Adhesive & Coating Failures
Label Adhesion Failure: A label applied to the surface of a polycarbonate compact disc (CD) showed poor adhesion in some areas. The label and CD surface were analyzed by energy dispersive x-ray (EDX) microanalysis, optical microscopy (OPMIC) and Fourier transform infrared microspectroscopy (FTIRM) for contaminants or chemical differences which might account for poor adhesion properties. Based on this analysis, Alliance Technologies determined that a primer was not uniformly applied to the CD surface.
Ink Printing Uniformity Failure: Samples of a company’s laminated product (A) and their competitor’s laminated product (B) were submitted to Alliance to investigate poor ink adhesion on the “A” sample. Using high magnifications to view both samples, some differences in surface morphology were noted as possible causes for poor adhesion on the A sample.