Sanitary Napkin Material Structure: Topsheet, Pulp and SAP

A sanitary napkin specification is built from several layers. Understanding topsheet, acquisition layer, absorbent core, backsheet, wings and packaging helps importers compare factory samples accurately.

For overseas buyers, the practical value of this page is to turn a consumer-style topic into an OEM specification checklist: product size, absorbency target, surface feel, leak guard, packaging format, MOQ, samples, quality control and shipment readiness.

Main material layers

The topsheet controls skin touch, the acquisition layer moves liquid quickly, the absorbent core stores fluid, and the backsheet prevents leakage. Wings and adhesive help the pad stay in place.

• Topsheet: cotton-feel, soft nonwoven or quick-dry surface.
• Core: fluff pulp, SAP and tissue wrapping depending on target absorbency.
• Backsheet: breathable or standard PE film.
• Wings and adhesive: fixation, comfort and underwear compatibility.

How materials affect cost

Higher SAP usage, softer surfaces, breathable films and premium individual wrapping can raise cost. The best choice is the one that matches retail price and consumer promise.

Specification sheet discipline

Ask the factory to document length, width, thickness, core weight, SAP level, packaging format and test method. This reduces misunderstandings between sample approval and mass production.

Recommended Internal Resources

Compare the dedicated disposable menstrual pants manufacturer page, the private label sanitary pads service page, and the custom sanitary pad packaging guide before confirming your RFQ. These pages help your purchasing, brand and compliance teams align on the same brief.

FAQ for Importers and Private Label Buyers

What is SAP in sanitary pads?

SAP is super absorbent polymer. It helps lock liquid in the absorbent core and reduce rewet when used correctly.

Is cotton topsheet always better?

Cotton-feel topsheets are soft, but the right choice depends on dryness, cost, consumer preference and product positioning.

Can material layers be customized?

Yes. OEM buyers can customize many layers, but MOQ and sample lead time may change.

Need a factory quote? Send your target market, product size, absorbency level, packaging quantity and estimated order volume to Nafei. The team can review your brief and suggest an OEM or ODM solution for materials / product specification and sanitary pads.