Sanitary Pads Raw Material Composition and Properties

# Sanitary Pads Raw Material Composition and Properties

Sanitary pads are essential personal care products designed to provide comfort and hygiene during menstruation. Understanding the raw materials used in their production is crucial for both manufacturers and consumers. This article delves into the composition and properties of the raw materials commonly 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 raw materials that contribute to the overall functionality and comfort 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 removed without leaving residue.

## Properties of Raw Materials

The raw materials used in sanitary pads are selected based on several key properties:

### Softness and Comfort

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

### Absorbency

The combination of fluff pulp and superabsorbent polymers provides high absorbency, ensuring that the pad can handle varying levels of menstrual flow.

### Breathability

Breathable materials like polyethylene and polypropylene films help to reduce moisture buildup, keeping the skin dry and comfortable.

### Leakage Prevention

The impermeable nature of the back sheet materials ensures that menstrual fluid is contained within the pad, preventing leaks.

### Adhesive Strength

The adhesives used must be strong enough to keep the pad securely in place, yet easy to remove without causing discomfort or leaving residue on clothing.

## Conclusion

The raw materials used in sanitary pads are carefully selected to provide a balance of comfort, absorbency, and leakage prevention. Understanding the composition and properties of these materials can help consumers make informed choices and appreciate the engineering behind these essential personal care products.