# 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 comfort of these products largely depend on the raw materials used in their production. Understanding the composition and properties of sanitary pad materials helps consumers make informed choices and manufacturers improve product quality.
## Core Components of Sanitary Pads
### 1. Top Sheet (Cover Layer)
The top sheet is the layer that comes in direct contact with the skin. It’s typically made from:
– Non-woven fabric (polypropylene or polyethylene)
– Perforated plastic film
– Silk or cotton blends for premium products
Key properties: Softness, breathability, quick-drying capability
### 2. Absorbent Core
This is the most crucial component that determines the pad’s absorption capacity. Common materials include:
– Fluff pulp (wood cellulose)
– Superabsorbent polymers (SAP)
– Cotton fibers
– Airlaid paper
Key properties: High absorption rate, liquid retention, odor control
### 3. Back Sheet
The back sheet prevents leakage and keeps moisture from reaching clothing. Materials include:
– Polyethylene film
– Breathable microporous film
– Biodegradable materials (in eco-friendly options)
Key properties: Waterproof, breathable, flexible
### 4. Adhesive Layer
This component keeps the pad in place:
– Pressure-sensitive adhesives
– Medical-grade glue
– Silicon-based adhesives for sensitive skin
Key properties: Strong adhesion, hypoallergenic, residue-free removal
## Specialized Materials in Premium Pads
### 1. Odor Control Agents
– Activated charcoal
Keyword: sanitary pad raw material
– Baking soda
– Natural plant extracts
### 2. Antibacterial Components
– Silver ions
– Tea tree oil
– Chitosan
### 3. Cooling Gel Layers
– Menthol-infused materials
– Aloe vera gel pads
– Hydrogel technology
## Material Properties Comparison
Material Type | Absorption Capacity | Breathability | Skin Friendliness
Fluff Pulp | Medium | High | Excellent
SAP | Very High | Low | Good
Cotton | Medium | High | Excellent
Synthetic Fibers | High | Medium | Good
## Environmental Considerations
Recent developments focus on sustainable materials:
– Biodegradable top sheets (bamboo, corn starch)
– Organic cotton cores
– Plant-based SAP alternatives
– Compostable back sheets
## Conclusion
The composition of sanitary pad raw materials directly affects product performance, comfort, and environmental impact. As technology advances, we’re seeing more innovative materials that combine superior absorption with skin-friendly and eco-conscious properties. Understanding these components helps both manufacturers create better products and consumers choose pads that meet their specific needs.