Use of Parallel Airflow in Producing Adhesive Meltblown Web

Abstract

The accessory airflow parallel to the main drag air was used in the melt blowing process to produce adhesive web, with a low-melting-point polymer (copolyamide) as raw material. It was found that the thus formed web quality was improved, exhibiting narrower fiber diameter and pore size distribution, and more regular pore shape. With the parallel airflow existing, four main melt-blowing parameters including the main drag air velocity, the parallel velocity, the polymer melt output rate and the die-to-collector distance are discussed in terms of their influence on mean fiber diameter and fiber diameter distribution.