A bionic moisturizing model and its evaluation method
A technology of models and bionic membranes, which is applied in measuring devices, material weighing, and material absorption weighing, etc. It can solve problems such as unsuitable moisturizing system, difficulty in building models, individual differences, and difficult operation time periods in experiments.
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Embodiment 1
[0023] Embodiment 1: Construction of the bionic moisturizing model and its evaluation method according to the present invention
[0024] 1. Preparation of infiltrating moisturizer
[0025] According to the following mass percentages, weigh each component respectively:
[0026]
[0027] Take purified water, add sodium hyaluronate, heat and stir until it is completely dissolved; then add betaine, heat and stir until it is completely dissolved; after cooling down to room temperature, add sodium pyrrolidone carboxylate, and stir evenly to obtain the infiltration moisturizer .
[0028] 2. The test layer is treated with an infiltration moisturizer
[0029] Take several pieces of circular rapid quantitative filter paper with a diameter of 3-4cm, and place them in a circular container with an inner diameter of 3-4cm respectively. After each filter paper is infiltrated with 2.0g of infiltration and humectant, take it out and weigh it accurately, and record it as M 0 , then put it...
Embodiment 2
[0046] Example 2: Evaluation of moisturizing agent
[0047] 1. Preparation of moisturizer
[0048] According to the formula shown in the following table 1, each component was weighed respectively:
[0049] The formula of table 1 humectant
[0050]
[0051] Preparation of moisturizing agent 1: Take glycerin, add sodium hyaluronate, stir evenly, add purified water, heat and stir until completely dissolved; then add serine, heat and stir until completely dissolved, cool to room temperature, and obtain.
[0052] Preparation of moisturizing agent 2: Take purified water, add sodium hyaluronate, heat and stir until completely dissolved; then add betaine and serine, heat and stir until completely dissolved, cool to room temperature, and obtain.
[0053] Preparation of moisturizing agent 3: Take purified water, add sodium hyaluronate, heat and stir until completely dissolved; then add sodium pyrrolidone carboxylate and serine, heat and stir until completely dissolved, cool to room...
Embodiment 3
[0059] Embodiment three: evaluation of cream
[0060] 1. Preparation of cream
[0061] According to the formula shown in the following table 3, each component was weighed respectively:
[0062] The formula of table 3 cream
[0063]
[0064]
[0065] Preparation of cream:
[0066] ① Take caprylic / capric triglyceride, grape seed oil, polydimethylsiloxane, cetearyl alcohol cetearyl alcohol, cetearyl glucoside, 2,6-di-tert-butyl p- Cresol, stir and heat to about 100°C to dissolve it completely, keep it warm for 15 minutes, stir and cool down to about 75±2°C, set aside;
[0067] ② Take purified water, add glycerin, allantoin, sodium stearyl glutamate, and disodium EDTA, stir and heat to about 75 ± 2°C, then add the solution prepared in item "①", stir and emulsify for 10 minutes;
[0068] ③Stir and cool down to about 45±2°C, add phenoxyethanol under stirring, continue stirring for 5 minutes, turn on the homogenizer for 5 minutes, stir and cool down to below 38°C, and disch...
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