The importance of environmental protection of fabric coating machines

- Feb 13, 2021-

The recycling of coated fabrics is being re-examined, which will eventually become an important factor in the suspension of materials. Because many coated fabrics are two or more polymers bonded together, it is difficult to recycle them at once. Considering this problem, the water-soluble coating machine-coated fabric with the same or similar polymer composition is more recyclable. Therefore, Germany has researched and developed a water-soluble polyester polymer as a coating for polyester fabrics. material.

In addition to the modification of the base fabric, the polymer coating is also used as a body or "container" for special chemical reagents or pigments, for example, mixing appropriate chemical reagents into the polymer coating and then coating it on the fabric. The result is high-visibility or "daylight fluorescent" items. This method is usually more flexible than the method of dyeing fabrics with high-visibility dyes, because higher concentrations of pigments or fuels are more likely to enter the coating agent, and it is difficult to directly dye the fabric. Such as antibacterial agents or antistatic agents.

Special chemical reagents are treated on the fabric by finishing methods, which are easier to be washed off, wiped off or worn off. But if these

Sometimes mixed into the polymer coating agent, they will be difficult to remove. Other special reagents that are difficult to produce unique effects include photosensitizers that can emit light in the dark, dyes that change color with temperature changes, ultraviolet absorbers {anti-skin cancer, "phase change materials" {exothermic when cold, cool when hot}, Deodorant, fragrance and flame retardant. Microcapsules composed of millions of small capsules with a diameter of about 3~5um can improve durability and enhance the effectiveness of many of the aforementioned chemical reagents. Capsules can be volatilized, washed away, or removed by other means.