Process for producing fabrics comprising unidirectionally arranged polymeric tapes

Abstract

A process for producing fabrics containing at least one layer of unidirectionally arranged polymeric tapes with the tapes having at least a core component, the process including forming at least one layer of unidirectionally arranged polymeric tapes in a weaving machine with the polymeric tapes being used as warp yarn and a binding thread being used as weft yarn or with the polymeric tapes being used as weft yarn and the binding thread being used as warp yarn, and subsequently consolidating the at least one layer of unidirectionally arranged polymeric tapes using pressure and heat, wherein a melting temperature of the binding yarns lies below a consolidating temperature, and a melting temperature of the core component of the polymeric tapes lies above the consolidating temperature.

1 . A process for producing fabrics containing at least one layer of unidirectionally arranged polymeric tapes with the tapes including at least a core component, the tapes having a width/height ratio of at least 2, and the tapes having essentially a quadrangular cross section, the process comprising:
 forming the at least one layer of unidirectionally arranged polymeric tapes in a weaving machine with the polymeric tapes being used as warp yarn and a binding thread being used as weft yarn or with the polymeric tapes being used as weft yarn and the binding thread being used as warp yarn; and   subsequently consolidating the at least one layer of unidirectionally arranged polymeric tapes using pressure and heat,   wherein
 a melting temperature of the binding thread lies below a consolidating temperature, and 
 a melting temperature of the core component of the polymeric tapes lies above the consolidating temperature. 
   
     
     
         2 . The process according to  claim 1 , wherein the polymeric tapes are monofilaments. 
     
     
         3 . The process according to  claim 1 , wherein the polymeric tapes are sheath core tapes with a melting temperature of the sheath being below the melting temperature of the core. 
     
     
         4 . The process according to  claim 1 , wherein a tensile strength of the polymeric tapes is at least 200 MPa. 
     
     
         5 . The process according to  claim 1 , wherein at least two layers of unidirectionally arranged polymeric tapes are formed in the weaving machine with the polymeric tapes being used as warp yarn and the binding thread being used as weft yarn or with the polymeric tapes being used as weft yarn and the binding thread being used as warp yarn, the at least two layers of unidirectionally arranged polymeric tapes being stacked on top of each other with the polymeric tapes of adjacent layers being crossplied at an angle, and the stacked layers being consolidated using pressure and heat. 
     
     
         6 . A soft or a hard antiballistic structure comprising fabrics produced by the process according to  claim 1 . 
     
     
         7 . The process according to  claim 2 , wherein a tensile strength of the polymeric tapes is at least 200 MPa. 
     
     
         8 . The process according to  claim 3 , wherein a tensile strength of the polymeric tapes is at least 200 MPa. 
     
     
         9 . The process according to  claim 2 , wherein at least two layers of unidirectionally arranged polymeric tapes are formed in the weaving machine with the polymeric tapes being used as warp yarn and the binding thread being used as weft yarn or with the polymeric tapes being used as weft yarn and the binding thread being used as warp yarn, the at least two layers of unidirectionally arranged polymeric tapes are being stacked on top of each other with the polymeric tapes of adjacent layers being crossplied at an angle, and the stacked layers being consolidated using pressure and heat. 
     
     
         10 . The process according to  claim 3 , wherein at least two layers of unidirectionally arranged polymeric tapes are formed in the weaving machine with the polymeric tapes being used as warp yarn and the binding thread being used as weft yarn or with the polymeric tapes being used as weft yarn and the binding thread being used as warp yarn, the at least two layers of unidirectionally arranged polymeric tapes being stacked on top of each other with the polymeric tapes of adjacent layers being crossplied at an angle, and the stacked layers being consolidated using pressure and heat. 
     
     
         11 . The process according to  claim 4 , wherein at least two layers of unidirectionally arranged polymeric tapes are formed in the weaving machine with the polymeric tapes being used as warp yarn and the binding thread being used as weft yarn or with the polymeric tapes being used as weft yarn and the binding thread being used as warp yarn, the at least two layers of unidirectionally arranged polymeric tapes being stacked on top of each other with the polymeric tapes of adjacent layers being crossplied at an angle, and the stacked layers being consolidated using pressure and heat. 
     
     
         12 . A soft or a hard antiballistic structure comprising fabrics produced by the process according to  claim 2 . 
     
     
         13 . A soft or a hard antiballistic structure comprising fabrics produced by the process according to  claim 3 . 
     
     
         14 . A soft or a hard antiballistic structure comprising fabrics produced by the process according to  claim 4 .