Pad printing is a printing method that transfers logos, text and images onto small and uneven objects: pens, lighters, bottles, keys, tools and many promotional items. In this guide we explain what pad printing is, how it works step by step, which parts a pad printing machine has and what you need to print with it yourself.

What is pad printing?

Pad printing is an indirect gravure printing process. The design is not printed straight onto the object. It is first picked up from an engraved printing plate, the cliché, by a soft silicone pad. The pad then releases the ink onto the object.

The big advantage: the silicone pad is elastic and adapts to the shape of the object. That is why pad printing also works on curved, concave or textured surfaces, where screen printing or digital printing is difficult or not possible at all.

How does pad printing work? Step by step

The process is basically the same on a simple manual machine and on an industrial machine:

  1. The cliché: the design is etched or engraved into a printing plate as a recess. This plate is called the cliché.
  2. Inking: the cliché is covered with ink. A doctor blade or a doctor ring wipes off the excess ink, so ink stays only in the recessed parts of the design.
  3. Pick-up: the silicone pad is pressed onto the cliché and picks up the ink from the recesses.
  4. Transfer: the pad is pressed onto the object, changes shape and releases the whole design.
  5. Drying: the thin ink layer dries quickly. For multicolour designs, each colour uses its own cliché and the process is repeated.

The parts of a pad printing machine

Cliché

The cliché carries the design. There are steel clichés for very long runs and photopolymer clichés, which you can make yourself in a small workshop with a UV exposure unit. For beginners and smaller runs, photopolymer clichés are the easiest choice.

Ink cup or ink tray

On machines with a sealed ink cup, the ink sits in a cup that rests on the cliché with a ceramic ring. As the cup slides, the ring wipes off the excess ink. Because the ink has very little contact with air, it dries out more slowly and stays even for longer. On open systems, the ink sits in a tray and is wiped off with a doctor blade.

Pad

The pad is made of silicone and comes in many shapes, sizes and hardnesses. The shape depends on the object and the design: round pads suit many standard jobs, long pads suit narrow surfaces such as pens. Softer pads adapt better to strongly curved surfaces, harder pads give sharper fine details.

Pad printing ink

Pad printing inks are matched to the material of the object, for example plastic, glass or metal. Thinner brings the ink to the right consistency.

Which materials can you pad print on?

Pad printing works on many materials, as long as ink and material match:

  • Plastics, for example pens, housings and packaging
  • Glass and ceramics
  • Metal
  • Wood

Some plastics that ink does not stick to well need a pre-treatment before printing. With new materials, always make a test print first and check the adhesion.

Advantages and limits of pad printing

Advantages

  • Uneven surfaces: printing on curved, concave or textured objects.
  • Fine details: small text and logos come out sharp.
  • Fast work: once the machine is set up, you can print many identical parts quickly.
  • Cost-effective for series: with many small parts carrying the same design, the cost per piece is low.

Limits

  • Small print area: pad printing suits small designs, not large areas such as the back of a T-shirt or posters.
  • Thin ink layer: on dark backgrounds, light colours cover less than in screen printing.
  • One colour per pass: multicolour designs need a separate cliché and a separate pass for each colour.

If you are torn between pad printing and screen printing, our comparison screen printing or pad printing will help you choose.

Where is pad printing used?

  • Promotional items: pens, keyrings, lighters, USB sticks
  • Cosmetics: logos and decorations on bottles, jars and caps
  • Electronics: markings on keys, switches and small devices
  • Industry: markings and logos on tools and technical parts
  • Sport and leisure: golf balls, mugs, toys

Pad printing yourself: what you need

For small runs in your own workshop, a manual pad printing machine is enough. With it you can print promotional items, prototypes or small series yourself, without hiring a print shop. You need:

If something goes wrong while printing, such as blurred edges, poor adhesion or incomplete transfer, you will find the most common causes in our pad printing troubleshooting guide.

Video tutorial

Frequently asked questions about pad printing

What is the difference between pad printing and screen printing?

In screen printing, the ink is pushed through a mesh straight onto the object. This suits flat or slightly curved surfaces and larger designs. In pad printing, a silicone pad transfers the ink. This suits small, uneven objects and fine details.

Can you pad print in several colours?

Yes. Each colour needs its own cliché and its own pass. The colours are printed one after the other and lined up exactly on top of each other.

Can you do pad printing at home?

Yes. With a manual pad printing machine and photopolymer clichés, you can print small series yourself in a small workshop. What matters is a stable workbench, the right ink for your material and a few test prints at the start.