水性フレキソ印刷とノンソルベントラミネートを組み合わせたレトルト対応パッケージの開発

抄録

In recent years, global efforts to conserve resources and reduce carbon emissions have intensified toward realizing a more sustainable society, and effectively utilizing resources and reducing waste has become an urgent priority across various fields. Packaging, which is indispensable for distributing a wide range of products including food, generates environmental impacts throughout its production, use, and disposal stages. From a sustainability perspective, there is a growing need for comprehensive product design and manufacturing processes that go beyond conventional methods to reduce environmental impact. Against this backdrop, TOPPAN is striving to develop a solvent-free packaging manufacturing process by replacing solvent-based gravure printing with water-based flexographic printing, and solvent-based lamination with solvent-free lamination. Recently, TOPPAN successfully developed a retort pouch that combines water-based flexo printing and solvent-free lamination, achieving approximately a 40 % reduction in CO₂ emissions. In the future, TOPPAN will continue to expand the use of water-based flexo printing and solvent-free lamination across a wide range of products.