Material Sample Shop

Water-Activated Graphics - Paper that reveals graphics and text when wetted

Text and graphics are printed on paper with a transparent hydrophobic (water-repellent) ink. The printed areas will not absorb liquids and will therefore keep the paper's colour, while the non-printed areas will turn opaque and reveal the dark base colour when wetted. The colour change is reversed when the paper dries; the paper can therefore be activated multiple times.

Used for:
Water-activated graphics are used to convey marketing messages on beverage coasters and labels. It is also used for greeting cards, ads in magazines, and lottery tickets.

Details:
The sample has a black base colour, but other colours are available. A permanent colour change can be achieved by using juice, cola, coffee, or other strongly coloured liquids.

Idea:
Use it for paper-based diagnostic indicators in which the travel of blood or urine can be controlled.

The sample:
You get a beer coaster where you can read the secret text by adding a few drops of water. You can dry and try out the sample multiple times.  

All samples come with a laminated information card.

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Material Sample Shop sells material samples and small quantities of inspiring materials. You can use the samples to build your own material library or get materials for experiments.

All samples come with laminated information cards.

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