Description

Acid Blue 140 is a synthetic anthraquinone acid dye known for its bright, clear blue shade and excellent lightfastness. It is a critical component for achieving high-quality, durable coloration in polyamide fibers like nylon, where it offers superior wash and perspiration fastness. This dye is essential for manufacturers in the textile and leather industries seeking vibrant, long-lasting blue hues for apparel, automotive interiors, and upholstery fabrics. Its consistent performance makes it a reliable choice for industrial dyeing processes requiring precise color matching and stability.

Application

• Primary dyeing and printing of polyamide (nylon) fibers for apparel and sportswear.
• Coloration of leather goods, including footwear, bags, and automotive upholstery.
• Dyeing of wool and silk textiles to achieve bright blue shades.
• Used in the production of paper for specialty applications requiring color.
• Potential application as a colorant for inks and other specialty chemical formulations.

Basic Information

Product Name	Acid Blue 140
CAS No.	12219-21-5
Molecular Formula	C32H26N4Na2O8S2
Molecular Weight	728.66 g/mol
Synonyms	Acid Blue 140; C.I. 62125; Nylosan Blue N-BLN; Telon Blue ANL; Acid Blue ARL; Supranol Blue BLW; Anthraquinone Blue BL; Acid Brilliant Blue BL
EINECS	Contact for details

Quality Control

Our Acid Blue 140 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Every lot is tested against rigorous internal specifications for parameters such as color strength, shade, solubility, and impurity profile. A Certificate of Analysis (COA) detailing these results is provided with each shipment to guarantee compliance with your 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.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to Standard
Solubility	Conforms

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