Extrusion & Post
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Weak adhesion of PLA to paper/paperboard lamination
Fenómeno do problema
The adhesion between PLA and the paper base of PLA coated paper products is insufficient.
Análise das causas
The wettability of PLA to the paper base is not enough and the adhesion is weak; the surface treatment of the paper base is insufficient.
Solução
Corona or primer treatment of the paper base; increase the PLA coating temperature to improve wettability.
Conclusão principal
The adhesion of PLA paper base lamination is the key to packaging.
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