What paper suits an instruction leaflet? Thin, opaque and fold-tolerant. Most leaflets sit between 60 and 120 gsm, with 70 to 90 gsm covering the common cases. Below that the sheet turns translucent and print shows through from the reverse; above it the folded spine becomes bulky inside a small carton. Opacity matters as much as weight, because a lightweight sheet with good opacity reads better than a heavier translucent one.
Which fold format should the leaflet use? It depends on how much copy there is and how the pack is opened. A single fold gives four panels, a roll fold or a Z fold gives six, and a gate fold suits a short message that should open out. Every extra panel adds a crease and a chance of misalignment, so the format should follow the content rather than the other way round. Folding behaviour and paper stiffness are linked, as the note on paper weight and stiffness explains.
Why do leaflets come back from the printer unreadable? Usually because type was set at the artwork stage without considering the finished size. Body text below about 6 pt becomes hard work at arm’s length, and reverse type – white on a dark solid – needs a larger size and a lighter background to stay legible. Line length matters too: a 6 pt line running the full width of an A4 panel is harder to read than the same text in two columns.
How many languages can one leaflet carry? As many as the panels allow, but the layout has to be planned for the longest one. German and Russian expand well beyond the English word count, and Arabic or Hebrew need right-to-left setting that is not simply a mirrored file. Design each language block to its own length, then set the panels; designing in English and squeezing translations in afterwards is how text ends up at 4 pt.
What artwork details cause problems at print? Small type in four-colour black, where registration drift produces coloured fringes; hairlines under 0.25 pt that break up on uncoated stock; and images placed where the fold will run, so a face or a diagram lands on the crease. Colour build in small text is covered in the note on design files and separations, and the same rules apply to leaflets.
How should the leaflet be checked before the run? Print one copy at final size, fold it, and read it in the light of a room rather than on a backlit screen. Check the panel order after folding, because a leaflet that reads correctly flat can open in the wrong sequence. Confirm that any regulatory text is complete and that the version number and date are on the sheet. Paper choices and their effect on ink are set out in the art paper comparison.
What packing format keeps leaflets usable? Decide whether they ship flat, folded, or inserted into the carton, and specify the count per bundle. A leaflet folded and then compressed under a heavy carton takes a set and will not lie flat again. If the leaflet goes inside the box, agree who inserts it and whether the folding direction has to match the pack opening. The wider question of choosing a manual printer is covered in the guide to choosing instruction manual printing.
Chengtop prints printed paper cards and retail cartons alongside folding cartons and rigid boxes in Wuhan, so the leaflet and the carton can be planned together. Send the copy length, languages and finished size and we will propose a paper and fold. Message us to start.
