CN216106710U - Pearlescent pigment - Google Patents
Pearlescent pigment Download PDFInfo
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- CN216106710U CN216106710U CN202021727757.8U CN202021727757U CN216106710U CN 216106710 U CN216106710 U CN 216106710U CN 202021727757 U CN202021727757 U CN 202021727757U CN 216106710 U CN216106710 U CN 216106710U
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- oxide layer
- pearlescent pigment
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- silica particles
- iron oxide
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Abstract
The utility model discloses a pearlescent pigment which comprises a base material, an alumina layer coated on the base material and an iron oxide layer coated on the alumina layer, wherein the base material comprises silica particles with D50 of 1-60um and mica sheets or glass sheets with D50 of 1-60 um. Compared with the prior art, the pearlescent pigment adopts a mixed base material comprising silica particles and mica sheets or glass sheets, wherein the silica can increase skin feel and reduce oil absorption, and is suitable for cosmetics. The aluminum oxide layer has adsorbability, can increase surface negative charges and is easy to combine with ferric trichloride crystals; the coating rate of the iron oxide layer is 65-90%, and bright color phase can be achieved.
Description
Technical Field
The utility model belongs to the field of pearlescent pigments, and particularly relates to a pearlescent pigment used for cosmetics.
Background
Heretofore, in the pearl pigment industry, pearl pigments for cosmetics are generally coated with a flaky substrate, and are not coated with a substrate of a different shape after being mixed. Because the deposition rates of the oxides are different when the base materials with different shapes are mixed and then coated, the coating process is difficult to control, so that the hue difference is large and the surface smoothness is poor. Influence the brilliance of color, poor skin feel and uneven coverage.
In view of the above, there is a real need to provide a pearlescent pigment which can increase skin feel.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: overcomes the defects of the prior art and provides the pearlescent pigment which can increase the skin feel.
In order to achieve the above object of the utility model, the present invention provides a pearlescent pigment, which comprises: the aluminum oxide coating comprises a base material, an aluminum oxide layer coated on the base material and an iron oxide layer coated on the aluminum oxide layer.
As an improvement of the pearlescent pigment, the thickness of the substrate is 10-60um, the thickness of the aluminum oxide layer is 10-30nm, and the thickness of the iron oxide layer is 120-160 nm.
As an improvement of the pearlescent pigment of the present invention, the substrate comprises silica particles and mica flakes or comprises silica particles and glass flakes.
As an improvement of the pearlescent pigment of the present invention, the D50 of the silica particles is 1-60um, and the D50 of the mica plates or glass plates is 1-60 um.
As an improvement of the pearlescent pigment of the present invention, the silica particles: the mass ratio of the mica sheet or the glass sheet is 0.01-99.
As an improvement of the pearlescent pigment of the present invention, the silica particles: the mass ratio of the mica sheet or the glass sheet is 0.4-1.5.
As an improvement of the pearlescent pigment of the present invention, the silica particles: the mass ratio of the mica sheet or the glass sheet is 0.6-1.
As an improvement of the pearlescent pigment, the coating rate of the iron oxide layer is 65-90%.
Compared with the prior art, the pearlescent pigment adopts a mixed substrate comprising silica particles and mica sheets or glass sheets, wherein the silica can increase skin feel and reduce oil absorption, and is particularly suitable for cosmetics. In addition, the aluminum oxide layer has adsorbability, can increase surface negative charge, and is easy to combine with ferric trichloride crystals; the coating rate of the iron oxide layer is 65-90%, and bright color phase can be achieved. The pearlescent pigment has reasonable structural design and simple structure.
Drawings
The pearlescent pigments of the present invention are described in detail below with reference to the accompanying drawings and the detailed description, wherein:
FIG. 1 is a schematic structural view of a pearlescent pigment of the present invention.
Detailed Description
In order to make the objects, technical solutions and technical effects of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1, the present invention provides a pearlescent pigment, which comprises: the aluminum oxide layer comprises a base material 10, an aluminum oxide layer 20 coated on the base material 10, and an iron oxide layer 30 coated on the aluminum oxide layer 20.
