7 Colors Offset Printing PE Coated Paper Rolls For Making Various Paper Cups

The Advantages of Using PE Coated to Make Paper Rolls

Applying a Polyethylene (PE) coating during the production of paper rolls transforms the base paper into a highly functional composite material. The primary advantages are derived from the PE layer's ability to create a robust barrier against liquids, vapors, and gases.

Key Advantages:

1. Superior Liquid Barrier and Water Resistance:

   This is the most critical advantage. The PE coating makes the paper impermeable to water and other liquids. This is essential for paper rolls destined to become food packaging like cups, takeaway containers, and liquid cartons, preventing leakage and saturation.

2. Excellent Grease and Oil Resistance:

   The non-porous PE layer effectively blocks grease and oil from penetrating the paper. This makes it ideal for packaging greasy foods (e.g., French fries, pizza, pastries) without the risk of the packaging becoming stained or weak.

3. Enhanced Sealability:

   PE coating has a low melting point, allowing it to be easily heat-sealed. This enables the creation of strong, leak-proof seams in automated packaging machinery, which is crucial for producing sacks, bags, and pouches efficiently and securely.

4. Improved Durability and Strength:

   The PE layer adds tensile strength and tear resistance to the paper. It also makes the paper more pliable and resistant to cracking when folded, enhancing its performance during conversion and in end-use.

5. Effective Vapor and Aroma Barrier:

   The coating significantly reduces the transmission of moisture vapor, helping to keep contents dry (or moist) and extending shelf life. It also helps in containing aromas within the packaging.

Summary:
In essence, using a PE coating on paper rolls is a cost-effective and highly reliable method to convert ordinary paper into a high-performance packaging material. It enables paper to compete with plastics in applications where moisture, grease, and airtight integrity are critical.