Description

Vat Blue 64 is a high-performance vat dye belonging to the anthraquinone chemical class. It is valued for its exceptional color fastness properties, particularly its resistance to light, washing, and chlorine, making it a critical component for demanding textile applications. This product is essential for manufacturers in the textile dyeing and printing industries who require durable and vibrant blue shades on cellulosic fibers like cotton and viscose. Consistent batch-to-batch quality ensures reliable performance in industrial-scale production processes.

Application

• Textile Dyeing: Primary application for dyeing cotton, linen, viscose, and other cellulosic fibers to achieve deep, fast blue colors.
• Textile Printing: Used in pigment printing pastes for fabrics requiring high wash and light fastness.
• Denim Production: Employed in the dyeing of yarns for high-quality, colorfast denim fabrics.
• Industrial Fabrics: Suitable for coloring workwear, awning cloth, and other fabrics exposed to harsh environmental conditions.
• Paper Coloring: Can be used for specialty paper grades where high lightfastness is required.
• Leather Dyeing: Applied in the dyeing of leather goods for a stable blue coloration.

Basic Information

Product Name	Vat Blue 64
CAS No.	12237-36-4
Molecular Formula	C28H14N2O4
Molecular Weight	442.42 g/mol
Synonyms	C.I. Vat Blue 64; Vat Blue GCD; C.I. 66730; 8,16-Pyranthrenedione, 5,13-dihydro-; Amanthrene Blue GCD; Caledon Blue GCD; Cibanone Blue 2R; Indanthren Blue GCD; Mikethrene Blue GCD; Nihonthrene Blue GCD; Paradone Blue GCD; Sandothrene Blue N-GCD; Solanthrene Blue GCD
EINECS	235-428-9

Quality Control

Our Vat Blue 64 is manufactured under a strict quality management system. Each batch is tested against stringent in-house specifications to ensure consistent shade, strength, and application performance. Key parameters such as color value, particle size distribution, and reduction properties are rigorously controlled. A Certificate of Analysis (COA) detailing these specifications is provided with every shipment to guarantee reliable quality for your production needs.

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 container must be kept tightly closed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Dark Blue Powder
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Particle Size	≥ 95% passes 80 mesh
Dispersion in Water	Good
Fastness to Light	7-8 (Standard Depth)
Fastness to Washing	4-5

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