High Color Strength Vat Brown 1 CAS 2475-33-4 for Silk, Cotton, and Viscose

Vat Brown 1 (CAS 2475-33-4) is a premium vat dye renowned for its high color strength and exceptional hiding power, specifically developed for dyeing silk, cotton yarn, and viscose fibers. It provides a deep, solid brown shade with outstanding all-around fastness, including superior resistance to light, washing, and industrial processing. This dye ensures excellent leveling and deep penetration into natural and regenerated cellulose fibers, making it the premier choice for high-quality textiles such as luxury silk garments, durable cotton yarns, and uniform viscose fabrics that require a rich, consistent, and long-lasting color finish.