产品系列： <span>包装系列</span>

Packaging ink: the hard part is adhesion and deformation, not colour

The real difficulty in packaging printing has never been colour matching — it is adhesion and deformation. Paper gets folded and glued, fabric gets stretched and washed, and plastic has low surface energy that barely accepts ink. A single “universal” ink fails in three different ways on these three substrates: cracking along fold lines, washing out, or scraping off under a fingernail. This series is split into two separate formulation lines precisely to avoid the “works everywhere on paper, fails in production” problem.

The plastic line targets PVC, PC, PP and PET, using a dedicated resin system and curing parameters to bond to low-energy surfaces — screen printing for flat parts, pad printing for small complex parts, gravure for continuous roll stock. The paper and fabric line uses a flexible system that survives folding and stretching: offset and flexo for paper, mainly screen for fabric, with a soft hand feel and wash resistance. Both lines accept UV fluorescent, thermochromic or scratch-off overlays, but adhesion must be re-validated after adding them — previous parameters cannot simply be carried over.

Adhesion can only be confirmed on press. Please send the actual substrate, ideally together with downstream processes (lamination, hot stamping, UV varnish, washing conditions). We proof on your material and test scratch, solvent and wash resistance as used. Where plastic surface energy is very low, corona or flame treatment may be needed first — often more effective than changing the ink.