公开(公告)号：US3837980A

公开(公告)日：1974-09-24

申请号：US36825073

申请日：1973-06-08

Applicant: TORAY INDUSTRIES

Inventor： NISHIMURA T ,  NAKAYAMA Y ,  YAMASHITA S

IPC: D03D27/00 ,  A41G1/00 ,  A47G27/02 ,  D04H11/00 ,  D05C17/02 ,  E01C13/08 ,  A47G35/00

CPC classification number: D04H11/00 ,  A41G1/009 ,  D01D5/253 ,  E01C13/08 ,  Y10T428/23957 ,  Y10T428/23993

Abstract: SYNTHETIC GRASS PRODUCTIONS OF IMPROVED QUALITY ARE MADE OF THERMOPLASTIC MONOFILAMENT RIBBONS HAVING A CROSS SECTION IN WHICH THE RIBBONS ARE THICKEST AT THE CENTER, AND TAPER OFF TOWARD BOTH EDGES AND WHICH HAVE A STEM-LIKE PROJECTION ABOUT ITS CENTER ON BOTH SIDES OF THE TAPERED PORTION. THE SYNTHETIC GRASS PRODUCTS ARE PRODUCED BY CONVENTIONAL TUFTING, WEAVING, KNITTING, OR FLOCK-COATING TECHNIQUES AND HAVE RESILIENT SYNTHETIC FOAM ATTACHED TO THE BACKING ON THE SIDE OPPOSITE TO THE EXTENDING RIBBONS.