You’ve sent your Pantone reference. The manufacturer prints a proof. It arrives — and the colour is completely wrong. Your brand’s signature coral looks salmon. Your deep emerald looks forest green. What happened?
Why Colours Shift on Tubes
Printing on a cosmetic tube is fundamentally different from printing on paper. Here’s why:
- Substrate colour: Paper is white. Tube bodies can be white, natural (slightly yellow), silver (ABL), or tinted. The base colour affects every ink printed on top of it.
- Ink system: Tube printing uses UV-curable or solvent-based inks, not the water-based inks used in paper printing. The pigment chemistry is different.
- Surface curvature: Ink sits differently on a curved cylindrical surface than on a flat sheet. Light reflects off the curve at varying angles, changing perceived colour.
- Lamination effect: Matte or glossy lamination over the print changes the colour temperature. Matte makes colours appear 10-15% darker. Glossy makes them appear slightly more saturated.
How to Get Accurate Colour Matching
- Always proof on actual tube material. Never approve colour from a paper printout. Insist on a tube proof.
- Provide physical Pantone chips, not just numbers. Different Pantone books (Coated vs Uncoated) give different results. Send the physical chip.
- Specify your lamination during proofing. If your production tubes will have matte lamination, your proof must also be matte-laminated.
- Allow for Delta E tolerance. In tube printing, a Delta E of 2-3 is considered acceptable. Anything below that is near-impossible to maintain across production batches.
- Budget for 2-3 proof rounds. First proofs rarely match perfectly. This is normal, not a manufacturer failure.
Colour management is one of the trickiest parts of tube production. Module 3 includes a colour approval checklist and specification template.