# Sanitary Napkin Raw Materials: Essential Components for Hygiene Products
## Introduction to Sanitary Napkin Components
Sanitary napkins are essential feminine hygiene products used by millions of women worldwide. The effectiveness and comfort of these products depend heavily on the quality and combination of their raw materials. Understanding these components helps consumers make informed choices and manufacturers develop better products.
## Core Layers and Their Materials
### Top Sheet (Cover Stock)
The top layer that comes in direct contact with the skin is typically made from:
– Nonwoven polypropylene
Keyword: sanitary napkin raw materials
– Polyethylene
– Rayon
– Cotton blends
This layer needs to be soft, breathable, and quickly absorb liquid to keep the skin dry.
### Absorbent Core
The middle layer responsible for liquid absorption consists of:
– Fluff pulp (wood cellulose)
– Superabsorbent polymers (SAP)
– Sometimes cotton or other natural fibers
The combination of these materials determines the pad’s absorption capacity and retention properties.
### Back Sheet
The waterproof bottom layer is usually composed of:
– Polyethylene film
– Microporous breathable films
– Nonwoven fabric laminates
This layer prevents leaks while some advanced versions allow moisture vapor to escape for better comfort.
## Additional Components
### Adhesives
Sanitary napkins use several types of adhesives:
– Pressure-sensitive adhesives for attachment to underwear
– Hot melt adhesives for layer bonding
– Construction adhesives for structural integrity
### Release Paper
The protective backing that covers the adhesive before use is typically:
– Silicon-coated paper
– Plastic film
### Fragrance and Additives
Some products may include:
– Deodorizing agents
– Aloe vera or vitamin E for skin care
– Antimicrobial treatments
## Environmental Considerations
With growing environmental awareness, manufacturers are exploring:
– Biodegradable materials
– Organic cotton
– Plant-based plastics
– Chlorine-free pulp
## Quality and Safety Standards
All raw materials must comply with:
– FDA regulations
– ISO standards
– OEKO-TEX certifications
– Other regional safety requirements
## Conclusion
The combination and quality of sanitary napkin raw materials directly affect product performance, comfort, and safety. Continuous innovation in material science leads to improved feminine hygiene products that better meet women’s needs while addressing environmental concerns.
