Wash-off adhesives are specifically designed labels crafted to detach from containers, which are generally PET or glass, when they come in contact with hot water or alkaline washing solutions. In contrast to regular labels, which use permanent adhesives, wash-off labels use a removable adhesive system that remains during logistics but lets go completely in a managed wash process. Such labels leave no glue residue and do not damage the overall container layer, which means jars and bottles can be conveniently recycled or reused.
Particularly stuck on returnable glass beverage bottles, such as beer bottles or rigid plastic crates, wash-off labels streamline recycling by making sure that labels do not contaminate the recycled materials. The removal procedure frequently requires hot water and further cleaning agents, which can increase water application and energy usage. Additionally, the adhesive residue, such as Biaxially oriented Polypropylene (BOPP) and Polyethylene Tetraphthalate (PPE) films, is not biodegradable and results in landfill waste.
Avoiding adhesives from recycled plastic flakes frequently needs the application of tailored chemical additives in the washing stage. Caustic soda or sodium hydroxide is prevalently used in hot water cycles to lower the link between the plastic layer and labels. Detergents and surfactants are also added to assist in upgrading the adhesive and store them on shelves in the water so they can be washed off easily.
On the other hand, effective chemicals should be precisely tracked in the service's wastewater treatment machine. Creating more water-soluble or heat-sensitive adhesives is the main goal for developing the sustainability of plastic packaging.
When PET bottles are recycled, they are left in flakes and processed with the assistance of a caustic wash system. If label adhesives are not accurately washed off or avoided, they can leave residue on PET flakes, lower reclaim value, and develop pollutants in the recycling stream. Sustainable hot melt labelling adhesives must be particularly crafted to stay protected on the bottle during distribution and manufacturing, but they are classified as approximately during the recycling period.
For instance, some of the sustainable hot melt labelling adhesives are being carried forward by:
The Jammu and Kashmir government has admitted that sodium silicate adhesive has been used on apple packaging boxes, which do not usually pose an “direct acute toxicity risks” to users who do not come into direct contact with the manufacturer.
In December 2025, Tex Year Group, which is Taiwan’s primary publicly listed hot melt adhesive producer with operations in India, confirmed the official beginning of mass manufacturing at its second production facility in the Mahad Industrial Area, Maharashtra.
Aditi serves as Vice President at Towards Packaging, bringing over 15 years of experience in market research, innovation, and business strategy within the packaging industry. She works across segments such as sustainable packaging, flexible materials, and industrial packaging solutions. Aditi studies evolving consumer demands, material advancements, and regulatory changes, then turns those insights into clear strategies for businesses. She helps organizations stay competitive, improve product positioning, and respond effectively to shifting market trends.
Aman Singh has spent more than 13 years working in research and consulting, with a strong focus on the global packaging sector. He tracks developments in areas like eco-friendly materials, smart packaging technologies, and supply chain changes. At Towards Packaging, Aman leads the research team and ensures every study delivers accurate and useful insights. He breaks down complex industry developments and helps companies understand where opportunities lie and how to act on them.
Piyush Pawar works as Senior Manager for Sales and Business Growth at Towards Packaging, bringing over a decade of experience in client-facing roles within the packaging industry. He connects businesses with the right research and helps them apply insights to real-world decisions. Piyush understands market challenges and works closely with clients to provide solutions that support growth. He focuses on building strong partnerships and helping companies turn industry knowledge into practical results.
Improving PET Recycling with Wash Off Adhesives and Efficient Label Removal
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