Composite filament textile and composite filament artificial leather manufactured using the same

Abstract

A composite filament artificial leather includes a composite filament textile and an elastomer film. The composite filament textile includes a plurality of composite filaments. One of the composite filaments includes at least one core portion, a sheath portion and at least one gap structure. The sheath portion is disposed around the core portion. The gap structure is between the core portion and the sheath portion. The elastomer film is bonded with the composite filament textile.

What is claimed is: 
     
         1 . A composite filament artificial leather, comprising:
 a composite filament textile including a plurality of composite filaments, wherein one of the composite filaments includes at least one core portion, a sheath portion disposed around the core portion and at least one gap structure between the core portion and the sheath portion; and   an elastomer film bonded with the composite filament textile.   
     
     
         2 . The composite filament artificial leather of  claim 1 , wherein a profile of the gap structure is substantially conformal with a profile of a portion of an outer io surface of the core portion in a cross-sectional view. 
     
     
         3 . The composite filament artificial leather of  claim 1 , wherein the sheath portion contacts a portion of the core portion. 
     
     
         4 . The composite filament artificial leather of  claim 3 , wherein the contact portion of the sheath portion and the core portion surrounds the gap structure. 
     
     
         5 . The composite filament artificial leather of  claim 4 , wherein an area of the contact portion of the sheath portion and the core portion is greater than an area of the gap structure from a side view. 
     
     
         6 . The composite filament artificial leather of  claim 1 , wherein a width of the gap structure gradually decreases from a center to sides in a cross-sectional view. 
     
     
         7 . The composite filament artificial leather of  claim 1 , wherein a maximum width of the gap structure is 0.005 μm to 0.1 μm from a cross-sectional view. 
     
     
         8 . The composite filament artificial leather of  claim 1 , wherein a length of the gap structure is 0.1 μm to 6 μm from a cross-sectional view. 
     
     
         9 . The composite filament artificial leather of  claim 1 , wherein the one of the composite filaments includes a plurality of gap structures, and shapes of the gap structures are different. 
     
     
         10 . The composite filament artificial leather of  claim 1 , wherein the gap structure is in an arc shape from a cross-sectional view. 
     
     
         11 . A composite filament textile, which includes a plurality of composite filaments, wherein one of the composite filaments includes at least one core portion, a sheath portion disposed around the core portion and at least one gap structure between the core portion and the sheath portion. 
     
     
         12 . The composite filament textile of  claim 11 , wherein a profile of the gap structure is substantially conformal with a profile of a portion of an outer surface of the core portion in a cross-sectional view. 
     
     
         13 . The composite filament textile of  claim 11 , wherein the sheath portion contacts a portion of the core portion. 
     
     
         14 . The composite filament textile of  claim 13 , wherein the contact portion of the sheath portion and the core portion surrounds the gap structure. 
     
     
         15 . The composite filament textile of  claim 14 , wherein an area of the contact portion of the sheath portion and the core portion is greater than an area of the gap structure from a side view. 
     
     
         16 . The composite filament textile of  claim 11 , wherein a width of the gap structure gradually decreases from a center to sides in a cross-sectional view. 
     
     
         17 . The composite filament textile of  claim 11 , wherein a maximum width of the gap structure is 0.005 μm to 0.1 μm from a cross-sectional view. 
     
     
         18 . The composite filament textile of  claim 11 , wherein a length of the gap structure is 0.1 μm to 6 μm from a cross-sectional view. 
     
     
         19 . The composite filament textile of  claim 11 , wherein the one of the composite filaments includes a plurality of gap structures, and shapes of the gap structures are different. 
     
     
         20 . The composite filament textile of  claim 11 , wherein the gap structure is in an arc shape from a cross-sectional view.