Tufted carpet including polyethyleneterephthalate bulked continuous filament

Abstract

A monofilament of a polyethylene terephthalate bulked continuous filament (BCF) has elongation of 5% or more at an initial stress of 1.0 g/d, elongation of 25 to 35% at a medium-term stress of 3.0 g/d, tensile strength of .0 to 6.0g/d, and elongation of 40 to 60%.

1 . A tufted carpet for automobiles, the turfed carpet comprising:
 a pile layer including a polyethylene terephthalate bulked processing continuous filament (BCF) prepared by melt spinning a polyethylene terephthalate (PET) polymer; and   at least one backing layer,   wherein a monofilament of the BCF has elongation of 5% or more at an initial stress of 1.0 g/d, elongation of 25 to 35% at a medium-term stress of 3.0 g/d, tensile strength of 0.0 to 6.0 g/d, and elongation of 40 to 60%.   
     
     
         2 . The tufted carpet of  claim 1 , wherein a content of a low molecular substance of 3 to 7 oligomers, which has not formed a polymer in the polyethylene terephthalate polymer, is 1.0 wt % or less, and a content of the low molecular substance in the filament is 1.3 wt % or less. 
     
     
         3 . The tufted carpet of  claim 1 , wherein the polyethylene terephthalate polymer has a weight average molecular weight of 50,000 to 70,000. 
     
     
         4 . The tufted carpet of  claim 1 , wherein the continuous filament is formed of multifilaments of 50 to 300 aggregates of monofilaments. 
     
     
         5 . The tufted carpet of  claim 1 , wherein a total fineness of the bulked processing continuous filament is 700 to 1500 denier. 
     
     
         6 . The tufted carpet of  claim 1 , wherein a wear resistance level according to MS343-15 standard is grade 3 or more.