103610602 B CN103610602 B CN 103610602B CN 201310610643 A CN201310610643 A CN 201310610643A CN 103610602 B CN103610602 B CN 103610602B
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Abstract
The present invention discloses a kind of preparation method of suspended particles used for cosmetic, comprises the following steps: 1) be that the sulfuric acid solution of 0.3-0.6mol/L is placed in container by free acid concentration, control temperature is at 20-40 DEG C; 2) sodium silicate solution that free alkali concentration is 0.3-0.6mol/L is added while stirring; 3) when pH value reaches 3.8-4.2, stop adding sodium silicate solution, add ethyl cellulose or PE powder; 4) continue to add sodium silicate solution that free alkali concentration is 0.3-0.6mol/L while stirring until pH value reaches 4.8-5.0; 5) continue to stir 1-2 hour; 6) dry, sieve.Preparation method technique of the present invention is simple, need not mechanical activation comminution again, and the suspended particles shape matching prepared rule, can be suspended in 70% sorbitol solution.
Description
Technical field
The present invention relates to material science, particularly a kind of preparation method of suspended particles used for cosmetic and application thereof.
Background technology
In the production process of cosmetic skin product, due to reasons such as friction and visual effects, in cosmetics, with the addition of suspended particles.The method of existing production suspended particles is generally: in soda acid neutralization reaction under agitation, generates the hydrogel of silica polymerization, then hydrogel is exchanged into alcogel through dehydrated alcohol, through centrifugalize, dries, pulverizes, sieving obtains.The particle that prior art is worked it out, out-of-shape, has sharp-pointed corner angle, and hardness ratio is comparatively large, and density is also larger, can sink to the bottom very soon in 70% sorbitol solution, causes the cosmetics finished particle made to add uneven.
Summary of the invention
In sum, the present invention is necessary the preparation method providing a kind of suspended particles used for cosmetic, and preparation technology is simple, need not mechanical activation comminution again, and the suspended particles shape matching prepared rule, can be suspended in 70% sorbitol solution.
In addition, there is a need to the application of the suspended particles providing a kind of above-mentioned preparation method to obtain.
A preparation method for suspended particles used for cosmetic, comprises the following steps:
1) be that the sulfuric acid solution of 0.3-0.6mol/L is placed in container by free acid concentration, control temperature is at 20-40 DEG C;
2) sodium silicate solution that free alkali concentration is 0.3-0.6mol/L is added while stirring;
3) when pH value reaches 3.8-4.2, stop adding sodium silicate solution, add ethyl cellulose or PE powder;
4) continue to add sodium silicate solution that free alkali concentration is 0.3-0.6mol/L while stirring until pH value reaches 4.8-5.0;
5) continue to stir 1-2 hour;
6) dry, sieve.
Wherein, described step 2) with described step 4) in add described sodium silicate solution speed can be 500-3000 liter per hour, be preferably 1500-2500 liter per hour.
Wherein, the quality m of described ethyl cellulose or PE powder meets preferred following relational expression: n × V × 60 × 0.4≤m≤n × V × 60, and n is the free acid concentration of described sulfuric acid solution, unit is mol/L, V is the volume of described sulfuric acid solution, and unit is the unit of L, m is g.Particularly preferably meet following relational expression: n × V × 60 × 0.5≤m≤n × V × 60 × 0.8, n is the free acid concentration of described sulfuric acid solution, and the volume of unit to be mol/L, V be described sulfuric acid solution, unit is the unit of L, m is g.
Wherein, the molecular weight of described ethyl cellulose or PE powder is preferably 5000-20000.
Wherein, pigment is added while adding ethyl cellulose or PE powder in described step 3), described pigment can be CI-74160 or CI-12490 or CI-74260, and the amount of the pigment added in described step 3) is that a meets following relationship: 0.5% × (n × V × 60+m)≤a≤3.0% × (n × V × 60+m).The color index number of pigment of doing can be CI-74160 or CI-12490 or CI-74260.
Wherein, the mixing time of described step 5) is preferably 1 hour.
Wherein, sieve after described step 6) drying and obtain 60-120 object suspended particles.
A kind of preparation method of suspended particles used for cosmetic as above prepares the application of suspended particles in cosmetics.
Sodium silicate of the present invention and sulfuric acid solution are under specific proportioning, under certain reaction temperature condition, by controlling adding speed and adding a certain amount of ethyl cellulose of sodium silicate, make the suspended particles regular shape prepared, size is even, and longer at the suspension time of 70% sorbitol solution, can well be applied in cosmetics.
Compare prior art, the suspended particles shape matching used for cosmetic rule that preparation method of the present invention obtains, smooth surface, can be suspended in 70% sorbitol solution for a long time, and preparation technology is simple, need not mechanical activation comminution again.
