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TID-07 Induction Heat-Seal Varnish: Secure Sealing and High Resistance for Packaging

The TID-07 Induction Heat-Seal Varnish is a high-performance acrylic coating specifically designed for flexographic applications requiring flawless induction sealing. Formulated to provide exceptional adhesion across a wide range of substrates, including PVC, PET, polystyrene (PS), aluminum, and polyamide (PA), this varnish ensures a secure and hermetic closure. Its advanced technology prevents blocking, preserving print quality and the structural integrity of the packaging throughout the production and storage process, making it the ideal solution for demanding food and technical packaging.

Operational Machine Advantages

  • Universal heat-sealing capacity: Provides highly reliable and consistent induction sealing on PVC, PET, PS, aluminum, and PA.
  • Superior anti-blocking properties: Prevents unwanted adhesion of reels or sheets during stacking, rewinding, and handling on high-speed lines.
  • High mechanical and chemical resistance: Exhibits outstanding behavior after the sealing process, resisting friction and maintaining closure integrity.
  • Universal printing compatibility: Excellent flexographic performance with great adhesion on plastic and metallic substrates, as well as over previous ink layers.

Technical Specifications

PropertyDescription / Values
Chemical Nature Acrylic Varnish
Printing System Flexography
Compatible Substrates PVC, PET, Polystyrene (PS), Aluminum, Polyamide (PA)
Sealing Type Thermal Induction
Resistance High post-seal mechanical and chemical resistance
Food Regulation EU Reg. 1935/2004 and EU Reg. 2023/2006 (GMP)

Logistics, Handling, and Technical Considerations

  • Induction parameters: It is essential to adjust the power, time, and machine pressure according to the nature of the substrate and the packaging line specifications.
  • Line compatibility: Prior testing on base inks and layers is highly recommended to verify the correct application sequence.
  • Post-printing processes: Validate the varnish's resistance against subsequent processes such as die-cutting, folding, and mechanical friction.
  • Safety and Compliance: Food-grade formulation. Final compliance depends on the complete packaging structure and specific migration tests required for each end-use.
  • Validation: Establishing a joint validation plan with the customer is suggested to ensure mechanical performance, sealing quality, and migration levels.