Liquid Black 4GN (Sulphur Black 1) is a high-performance, eco-friendly liquid dyestuff specifically designed for both the textile and paper industries. This pre-reduced formulation offers excellent solubility and high affinity for cellulose fibers, making it perfect for denim dyeing and high-quality paper tinting. Unlike powder dyes, this liquid version provides a dust-free environment, ensures precise dosing, and achieves a deep, uniform black shade with superior light and water fastness. It is the preferred choice for factories seeking sustainable production and consistent coloring results.
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