Home » Blog » When did the doypack first appear and who invented it?

A doypack or pouch is a special type of flexible hermetic packaging that looks like a plastic bag with the bottom part that enables such packaging to stand up vertically if filled. A multi-seamed (1–5 seams) design with a flexible bottom is typical of a doypack. It was named after its inventor Louis Doyen. That is to say, doy- is derived from DOYen, and –pack is derived from PACKaging

Louis Doyen, the head of a French company Thimonnier that owns the rights to the trademark Doypack, came up with the doypack design in 1963. In those years, the European manufacturers failed to appreciate its novelty. Thus, doypak as a brand was assigned to Thimonnier without legally continuing a patent for an extraordinary (as of those years) packaging. It resulted in the doypack manufacturing technology being subjected to public scrutiny. Japanese manufacturers of packaging developed and fine-tuned the doypack manufacturing technology. Apart from polymeric doypacks, the manufacturers started to produce foil and combined layers design doypacks that contributed to more lasting quality and a longer due date of a product. Over the years, doypacks became popular in Japan and soon all over the globe. 

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