Fixing agents are important auxiliaries in the textile industry, mainly used to enhance the color fastness of dyes on fabrics and ensure that colors do not fade easily under conditions such as washing and sun exposure.

Fixation agents enhance the color fastness of dyed fabrics by forming insoluble compounds through chemical reactions with dyes and fibers.

They can improve the wash resistance, abrasion resistance and sun resistance of fabrics, ensuring that the dyed fabrics maintain good appearance and color stability during use.

Common types

1. Cationic color fixatives: such as quaternary ammonium salt type color fixatives, usually combine with anionic dyes to form dye lakes, enhancing color fastness.
2. Resin-based color-fixing agents: Such as dicyandiamide formaldehyde color-fixing agent, which forms a network structure by reacting with dyes and fibers to enhance the color-fixing effect. However, color-fixing agents containing formaldehyde have been banned in many countries.
3. Formaldehyde-free color fixative: With the enhancement of environmental awareness, an increasing number of color fixatives on the market are free of formaldehyde, meeting international environmental protection standards.

The application of color-fixing agents

Fixatives are widely used in the dyeing process of various fabrics such as cotton, linen, silk and synthetic fibers.

They not only enhance the color fastness of the fabric, but also improve the hand feel and gloss of the fabric, ensuring that the quality of the final product meets market demands.

Fixatives play a crucial role in the textile printing and dyeing process. Choosing the right fixative can significantly enhance the quality and durability of dyed fabrics. With the development of technology, the use of environmentally friendly color-fixing agents will become a future trend to meet the market demand for green products.