Many brands are also printed with cleaning signs, mainly to remind consumers to pay attention to cleaning and maintenance when using products, so as to prolong the service life of products and maintain the appearance and performance of products. Different types of products need different cleaning methods, so printing cleaning marks can help consumers know how to clean and maintain products correctly. For example, printing cleaning marks on clothes can guide consumers how to wash and iron clothes correctly so as not to damage the fabric or shrink it; Printing cleaning marks on electronic products can guide consumers how to clean the surface of products correctly and avoid product damage or failure caused by improper cleaning agents or methods.