Textile coating finishing agent, also known as coating glue, is a polymer compound that is evenly coated on the surface of fabrics. It forms one or more films on the surface of the fabric through adhesion, which not only improves the appearance and style of the fabric, but also increases the function of the fabric, making the fabric waterproof, water pressure resistant, breathable, flame retardant, antifouling, and light-shielding. Reflection and other special functions. As early as more than 2,000 years ago, the ancient Chinese people had applied coating glue to the surface of fabrics. At that time, they were mostly natural compounds such as raw lacquer and tung oil, and were mainly used in the production of waterproof cloths. In modern times, a variety of synthetic polymer coating glues with superior performance have appeared. The original product had the disadvantage of being only waterproof but not moisture-permeable. The coated fabric felt stuffy and had poor comfort when used. In order to improve the breathability and moisture permeability of coating adhesives, since the 1970s, scientific researchers have developed a series of coating adhesives for waterproof and breathable fabrics by modifying the chemical structure of coating adhesives and changing coating processing methods. In recent years, functional coating glue and composite coating glue have also developed greatly.
There are many ways to classify coating glues. The main categories according to chemical structure are:
1. Polyacrylate (PA);
2. Polyurethane (PU);
3. Polyvinyl chloride (PVC);
4. Silicones;
5. Synthetic rubber (such as neoprene).
