Washability

A sample from an area with as many different printed colors as possible, as well as the ground, is tested using a Gardner Abrasion tester equipped with a specified cellulose sponge and a specified detergent solution. After the requisite number of cycles, the machine is stopped, the specimen removed, rinsed under running water, and set aside for examination after drying. After drying, the specimen shall show no evidence of appreciable change to the printed or ground surface. Areas of localized wear clearly related to wrinkles is ignored.