Mask knowledge revealed

The innovative power of health protection

Yancheng Ruize color masterbatch Co., LTD

In daily life, masks have become the most familiar protective equipment for us. Whether it's dealing with flu season, traveling in smoggy weather, or experiencing special public health events, masks are silently guarding our health. But do you really know masks?

How does it work? How to choose the right mask for different scenes? Today, let's delve into the mystery of masks.

Types and choices of masks

We all know there isn't just one type of mask. Common masks on the market include medical surgical masks, N95 masks, KN95 masks, and ordinary medical masks.

Medical surgical masks are usually composed of a three-layer structure, the outer layer is waterproof, the middle layer is filtered, and the inner layer is hygroscopic, which can effectively block droplets and large particles.

The N95 mask uses a more efficient filter material that can filter out more than 95 percent of non-oily particles, including viruses and bacteria.

KN95 masks are the Chinese standard and have similar protective effects to N95 masks. Ordinary medical masks are mainly used in general medical environments, and the protective effect is relatively low.

The protective principle of masks

The mask seems simple, but its filtering principle contains the university question. Taking common medical surgical masks and N95 masks as examples, they filter airborne particles mainly through a variety of mechanisms such as mechanical barrier, inertial collision, diffusion deposition and electrostatic adsorption.

01 Protective principle of masks

Mechanical barrier is a more basic way, the fiber structure of the mask is like a fine net, which can directly intercept larger particles, such as dust, pollen and so on. These fibers interweave with each other, creating countless tiny pores that allow air to pass through while keeping out larger particles.

Inertial collisions target particles with a certain velocity and mass. When the air containing particulate matter flows through the mask fiber, the larger mass of particulate matter cannot follow the air flow smoothly around the fiber due to inertia, so as to impact and adhere to the fiber. For example, droplets from a cough or sneeze, in which larger particles are intercepted by the mask due to inertial collision.

Diffusion deposition refers to the random Brownian motion of extremely small particles, such as viral aerosols, in the air. In this process, these tiny particles come into contact with the mask fibers and are deposited, achieving a filtering effect.

Electrostatic adsorption is one of the key technologies of modern high performance masks. The filter material in some masks is specially treated to carry an electrostatic charge. The presence of static electricity greatly enhances the adsorption capacity of the mask for small particles, even particles smaller than the fiber gap can be firmly adsorbed by static electricity. This electrostatic adsorption not only improves the filtration efficiency, but also reduces respiratory resistance, making the wearer feel more comfortable.

02 Ruize non-woven electret masterbatch

The melt-blown cloth has become the key to mask protection because of its extremely fine fiber and the application of electrostatic electret technology. The charge on the melt-blown non-woven fabric will be lost over time, resulting in a reduction in the filtration efficiency of the non-woven fabric product, which is commonly referred to as the filtration efficiency decline.

The addition of Ruize non-woven electret masterbatch to melt-blown non-woven products can increase the density and depth of charge trapping energy trap in melt-blown non-woven products, so as to improve the filter effect and heat loss resistance of the product. So that the production of melt-blown non-woven products, in the same fiber fineness of the same gram weight of the case, not only reduce the resistance of non-woven products and improve the filter effect of non-woven products.

The choice of masks in different scenarios

The risks and needs we face vary in different scenarios, so choosing the right mask is crucial.

1. Medical Settings Medical Settings are one of the places where the requirements for masks are particularly strict. Health care workers need to wear medical protective masks, such as N95 or higher grade masks, when performing surgery, handling infected patients and other operations. Such masks can not only effectively filter particles in the air, but also have good water resistance and barrier property, prevent the penetration of pollutants such as blood and body fluids, and protect medical workers from the risk of infection.

2. Crowded places In the high influenza season, ordinary people in crowded places, such as shopping malls, stations, hospitals, etc., wear medical surgical masks to provide basic protection. Surgical masks can filter out most of the droplets and bacteria, effectively reducing the chance of getting infected with the flu virus. At the same time, it has good air permeability and is suitable for long-term wear.

3. Special working environment For people engaged in industrial production, construction and other occupations, may be exposed to dust, chemicals and other harmful particles. At this time, it is necessary to choose the appropriate industrial protective mask according to the specific working environment. For example, KN95, KP95 and other standard masks can provide efficient filtration protection against different types of particles to ensure the respiratory health of workers.

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