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[Marketing manager] By using polyester-based materials for the labelstocks (facestock and adhesive), this product is created as a mono-material with polyester-based containers, such as PET bottles and boxed meal containers. The adhesive is a removable type, but even if you forget to remove it and the label remains, it can be recycled together.
[Sales manager] The printing coating has a function that allows deinking (removing ink) with hot alkaline water. That allows for the removal of ink and other impurities, because the ink is eliminated during the recycling washing process.
[R&D manager] In the recycling of PET bottles and other containers, labels are currently peeled off by consumers, or removed by machine or by hand in the recycling process, because label contamination degrades the quality of the recycled resin. We wondered if it would be possible to develop a label that could improve the efficiency of recyclability without the need for labor and effort, so we began development based on the concept of creating mono-materials.
[R&D manager] The mono-material labelstock has a special coating on the facestock so that the printed layer peels off when triggered by hot alkaline water, but the selection of the material for this coating took a great deal of time. In addition, for the development of the adhesive, we had little knowledge of polyester-based adhesives, and this product had to be compliant with Japan's Food Sanitation Act with regard to the formulation of additives. So, we struggled to create a better product with a limited choice of materials.
[Sales manager] We believe it is suitable for beverage PET bottles and food containers, as well as for cosmetics and toiletry containers. The product has been well received by customers, not only for being a mono-material, but also for its acquisition of Japan's Biomass Mark and compliance with Japan's Food Sanitation Act, and it is being increasingly adopted as a label to be applied to containers.
[Marketing manager] In the course of introducing this product, we began to hear from customers that they wanted labels that were compatible with polyethylene and polypropylene. In order to meet that demand, we would like to work on the development of new adhesives in cooperation with our Research center in future.