Sanitary Napkins Raw Material: Key Components and Their Functions

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# Sanitary Napkins Raw Material: Key Components and Their Functions

Sanitary napkins are essential personal care 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 to the absorbent core.

## 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 evenly, while the SAP locks in moisture, preventing leaks and ensuring long-lasting dryness.

## 3. Back Sheet

The back sheet is the outermost layer of the sanitary napkin, typically made from a polyethylene film. Its main function is to prevent leakage by acting as a barrier between the absorbent core and the user’s clothing. The back sheet is also designed to be breathable, allowing air to circulate and reducing the risk of irritation.

## 4. Adhesive Strip

The adhesive strip is located on the underside of the back sheet. It is usually made from a pressure-sensitive adhesive that allows the sanitary napkin to stay securely in place on the underwear. This ensures that the napkin remains in the correct position, providing maximum protection and comfort.

## 5. Release Paper

The release paper covers the adhesive strip before use. It is typically made from silicone-coated paper or film. The release paper protects the adhesive from dust and debris, ensuring that it remains effective until the napkin is ready to be used. Once removed, the adhesive is exposed, allowing the napkin to be securely attached to the underwear.

## 6. Wings (Optional)

Some sanitary napkins come with wings, which are additional flaps on the sides of the napkin. These wings are usually made from the same material as the back sheet and are designed to fold over the edges of the underwear. The primary function of the wings is to provide extra security and prevent side leakage, ensuring that the napkin stays in place during movement.

## Conclusion

Understanding the raw materials used in sanitary napkins and their functions is essential for both manufacturers and consumers. Each component plays a vital role in ensuring the product’s effectiveness, comfort, and safety. By choosing high-quality materials, manufacturers can produce sanitary napkins that meet the needs of women worldwide, providing them with the confidence and comfort they deserve.