Laser cutting and engraving paper
We can laser cut various papers and paper thickness.
Cardboard can be laser cut and engraved.
We have established standard settings for different paper thickness (g/sm) ranging from 90g/sm to 700 g/sm. We also run quick test or your supply to establish an optimum setting for your material. Usually cut at as fast a speed as possible with just the right power to cut through consistently. Since there are so many different type of papers and cards all ranging in G/SM they react slightly differently to the laser.Top surface
Certain chemicals and dyes in papers produce more fumes than others which can cause heat / scorch marks on the top surface. There is no exact science to it but as a benchmark the thinner the paper being cut the less marks will occur. Some papers can be cut with little or no markings at all. The darker the tone of your paper or card the less visible burn marks will be. Other papers release fumes which can mark the surface with a yellow tinge, particularly on lighter tones. From our experience recycled stocks tend to produce a higher level of marks.Bottom surface
Laser bed marks will be evident on the reverse side of the paper where the laser comes in contact with the honeycomb cells. Heat from the laser causes residues on the honeycomb to transfer back onto the material. We try to keep this to an absolute minimum using a low laser power but unfortunately sometimes it is unpreventable.
Cut widths & Kerf
As a benchmark, we recommend that minimum cut widths be no smaller than the corresponding thickness of the material and no thinner than 1mm. Any smaller will make your cut outs very fragile.
Just when cutting paper engraving requires testing to establish how certain stocks react to the laser. In most case the laser will engrave and slightly discolour the paper surface producing a very subtle brown / orange marking. On some stocks, the engraving will not mark at all and just appear recessed. We always recommend having a sample made up prior to running a larger batch to determine the best engraved result.