Allura Red is a classic water-soluble acid azo dye, categorized as an anionic acidic colorant. It appears as a bright and pure red powder with full and vivid color. Featuring excellent water solubility and uniform dye uptake, it is mainly used for textile fibers, leather, paper, water-based inks, and compliant coloring systems for daily chemicals and non-food-contact applications. Unlike high-temperature inorganic ceramic pigments, it cannot withstand extreme heat and is intended for room-temperature to medium-temperature dyeing. With strong tinting strength and high color brilliance, it is a widely used red dye in industrial dyeing and water-based coloring, satisfying the coloring needs of various light industrial products with outstanding stability in compliant formulations.

Basic Information

Model: Allura Red (C.I. Acid Red 18, general industrial standard name, corresponding to international dye index Acid Red 18)

Category: Water-soluble acid azo dye (anionic acidic colorant, not a high-temperature inorganic ceramic pigment)

Core Composition: Azo sulfonate compound, pure organic acid dye system

Appearance: Uniform bright red powder, free of agglomeration and visible impurities, readily soluble in water to form a red solution

Note: Water-soluble organic acid dye, not suitable for high-temperature ceramic firing. It differs greatly from various inorganic high-temperature pigments in temperature resistance, application scenarios and solubility. Mixing use is strictly prohibited.

Core Technical Parameters

Core Product Features

Pure and Bright Color: Provides high-saturation true red with uniform hue, free of impurities, orange tint or dullness. Colored products feature bright and full color with outstanding visual effect and premium texture, superior to ordinary red dyes.

Excellent Water Solubility: Dissolves quickly and completely in cold water; aqueous solution is clear and transparent without additional cosolvent, no residue or screen clogging after dissolution. Simplifies dyeing operation, suitable for industrial batch dyeing and improves production efficiency.

Uniform and Stable Dyeing: Strong affinity for protein fibers and polyamide fibers with moderate and controllable dyeing speed, allowing precise adjustment of color depth. Dyed products show no color difference, streaking or spots, with high batch stability ideal for large-scale continuous production.

Strong Application Compatibility: Can be used alone for pure red dyeing or blended with other acid dyes such as Acid Yellow, Acid Blue and Acid Violet to create rich red shades including wine red, rose red, orange red and pink, satisfying customized coloring needs for various products.

Eco-Friendly, Compliant and Safe: Adopts compliant and environmentally friendly organic formula, free of EU-prohibited hazardous substances and irritating odor. No heavy metal pollution during production and application. Complies with global environmental and safety standards for light industrial products with no risks in industrial use.

Main Application Areas

Textile Printing & Dyeing: Dyeing of protein and polyamide fiber fabrics such as wool, silk, nylon and chinlon, applicable to fabrics, scarves, plush products and knitwear with uniform dyeing, qualified color fastness and long-lasting color.

Leather Processing: Dyeing and surface finishing of genuine leather and artificial leather for leather shoes, bags, belts and leather accessories, offering bright color, strong adhesion and improved appearance and grade of finished leather.

Paper & Paper Products: Dyeing of decorative paper, art paper, packaging paper, card paper and gift paper to produce bright red paper products with uniform color, no penetration, bleeding or cross-contamination.

Water-Based Inks & Coatings: Formulation of water-based inks, water-based color pastes, stationery inks, watercolor paints and craft coatings for pens, watercolors, children’s graffiti pigments and craft coloring, with good water solubility and vivid color.

Other Light Industrial Fields: Surface coloring of soap, detergent and daily chemical auxiliary materials, as well as medium-to-low temperature coloring of some plastic, bamboo-wood products and craft gifts. Strictly forbidden for high-temperature firing of ceramics and enamel, and not for direct food addition.

Usage Instructions

During use, first fully dissolve the product in warm water under stirring, filter and add to the dyeing system to ensure uniform dispersion and avoid color spots, patches or local color differences.

Dyeing is recommended in acidic to neutral environment with temperature controlled ≤100℃. Avoid strong alkaline environment and ultra-high temperature operation to prevent dye decomposition, darkening and discoloration.

This product has relatively strong tinting strength. Adjust dosage flexibly according to target color depth. Conduct preliminary testing before dyeing to verify qualified hue and color fastness before mass production.