The best shirt for infusible ink is a white or light-coloured 100% polyester shirt. Infusible ink dye bonds with polyester fibers under heat, producing a permanent print that does not crack or peel. Poly-blend shirts work if polyester content is 65% or higher, but print quality and durability drop as polyester percentage drops. Dark shirts and 100% cotton shirts do not work for direct infusible ink transfers.
Infusible Ink is a transfer method that bonds dye directly into compatible fabric fibers using heat and pressure. Because the dye becomes part of the fabric rather than sitting on top of it, the design does not crack, peel, or fade the way iron-on transfers can. Getting the best result depends almost entirely on choosing the right shirt. This guide explains which fabrics work, which do not, and what happens at each polyester percentage so you can make the right choice before you start.
The polyester content of the shirt is the single most important factor in how well infusible ink transfers and how long the result lasts. Use this table to check whether a shirt will work before you buy it.
Fabric Composition
Print Quality
Durability
Recommended?
100% Polyester
Sharp, full colour, accurate tones
Permanent. Lasts the life of the shirt.
Yes. Best choice.
80%+ Polyester blend
Good quality, close to 100% poly
Very durable. Slight softness from blend.
Yes. Good choice.
65/35 Polyester-Cotton
Faded, washed-out appearance
Fades after several washes
Acceptable if nothing else is available
40/60 Polyester-Cotton
Very faded, barely visible
Disappears after about 3 washes
Not recommended
Tri-blend (60%+ poly)
Depends on poly content
Durable if polyester is majority
Acceptable if poly is 60%+
100% Cotton
Ink does not bond
Print will not transfer
Do not use
Dark-coloured shirts (any fabric)
Ink is invisible on dark fabric
N/A
Do not use
What Is Infusible Ink?
Infusible Ink is a transfer product that bonds dye permanently into compatible polyester or polymer-coated fabric using a heat press or EasyPress. When heat is applied, the solid dye converts to gas and infuses directly into the fabric fibers. The result is a design that feels like part of the fabric, with no raised texture and no layer sitting on the surface. The design will not crack, peel, or tear off with normal use and washing.
You can use Infusible Ink in two forms: pre-printed transfer sheets or Infusible Ink pens and markers. Transfer sheets come with the design already printed and ready to cut and weed. Infusible Ink pens let you draw or colour a design directly onto copy paper, which is then transferred to the shirt using a heat press.
How to Use Infusible Ink Transfer Sheets
Follow these steps when using pre-printed infusible ink transfer sheets on a polyester shirt.
1 Prepare and Cut the Design
Open your design in the cutting machine software. Set the dimensions for the area where you plan to place the design. Mirror the image before cutting. This step is essential because the sheet is pressed face-down onto the shirt.
Tip: If you skip mirroring, the design will transfer backwards. Check that mirror is selected before sending the design to cut.
2 Load and Cut the Sheet
Place the infusible ink sheet on the cutting mat with the liner side down. Load it into the cutting machine. Set the machine to the infusible ink material setting. Cut the design.
3 Weed the Excess
Use a weeder, tweezers, or weeding pen to remove all the excess infusible ink sheet from around and inside the design. Only the design should remain on the carrier liner after weeding.
4 Pre-press and Prepare the Shirt
Place the polyester shirt on the heat press or EasyPress mat. Insert a piece of cardstock between the front and back layers of the shirt to prevent the dye from transferring through to the back. Pre-press for 5 to 10 seconds to remove moisture and creases.
Tip: Moisture in the fabric causes patchy or uneven ink transfer. The pre-press step is one of the most commonly skipped steps and one of the biggest causes of poor results.
5 Position and Press
Place the infusible ink design face-down on the shirt where you want it. Place butcher paper over the top. Press at 385 to 400°F (195 to 205°C) with firm pressure for 40 to 60 seconds. Do not move the press during this time.
Tip: Use butcher paper above and below the design area to protect the heat press plate and prevent ink from transferring to the back of the shirt.
6 Remove the Carrier Sheet
Remove the press immediately. Carefully remove the butcher paper. Peel the carrier sheet from the shirt while it is still hot. The design is now permanently fused into the fabric.
Infusible Ink Temperature and Time Reference
Using the correct temperature, time, and pressure is critical. Too low and the ink does not fully transfer. Too high and the fabric may scorch.
