Sanitary Pad Raw Materials — Complete List for Manufacturers
Sanitary pads are multi-layer hygiene products designed for absorption, comfort, and leak protection. For manufacturers, selecting the right raw materials is critical to ensure product quality, cost efficiency, and performance consistency.
This guide provides a complete, layer-by-layer list of sanitary napkin raw materials used in modern manufacturing.
🔹 1. Top Sheet (Cover Layer)
Function: Skin-contact layer that allows quick liquid penetration while staying dry.
Common Materials:
- Hydrophilic polypropylene (PP) nonwoven fabric
- Spunlace nonwoven (viscose/polyester)
- Perforated PE film
- Cotton or bamboo nonwoven (eco variants)
Key Features:
- Soft & breathable
- Fast liquid transfer
- Skin-friendly finish
🔹 2. Acquisition Distribution Layer (ADL)
Function: Distributes fluid evenly into the core and improves absorption speed.
Materials Used:
- Polyester nonwoven
- Bicomponent fiber nonwoven
- Airlaid acquisition sheets
- Through-air bonded nonwoven
Benefits:
- Reduces rewet
- Enhances dryness
- Improves ultra-thin pad performance
🔹 3. Absorbent Core (Main Layer)
Function: Core absorption and retention of menstrual fluid.
Key Raw Materials:
- Fluff pulp (wood pulp)
- Super Absorbent Polymer (SAP)
- Airlaid paper
- Tissue layers
- Natural fibers (cotton/bamboo)
Important Insight:
- SAP can absorb 20–30x its weight, enabling thin yet highly absorbent pads.
🔹 4. Back Sheet (Leak-Proof Layer)
Function: Prevents leakage and provides structural support.
Materials:
- Polyethylene (PE) film
- Breathable microporous film
- Laminated nonwoven + PE
Key Properties:
- Waterproof
- Breathable (premium variants)
- Flexible & durable
🔹 5. Adhesive System
Function: Keeps the pad securely attached to underwear.
Components:
- Hot melt adhesive (pressure-sensitive)
- Construction glue (layer bonding)
Features:
- Strong grip
- Residue-free removal
- Heat-resistant
🔹 6. Release Paper (Siliconized Paper)
Function: Protects adhesive before use.
Materials:
- Silicone-coated release paper
- Glassine paper
Benefits:
- Easy peel-off
- Maintains adhesive quality
🔹 7. Wings & Side Barriers (Optional)
Function: Prevent side leakage and improve fit.
Materials:
- Nonwoven fabric
- Elastic materials
- PE film laminates
🔹 8. Packaging Materials
Function: Hygiene protection and branding.
Types:
- Individual wrap (PE film or nonwoven)
- Printed BOPP/PE packaging
- Outer polybags or cartons
🔹 9. Additives & Functional Components
Used in premium or specialized pads:
- Fragrance / odor control agents
- Antibacterial coatings
- Negative ion chips
- Aloe vera or herbal layers
🔹 Complete Sanitary Pad Raw Material List (Quick Overview)
| Layer | Raw Materials |
|---|---|
| Top Sheet | PP nonwoven, spunlace, PE film |
| ADL | Polyester nonwoven, airlaid |
| Absorbent Core | Fluff pulp, SAP, tissue |
| Back Sheet | PE film, breathable film |
| Adhesive | Hot melt glue |
| Release Paper | Silicone-coated paper |
| Wings | Nonwoven + elastic |
| Packaging | PE/BOPP films |
🔹 Key Takeaways for Manufacturers
- A sanitary pad typically contains 6–8 functional layers.
- The absorbent core + top sheet directly impact product performance.
- Material selection affects cost, absorbency, comfort, and branding.
- Bulk sourcing ensures consistent quality and scalable production.
✅ Conclusion
Understanding the complete sanitary pad raw materials list helps manufacturers optimize production, reduce costs, and create high-performance hygiene products. From nonwoven fabrics to SAP and PE films, each component plays a crucial role in delivering comfort, safety, and reliability.
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