What Diapers Are Made Of: A Materials Guide for Importers

Updated: September 2024 · LIAO GROUP

Key point: diaper quality is defined by materials — superabsorbent polymer (SAP), the breathable hot-air-through surface and the protective layer. Understanding materials helps an importer evaluate any manufacturer.

The absorbent core and SAP

Superabsorbent polymer (SAP) locks moisture inside the core, turning it into gel. Dual core distributes liquid faster and holds more — a key difference between premium and economy diapers.

The hot-air-through surface

The soft hydrophilic hot-air-through top sheet draws moisture inside while staying dry to the touch. This is the main factor of comfort and rash prevention for babies.

The breathable protective layer

The back sheet lets air pass but not moisture — the skin breathes and irritation risk drops. A simple test: hold the diaper over warm water and feel the vapor.

Elastic waistbands and cuffs

The elastic waistband and leg cuffs ensure fit and leak protection. Check that the elastics are soft and leave no marks.

How this helps an importer

Knowing these four components lets you objectively compare offers from different factories. LIAO GROUP uses modern materials and in-house quality laboratories — request samples and compare yourself.