Understanding Acid Yellow 241: A Dye for Vibrant Textiles
Introduction
Name:C.I.Acid Yellow 241
Molecular Structure: Azomethine,Metal Complexes
C.I.Acid Yellow 241,314.27,C17H11N2NaO3,Acidol Yellow M-2GLN
Molecular Formula:C17H11N2NaO3
Molecular Weight: 314.27
Manufacturing Methods : 2-Aminobenzoic acid diazo, and Naphthalen-2-ol coupling, and then turn it into 1:2 chromium complex.
Properties and Applications: dark red light yellow. Mainly used for wool, silk and polyamide fiber dyeing and printing.
Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 6-7 | 4-5 | 4-5 | 4-5 | 4-5 | 4-5 | 4-5 | 4-5 |
Acid Yellow 241, also known as C.I. Acid Yellow 241, is a crucial dye in the textile industry. Its molecular structure, manufacturing methods, and applications make it a prominent choice for dyeing and printing various fibers. This article delves into the composition, properties, and applications of Acid Yellow 241, shedding light on its significance in the realm of textile coloration.
Chemical Composition and Structure
Acid Yellow 241 belongs to the class of azomethine dyes, specifically metal complexes. Its chemical nomenclature is C.I. Acid Yellow 241. The molecular formula for this dye is C17H11N2NaO3, and its molecular weight is 314.27. This dye is also known by its trade name, Acidol Yellow M-2GLN.
Manufacturing Methods
The manufacturing of Acid Yellow 241 involves a series of chemical reactions. The process starts with 2-Aminobenzoic acid diazo and Naphthalen-2-ol coupling. Following this, the resulting compound is transformed into a 1:2 chromium complex. This complex formation is a crucial step in creating the dye with the desired properties.
Properties
Acid Yellow 241 exhibits a distinct dark red light yellow color. Its properties make it especially suitable for dyeing and printing on wool, silk, and polyamide fibers. The dyeing process using Acid Yellow 241 imparts vibrant and lasting hues to these textiles, making it a preferred choice in the industry.
Applications
Acid Yellow 241 finds its primary applications in dyeing and printing various types of fibers. Specifically, it is extensively used on wool, silk, and polyamide fibers. The dye offers vibrant and appealing colors, making it a preferred choice for the fashion and textile industry. Its ability to produce lasting, bright shades has contributed to its widespread adoption.
Standards and Fastness Properties
For any dye, fastness properties are critical to determine its suitability for various applications. Here are the standard fastness ratings for Acid Yellow 241:
- Light Fastness (ISO): 6-7 (on a scale of 1-8, indicating excellent lightfastness)
- Soaping Fastness: 4-5 (good resistance to soaping)
- Perspiration Fastness: 4-5 (excellent resistance to perspiration-induced fading or staining)
- Oxygen Bleaching Fastness: 4-5 (good resistance to bleaching)
- Fastness to Seawater: 4-5 (excellent resistance to fading or staining when exposed to seawater)
Conclusion
Acid Yellow 241, also known as C.I. Acid Yellow 241, is a significant azomethine dye used in the textile industry. Its chemical composition, manufacturing process, and versatile applications in dyeing and printing wool, silk, and polyamide fibers make it an indispensable component of the textile coloration process. Understanding its properties and standards is essential for ensuring high-quality and long-lasting coloration in textiles.
