Viscose non woven fabric is a popular material known for its softness, absorbency, and eco - friendliness. However, one of the common challenges with this fabric is its breathability. As a supplier of viscose non woven fabric, I understand the importance of addressing this issue to meet the diverse needs of our customers. In this blog, I will share some effective ways to improve the breathability of viscose non woven fabric.
Understanding the Factors Affecting Breathability
Before we dive into the solutions, it's essential to understand what factors can influence the breathability of viscose non woven fabric. The structure of the fabric, the density of fibers, and the presence of additives all play a role. A tightly packed fiber structure can restrict air circulation, reducing breathability. Additives used for various purposes, such as enhancing strength or providing water - resistance, may also block the pores in the fabric, hindering the passage of air and moisture.
Optimizing the Fiber Structure
One of the primary ways to improve breathability is by optimizing the fiber structure of the viscose non woven fabric. This can be achieved through several methods.
Fiber Selection
The type of viscose fibers used in the fabric can significantly impact breathability. We can choose fibers with a larger diameter or a more porous structure. Larger - diameter fibers create more space between them, allowing for better air circulation. Porous fibers, on the other hand, can absorb and release moisture more efficiently, promoting breathability. For example, some advanced viscose fibers are engineered to have micro - pores on their surface, which can enhance the fabric's ability to breathe.
Fiber Arrangement
The way the fibers are arranged during the manufacturing process also matters. Random fiber orientation can create a more open and porous structure compared to a highly ordered arrangement. By using techniques such as air - laying or wet - laying, we can ensure that the fibers are randomly distributed, increasing the number of air channels in the fabric. This allows air to flow more freely through the fabric, improving breathability.
Reducing Fabric Density
Another effective strategy is to reduce the density of the viscose non woven fabric. A lower - density fabric has more space between the fibers, facilitating better air and moisture exchange.
Adjusting the Production Parameters
During the production of the non woven fabric, we can adjust parameters such as the amount of fiber input and the pressure applied during the bonding process. By reducing the amount of fiber used per unit area, we can create a lighter and more breathable fabric. Additionally, reducing the bonding pressure can prevent the fibers from being compressed too tightly, maintaining an open structure.
Using Thinner Fabrics
In some cases, using thinner viscose non woven fabrics can also improve breathability. Thinner fabrics have a shorter distance for air and moisture to travel through, reducing the resistance to their movement. However, it's important to balance the reduction in thickness with the required strength and durability of the fabric, depending on its intended application.
Introducing Porous Structures
Creating porous structures in the viscose non woven fabric can significantly enhance its breathability. There are several ways to achieve this.
Perforation
Perforating the fabric is a straightforward method to introduce pores. By using mechanical or laser - based perforation techniques, we can create small holes in the fabric. These holes act as channels for air and moisture to pass through, improving breathability. You can learn more about Perforated Non Woven Fabric on our website. The size, shape, and density of the perforations can be adjusted according to the specific requirements of the fabric.
Foaming
Foaming is another technique that can create a porous structure in the viscose non woven fabric. By adding a foaming agent during the manufacturing process, we can generate bubbles in the fabric matrix. When the bubbles burst or are removed during subsequent processing steps, they leave behind pores. This foamed structure allows for better air and moisture transfer, enhancing breathability.
Modifying the Surface Properties
The surface properties of the viscose non woven fabric can also affect its breathability. By modifying the surface, we can improve the fabric's ability to interact with air and moisture.
Hydrophilic Treatment
Applying a hydrophilic treatment to the fabric can enhance its moisture - wicking properties. A hydrophilic surface attracts and spreads moisture, allowing it to evaporate more quickly. This not only keeps the fabric dry but also improves breathability by reducing the humidity within the fabric. There are various hydrophilic agents available in the market that can be applied through coating or impregnation processes.
Surface Roughness
Increasing the surface roughness of the fabric can also improve breathability. A rough surface creates more turbulence in the air flow around the fabric, promoting better air exchange. This can be achieved through mechanical processes such as embossing or by using additives that create a textured surface on the fabric.
Selecting the Right Bonding Method
The bonding method used to hold the fibers together in the non woven fabric can have an impact on breathability. Different bonding methods can result in different fabric structures and levels of porosity.
Thermal Bonding
Thermal bonding is a common method for manufacturing viscose non woven fabrics. By carefully controlling the temperature and pressure during thermal bonding, we can create a fabric with a balanced combination of strength and breathability. Lower temperatures and pressures can help maintain a more open fiber structure, allowing for better air circulation.
Chemical Bonding
Chemical bonding involves the use of adhesives to bond the fibers. However, some adhesives can block the pores in the fabric, reducing breathability. We need to select adhesives that are breathable or use bonding techniques that minimize the coverage of the fiber surface. For example, using a low - solids adhesive or applying the adhesive in a pattern can help preserve the fabric's porosity.
Applications of Breathable Viscose Non Woven Fabric
Improving the breathability of viscose non woven fabric opens up a wide range of applications.
Hygiene Products
In the hygiene product industry, breathable viscose non woven fabric is highly desirable. For products such as baby diapers, adult incontinence pads, and feminine hygiene products, breathability helps to keep the skin dry and comfortable, reducing the risk of skin irritation. Our Absorbent Non Woven Fabric with enhanced breathability is an excellent choice for these applications.
Medical and Healthcare
In the medical field, breathable viscose non woven fabric can be used for wound dressings, surgical gowns, and masks. Breathability is crucial in these applications to prevent the build - up of moisture and heat, which can lead to infections and discomfort for the patients and medical staff.
Textile and Apparel
In the textile and apparel industry, breathable viscose non woven fabric can be used for linings, interlinings, and even outerwear. It provides a comfortable and breathable alternative to traditional fabrics, especially in warm and humid climates. Our Spunlace Viscose Non Woven Fabric offers excellent breathability and softness, making it suitable for a variety of clothing applications.
Conclusion
Improving the breathability of viscose non woven fabric is a multi - faceted process that involves optimizing the fiber structure, reducing fabric density, introducing porous structures, modifying surface properties, and selecting the right bonding method. By implementing these strategies, we can produce viscose non woven fabrics that offer superior breathability, meeting the diverse needs of our customers in various industries.
If you are interested in our breathable viscose non woven fabric products or have any questions about improving breathability, please feel free to contact us for procurement and further discussion. We are committed to providing high - quality solutions to meet your specific requirements.
References
- "Nonwoven Fabric Technology: Principles, Processes, and Performance" by Xungai Wang and W. Paul Lee
- "Handbook of Nonwovens" edited by S. R. Anand, K. G. Goswami, and M. J. Kilby
- Research papers on viscose non woven fabric properties and breathability improvement published in textile - related journals.