In modern feminine hygiene product design, comfort is no longer determined solely by absorbency. Increasingly, airflow and breathability have become key factors influencing user experience. Airlaid paper has emerged as an important raw material for sanitary napkins and women’s pads because of its unique structure that allows air to flow into and through the absorbent core.
Unlike traditional wet-laid paper, airlaid paper is produced using air as the forming medium, resulting in a highly porous and three-dimensional fiber structure. This structure enables both rapid liquid absorption and effective air circulation inside the pad.
1. What Is Airlaid Paper?
Airlaid paper is a nonwoven absorbent material made by dispersing cellulose fibers in air and bonding them through latex, thermal bonding, or multi-bond systems. This manufacturing process creates a soft, bulky material with a high void volume.
Because fibers are not compressed by water during formation, airlaid paper retains open spaces between fibers, which directly contributes to improved airflow and breathability when used in sanitary napkin absorbent cores.
2. How Airflow Works Inside Women’s Pads
In a sanitary napkin, airflow refers to the ability of air to circulate through the product layers while preventing liquid leakage. When airlaid paper is used as part of the absorbent core or acquisition layer, it allows air to pass through microscopic channels within the fiber network.
This airflow helps reduce heat and moisture buildup during use. By allowing warm, humid air to escape, airlaid paper contributes to a drier microclimate between the pad and the skin, significantly improving comfort during long wearing periods.
3. Benefits of Airlaid Paper in Sanitary Napkins
One of the primary benefits of airlaid paper is its balance between absorbency and breathability. The material absorbs liquid quickly while still maintaining open pores for air movement.
Additionally, airlaid paper offers excellent softness and flexibility, allowing sanitary napkins to conform naturally to body movement. This reduces stiffness and pressure points, which are common causes of discomfort in dense absorbent cores.
4. Role in Absorbent Core Structure
Airlaid paper is commonly used as an absorbent core layer or in combination with SAP to form high-performance composite cores. The fluff-like structure helps distribute liquid evenly before SAP locks it in place.
At the same time, the porous structure ensures that airflow is not completely blocked by absorbed liquid, unlike compacted pulp layers that tend to seal once wet. This makes airlaid paper especially suitable for breathable and premium sanitary napkin designs.
5. Comparison with Traditional Fluff Pulp Paper
Compared with conventional fluff pulp paper, airlaid paper provides superior bulk and porosity at the same basis weight. Traditional pulp-based cores often require higher compression, which reduces airflow once the product is in use.
Airlaid paper maintains its structure even after liquid absorption, allowing continuous air circulation. This results in better moisture control, reduced skin irritation, and an overall improvement in hygiene performance.
6. Application in Different Feminine Hygiene Products
Airlaid paper is widely used not only in sanitary napkins but also in panty liners, maternity pads, and light incontinence products. Manufacturers can adjust thickness, bonding method, and SAP content to meet different absorbency and airflow requirements.
For ultra-thin pads, airlaid paper helps achieve high absorbency without sacrificing breathability. For overnight or heavy-flow products, it supports rapid intake while maintaining comfort.
Airlaid paper plays a critical role in improving airflow within sanitary napkins and women’s pads. Its unique air-formed structure enables both efficient liquid absorption and continuous air circulation, addressing two of the most important user concerns: dryness and comfort.
As the feminine hygiene industry continues to focus on breathable, skin-friendly designs, airlaid paper will remain a key raw material choice for manufacturers seeking to differentiate their products through performance and comfort.