How Paper Cups Are Made (Factory Process) | Paper-Based Coating, Forming, Leak Test & Packaging

Step inside a modern factory and watch how paper cups are made—from jumbo rolls of cupstock to finished cups ready for shipment. This full process video focuses on paper-only manufacturing, using a paper-based (aqueous) barrier coating designed to improve liquid resistance during cup forming and sealing. You’ll see the complete production workflow, including: Cupstock preparation: jumbo paperboard rolls, web handling, and surface cleaning Paper-based barrier coating: uniform coating application and industrial drying (Optional) printing: simple non-text patterns on cupstock (no readable branding) Die cutting: sidewall blanks and bottom discs cut with precision Cup forming: rolling the sidewall, seam gluing, and setting the bond Bottom sealing: inserting the base disc, crimping, heat/pressure sealing for leak resistance Rim curling: creating a smooth rounded lip Quality control: vision inspection, rejects removal, and leak testing with measured water Stacking & packing: automatic nesting, bundling, carton packing, palletizing, and loading for distribution If you enjoy How It’s Made, factory process documentaries, and industrial automation videos, this is a satisfying behind-the-scenes look at a high-speed paper cup production line—capturing realistic machine motion and factory ambience with no narration. 👍 Subscribe for more full-length manufacturing process videos (paper, packaging, automation, and modern factory production).