Introduction To The Production Process Of Intermediate Composite Glued Non-woven Fabric

Intermediate composite glued non-woven fabrics are an important category of non-woven textiles. These fabrics are made by bonding two or more layers of non-woven fabrics using a bonding agent or adhesive. The production process of intermediate composite glued non-woven fabrics typically involves four main steps: fiber preparation, web forming, bonding, and finishing. Fiber Preparation: The first step in the production of intermediate composite glued non-woven fabrics is fiber preparation. In this step, fibers are prepared for use in the non-woven fabric. The fibers often used include polyester, polypropylene, and viscose. The fibers are typically cleaned, blended, and cut to the desired length. Web Forming: After fiber preparation, the fibers are formed into a web. This is done using one of several methods, including airlaid, wetlay, and drylay processes. In airlaid process, fibers are blown onto a moving belt that forms the web. In wetlay process, a slurry of fibers and water is formed into a web. In drylay process, fibers are carded and formed into a web using a needle loom. Bonding: The bonded non-woven fabrics are created by applying a bonding agent to the non-woven web. There are several methods used for bonding, including thermal bonding, chemical bonding, and ultrasonic bonding. Thermal bonding is done by heating the web to a temperature where the fibers partially melt, and when cooled, the fibers bond. In chemical bonding, the bonding agent is added to the fibers before web formation, then cured. Ultrasonic bonding process uses high-frequency vibrations to weld fibers together without the use of adhesives. Finishing: After bonding, the non-woven fabric is often finished to improve its characteristics or add specific properties. Finishes can include the addition of a hydrophobic or hydrophilic coating, performing the fabric to enhance breathability, or adding embossed designs to improve surface texture. In conclusion, intermediate composite glued non-woven fabrics production requires fiber preparation, web forming, bonding, and finishing. With these steps, manufacturers can achieve a cost-effective and highly versatile material that can be applied in various applications in automotive, floor covering, and filtration industries.