Fabric
Temperature
Time
Pressure
100% Polyester
385 to 400°F (195 to 205°C)
40 to 60 seconds
Firm
80%+ Polyester blend
385 to 400°F
40 to 60 seconds
Firm
65/35 Polyester-Cotton
385°F
40 seconds
Firm
Always use butcher paper between the transfer sheet and the heat press plate, and between the design area and the back layer of the shirt. This prevents ink from bleeding through or staining the press plate.
Infusible Ink Pens and Markers
Infusible Ink pens and markers give you the option to draw or colour a design by hand rather than using a printed transfer sheet. You draw or colour your design onto a piece of copy paper using the infusible ink markers. Once the design is complete, you transfer it onto the polyester shirt using a heat press the same way you would a transfer sheet.
The same fabric rules apply. Pens and markers only work on polyester or polyester-blend fabrics with a high polyester content, and only on white or light-coloured shirts. The ink still needs polyester fibers to bond with under heat.
What Shirt Is Best for Infusible Ink?
A 100% polyester white shirt gives the best results with infusible ink. The polyester fibers are the only material that chemically bonds with infusible ink dye when heat is applied. On a 100% polyester shirt, the dye transfers completely, the colours are fully accurate, and the print is permanent.
When 100% polyester is not available, look for a shirt with more polyester than any other fiber. A 20/80 cotton-polyester blend gives better results than a 50/50 blend. A white or very light-coloured shirt will always produce better results than a coloured shirt because the dye is transparent and shows correctly on a light background.
Use white or very light-coloured shirts for infusible ink. The dye is transparent. On a white shirt, the dye produces the full intended colour. On a coloured shirt, the shirt colour mixes with the dye and distorts the result. The darker the shirt, the less visible the design.
What Happens at Each Polyester Percentage
Does infusible ink work on a tri-blend shirt?
Tri-blend shirts are made with cotton, polyester, and rayon. Infusible ink works on tri-blend shirts only if the polyester content is above 60%. If the polyester percentage is below this, the ink will not bond well and the colours will appear faded. Check the fabric label before buying a tri-blend shirt for infusible ink. The shirt must also be white or light-coloured, as the dye is transparent and will not show on dark fabric.
Infusible ink on a 40/60 polyester-cotton shirt
A 40/60 shirt (40% polyester, 60% cotton) will accept the infusible ink transfer, but the results are poor. The print will look faded from the start because only the polyester fibers absorb the dye. After about three washes, the design will barely be visible or will have faded completely. A 40/60 blend is not recommended for infusible ink projects.
Infusible ink on a 65/35 polyester-cotton shirt
A 65/35 shirt gives better results than a 40/60 blend, but the print will still look softer and less saturated than on 100% polyester. The colours will appear faded, as if the shirt has already been washed several times. This blend is acceptable if nothing better is available, but the print will not be as sharp or long-lasting as it would be on a higher polyester content fabric.
Fabrics That Do Not Work with Infusible Ink
Can you use infusible ink on 100% cotton shirts?
Infusible ink does not work on 100% cotton. The infusible ink process requires polyester fibers for the dye to bond with under heat. Cotton fibers do not have the right chemical structure to accept the ink. Pressing infusible ink onto a cotton shirt will produce a very faded or invisible result that will wash out almost immediately.
If you want to apply infusible ink to a cotton shirt, you can use a Cotton Infusible Ink Solution spray. This spray creates a polyester-like coating on the fabric surface that allows the ink to transfer. However, the print quality and durability will not be as strong as on a true polyester shirt. Spray the area lightly with a fine mist, let it dry completely, and then transfer the infusible ink design.
Can you use black and dark-coloured Fabrics with infusible ink?
Infusible ink does not work directly on dark-coloured shirts. The dye is transparent, so on a dark fabric it is invisible after pressing. The design simply does not show against the dark background.
One workaround is to apply white heat transfer vinyl (HTV) to the dark shirt first as a base layer. The infusible ink design is then pressed onto the white HTV layer, where it shows up clearly. This requires applying the HTV first following standard HTV pressing instructions, then pressing the infusible ink design onto the white HTV surface.
