Effect of Surface Free Energy of Film Laminated TFS
on Content Release Properties
No.23 March 2018 - Special Issue on “Steel Sheet for Can-making”, “Steel Bar and Wire Rod” and “Slag Products”
Effect of Surface Free Energy of Film Laminated TFS on Content Release Properties
YAMANAKA YoichiroKITAGAWA Junichi
Abstract
Using the film with the wide range of surface free energy values, JFE Steel studied the effect of the surface free energy of the material contacting stuffed content on content release properties. It was found that the properties are closely related to the surface free energy of the material and the materials with surface free energy of less than 23 mN/m or more than 44 mN/m, show excellent properties. Content release properties can be expressed as the work of adhesion in water between material and protein. Reduction of the work of adhesion leads to a significant improvement in content release properties. Concerning the simulated contents used in this study, the proteins in those contents are primarily absorbed on the surface of the films, followed by adhering fatty acids and carbohydrates, which results in generation of macroscopic adhesives.
