| 摘要 |
PURPOSE: A method for laminating on both surfaces of a paper substrate using Polylactic Acid films is provided to reduce manufacturing costs and to improve work productivity by consecutively pressing both surfaces of a paper substrate using heat. CONSTITUTION: A method for laminating on both surfaces of a paper substrate using Polylactic Acid films is as follows. First and second PLA films(F1,F2) and a heated paper substrate(P) are conveyed in a longitudinal direction. The first and second PLA films are line-contacted and pressed to a thermal fusion line. The first and second PLA films are thermally pressed and are thermally fused partially in the contact lines of the paper substrate. The paper substrate and the first and second PLA films are consecutively conveyed through the thermal fusion line.
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