Knowledge
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- by John White
UV Ink Types: Rigid, Flexible and Specialty Constructions
Ink is the part of a UV printing job that customers ask least about and that decides most. The same file printed with a different layer construction on the same substrate can look identical on the bench and behave differently...
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- by John White
White Ink Strategy: Full, Selective and Reverse-Printed Layers
Almost every conversation about printing on dark, clear or reflective products ends in the same place: does this job need white? The answer decides the file, the pass count, the cost and the appearance, and getting it wrong is expensive...
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- by John White
UV Printing on Acrylic: Distortion, White Ink and Light Transmission
Acrylic is the substrate where the artwork decision and the production decision are the same decision. Whether a sign is viewed from the printed face or through the sheet determines the order of the colour and white layers, and that...
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- by John White
White Ink and Varnish Layer Order for Corrugated Plastic Signs
Corrugated plastic signs do not need one universal ink stack. White opaque sheets often need only color, while colored or translucent sheets may need a white underbase. Clear ink belongs in the specification only when a tested gloss, texture or...
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- by John White
White Ink and Varnish Layer Order for Acoustic Panels
White ink and clear ink should be added to an acoustic-panel print only after the panel maker approves printing and a sample confirms appearance, adhesion and the required acoustic performance. Porous, perforated, textured and fabric-faced panels cannot be treated as...
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- by John White
White Ink and Varnish on Foam Board: Layer Choices
For industrial foam-board printing, white ink is useful when the face color interferes with the artwork, while varnish is an optional surface effect that needs its own approval. White paper-faced board often needs neither. Choose the construction from the board...
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- by John White
White Ink and Varnish on Leather: Layer Planning
White ink and varnish on leather should be planned around the material’s background color, surface finish and movement in the finished product. For a dark leather panel, a white underbase followed by color is a useful starting point. Clear varnish...
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- by John White
Which Ink-Layer Order Works for Rigid Signage?
The correct white-ink and varnish structure for rigid and promotional signage depends on substrate color, opacity, texture, viewing direction and the required finish. Industrial production should begin with the simplest candidate—color only, white under color, or a verified varnish build—then...