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# 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 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. The materials used must be soft, breathable, and quick-drying to ensure comfort and prevent irritation.

### 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 softness, while SAP enhances the pad’s absorbency and retention capabilities.

### 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. This layer also often includes a non-slip adhesive to keep the pad in place.

### Adhesive

Adhesives are used to secure the sanitary pad to the underwear. They are typically made from pressure-sensitive adhesives that provide 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.

### Softness and Comfort

Materials used in the top sheet and absorbent core must be soft and comfortable to prevent chafing and irritation. Non-woven fabrics and fluff pulp are chosen for their gentle texture.

### Absorbency and Retention

The absorbent core must have high absorbency and retention capabilities to handle menstrual flow efficiently. Superabsorbent polymers are key to achieving this, as they can absorb many times their weight in liquid.

### Breathability

Breathability is essential to prevent moisture buildup and maintain skin health. The top sheet and back sheet materials are designed to allow air circulation while keeping liquids contained.

### Hypoallergenic

All materials used in sanitary pads must be hypoallergenic to minimize the risk of allergic reactions. This is particularly important for the adhesives and top sheet, which are in direct contact with the skin.

## Conclusion

The raw materials used in sanitary pads are carefully selected to ensure comfort, absorbency, and safety. Understanding the composition and properties of these materials helps in appreciating the technology and innovation behind this everyday essential. By choosing high-quality materials, manufacturers can produce sanitary pads that meet the needs and expectations of consumers worldwide.