Sanitary Pad Raw Materials: Key Components and Their Functions
# Sanitary Pad Raw Materials: Key Components and Their Functions
## Introduction to Sanitary Pad Composition
Sanitary pads are essential feminine hygiene products designed to absorb menstrual flow while providing comfort and protection. Understanding the raw materials used in their production helps consumers make informed choices about the products they use.
## Core Components of Sanitary Pads
### 1. Top Sheet (Cover Stock)
The top layer that comes in direct contact with the skin is typically made from:
– Non-woven polypropylene
– Perforated plastic film
– Cotton or bamboo fiber blends
This layer needs to be soft, breathable, and quick-drying to prevent skin irritation.
### 2. Absorbent Core
The middle layer responsible for fluid absorption consists of:
– Fluff pulp (wood cellulose)
– Superabsorbent polymers (SAP)
– Sometimes includes cotton or rayon fibers
The SAP can absorb many times its weight in liquid, while the fluff pulp helps distribute the fluid evenly.
### 3. Back Sheet
The waterproof bottom layer is usually made from:
– Polyethylene film
– Breathable microporous films
– Biodegradable materials in eco-friendly options
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This layer prevents leakage while allowing some breathability to reduce moisture buildup.
## Additional Components
### Adhesive Materials
– Pressure-sensitive adhesive for pad attachment to underwear
– Hot melt adhesives for bonding layers together
### Release Paper
Protective covering for the adhesive strip that’s removed before use, typically made from silicone-coated paper or plastic film.
### Fragrance and Additives
Some pads include:
– Odor-neutralizing agents
– Aloe vera or chamomile for skin soothing
– Antimicrobial treatments
## Environmental Considerations
Recent innovations focus on sustainable materials:
– Organic cotton topsheets
– Biodegradable backsheets
– Plant-based SAP alternatives
– Compostable packaging
## Conclusion
Understanding sanitary pad raw materials helps consumers choose products that align with their comfort needs, skin sensitivities, and environmental values. Manufacturers continue to innovate with new materials that improve performance while reducing environmental impact.
