Choosing the right ink for TIJ (Thermal Ink Jet) printers is crucial for optimal printing results. In this article, we will discuss how to choose the best ink depending on the substrate and printing conditions.
TIJ (Thermal Ink Jet) printers are a convenient tool for printing barcodes, lettering, and graphics. A key aspect, however, is choosing the right ink. There are two main inks: water-based and solvent-based (often ethanol).
Both types of inks for Gx series thermal printers have their distinct advantages depending on the substrate on which we will be printing. Both water-based and solvent-based inks are available in a range of colours, but black ink is the most commonly used.
Choose ink according to substrate
- Solvent inks: Ideal for plastic films, blister packs, aluminum foils, and coated cartons. They are characterized by high print contrast and fast drying to prevent smudging.
- Water-based inks: used for kraft paper, uncoated board, and uncoated paper. Like solvent-based inks, they provide clean, crisp markings with fast drying.
Ink drying time
Ink drying time is an important factor that is often overlooked. It is the length of time a TIJ ink cartridge can remain open and unused without risk of drying out. High temperatures and low humidity can reduce this time. It is advisable to protect the cartridge if the production line is stopped for an extended period of time.
Ink testing
It is always advisable to test the chosen ink in the most difficult production conditions. This will ensure that the ink adheres properly to the substrate and allows efficient printing.
