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Sanitary Pad Raw Material Composition and Properties

Sanitary pads are essential hygiene products designed to provide comfort and protection during menstruation. Understanding the raw materials used in their production helps consumers make informed choices. This article explores the composition and properties of sanitary pad raw materials.

Core Absorbent Layer

The primary component of a sanitary pad is its absorbent core, typically made from:

• Wood pulp: Provides bulk absorption and liquid retention
• Superabsorbent polymers (SAP): Polyacrylate-based materials that can absorb many times their weight in liquid
• Airlaid paper: A non-woven material that helps distribute liquid evenly

Top Sheet Materials

The layer in direct contact with skin is designed for comfort and dryness:

• Polypropylene non-woven fabric: Soft, breathable, and quick-drying
• Perforated plastic film: Creates a dry surface feel
• Cotton cover: Used in premium products for enhanced softness

Back Sheet Components

The waterproof backing prevents leaks and protects clothing:

• Polyethylene film: Provides liquid barrier properties
• Breathable microporous film: Allows vapor transmission while blocking liquids
• Adhesive strips: Keep the pad securely in place

Additional Components

Modern sanitary pads may include:

• Odor control agents: Such as activated charcoal or baking soda
• Aloe vera or vitamin E: For skin soothing properties
• Antibacterial treatments: To maintain hygiene

Material Properties

Key characteristics of sanitary pad materials include:

• High absorption capacity
• Moisture-wicking ability
• Breathability
• Hypoallergenic properties
• Softness and comfort
• Biodegradability (in eco-friendly options)

Manufacturers continue to innovate with new materials that improve performance while addressing environmental concerns. The choice of raw materials significantly impacts the pad’s effectiveness, comfort, and environmental footprint.