Solvent Yellow 157
Transparent Yellow HGN (Solvent Yellow 157) is a quinoline solvent dye with a greenish yellow shade and a melting point of 323°C, one of the highest thermal stability grades in the solvent dye range. It exhibits excellent light fastness and good heat resistance and is widely used for spin dyeing, above all nylon. With applications focused on Nylon (PA) systems, it colors carpet and textile fibers reliably and withstands harsh polymer processing without shade drift.
Key Features
Technical Specifications
| Trade Name | Transparent Yellow HGN |
| C.I. NO. | 470180 |
| CAS NO. | 27908-75-4 |
| EU NO | - |
| Chemical Group | Quinoline |
| Solubility | Excellent in organic solvents |
| Melting Point | 323°C |
Physical Data & Fastness Properties
| Light Fastness | Good to Excellent |
| Heat Resistance | 300°C |
Application Fields
This product is widely used in the following application fields, providing excellent coloring performance and durability:
- Nylon (PA)
Usage Instructions
Dose 0.05-0.4% in nylon spin dyeing and 0.05-0.5% in other transparent systems. The dye withstands 300°C processing, so high temperature polymer processing including PET and PA6 is safe. Add before extrusion and verify uniform dispersion for even filaments. Its excellent light fastness also suits demanding uses such as automotive interior textiles.
Frequently Asked Questions
What is Solvent Yellow 157 used for?
Solvent Yellow 157 is mainly used for transparent coloring of Nylon (PA), and can also be used for masterbatch production.
What are the key properties of Solvent Yellow 157?
Solvent Yellow 157 offers a heat resistance of 300°C, and has light fastness rated Good to Excellent, and has a Quinoline chemical structure.
What is the CAS number of Solvent Yellow 157?
The CAS number of Solvent Yellow 157 is 27908-75-4, and its Colour Index number is C.I. 470180.
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