Regarding testing methods, cartoon sticker manufacturers need to conduct a series of tests to ensure the quality and safety of the stickers. The tests include:
1. Environmental performance test: Testing whether the materials of the cartoon stickers meet environmental requirements, such as not containing harmful substances and not causing harm to humans or the environment.
2. Adhesion test: Measuring the adhesive strength of the stickers, judging the adhesive performance of the adhesive through methods such as tensile tests or shear tests.
3. Water resistance test: Immersing the stickers in water for a certain period of time and observing their adhesion performance and the integrity of the pattern.
4. Abrasion resistance test: Using a certain abrasion device to abrade the stickers and observing their abrasion resistance and the integrity of the pattern.
5. Anti-counterfeiting test: Testing the anti-counterfeiting function of the stickers using professional equipment or methods to ensure anti-counterfeiting and anti-counterfeiting properties.

