ripple paper cup

ripple paper cup is a disposable drinking vessel made from paperboard. Its defining characteristic is a series of horizontal, corrugated ridges or grooves—known as "ripples"—that run around its sidewall. These ripples are not just decorative; they are a functional design feature that provides several key benefits: Improved Grip: The ridges make the cup easier and more secure to hold, especially with cold or condensing beverages, reducing the chance of slipping. Structural Strength: The corrugated pattern adds rigidity to the sidewall, helping the cup resist buckling when held, making it more durable than a smooth-sided cup. Thermal Insulation: The air trapped within the ripples creates a slight insulating layer, keeping cold drinks colder for longer and making the cup more comfortable to hold with hot beverages (when used with a sleeve). Aesthetic Appeal: The textured design provides a classic and attractive look, often associated with high-quality takeaway beverages. These cups are typically lined with a thin layer of polyethylene (PE) or polylactic acid (PLA) for bioplastic versions to make them leak-proof and suitable for holding both hot and cold liquids.