The wave of electrospinning nanofiber membrane is applied to the anti-fog mask filter PM2.5 has not yet retreated and usher in a new wave of trend, combined with PLA electrospinning nanofiber membrane cotton gauze antibacterial dust mask!
At first, masks were only a self-protection tool for the relevant professional workers. Nowadays, with the continuous deterioration of the work or living environment, for example, on June 28, 2013, Beijing was heavily polluted, and the air in most areas was at six levels of serious pollution, people's awareness of environmental protection and health is constantly strengthening, and masks have become almost a necessity.
The gauze masks used by medical staff earlier were 12cm*12cm and 8-12 layers. Due to the natural comfort of cotton fibers, the filter material of the gauze mask was selected as cotton yarn, and the cotton gauze was good in hydrophilicity, and the exhaled moisture would gather in the fiber, the more the number of gauze layers, the greater the respiratory resistance. If you wear 8-12 layers of gauze mask for a long time, the wearer will feel difficulty breathing.
In the current technology, in order to obtain more antibacterial properties of the mask, a method of adding an antibacterial finishing agent is mostly employed. For example, the broad-spectrum quick-acting nano antibacterial particles are consolidated on the medical absorbent cotton yarn to achieve an antibacterial effect. Or the intermediate layer of the mask is an immersion liquid sheet obtained by impregnating a hygroscopic cloth or a non-woven fabric with a non-volatile or low-volatile liquid such as a suitable deodorant, a bactericidal-antibacterial agent, or an antiviral agent. In another example, a multi-layer mask is obtained by adding silver ions and zeolite as a sterile antibacterial agent to achieve an antibacterial effect.
Considering the health, some antibacterial agents in the above technical solutions are not suitable for long-term use. And therefore, a technical solution for applying bamboo fibers and hemp fibers having natural antibacterial effects to antibacterial masks has also emerged. If the hemp fiber gauze layer or the hemp fiber non-woven layer is used, the mask body has a layer number of 3-40 layers, and although the mask has a good antibacterial effect, the filtering effect on the dust particles in the air is poor.
PLA electrospinning nanofiber membrane cotton gauze antibacterial dust mask is a kind of antibacterial dustproof based on pure cotton gauze which can be used for both antibacterial and high efficiency filtration of dust and low production cost, good gas permeability and completely biodegradable.
PLA electrospinning nanofiber membrane cotton gauze antibacterial dust mask consists of the mask body and the ties on both sides of the main body. The utility model is characterized in that the mask body is composed of pure cotton gauze, PLA electrospinning nanofiber film, ramie needle-punched non-woven fabric and PLA melt-blown non-woven fabric, which are sequentially laminated from the inside to the outside in the order described and ultrasonically bonded, where in the pure cotton gauze is 1-2 layers.
The innermost layer of the mask is made of pure cotton gauze, which not only maintains the affinity of the traditional cotton mask and the skin, but also adopts 1 or 2 layers of pure cotton gauze, which is very breathable. The PLA electrospinning nanofiber membrane is used as the second intermediate layer of the mask adjacent to the pure cotton gauze, which can play a good filtering effect and has no influence on the gas permeability. The PLA fiber is natural and environmentally friendly, biodegradable and biocompatible. It does not cause pollution to the environment, and it has a wide range of sources and low prices.
The ramie needle-punched nonwoven fabric is used as the first intermediate layer of the mask, and the ramie fiber has a natural bacteriostatic action to inhibit and kill bacteria. The needle-punching process can make the ramie non-woven fabric fluffy, not only the gas permeability is good, but also the pores between the fibers can adsorb more bacteria and impurities. And the hemp fiber processing technology is mature, the hemp fiber structure in the processing process is not damaged, and the natural antibacterial sterilization characteristics of the hemp fiber are still maintained. The outermost layer of the mask adopts PLA melt-blown non-woven fabric, which not only biodegradable, but also has the characteristics of poor water absorption and good gas permeability. It can prevent the infection on the mask during the operation of the mask in the medical and health industry. Epidemic body fluids may be infiltrated. The layer structure mask of the present invention has the property of guiding the unidirectional transport of moisture from the inside to the outside, and can maintain the dryness and comfort inside the mask and prevent the growth of bacteria. It has the outstanding advantages of antibacterial and high efficiency filter dust, low production cost, good gas permeability and complete biodegradability.
This type of PLA electrospinning nanofiber film cotton gauze antibacterial dust mask will be used in the medical world, it will be the new favourite of the industry!