How to Screen Print with Plastisol Heat Transfers

Plastisol heat transfers are screen printed with plastisol ink on a plastisol transfer paper. We are frequently asked how to use this method of screen printing. We are going to briefly touch on how to do so. These plastisol heat transfers give you the flexibility of printing on t-shirts, hats, sweatshirts, tote bags, koozies and so much more!

  • What Are Plastisol Transfers?

Plastisol Transfers are screen-printed designs that are printed on a unique heat transfer (release) paper rather than screen printing directly to a garment. Once the design is screen printed onto the sheet, the printed heat transfer sheets are ready to be transferred onto any garment (t-shirts, sweatshirts, hats, etc) with a heat press.

  • Let's Discuss the Basics:

For plastisol heat transfers the artwork needs to be reverse printed onto the paper. The ink on the paper is then half cured, and then when it’s prepared to be positioned on a substrate, the paper is placed on the heat press and pressed with the heat set to approx. 320 degrees. The paper is pulled away, leaving the completely cured plastisol ink behind on the substrate.

  • The Benefits of Plastisol Heat Transfers

While plastisol heat transfers won’t be the best fit for all your typical screen-printing jobs, various scenarios make plastisol heat transfers a better choice over traditional screen printing. Plastisol heat transfers are excellent for applying a thick, crisp print on top of substrates that are very tough to print on, such as baseball caps and athletics jerseys.

Plastisol heat transfers are also great for small print runs when you’re unsure of which items or sizes you will require. Let’s take live printing for example, if you decide to print on demand for customers you can easily transfer artwork onto any size garment without pre-printing a lot of garments. By using the plastisol transfers you are saving money on garments that did not need to be printed on. Another cool way to utilize plastisol transfer is by using the same artwork on a variety of substrates. You can have pre-printed art and then when a customer decides to order you can print onto a t shirt or jacket saving the unused garments for future use.

In both models mentioned above, the plastisol heat transfers enable you to satisfy your customer without overprinting a huge volume of items that will sit unsold in your shop.

Plastisol heat transfers can also be a huge time saver when it comes to custom prints like jerseys. Let’s take sports jerseys for an example. If you have pre-printed letters and numbers, you can customize t-shirts quickly without burning individual screens for each player’s name.

  • How Are Plastisol Heat Transfers Made?

To successfully print with plastisol heat transfers, it’s important to comprehend how they’re made. Plastisol heat transfers are prepared much like you would make any screen print, with slight modifications. The fundamental difference with a heat transfer is that you’ll practically be doing your print backward, as the top layer of the heat transfer will be the bottom layer when it’s applied to the shirt. It must be backward so when it is transferred it reads correctly left to right.

  • What Equipment is Required To Make Plastisol Heat Transfers?

First you will need the conventional screen-printing supplies: emulsion, squeegee, plastisol ink, inkjet film with artwork, an aluminum/wood frame and a screen-printing press.

Beyond your conventional screen-printing equipment, you’ll need a few other supplies. You will need a heat press, heat transfer paper. We strongly suggest the use of plastisol transfer powder or foil adhesive additive when printing on 50/50 blends, polyester (any synthetic fibers.)

  • And Now for Printing: Step by step how to create a plastisol transfer

To print, make sure you have off-contact distance with your screen-printing press, commonly 1/16 of an inch.

We highly recommend a platen adhesive such as our Super Tack to keep your garment/substrate from moving.

For a bright and clear print, apply your ink, flood the screen and then, pressing down with moderate pressure push or pull the squeegee across the screen.

Once the plastisol heat transfer has been created, you’ll need to partly cure the ink. That implies heating your plastisol ink between 180- and 240-degrees Fahrenheit. Your plastisol heat transfer will then be ready to be applied to your product or stored for future use

There is one more step in the printing process should you choose to use a plastisol adhesive transfer powder or foil adhesive additive for synthetic fibers. Transfer powder improves wash durability and overall makes a much more durable print once transferred; we highly recommend including this next step.

If using the powder, print your artwork as stated previously however after the ink is printed flash the ink but do not fully cure the ink, it should be slightly wet. Next get a bucket and pour transfer powder into bucket, excess powder can be stored back into container for future use. Using gloves take your slightly wet print and dip the transfer paper into the bucket and cover the entire printed area with powder. Run the powdered print through the drier to gel the ink between 180-240 degrees Fahrenheit. Gel the ink, do not fully cure the ink. Your plastisol heat transfer will then be ready to be applied to your product or stored for future use.

If using the foil adhesive additive, print the additive first onto the transfer paper and flash. Proceed printing steps as stated above.

*Please note that curing temps will vary depending on the type of ink you are using.

  • How Do You Apply the Plastisol Heat Transfer to your substrate?

There are 2 alternatives for application: hot-split transfers and cold transfers. Place substrate into a heat transfer press and position your plastisol heat transfer in the correct print placement. With your heat transfer press set between 320-350 Fahrenheit, press the heat transfer onto the substrate for 10 to 12 seconds.

 If you’re using hot-split transfer paper, you’ll instantly peel off the paper, which will slice the ink in two, inserting some on the substrate while leaving the remaining on the paper. This category of transfer gives a fluffier feel. With the help of a cold transfer, you’ll facilitate the substrate and the transfer paper to cool down rapidly for about 35- 40 seconds before removing the paper away. The whole plastisol transfer will stay on the shirt.

Pressure and timing are going to vary depending on the age and type of heat press you are using as well as the type of transfer paper. This is where you are really going to have to do some testing and see which combination and settings work best for you! 

MISC Questions:

  • What type of art can I make with Plastisol Transfers?

You can create anything you can print using traditional screen-printing methods.

  • How many different types of plastisol transfers are there?

1) Cold Peel: Applied with a heat press and removed once the transfer is cooled. Usually has a polished look.

2) Hot Peel: Applied with a heat press and removed instantly after pressing, while the transfer is however hot. Usually, it has more of a matte look.

3) Hot Split: Applied with a heat press and removed directly after pressing, while the transfer it hot. Some of the ink transfers to the t-shirt and some of them in on the transfer paper resulting in a "split". This is presumed to provide the final design the softest hand with a matte finish.

  • What category of Special Printing Methods Can Be Performed with Plastisol Transfers

Numerous of the specialty printing procedures done by conventional screen printers can be performed with custom plastisol transfers. This comprises (but is not limited to): puff printing, glitter printing, foil printing, colorless screen printing, sparkle printing, etc.

  • What Is the Quality of Plastisol Transfers?

Out of inkjet-printed transfers, vinyl transfers, laser printed transfers, and opaque transfers, plastisol transfers have a more impressive print quality and a more promising durability.

Let's Talk 

Remember, we are here to help! Drop a comment below or email our support team at info@screenprintdirect.com 

 

1 comment

Willie Hughes

Willie Hughes

Just trying to join and see how this work.

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