What Is ADL (Acquisition Distribution Layer)?
Direct Answer
The ADL is a bulky layer under a diaper or pad topsheet that quickly acquires liquid and distributes it across the core, preventing pooling and leaks.
Key Takeaways
- The ADL is a bulky layer under a diaper or pad topsheet that quickly acquires liquid and distributes it across the core, preventing pooling and leaks.
- How it works: The ADL sits between the topsheet and absorbent core.
- Diapers with a good ADL absorb repeated pours without pooling
- Myth: The topsheet does all the absorbing. The ADL does the fast acquisition and distribution work
How ADL (Acquisition Distribution Layer) Works
The ADL sits between the topsheet and absorbent core. It has open, bulky structure that grabs liquid fast and spreads it sideways so the core is used evenly. This prevents liquid pooling in one spot (which causes leaks and gel blocking) and speeds absorption. Materials: carded nonwoven or airlaid with high void volume.
Examples and Applications
- Diapers with a good ADL absorb repeated pours without pooling
- ADL distributes liquid across the full core width, using all the SAP
ADL (Acquisition Distribution Layer) vs. Related Terms
| Term | What it is | Key difference |
|---|---|---|
| Topsheet | ADL (Acquisition Distribution Layer) | Topsheet contacts skin and lets liquid through; ADL underneath grabs and spreads it |
Limitations and Common Misconceptions
- Myth: The topsheet does all the absorbing. The ADL does the fast acquisition and distribution work
- Myth: ADL is only for heavy diapers. It improves acquisition in pads and light diapers too
What does the ADL do?
Quickly acquires liquid and distributes it across the core, preventing pooling, leaks and gel blocking.
Why is the ADL important?
It makes absorption fast and even, keeping the surface dry and using the whole core.
References
- Pampers Official - What's in a Pampers diaper (component materials) — 品牌官方 (accessed 2026-08-02)
- JP CIA (industry) - Baby diaper material: key components and their functions — 行业媒体 (accessed 2026-08-02)