loading . . . Alcoholysis of nylon 6 waste to Δ-caprolactam promoted by phosphoric acid Materials made from nylon 6 are widely used but difficult to recycle back into their original monomer, Δ-caprolactam. This work introduces a simple acid-catalyzed alcoholysis method that enables efficient and selective depolymerization of nylon 6 into Δ-caprolactam. Additionally, this process shows excellent compatibility with a range of real-world nylon 6 materials, including post-consumer fishing net waste, thread, 3D-printing filament, fabric, and carpet, offering a practical pathway toward closed-loop recycling with both environmental and economic benefits. http://dlvr.it/TRpvrr