Sanitary Napkins Raw Material: Key Components and Their Functions

# Sanitary Napkins Raw Material: Key Components and Their Functions

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

## 1. Top Sheet

The top sheet is the layer that comes into direct contact with the skin. It is typically made from non-woven fabric or perforated film, which is soft, breathable, and quick-drying. The primary function of the top sheet is to allow liquid to pass through while keeping the surface dry and comfortable.

## 2. Absorbent Core

The absorbent core is the heart of the sanitary napkin, 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 absorption capacity and prevents leakage.

## 3. Back Sheet

The back sheet is the outermost layer of the sanitary napkin, designed to prevent leaks and provide a barrier against moisture. It is typically made from polyethylene or polypropylene film, which is waterproof yet breathable. This layer ensures that the napkin stays in place and protects clothing from stains.

## 4. Adhesive Strip

The adhesive strip is located on the underside of the back sheet. It is made from a pressure-sensitive adhesive that allows the napkin to stick securely to underwear. This component ensures the napkin remains in place during use, providing stability and preventing shifting.

## 5. Release Paper

The release paper covers the adhesive strip before use. It is usually made from silicone-coated paper or plastic film. Its primary function is to protect the adhesive until the napkin is ready to be used, ensuring it remains effective when applied.

## 6. Side Barriers

Some sanitary napkins feature side barriers or wings, which are additional flaps that fold over the edges of underwear. These barriers are made from the same materials as the top sheet and back sheet. Their purpose is to provide extra protection against leaks and enhance overall security.

## 7. Fragrance and Additives

Certain sanitary napkins include fragrances or additives to mask odors or provide a soothing effect. These components are optional and vary by brand. While they can enhance user experience, they may not be suitable for individuals with sensitive skin or allergies.

### Conclusion

The raw materials used in sanitary napkins play a crucial role in determining their performance, comfort, and reliability. From the top sheet to the adhesive strip, each component is carefully designed to meet specific functional requirements. By understanding these materials, consumers can choose products that best suit their needs and preferences, ensuring a comfortable and worry-free experience.