How to remove colored printed patterns from the surface of polypropylene materials?
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Some polypropylene materials have trademarks, text, patterns, etc. printed on their surfaces, which poses certain difficulties for recycling and processing. Using some organic solvents should be able to wash them off, right? Could someone please give me some advice? Thank you. It is necessary to minimize damage to the original material while also avoiding the use of expensive solvents to facilitate bulk cleaning. Please speak up more.
You can try sec-butyl acetate; it works well