According to one embodiment of the pearlescent pigment of the present invention, the substrate 10 includes silica particles, and mica flakes or glass flakes, wherein D50 of the silica particles is 1 to 60um, and D50 of the mica flakes or glass flakes is 1 to 60 um. Silica particles: the mass ratio of the mica sheet or the glass sheet needs to adopt a reasonable range: the ratio is higher, the coating is difficult to carry out, and the color saturation is lower; if the ratio is low, the oil absorption value will be high, and the skin feel will be poor. For example, according to one embodiment of the utility model, the silica particles: the mass ratio of the mica sheet or the glass sheet is 0.01-99, and the mass ratio of the silicon dioxide particles: the mass ratio of mica flakes or glass flakes is preferably 0.4 to 1.5, silica particles: the mass ratio of the mica sheet or the glass sheet is preferably 0.6 to 1.
According to one embodiment of the pearlescent pigment, the thickness of the substrate 10 is 10-60um, the thickness of the aluminum oxide layer 20 is 10-30nm, the thickness of the iron oxide layer 30 is 120-160nm, and the coating rate of the iron oxide layer is 65-90%.
The preparation process of the pearlescent pigment comprises the following steps:
1. 30g of silica spheres having a D50 value of 10um and 30g of natural mica having a D50 value of 12um are put into a 2000mL beaker together, 900mL of pure water is added, and the temperature is raised to 75 ℃ with stirring.
2. And (3) adjusting the pH value of the solution system to 7 by using 10% hydrochloric acid, dropwise adding 20mL of 1mol/L aluminum trichloride solution into the solution, and stirring for 10 min.
3. A total of 680mL of 0.4mol/L ferric chloride solution was added dropwise to the solution, and the pH was maintained at 3.5 with 30% sodium hydroxide solution, the end point being the magenta phase.
4. And after the sample is obtained, continuously stirring for 30min, performing suction filtration, washing for 5 times, drying at 100 ℃, and calcining at 760 ℃ to obtain a finished product. The product is pearly-lustre with purple red color, and is smooth and fine when applied on skin.
In conjunction with the above detailed description of the specific embodiments of the present invention, it can be seen that the pearlescent pigments of the present invention employ a hybrid substrate 10 comprising silica particles, and mica flakes or glass flakes, relative to the prior art, wherein the silica increases skin feel and reduces oil absorption, and is particularly useful in cosmetics. In addition, the aluminum oxide layer 20 has adsorbability, can increase surface negative charges, and is easy to combine with ferric trichloride crystals; the coating rate of the iron oxide layer 30 is 65-90%, and bright color can be achieved. The pearlescent pigment has reasonable structural design and simple structure.
Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (3)
1. A pearlescent pigment, characterized by comprising: the aluminum oxide coating comprises a base material, an aluminum oxide layer coated on the base material and an iron oxide layer coated on the aluminum oxide layer.
2. The pearlescent pigment of claim 1, wherein the substrate has a thickness of 10-60um, the aluminum oxide layer has a thickness of 10-30nm, and the iron oxide layer has a thickness of 120-160 nm.
3. The pearlescent pigment of claim 1, wherein the iron oxide layer has a coating rate of 65% to 90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021727757.8U CN216106710U (en) | 2020-08-18 | 2020-08-18 | Pearlescent pigment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021727757.8U CN216106710U (en) | 2020-08-18 | 2020-08-18 | Pearlescent pigment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216106710U true CN216106710U (en) | 2022-03-22 |
Family
ID=80685689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021727757.8U Active CN216106710U (en) | 2020-08-18 | 2020-08-18 | Pearlescent pigment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216106710U (en) |
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2020
- 2020-08-18 CN CN202021727757.8U patent/CN216106710U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: pearlescent pigment Effective date of registration: 20230104 Granted publication date: 20220322 Pledgee: China Construction Bank Corporation Liuzhou Branch Pledgor: GUANGXI CHESIR PEARL MATERIAL Co.,Ltd. Registration number: Y2023450000001 |