Abstract: A method of producing a stretch material includes the steps of extruding a thermoplastic film (20); passing the extruded film through a nip of two rolls (30, 35) having first and second roll surfaces, where the first roll surface includes a raised closed shape pattern and the second roll surface is a flat anvil surface; forming a pattern in the film with the rolls, while chilling the film, such that there are thicker and thinner areas in the film, corresponding to the pattern on the first roll surface; and passing the patterned film under tension, by a heated air stream (45), whereby the polymer in the thinner patterned areas is removed, thereby creating a netting material. A bidirectional stretch laminate is produced by bonding a necked nonwoven material (75) to the netting material while the netting material is being stretched (under tension).

Abstract: Fibers that exhibit good elasticity or extensibility and tenacity, and low modulus are prepared from propylene-based copolymers. The propylene-based copolymers comprise at least about 50 weight percent (wt %) of units derived from propylene and at least about 8 wt % of units derived from one or more comonomers other than propylene, e.g., ethylene. Particularly preferred propylene copolymers are characterized as having 13C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the peaks of about equal intensity. In one aspect of the invention, fibers are subjected to stress-induced crystallization by subjecting the fiber to tensile elongation during draw.

Abstract: Fibers that exhibit good elasticity or extensibility and tenacity, and low modulus are prepared from propylene-based copolymers. The propylene-based copolymers comprise at least about 50 weight percent (wt %) of units derived from propylene and at least about 8 wt % of units derived from one or more comonomers other than propylene, e.g., ethylene. Particularly preferred propylene copolymers are characterized as having 13C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the peaks of about equal intensity. In one aspect of the invention, fibers are subjected to stress-induced crystallization by subjecting the fiber to tensile elongation during draw.