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Security Material is a semi-transfer anti-counterfeiting material with a base material of 25# or 36# or 50#, which is usually used for box sealing and anti-demolition. Once the label is lifted, the pre-set anti-counterfeiting font information (such as VOID or VOIDOPEN or customized pattern) will be revealed on the label surface material. At the same time, VOID or VOIDOPEN or customized pattern anti-counterfeiting information remains, typical surface materials display words, and stickers with leaving words will also appear on the surface of the substrate. Sometimes solid VOID or VOIDOPEN or custom pattern (also known as positive version) remains on the surface of the object to be attached, and sometimes hollow VOID or VOIDOPEN or customized pattern (also known as negative version) remains on the surface of the object to be attached. After the label is torn off, the characters on the surface are damaged and cannot be restored, so as to indicate that it is opened, which effectively deters illegal acts such as robbery and smuggling.