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Airlaid Paper: The Unsung Hero in High-Cleanliness Industries
2026-01-26
In the precision-driven worlds of electronics manufacturing, medical care, and aerospace engineering, there exists a seemingly ordinary material that plays an indispensable role—airlaid paper, also known as airlaid pulp nonwovens. Often mistaken for conventional paper, this dry-laid nonwoven fabric boasts unique physical properties that make it a cornerstone in high-cleanliness and high-performance applications. Let's delve into the fascinating world of airlaid paper and uncover its secrets.What Exactly Is Airlaid Paper?
Contrary to its name, airlaid paper is not traditional paper but a type of nonwoven fabric manufactured through a dry-laying process. Its English name "airlaid paper" reveals two core characteristics: first, its primary raw material is wood pulp fiber; second, it adopts air-laid technology for web formation . Unlike woven fabrics that rely on interlaced yarns, airlaid paper is made by randomly or directionally arranging textile short fibers, forming a fiber web, and then reinforcing it through mechanical, thermal bonding, or chemical methods . This unique production method endows it with exceptional elasticity, softness, and drapability, along with ultra-high water absorption and excellent water retention capabilities .
Production Processes: The Art of Crafting Cleanliness
The production of airlaid paper mainly involves two key stages: web formation and reinforcement. The reinforcement process primarily falls into two categories, each resulting in products with distinct characteristics and applications .
Chemical bonding uses 100% wood pulp fiber as raw material. After the fibers are opened into a single-fiber state and formed into a web by air flow, water-soluble adhesives are sprayed onto the web surface, followed by baking to reinforce the fabric. Products made via this method are mainly used as industrial wipes, feminine hygiene products, baby wipes, tablecloths, wet tissues, and cooking cloths .
Thermal bonding, on the other hand, mixes wood pulp fibers with hot-melt fibers (typically at a ratio of no less than 15%). After air-laid web formation, hot air or hot rolling is used to melt the low-melting-point fibers in the web, thereby reinforcing it. Since thermal bonding does not require chemical adhesives, the resulting products have better bulkiness and water absorption. They are mainly used as absorbent cores for highly absorbent hygiene products and thin feminine Sanitary Napkins. Some production lines are even equipped with devices to add Super Absorbent Polymer (SAP) powder, which can turn water into a solid state after absorption, greatly enhancing water absorption capacity .
Key Types and Their Distinctions
There are three main types of airlaid paper, differentiated by their bonding methods . VICELL, or glued airlaid paper, is formed by air-laying wood pulp fibers and then bonding them with latex. ZORBCOR, thermal-bonded airlaid paper, is made by mixing wood pulp fibers with hot-melt fibers, with fiber bonding mainly relying on the melting of hot-melt fibers. VIZORB, composite airlaid paper, falls between the two, utilizing both hot-melt fiber bonding and a small amount of latex bonding.
In general, thermal-bonded airlaid paper, which usually undergoes surface foaming treatment, outperforms glued airlaid paper in terms of bulkiness, dry and wet tensile strength, softness, and liquid absorption properties .
Widespread Applications: From Daily Life to High-Tech Fields
Airlaid paper's versatile properties make it a staple in numerous industries. Its largest market remains various absorbent products, such as feminine hygiene products, Baby Diapers, and adult incontinence products . Beyond daily necessities, it plays a crucial role in high-tech and precision industries.
In the electronics and semiconductor industry, it is widely used in semiconductor production lines, microprocessor manufacturing, LCD display production, circuit board assembly, and cleanrooms (ranging from Class 10 to Class 10,000). Its excellent dust removal effect, antistatic function, and soft texture prevent scratches on delicate surfaces . In the medical and biotechnology field, it is utilized in GMP cleanrooms for cleaning filling lines and freeze dryers, as well as in laboratories for wiping cell culture dishes and bioreactors, effectively avoiding cross-contamination .
Other applications include food and beverage industry production line cleaning, automotive power battery assembly, aerospace engine maintenance, and 3D printing post-processing. In these fields, it meets strict technical requirements such as chemical resistance, high temperature resistance, and oil resistance .
Industry Trends: Toward Sustainability and Intelligence
Driven by manufacturing upgrading and environmental policies, the global airlaid paper industry is experiencing steady growth. It is predicted that the Chinese airlaid paper market will maintain a compound annual growth rate of approximately 8-10% from 2025 to 2030, with the market size expected to increase from around 18 billion yuan in 2024 to nearly 30 billion yuan by 2030 .
The industry is evolving toward high performance, degradability, and intelligence. R&D investment in bio-based airlaid paper materials is increasing annually, and it is expected that sustainable products will account for more than 20% of the market share by 2028 . Meanwhile, the application of automated production lines and the Internet of Things (IoT) technology is improving production efficiency and product consistency. Domestic leading enterprises are continuously introducing advanced foreign production equipment to narrow the gap with international giants in energy consumption and waste recovery rates .
As a "green and environmentally friendly" product, airlaid paper not only represents the highest level of development in the global tissue paper industry but also provides solid support for the upgrading of high-end manufacturing. This unsung hero will continue to shine in more fields with technological innovation .