Note: White HTV Workaround for Dark Shirts
The dark shirt workaround using white HTV as a base layer produces results that hold up differently than a direct polyester transfer. The design sits on the HTV layer, not directly in the fabric fibers, so long-term durability is more similar to standard HTV than to a true infusible ink transfer.
Care Instructions for Infusible Ink Shirts
Infusible ink designs are significantly more durable than iron-on transfers, but correct washing still matters.
Wait 24 hours before the first wash. The ink continues to settle and bond after pressing. Washing too soon can affect the final colour.
Wash inside out in cold water. Turn the garment inside out to reduce friction on the design. Cold water protects the dye.
Use a mild detergent only. Avoid bleach. Even though infusible ink is more durable than HTV, bleach can still affect the dye colours over time.
Air dry or use low heat in the dryer. Extremely high dryer heat over many cycles can affect the polyester fabric itself. Air drying extends the life of both the garment and the design.
Do not dry clean. The solvents used in dry cleaning can affect the infusible ink dye.
Frequently Asked Questions
The best shirt for infusible ink is a white or light-coloured 100% polyester shirt. Polyester fibers are the only material that bonds chemically with infusible ink dye when heat is applied. On 100% polyester, the print is permanent, sharp, and holds its colour through repeated washing.
No. Infusible ink does not work on 100% cotton. The process requires polyester or polymer-coated fabric for the dye to bond under heat. On cotton, the ink either does not transfer or produces a very faded result that disappears after a few washes. Use a cotton infusible ink solution spray if you must work with cotton fabric.
100% polyester gives the best results. Blends with 65% polyester or higher are acceptable, though the print quality will be softer and less saturated. Blends with less than 65% polyester produce noticeably faded results and poor durability. A 40/60 blend gives very poor results and is not recommended.
Infusible ink does not work directly on dark shirts. The dye is transparent and invisible against a dark background. The workaround is to apply white heat transfer vinyl as a base layer on the dark shirt, then press the infusible ink design onto the white HTV surface where it will show up clearly.
Press at 385 to 400 degrees F (195 to 205 degrees C) with firm pressure for 40 to 60 seconds. Always use butcher paper between the transfer sheet and the heat press plate, and between the design area and the back layer of the shirt. Do not move the press during pressing.
On 100% polyester shirts, infusible ink is permanent. The dye bonds with the fabric fibers and does not crack, peel, or fade with normal washing and care. It lasts the full life of the garment. On poly-blend shirts, durability is proportional to the polyester content. Lower polyester blends show fading faster.
No. Because infusible ink dye infuses directly into the polyester fabric fibers under heat, there is no layer sitting on top of the fabric that can crack or peel. This is the main advantage over iron-on transfers and HTV, which sit on the fabric surface. The design feels like part of the shirt.
Household irons are generally not recommended for infusible ink because they do not distribute heat evenly and most cannot reach the 385 to 400 degrees F required for a complete transfer. An EasyPress Mini or a standard heat press gives much more consistent results. If you must use an iron, use the highest cotton setting with no steam and press firmly for the full time.
Wrapping Up
The best shirt for infusible ink is a white 100% polyester shirt. The polyester fibers bond permanently with the infusible ink dye under heat, producing a print that will not crack, peel, or fade. Light-coloured poly-blend shirts with 65% polyester or higher also give acceptable results. Avoid cotton-heavy blends and dark shirts for direct infusible ink transfers.
Press at 385 to 400 degrees F for 40 to 60 seconds with firm pressure. Use butcher paper to protect the press plate, pre-press the shirt to remove moisture, and insert cardstock between the shirt layers before pressing.
Shop TeckWrap Craft sublimation paper and infusible ink accessories.
I love the quality of tech wrap. It cuts in weeds so nicely I got the bundle so I could have a little bit of all the different colors. It’s a great great product although when I did get my kit, they didn’t put my weed pen and my slap bracelets. I didn’t get those little extras. They forgot to put it in my package and I also got the other tech wrap bundle, which is the shiny iridescent bubble free bundle that comes with the weeding pen slap bracelets in the hanger so you can put all your rolls inside the hanger hanging on the back of your door. I did get that stuff in my bundle. I would definitely recommend tech wrap. It’s a great quality and priced decently.
First and last time I tried this. I followed instructions, watched videos and it still did not work. It would not come off the transfer mask and totally ruined the print and the garment so now I have to buy a new one
