Can You Heat Press Polyester and Spandex?[Described!]

Heat pressing fabric is hugely popular among craft lovers and youngsters. Because of comfort and low price, Spandex and polyester are their first choice too. So, you may want to heat press polyester and Spandex.

Can you heat press polyester and Spandex? Heat pressing polyester and Spandex is comparatively easier. Both of these fabrics can endure high heat. However, keep temperature below 300 F for saving garments from shrinking.

In this article, I’m going to cover how to heat press this item. So, stay with me to know more. Let’s start!

How to Heat Press Polyester and Spandex 

Keep temperature low

Temperature plays a vital role in heat pressing items. You can attach elements to garments at high temperatures perfectly. 

For this blend, utilize a little bit lower temperature than regular polyesters. It may shrink at temperatures above 300 degrees F. Therefore, utilize temperature around 280 degrees F. 

Pre shrink the fabric

Polyester is generally known for its shrink-resistant nature. But, this polyester and spandex blend may shrink at high temperatures. If you don’t pre-shrink this fabric, it may not look very pleasant after heat pressing.

So, how to shrink it? You can wash it with hot water. After washing, run dryer at a high temperature. 

Choose dye-sublimation printing

This process utilizes heat to transfer dye into fabrics, plastic, and paper. In the past, this technique was used in industrial settings only. Nowadays, it is widely used in the garment industry for heat pressing on synthetic blends.

First and foremost, the design is printed on a heat-resistant surface. The printing is done using water-based inks. Under high temperatures, this print is transferred to the surface of garment. 

This printing-

  • Ensures better finishing on garments.
  • Works perfectly on all surfaces.
  • Can print any color.
  • Lasts longer.

However, it works slowly compared to other procedures. Moreover, it can be somewhat costly.

Select heat press machine

To press on any fabric, you need to select a heat press machine. It has three components-

  • Pressurized handle
  • Printing plate
  • Worktable
  • Digital control panel

Run test on garment

In many cases, heat press may not work better on your synthetic blend. So, it is advisable to test press on a sample to see the reaction. 

If you don’t observe scorch marks at 270 degrees F, raise temperature a little bit higher. Repeat this test several times to identify the optimal heat pressing temperature. 

After identifying the optimal temperature, apply that for the original dress. Lastly, never forget to use transfer paper. 

Heat press garments

a white polyester and spandex t shirt is going to be heat pressed
Heat pressing polyester blend can be tricky

After identifying the perfect temperature, use this for your polyester-spandex blend. The duration of time the fabric stays inside the machine determines the quality of print. I recommend you not to leave element for more than ten seconds. After that, check the print. If the print isn’t complete, press again. 

How to Prevent Heat Press Mark on Garments

Heat pressing marks can be frustrating and can ruin your dress. So, it would help if you adopted some specific measures to prevent these marks.

  • Use a heat press pillow. Just put this pad inside the fabric and under the design area. It ensures the even distribution of heat. It comes in different sizes. 
  • Always press fabrics for around 5 minutes at a time. Check whether you observe any scorch mark on clothes. If so, press at a lower temperature.
  • To remove heat press mark, prepare a solution of water and hydrogen peroxide. Dampen the area with the mixture.
  • Steam the heat-pressed area to remove the press mark. 

Frequently Asked Questions

Can you heat press vinyl on Spandex?

Some fabrics can’t work better at high temperatures. But, you can apply HTV on Spandex without any hesitation. This synthetic material works better at high temperatures. That’s why it is often used as blends with other delicate materials.

You may require applying HTV products at 280 degrees Fahrenheit for 15 seconds. For better results, apply heat multiple times. Each time press the item for almost 5 seconds. Then, let the item cool down and press again.

Can you put HTV on polyester?

Polyester may be the perfect choice for decorative works. You can apply HTV on this item easily.

However, you should keep some issues in mind when doing it. First of all, the melting point of polyester is around 480 F. so, you may think temperature isn’t fact here. However, polyester can get shrink at high temperatures. So, keep the temperature below 300 F.

Never forget to preheat the fabric before applying vinyl. Use an iron to do it quickly. Most importantly, avoid choosing cheap heat transfer vinyl. 

Last Few Words

Heat pressing on garments can be tricky. Therefore, I recommend you adopt precautions while doing it. 

Do you have anything in mind? Please leave it in the comment section.

That’s it for today. Goodbye!

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