Sanitary Pads Raw Material Composition and Properties

# Sanitary Pads Raw Material Composition and Properties

Sanitary pads are essential personal care products designed to provide comfort and hygiene during menstruation. The effectiveness of these products largely depends on the quality and composition of their raw materials. Understanding the materials used in sanitary pads can help consumers make informed choices and appreciate the technology behind these everyday items.

## Core Components of Sanitary Pads

The primary materials used in the manufacture of sanitary pads include:

– Top Sheet: This is the layer that comes into direct contact with the skin. It is usually made from a non-woven fabric or a perforated film that is soft, breathable, and quick-drying.
– Absorbent Core: The core is the most critical part of the pad, responsible for absorbing menstrual flow. It is typically composed of a blend of wood pulp and superabsorbent polymers (SAP).
– Back Sheet: This is the bottom layer of the pad, designed to prevent leakage. It is usually made from a waterproof material like polyethylene.
– Adhesive: A pressure-sensitive adhesive is applied to the back sheet to keep the pad in place on underwear.
– Release Paper: This is a protective layer that covers the adhesive before use. It is peeled off when the pad is ready to be used.

## Properties of Sanitary Pad Materials

Each component of a sanitary pad is chosen for its specific properties:

– Top Sheet: Must be hypoallergenic, soft, and allow for quick absorption of fluids to keep the skin dry.
– Absorbent Core: Should have high absorbency and retention capabilities to lock in moisture and prevent leakage.
– Back Sheet: Needs to be impermeable to liquids to ensure no leakage occurs, while also being breathable to reduce the risk of skin irritation.
– Adhesive: Should be strong enough to keep the pad securely in place, yet gentle enough to not damage fabrics or cause discomfort upon removal.
– Release Paper: Must be easy to remove and should not leave any residue on the adhesive.

## Environmental Considerations

With growing environmental concerns, the sanitary pad industry is exploring more sustainable materials. Biodegradable options for the top sheet and back sheet, such as those made from bamboo or cornstarch, are becoming more prevalent. Additionally, the use of organic cotton in the absorbent core is gaining popularity due to its natural properties and lower environmental impact.

## Conclusion

The composition and properties of sanitary pad raw materials are crucial for the performance and comfort of the product. As technology advances, we can expect to see more innovative and eco-friendly materials being used in the production of sanitary pads, offering better protection and sustainability for consumers worldwide.