Composite layer structure, decorated molding article and method for fabricating the same

A method for fabricating a decorated molding article comprising:

• providing a first material to a first screw of a co-extrusion blow molding machine, wherein a first material comprises acrylonitrile butadiene styrene copolymer;
• providing a second material to a second screw of the co-extrusion blow molding machine, wherein the second material comprises poly(methyl methacrylate);
• performing a co-extrusion molding film process, so that the first material and the second material are extruded to form a composite layer structure comprising a first layer and a second layer disposed on the first layer;
• after performing the co-extrusion molding film process, forming a decorative layer on the composite layer structure;
• after forming a decorative layer, performing an in-mold decoration or an out-mold decoration on the composite layer structure, so that the composite layer structure is attached onto an outer surface of a workpiece via an adhesive layer to form the decorated molding article,
• wherein the first material is 70 wt % to 80 wt %, and the second material is 20 wt % to 30 wt %, based on a total weight of the first material and the second material,
• wherein the first layer is consisting essentially of the first material, the second layer is consisting essentially of the second material, a mixed region is included between the first layer and the second layer, and the mixed region is consisting essentially of the first material and the second material,
• wherein the composite layer structure has a thickness of between 0.01 mm and 1 mm,
• wherein the decorative layer is disposed between the composite layer structure and the adhesive layer.