Digi-Print Sub-Block Custom Heat Transfers


Digi-Print Sub-Block is a PVC-free, digital transfer process which offers full-colour (CMYK) custom heat transfers which allows you to produce vivid, durable heat transfers that are also resistant to subli-dye migration.



Digi-Print Sub-Block is a PVC-free, digital transfer process which offers full-colour (CMYK) custom heat transfers which allows you to produce vivid, durable heat transfers that are also resistant to subli-dye migration.


Digi-Print Sub-Block Overview

Offers excellent opacity and colour reproduction whilst also being specifically designed to provide a solid barrier to polyester dye migration, which effectively prevents “bleed through” from sublimated dyes passing through the garment and into the design which can occur during the heat press process.  It’s designed to be applied to 100% polyester, as well as polyester blends which makes it great for workwear, sportswear and leisurewear requirements where dye migration may be an issue.

Note: Due to the production process, a 2mm keyline is required around the intended design, although this can be coloured to match closely to the garment.  Alternatively, a “bleed edge” can be added if the design allows.


Production Leadtimes: Digi-Print Sub-Block Heat Transfers

Sub-Block custom heat transfers are manufactured in the UK and are usually despatched within TWO working days of confirmation of the artwork and colour references.


Artwork Requirements

For full-colour heat transfers, such as Subli-Blocking UltraColour, requires a line-based vector graphic (usually as an .EPS or .AI file format) with any text saved as outlines, or a raster file that is at least 300dpi (dots per inch) at the size required and produced using CMYK colours. If the design contains fine detail (i.e. less than 2mm in line thickness) a line-based vector graphic would be required to ensure that it’s accurately reproduced.

If you aren’t able to provide the artwork in the correct format, we don’t offer direct recommendations but many of our customers use Net Digitising (https://netdigitizing.co.uk/artwork-services/), Digitising Mart (https://digitisingmart.co.uk/vectorart.php) or David Sharp (https://davidsharp.co.uk/our-services/) to have block-colour designs, and designs with a limited amount of shading, redrawn as line-based vector graphics.


Recommended Fabrics:

  • 100% Cotton
  • Poly/Cotton blends
  • 100% Polyester*
    * Testing recommended on coated or heavily dyed polyester

Recommended Accessories:

Are you wanting to buy a reliable heat press with the right features for your needs and not sure of what to buy? If so, read through our UK heat press guide for information based on over 30 years of experience in supplying heat presses.


Application Instructions:

  • Developed to be applied with a heat press – Not intended for use with a domestic iron.
  • Temp: 150°C
  • Time: 10 seconds
  • Pressure: Medium (40-50psi)
  • Peel: Cold

For advice on how to correctly apply heat transfers, view our heat transfer press application tips.

After-Care Instructions:

  • For best results, wash garment inside out.
  • Allow 24 hours before first wash.
  • Machine wash warm up to 40°C.
  • Wash using mild detergent.
  • Tumble dry at a normal dryer setting on household machines.
  • Do not dry clean.
  • Do not use bleach.
  • Can be directly ironed onto reverse (without steam).


What Are Custom Transfers?

Custom transfers are printed designs for applying to substrates, primarily garments such as t-shirts, hoodies and polo shirts using a heat press machine to bond the custom heat transfer to the fabric.

Custom-made, heat transfers can be applied to almost any type of fabric and offer a wide variety of finishes, including block-colour, plastisol ink-based screen transfers, and full-colour photo-quality DST custom heat transfers. Subli-dye blockers can also be added to reduce the risk of dye migration on fabrics susceptible to it, such as performance polyester.


Why Use Custom Transfers?

Custom transfers are a popular alternative to silk-screen printing as it’s a much more cost-effective method of printing in low quantities and also gives the ability to print on demand as our custom transfers are manufactured so they are ready to be heat pressed straight onto the garment fabric.



Looking For More Information?

If you're new to heat pressing, or are looking for more advice and support, we'd recommend taking a look at our Heat Transfer Help Guides or our Heat Press Blog to see if we can help you to find the answers that you're looking for.

Our Heat Transfer Help Guides contain lots of useful tips regarding heat press machines, how to choose the best product for your needs and some great application tips! In addition, our Heat Transfer Blog will be regularly updated with new product information.

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