With the rapid increase of confirmed cases worldwide, the demand for protective products is continually increasing, and masks are one of the scarce resources.
The "first line of defense" masks for virus prevention is mainly medical surgical masks and N95 masks, and protective masks are generally made of non-woven materials.
Non-woven fabric is composed of oriented or random short fibers or filaments, which are reinforced by mechanical, thermal bonding, or chemical methods.
It is particularly prominent in the application of medical and sanitary products: disposable surgical gowns, masks (disposable nursing masks, medical-surgical masks), patient sheets, drapes, liquid absorption pads, etc.
Medical-surgical masks have three layers: two single layers spun-bond non-woven fabric, and one melt-blown non-woven fabric layer.
Medical masks need to comply with the standards of medical surgical masks YY0469-2011, and its critical technical indicators include filtration efficiency, bacterial filtration rate, and respiratory resistance.
The filtration efficiency of bacteria means that the filtration efficiency of Staphylococcus aureus aerosol under the prescribed conditions is not less than 95%, which is the source of the N95 concept. N95 is a grade of protective mask that complies with the National Institute of Occupational Safety and Health (NIOSH) standards.
The N95 mask is not a medical product, but it uses more protective material layers, and the filtering effect is greater than 95%. It can filter and block viruses and germs.
Colloidal silver has an excellent antibacterial effect
The fiber diameter and pores in the fiber layer of the materials will affect the effect of masks blocking particulate matter, so the filtering energy efficiency of the core layer filter material is the most important.
The core filter material of the mask can filter and intercept fine dust and aerosol particles, thereby avoiding pathogenic microorganisms (such as viruses and bacteria) or other harmful factors attached to the dust and aerosol particles, Exposure to the respiratory tract dramatically reduces the risk of infection or harm.
There are many mask filter materials on the market: the most commonly used melt-blown filter materials, nanomaterials, graphene filters, PTFE (polytetrafluoroethylene) fibers and membrane filters, activated carbon, electrostatic cotton, etc.
Masks using filter materials such as activated carbon, electrostatic cotton, PTFE (polytetrafluoroethylene) fibers, and membrane filters are not recommended for use in epidemics.
Want to produce masks whose filtration efficiency and bacterial filtration rate mush reach the standard, or the fiber itself has the antibacterial function.
Nanomaterials are the best material for producing the antibacterial masks; its stable physical and chemical properties are beneficial in inhibiting pathogenic bacteria and can help prevent respiratory disease transmission.
Silver ions used in medical supplies, textiles, plastic products, building materials, ceramics, and other fields for a long time; Used to prevent the breeding and accumulation of germs on the surface of articles and protect people's life and health.
Masks containing colloidal silver antibacterial filter materials can effectively inhibit and filter pathogenic bacteria. They can also block some giant particle viruses. Many brands have applied silver ion antibacterial materials to core filter materials for masks, used for preventing epidemics such as influenza and H7N9.
The filter material made with the colloidal silver solution has an antibacterial rate of ≥96%. Then it can be worn for more than 48 hours. It can inhibit pathogenic bacteria such as E. coli, Staphylococcus aureus, and Streptococcus.
For manufacturers who want to improve the antibacterial energy efficiency of masks, please contact Yongrui Biotechnology. We will supply a high-quality colloidal silver solution for you.