Modeling the Bending Stiffness of Point Bonded Nonwoven Fabrics

A simple method for predicting the bending behavior of point bonded nonwoven fabrics has been developed. Proven theories found in the literature have been combined using elementary geometry and probability to produce a method to calculate the bend ing rigidity of nonwoven fabrics based on the properties of the constituent fibers and the fabric's construction. Pattern-bonded polypropylene and polyester fabrics, both spunbonded and bonded carded web, have been analyzed. The theoretical results agree with experimental values of bending stiffness.