As the core material of medical masks, melt-blown nonwoven fabrics directly affect the protective effect of masks. There are many factors that affect meltblown fabric filtration efficiency, such as fiber linear density, fiber web structure, thickness and density.
However, as an air filter material for a mask, if the material is
Melt-blown cloth is a melt-blown nonwoven cloth formed by drafting the polymer melt trickle extruded from the die spinneret orifice with high-speed hot air flow, thereby forming superfine fibers and collecting the superfine fibers on a screen or roller, and bonding the superfine fibers by itself at the same time. The melt-blown cloth mainly uses polypropylene as the main raw material, and the fiber diameter can reach 1-5 microns, thus achieving the particle blocking effect. How should foreign importers carry out meltblown
Under the influence of the new crown pneumonia, the global supply of masks is in short supply, and meltblown cloth is also rising. What are the meltblown cloth quality influencing factors as the core material of the mask? Today, through the relevant process of meltblown cloth, the five major factors affecting the quality of meltblown cloth will be introduced in detail.
MFI is the melt flow index, or melt
Meltblown fabric technology has developed rapidly, especially in recent years. With the rapid development of industry and the strengthening of environmental protection, application of meltblown fabric has become more and more extensive. The characteristics of ultra-fine fibers have been found and widely used in many industrial and civil fields. Because the fibers produced by melt-blown technology are very fine, and melt-blown fabrics have large surface gaps and small voids, its application characteristics such as filterability, shielding, thermal insulation and oil absorption are
Yangzhong City, Jiangsu Province of China, a small sandbar in the Yangtze River. The once peaceful island suddenly became the “hometown of meltblown fabric”, which was unexpected to the outside world. The market is keen, optimizing the allocation of resources and improving the capacity of meltblown fabric. However,the epidemic situation is like a magnifying glass, revealing that huge benefits have driven chaos in the industrial chain, such as disorderly production and soaring prices. In particular, inferior goods are abundant and the
