Strategies for economical alternatives for wax replacement in packaging

We report studies of the incorporation or blending of various pigments for waterproofing liner-board, along with changes in relevant physical properties. We observed the impregnation of polymer/pigment blends to increase strength properties substantially, as explained by the increase of modulus in a composite matrix. We also made observations of surface flame treatment and curtain coating, which can lower the coating basis weight required to attain a required level of water resistance. We also looked at the potential for electrospinning of nanofiber membranes to supplant conventional coating technologies.