03 / Product layers
Explore backsheet construction and waterproof outer layers, with disposable and reusable products distinguished.
Explore companies by the region of their headquarters.
Research, public-sector sources and items without confirmed headquarters remain under All. References are not filtered.
Related stories and sources
Selected for their discussion of this layer or its materials. Product descriptions and material research are identified separately.
2 articles · 1 brief
Company HQ: Night n Day · Australia ↗
www.continence.org.au · Manufacturer interview · Organization source
An interview about Night n Day reusable absorbent products describes a waterproof outer layer. The cloth construction is distinct from a disposable diaper's backing film.
A reusable-product materials reference, not a universal comparison.
Company HQ: Unicharm · Japan ↗
Unicharm · Product description · Company-published source
Unicharm’s October 3, 2025 release describes stretch nonwoven fabric around the abdomen and a stretch design at the crotch in Lifree Premium adult pants, scheduled for Japanese release in early October.
The linked official product page also describes the stretch nonwoven construction. This account is limited to the confirmed material and structural features. The release’s body and footnote disagree over the location of elastic, so that disputed location is not resolved here.
Company HQ: Unicharm · Japan ↗
Unicharm · Product description · Company-published source
Unicharm’s October 1, 2025 release describes a thin Lifree insert pad for use with adult pants, scheduled for Japanese release in early October.
The source provides a manufacturer’s explanation of structure and materials. It does not independently establish clinical effects or make absorption claims from different products or markets interchangeable.
Background references
EDANA
EDANA outlines where nonwovens are used and names other components, including fluff pulp, superabsorbent polymer and backing films.
Read the original source ↗EDANA
EDANA’s adult-incontinence composition reference, previously linked from the overview.
Read the original source ↗Continue exploring
One article may discuss several layers. These are links to the same published article, not additional studies or evidence of environmental superiority.
