How to Choose the Right CIJ Ink for Different Industrial Materials

1. Why Material Compatibility Matters in Industrial Ink Selection

Choosing an industrial inkjet printer is only one part of establishing a reliable coding process. The ink must also match the material receiving the printed information. Different substrates have different surface characteristics, absorption properties and chemical compositions. As a result, an ink that performs well on one product may produce unsatisfactory results on another.

Plastic packaging is a common example. Some plastic surfaces have relatively low surface energy, which can make ink adhesion difficult. Polyethylene and polypropylene products may require special attention to ink formulation and surface treatment. Metal components present another challenge because oil residues, oxidation, coatings and surface finishes can influence how well a printed code remains attached. Rubber products may have textured surfaces or contain processing additives that affect printing performance.

Glass, meanwhile, is generally non-porous and smooth. Although it provides a relatively consistent printing surface, condensation, moisture and product handling can influence the final result. Manufacturers should therefore avoid selecting ink based only on the general material category. The exact surface condition and production environment also matter.

2. Compare Ink Types According to Printing Requirements

Dye-based and pigment-based inks serve different industrial coding requirements. Dye-based inks are commonly considered for applications that need clear, compact characters on suitable light-colored surfaces. Their performance depends on the substrate, ink formulation and operating conditions.

Pigment-based inks are particularly useful when stronger visual contrast is required. For example, dark rubber tubes, colored plastic cables and other difficult-to-identify surfaces may benefit from light-colored pigment printing. However, pigment ink selection also requires attention to the printer's fluid system, maintenance requirements and compatibility with the intended substrate.

Other factors should also be evaluated. Fast-drying performance can be important when products move quickly through conveyors or undergo immediate handling. High-adhesion formulations may be necessary for surfaces that are exposed to friction or subsequent processing. Chemical resistance may become relevant when printed products encounter cleaning agents, oils or other substances during their service life.

DAYSJET provides different CIJ configurations for industrial coding applications, including the 1770-OPQ pigment ink model. Its product portfolio gives manufacturers options to consider when evaluating standard and higher-contrast printing requirements. The final ink choice should still be confirmed through actual material testing rather than assumed from the printer model alone.

3. Test the Complete Printing Process Before Making a Decision

A reliable ink selection process should include more than checking whether a sample code appears immediately after printing. Manufacturers should evaluate the complete production sequence, including printing, drying, handling, packaging and storage.

Start by preparing representative samples from the actual production material. Print the required date, batch number, identification code or other variable information. Observe whether the characters are complete and easy to read. After printing, check drying time and resistance to normal handling. If the product will encounter moisture, friction, heat or chemicals, these conditions should also be included in the evaluation where relevant.

It is also important to test the intended production speed. A sample printed on a stationary object does not necessarily represent the performance of a moving production line. The printer should be evaluated under realistic operating conditions, with attention to code position, character clarity and repeatability.

Before purchasing, manufacturers should communicate their substrate type, surface color, production speed and expected code content to the equipment supplier. DAYSJET can use this application information as a starting point for discussing suitable printer and ink configurations. A sample-based evaluation helps reduce uncertainty and makes the final equipment decision more practical.

Conclusion

The right CIJ ink is determined by the relationship between substrate properties, printing conditions and the required code performance. By comparing dye and pigment options, evaluating adhesion and drying behavior, and testing actual production samples, manufacturers can establish a more reliable industrial coding process. Selecting the ink and printer as one integrated solution is an important step toward consistent identification and long-term production efficiency.