Sanitary Pad Raw Material Composition and Properties

# Sanitary Pad Raw Material Composition and Properties

## Introduction to Sanitary Pad Components

Sanitary pads are essential feminine hygiene products designed to absorb menstrual flow. Understanding their raw material composition helps consumers make informed choices about the products they use.

## Core Materials in Sanitary Pads

### 1. Top Layer (Cover Stock)

The top layer directly contacts the skin and is typically made from:

– Non-woven fabric (polypropylene or polyethylene)
– Perforated plastic film
– Cotton or bamboo fiber blends

Properties: Soft, breathable, quick-drying, and hypoallergenic

### 2. Absorbent Core

The absorbent core consists of:

– Fluff pulp (wood cellulose)
– Superabsorbent polymer (SAP)
– Sometimes includes cotton or rayon fibers

Properties: High liquid absorption capacity, moisture retention, and odor control

### 3. Back Sheet

The waterproof backing is usually composed of:

– Polyethylene film
– Breathable microporous film
– Biodegradable alternatives (PLA or starch-based materials)

Properties: Liquid-proof, flexible, and comfortable

### 4. Adhesive Components

– Pressure-sensitive adhesive for pad attachment
– Hot melt adhesive for layer bonding

Properties: Strong yet gentle adhesion, skin-friendly

## Specialized Materials in Premium Pads

Some advanced sanitary pads may include:

– Activated charcoal layers for enhanced odor control
– Aloe vera or vitamin E coatings for skin comfort
– Antibacterial treatments (silver ions or plant extracts)
– Biodegradable or organic material options

## Safety and Quality Considerations

Manufacturers must ensure:

– All materials are dermatologically tested
– No harmful chemicals (dioxins, pesticides, or fragrances)
– Proper absorption and leakage protection
– Breathability to prevent skin irritation

Understanding these material components helps consumers evaluate product quality, comfort, and safety when choosing sanitary protection.