# Sanitary Pads Raw Material: Key Components and Their Functions

Sanitary pads are essential personal care products designed to provide comfort and hygiene during menstruation. The effectiveness of a sanitary pad largely depends on the quality and composition of its raw materials. Understanding the key components and their functions can help consumers make informed choices. Below, we explore the primary materials used in sanitary pads and their roles.

## 1. Top Sheet

The top sheet is the layer that comes into direct contact with the skin. It is typically made from a non-woven fabric or a perforated film. The primary function of the top sheet is to provide a soft, dry, and comfortable surface while allowing menstrual fluid to pass through quickly to the absorbent core.

## 2. Absorbent Core

The absorbent core is the most critical component of a sanitary pad. It is usually made from a blend of wood pulp and superabsorbent polymers (SAP). The wood pulp provides bulk and helps distribute the fluid evenly, while the SAP absorbs and locks in the liquid, preventing leakage and ensuring dryness.

## 3. Back Sheet

The back sheet is the outermost layer of the sanitary pad, typically made from a waterproof material like polyethylene. Its main function is to prevent any leakage from the pad onto clothing. The back sheet also provides structural integrity to the pad, ensuring it stays in place during use.

## 4. Adhesive

Adhesive is applied to the back sheet to keep the sanitary pad securely attached to the underwear. This ensures that the pad stays in place, providing comfort and preventing any movement that could lead to leakage. The adhesive used is usually hypoallergenic to minimize the risk of skin irritation.

## 5. Release Paper

The release paper is a protective layer that covers the adhesive before the pad is used. It is typically made from silicone-coated paper or plastic film. The release paper is removed just before applying the pad to the underwear, exposing the adhesive for secure placement.

## 6. Fragrance and Additives

Some sanitary pads include fragrance or other additives to mask odor or provide additional comfort. However, these components are optional and can sometimes cause irritation for individuals with sensitive skin. It’s essential to choose pads with or without these additives based on personal preference and skin sensitivity.

## Conclusion

The raw materials used in sanitary pads play a crucial role in their performance and comfort. From the top sheet to the absorbent core and back sheet, each component has a specific function that contributes to the overall effectiveness of the product. By understanding these materials and their roles, consumers can make better-informed decisions when selecting sanitary pads that meet their needs.

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