Method of making non-woven fabrics

Claim 1

A METHOD OF MAKING A NON-WOVEN CORE CHARACTRIZED BY HAVING LENGTHWISE AND WIDTHWISE DIMENSIONAL STABILITY AND STRENGTH WHILE HAVING DESIRED DRAPABILITY AND THEREBY BEING ADAPTABLE FOR USE IN MAKING A NON-WOVEN BLANKET FABRIC, SAID METHOD COMPRISING (A) FORMING SHEETS OF HIGHLY PARALLELIZED TEXTILE FIBERS HAVING AN AVERAGE STAPLE LENGTH OF AT LEAST ABOUT 2 1/2 INCHES, (B) ARRANGING A PLURALITY OF SAID SHEETS IN CONTIGUOUS SUPERPOSED LAYERS TO FORM A COMPOSITE CORE WITH MOST OF THE FIBERS IN CERTAIN OF THE LAYERS THEREOF EXTENDING WITHIN 17* OF PARALLEL RELATION TO THE LENGTH OF THE CORE BEING FORMED AND ALSO EXTENDING WITHIN 17* OF RIGHT-ANGULAR RELATION TO MOST OF THE FIBERS IN CERTAIN OTHER OF THE LAYERS, AND (C) COHERENTLY UNITING THE LAYERS OF THE COMPOSITE CORE BY DIVERTING FIBERS THEREOF SUBSTANTIALLY PERPENDICULARLY THROUGH THE LAYERS WITH THE DIVERTED FIBERS BY VIRTUE OF THEIR LENGTH ERMITTING THE AVOIDANCE OF UNDERSIRABLE BOARDINESS WHILE PROVIDING THE REQUISITE COHERENT UNITING OF THE LAYERS, AND WHEREBY THE HIGH PARALLELIZATION AND LENGTH OF THE FIBERS IN THE SHEETS, THE LAYER ARRANGEMENT OF THE SHEETS AND THE DIVERTED FIBERS IMPART THE DESIRED LENGTHWISE AND WIDTHWISE DIMENSIONAL STABILITY AND STRENGTH TO THE CORE.

Claim 2

A METHOD OF MAKING A NON-WOVEN CORE CHARACTRIZED BY HAVING LENGTHWISE AND WIDTHWISE DIMENSIONAL STABILITY AND STRENGTH WHILE HAVING DESIRED DRAPABILITY AND THEREBY BEING ADAPTABLE FOR USE IN MAKING A NON-WOVEN BLANKET FABRIC, SAID METHOD COMPRISING (A) FORMING SHEETS OF HIGHLY PARALLELIZED TEXTILE FIBERS HAVING AN AVERAGE STAPLE LENGTH OF AT LEAST ABOUT 2 1/2 INCHES, (B) ARRANGING A PLURALITY OF SAID SHEETS IN CONTIGUOUS SUPERPOSED LAYERS TO FORM A COMPOSITE CORE WITH MOST OF THE FIBERS IN CERTAIN OF THE LAYERS THEREOF EXTENDING WITHIN 17* OF PARALLEL RELATION TO THE LENGTH OF THE CORE BEING FORMED AND ALSO EXTENDING WITHIN 17* OF RIGHT-ANGULAR RELATION TO MOST OF THE FIBERS IN CERTAIN OTHER OF THE LAYERS, AND (C) COHERENTLY UNITING THE LAYERS OF THE COMPOSITE CORE BY DIVERTING FIBERS THEREOF SUBSTANTIALLY PERPENDICULARLY THROUGH THE LAYERS WITH THE DIVERTED FIBERS BY VIRTUE OF THEIR LENGTH ERMITTING THE AVOIDANCE OF UNDERSIRABLE BOARDINESS WHILE PROVIDING THE REQUISITE COHERENT UNITING OF THE LAYERS, AND WHEREBY THE HIGH PARALLELIZATION AND LENGTH OF THE FIBERS IN THE SHEETS, THE LAYER ARRANGEMENT OF THE SHEETS AND THE DIVERTED FIBERS IMPART THE DESIRED LENGTHWISE AND WIDTHWISE DIMENSIONAL STABILITY AND STRENGTH TO THE CORE.