Pile article

Claim 2

A PILE ARTICLE COMPRISING AN ADHESIVE LAYER AND UPSTANDING THEREFROM, AT AN AVERAGE ANGLE OF BETWEEN 45* AND 90*, CRIMPED SYNTHETIC ORGANIC POLYMERIC FILAMENTARY STRUCTURES ALIGNED GENERALLY IN THE SAME DIRECTION AND HAVING AN AVERAGE DENIER PER FILAMENT D OF 2 TO 25, THE PORTIONS OF SAID FILAMENTARY STRUCTURES WITHIN THE ADHESIIVE LAYER PENETRATING THE SURFACE THEREOF IN RANDOMLY SPACED APART FASHION AND BEING ANCHORED THEREBY, THE PORTIONS OF SAID FILAMENTARY STRUCTURES WITHOUT THE ADHESIVE LAYER BEING CHARACTERIZED BY: (A) FORMING A HIGHLY POROUS PILE HAVING A PILE FIBER DENSITY D BETWEEN ABOUT 0.5 AND 3.2 LBS./FT.3$, HAVING A NUMBER OF FILAMENTARY STRUCTURES N BETWEEN ABOUT 5,000 AND 16,000 PER SQUARE INCH AND HAVING A FACE DEFINED BY THE ENDS OF THE FILAMENTARY STRUCTURES, (B) BEING INTERMINGLED IN NON-FIXED TOUCHING ENGAGEMENT TO PROVIDE A K VALUE OF BETWEEN ABOUT 1:3 AND 3.0, WHEREIN K IS THE RATIO OF THE AVERAGE EXTENDED LENGTH OF THE FILAMENTARY STRUCTURES TO THE HEIGHT OF THE SAID PILE, AND (C) BEING UNIFORMLY SPACED SUCH THAT THE STANDARD DEVIATION OF THE NUMBER OF FILAMENTARY STRUCTURES PER SAMPLE AREA IN ANY GIVEN PLANE PARALLEL TO SAID ADHESIVE LAYER IS LESS THAN 0.75 TIMES THE AVERAGE NUMBER OF FILAMENTARY STRUCTURES PER SAMPLE AREA IN THAT PLANE, WHEREIN THE SAMPLE AREA IS OF SUCH SIZE TO CONTAIN AN AVERAGE OF 5 TO 25 FILAMENTARY STRUCTURES, WITH (D) THE PROVISO THAT SAID PILE FIBER DENSITY BEARS SUCH RELATION TO K AND D THAT K IS AT LEAST