These inks change appearance due to a physical pressure or chemical agent.

Types of inks

• Erasable
• Coin/Metal-reactive
  
  • Opaque
  • Transparent
• Solvent-reactive
• Sodium Hypochlorite-reactive

Application features

They also offer a wide variety of types. Reactions may be triggered by physical or chemical agents. Depending on the formulation, they are used in all kinds of documents and substrates.

Security level
Medium