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 initial absorption, while SAP enhances the pad’s capacity to retain liquid.

### 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 for breathability. Some back sheets also feature a cloth-like finish for added comfort.

### Adhesive

Adhesives are used to secure the sanitary pad to the underwear. These adhesives are typically pressure-sensitive and are designed to be strong enough to hold the pad in place without causing discomfort or leaving residue on clothing.

## 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

Materials used in the top sheet and back sheet must be soft to prevent irritation and ensure comfort during use. Non-woven fabrics and cloth-like finishes are preferred for their gentle touch.

### Absorbency and Retention

The absorbent core must have high absorbency and retention capabilities to handle varying flow levels. The combination of fluff pulp and SAP ensures that the pad can absorb and lock in moisture effectively.

### Breathability

Breathability is crucial to prevent discomfort and skin irritation. The top sheet and back sheet materials are designed to allow air circulation, reducing the risk of moisture buildup and promoting a dry, comfortable environment.

### Leakage Prevention

The back sheet and adhesive must work together to prevent leaks. The impermeable nature of the back sheet, combined with the strong adhesive, ensures that the pad stays in place and contains menstrual fluid effectively.

## Conclusion

The raw materials used in sanitary pads play a vital role in their performance and user satisfaction. By understanding the composition and properties of these materials, manufacturers can produce high-quality sanitary pads that meet the needs of women worldwide. Ensuring softness, absorbency, breathability, and leakage prevention are key factors in creating a reliable and comfortable product.