# Sanitary Pad Raw Material Composition and Properties
## Introduction to Sanitary Pad Materials
Sanitary pads are essential feminine hygiene products designed to absorb menstrual flow. The quality and performance of these products largely depend on their raw material composition. Understanding the materials used in sanitary pad production helps consumers make informed choices and manufacturers improve product quality.
## Core Components of Sanitary Pads
### 1. Top Sheet (Cover Stock)
The top sheet is the layer that comes in direct contact with the skin. It’s typically made from:
– Non-woven polypropylene or polyethylene
– Perforated plastic films
– Soft, breathable materials with quick-dry properties
Key properties: Softness, breathability, and rapid liquid transfer to the absorption layer
### 2. Absorbent Core
This is the most critical component that determines the pad’s absorption capacity. Common materials include:
– Fluff pulp (wood cellulose)
– Superabsorbent polymers (SAP)
Keyword: sanitary pad raw material
– Combination of both materials
The absorbent core can hold up to 10 times its weight in liquid, with SAP being particularly effective at locking in moisture.
### 3. Back Sheet
The back sheet prevents leakage and is usually composed of:
– Polyethylene film
– Breathable microporous films
– Non-woven materials with waterproof coatings
Properties: Moisture-proof, breathable, and comfortable against clothing
### 4. Adhesive Components
– Pressure-sensitive adhesive for attachment to underwear
– Release paper to protect the adhesive before use
## Additional Features in Premium Pads
Modern sanitary pads often include extra components for enhanced comfort and performance:
– Side barriers or wings for better leakage protection
– Odor-control agents
– Aloe vera or other soothing additives
– Antibacterial treatments
## Material Properties and Performance Factors
### Absorption Capacity
Determined by the combination of fluff pulp and SAP ratio. Higher SAP content generally means better absorption but may increase cost.
### Breathability
Important for skin health, influenced by the top sheet and back sheet materials. Breathable materials reduce moisture buildup and irritation.
### Softness and Comfort
Affected by the top sheet material and the overall pad construction. Premium pads often use specially treated non-wovens for superior softness.
### Environmental Considerations
Many manufacturers are now developing:
– Biodegradable materials
– Organic cotton options
– Chlorine-free bleaching processes
– Reduced plastic components
## Safety and Quality Standards
All materials used in sanitary pad production must meet strict safety regulations:
– Hypoallergenic properties
– Free from harmful chemicals
– Dermatologically tested
– Compliance with international standards (FDA, EU regulations)
Understanding the composition and properties of sanitary pad raw materials helps consumers choose products that best meet their needs while ensuring comfort, protection, and health safety during menstrual periods.