Sunscreen composition and preparation method thereof
A composition and extract technology, applied in the field of sunscreen compositions and their preparation, to achieve the effects of uniform texture, good sunscreen effect and safety, and good safety
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1～8
[0066] Each embodiment formula is as table 1:
[0067] Table 1 Examples 1-8
[0068]
[0069]
[0070] The preparation method of sunscreen composition is:
[0071] (1) Mix hemp stalk core powder, other natural plant extracts and solvents, and stir at a magnetic stirring speed of 400-600r / min for 10-40min to obtain component A with a uniform system;
[0072] (2) Mix the emulsifier and natural oil as the oil phase and heat to 65-95°C, and heat the remaining water phase to 65-95°C;
[0073] (3) Homogenize the water phase at a homogenization speed of 5000-20000r / min, slowly add the oil phase, and homogenize for 2-12 minutes to obtain an emulsion, namely component B;
[0074] (4) Stir component B at a stirring speed of 400-600 r / min, slowly add the uniformly mixed component A, and stir for 10-40 minutes to obtain a uniform sunscreen composition.
Embodiment 9
[0076] The solution method is used to measure the ultraviolet absorption properties of the samples in the sunscreen compositions prepared in Examples 1 to 8, and the specific steps are:
[0077] 1. Turn on the power supply of the model SHIMADZU UV-3600 UV–vis–NIR ultraviolet spectrophotometer, preheat the spectrophotometer, and set the detection wavelength to 200-400nm;
[0078] 2. Place the quartz cuvette filled with the blank sample in the sample light path and the reference light path, and adjust the zero point of the instrument;
[0079] 3. Place the cuvette of the sample to be tested in the sample optical path, and place another quartz cell with a blank sample in the reference optical path, respectively measure the UV absorbance values of different samples, and then export the measured data.
[0080] The ultraviolet absorbing performance testing result of sunscreen composition that embodiment 1,3,5 makes is respectively as follows figure 1 , 2 , 3, the results show th...
Embodiment 10
[0082] The instrumental method measures the SPF value of the sample in the sunscreen composition that embodiment 1~8 makes, and concrete steps are:
[0083] 1. Cut the Transpore 3M tape into a size of 10.12cm*7.6cm, and paste it on the test frame;
[0084] 2. Accurately weigh 153.824±0.2mg (2mg sample / cm 2 ) of the sample to be tested, spread the sample evenly on the 3M tape (try to control the time at about 30s), and make three parallel samples according to the above method;
[0085] 3. Turn on the power to preheat the instrument, test the SPF value of the sample, each sample shall not be less than 6 points; measure three parallel samples in sequence.
[0086] Table 2 SPF test results
[0087] serial number Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 SPF value 4 12 10 4 7 14 1.09 0.05
[0088] The results show that the SPF values of the sunscreen compositions provided by Examples 2, 3 and 6 of...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More