Description

Immedial Black Ft is a high-performance sulfur dye intermediate, also known by its CAS registry number 1326-88-1. This compound is essential for producing deep, durable black shades with excellent fastness properties on cellulosic fibers. It is a critical raw material for dye manufacturers and textile processors seeking cost-effective and reliable coloration solutions. Its primary value lies in delivering consistent quality and batch-to-batch uniformity for industrial-scale applications.

Application

• Textile Dyeing: Primary use in the sulfur dyeing process for cotton, rayon, and other cellulosic fabrics to achieve deep black shades.
• Yarn Coloring: Employed in the continuous dyeing of yarns for denim, workwear, and home textiles.
• Leather Processing: Used as a colorant in the dyeing of leather goods, providing good penetration and color depth.
• Paper Staining: Application in specialty paper production where deep, uniform black coloration is required.
• Intermediate Synthesis: Serves as a key chemical intermediate for the synthesis of more complex sulfur dyes and pigments.
• Industrial Fabric Production: Used for dyeing canvas, tarpaulins, and other heavy-duty industrial fabrics.

Basic Information

Product Name	Immedial Black Ft
CAS No.	1326-88-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Immedial Black FT; C.I. Sulfur Black 1; Sulphur Black 1; C.I. 53185; Immedial Black; Kayaku Homodye Black B; Mitsui Sulphur Black B; Sulphur Black FT; D&C Black No. 1; Leather Black SB
EINECS	215-541-5

Quality Control

Our Immedial Black Ft is manufactured under a strict quality management system to ensure it meets the rigorous demands of the textile and chemical industries. Every batch is tested for key parameters including color strength, solubility, and impurity profile to guarantee consistent performance and reliable results in your downstream processes. Certificates of Analysis (COA) documenting purity, physical properties, and conformance to specification are available upon request.

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	Black to bluish-black powder or granules
Identification (IR)	Conforms to standard
Color Strength	≥ 100% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 1.0%
Particle Size (Typical)	Passes through 80 mesh

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