New solvent-free laminating adhesive – Toyo-Morton Co. Ltd
Toyo-Morton Co. Ltd. has introduced the solvent-free laminating adhesive “ECOAD EA-N6008” and the curing agent “EA-N5618/EA-N5633”. It is now feasible to change to non-solvent adhesives in domains where solvent-based laminating adhesives have been the primary way of processing, such as refill bags | pouches for shampoos and conditioners and separate packaging pouches for acidic contents such as sauces and chili sauce. We will help reduce CO² emissions by revving the desolvation of lamination adhesives through expanding applications.
Laminating adhesives are primarily used for laminating multi-layer films of flexible packaging materials and are typically diluted with organic solvents before being processed. As understanding of reducing environmental impact, such as reducing CO² emissions and improving energy efficiency, is growing, attention is increasing to solvent-free laminating adhesives that do not use diluent solvents. Furthermore, due to the global surge in raw material prices and difficulty procuring solvents, solvent-free lamination has become an urgent issue because solvent-free lamination also contributes to customer production expansion and cost reductions.
However, conventional solvent-free laminating adhesives cannot achieve the appearance and physical properties depending on the layer structure. Currently, it remains at 5-10%.
Toyo-Morton’s newly developed solvent-free laminating adhesive “ECOAD EA-N6008” and curing agent “EA-N5618/EA-N5633” have reduced CO² emissions from adhesives compared to solvent-based adhesives. It is a product that reduces emissions by 76% and realizes solvent-free applications and previously complex layer structures. By establishing a new paint film rheology analysis method in collaboration with the Analysis Technology Research Laboratory of Toyo Ink SC Holdings Co., Ltd., we have clarified the factors behind the deterioration of the physical properties of non-solvent lamination adhesives and developed new paints that differ from conventional paints.
We achieved appearance and physical properties through a film design approach. In addition, by deriving the parameters necessary for continuous lamination in collaboration with the Technology Development Laboratory, we have made it possible to perform non-solvent lamination with a 3-layer structure, which was previously difficult. It will contribute to reducing CO 2 emissions by realizing the expansion of solvent-free lamination applications and accelerating solvents’ elimination.
