Description

C.I.Acid Black 109 is a high-performance, metal-complex acid dye used for its excellent color fastness and deep, rich shades. This product is essential for achieving durable and vibrant coloration on protein-based fibers, particularly in demanding applications where wash and light fastness are critical. It is primarily needed by manufacturers in the textile and leather industries for dyeing wool, silk, and nylon.

Application

• Primary dyeing of wool and wool-blend textiles for apparel and carpets.
• Coloration of silk fabrics and garments requiring high color intensity.
• Dyeing of nylon fibers for technical textiles and hosiery.
• Leather dyeing for automotive upholstery, footwear, and fashion accessories.
• Ink formulation for specialized printing applications on protein substrates.
• As a colorant for other polyamide-type materials.

Basic Information

Product Name	C.I.Acid Black 109
CAS No.	12217-18-4
Molecular Formula	C40H23CrN7O12S2·2Na
Molecular Weight	Contact for details
Synonyms	Acid Black 109; C.I. 15711; Acid Chrome Black PV; Acidol Black M-R; Amichrome Black PV; Atul Acid Black PV; Chromium complex of 4-[(5-[(4,8-disulfo-2-naphthyl)azo]-2-hydroxyphenyl)azo]-3-hydroxy-7-nitro-1-naphthalenesulfonic acid, disodium salt; Neolan Black PV
EINECS	Contact for details

Quality Control

Our C.I.Acid Black 109 is manufactured under a strict quality management system. Every batch undergoes comprehensive testing for key parameters including shade, strength, solubility, and fastness properties to ensure consistent performance and compliance with industry standards. Certificates of Analysis (COA) detailing batch-specific results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Black powder or granules
Identification (IR)	Conforms to standard
Shade	Conforms to standard
Strength	100 ± 3%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Fastness Properties (Typical)	Wash: 4-5; Light: 5-6

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.