How Diaper Materials Influence Absorption Performance? 

In today’s highly competitive hygiene market, the absorption performance of baby diapers has become a key factor that differentiates brands. Absorption speed, retention capacity, rewet control, and long-lasting dryness—all these crucial features are determined by the quality and selection of the diaper’s raw materials. As a professional manufacturer of hygiene raw materials, we understand how each material plays a critical role in the diaper’s absorption system.

1. Top Sheet: The First Layer That Determines Dryness & Liquid Transfer

The top sheet is usually made from hot-air nonwoven or spunbond nonwoven fabric, designed to:

• Quickly transfer liquid to the core

• Keep the surface dry and comfortable

• Reduce rewet and skin contact with moisture

Embossed or 3D-perforated designs help speed up liquid penetration.

2. ADL (Acquisition Distribution Layer): The Liquid Distribution Hub

The ADL, made of colored or spunbond nonwoven, significantly influences:

• Liquid distribution speed

• How evenly liquid spreads across the diaper

• Prevention of localized saturation and leakage

A high-quality ADL ensures the core absorbs efficiently across the entire area.

3. Absorbent Core: The Balance Between SAP & Fluff Pulp

The core typically consists of SAP (super absorbent polymer) and fluff pulp.

• SAP determines total absorption and retention

• Fluff pulp provides structure and helps distribute liquid

Higher SAP content increases total absorption but must be balanced to maintain softness and structural stability.

4. Breathable Back Sheet: Moisture Control & Leak Protection

The back sheet, made from PE film or composite nonwoven, affects:

• Breathability

• Rewet prevention

• Strength and comfort

Breathable films help reduce heat buildup and improve overall wearing comfort.

5. Elastic Materials & Fit Structure: Indirect but Essential for Leakage Control

Elastic waistbands, leg cuffs, and leak guards don’t absorb liquid but affect:

• Fit and comfort

• Side leakage prevention

High-quality spandex and soft nonwoven wrapping ensure a snug fit without irritations.

Conclusion

The absorption performance of a diaper results from the combined engineering of multiple raw materials. Choosing a reliable and experienced raw material supplier is crucial for ensuring product quality and building strong market competitiveness. We provide high-quality nonwoven fabrics, SAP, fluff pulp, breathable films, spandex yarns, and more to support global brands in producing high-performance diapers.