Heat Resistance Characteristics of Coated Paper
Coated paper is a composite material made by coating a layer of plastic film (such as PE) onto the surface of ordinary paper. This film gives the paper waterproof and oil-resistant properties, but it also affects its heat resistance. Generally, coated paper can withstand temperatures between 80℃ and 120℃, depending on the film material and thickness. Beyond this range, the film may soften, deform, or even release harmful substances.
Common High-Temperature Applications
Hot Beverage Cup Sleeves: Safe for brief contact with hot drinks at 60-70℃, but not suitable for prolonged immersion in high temperatures.
Takeout Packaging: Suitable for holding freshly cooked food (approximately 90℃), but should be consumed quickly to avoid prolonged exposure to high temperatures.
Baking Mats: Can withstand short-term baking at 180℃ in an oven, but may char after 15 minutes.
Usage Precautions
Avoid direct contact with open flames or the surface of electric heating appliances.
When microwaving, choose coated paper without a metal coating and do not exceed 1 minute.
Check for melting or deformation before reuse.
Trace amounts of substances may be released under high-temperature conditions; for food contact applications, food-grade coated paper is recommended.
