Braille printing technologies
A. using braille embossers
Braille embossers are capable of printing on other materials than paper, e.g. transparent foil or stickers, up to 200 μm thick, or paper of different weight or surface (e.g. one-side laminated) – minimum weight is determined by the requirement for the print’s durability (it is not recommended to use paper of lower weight than 120 g/m2 – the text would tend to disappear after a time); the maximum weight is determined by the capacity of our technology (print on 300 g/m2 paper will be almost illegible due to machine weakness, the same may happen with paper laminated on both sides).
For materials thicker or firmer, we offer a different technology – for plastic or metal, it is ideal to use an approach in which the Braille dots are fitted in the form of round pellets (or beads) into pre-drilled openings in the material (see samples in gallery).
Maximum and minimum print size
Paper need not be only in the A4 format. A Braille embosser is technically capable of printing formats up to A3. Limitations are posed by the maximum number of character to a line (in portrait-oriented A4, that is 31 characters to a line, in landscape-oriented A4 it is 42 characters).
If the material is thicker than normal, the maximum size remains A4. It is possible to produce Braille signs of a smaller size, the limitations being in the minimum size of a Braille character. As for this type of material a different technology than a Braille embosser is used (see above), the minimum thickness is 1.5 mm.