Paper: It’s a Question of Brightness
Paper-brightness measurements may be an illusion. Here’s why.
However, things are different now; ambiguity has taken center stage in many quarters of the paper industry. Today, a brightness measurement reflects the brightness of the pulp and the paper.
Why does that matter? To influence brightness, most white paper manufacturers use some level of fluorescent whitening agents (FWAs). FWAs increase the “perceived whiteness” of paper. Bear in mind, they’re not inherently bad, but they do pose some problems.
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