WTA informs: Pad Printing – Precision on Uneven Surfaces

Pad printing is a proven process for precisely printing on shaped, uneven, or textured surfaces.

· 2 min read

Its strength lies in its ability to apply permanently adhesive markings to a wide variety of materials – from plastics to metals to elastomers. In addition to technical precision, the process's environmental friendliness is also becoming increasingly important.

Technology in Detail:

In the printing process, the pad is a flexible silicone cushion that transfers the print motif from an engraved cliché to the component. The elasticity and hardness of the pad are individually selected to ensure even load distribution. This allows for clean and gentle printing even on complex geometries.

Environmental Protection in Pad Printing:

 

Traditionally, pad printing uses solvent-based inks, whose emissions into the environment pose a challenge. Modern approaches are addressing this:

  • Closed ink and cleaning agent systems significantly reduce the release of volatile organic compounds (VOCs).
  • The trend is toward low-emission inks, e.g., water-based inks, and solvent-reduced systems
  • Many companies operate according to ISO 14001, an internationally recognized standard for environmental management. This requires the continuous reduction of environmental impacts, the careful use of resources, and compliance with legal environmental regulations.

Future developments in pad printing:

The industry is constantly evolving to meet ecological and technical requirements:

  • UV-curing inks offer a solvent-free alternative with high durability.
  • Digitalized printing processes improve material efficiency and reduce waste.
  • Recyclable inks and sustainable pad materials are the focus of research.
  • Energy-efficient machines help reduce the CO₂ footprint.

Conclusion:

Pad printing remains a key process for industrial marking – with a growing focus on sustainability and resource conservation. The reduction of pollutants and compliance with environmental standards such as ISO 14001 demonstrate that even traditional printing techniques can be made more environmentally friendly.

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