Description

Drimarene Black R2Bl CAS NO 61931-46-2 is a high-performance, reactive black dye belonging to the Drimarene range, known for its excellent wash and light fastness properties. This product is engineered to deliver consistent, deep black shades with high fixation rates, making it a cost-effective and reliable choice for demanding textile applications. It is primarily used by textile manufacturers and dye houses specializing in the coloration of cellulosic fibers such as cotton, viscose, and linen.

Application

• Exhaust dyeing of cotton and other cellulosic fibers.
• Continuous and semi-continuous dyeing processes for fabrics and yarns.
• Garment dyeing for consistent and vibrant black shades.
• Home textile applications, including bed linens and curtains, requiring high colorfastness.
• Technical textiles where durability and color consistency are critical.
• Printing applications as a component in reactive dye printing pastes.

Basic Information

Product Name	Drimarene Black R2Bl
CAS No.	61931-46-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Reactive Black 5; C.I. Reactive Black 5; Remazol Black B; Levafix Black E-B; Procion Black H-EXL; Sumifix Black B; Drimarene Black X-BL; Drimarene Black K-2B
EINECS	Contact for details

Quality Control

Our Drimarene Black R2Bl is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, shade, solubility, and fixation properties. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance protocols.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Black Powder
Color Strength	Standard Depth ± 3%
Shade	Conforms to Standard
Solubility (in water at 50°C)	≥ 100 g/L
Fixation Rate	≥ 70%
Moisture Content	≤ 5.0%
pH (1% solution)	5.0 - 7.0

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