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.
Get full access to this article
View all access options for this article.
References
1.
ASTM D 1388, Standard Test for Stiffness of Fabric, 361 (reapproved 1975).
2.
Backer, S., and Petterson, D.R., SomePrinciples of NonWoven Fabric, Textile Res. J.30, 704 (1960).
3.
Freeston, W.D. , and Platt, M.M., Mechanics of Elastics Performance of Textile Materials Part VI: Bending Rigidity of Non-woven Fabric, Textile Res. J.35, 48 (1965).
4.
Gillmore, T.F. , Mi, Z.X., and Batra, S.K., The Effect of Point Design and Bond Strength on the Load Deformation of Point Bonded Nonwoven", TAPPI Proc. 87, (1993).
5.
Kanayama, M., and Niwa, M., Bending Properties of Fused Fabric Composite," in "Objective Evaluation of Apparel Fabrics," S. Kawabata , R. Postle, M. Niwa. Eds., Parkville, Australia, 1983.
6.
Lee, S.M., and Argon, A.S., Mechanical Bending of Non-Woven Fabrics, J. Textile Inst.74, 1 (1983).
7.
Takayangi, M. , Imada, K., and Kajiyama, Mechanical Properties and Fine Structure of Drawn Polymers, J. Polym. Sci. C. 15, 263 (1966).
8.
Tayebi, A., Lau, W., and Farrow, R.E., Mechanics of Bending of Nonwoven Fabrics, Nonwoven Technology Technical Symposium, Washington D.C., 7-16, 1977.
