Web fabric

Abstract

A web fabric includes a plurality of first threads and a plurality of second threads. Each of the first threads is made of at least one TPU (Thermoplastic polyurethane) filament. The first threads are arranged at intervals. The second threads are arranged at intervals and ties around respective one of the first threads so that the web fabric is formed with a plurality of through holes. Each of the second threads is knotted with the first threads to form a plurality of first knots. Each of the second threads is knotted itself between any two adjacent ones of the first threads to form at least one second knot. The first threads are separated apart by the at least one second knot to prevent the first threads from touching each other.

What is claimed is: 
     
         1 . A web fabric, including a plurality of first threads and a plurality of second threads, each said first thread being made of at least one TPU (Thermoplastic polyurethane) filament, the first threads being arranged at intervals, the second threads being arranged at intervals and tying around respective one of the first threads so that the web fabric is formed with a plurality of through holes, each of the second threads being knotted with the first threads to form a plurality of first knots, each of the second threads is knotted itself between any two adjacent ones of the first threads to form at least one second knot, the first threads being separated apart by the at least one second knot to prevent the first threads from touching each other;
 wherein each of the second threads has an outer diameter smaller than one fifth an outer diameter of each of the first threads;   wherein the first threads are integrally connected to be a thread extending back and forth, and each said first thread extends straightly through a plurality of said first knots.   
     
     
         2 . The web fabric of  claim 1 , wherein each of the second threads is made of artificial sinew or TPU filament. 
     
     
         3 . The web fabric of  claim 1 , wherein each of the first threads is compressed by the second threads at the first knots to have an outer diameter which is 0.9-1.0 time an original outer diameter of each of the first threads. 
     
     
         4 . The web fabric of  claim 1 , wherein a distance between any two adjacent ones of the first threads is 1-5 times an outer diameter of each of the first threads, a distance between any two adjacent ones of the second threads is 2-5 times an outer diameter of each of the first threads. 
     
     
         5 . The web fabric of  claim 1 , wherein each of the first threads is a part of a monofilament thread made up of a single filament extending back and forth.