Sanitary Pads Raw Material Composition and Properties

March 08, 2025 / By

# 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 raw 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 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 ability to absorb and lock in moisture.

### 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 to the underwear. It is typically a pressure-sensitive adhesive that provides a strong yet gentle hold, ensuring the pad stays in place without causing discomfort.

## Properties of Raw Materials

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

### Softness

Softness is crucial for the top sheet to ensure comfort and prevent irritation. Non-woven fabrics and perforated films are engineered to be gentle on the skin.

### Absorbency

The absorbent core must have high absorbency to handle menstrual flow effectively. The combination of fluff pulp and SAP ensures rapid absorption and retention of fluids.

### Breathability

Breathability is essential to prevent moisture buildup and maintain skin health. The back sheet’s microporous structure allows air to circulate while keeping liquids contained.

### Adhesion

The adhesive must provide a secure hold without causing discomfort or leaving residue on clothing. Pressure-sensitive adhesives are designed to balance strength and gentleness.

## Conclusion

The raw materials used in sanitary pads are carefully selected and engineered to provide comfort, protection, and reliability. Understanding the composition and properties of these materials helps in appreciating the technology and innovation behind everyday hygiene products. By continuously improving these materials, manufacturers can enhance the overall user experience and contribute to better menstrual health management.