WHAT IS: Printed Circuit Board Labelling
Printed circuit boards (PCBs) are the foundation of most electronic devices—from computers and printers to home entertainment systems, smart appliances, and mobile phones. Ensuring accurate and durable identification on PCBs is critical for quality control, traceability, and compliance across the electronics manufacturing process.
Key Benefits
- Excellent resistance to soldering processes and cleaning solvents
- High print precision for very small characters and barcodes
- Inks formulated without halogenated substances
Labeling Printed Circuit Boards
To secure long-term traceability, PCBs are typically labeled or barcoded with essential manufacturing information, including:
- Board manufacturing date
- Component lot numbers
- Test and inspection data
Poor-quality or degraded printing can lead to significant issues in production monitoring, logistics, and integration of the PCB into final products. Ensuring perfect legibility and durability is therefore crucial in selecting a suitable print solution.
Beyond the PCB itself, many miniature components—such as capacitors, resistors, and transistors—also require precise identification. These markings must remain readable at extremely small sizes and withstand:
- High soldering temperatures
- Aggressive fluxes
- Acidic cleaning agents
Regulatory Compliance
inkanto Thermal Transfer ribbons include solutions that support compliance with:
- EU Directive 2011/65/EC (RoHS)
- EU Directive 2002/96/EC (WEEE)
- Halogen compound restrictions
- UL standards for printed label durability
Why Use Thermal Transfer Technology for PCB Labeling?
Thermal Transfer Printing for PCBs
Thermal Transfer printing is the most reliable method for producing highly detailed, unit-level identification on PCB labels. The high resolution of thermal printheads ensures exceptionally sharp rendering of:
- 1D and 2D barcodes (vertical, horizontal, DataMatrix, etc.)
- Small alphanumeric characters
- Logos and symbols on miniature label formats
ARMOR-IIMAK Resin inks (AXR family), paired with durable synthetic label materials such as polyester, polyamide, polypropylene, or polyimide, deliver:
- Superior print sharpness
- Outstanding resistance to heat, abrasion, and aggressive solvents
- Long-term durability for harsh electronics manufacturing environments
For this application, we recommend the following products: