Modified nano bamboo charcoal mask and preparation method thereof
A technology of nano-bamboo charcoal and masks, applied in the field of medical and health care, can solve the problems of insignificant improvement of adsorption function, impact on air permeability, inconvenient use, etc., and achieve excellent deep filtration effect
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Embodiment 1
[0020] The polypropylene melt is sprayed out from the spinneret hole, and then blown into ultra-fine fibers with high-speed hot air, so that they fly to the condensed net curtain, cooled and bonded to form a non-woven fabric, and then discharged through electrodes to make the non-woven fabric Electret, the weight per unit area of the non-woven fabric of the inner cover base material is 25g / ㎡, the weight per unit area of the non-woven fabric of the outer cover base material is 45g / ㎡, and the weight per unit area of the non-woven fabric of the filter layer base material is 60g / ㎡, the polypropylene fiber includes a charge enhancing additive and a hindered amine light stabilizer, and the fiber fineness is 0.05 denier.
[0021] It is obtained by carbonizing moso bamboo, wherein the carbonization adopts staged carbonization: raise the temperature at a rate of 6 °C / min to 250 °C, carbonize for 3 hours, then increase the rate of temperature at 10 °C / min to 400 °C, and then carbo...
Embodiment 2
[0025] The polypropylene melt is sprayed out from the spinneret hole, and then blown into ultra-fine fibers with high-speed hot air, so that they fly to the condensed net curtain, cooled and bonded to form a non-woven fabric, and then discharged through electrodes to make the non-woven fabric Electret, the weight per unit area of the non-woven fabric of the inner cover base material is 20g / ㎡, the weight per unit area of the non-woven fabric of the outer cover base material is 30g / ㎡, and the weight per unit area of the non-woven fabric of the filter layer base material is 40g / ㎡, the polypropylene fiber includes a charge enhancing additive and a hindered amine light stabilizer, and the fiber fineness is 0.02 denier.
[0026] It is obtained by carbonizing moso bamboo, wherein the carbonization adopts staged carbonization: heating up to 250°C at a heating rate of 8°C / min, carbonizing for 3 hours, then rising to 450°C at a heating rate of 12°C / min, and then carbonizing for 2 ...
Embodiment 3
[0030]The polypropylene melt is sprayed out from the spinneret hole, and then blown into ultra-fine fibers with high-speed hot air, so that they fly to the condensed net curtain, cooled and bonded to form a non-woven fabric, and then discharged through electrodes to make the non-woven fabric Electret, the non-woven fabric of the inner cover substrate has a weight per unit area of 23g / ㎡, the non-woven fabric of the outer cover substrate has a weight per unit area of 42g / ㎡, and the non-woven fabric of the filter layer substrate has a weight per unit area of 50g / ㎡, the polypropylene fiber includes a charge enhancing additive and a hindered amine light stabilizer, and the fiber fineness is 0.03 denier.
[0031] It is obtained by carbonizing moso bamboo, wherein the carbonization adopts staged carbonization: raise the temperature to 275°C at a rate of 6°C / min, carbonize for 4 hours, then raise the rate of temperature to 420°C at a rate of 10°C / min, and then carbonize for 3 ho...
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