Screen printing is more than just a method for getting bold graphics onto a t-shirt. It’s a crucial part of Rochester’s vibrant creative community—from neighborhood festivals in the South Wedge to student events at the University of Rochester. But as climate consciousness grows alongside interest in custom wearables, there’s a pressing question facing local screen printers and customers alike: how environmentally friendly are the different types of screen printing inks?

In this post, we’ll break down the environmental impacts of the main ink categories, helping Rochesterians make choices that are good for business and better for our community’s natural surroundings.

The Main Types of Screen Printing Inks

Screen printing inks fall into several key categories:

• • • Plastisol Inks
    • Water-Based Inks
    • Discharge Inks
    • Specialty & Eco-Friendly Alternatives

Each has unique qualities when it comes to printability, appearance, and especially, environmental effects.

Plastisol Inks: The Traditional Standard

Plastisol inks are the most widely used in commercial screen printing, beloved for their vibrant color and durability. However, their environmental profile is mixed.

• • • Ingredients: Plastisol is made from polyvinyl chloride (PVC) and plasticizers.
    • Impact: PVC is derived from petroleum—a non-renewable resource—and its manufacturing can release hazardous chemicals like dioxins. The inks themselves are not biodegradable.
    • Disposal: Waste plastisol and cleaning solvents must be handled as hazardous within Monroe County’s waste regulations.
    • Local Effect: Improper disposal can contaminate the Genesee River or Lake Ontario, areas where Rochesterians enjoy fishing, kayaking, and other water-based recreation.

Water-Based Inks: The Eco-Friendlier Choice

Water-based inks are gaining popularity among sustainability-minded businesses, artists, and even college clubs in Rochester.

• • • Ingredients: The pigment is suspended in water rather than oil or plastic.
    • Impact: Water-based inks are less toxic, emit fewer volatile organic compounds (VOCs), and are easier to clean up—often just with water.
    • Disposal: Wastewater must still be filtered for pigments before draining, especially to protect local water systems.
    • Print Feel: They soak into the fabric, offering a softer feel that’s favored by many small-batch producers in the Rochester Public Market scene.
    • Limitation: They may not be as bright or durable as plastisol on dark garments without extra additives.

Discharge Inks: A Mixed Bag

Discharge inks are a specialty product used to create soft prints on dark fabrics by removing the shirt dye and replacing it with ink.

• • • Ingredients: Contains water and activators, frequently based on formaldehyde or similar chemicals.
    • Impact: Produces less plastic waste but can release harmful fumes during printing, affecting air quality in enclosed spaces.
    • Disposal: Used rags and leftover ink require careful disposal in line with local hazardous waste protocols.
    • Local Note: Proper ventilation is crucial, especially in older Rochester buildings and home studios with less advanced HVAC systems.

Specialty & Eco-Friendly Alternatives

Innovations are happening in the world of screen printing, with several companies launching inks based on soy, algae, or biodegradable binders.

• • • Benefits: These inks reduce reliance on fossil fuels, cut VOC emissions, and in many cases, are easier to dispose of responsibly.
    • Limitations: They may be more expensive and less readily available for smaller Rochester print shops.
    • Community Impact: As demand rises—think special events on Park Avenue or eco-focused businesses at the Rochester Public Market—local suppliers may start stocking more of these green products.

Ink Cleanup and Shop Practices

No matter which ink you use, the biggest factor in environmental impact comes from how waste and chemicals are handled.

• • • Cleanup solvents: Traditional shop solvents can release significant VOCs, affecting both local air quality and workers’ health. Many Rochester printers are switching to citrus-based or biodegradable cleaners.
    • Waste water: Inks and chemicals should be filtered before they reach storm drains or sewers. This keeps harmful substances out of the Genesee River watershed.
    • Recycling: Reusing screens and reclaiming excess ink are standard best practices in sustainable shops.

Regulatory Landscape in Rochester

• • • Local laws: Monroe County and Rochester have specific requirements for hazardous waste disposal. Printers must register for waste drop-off and keep detailed records.
    • Community resources: Groups like the Rochester Greenovation Center offer educational workshops on greener practices and help businesses connect with eco-friendly suppliers.

What Can Consumers Do?

As a Rochester resident or business, your choices shape the local industry. Here’s how you can drive positive change:

• • • Ask print shops about their inks and disposal methods.
    • Request water-based or eco-friendly inks for your next event shirts.
    • Support shops that participate in waste reduction programs.
    • Spread the word about responsible printing on social media and at local events.

By making conscious decisions, you support not just environmental sustainability but also a cleaner, greener, and more vibrant Rochester.

Conclusion

Rochester’s screen printing community is at the crossroads of tradition and sustainability. By understanding the environmental impacts of different inks—and demanding better choices—we can protect our region’s cherished natural spaces while keeping its creative spirit alive. Whether you’re printing gear for a local festival, a school club, or your business, your choices matter. Together, let’s inspire a more sustainable and creative future for Rochester, New York.