Classification of Paper Cups

Paper cups are categorized into single-sided PE-coated and double-sided PE-coated cups.
· Single-sided PE-coated paper cups: These are made from paper with a PE (polyethylene) coating on one side (most standard market cups and promotional cups fall into this category). They are characterized by a smooth PE coating on the interior surface that holds the liquid.
· Double-sided PE-coated paper cups: These are made from paper with a PE coating on both sides. They are characterized by PE coatings on both the interior and exterior surfaces of the cup.
· Paper cup size: Cup sizes are measured in ounces (oz). Common examples found on the market include 9 oz, 6.5 oz, and 7 oz cups.
· Ounce (oz): An ounce is a unit of weight; in this context, 1 ounce corresponds to the weight of 28.34 milliliters of water.
This can be expressed as: 1 oz = 28.34 ml = 28.34 g.
Common types of paper cups include disposable cups, promotional cups, hospitality cups, beverage cups, milk tea cups, and tasting cups.