Acid Yellow S-2G

Product Application

Acid Yellow S-2G is mainly used for wool, silk and polyamide fiber dyeing and printing.

Product Property

Acid Yellow S-2G has excellent color fastness properties and excellent dye uniformity.

Fastness of dyes on cotton fabrics:

Product Package,Transport and Storage

Production workshop

FAQ

What is Acid Yellow S-2G?

Acid Yellow S-2G is a synthetic dye that belongs to the class of acid dyes. It is also known as Acid Yellow 220, and its chemical name is 2-(phenylazo)-4-methyl-5-hydroxybenzenesulfonic acid. The dye appears as a yellow powder that is soluble in water and insoluble in most organic solvents.

Acid Yellow 220 is commonly used to dye wool, silk, and nylon fibers. It is known for its excellent light fastness and acid resistance, which makes it a popular choice for dyeing textiles that are exposed to sunlight and harsh chemicals.

How does Acid Yellow S-2G work?

Acid Yellow S-2G (also known as Acid Yellow 220) is an acid dye that is commonly used to color wool, silk, and nylon fibers. The dye works by forming ionic bonds with the fibers, which allows the dye molecules to become embedded in the fabric.

Acid Yellow S-2G has a sulfonic acid group, which gives it an acidic nature. This allows the dye to bond with the basic amino groups on the fibers’ surface. The dye molecules also contain a chromophore group, which is responsible for the color of the dye. In the case of Acid Yellow S-2G, the chromophore group consists of a benzene ring with two azo groups attached to it.

When Acid Yellow S-2G is added to a dye bath, it dissociates into its individual dye molecules. The dye molecules then penetrate the fibers and form ionic bonds with the amino groups on the fiber’s surface. The dye molecules are held in place by these ionic bonds, making the color permanent.

The intensity of the color can be adjusted by changing the pH of the dye bath. At lower pH levels, the dye will have a more yellowish color, while at higher pH levels, the dye will have a more greenish hue.

What is the advantage of Acid Yellow S-2G ?

Acid Yellow S-2G has excellent color fastness properties, which means that the color will remain vibrant and resist fading, even after repeated washing or exposure to sunlight.

Acid Yellow S-2G can be used to dye a variety of different fibers, including wool, silk, and nylon. This makes it a versatile dye for use in the textile industry.

Acid Yellow S-2G is a water-soluble dye, which means that it can be easily dissolved in water to create a dye bath. This makes it simple and convenient to use.

Acid Yellow S-2G is relatively inexpensive compared to some other types of dyes, which makes it a cost-effective choice for dyeing textiles.

Acid Yellow S-2G is considered to be a relatively eco-friendly dye, as it does not contain heavy metals or other harmful chemicals that can be harmful to the environment.

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