Sanitary Napkins Raw Material: Key Components and Their Functions

# Sanitary Napkins Raw Material: Key Components and Their Functions

Sanitary napkins 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. Below, we explore the key components of sanitary napkins and their respective functions.

## 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.

## 2. Absorbent Core

The absorbent core is the heart of the sanitary napkin. It is usually composed of a blend of wood pulp and superabsorbent polymers (SAP). The wood pulp provides bulk and helps distribute the fluid, while the SAP locks in moisture, preventing leakage and ensuring long-lasting dryness.

## 3. Back Sheet

The back sheet is the outermost layer of the sanitary napkin. It is typically made from a polyethylene film or a breathable material. The back sheet serves as a barrier to prevent leakage and to keep the napkin in place. Breathable back sheets also help reduce moisture buildup, enhancing comfort.

## 4. Adhesive

Adhesive is applied to the back sheet to secure the sanitary napkin to the underwear. It is usually a pressure-sensitive adhesive that provides a strong yet gentle hold. The adhesive must be strong enough to keep the napkin in place but easy to remove without leaving residue.

## 5. Release Paper

The release paper is a protective layer that covers the adhesive before use. It is typically made from silicone-coated paper or film. The release paper is peeled off to expose the adhesive when the napkin is ready to be used.

## 6. Fragrance and Additives

Some sanitary napkins include fragrance or additives to provide a pleasant scent or additional comfort. However, these components are optional and may not be suitable for all users, especially those with sensitive skin or allergies.

## Conclusion

The raw materials used in sanitary napkins play a vital role in their performance and user experience. From the top sheet to the adhesive, each component is carefully selected and engineered to provide maximum comfort, protection, and reliability. Understanding these materials helps consumers make informed choices and ensures the production of high-quality sanitary products.