What are the advantages of PE coated paper in food packaging?

PE coated paper has many advantages in food packaging, which makes it the material of choice for many food packaging applications. The following are the main advantages of PE coated paper in food packaging:

Waterproof and oil-proof performance
Waterproofness: The PE (polyethylene) layer has excellent waterproof properties and can effectively prevent liquids from penetrating into the paper. This property is especially important for foods that need to be in contact with liquids or humid environments (such as frozen foods and fresh foods).
Oil-proofness: PE coated paper can resist the penetration of grease and is suitable for the packaging of fried foods (such as French fries, fried chicken) or foods with high fat content (such as pastries and pizza).

Safety and hygiene
Food safety compliance: PE coated paper usually uses food-grade polyethylene materials and complies with the relevant food safety standards of the FDA (U.S. Food and Drug Administration) or the European Union to ensure safety when in direct contact with food.
Non-toxic and odorless: The PE material itself is non-toxic and odorless, and will not affect the flavor or quality of food. It is particularly suitable for the packaging of sensitive foods.

Good heat-sealing performance
Easy to heat-seal: The PE layer has good heat-sealing performance and can be quickly sealed by heating to form a firm seal. This feature makes PE coated paper widely used in bagged foods (such as snack bags, coffee bags) and disposable food containers (such as hamburger cartons).
Improve packaging efficiency: PE coated paper with excellent heat-sealing performance can improve the efficiency of automated packaging production lines and reduce labor costs.

Certain barrier properties
Gas and moisture barrier: Although the barrier performance of PE coated paper is not as good as aluminum foil or high-barrier plastic film, it can still provide sufficient protection for some foods with medium and low barrier requirements (such as fast food and baked goods) to extend the shelf life of food.
Moisture-proof and mildew-proof: The PE layer can effectively prevent external moisture from entering the packaging to prevent food from getting damp or moldy.

Cost-effectiveness
Affordable: Compared with pure plastic packaging materials (such as PP, PET), PE coated paper has a lower cost, and it has both the rigidity of paper and the flexibility of PE. It is a cost-effective packaging material.
Lightweight design: PE coated paper is lighter than traditional metal or glass packaging, which helps reduce transportation costs.

Environmental friendliness
Recyclability: Although PE coated paper is more difficult to recycle than pure paper, with the advancement of technology, some PE coated paper can be separated and recycled.
Reduce plastic use: Compared with packaging made entirely of plastic, PE coated paper reduces the amount of plastic used and reduces the impact on the environment.

Printing suitability
Good printing performance: PE coated paper has a smooth surface and is suitable for high-quality printing processes (such as flexographic printing and gravure printing). It can present exquisite patterns and brand logos on the packaging and enhance the market appeal of the product.
Scratch resistance: The PE layer can protect the printed pattern from wear and ensure the integrity of the packaging appearance.

Versatility
Adaptable to a variety of food types: PE coated paper can be used to package solid, liquid, powdered and other forms of food, with a wide range of applications.
Customized design: By adjusting the thickness of the PE coating, the type of substrate and the composite structure, the packaging performance can be customized according to the needs of different foods.

Convenience of disposable use
Easy to tear: After special treatment, some PE coated papers can be easily torn, making it easier for consumers to open the package.
Disposable tableware and containers: PE coated paper is often used to make disposable food containers (such as paper cups and lunch boxes), which are both light and durable.

Temperature adaptability
Low temperature resistance: PE coated paper can still maintain flexibility in low temperature environments and is suitable for packaging frozen foods.
High temperature resistance: Some PE coated papers can withstand heating at a certain temperature after being modified, which is suitable for microwave heating scenarios.