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Functions Of Wet Rubbing Fastness Improver

Views: 39     Author: Site Editor     Publish Time: 2023-09-18      Origin: Site

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Wet rubbing fastness improvers are chemical agents that are added to textile processing to improve the wet rubbing fastness of dyed or printed fabrics. Wet rubbing fastness is the ability of the dye or pigment to resist rubbing off when the fabric is wet, and it is an important property of textile materials.

Wet rubbing fastness improvers are designed to enhance the bonding of the dye or pigment with the textile fibers, thereby improving the resistance of the dyed or printed fabric to rubbing.

There are several different types of wet rubbing fastness improvers, each with its own specific functions and applications.



In this article, we will discuss the most common types of wet rubbing fastness improvers and their functions.

1.Crosslinking agents

Crosslinking agents are used to form covalent bonds between the dye or pigment and the textile fibers, which improves the wet rubbing fastness of the fabric. Crosslinking agents are typically used in combination with other wet rubbing fastness improvers to enhance their effectiveness.

2.Resins

Resins are synthetic polymers that can be used to improve the wet rubbing fastness of dyed or printed fabrics. Resins work by forming a thin film on the surface of the fabric, which enhances the adhesion of the dye or pigment to the textile fibers. Resins can also improve the durability and wash fastness of the fabric.

3.Polyurethanes

Polyurethanes are a type of resin that is commonly used as a wet rubbing fastness improver. Polyurethanes can be applied to the fabric as a coating, which enhances the adhesion of the dye or pigment to the textile fibers. Polyurethanes can also improve the tensile strength and abrasion resistance of the fabric.

4.Formaldehyde-based crosslinkers

Formaldehyde-based crosslinkers are used to improve the wet rubbing fastness of dyed or printed fabrics. Formaldehyde-based crosslinkers work by reacting with the textile fibers and the dye or pigment to form a crosslinked structure, which enhances the durability of the dye or pigment on the fabric.

Wet rubbing fastness improvers

5.Silicones

Silicones are used as wet rubbing fastness improvers because of their excellent water repellent properties. Silicones can be applied to the fabric as a coating, which enhances the resistance of the fabric to water and wet rubbing. Silicones can also improve the softness and hand feel of the fabric.

6.Cationic agents

Cationic agents are used to improve the wet rubbing fastness of fabrics that are dyed or printed with basic dyes. Cationic agents work by forming a positively charged layer on the surface of the fabric, which enhances the adhesion of the dye to the textile fibers.

7.Anionic agents

Anionic agents are used to improve the wet rubbing fastness of fabrics that are dyed or printed with acid dyes. Anionic agents work by forming a negatively charged layer on the surface of the fabric, which enhances the adhesion of the dye to the textile fibers.



In conclusion, wet rubbing fastness improvers are essential additives for improving the performance of dyed or printed fabrics. They work by enhancing the adhesion of the dye or pigment to the textile fibers, which improves the wet rubbing fastness of the fabric. By selecting the appropriate wet rubbing fastness improver, textile manufacturers can produce high-quality fabrics that meet the performance requirements of their customers.


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