Patent ID: 8128774

Claim:
A process of manufacturing a paperboard comprising the steps of: (a) mixing a predetermined weight percentage of polypropylene and a predetermined weight percentage of polyethylene in a tank; (b) heating the tank to a predetermined temperature for forming an adhesive of the polypropylene and the polyethylene; (c) flowing the adhesive out of the tank to coat on an outer surface of a continuous paperboard member moving thereunder; and (d) moving steadily a continuous textile toward a joining line of a pair of opposite rotating rolls so that the rolls press the textile, the adhesive, and the paperboard member to cause the adhesive to adhere the textile and the paperboard member together to produce the finished paperboard having a textile surface; wherein the predetermined weight percentage of the polypropylene is about 70% to 85%, the predetermined weight percentage of the polyethylene is about 15% to 30%, and the predetermined temperature is in a range of 280° C. to 330° C.