Disperse Red 343 MIX

Disperse Red 343 MIX is a high-performance azo disperse dye developed for polyester and synthetic fiber dyeing and printing. Supplied as a uniform red powder, it is recognized for its bright shade, strong color strength, and reliable fastness profile. Thanks to its balanced performance and environmental compliance, it is widely adopted as a key red dye in modern textile dyeing and finishing operations.

The dye's molecular design incorporates functional cyano groups that enhance chromatic intensity and thermal stability. It exhibits good chemical stability across a broad pH range (approximately pH 3–9) and remains insoluble in water while dispersing evenly in aqueous dye baths with the aid of standard dispersants. This stable dispersion behavior supports consistent dye uptake and reproducible coloration, even under demanding processing conditions.

In terms of fastness, Disperse Red 343 MIX delivers well-rounded and dependable performance. Dyed fabrics show good resistance to washing and rubbing, maintaining color integrity through repeated laundering and daily wear. Its sublimation fastness allows it to tolerate elevated temperatures during heat setting, hot-melt fixation, and finishing processes with minimal risk of dye migration or staining. Lightfastness performance meets the expectations for apparel and functional textiles exposed to regular outdoor or indoor light conditions.

The product demonstrates excellent affinity for polyester fibers, including micro-denier and ultra-fine polyester materials. It provides high exhaustion and smooth leveling, helping to avoid shade unevenness or spotting, which is especially important for premium microfiber fabrics. Its process versatility allows application in multiple dyeing systems, including carrier dyeing at medium temperatures, high-temperature high-pressure dyeing, and hot-melt dyeing. In addition to exhaust dyeing, it performs well in printing applications on polyester, acetate, and triacetate substrates.

From an application perspective, Disperse Red 343 MIX is suitable for a wide range of end uses. In apparel textiles, it is commonly used for sportswear, outdoor garments, knitwear, and fashion fabrics that require durable color performance. In high-end fiber products such as microfibers and specialty polyester fabrics, it delivers clean, vivid red shades with good depth. It is also applicable to decorative and industrial textiles where color stability and fastness are essential. In printing, it can be used alone or blended with compatible disperse dyes to achieve stable shades and sharp pattern definition, including use in transfer printing systems.

Overall, Disperse Red 343 MIX combines vivid color expression, process flexibility, and reliable fastness, making it a practical and efficient red dye solution for both standard and high-performance textile applications.