Chitosan vs. Rayon for Sanitary Pad - What is The Difference?

Last Updated May 21, 2025

Chitosan offers superior antibacterial and moisture-retention properties compared to rayon, enhancing comfort and hygiene in sanitary pads. Rayon is highly absorbent but lacks natural antimicrobial features, making chitosan a more effective material for preventing infections and skin irritation.

Table of Comparison

Feature Chitosan Rayon
Source Derived from crustacean shells (natural polymer) Regenerated cellulose from wood pulp (semi-synthetic fiber)
Absorbency High moisture absorption, antimicrobial properties Excellent absorbency, but lacks antimicrobial effects
Biodegradability Fully biodegradable and eco-friendly Biodegradable but slower decomposition than chitosan
Comfort Soft, breathable, and hypoallergenic Soft but may cause irritation for sensitive skin
Antimicrobial Natural antimicrobial and antifungal properties No inherent antimicrobial properties
Cost Moderate to high due to extraction process Generally low cost and widely available
Environmental Impact Low impact, supports sustainability goals Higher environmental footprint due to chemical processing

Introduction to Chitosan and Rayon in Sanitary Pads

Chitosan, a natural biopolymer derived from chitin in crustacean shells, is valued in sanitary pads for its antibacterial, biodegradable, and moisture-absorbing properties. Rayon, a semi-synthetic fiber made from regenerated cellulose, is widely used in sanitary pads for its high absorbency and soft texture, enhancing comfort. Both materials contribute to improved hygiene and user experience, with chitosan offering antimicrobial benefits and rayon providing efficient liquid retention.

Material Composition: Chitosan vs Rayon

Chitosan, a natural biopolymer derived from chitin in crustacean shells, offers biodegradability, antimicrobial properties, and skin-friendly attributes, making it an innovative material for sanitary pads. Rayon, a semi-synthetic fiber made from regenerated cellulose, provides high absorbency and softness but lacks inherent antimicrobial functionality. The material composition of chitosan enhances hygiene and environmental sustainability compared to the conventional cellulose-based rayon in sanitary products.

Absorbency Performance Comparison

Chitosan fibers exhibit superior absorbency in sanitary pads due to their natural hydrophilic properties and high moisture retention capacity, outperforming rayon which, while commonly used, tends to have lower absorbency rates and slower liquid uptake. The antimicrobial properties of chitosan further enhance its performance by reducing odor and bacterial growth, offering a hygienic advantage over rayon. Studies indicate chitosan-based pads maintain dry comfort longer, making them a more effective solution for menstrual hygiene products.

Breathability and Comfort Levels

Chitosan fibers in sanitary pads offer superior breathability due to their natural antimicrobial properties and moisture-wicking capabilities, promoting a dry and odor-free environment. Rayon, while absorbent, tends to retain more moisture, which can reduce breathability and increase the risk of discomfort during extended use. The enhanced comfort levels of chitosan pads stem from their ability to maintain skin dryness and reduce irritation, making them a preferred choice for sensitive skin.

Biodegradability and Environmental Impact

Chitosan, derived from crustacean shells, is highly biodegradable and promotes environmental sustainability by decomposing faster in natural conditions compared to rayon, which is a semi-synthetic fiber produced from cellulose nitrate through energy-intensive processes. Chitosan also exhibits antimicrobial properties, reducing odor and bacterial growth in sanitary pads, while rayon's production involves toxic chemicals that pose environmental hazards and slower degradation rates. Choosing chitosan-based sanitary pads significantly minimizes landfill accumulation and pollution, offering an eco-friendly alternative to conventional rayon pads.

Antibacterial Properties and Hygiene

Chitosan fibers exhibit superior antibacterial properties compared to rayon, effectively inhibiting the growth of harmful bacteria such as Staphylococcus aureus and Escherichia coli, which enhances the hygiene of sanitary pads. The natural biopolymer nature of chitosan promotes moisture absorption and breathability, reducing the risk of infections and odor development during menstruation. Rayon, while absorbent, lacks inherent antibacterial activity, making chitosan a more hygienic and safer option for sanitary pad materials.

Skin Sensitivity and Allergy Risks

Chitosan in sanitary pads offers superior hypoallergenic properties and antimicrobial benefits, reducing skin sensitivity and mitigating allergy risks compared to rayon, which is derived from wood pulp and may cause irritation for sensitive skin. Chitosan's natural biocompatibility promotes breathability and moisture regulation, essential for preventing discomfort and allergic reactions during prolonged use. In contrast, rayon can trap moisture, increasing the likelihood of bacterial growth and skin irritation, making chitosan a safer choice for users with sensitive or allergy-prone skin.

Cost and Availability in the Market

Chitosan sanitary pads typically have higher production costs due to the specialized extraction process from crustacean shells, which affects their market price compared to rayon pads. Rayon is widely available and mass-produced, leading to lower costs and easier accessibility in retail and wholesale markets. The cost difference makes rayon pads more common in budget-conscious consumer segments, while chitosan pads often target niche markets emphasizing natural and biodegradable materials.

Consumer Preferences and Feedback

Consumers prefer chitosan sanitary pads for their natural antibacterial properties, which help reduce irritation and prevent infections during menstruation. Feedback highlights rayon pads' superior absorbency and softness, making them a popular choice for comfort and leak protection. Market surveys indicate a growing interest in eco-friendly chitosan options, driven by increasing awareness of sustainable hygiene products.

Future Trends in Sanitary Pad Materials

Chitosan, derived from natural biopolymers, offers antimicrobial, biodegradable, and skin-friendly properties, positioning it as a leading material in future sanitary pad innovation. Rayon, traditionally used for its absorbency, is increasingly being integrated with sustainable alternatives like chitosan to enhance biodegradability and reduce environmental impact. Emerging trends emphasize combining natural fibers with advanced biotechnologies to develop eco-friendly, high-performance sanitary pads that meet growing consumer demand for sustainability and skin health.

Chitosan vs. Rayon for Sanitary Pad - What is The Difference?

Infographic: Chitosan vs Rayon for Sanitary Pad



About the author. Kakani is a respected author and expert in materials for industrial and manufacturing applications. With years of experience in both research and industry.

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