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Food Grade Agmatine Sulfate 99% white powder
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Q
why is indigo called a vat dye
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
Indigo is called a vat dye because it undergoes a unique process called "vatting" for dyeing textiles. Initially, indigo dye is water-insoluble, making it challenging to dye fibers directly. To overcome this, the indigo is chemically reduced in a vat or container, converting it into its soluble form, known as leuco indigo. In this soluble form, it can easily penetrate the fibers of the fabric. Once the fabric is removed from the vat and exposed to air, the indigo oxidizes and returns to its original, insoluble state, bonding firmly with the fibers and producing the characteristic blue color. This process of reduction, dyeing, and subsequent oxidation differentiates vat dyes like indigo from other types of dyes and gives them their distinctive properties, including superior colorfastness and the ability to produce rich, vibrant hues.
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