# Sanitary Napkin Raw Materials: Essential Components for Hygiene Products

## Introduction to Sanitary Napkin Components

Sanitary napkins are essential feminine hygiene products used by millions of women worldwide. The effectiveness and comfort of these products depend heavily on the quality and combination of their raw materials. Understanding the composition of sanitary napkins helps consumers make informed choices and manufacturers improve product quality.

## Core Materials in Sanitary Napkins

### 1. Top Sheet (Cover Stock)

The top layer that comes in direct contact with the skin is typically made from:
– Non-woven fabric (polypropylene or polyethylene)
– Perforated plastic film
– Cotton or cotton blends for premium products

This layer must be soft, breathable, and quickly absorbent to prevent irritation and maintain dryness.

### 2. Absorbent Core

The heart of the sanitary napkin consists of:
– Fluff pulp (wood cellulose)
– Superabsorbent polymers (SAP)
– Combination of both materials

The absorbent core determines the product’s capacity to retain fluid and prevent leakage.

### 3. Back Sheet

The bottom layer is usually composed of:
– Polyethylene film
– Breathable microporous film
– Cloth-like materials in premium products

This layer prevents leakage while allowing some breathability in higher-quality products.

## Additional Components

### 1. Adhesive Strips

Most sanitary napkins include:
– Pressure-sensitive adhesive for attachment to underwear
– Release paper to protect the adhesive before use

### 2. Wings (for winged designs)

Optional side flaps may contain:
– Non-woven fabric
– Additional adhesive strips

### 3. Packaging Materials

Individual and outer packaging typically uses:
– Polyethylene film
– Paper wrappers
– Biodegradable materials in eco-friendly options

## Quality Considerations

When selecting raw materials, manufacturers must consider:
– Hypoallergenic properties
– Absorbency rates
– Breathability
– Environmental impact
– Cost-effectiveness

## Emerging Trends in Materials

Recent developments include:
– Organic cotton topsheets
– Bamboo fiber components
– Biodegradable backsheets
– Chlorine-free pulp
– Plant-based SAP alternatives

The continuous innovation in sanitary napkin raw materials aims to improve comfort, performance, and environmental sustainability while maintaining product affordability and accessibility.