Artificial leather for vehicle interior material and vehicle interior material comprising same

Abstract

An artificial leather for a vehicle interior material includes: a fabric layer comprising a fiber layer; a skin layer disposed on the fabric layer and comprising a thermoplastic polyolefin (TPO); and a surface treatment layer disposed on the skin layer.

What is claimed is: 
     
         1 . An artificial leather for a vehicle interior material, the artificial leather comprising:
 a fabric layer comprising a fiber layer;   a skin layer disposed on the fabric layer and comprising a thermoplastic polyolefin (TPO); and   a surface treatment layer disposed on the skin layer.   
     
     
         2 . The artificial leather of  claim 1 , wherein the thermoplastic polyolefin (TPO) comprises, based on a total of 100 wt % of TPO, 50 to 80 wt % of a thermoplastic vulcanizate (TPV) and 20 to 50 wt % of an olefin resin. 
     
     
         3 . The artificial leather of  claim 2 , wherein the thermoplastic vulcanizate (TPV) comprises, based on a total of 100 wt % of TPV, 30 to 70 wt % of a non-crosslinked TPV resin and 40 to 80 wt % of a partially crosslinked or crosslinked TPV resin. 
     
     
         4 . The artificial leather of  claim 2 , wherein the olefin resin comprises at least one selected from the group consisting of polypropylene (PP), polyethylene (PE), and mixtures thereof. 
     
     
         5 . The artificial leather of  claim 1 , wherein a thickness of the skin layer is 0.1 to 0.8 mm. 
     
     
         6 . The artificial leather of  claim 1 , wherein the surface treatment layer is formed through a treatment using:
 a mixture of a primer comprising chlorinated polyolefin and polyurethane; and   a top-coating agent comprising polyurethane.   
     
     
         7 . The artificial leather of  claim 6 , wherein the primer comprises, based on a total of 100 wt %, of the primer, 1 to 10 wt % of chlorinated polyolefin, 10 to 30 wt, of polyurethane, and 60 to 85 wt. % of a solvent. 
     
     
         8 . The artificial leather of  claim 1 , wherein a thickness of the fabric layer is 0.6 to 1.6 mm. 
     
     
         9 . The artificial leather of  claim 1 , wherein the artificial leather has a static load elongation of 30 to 130% and an elongation at break of 120 to 180%. 
     
     
         10 . A vehicle interior material, comprising:
 an artificial leather comprising:
 a fabric layer comprising a fiber layer, 
 a skin layer disposed on the fabric layer and comprising a thermoplastic polyolefin (TPO), and 
 a surface treatment layer disposed on the skin layer; 
   a cushion layer located under the artificial leather and configured to absorb shocks; and   a substrate adhered to the cushion layer using an adhesive,   wherein the adhesive is a rubber-based adhesive including a crosslinking agent.   
     
     
         11 . The vehicle interior material of  claim 10 , further comprising a coating layer comprising polyethylene (PE) between the cushion layer and the substrate. 
     
     
         12 . The vehicle interior material of  claim 10 , wherein the crosslinking agent comprises a silane-based crosslinking agent. 
     
     
         13 . The vehicle interior material of  claim 10 , wherein the rubber-based adhesive comprises at least one selected from a group consisting of a chloroprene-based rubber adhesive, a polyurethane adhesive, and mixtures thereof. 
     
     
         14 . The vehicle interior material of  claim 10 , wherein the substrate comprises at least one selected from a group consisting of polypropylene (PP) plastics, polycarbonate (PC)/ABS (acrylonitrile butadiene styrene) plastics, and mixtures thereof.