Kraft paper is commonly used as the base material for poly coated kraft paper, which is created by applying a layer of polyethylene (PE) coating to one or both sides of the kraft paper. This combination offers several advantages and applications. Here are some key uses of kraft paper in poly coated kraft paper:

• Moisture and Oil Resistance: The polyethylene coating provides a barrier against moisture, oil, grease, and other liquids. This makes poly coated kraft paper suitable for packaging products that require protection from moisture or oily substances. It helps maintain the quality and integrity of the packaged goods.
• Heat Seal ability: Poly coated kraft paper can be heat-sealed, allowing for secure closure of packaging. The heat-sealing process creates a tight and tamper-evident seal, ensuring product freshness and preventing contamination.

• Strength and Durability: The inherent strength of kraft paper combined with the polyethylene coating enhances the overall strength and durability of the material. This makes it suitable for packaging applications that require resistance against tearing, punctures, or rough handling.

• Printing and Branding: Kraft paper provides a printable surface that allows for high-quality printing of branding elements, logos, product information, or promotional messages on the packaging. The polyethylene coating ensures that the printed designs are protected and maintain their visual appeal.

• Versatility: Poly coated kraft paper can be used for a variety of applications, including food packaging, industrial packaging, and retail packaging. It can be manufactured into bags, pouches, wraps, or liners, depending on specific requirements. The versatility of poly coated kraft paper makes it suitable for various industries and products.

• Eco-Friendly Considerations: While the polyethylene coating adds some limitations to the recyclability of the material, kraft paper itself is made from renewable and recyclable resources. Selecting poly coated kraft paper that uses recycled or responsibly sourced materials can help reduce its environmental impact.

Overall, the combination of kraft paper and polyethylene coating in poly coated kraft paper provides a durable, moisture-resistant, and versatile packaging solution. It is particularly beneficial for applications that require a balance between strength, moisture protection, and printability.