Level 4 Security Bag Seal Tape

The Level 4 security bag seal tape is a kind of anti-counterfeiting evidence bag with a relatively high anti-counterfeiting level and is more secure than the second-level anti-counterfeiting bag. It possesses all the anti-counterfeiting features of a second-level anti-counterfeiting bag. For instance, when attempting to open the bag, the anti-counterfeiting "VOID" text will be displayed at the adhesive area. At the same time, the four-level anti-counterfeiting bag also has functions that the two-level anti-counterfeiting bag does not have, such as the words "VOID" turning red at high temperatures, and the words "Tamper-Evident" melting, blurring or disappearing when attempting to open the seal with water or chemical solvent. Therefore, the four-level anti-counterfeiting bag can better prevent people from attempting to open the bag at normal temperature, low temperature, high temperature or through chemical means, ensuring the safety of the product.