Electret Masterbatch for mask meltblown fabric


The purpose of electret is to make the static electricity stored in the meltblown layer of the mask, which can absorb positively charged dust, bacteria, viruses, aerosols and other harmful substances in the air thus improving the filtration efficiency of the meltblown layer in the mask. Javachem®EF-MB is a high-performance electret masterbatch based on high-melting index meltblown PP material, with Javachem®SF fluorosilicon polymer dispersed into PP carrier resin. It is a necessary functional material for manufacturing special meltblown non-woven fabric for masks.

Javachem®EF-MB can increase the density and depth of the charge trapping energy well in the meltblown non-woven fabric with less addition,  effectively release negative ions and store charges to improve the comprehensive filtration efficiency and heat loss resistance of the meltblown non-woven fabric, and reduce the resistance of non-woven products and improve the filtration efficiency of non-woven products at the same fiber fineness and gram weight.


Benefits of Javachem®EF-MB


  • Reduce die coking and prolong cleaning cycle of spinneret

  • Improve the charge storage density and filtration efficiency of meltblown non-woven fabric

  • No need to adjust the meltblown process, and meet the needs of customers' newly launched meltblown lines for electret functions

  • High fluidity and spinnability, long-term charge storage

  • No influence on the normal cleaning cycle and service life of spinneret

  • More than 95% of filtration efficiency at 1-3%, greatly prolonging the effective storage life and use efficiency of the mask

Filter Experiment of Javachem®EF-MB 

Test equipment: GB-KF30010 Face Mask Particulate Filtration Efficiency Tester

Test conditions: particles used in filter experiment: 0.3 μm NaCl fog

Flow: 85L / min

Test conditions: normal temperature


Javachem®EF-MB Test






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