Acid Black 1 Dye

Acid Black 1 is a synthetic dye used primarily for coloring materials such as wool, silk, leather, and paper. It is a water-soluble powder, typically supplied in dark granules or fine powder form, facilitating ease of handling and precise dosing in industrial processes. This dye is usually applied under acidic conditions, with an optimal pH range of approximately 4 to 5 to achieve stable and consistent coloration results. The chemical formula is C20H12N2Na2O7S2, and due to its chemical nature, it should be handled carefully to avoid contact with incompatible substances like strong oxidizing agents. Finstar supplies Acid Black 1 in packaging options including drums and bulk bags, with typical shelf life of 1 to 2 years when stored in a cool, dry, well-ventilated area. Proper storage ensures the dye remains stable and effective for industrial dyeing operations.

In textile and leather manufacturing, achieving uniform and durable black coloration is essential for product quality and customer satisfaction. Acid Black 1 provides consistent dye uptake on protein fibers such as wool and silk, enhancing the visual appeal and longevity of the finished goods. This dye also improves process efficiency by offering reliable solubility in acidic dye baths, reducing downtime caused by uneven dye distribution. Its stability under storage and controlled pH application minimizes waste and reprocessing costs in production lines.