Description

Vat Blue 29 is a high-performance, synthetic organic pigment belonging to the vat dye class, known for its excellent color fastness and chemical stability. This compound is valued for its ability to deliver deep, durable blue coloration that resists fading from light, washing, and chemical exposure. It is a critical raw material for industries requiring long-lasting and vibrant colorants in their manufacturing processes.

Application

• Textile Dyeing and Printing: Primarily used for dyeing cotton, wool, and other natural fibers, offering superior wash and light fastness.
• Pigment Manufacturing: Serves as a key component in the production of high-quality industrial pigments and color concentrates.
• Plastics and Polymers: Imparts stable blue coloration to various plastic resins, including polyolefins and PVC.
• Inks: Used in the formulation of specialty inks for packaging, security printing, and other applications demanding color permanence.
• Leather Coloring: Employed in the dyeing of leather goods to achieve rich, fade-resistant blue shades.
• Paper Staining: Suitable for coloring paper where high color stability is required.

Basic Information

Product Name	Vat Blue 29
CAS No.	1328-50-3
Molecular Formula	C28H12N2O4
Molecular Weight	440.41 g/mol
Synonyms	Vat Blue 29; C.I. 74140; Indanthrene Blue CLB; Cibanone Blue 3R; Caledon Blue XRC; Durindone Blue 4B; Nihonthrene Blue CLB; 16,17-Dimethoxydinaphtho[2,3-a:2',3'-h]phenazine-5,9,14,18-tetrone
EINECS	215-545-7

Quality Control

Our Vat Blue 29 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, shade, and chemical purity. A Certificate of Analysis (COA) detailing key parameters is provided with each shipment to guarantee consistency and performance for your application.

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	Dark Blue Powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 1.0%
Ash Content	≤ 1.0%
Particle Size (Residue on 80 mesh)	≤ 5.0%
Fastness Properties (Typical)	Light: 7-8; Washing: 4-5

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