Uncovering the mystery of white ink

I began my Tuesday with the best of intentions. I had spent the previous afternoon carving away tiny areas in my most recent linocut. There is always this sense of excitement and expectation when I print the next layer — as it is hard to predict the effects of the carving and the new color.

In my latest linocut, I needed to transition from a very bright yellow-green to blues, and I knew from experience that unless some of the green was blocked by a more opaque ink, I would not get to the blues that I sought. So I had printed a white ink, tinted with blue.

Titanium white
Was the culprit the Titanium White?

Alas, when I gently touched the surface of the linocut, I could feel that it was still tacky and wet. A bit of the very light blue remained on my finger. Sometimes the last layers of a linocut dry more slowly…but in this case I think the culprit was the Titanium White ink. With no printing happening on this day, I decided to try and discover why it was that the white ink behaved so differently from my other inks.

Sadly, when I typed in a search of “why does white ink not dry like other inks” I didn’t get any useful information. Complex treatises from the commercial printing industry surfaced, with discussions about squirting inks and plasticity. Not what I needed. Continue reading “Uncovering the mystery of white ink”

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