On February 21, 1791, English dye and fabric chemist John Mercer was born. He invented the mercerisation process for treating cotton which is still in use today and was a pioneer in colour photography. Background John Mercer John Mercer grew up in Lancashire, England. He entered the textile industry as a bobbin-winder when he was still a boy. His father died in 1802, and the family were left very poor. John moved about…Read more
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