[Diaperman][Shorts] Same Fabric — Repels Water Outside, Drinks Inside?!

🎬 Shorts video: https://www.youtube.com/shorts/5lHAKGypzWo

Same fabric, but the outside repels water while the inside absorbs it?

Detective DiaperMan uncovers the dual structure of diaper outer fabric. Waterproof outside, absorbent inside — how one fabric does two opposite jobs.

📌 Key Takeaways

The secret is in the directional surface treatment of fibers. The same nonwoven gets water-repellent coating outside and hydrophilic treatment inside.
The diaper backsheet is a breathable waterproof film — it lets moisture vapor out but blocks liquid droplets. Similar principle to Gore-Tex!
Such dual-function fabrics are used not only in diapers but also in sanitary pads and hiking gear. One material, two rabbits caught.

Do YOU own functional clothing that's waterproof outside but sweat-absorbing inside? Ever wondered how it works?

🕵️ The science you were too embarrassed to ask about — search "Diaperman" on YouTube and subscribe → https://www.youtube.com/@gijeogwiman

#diaperman #waterproof #fabric #shorts

This article was generated with AI.

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