Tips for printing on polyester

There is no one option that suits everyone when it comes to choosing the type of polyester you want to print. Different blends, from polyester / cotton to polyester / viscose, have different characteristics when screen printed . Polyester is renowned for its wrinkle resistance, durability and hypoallergenic qualities. Although a synthetic fiber, polyester is naturally resistant to dyeing and resistant to shrinkage, providing a magical combination of comfort. Here are some tips for printing on polyester:

Choose the right polyester for screen printing
Different types of polyester blends have their own challenges. Depending on the fiber ratio, polyester mixed with other fibers may prevent the ink from being properly absorbed. For example, during drying, a migration of paint may occur on a mixture of 50/50 polyester and cotton .

To avoid migrating dyes, be sure to choose the right polyester blend for the project and, while drying, avoid overheating the fabric. A 100% polyester blend will allow the ink to set well, while anything below 65% polyester can cause hardening problems.

Choose the right paint
Working with polyester requires experimentation with ink before moving to mass production.

There are several types of inks. Plastisol ink is synthetic and shiny, water-based ink is more environmentally friendly and softer to the touch. This is because water-based ink is absorbed into the fabric. The plasticine sits on top of the fabric creating a feeling of stiffness.

Due to the resistance of polyester to moisture absorption, water-based inks require you to use a base. Unlike plastisol ink, water-based inks dry faster.

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