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Optimizing Ink Performance: Pre- and Post-Print Considerations

Overview

This article addresses the processes before and after printing that may affect ink performance, based on customer inquiries regarding their production processes.

Pre-Print Considerations

  1. Storage Conditions:

    • Ink cartridges should be stored according to their recommended guidelines and always with the protective cap in place.
    • Water-Based Inks
      • Temperature Range:
        Ideal: 10°C to 30°C (50°F to 86°F)
        Avoid freezing or exposure to high heat (>40°C / 104°F)
      • Humidity:
        Ideal: 10% to 80% relative humidity (non-condensing)
        Avoid high humidity to prevent nozzle clogging or ink degradation.
    • Slvent-Based Inks
      • Temperature:
        Ideal: 15°C to 25°C (59°F to 77°F)
        Max Range: 5°C to 30°C (41°F to 86°F)
        Avoid freezing or prolonged exposure above 30°C.
      • Humidity:
        Ideal: 40% to 60% RH
        Store in a non-condensing environment.

  2. Production Environment:

    • Environmental conditions affect both drying time and the ink's adhesion to the substrate. Extremes will affect this greatly. 
    • Maintaining a dry, room temperature environment during the entire production process is crucial. This helps in achieving optimal ink adhesion and performance.
Post-Print Considerations

  1. Handling After Printing:

    • After printing, products may undergo additional processes such as being placed into master cartons or being sealed. It is essential to ensure that the ink has dried sufficiently before these steps to prevent smudging or transfer.
    • Bottles should be stored in a manner that prevents them from being tightly packed in bins where they may get jostled. This is important to ensure that the ink dries completely and does not rub off onto neighboring bottles.

  2. Ink Drying Time:

    • The drying time required for the ink can vary based on the specific application and environment. For instance, high humidity and certain substrates can cause the ink to dry more slowly.
Conclusion

Understanding the processes before and after printing is vital for ensuring optimal ink performance. Proper storage, handling, and environmental conditions can significantly impact the quality and durability of printed ink on products.