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How To Sublimate Tote Bags

The sublimation print process is a very popular method for producing printed or custom designed tote bags and shopping bags.

Sublimating offers a very professional finish with a relatively small investment.

Blank sublimation tote bags are available in white variety of fabric finishes, designs and colours.

Typically sublimation tote bags are white or pale / natural coloured to allow the best colour reproduction.

They should be made from a polyester based material and come in a range of fabric styles. Our example is produced using a white coloured canvas effect cover.

1) Design Process

You will need to create the artwork for you 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.

Check the size of your cushion cover (height and width) to ascertain the size of the design required.

In some instances an A3 size printer is beneficial, but smaller A4 size designs can be used depending on the coverage required.

2) Preparing your tote bag

Your tote bag should be dry and clean.

Inspect it before pressing as you may find loose threads or stitching from manufacturing process.

Use a lint roller to remove any excess thread or to remove unwanted bobbling on the material.

Place the tote bag on to the rubber base of your heat press and adjust it to ensure it is as flat as possible.

It is advised to pre-press the tote bag by closing the heat press for 5-10 seconds.

This essentially irons the cover to flatten it and remove any creasing.

3) Preparing your printed design

There are different thoughts and opinions on the best way to prepare the paper transfer print.

Ink Experts advise our customers to trim or cut every edge of the paper before pressing.

This because it is common for the edges of the paper to get caught by the printing head during printing.

As a result ink can remain on the papers edges which in turn will transfer onto your cushion cover.

Cutting the edges off the paper ensures a clean print.

We advise to pad the inside of the cover with a PTFE heat press pillow this prevent fading to the middle of the cover where the pressure can be decreased due to the thickness of the edges / seams.

Use heat tape to secure the paper transfer in position on the cushion cover.

4) Pressing your tote bag

For our example we have used one of our canvas effect polyester linen tot bags. We recommend these are pressed at:

Temperature: 200c
Time: 70 seconds
Pressure: Medium
PTFE protection sheet: Yes

Not all tote bags use the same heat press temperature and time.
Ink Experts advise customers to contact the supplier of your tote bag blank to confirm their recommended heat press settings.

The temperature and time varies due to the GSM or weight of the fabric and the material type (100% polyester or a blended polycotton material)

Step by Step Method

  • Turn on your heat press.
  • Set the temperature and time.
  • Allow it to come up to temperature.
  • While the heat press is heating up you can prepare your tote bag.
  • Remove the rubber base from your heat press and lay the tote bag on to it.
  • Adjust the fabric to remove as many creases as possible.
  • Once at temperature carefully place the rubber mat and tote bag on to the heat press base.
  • Pre-press the tote bag for 5-10 seconds.
  • Apply your paper transfer design and secure in place using heat resistant tape (its advised to tape each corner).
  • If possible use a PTFE heat press pillow to pad the cover and prevent fading during the pressing process.
  • Close your press and heat press for the desired time.
  • When the timer expires open the press and carefully remove the paper transfer in one smooth motion.
  • Remove the tote bag from your heat press and allow to cool.

Tips and tricks

Trimming the edges of the paper as mentioned above will ensure the paper is clean.

Where possible the edges can be carefully torn.

Doing this leaves a softer edge of the paper which reduces indented outline of the paper when heat pressing the tote bag.

Reduce the risk of scorching your fabric by using a PTFE protection sheet.
The PTFE protection sheet can be laid over the paper transfer and tote bag when heat pressing.

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