Textile mercerizing agent formulation in which chemicals are used in a process called mercerization, which is a treatment applied to cotton and other cellulosic fibers to improve their properties. Mercerization enhances the fiber’s strength, luster, and affinity for dyes, resulting in improved fabric appearance and performance.
The primary chemical of textile mercerizing agent formulation used as a mercerizing agent is sodium hydroxide (NaOH), also known as caustic soda. During mercerization, the cotton fibers are immersed in a bath of sodium hydroxide solution at a specific concentration and temperature. The caustic soda causes the fiber to swell, leading to changes in its physical and chemical structure.
- Wetting: The cotton fabric is wetted with water to ensure uniform penetration of the sodium hydroxide solution.
- Mercerizing: The fabric is immersed in a bath containing sodium hydroxide. The concentration and temperature of the solution are carefully controlled to achieve the desired effects.
- Neutralization: After the mercerizing treatment, the fabric is rinsed with water and then treated with an acidic solution, usually sulfuric acid or acetic acid, to neutralize the alkali.
- Washing and drying: The fabric is thoroughly washed to remove any residual chemicals and then dried.
Textile mercerizing Process
The mercerizing process causes the cotton fibers to undergo structural changes, including increased fiber roundness and improved orientation of cellulose chains. These changes result in several benefits, including increased strength, improved dye absorption, enhanced luster, and reduced fabric shrinkage.
Apart from sodium hydroxide, other chemicals also take part as additives in the mercerizing process to modify the effects or enhance the performance of the treatment. These additives can include wetting agents, sequestering agents, and stabilizers to optimize the mercerization process.
Mercerized cotton fabrics are widely used in various textile applications, including high-quality garments, bed linens, and industrial textiles. They are known for their smoothness, luster, and ability to retain color vibrancy after dyeing.