Sanitary Pads Raw Material Composition and Properties

# Sanitary Pads Raw Material Composition and Properties

Sanitary pads are essential hygiene products used by millions of women worldwide. Understanding the raw materials that go into their production is crucial for ensuring quality, comfort, and safety. 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

Adhesive is used to secure the sanitary pad in place within the underwear. It is typically a pressure-sensitive adhesive that is safe for skin contact and provides a strong yet gentle hold.

## Properties of Raw Materials

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

### Softness and Comfort

Materials like non-woven fabrics and perforated films are chosen for their softness, ensuring that the pad is comfortable to wear even during extended periods.

### Absorbency and Retention

The combination of fluff pulp and SAP in the absorbent core ensures high absorbency and retention, preventing leaks and keeping the user dry.

### Breathability

Breathable materials like polyethylene and polypropylene films in the back sheet allow air to circulate, reducing the risk of irritation and discomfort.

### Safety and Hypoallergenic Properties

All materials used in sanitary pads must be safe for skin contact and hypoallergenic to prevent allergic reactions and skin irritations.

## Conclusion

The raw materials used in sanitary pads are carefully selected to provide a balance of comfort, absorbency, and safety. Understanding the composition and properties of these materials helps in appreciating the engineering behind this everyday essential. By choosing high-quality materials, manufacturers can ensure that sanitary pads meet the needs of women, providing reliable protection and comfort during menstruation.