Detailed description of the invention
Below in conjunction with some detailed description of the invention, the preparation method of the present invention's suspended particles used for cosmetic and application thereof are described further.Specific embodiment is for further describing the present invention, non-limiting protection scope of the present invention.
Material Source
Sodium silicate: the sub-high-class product in sodium silicate solid Qingdao sieve ground;
PE powder: model DX-50 particle diameter: 20-30 micron melt index: 50;
Ethyl cellulose: molecular weight 20000 food stage;
Ethyl cellulose: molecular weight 50000 food stage;
Other Material Source is commercially available.
The method of testing of suspension time: (joined by suspended particles in the sorbitol aqueous solution of 70wt%, start timing, when all sinking to bottom to suspended particles, terminate timing, the time of gained is suspension time)
Embodiment 1
Getting 10L free acid concentration is that the sulfuric acid solution of 0.3mol/L is placed in container, under the condition of 25 DEG C, the speed being 2000 liter per hour with speed while stirring adds the sodium silicate solution that free alkali concentration is 0.3mol/L, the pH value of reactant liquor is measured with pH meter, when reaction density is 3.8, stop adding sodium silicate solution, add the ethyl cellulose of 72g, continue to stir and add sodium silicate solution that free alkali concentration is 0.3mol/L until the pH value of reactant liquor reaches 4.8, continue stirring 1 hour, and drying and dehydrating, sieve and obtain 60-120 object suspended particles.And the suspended particles of gained are joined in the sorbitol solution of 70wt%, test the suspension time record that arrives in the following table, and the shape of perusal suspended particles.
Embodiment 2
Getting 10L free acid concentration is that the sulfuric acid solution of 0.4mol/L is placed in container, under the condition of 25 DEG C, the speed being 1800 liter per hour with speed while stirring adds the sodium silicate solution that free alkali concentration is 0.3mol/L, the pH value of reactant liquor is measured with pH meter, when reaction density is 4.2, stop adding sodium silicate solution, add the ethyl cellulose of 120g, continue to stir and add sodium silicate solution that free alkali concentration is 0.3mol/L until the pH value of reactant liquor reaches 5, continue stirring 1 hour, and drying and dehydrating, sieve and obtain 60-120 object suspended particles.And the suspended particles of gained are joined in the sorbitol solution of 70wt%, test the suspension time record that arrives in the following table, and the shape of perusal suspended particles.
Embodiment 3
Getting 10L free acid concentration is that the sulfuric acid solution of 0.6mol/L is placed in container, under the condition of 25 DEG C, the speed being 1800 liter per hour with speed while stirring adds the sodium silicate solution that free alkali concentration is 0.6mol/L, the pH value of reactant liquor is measured with pH meter, when reaction density is 3.8, stop adding sodium silicate solution, add the PE powder of 252g, continue to stir and add sodium silicate solution that free alkali concentration is 0.6mol/L until the pH value of reactant liquor reaches 5, continue stirring 1 hour, and drying and dehydrating, sieve and obtain 60-120 object suspended particles.And the suspended particles of gained are joined in the sorbitol solution of 70wt%, test the suspension time record that arrives in the following table, and the shape of perusal suspended particles.
Embodiment 4
Getting 10L free acid concentration is that the sulfuric acid solution of 0.6mol/L is placed in container, under the condition of 25 DEG C, the speed being 1800 liter per hour with speed while stirring adds the sodium silicate solution that free alkali concentration is 0.6mol/L, the pH value of reactant liquor is measured with pH meter, when reaction density is 4, stop adding sodium silicate solution, add the PE powder of 288g, continue to stir and add sodium silicate solution that free alkali concentration is 0.6mol/L until the pH value of reactant liquor reaches 5, continue stirring 1 hour, and drying and dehydrating, sieve and obtain 60-120 object suspended particles.And the suspended particles of gained are joined in the sorbitol solution of 70wt%, test the suspension time record that arrives in the following table, and the shape of perusal suspended particles.
Embodiment 5
Getting 10L free acid concentration is that the sulfuric acid solution of 0.6mol/L is placed in container, under the condition of 25 DEG C, the speed being 2000 liter per hour with speed while stirring adds the sodium silicate solution that free alkali concentration is 0.3mol/L, the pH value of reactant liquor is measured with pH meter, when reaction density is 4, stop adding sodium silicate solution, add the ethyl cellulose of 360g, continue to stir and add sodium silicate solution that free alkali concentration is 0.6mol/L until the pH value of reactant liquor reaches 5, continue stirring 1 hour, and drying and dehydrating, sieve and obtain 60-120 object suspended particles.And the suspended particles of gained are joined in the sorbitol solution of 70wt%, test the suspension time record that arrives in the following table, and the shape of perusal suspended particles.
