Level 2 purple Security Bag Seal

Product description of Level 2 Security Bag Seal : 
The Level 2 security bag seal incorporates advanced anti-counterfeiting mechanisms. It consists of a substrate made from PET or PO anti-counterfeiting materials. After the release paper is removed, a membrane is bonded to it, creating a seal with robust anti-counterfeiting capabilities. This design is particularly suitable for applications such as security bags, logistics bags, and anti-disassembly scenarios.
One of its key anti-counterfeiting features is the temperature - sensitive function. There is a temperature indicator layer on the seal's surface. In the blank area of the seal, the word "VOID" is printed. When the bag is exposed to a high temperature exceeding 60 degrees Celsius or when an attempt is made to open the bag using high - temperature methods, the temperature - sensitive layer reacts rapidly. Typically, it changes color from white to red. This color change is quick, distinct, highly visible, and intuitive, providing clear evidence of any unauthorized high - temperature interference.