Food label adhesives are completely made of environmentally friendly materials, non-toxic and non-permeable, and have been FDA certified. They can be used in the food industry and can even be directly attached to fruits, vegetables, and meat products. Once food labels are attached, they are often stored in different environments. These environmental factors directly affect the selection of materials for manufacturing labels. For example, in a low-temperature refrigeration (0-5 degrees Celsius) environment, there will be condensation on the surface of the package to be labeled. In this environment, the adhesive must exhibit good adhesion to the wet substrate.