Preparation method of nutritious keratin mask
A keratin and mask technology, applied in the fields of cosmetics and biomedical engineering, can solve problems such as easy loss of activity, and achieve the effects of improving binding rate, good stability and high biological activity
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[0028] A preparation method of nutritional keratin facial mask, is characterized in that, comprises the steps:
[0029] S1: A certain amount of regenerated human hair keratin is completely dissolved in 98% (v / v) formic acid solution, and stirred evenly to obtain a spinning solution;
[0030] S2: Electrospinning is carried out by using a spinning solution to obtain a keratin nanofiber film;
[0031] S3: washing the keratin nanofiber membrane with a commercially available phosphate buffer solution to a pH value of 7.4, drying it and then activating it with a plasma processor;
[0032] S4: Soak the nanofibrous membrane obtained in step 3 in phosphate buffer solution added with skin nutrient factors for negative pressure flash explosion, and then perform grafting reaction;
[0033] S5: Centrifuge and freeze-dry the nanofibrous membrane that has completed the grafting reaction to obtain a nutritional keratin mask.
[0034] In the above-mentioned preparation method of the present ...
Embodiment 1
[0041] 1. Completely dissolve 2 g of regenerated human hair keratin in 100 ml of 98% (v / v) formic acid solution, stir evenly to obtain spinning solution;
[0042] 2. Electrospinning is carried out with the spinning solution, the syringe used is 10ml, the needle is flat, No. 7 needle; the electrospinning conditions are: voltage 15KV, distance 8cm, injection rate 0.5ml / h, temperature 30°C obtaining a keratin nanofiber film;
[0043] 3. Wash the keratin nanofiber membrane with a commercially available phosphate buffer solution (pH7.4) until the pH is 7.4, and after drying at 37°C for 4 hours, it is activated by a plasma processor. The conditions of the plasma treatment are: the gas uses oxygen, and the processing power The power is 280W, the pressure is 55Pa, and the processing time is 15min;
[0044] 4. Soak the nanofibrous membrane obtained in step 3 in a mixture containing 200g / L tremella polysaccharide, 80g / L sodium alginate, 2g / L rose essential oil, 2g / L lemon essential oil, ...
Embodiment 2
[0047] 1. Completely dissolve 1 g of regenerated human hair keratin in 100 ml of 98% (v / v) formic acid solution, stir evenly, and obtain spinning solution;
[0048] 2. Electrospinning is carried out with the spinning solution, the syringe used is 10ml, the needle is flat, No. 7 needle; the electrospinning conditions are: voltage 12KV, distance 7cm, injection rate 0.3ml / h, temperature 25°C obtaining a keratin nanofiber film;
[0049] 3. Wash the keratin nanofiber membrane with a commercially available phosphate buffer solution (pH7.4) until the pH is 7.4, and after drying at 45°C for 2 hours, it is activated by a plasma processor. The conditions of the plasma treatment are: nitrogen gas is used for the gas, and the processing power is 250W, pressure 50Pa, processing time 10min;
[0050] 4. Soak the nanofibers obtained in step 3 in a mixture containing 100g / L tremella polysaccharide, 50g / L sodium alginate, 1g / L rose essential oil, 1g / L lemon essential oil, 1g / L vitamin E, 5g / L ...
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