Sizing non-woven fabrics: New exploration of materials science under innovative processes

In the world of non-woven fabrics, a material processed by a special process, Sized Non-woven Fabric, is becoming a shining star in the field of materials science with its unique charm and wide application potential. It not only comprehensively upgrades the performance of traditional non-woven fabrics, but also opens up a broader road for the application of non-woven fabrics through innovative technical means.

Sizing, a process that sounds simple but full of wisdom, is a technology that evenly coats a specific sizing agent on the surface of non-woven fabric fibers or penetrates into the gaps between fibers. This treatment is like putting a magical armor on non-woven fabrics, which not only enhances the bonding force between fibers, but also gives non-woven fabrics more functionality. The selection of sizing agents is like preparing a complex prescription, which must consider the characteristics of the fiber itself and meet the performance requirements of the final product. Whether it is natural polymers such as starch and protein, or synthetic polymers such as polyvinyl alcohol (PVA) and polyester, the selection of each sizing agent carries the expectation of improving material performance.

During the sizing process, the interaction between the sizing agent and the non-woven fabric fibers is like a delicate chemical reaction. Physical adsorption, chemical bonding, penetration filling and other methods work together on the fiber surface, so that the strength, abrasion resistance, tear strength and dimensional stability of the non-woven fabric are significantly improved while maintaining the original air permeability and softness. This improvement not only makes the non-woven fabric tougher when subjected to mechanical stress, but also provides the possibility for its application in more fields.

The performance upgrade of sizing non-woven fabrics is reflected in multiple dimensions. Its mechanical properties have been significantly enhanced, making the non-woven fabric more stable during sewing, heat sealing and other processing processes, reducing problems such as fuzzing and thread breakage, and improving production efficiency. According to the characteristics of the sizing agent, sizing non-woven fabrics can also have multiple functions such as waterproof, breathable, flame retardant, and antibacterial to meet the special requirements of material performance in different fields. The use of biodegradable sizing agents, such as starch-based sizing agents, not only improves the environmental performance of non-woven fabrics, but also promotes the development of the circular economy, reflecting the contribution of sizing non-woven fabrics to sustainable development.

Sizing non-woven fabrics are gradually penetrating into various industries with their unique properties and broad application prospects. In the field of medical and health care, sizing non-woven fabrics are widely used in medical supplies such as surgical gowns, masks, and protective clothing due to their good air permeability and antibacterial properties, providing strong protection for the safety of medical staff and the health of patients. In the field of building materials, waterproof and flame-retardant sizing non-woven fabrics are used as roof waterproofing layers and wall sound insulation materials to improve the durability and living comfort of buildings. In the packaging industry, sizing non-woven fabrics have become the first choice for environmentally friendly and beautiful packaging materials due to their high strength and printability. In the fields of agricultural horticulture, automotive interiors, etc., sizing non-woven fabrics also play an irreplaceable role.