Unicharm’s Diaper Recycling Initiative

Once you become a parent, one thing quickly becomes clear: babies go through an unbelievable number of diapers every single day.

I remember constantly thinking about how much waste we were generating. While I understood the environmental impact of disposable diapers, I also couldn’t realistically see myself fully switching to cloth diapers. I’m sure many parents can relate to that balance between convenience, practicality, and sustainability.

That’s why I was really interested to learn about Japanese company Unicharm’s diaper recycling initiative, “RefF (Reef)”, which recently received the Runner-up Grand Prix at the 18th Japan Marketing Awards organized by the Japan Marketing Association.

“RefF” is described as the world’s first horizontal recycling system for used disposable diapers. Using Unicharm’s proprietary ozone treatment technology, used diapers are collected, sterilized, and recycled back into raw materials that can be used to create new diapers.

Traditionally, disposable diapers are simply incinerated after use. This initiative instead aims to build a circular resource system while also helping reduce CO2 emissions.

What makes the project especially interesting is that it goes beyond recycling alone. Unicharm collaborated with municipalities, consumers, and businesses to create a collection and recycling framework together — positioning the initiative as part of a broader circular economy model.

Even more encouraging: the recycled pulp is already being used in one of their diaper product lines.

Projects like this remind me that creating a more sustainable future doesn’t always mean demanding perfection from individuals. Sometimes, meaningful progress also comes from rethinking systems, infrastructure, and product lifecycles at a larger scale.

I hope initiatives like RefF continue to grow and inspire both companies and consumers to move further away from a disposable culture and toward a more circular economy.

Even though I no longer use diapers myself (my son is already in middle school now!), I still think this is such a meaningful initiative.

I hope projects like this continue to grow and make sustainable choices feel more accessible and realistic for future and current parents alike

What’s something you’d like to see happen to create a more circular future?

Source: https://www.unicharm.co.jp/ja/company/news/2026/0519-02.html