What is Liquid Ammonia Finish .?
Liquid ammonia finish, also known as ammoniation or ammonia treatment, is a process used in the textile industry to improve the physical properties of natural fibers, such as cotton, wool, and silk.
In this process, the fabric is immersed in an aqueous solution of ammonia (NH3) and then dried. The ammonia gas reacts with the natural fibers, causing the fibers to swell and increase in diameter. This process leads to a number of changes in the fabric, including:
Increased strength and abrasion resistance: The ammonia treatment makes the fibers stronger, which improves the fabric's durability and resistance to wear and tear.
Increased luster: The increased diameter of the fibers leads to a smoother surface, which reflects more light and gives the fabric a shiny appearance.
Improved dye uptake: The swelling of the fibers improves their ability to absorb dyes, leading to deeper, richer colors.
Improved wrinkle resistance: The increased strength and smoother surface of the fibers make the fabric less prone to wrinkles.
Liquid ammonia finish is widely used in the production of high-quality cotton fabrics, such as dress shirts and bed linens. However, the process requires careful handling, as ammonia gas is toxic and can pose health risks to workers if not handled properly.