Finally, after strict quality inspection, qualified microwave popcorn paper bags can be packaged and shipped out to major supermarkets, cinemas, and other sales channels for consumer use.

After completing the above steps, the rolled paper will enter the paper seam bag making machine for bag making. During the bag making process, the machine will cut and sew the paper roll into a complete paper bag according to the preset size and shape.

The composite paper is then loaded onto a printing machine or printing machine for positioning and gluing. The paper after printing glue is dried and sterilized through a medium temperature drying device to ensure the hygiene and safety of the paper bag. This step also enhances the firmness and durability of the paper bag.

Then, the printed surface paper and inner paper are laminated using a cold adhesive method. This composite method is not only sturdy, but also environmentally friendly, ensuring that the paper bag is not easily layered or damaged during use.

Next, the printed face paper will be subjected to film application on the laminating machine. This step is mainly to increase the durability and sealing of the paper bag, ensuring that it will not break or leak during microwave heating.

The production process of microwave popcorn paper bags is a combination of modern technology and traditional craftsmanship, aimed at manufacturing popcorn packaging that is both safe and convenient. The following are the detailed steps of the production process:

The design of microwave popcorn paper bags is clever and practical. It is made of special paper material, which can withstand the high temperature of a microwave while keeping the popcorn dry and fresh. The inside of paper bags is usually coated with a special layer of coating, which is used to absorb microwave energy and convert it into thermal energy, thereby quickly heating and bursting corn kernels.