Optimizing Ink Adhesion in Hybrid Printing

A common issue faced in hybrid printing with Epson DTG machines is the fading of CMYK inks during the washing process, while the white underbase remains intact. This suggests that the white ink may not be effectively securing the CMYK ink. Addressing this issue involves several adjustments to both the pre-treatment process and the inks used.

1. Pre-Treatment and Ink Preparation: Ensure that the garment is adequately pre-treated before applying the white underbase. This pre-treatment should enhance the ink's adhesion and provide a solid foundation for the subsequent DTG layers. Adjusting the formulation or concentration of the pre-treatment might be necessary to optimize it for both types of ink.
2. Ink Compatibility: The compatibility between the screen-printed underbase and the DTG inks is crucial. Experiment with different white inks or additives that might promote better binding with the DTG inks. Some manufacturers offer specific hybrid inks designed for such applications, which might provide a more robust solution.
3. Heat Setting Parameters: The curing or heat setting process is vital in ensuring that the inks are properly fixed to the fabric. Both the temperature and the duration of the heat setting might need to be adjusted to ensure that the DTG inks are fully cured without affecting their vibrancy.
4. Testing Different Fabric Types: The choice of fabric can significantly impact the outcome of hybrid prints. Testing the process on various textiles might reveal a more suitable fabric type that better holds the inks.
5. Use of Plastisol Transfers: As an alternative to direct DTG printing, consider using plastisol transfers. This method involves screen printing a design onto a transfer paper and then heat-pressing it onto the garment. It can offer better control over the ink deposition and might result in less fading after washing.

Problem Solving in Practice

Developing a custom solution such as modifying your Epson DTG machine to better accommodate hybrid printing techniques can be beneficial. Innovations like a custom attachment for precise registration have been successfully implemented, yet the challenge of ink fading remains.

Companies like Aeoon have pioneered solutions in this space, which suggests that further research into their methods could be enlightening. Collaborating with ink manufacturers or machine providers for insights and potential upgrades could also lead to improved outcomes.

Continuous Improvement and Community Engagement

Engaging with forums and professional groups dedicated to DTG and screen printing can provide additional insights and practical advice. Many practitioners are likely to have encountered and overcome similar challenges, and their experience could prove invaluable.

Stay Updated and Informed

For those interested in the latest advancements in DTG and hybrid screen printing technology, consider following industry-specific channels and blogs. BCH Technologies offers a range of resources, including a YouTube channel (https://youtube.com/@bchtechnologies) and a tech blog that provides valuable information and updates. Additionally, visiting local tech shops like those in Greensboro, North Carolina, can offer hands-on experience and direct support.

By addressing the technical challenges through meticulous testing, continuous learning, and community engagement, hybrid printing with Epson DTG machines can reach new heights of quality and durability.