What is the color-fixing principle of acidic color-fixing agent‌?

‌Ionic bonding‌: 

The acidic fixative forms an ionic bond through its cationic group and the anionic group in the dye, blocking the water-soluble group of the dye to form an insoluble lake, which is deposited on the fiber, thereby improving the quality of the dyed fabric. Color fastness‌.

‌Covalent cross-linking‌: 

The reactive groups (such as epoxy groups) on some acidic fixatives react with the reactive groups on the fibers and dyes to form covalent bonds, firmly binding the dye molecules to the fibers. to enhance the interaction between dyes and fibers and improve the color fastness of dyed fabrics‌12.

‌Film-forming effect‌: 

The acidic fixative forms a polymer film on the fiber surface, wrapping the dye on the fiber surface, preventing the dye from falling off through physical action, thereby improving the color fastness of the dyed fabric

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Application scenarios and effects of acid fixatives

Acid fixatives Fixing Agent Sylic D2810 are suitable for a variety of fibers, such as cotton, linen, silk, wool, etc., and can significantly improve the color fastness of dyed fabrics to washing, perspiration, and friction. In addition, acid fixing agents can also improve the fastness to water immersion, sea water and perspiration, making the dye more firmly attached to the fiber‌.

Precautions when using acidic fixatives

‌Usage amount control‌: Avoid excessive use of acid fixatives to avoid affecting the feel and color of textiles.

‌Used together‌: Acid fixing agents need to be used together with acid dyes, otherwise the fixing effect will be greatly reduced.

‌Skin Protection‌: For people with sensitive skin, protective measures must be taken when using acid fixing agents to prevent allergic reactions

If you want to know more about dyeing solutions, please contact: info@sylicglobal.com or visit our website www.sylicglobal.com