Choosing the Right Variable Data Printing Type: Thermal Inkjet vs. Laser Marking

Choosing the Right Variable Data Printing Type: Thermal Inkjet vs. Laser Marking

I. The Core Value of Variable Data Printing
Variable data printing (VDP) refers to technology that dynamically uniquely identifies each individual product during the continuous production process. This includes:

Basic information: Production date, batch number, expiration date

Advanced identification: Serial number, QR code, barcode, UDI (Unique Device Identifier)

Anti-counterfeiting and traceability: Random encryption code, logistics tracking code

Core Function: Enables full product lifecycle traceability, anti-counterfeiting and anti-channelling, and automated process management

II. Top Industries Requiring VDP

III. Technology Face-Off: TIJ vs. Laser Marking

Thermal Inkjet (TIJ) Printing

• Key Advantages:
  ✅ Works on non-porous surfaces: Plastics, films, coated cartons
  ✅ Color printing: Supports multi-color marks (e.g., promotions)
  ✅ High speed & low cost: Up to 100m/min, ~$0.0015 per label
  ✅ Instant drying: Quick-dry ink prevents smudging

 Laser Marking

• Key Advantages:
  ✅ Permanent marks: Etches metal/glass/ceramics via oxidation/ablation
  ✅ Zero consumables: 70%+ lower operating costs (no ink/tags)
  ✅ Extreme environment proof: Stable at -40°C to 200°C; resists oil/chemicals
  ✅ Micron-level precision: 0.01mm line width (ideal for micro-components)

IV. Industry-Specific Technology Selection Guide

>> Prioritize TIJ for:

• Food packaging (dates on plastic films/boxes)

• Logistics (shipping labels/pallet tags)

• FMCG products (promo codes on bottles)

• Pharma outer packaging (batch numbers on cartons)

>> Prioritize Laser for:

• Automotive components (VIN on engine blocks)

• Medical devices (UDI on surgical steel)

• Electronics (micro-QR codes on PCBs)

• Metal tools (anti-counterfeit engraving)