Primer is a critical pre-press process that modifies substrate surfaces through physical or chemical treatments to enhance print quality. Specifically for HP Indigo’s electroink printing, water-based resins (such as polyurethane) are used to improve adhesion, addressing ink layer peeling issues on non-absorbent substrates like PVC and PET.

Design your Flat Primer Coating Machine:

Please specify the following requirements and here we will customize the primer coating machine for you:

• Maximum substrate size and minimum substrate size
• substrate thickness range
• substrate type: paper, PE, PVC, PET, BOPP, adhesive sticker etc
• Primer model
• Varnish type: water-based primer varnish, but do you apply UV varnish too?
• Maximum coating Speed
• Factory floor schedule: compact or industrial

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