The security bags are used for cash shipment in banks and bulk in CIT companies.
For declared value shipments in postal service.
For safe keeping of pieces of evidence in police station.
1)It can be written in the writable area by special ink
2)Each bag has different Serial number.
3)Micro printing in each side of the edge.
4)Yellow ink will change to Black if the temperature reaches 85℃
5)Yellow color area will dissolve in water.
6)The bag will not recover once it is opened.