We mainly produce acid dyes and dye intermediates, and we are a professional Wholesale Acid Yellow 128 dyes manufacturer of anthraquinone acid dyes in China.

  • Acid Yellow 128
  • Acid Yellow 128
  • Acid Yellow 128
  • Acid Yellow 128
  • Acid Yellow 128
  • Acid Yellow 128
Tnyalan® S Dyes Series

Acid Yellow 128
Acid yellow 2GL

- High wet and light fastness
- High dye-uptake properties, excellent compatibility
- 1:2 metal complex dyes
- It has low damage to wool and has high wool coverage.

Used for dyeing wool, silk, polyamide, vinylon/cotton, wool/viscose blended fabrics;
Mainly used for the dyeing of vinylon and nylon fabrics at present;
Used for the direct printing on leather dyeing, silk and nylon fabrics.
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Dye Name Color Card
Light (Xenon)

Dyeing Depth
ISO 105 C10

ISO 105 E04
ISO 105 X12
Hot Pressing 
Chlorination water 

Dry Rub
Wet Rub
Acid Yellow 128 5
70 1 4

4-5 4-5 5

Dye Name:
CAS Registry Number:
The dye is a uniform powder, brown in color, soluble in water and has a greenish-yellow hue.
- It is yellow when it encounters concentrated sulfuric acid and becomes a light yellow solution after dilution;
- It is destroyed in nitric acid, leaving a small yellow color;
- It is light yellow when diluted under the same concentrated hydrochloric acid, such as under light;
- It is yellow in a thick sodium hydroxide solution and is light yellow when diluted.
- The color of aqueous solution is light yellow. Its structure is the same as that of C.I. Acid Yellow 151.
Molecular Structure: Monoazo, 1:2 cobalt complex dyes
Molecular Formula: C16H16N4O5S
Molecular Weight: 376.39
Samples: Free samples are available, PSS can be sent to you before shipment. The quality of this item is very stable and once you confirm the quality we can deliver to you directly without PSS.
Tianya Industry is a fine chemical enterprise that engages in R&D, production, and operation of acid dyes and intermediates, which has obtained an ISO9001 certificate. Contact us freely for more details.

Latest News

Industry knowledge

How does Acid Yellow 128 perform after being treated with chlorine-containing water?

Acid Yellow 128 is a commonly used synthetic dye commonly used for dyeing materials such as textiles, leather and paper. It belongs to the azo dye group and has a bright yellow color. In industrial applications, wastewater treatment is often required to reduce environmental pollution. Chlorinated water treatment is one of the treatment methods. Below I will give some explanations about the performance of Acid Yellow 128 after being treated with chlorinated water.
Chlorine-containing water treatment can degrade the Acid Yellow 128 dye molecules to a certain extent and reduce its concentration in wastewater. Chlorine in water will form hypochlorous acid and hypochlorite. These active chlorine compounds can react with dye molecules, causing the color of the dye to fade. Therefore, after chlorine-containing water treatment, the concentration of Acid Yellow 128 in the wastewater will be reduced, thereby reducing environmental pollution.
Chlorine-containing water treatment may also change the chemical structure of Acid Yellow 128 dye, causing it to produce degradation products. These degradation products may be less toxic or more readily biodegradable, reducing environmental harm. However, it should be noted that the products of dye degradation may also have certain toxicity or impact on the environment, so a comprehensive evaluation of the products is required during the treatment process.
Chlorinated water treatment may affect the color stability and gloss of Acid Yellow 128 dye. Changes in the structure of the dye molecules may cause the color of the dye to fade or change, causing it to lose its original brightness. Gases and solid products that may be generated during the treatment process may also adhere to the surface of dyes and pigments, affecting their gloss and surface quality.
There may be some changes in the properties of Acid Yellow 128 dye after treatment with chlorinated water. Dye concentration is reduced, degradation products are produced, and color stability and gloss may be affected. The specific impact depends on the processing conditions and the chemical structure of the dye, so detailed studies and evaluations are required in industrial applications to ensure that the impact of the treatment process on the environment and product performance is minimized.

Acid Yellow 128 has been friction tested (ISO 105 X12). How is the friction resistance of this product?

In the textile industry, the assessment of the rub resistance of dyes is crucial. Among them, Acid Yellow 128 is a commonly used dye, and its friction resistance is directly related to the quality and durability of the product.
Acid Yellow 128 is an acid dye commonly used for dyeing natural fibers (such as cotton, silk) and synthetic fibers (such as polyester). It has a bright yellow color and is widely used for dyeing textiles, including clothing, household items, etc. However, the rub resistance of a dye is one of the important indicators to evaluate its quality.
Rub testing is one of the common methods to evaluate dye durability, and ISO 105 X12 is one of the international standards for textile dye fastness testing. This test evaluates the durability of dyes by simulating the friction that textiles may encounter during use. During the test, the sample is rubbed a certain number of times, and then the degree of fading of the dye is evaluated using a grayscale standard.
Acid Yellow 128 has performed well in friction resistance after passing the ISO 105 X12 friction test. During the test, the sample was subjected to repeated reciprocal rubbing, but the color of the dye remained relatively stable without significant fading. This shows that Acid Yellow 128 has high durability and is suitable for textiles that require frequent washing and rubbing.
The rub resistance of dyes is affected by many factors, including the type of dye, fiber type, dyeing process, etc. Acid Yellow 128, as an acid dye, usually has good durability and can form strong dyeing on fibers. In addition, choosing the appropriate dyeing process and post-processing methods can also improve the durability of the dye.
Although Acid Yellow 128 performed well in the friction test, care and usage still need to be paid attention to in actual applications to extend the life of the product. Regular washing and proper care can help maintain the color and quality of your dye.
Acid Yellow 128 has shown good friction resistance after friction testing (ISO 105