Description

Vat Orange 3 is a high-performance vat dye belonging to the anthraquinone chemical class, known for its excellent fastness properties. This pigment is crucial for achieving durable and vibrant orange to reddish-orange shades on cellulosic fibers like cotton, linen, and viscose. It is an essential raw material for textile manufacturers, leather dyers, and specialty ink producers who require superior color retention against washing, light, and perspiration.

Application

• Textile Dyeing: Primary application for dyeing cotton, linen, rayon, and other cellulosic fabrics to achieve fast orange hues.
• Leather Coloring: Used in the dyeing of leather goods, providing rich and durable color for apparel, upholstery, and accessories.
• Specialty Inks: A key component in the formulation of high-fastness inks for security printing, packaging, and artistic applications.
• Paper Staining: Employed for coloring specialty papers where lightfastness and chemical resistance are required.
• Batch Dyeing Processes: Ideal for exhaust dyeing methods in jiggers, winches, and becks due to its vat dye properties.
• Continuous Dyeing Systems: Suitable for pad-steam and pad-dry thermofix processes in industrial textile production.

Basic Information

Product Name	Vat Orange 3
CAS No.	4378-61-4
Molecular Formula	C28H12N2O4
Molecular Weight	440.41 g/mol
Synonyms	C.I. Vat Orange 3; C.I. 59300; Vat Orange R; Indanthren Orange R; Caledon Orange R; Cibanone Orange R; Mikethrene Orange R; Pyranthrene Orange R
EINECS	224-489-7

Quality Control

Our Vat Orange 3 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Every lot is tested against key parameters including shade, strength, particle size distribution, and fastness properties. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and application test results is provided with each shipment to guarantee it meets your specific technical requirements.

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.

Specification

Item	Specification
Appearance	Orange to Reddish-Orange Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Particle Size (Passing 80 mesh)	≥ 95%
Fastness to Washing	≥ 4-5 (ISO 105-C03)
Fastness to Light	≥ 5-6 (ISO 105-B02)

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