Comparative example:
Get commercially available general silica particle, test its suspension time, and the surface of perusal suspended particles and shape.
As can be seen from the above table, the suspended particles shape matching rule that the method for the invention is obtained, can be suspended in 70% sorbitol solution for more time.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a preparation method for suspended particles used for cosmetic, is characterized in that comprising the following steps:
1) be that the sulfuric acid solution of 0.3-0.6mol/L is placed in container by free acid concentration, control temperature is at 20-40 DEG C;
2) add the sodium silicate solution that free alkali concentration is 0.3-0.6mol/L while stirring, the interpolation speed of described sodium silicate solution is 500-3000 liter per hour;
3) when pH value reaches 3.8-4.2, stop adding sodium silicate solution, add ethyl cellulose or PE powder, the molecular weight of described ethyl cellulose or PE powder is 5000-20000;
The quality m of described ethyl cellulose or PE powder meets following relational expression: n × V × 60 × 0.5≤m≤n × V × 60 × 0.8, and n is the free acid concentration of described sulfuric acid solution, the volume of unit to be mol/L, V be described sulfuric acid solution, and unit is the unit of L, m is g;
4) continue to add sodium silicate solution that free alkali concentration is 0.3-0.6mol/L while stirring until pH value reaches 4.8-5.0;
5) stirring 1 hour is continued;
6) dry, sieve.
2. the preparation method of suspended particles used for cosmetic as claimed in claim 1, is characterized in that:
Described step 3) in add ethyl cellulose or PE powder while add pigment.
3. the preparation method of suspended particles used for cosmetic as claimed in claim 2, is characterized in that:
Described step 3) in the amount of pigment that adds be that a meets following relationship: 0.5% × (n × V × 60+m)≤a≤3.0% × (n × V × 60+m).
4. the preparation method of the suspended particles used for cosmetic as described in any one of claim 1-3, is characterized in that:
Described step 6) sieving after drying obtains 60-120 object suspended particles.
5. the suspended particles that the preparation method of the suspended particles used for cosmetic as described in any one of claim 1-4 prepares are preparing the application in cosmetics.
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| CN201310610643.3A CN103610602B (en) | 2013-11-27 | 2013-11-27 | The preparation method of suspended particles used for cosmetic and application thereof |
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| CN201310610643.3A CN103610602B (en) | 2013-11-27 | 2013-11-27 | The preparation method of suspended particles used for cosmetic and application thereof |
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| CN103610602B true CN103610602B (en) | 2016-01-20 |
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| CN104087022B (en) * | 2014-06-30 | 2016-06-29 | 肇庆金三江硅材料有限公司 | A kind of silicon dioxide of hud typed cladding pigment and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760051A (en) * | 2008-11-07 | 2010-06-30 | 南通芯迎设计服务有限公司 | Preparation method of titanium dioxide power with silicon being coated on surface |
| CN103073008A (en) * | 2013-01-31 | 2013-05-01 | 中国科学技术大学 | Preparation method of silicon dioxide aerogel |
| CN103359742A (en) * | 2013-06-25 | 2013-10-23 | 安徽敬业纳米科技有限公司 | Method for modifying nano silica |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760051A (en) * | 2008-11-07 | 2010-06-30 | 南通芯迎设计服务有限公司 | Preparation method of titanium dioxide power with silicon being coated on surface |
| CN103073008A (en) * | 2013-01-31 | 2013-05-01 | 中国科学技术大学 | Preparation method of silicon dioxide aerogel |
| CN103359742A (en) * | 2013-06-25 | 2013-10-23 | 安徽敬业纳米科技有限公司 | Method for modifying nano silica |
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Address after: High tech Zone 526238 in Guangdong province Zhaoqing City Yingbin Road, Guangdong Industrial Park Applicant after: ZHAOQING JINSANJIANG SILICON MATERIALS CO., LTD. Address before: High tech Zone 526238 in Guangdong province Zhaoqing City Yingbin Road, Guangdong Industrial Park Applicant before: Zhaoqing Jinsanjiang Chemical Co., Ltd. |
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Address after: High tech Zone 526238 in Guangdong province Zhaoqing City Yingbin Road, Guangdong Industrial Park Patentee after: Jinsanjiang (Zhaoqing) silicon material Co., Ltd Address before: High tech Zone 526238 in Guangdong province Zhaoqing City Yingbin Road, Guangdong Industrial Park Patentee before: Zhaoqing Jinsanjiang Silicon Material Co., Ltd. |
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