Description

Vat Black 34 is a high-performance vat dye belonging to the anthraquinone chemical class, known for its exceptional color fastness and deep, rich black shade. Its primary value lies in delivering superior wash, light, and chlorine fastness, making it a critical component for demanding textile applications. This pigment is essential for manufacturers in the textile industry, particularly for dyeing and printing cotton, viscose, and other cellulosic fibers where long-lasting color integrity is paramount. It is also utilized in specialized applications requiring high-stability pigments.

Application

• Textile Dyeing: Primary application for dyeing cotton, linen, viscose, and other cellulosic fibers to achieve a fast black color.
• Textile Printing: Used in printing pastes for fabrics, offering excellent sharpness and durability of the printed pattern.
• Yarn Dyeing: Employed for dyeing threads and yarns intended for high-quality apparel, home textiles, and industrial fabrics.
• Denim Production: Can be used in the production of certain types of denim and other heavy-duty cotton fabrics.
• Pigment Manufacturing: Serves as a base for producing high-stability black pigments for specialized industrial uses.
• Leather Coloring: Applied in the dyeing of leather goods where color fastness is a critical requirement.

Basic Information

Product Name	Vat Black 34
CAS No.	12271-03-3
Molecular Formula	C₃₄H₁₄N₂O₆
Molecular Weight	546.49 g/mol
Synonyms	C.I. Vat Black 34; C.I. 69015; Vat Black B; Vat Black BB; Caledon Black BN; Indanthren Black BB; Mikethren Black BB; Navinon Black BB
EINECS	235-545-9

Quality Control

Our Vat Black 34 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive testing including strength, shade, particle size analysis, and fastness properties. A detailed Certificate of Analysis (COA) confirming conformity to agreed specifications is provided with each shipment. Our production adheres to relevant ISO standards and global regulatory frameworks including REACH compliance.

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 and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Black Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Particle Size (Residue on 80 mesh)	≤ 5.0%
Fastness to Washing (ISO 105-C03)	4-5 (Change in Color)
Fastness to Light (ISO 105-B02)	6-7
Solubility in Pyridine	Complete

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