Grey, brown or blue are the preferred colours for this purpose. ![]() What are the important factors for printing on the inside of envelopes?Įnvelopes with low grammages are printed on their inside in order to increase opacity. Metapaper envelopes are available with and without window. If you print on envelopes with a window, please keep a distance of approximately 2mm from the window to avoid applying any pressure.įor envelope formats up to C5, the dimensions of the window in Germany are always 45 x 90mm and for the format C4, the dimensions are 55 x 90mm. Moreover, envelopes are not suitable for digital printing, because they are not heat-resistant. You cannot print on envelope windows since they are mainly made of polyethylene (PE). What are the necessary considerations for envelopes with window? Often, it is more practical to finish the printed sheets first and convert them into envelopes afterwards.įor this purpose, please do not forget the following: Always check the exact finishing position with your printing partner in advance to avoid unpleasant surprises at the end. Is it possible to change the finish of the envelopes after printing?įinishing the surface of off-the-shelf envelopes is only possible to a limited extent, for example by using hot foil. And by the way – Metapaper envelopes are made of 120 g/m 2 paper. Off-the shelf envelopes with a grammage between 70 g/m 2 and 150 g/m 2 can be printed subsequently. For digital printing, the format depends on the printer. Sheet-feed offset presses can print on envelopes in the formats C6 to C4, while envelope printers work with the formats C7 to B4. In digital printing, a print run of up to 1,500 provides the best value for money. This is particularly apparent in offset printing. ![]() How many print runs are advisable? Which formats and grammages are required for successful printing?Ī general rule applies: Higher print runs lead to lower unit costs. If you wish to apply a special finish or print a full-bleed envelope with special colours, you need to print on a sheet of paper first and then convert it into an envelope. The HP Indigo technology can currently only print formats from size A4. This distance is around five to seven millimetres.Īt present, not all digital printing methods are suitable for printing on envelopes. the necessary distance to the margin of the envelopes required by the machine. When using a standard printer or a four-colour envelope printer, it is important to observe the gripper margin, e.g. What is possible and what cannot be done? This method is called printing ‘without full bleed’. This method does not work on sheet-fed offset printers because they need a gripper margin to grip the envelopes. ![]() On an envelope printer, full-bleed printing of all pages is possible in two colours. If envelopes are printed with motifs all the way to the margins, this is called “full bleed”. We differentiate between envelopes with and without full-bleed printing. Alternatively, it is also possible to print on sheets of paper and subsequently convert them into envelopes. Printing with a dedicated envelope printer avoids this effect. If that happened, side folds and seal flaps would show through. With conventional printing methods, such as offset printing, you run the risk of embossing the side flaps of the envelope during the printing process. What is special about printing on envelopes?Įnvelopes are finished products made of four layers of paper.
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