Sanitary Pad Raw Material Composition and Properties

# Sanitary Pad Raw Material Composition and Properties

Sanitary pads are essential hygiene products used by millions of women worldwide. Understanding the raw materials that make up these products is crucial for ensuring their safety, comfort, and effectiveness. This article delves into the composition and properties of the raw materials used in sanitary pads.

## Core Components of Sanitary Pads

The primary components of sanitary pads include the top sheet, absorbent core, back sheet, and adhesive. Each of these components is made from specific materials that contribute to the overall functionality of the pad.

### Top Sheet

The top sheet is the layer that comes into direct contact with the skin. It is typically made from non-woven fabrics or perforated films. These materials are chosen for their softness, breathability, and ability to quickly wick moisture away from the skin.

### Absorbent Core

The absorbent core is the heart of the sanitary pad, responsible for absorbing and retaining menstrual fluid. It is usually composed of a blend of fluff pulp and superabsorbent polymers (SAP). Fluff pulp provides bulk and structure, while SAP enhances the pad’s absorbency by turning liquid into gel.

### Back Sheet

The back sheet is the outermost layer of the sanitary pad, designed to prevent leakage. It is commonly made from polyethylene or polypropylene films, which are impermeable to liquids but allow air to pass through, ensuring breathability.

### Adhesive

Adhesives are used to secure the sanitary pad to the underwear. These adhesives are typically pressure-sensitive and made from synthetic rubber or acrylic compounds. They are designed to be strong enough to hold the pad in place but gentle enough to be easily removed without leaving residue.

## Properties of Raw Materials

The raw materials used in sanitary pads must possess specific properties to ensure the product’s effectiveness and user comfort.

### Softness and Comfort

The top sheet and other materials that come into contact with the skin must be soft and non-irritating. This is crucial for preventing discomfort and skin irritation during use.

### Absorbency and Retention

The absorbent core must have high absorbency and retention capabilities to effectively manage menstrual flow. This ensures that the pad remains dry and comfortable for extended periods.

### Breathability

Breathability is essential to prevent moisture buildup and maintain skin health. Materials like non-woven fabrics and perforated films allow air to circulate, reducing the risk of irritation and infection.

### Leakage Prevention

The back sheet and other barrier materials must be impermeable to liquids to prevent leakage. This is vital for maintaining hygiene and preventing embarrassing situations.

### Adhesive Strength

The adhesive must provide a secure hold without causing discomfort or leaving residue. This ensures that the pad stays in place during use and can be easily removed afterward.

## Conclusion

Understanding the raw material composition and properties of sanitary pads is essential for appreciating the technology and engineering that goes into these everyday products. By selecting materials that offer softness, absorbency, breathability, and leakage prevention, manufacturers can create sanitary pads that provide comfort, safety, and reliability for users worldwide.