What are solvents?
Solvents are chemical liquids used to dissolve or break down inks, coatings, and residues. Solvents are particularly effective for cleaning inks and coatings that are not water-soluble.
Using solvents requires careful handling, as many are flammable, and may pose both short and long term health risks if inhaled or the liquid gets on the skin. Protective equipment and proper ventilation are important when working with solvents to ensure the safety of workers.
What are alkaline cleaning liquids?
Alkaline cleaning liquids are water-based solutions with a higher pH level, designed to remove ink, coatings, and residues. These cleaners are effective for breaking down water-based ink as well as solvent-based ink, making them a great option for cleaning printing equipment.
Compared to solvents, alkaline cleaners are typically less flammable and are generally safer to handle. While they can still cause irritation to the skin or eyes due to their higher pH levels, the risks are significantly lower when proper safety measures, such as wearing gloves and goggles, are followed.
Why choose alkaline over solvents?
Both solvents and alkaline cleaning liquids have their place in the printing industry, but the choice often comes down to balancing performance, safety, and environmental considerations. Here’s why many companies are shifting toward alkaline cleaners:
- Worker safety & health
Alkaline cleaners are generally safer for workers. Unlike solvents, they are less likely to emit harmful fumes and are less toxic when handled correctly. This reduces the short-term risk of respiratory issues or long-term health problems such as neurological, liver, and kidney damage caused by frequent exposure to harsh chemicals. - Environmental impact
Both solvents and alkaline cleaning solutions have environmental considerations. While solvents can pose challenges in disposal, they can often be distilled and reused, minimizing waste. Alkaline solutions, on the other hand, are typically biodegradable and water-dilutable, reducing hazardous waste. The overall sustainability of each method depends on factors such as waste management, reuse potential, and the specific cleaning requirements of the business.
- Reduced VOC emissions
Volatile organic compounds (VOCs) are a significant concern when working with solvents. These compounds can contribute to poor indoor air quality and the mentioned health risks to workers. Alkaline cleaning liquids typically contain lower VOCs, making them a safer and cleaner option for maintaining air quality in the workplace.
Conclusion
Transitioning from solvents to alkaline cleaning liquids offers businesses in the printing industry a practical and sustainable way to improve safety and reduce environmental impact. While solvents remain a valuable option in specific contexts, the benefits of alkaline solutions—including lower health risks, reduced VOC emissions, and a smaller environmental footprint.
Flexo Wash is ready to help your businesses find the right cleaning solution for their needs. With our knowledge and advanced cleaning solutions, we can guide you to the best and most sustainable option. Whether using alkaline cleaning or other methods, we make sure you get the best cleaning results while keeping the workplace safe and reducing environmental impact. Contact us to hear more.
