1. The surface is coated with kaolin, a naturally occurring mineral, to create a smooth, even coating that improves the printability and feel of the paper.
2. Compared with traditional polyethylene (PE) coatings, clay coatings can reduce the use of plastics, which is in line with environmental trends. Some products can even be fully recycled or biodegradable.
1. Hot drink cups: Coffee, tea, etc. require high temperature resistant paper cups (such as the materials commonly used by Starbucks and Luckin Coffee).
2. Cold drink cups: iced coffee and milk tea cups, which rely on the anti-condensation performance of the coating.