The invention provides an antibacterial and antiviral
mask and a preparation method thereof. The antibacterial and antiviral
mask sequentially comprises a barrier protective layer, an antibacterial and antiviral layer, a filter layer and a
skin-friendly layer from outside to inside. Wherein the antibacterial and antiviral layer is a melt-blown non-
woven fabric modified by nano cuprous
oxide, and the nano cuprous
oxide is loaded and fixed on a
fiber surface layer of the melt-blown non-
woven fabric through an in-situ reaction. The method specifically comprises the following steps: pretreating a melt-blown non-
woven fabric, sequentially padding the pretreated melt-blown non-woven fabric in an alkaline solution, a
copper source solution and a reduction solution, controlling the liquid carrying rate of the pretreated melt-blown non-woven fabric, finally putting the pretreated melt-blown non-woven fabric in a
solvent reaction medium, and carrying out in-situ reaction in a high-temperature environment to obtain the nano-cuprous
oxide. According to the antibacterial and antiviral
mask, through the dual functions of the blocking protective layer and the antibacterial and antiviral layer, the effects of blocking germs, inhibiting
bacteria and killing
bacteria can be achieved in a short time, so that the mask has the long-acting antibacterial and antiviral functions; and the mask is good in washability, the
antibacterial effect is not changed after the mask is continuously washed for 50 times, the practicability is high, and the requirements of the market on the mask function aspect are greatly met.