It is now autumn. The chilly mornings and evenings, and the styles hanging inside the clothing stores tell us that autumn has finally come. T
he color of clothes has become darker.
When it comes to clothing, color not only expresses the seasonal sensibilities, but also enhances the design and style.
The impact of color is absolute in the fashion world.
Even with the same design, the vibe and mood of the style are completely different depending on the color.
To express various colors of the fabric, fibers must under go dyeing process.
Before dyeing, natural impurities, dust, and other foreign substances must be eliminated from in the fibers.
Impurities need to be fully removed for the dye to be applied uniformly in the desired color.
During this impurity elimination process, caustic soda is often used.
The alkaline caustic soda washes and cleans impurities from fibers.
In addition to removing impurities, caustic soda gives gloss to cotton fibers and enhances dyeing quality.
◆ Caustic soda
Caustic soda is also known as sodium hydroxide, and its colorless and odorless aqueous solution has a strong alkaline property.
It absorbs moisture and carbon dioxide from the air to produce carbonates.
Caustic soda is used in various applications throughout industries, such as dyeing textiles and making soap.