Offset printing in Lahore

Offset printing in Lahore — how the process decides your price

Offset lithography works on the principle that oil and water repel each other. Your artwork is written by laser onto an aluminium plate, one plate per colour, so the image areas accept ink and the blank areas accept water. Ink transfers from the plate to a rubber blanket and from the blanket onto the sheet — it is "offset" via the blanket rather than printed directly, which is what gives clean transfer onto textured board and protects the plate.

That plate count is the single thing most buyers underestimate. A four-colour job needs four plates; every additional spot or Pantone colour adds another. Together with make-ready — mounting the plates, setting ink keys, bringing the press up to colour — this is a fixed cost that is paid whether you print five hundred sheets or fifty thousand. It is why offset gets cheaper per unit as the run lengthens, and why a short run on offset is poor value. See how plates and make-ready work in our production stage.

What you get in return is colour you cannot get any other way. A spot colour is a pre-mixed ink laid down as itself, so a brand colour reproduces exactly rather than being simulated from four process inks. Offset also carries the widest finishing range — spot UV, hot foil, embossing, drip-off varnish and window patching all run on or after the offset press.

For packaging, offset is the process behind almost every retail carton you have handled. The printed sheet is laminated, die-cut on a steel-rule die made to your dieline, then folded and glued. That is why the dieline has to be right before anything is printed — the die is a physical tool, and remaking it is neither fast nor free. Our mono cartons and rigid boxes all start there.

We print offset for pharmaceutical, food, cosmetics and corporate clients across Pakistan and for export. Every job runs through the same discipline: prepress and a confirmed dieline, then a physical sample you approve, then production with in-process colour checks against that approved sample. Nothing goes to plate on a verbal approval.

Two things quietly decide what an offset job costs beyond the plate count. The first is imposition — how many copies of your piece fit on one press sheet. A carton redrawn a few millimetres smaller can sometimes yield an extra up per sheet, which lowers the price of every unit in the run, so it is worth asking before the artwork is finalised rather than after. The second is substrate: the same ink looks different on coated art card, uncoated stock and kraft, because coated stock holds ink on the surface while uncoated absorbs it. Uncoated and kraft print softer and darker, which is why we sample on your actual board rather than describing the result.

Finishing runs after the press, and the order is fixed: print, then coat or laminate, then foil or emboss, then die-cut, then fold and glue. Each pass adds handling time, which is why a heavily finished carton has a longer lead time than a plain one at the same quantity. If a deadline is tight, dropping one finishing pass usually buys more time than any other change. See packaging and boxes for how a printed sheet becomes a finished box.