13 stories about troubleshooting in coffee and food packaging.
A tear notch decides where a tear starts, not where it goes. Why packaging film has a grain, how web layout sets it, and when laser scori...
Read more →Bag panels do not scale proportionally, and artwork shrinks well but grows badly. Why the same file fails on a bigger bag, and why you de...
Read more →Artwork that runs into the seal zone leaves ink inside the weld, and ink does not weld. Why the bag still looks perfect, why it fails lat...
Read more →A splice in a roll of film is deliberate, not damage. Why it costs you a few bags mid-run, why it reads as a defect, and what flagging an...
Read more →Cold film loses impact strength, so gussets split and zippers tear under normal handling. Why it looks like transit damage, and the free ...
Read more →New coffee bags that cling carry a static charge from the converting line, not humidity. What it costs you, and why settling time is buil...
Read more →A fresh carton of laminated coffee bags often carries a faint chemical note. Where it comes from, why coffee of all things will pick it u...
Read more →On a rotogravure bag the PET is glossy to begin with, and matte varnish is what removes that shine. Applying less of it in selected areas...
Read more →A barcode has only four rules: dark bars, a clear quiet zone, full height, and a flat spot on the back panel. Everything else is yours, w...
Read more →The seam down the back of a coffee bag is how a flat roll of film becomes a tube. What a fin seal and a lap seal are, why the seam matter...
Read more →The same artwork prints differently on compostable kraft than on a conventional laminate. The substrate is not optically bright, the inks...
Read more →On a laminated coffee bag the ink is printed on the underside of the outer film and sealed inside the wall. Why the graphics never scuff ...
Read more →RGB vs CMYK, explained for packaging: why your colors look different on screen, why Mac and PC displays disagree, and how to get printed ...
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