Food-grade egg inks are fast-drying, setting in seconds rather than minutes on the shell. Quick drying is essential on a moving line so codes do not smudge during packing, stacking or transport.
Water-based, food-grade formulations dry by evaporation and remain legible through refrigeration, washing and long-distance shipping. On very fast lines, ask the supplier to confirm the set time on your own shells: humidity and shell temperature both change how quickly the mark dries.
If you see smearing, check that you are using the correct food-grade cartridge and that the print distance (2–5 mm) is set correctly.
Why SHICAI: Every SHICAI printer — including the Small Character Egg Printer — uses ink designed to sit on the shell surface rather than soak in, with documentation available per batch.
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SHICAI supplies food-grade egg coding machines to poultry farms and packers across the US, UK, EU, Australia and worldwide. Every unit ships with food-grade ink documentation and 24-hour engineering support.
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