| Presently, there are several types of surface modification techniques used in industry. Corona treatment, was employed in the present study because of its availability and ease of treatment, as compared to other techniques such as chemical treatment. The effect of surface modification on the printability of polyolefin films was evaluated after contact angle measurements were performed and surface free energy values had been determined, respectively. A modified application of the SPEC*SCAN 2000 computer software was employed for estimation of the area percent of printed surface peeled from the printed film. Electron Spectroscopy for Chemical Analysis (ESCA) was performed to characterize the surface composition of film samples. The results obtained were not conclusive. However, the results of surface free energy estimations proved satisfactory, as anticipated. The higher the corona treatment level, the higher the surface free energy value, as well as the better adhesion of the ink to the film. |
