In an era marked by heightened environmental consciousness, the emphasis on sustainability is not merely a trend, but rather a crucial necessity. Developing innovative solutions for responsible consumption has become imperative. Recognizing the significance of this global need, Yansefu is championing environmental responsibility by introducing alternatives to PVC-based ink and coatings.
From linear to circular economy – a paradigm shift
The linear economy – a failing system: The conventional linear economy, which adheres to the ‘consume-and-dispose’ principle, has led to considerable waste and unsustainable exploitation of resources. Single-use plastic packaging has transformed into a representation of the shortcomings of this system, frequently employed and then discarded.
The circular economy – a vision for the future: A circular economy offers a fresh perspective, aiming to balance economic growth with a focus on resource mindfulness. By limiting resource intake and maximizing utilization, it seeks to eliminate waste generation. This approach is not only an ideal, but also an actionable framework that prioritizes recycling and reduction as key strategies, aligning with the natural boundaries of the planet.
PVC – a complex challenge
Degradation mechanisms and challenges: Thermal and light-induced degradation processes in PVC result in hydrodechlorination, forming internal double bonds that significantly diminish the mechanical strength of the material. This triggers a cascade of reactions, leading to polyene sequences along the chain, which absorb light and discolour the polymer. High degradation levels and a lack of oxygen further induce chain crosslinking through double bonds.
These processes are accompanied by secondary reactions, generating a myriad of chain structures and functionalities. Radicals, produced through the cleavage of the C-Cl bond or abstraction of hydrogens, react with environmental oxygen, forming oxygenated species, including carboxylic acid end-groups. Since PVC polyene formation occurs under various atmospheric conditions, controlling degradation becomes immensely challenging, and the complete elimination of substantive degradation is unfeasible.
Trace amounts of PVC in PET streams
Contaminants further complicate matters, catalyzing hydrodechlorination and impacting mechanical performance. Trace amounts of PVC in PET streams induce reactions that release HCl, accelerating PET degradation, and damaging processing equipment. Moreover, traces of PVC can leach acids, promoting undesirable reactions in post-consumer polymer melts, affecting both recyclability and product quality.
Global response
The global community is increasingly acknowledging and tackling the challenges posed by PVC. Numerous companies and countries are enacting restrictions or outright bans on PVC in packaging, reflecting a worldwide movement toward more sustainable alternatives. Considering the apparent challenges, it’s unsurprising that significant corporations such as Unilever and Marks & Spencer, along with countries like South Korea, as well as several states in the US and Europe, are actively working to phase out or limit the use of PVC.
Nestle’s commitment to PVC-free systems is underscored by clear directives outlined in their ‘Golden Rules’ for sustainable packaging document. As per the document dated November 2021, Nestle places a strong emphasis on the prohibition of PVC use. This commitment extends to specific decoration practices, where the use of PVC or conventional PET-G film substrates for sleeves or labels is not permitted, and PVC inks are also proscribed. These rules reflect Nestle’s dedication to maximizing the value of the recycling stream, adhering to food safety standards, and fostering a comprehensive approach to end-of-life evaluation for packaging materials. By enforcing these guidelines, Nestle is actively working towards a more sustainable and environmentally responsible packaging paradigm.
In the arena of ink manufacturing, the successful recycling of plastic packaging requires ink solutions that neither hinder the recycling process nor compromise the quality of recyclates. This calls for designing PVC-free ink alternatives and coatings that are compatible with recycling processes.
Yansefu redefines packaging norms with PVC-free inks for greener solutions
Yansefu has been a pioneer in the push towards sustainable packaging. Its cutting-edge PVC-free inks have been successfully deployed in various packaging applications, creating a revolutionary change in packaging structure and enhancing recyclability.
Yansefu’s proactive approach goes beyond compliance. The company believes in creating a sustainable future through innovation, responsibility, and a deep-seated commitment to the environment. Yansefu also cultivates partnerships and collaborations with other industry stakeholders to advance the cause of sustainability. Its shared vision with its partners amplifies its efforts in this critical area, ensuring a holistic approach to environmental stewardship.
The shift to a circular economy requires more than just theoretical understanding; it demands action, innovation, and collaboration. Yansefu embodies this transformative spirit by leading the industry in the creation and utilization of PVC-free ink and coating alternatives.
Through relentless innovation, collaboration, and commitment to environmental principles, Yansefu is paving the way to a sustainable future. The lessons learned from tackling PVC’s complexities, and the success in creating effective alternatives, provide an inspiring roadmap for continued progress.
