When determining the perfect perforations for your label production job, it is always recommended to start with your printer manufacturer’s guidelines. Many printer manufacturers prefer micro-perforations because they are stronger and won’t significantly reduce the stiffness or stability of the original laminate. Additionally, micro-perforations tend not to create much paper dust.
Beyond manufacturer guidelines, there are several other things to know that can be helpful when it comes to perforations. For example, figuring out how many perforations should be used for your production job, as well as the exact location of the perforations in the design of the label form, is important.
Additionally, perforations should not be made to go to the edge of the sheet. To ensure perforations stop before the edge, leave a larger tie at the edge. This prevents the perforations (especially at the edge) from breaking when stressed through the printer.
You should also make sure to use sharp, clean tooling to prevent perforations from tenting. Tenting can cause skew and jamming by inducing additional friction. And, dull or dirty tooling can scratch the photoconductor, which will create image issues over time.
When perforating the full laminate, cut the perforations through the face toward the liner. If perforating the liner in a matrix stripped area, cut the perforations through the back of the liner. This keeps any potential tenting recessed below the surface of the label facestock.
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