Mug printing is one of the staples of sublimation printing.
Ceramic mugs are the most commonly produced item using the sublimation printing process.
Sublimating a mug is a very simple process, but it is something we are often asked about.
Our handy how to press video can be viewed below-
You will need to create the artwork for you mug design on your computer.
Ideally use a good piece of photo editing software.
Popular software choices are Adobe Photoshop, Adobe Illustrator, Serif Affinity Photo or Serif Affinity Designer.
Sublimation mugs are usually 10/11oz.
We find a design template that is 20x8cm will allow for a full wrap design, starting from one side of the handle to the other.
The 20x8cm template will allow up to 3 mug design templates to fit on to a single A4 sheet.
It is advised to preheat your blank sublimation mug to ensure heat is within the ceramic before pressing.
Why is preheating the mug important?
How to preheat your mug?
Mugs can be preheated in a number of ways we use the following methods depending on the particular job we are undertaking-
Take your printed paper transfer and trim to 20x8cm with a pair of scissors.
Wrap the paper around the outside of the mug starting from one side of the handle and working around to the other.
Secure in place using heat tape.
The paper wrap should be tight against the mug surface to avoid creasing when it is placed in the heat press.
10/11oz sublimation mugs are usually pressed at a firm pressure for 180 seconds (3 minutes) at 180c / 355F.
This can differ from mug to mug and it is always advised to check with the manufacturer or supplier of your sublimation mugs first.
For our example we have used a set of our own 11oz sublimation mugs. We recommend these are pressed at:
Temperature: 180c
Time: 180 seconds
Pressure: Medium
Generally we find the following process works well;
Turn on your mug heat press.
Set the temperature and time.
Allow it to come up to temperature with a blank (no paper wrap) sublimation mug in the press (this helps to protect the heating blanket / element and reduces wear).
When the heat press is at the correct temperature remove the blank mug, and insert a mug which has been wrapped with the printed paper design.
Try to keep your design away from the edges (top, bottom and handle) of the mug.
We try to keep 5-10mm away from all edges of the mug.
This is because the mugs generally have a very slight taper at the top and bottom, so pressure from the heat press is uneven on these areas.
Furthermore the heating element of the heat press is generally weaker at the edges.
As a result you tend to find a poorer image transfer in these areas.
Mugs can be preheated in a number of ways we use the following methods depending on the particular job we are undertaking-
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