Acid Red 66

Updated: 2026-07-15

Overview

Acid Red 66 is a synthetic azo dye widely used in various industries for its vibrant red color and excellent solubility in water. It belongs to the acid dye category, which is particularly effective for dyeing protein-based fibers like wool and silk, as well as synthetic materials. This dye is favored for its ability to produce consistent and long-lasting colors, making it a popular choice in textile manufacturing. Its versatility extends to applications in leather and paper industries, where color vibrancy and durability are essential.

Physical and Chemical Properties

Acid Red 66 typically appears as a red powder or granules. It is highly soluble in water, which facilitates its use in dyeing processes. The dye exhibits good color fastness, meaning it resists fading when exposed to light, washing, or other environmental factors. While specific molecular details like the formula and weight may vary by manufacturer, the dye's consistent performance and solubility are key attributes. Its stability under normal storage conditions ensures a long shelf life when kept in a cool, dry environment.

Main Applications

Acid Red 66 is primarily used in the textile industry for dyeing fabrics such as wool, silk, and nylon. Its vibrant hue and durability make it ideal for producing red shades in clothing, upholstery, and other textile products. Beyond textiles, the dye is also employed in the leather industry for coloring hides and in the paper industry for producing colored papers. Its water solubility allows for easy integration into various manufacturing processes, ensuring uniform color distribution.

Safety and Storage

Handling Acid Red 66 requires basic safety precautions to avoid inhalation or direct contact with skin and eyes. Workers should use protective gloves, masks, and goggles when handling the dye in powder or solution form. Storage recommendations include keeping the dye in a cool, dry place away from direct sunlight to maintain its stability. Properly sealed containers are essential to prevent moisture absorption, which could affect the dye's performance.

B2B Procurement Guide

When procuring Acid Red 66, B2B buyers should prioritize suppliers who provide detailed specifications, including purity and solubility. Compliance with industry standards such as REACH or OEKO-TEX is crucial for ensuring product safety and quality. Buyers are advised to request samples for testing before large-scale purchases to verify color consistency and performance. Price comparisons should consider factors like bulk discounts and shipping costs, as prices can vary significantly between suppliers.