Try not to use disposable paper cups to hold boiling water. To prevent water from penetrating, the inner walls of paper cups are coated with a thin layer of wax. If the water temperature exceeds 40°C, this layer of wax will melt. Therefore, paper cups should not be filled with water above 40°C. Paper cups produced by regular manufacturers use food-grade wax to coat the inner wall of the paper cup. Therefore, even if the water temperature is too high and the wax on the inner wall of the pap
RUIDA will participate the 2023 Canton Fair, one of the world's largest trade exhibitions. The Canton Fair, also known as the China Import and Export Fair,
is a prestigious eventthat attracts businesses and exhibitors from all over the globe.
To check electrical faults based on the presence and size of sparks. For example, if sparks are found between normally tightened wires and screws, it means that the wire ends are loose or the contact is poor.
First of all, the paper used to make paper containers must be food grade paper. Food paper is mostly imported from Europe and the United States and is considered the best grade among paper materials. Next, the paper must be coated with oil- and water-resistant materials through a laminating process before the subsequent molding steps can be carried out.