Date coding for bottled water and beverages
Print manufacturing dates, expiry dates and lot numbers on PET bottles, glass bottles, cans, caps and cartons on continuous production lines.
The short answer
CIJ is often the starting point for bottle and can lines because it prints without contact on curved surfaces. For permanent, ink-free codes on PET, compare CO₂ laser and test actual bottles before choosing.
What to consider
These details help match the printer, ink, printhead, laser and inspection equipment to your application.
Surface and shape
PET bottles, glass bottles, cans and caps have different curves and surface properties.
Moisture
Filled or chilled bottles may carry condensation. Test the print position and ink under conditions close to actual production.
Line speed
Specify conveyor speed, product spacing and line count to choose the printhead and message layout.
Technologies to test
Date coding and laser marking on PET bottles, glass bottles and cans must be assessed against the material, mounting position and actual environment.
PET bottles, glass bottles and cans on continuous lines
Test clarity, adhesion, moisture and speed
Test actual samples before choosingPET bottles requiring permanent, ink-free codes
Test contrast, mark quality and material integrity
Test actual samples before choosingBottle cartons and trays
Test character clarity and printhead position
Test actual samples before choosingInspect products and printed codes
Define the inspection point, lighting and reject signal
Test actual samples before choosingTest under realistic production conditions
Good samples cover the actual materials, colours, messages and speeds, revealing limitations before investment.
Frequently asked questions
Practical answers to help you prepare for a discussion with our engineers.
Can I print dates on bottles with condensation?
Test actual bottles first. Moisture levels, print position and ink formulation affect adhesion. You may need to relocate the printing point or prepare the surface.
Should PET bottles use CIJ or laser?
CIJ supports continuous lines and convenient message changes. CO₂ laser provides permanent codes without ink. Choose based on bottle trials, colour and production speed.
What information is needed to choose a printer?
Send bottle samples, message layout, print position, conveyor speed, product spacing and moisture conditions so we can assess the actual line.
Choosing a system with Better Code
Send your sample
Specify the material, message, position and line speed.
Test and compare
Assess clarity, adhesion, readability and limitations.
Installation and support
Select equipment, install, train operators and plan maintenance.
Let Better Code assess your samples
Send product photos, material details, print data and production speed so we can select and test the right technology.