What are the common types and materials of paper bag packaging?

The common types and materials of paper bag packaging are diverse, widely used in fields such as food, shopping, gifts, and industry to meet the needs of different scenarios for strength, printing, environmental protection, and functionality.

Common materials

Kraft paper: available in white and yellow, with high toughness and tear resistance, suitable for load-bearing packaging such as clothing bags and bulk food bags.

White cardboard: firm and thick, with a smooth surface and full printing colors, commonly used in high-end gift bags and brand handbags.

Copperplate paper: High glossiness, strong three-dimensional image, suitable for full page printed promotional paper bags, but slightly lower stiffness than white cardboard.

Coated paper (PE/PP film): A layer of polyethylene film is coated on the surface of the paper, which has waterproof and oil resistant properties and is widely used for food packaging such as takeaway, hamburgers, milk tea, etc.

Grey background whiteboard paper: one side white and one side gray, with a lower cost than white cardboard, suitable for mid-range packaging needs.

Common types (by structure and purpose)

Handheld paper bag: designed with a handle for easy portability, commonly found in shopping malls, bookstores, and luxury stores, serving both practical and brand promotion purposes.

Three sided sealed bag: Three sided heat sealed, with a simple structure, commonly used for packaging tea, seasonings, and small snacks.

Self standing bag: The bottom can support standing and has a good display effect. It is commonly used for retail packaging of nuts, coffee, pet food, etc.

Zipper bag: equipped with plastic zippers, can be repeatedly sealed, retains fragrance and moisture, suitable for clothing, office supplies, and high-end food.

Valve pocket: There is a filling valve port at the top, suitable for automatic filling of powder or granular materials, such as milk powder, feed, and chemical raw materials.

Gift paper bag: supports logo printing, waterproof coating, rivet reinforcement and other processes, commonly used in holiday gift boxes and brand gifts.