Food Sicker Printing: Everything You Need Know Part Two

The Cost of Inkjet Food Sticker Printing:  

Water-based inkjet is made up mostly of pigments that do not move, as do the dispersion agents — extremely high molecular weight chemicals. The only possible migrants in water-based inkjet prints are humectants that reside in the substrate before complete evaporation. Water-based inkjet, on the other hand, is rarely employed due to issues with adherence to polymeric surfaces.  
Because of its low viscosity, UV curable inkjet is prone to penetrating paper substrates (six times lower than UV flexo). The low viscosity is essential to guarantee that the ink can be jetted via the microscopic inkjet nozzles, hence this is a technical challenge. When the ink enters the substrate, it cannot be adequately cured, leaving harmful components exposed to migrate - a risk you just must accept.  

A primer can help to decrease the problem of penetration, but it will not solve it. In any case, when printing on paper-based materials, a primer is essential to create acceptable solids and an appropriate color gamut. This, however, raises the expense. Dry toner, on the other hand, can print without priming on ordinary paper sticker substrates, making it by far the greatest choice for food sticker printing.  

Print Quality and Food Stickers:  

Food sells when the packaging piques the consumer's interest. In other words, packaging and stickers must appear good on the shelf. As a result, image quality is critical.  

In terms of print quality and uniform dot placement, the dry toner technique is suitable for food sticker printing. It results in extremely dependable and uniform printing. Inkjet is less commonly employed since it is prone to dot placement mistakes, making it susceptible to differences between a drop's desired location and its actual landing site. Again, a primer can help with this.