1. Key Regulatory Standards
Food compliance regulations require all pre-packaged foods to clearly display expiration dates ('Best Before' or 'Use By') and production lot codes. These marks must remain legible throughout the entire product lifecycle—from cold chain transport to store shelves.
2. Anti-Smudge Ink Technologies
When printing on non-porous surfaces like PE, PET, or metallic barrier films, traditional water-based inks will smudge. Utilizing solvent-based ink cartridges (like MEK fast-dry formulations) ensures curing happens in under 0.5 seconds, providing water and friction-resistant lettering.
3. Positioning & Contrast
Dates and barcodes must be printed on flat surfaces with high contrast (e.g., using a pre-printed white background patch) to ensure retail scanners and consumer recognition work reliably. Avoid printing directly over sealing welds.
