Before I explain you about crockmeter I wanna let’s you know about “Crocking”. It is an industry term referring to a transfer of a colorant through rubbing. The crocking test determines the resistance of textile colors to rubbing off and staining other materials. A fabric with poor color fastness could rub colorants off on consumer's furniture, other textiles or miscellaneous items. 

The Crockmeter is a unique lab testing instrument that measures the amount of color transferred by rubbing from textile materials (such as cloth, carpets, yarn, and leather) to other surfaces in a rapid and precise manner. On flat specimens, the Crockmeter has also been used to perform rub, abrasion and scuff testing. It may also be used to evaluate the smudge and smear resistance of pictures generated by a printer or copier. Wet and dry testing can be done on any specimen material. 

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