MULTIVARIABLE STUDIES OF NONWOVEN FABRICS.
TEXTILE RESEARCH INST PRINCETON NJ
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The performance characteristics of nonwoven fabrics have been studied as a function of fiber properties, binder properties and web construction properties. The particular type of nonwoven selected for study was a web of randomlaid base fibers in which randomly place thermoplastic fibers provide the bonds. The responses studied were those related to rupture, elastic and handle aesthetic properties. Fourteen variables were investigated base fiber linear density, base fiber staple length, amount of crimp in base fiber, post-yield extension of base fiber, type of binder, linear density of binder, staple length of binder, binder concentration, mass per unit area of nonwoven, amount of needle-looming, number of laminations per web weight, pressure of bonding, temperature of bonding and time of bonding. The performance characteristics measured as a function of these variables were maximum tenacity at dry and wet conditions, elongation at dry and wet conditions, tear strength, abrasion resistance, elastic modulus at dry and wet conditions, proportional limit at dry and wet conditions, crease recovery, bending length, flexural rigidity, bending modulus, bulk density and air premeability. Author