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How Sublimation Printing Works: The Process Behind Our Mugs and Coasters

  • Writer: Beki
    Beki
  • Jun 22
  • 3 min read


Have you ever wondered how detailed artwork is transferred onto mugs and coasters with such vibrant colours and lasting quality?

The answer is a printing process called sublimation. It's the method we use to create our mugs, coasters, notebooks, clocks and more, featuring everything from majestic Barn Owls and colourful Kingfishers to charming Hedgehogs and iconic Highland Cows, Cats, Horses, and of course Dogs!

In this article, we'll explain how sublimation works and why it's such a popular choice for producing high-quality printed gifts.


What Is Sublimation Printing?

Sublimation is a specialist printing process that uses heat to permanently transfer a design onto a product.

Unlike vinyl stickers or surface printing, sublimation doesn't simply sit on top of the item. Instead, the ink becomes part of the coating itself, creating a smooth, durable finish that won't crack, peel or feel raised.

This makes sublimation ideal for producing detailed artwork with rich colours and fine details.


The Science Behind Sublimation

The word "sublimation" refers to a process where a substance changes directly from a solid into a gas without becoming a liquid first.

Special sublimation inks are printed onto transfer paper. When heat and pressure are applied, the ink turns into a gas and bonds with the specially coated surface of the mug or coaster.

As the item cools, the ink becomes permanently embedded within the coating.

The result is a crisp, vibrant image that becomes part of the product rather than simply sitting on top of it.


How We Create Our Designs

Every piece begins with artwork that has been carefully prepared for printing.

Whether it's a watercolour-style Red Kite soaring through the sky, a curious Fox, or one of our many Dog Breed designs, each design is created digitally before being printed onto specialist sublimation paper.

The design is then positioned onto the product and secured with heat proof tape before the heat transfer process begins.


Applying Heat and Pressure

Once the printed transfer is in place, the item is placed into a heat press. This can be flat, for coasters, notebooks and other flat pieces, or a cylinder for mugs and other curved items. For some items such as water bottles or coffee cannisters, which are too big for a mug press, we use a sublimation oven, and heat shrink wrap to apply the pressure,

The heat press applies a carefully controlled combination of:

  • Heat

  • Pressure

  • Time

These elements work together to activate the sublimation process and transfer the artwork onto the product.

During this stage, the sublimation ink changes into a gas and permanently bonds with the coating on the item.


Why Sublimation Produces Such Vibrant Colours

One of the biggest advantages of sublimation printing is the quality of the finished image.

Because the ink becomes part of the product's coating, colours appear bright, sharp and detailed. This is especially important for detailed prints, where subtle colour variations and fine details help bring each image to life.

From the vivid blues of a Kingfisher to the rich browns of a Pheasant or the distinctive markings of a tabby cat, sublimation allows artwork to be reproduced beautifully.


A Smooth, Professional Finish

Many people are surprised to discover that a sublimated design cannot be felt on the surface of the product.

That's because the image is infused into the coating rather than printed on top of it.

The result is:

  • A smooth finish

  • No peeling edges

  • No cracking

  • No raised texture

  • Long-lasting colour

This helps ensure that the artwork remains attractive even after regular use.


Why We Choose Sublimation for Our Mugs and Coasters

There are many printing methods available, but sublimation offers several advantages that make it particularly well suited to our wildlife-themed products.

These include:


Exceptional Detail

Watercolour artwork often contains delicate brush strokes and subtle shading. Photos have so many tiny details and colour differences. Sublimation captures these details clearly and accurately.


Vibrant Colour Reproduction

The process produces bright, vivid colours that showcase our designs beautifully.


Durability

Because the design becomes part of the product rather than sitting on the surface, it remains attractive over time.


Professional Quality

The finished products have a clean, polished appearance that makes them ideal for gifts and home use.


Frequently Asked Questions


Will the design peel off?

No. Sublimation creates a permanent bond between the ink and the product coating, so there are no stickers or layers that can peel away.


Can fine details be reproduced?

Yes. Sublimation is particularly good at reproducing detailed artwork and photographs.


Why are sublimated products popular as gifts?

The vibrant colours, professional finish and long-lasting quality make sublimated mugs and coasters popular choices for birthdays, Christmas, teacher gifts and other special occasions.


Please click here to see all our items!

 
 
 

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Rockways Designs - All Rights Reserved | Original Animal Art Mugs | Original Animal Art Watercolour Notebooks | Original Animal Art Thermal Travel Mugs | Original Animal Art Wall Clocks | Made in Powys

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