A Beginner's Guide to Screen Printing Inks

April 27, 2023

Screen printing is a popular method of printing images or designs on various surfaces. The process involves applying ink through a stencil onto a substrate, such as fabric, paper, or plastic. One of the essential components of the screen printing process is ink. Screen printing ink comes in a variety of types, each with its unique characteristics and properties. In this beginner's guide, we will explore the different types of screen printing inks and their applications.

Understanding Screen Printing Inks

Before we dive into the different types of screen printing inks, it's essential to understand the two primary types of ink: plastisol and water-based ink.

Plastisol Ink

Plastisol ink is a type of ink made from PVC particles suspended in a plasticizer. This ink is known for its versatility and ability to create a thick, opaque layer on the fabric. Plastisol ink is ideal for printing on dark-colored fabric as it provides better coverage and opacity. It is also easy to use and doesn't require any special equipment for curing.

Plastisol Ink

Example of Plastisol Ink

Water-Based Ink

Water-based ink is a type of ink that uses water as a base instead of a plasticizer. This type of ink is more eco-friendly and produces a softer, more breathable print on fabric. Water-based ink is also ideal for printing on light-colored fabric as it produces vibrant and bright colors. However, it requires more specialized equipment for curing.

Water-Based Ink

Example of Water-Based Ink

Types of Screen Printing Inks

Now that we have an understanding of the two primary types of inks, let's explore the different types of screen printing inks and their applications.

Plastisol Inks

Standard Plastisol Ink
High-Opacity Plastisol Ink
Low-Cure Plastisol Ink
Foil Plastisol Ink
Glitter Plastisol Ink

Water-Based Inks

Standard Water-Based Ink
Discharge Water-Based Ink
Silicone Water-Based Ink
Puff Water-Based Ink
Metallic Water-Based Ink

Choosing the Right Screen Printing Ink

When choosing the right screen printing ink, several factors should be considered, such as the substrate, the design, and the intended use. Here are some tips for selecting the right ink:

Consider the fabric type - Plastisol ink is ideal for printing on cotton, polyester, and blended fabrics, while water-based ink is better suited for natural fibers such as cotton, bamboo, and silk.
Determine the design - If your design requires bright colors and a soft feel, water-based ink may be the better choice. If you need to print on dark fabric, plastisol ink is your best bet.
Consider the curing method - Plastisol ink can be cured at lower temperatures, which is ideal for heat-sensitive fabrics. Water-based ink requires higher temperatures and longer curing times.

Caring for Screen Printed Garments

Proper care is essential for maintaining the longevity of screen printed garments. Here are some tips for caring for your screen printed garments:

Wash your garments inside out.
Use a mild detergent and avoid bleach or fabric softeners.
Wash in cold water and tumble dry on low heat.
Avoid ironing directly on the print.

Conclusion

Screen printing ink plays a crucial role in creating high-quality and long-lasting prints. When choosing the right ink, consider the substrate, design, and intended use. With this beginner's guide, you can make an informed decision when selecting the right ink for your next screen printing project.

FAQs

Can I mix plastisol and water-based inks?

Answer: No, mixing plastisol and water-based inks is not recommended as they have different chemical compositions and curing requirements. Mixing them can result in poor adhesion, cracking, or flaking of the print. It's best to use either plastisol or water-based ink for a single print job.
How do I cure my screen printed garments?

Answer: Plastisol ink can be cured using a heat press or conveyor dryer, while water-based ink requires a heat tunnel or oven.
Can I use screen printing ink on other surfaces besides fabric?

Answer: Yes, screen printing ink can be used on various surfaces such as paper, plastic, metal, and wood.
Can I use regular inkjet ink for screen printing?

Answer: No, regular inkjet ink is not suitable for screen printing as it is not thick enough and can clog the screen.
How long does screen printing ink last?

Answer: Screen printing ink can last for several years if cared for properly. However, the lifespan can vary depending on the ink type, fabric type, and care instructions.