Security fibers are custom-designed parts which are added during the security paper production. It will be random embedded in the paper during manufacturing and un-copyable. UV fiber they can be found only under long-wave ultraviolet light.
Security fibers can be specified by several combined security features: multiple colors security fibers, invisible UV fibers, invisible IR responsiveness fibers.
advisory
The security of passports and certificates to avoid frauds and to perform customs control is very important.
The printing security postal stamps have several inbuilt security features in them to ensure that they are not easily counterfeited, although the design on the security postal stamps may appear to be very simple.
