Mark plastic

Reliable coding with perfect print image

Coding plastic

Best printing results in all formats

When marking plastic films, the most important thing is a durable and perfectly legible print image. It must not rub off and often has to contain a lot of information, so sometimes the size of the printed image is crucial.

Diagraph thermal transfer printers come in a variety of print areas up to 8 inches wide, the largest in the world.

A wide range of color ribbons is available for the various types of plastic, which we will be happy to test for you on your packaging material. Many customers also attest to our printers' outstanding print image.


Advantages with Diagraph

What you can expect

Contact pressure

Thermal transfer printer with the largest print area on the market

Razor-sharp, high-contrast print image

Printing on all plastics

Suitable for harsh production environment

Wide range of ribbons

Database connection

Printing in clocked and continuous mode

Contactless printing

Print up to 8 lines

Printing in small font, large font or high speed

Printing on all plastics

Suitable for harsh production environment

Wide range of inks

Database connection

Product images

Various printing systems can be used for marking plastics. You can see some examples here:

Our marking systems are suitable for many plastics

Some examples

Contact pressure

Thermoforming sheets



Tubular bag

... and much more ...

Contactless printing

Plastic parts

Cables and pipes

Lids and closures

Filled plastic containers

... and much more ...

What our customers say


Production output has increased because there is less printer-related downtime.

I would definitely recommend Diagraph and the Allen NGT model line to other packagers.

Nigel Robertshaw, Technical & Operations Manager at Country Products, Tockwith York, Yorkshire


For the marking in the new line came only a Hitachi-
printers, as we have only had good experiences with them so far.
have made.

Matthias Säfken, Team Leader Maintenance, DMK, Edewecht

herbthäuser logo

With our old printer, we kept getting misprints with missing characters or smudged imprints.

Since we have been using the Diagraph printer, the imprints of the best-before date and lot number are always excellent.

Markus Lutz, Technical Manager, Herbsthäuser Brewery, Bad Mergentheim, Germany

Possible applications from practice

Play Video

Thermal transfer printing on tubular bags

Thermal transfer printers are frequently used in the marking of plastic films for tubular bag packaging. With its large and high-resolution print image, a lot of information can be applied in the best quality.

Our Allen NGT thermal transfer printers are ideally suited for this task.

Play Video

Inkjet printing replaces blind embossing on sachets

For Björn Ikes, Head of Application Egineering / R&D at RCP Ranstadt, there are three main reasons why they chose the TJ500:

  1. The comparatively low purchase price.
  2. The wide color range of ink cartridges.
  3. The ease of installation and operation.

Download case study free of charge

This is what convinced RCP Ranstadt of the TJ500

  • The low purchase price
  • The wide color range of ink cartridges
  • The ease of installation and operation
ALLENCOD-2105-118 - Allen Coding-Anwenderberichte-2021-06-16-14-00-RCP_Ranstadt-WEB_Seite_1
Anwenderbericht-Hitachi UX-DMK-Group_2020_Seite_1

Download DMK Group case study free of charge

This is what convinced DMK of the Hitachi UX and Diagraph

  • The high printing speed
  • The IP65 protection class
  • The simple operation


ITW Diagraph GmbH

Friedrich-Bergius-Ring 30

97076 Würzburg


Tel. +49 931 25076 0

Fax +49 931 25076 50

[email protected]


Tel. +49 931 25076 911

[email protected]


Monday till Thursday

08:00 - 17:00


08:00 - 14:00

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