Sanitary Pad Raw Material Composition and Properties

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Sanitary Pad Raw Material Composition and Properties

Sanitary pads are essential hygiene products used by millions of women worldwide. Understanding the raw materials used in their production is crucial for ensuring comfort, safety, and effectiveness. This article explores the composition and properties of sanitary pad raw materials.

Core Components of Sanitary Pads

The main components of sanitary pads include:

  • Top Sheet: Usually made of non-woven polypropylene or perforated film for softness and quick liquid absorption

  • Absorbent Core: Typically composed of wood pulp (fluff pulp) and superabsorbent polymers (SAP)

  • Back Sheet: Made of polyethylene film to prevent leakage

  • Adhesive: Used to secure the pad to underwear

  • Release Paper: Protects the adhesive before use

Properties of Key Raw Materials

1. Top Sheet Materials

The top sheet must be soft, breathable, and allow rapid liquid penetration. Common materials include:

  • Non-woven polypropylene (hydrophobic)

  • Perforated polyethylene film

  • Specialty fabrics with moisture-wicking properties

2. Absorbent Core Materials

The absorbent core combines two main components:

  • Fluff Pulp: Provides bulk absorption and liquid distribution

  • Superabsorbent Polymers (SAP): Can absorb many times their weight in liquid, converting it to gel

3. Back Sheet Materials

The back sheet must be:

  • Liquid-impermeable

  • Breathable (in premium products)

  • Flexible and quiet during use

Special Considerations in Material Selection

Manufacturers consider several factors when selecting raw materials:

  • Skin Safety: Materials must be hypoallergenic and non-irritating

  • Absorption Capacity: Must match the intended product use (light, regular, or heavy flow)

  • Environmental Impact: Increasing demand for biodegradable and compostable materials

  • Cost Effectiveness: Balancing performance with production costs

Emerging Trends in Sanitary Pad Materials

The industry is evolving with new material innovations:

  • Plant-based and biodegradable materials

  • Antibacterial treatments for odor control

  • Thinner designs with equal or better absorption

  • Organic cotton options for sensitive skin

Understanding these raw materials helps consumers make informed choices and manufacturers develop better products that meet diverse needs while addressing environmental concerns.