Sanitary Pad Raw Materials: Key Components and Their Functions

June 29, 2025 / By

# Sanitary Pad Raw Materials: Key Components and Their Functions

## Introduction to Sanitary Pad Composition

Sanitary pads are essential feminine hygiene products designed to absorb menstrual flow while providing comfort and protection. The effectiveness of these products depends on carefully selected raw materials that work together to create a safe, absorbent, and comfortable experience. Understanding these components helps consumers make informed choices about the products they use.

## Core Absorbent Materials

### Wood Pulp (Fluff Pulp)

The primary absorbent material in most sanitary pads is wood pulp, often referred to as fluff pulp. This natural cellulose fiber has excellent liquid absorption and retention properties. Manufacturers typically use bleached softwood pulp from sustainable sources, which is processed to create a fluffy, absorbent structure.

### Superabsorbent Polymers (SAP)

Modern sanitary pads incorporate superabsorbent polymers (SAP) to enhance absorption capacity. These synthetic materials can absorb many times their weight in liquid, transforming it into a gel that prevents leakage. SAP allows for thinner pad designs while maintaining high performance.

## Top Sheet Materials

### Nonwoven Fabrics

The top layer that contacts the skin is usually made from nonwoven polypropylene or polyethylene. These materials are chosen for their:

– Soft texture to prevent irritation
– Quick-dry properties to maintain surface dryness
– Breathability to reduce moisture buildup
– Smooth surface for comfort during movement

## Back Sheet Components

### Plastic Films

The back sheet typically consists of polyethylene or polypropylene films that:

– Prevent leaks by forming a liquid barrier
– Allow some breathability in premium products
– Provide structural integrity to the pad
– Feature adhesive strips for secure attachment to underwear

## Additional Functional Components

### Adhesives

Specialized adhesives serve multiple purposes:

– Fixing layers together during manufacturing
– Securing the pad to underwear (attachment adhesive)
– Providing wing adhesives for better fit and protection

### Release Papers

These temporary protective layers cover adhesive areas until use, ensuring:

– Clean application
– Preservation of adhesive properties
– Easy removal when ready to use

## Safety and Quality Considerations

Manufacturers must carefully select raw materials that meet strict safety standards:

– Hypoallergenic properties to minimize skin irritation
– Absence of harmful chemicals like dioxins or phthalates
– Compliance with international hygiene product regulations
– Dermatologically tested components

## Environmental Considerations

Recent innovations focus on more sustainable material choices:

– Biodegradable top sheets from plant-based materials
– Organic cotton alternatives for sensitive skin
– Chlorine-free pulp processing
– Reduced plastic content in back sheets

## Conclusion

The combination of these carefully selected sanitary pad raw materials creates products that effectively manage menstrual flow while prioritizing comfort and safety. As technology advances, we continue to see improvements in both performance and environmental sustainability of these essential hygiene products.