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 both manufacturers and consumers. 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 absorbent core, top sheet, back sheet, and adhesive. Each of these components is made from specific raw materials that contribute to the overall functionality and comfort of the pad.

### Absorbent Core

The absorbent core is the heart of the sanitary pad, responsible for absorbing and retaining menstrual fluid. It is typically made from a combination of wood pulp and superabsorbent polymers (SAP). Wood pulp provides bulk and structure, while SAP enhances the pad’s absorbency by turning liquid into gel.

### Top Sheet

The top sheet is the layer that comes into direct contact with the skin. It is usually 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, keeping the user dry and comfortable.

### 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. These materials are impermeable to liquids, ensuring that menstrual fluid does not seep through to clothing.

### Adhesive

Adhesive is used to secure the sanitary pad to the underwear. It is typically a pressure-sensitive adhesive that provides a strong yet gentle hold. The adhesive must be hypoallergenic to prevent skin irritation.

## Properties of Raw Materials

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

### Absorbency

High absorbency is crucial for the absorbent core. The combination of wood pulp and SAP ensures that the pad can handle varying levels of menstrual flow without leakage.

### Softness

The top sheet must be soft to prevent irritation and chafing. Non-woven fabrics and perforated films are chosen for their gentle texture.

### Breathability

Breathability is essential to prevent moisture buildup, which can lead to discomfort and skin issues. The top sheet and back sheet materials are designed to allow air circulation.

### Leakage Prevention

The back sheet must be impermeable to liquids to prevent leaks. Polyethylene and polypropylene films are effective barriers against menstrual fluid.

### Hypoallergenic

All materials, especially the adhesive, must be hypoallergenic to minimize the risk of allergic reactions and skin irritation.

## Conclusion

The raw materials used in sanitary pads are carefully selected to ensure optimal performance, comfort, and safety. From the absorbent core to the adhesive, each component plays a vital role in the overall functionality of the pad. Understanding these materials helps consumers make informed choices and manufacturers produce high-quality products.