Canada developed a security seal paper

The paper mill in Montreal, Canada, develops and manufactures self-adhesive sealing papers for packaging foods, avoiding the trouble of binding bundles with cords during packaging. The outer layer of this paper is kraft paper, which can be used for writing and printing. The inner layer is a special polypropylene foam material, tough and non-toxic, moisturizing, heat preservation and other functions, and the sap, flavor and smell of the packaged food will not be leaked. When it is opened, it loses its viscosity and has a certain anti-counterfeiting function.