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Siegwerk offers NC free surface ink systems

This innovation is a significant step forward in the development of sustainable packaging solutions.

The Need for Sustainable Packaging

The packaging industry is under increasing pressure to reduce its environmental impact. The use of nitrocellulose (NC) in inks has been a long-standing issue due to its non-renewable and non-biodegradable nature. The extraction and processing of NC contribute to deforestation, water pollution, and greenhouse gas emissions. As a result, many companies are seeking alternative, sustainable solutions.

The Challenge of NC-Free Inks

Developing NC-free inks that meet the performance requirements of the packaging industry has been a significant challenge. The absence of NC affects the ink’s viscosity, flow, and drying properties, making it difficult to achieve consistent print quality.

However, the development of new ink formulations has led to the creation of more environmentally friendly alternatives.

The Problem with Nitrocellulose-Based Inks

Nitrocellulose-based inks have been a staple in the printing industry for decades. They offer a range of benefits, including excellent printability, flexibility, and durability. However, their environmental impact has raised concerns among recycling experts and environmentalists.

Environmental Concerns

  • Odour and Discolouration: NC-based inks can release unpleasant odours during the recycling process, which can be a nuisance for workers and the surrounding environment. Lower Mechanical Strength: The ink’s lower mechanical strength can lead to a decrease in the overall quality of the recycled material. Difficulty in Recycling: The presence of nitrocellulose in inks can make it challenging to recycle, as it can contaminate other materials and reduce the value of the recycled product. ## The Development of New Ink Formulations**

    • The Development of New Ink Formulations

    In response to the environmental concerns surrounding NC-based inks, the printing industry has seen a significant shift towards the development of new ink formulations. These alternative inks are designed to be more environmentally friendly, while still maintaining the benefits of nitrocellulose-based inks.

    Key Features of New Ink Formulations

  • Biodegradable: Many new ink formulations are biodegradable, reducing the risk of environmental contamination. Improved Mechanical Strength: These inks often have improved mechanical strength, making them suitable for a wider range of applications. Enhanced Printability: New ink formulations can offer improved printability, allowing for more precise and consistent printing results. ## Case Studies: Successful Implementations**

    • Case Studies: Successful Implementations

    Several companies have successfully implemented new ink formulations in their printing operations.

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