Backing material is the foundational substrate for identity documents, engineered for security and longevity. Its physical, chemical, and optical properties are critical in resisting counterfeiting.
Common types include durable polycarbonates and highly secure papers incorporating elements like watermarks and security threads. These materials serve as the matrix for overt, covert, and forensic security features essential for authentication.
Driven by evolving threats, innovations focus on advanced composites, biometric integration, and dynamic features to maintain document integrity and trust in the digital age.
