Embossing ink
From Craft Wiki
Embossing ink or watermark ink is a clear, slow drying and slightly sticky ink.
This ink is available in large ink pads, small ink pads or cubes, pens, refill bottles …
There are a few different applications for this type of ink:
- Applying the ink to colored cardstock will darken the paper and give a watermark look
- Applying the ink to any kind of cardstock or surface will allow embossing powder to stick to the inked areas, in order to heat emboss
- Next to embossing powder, pigment powders can be used in the same way: by adding it (with a paintbrush) to the inked areas. It's possible you'll have to use a fixative to prevent the powder from rubbing off.