Dyestuff Knowledge Center

Getting a deep, uniform black with consistent shade and the required fastness can be challenging, especially when the same result needs to be reproduced across production batches. Acid Black 210 is widely used for black shades in leather and suitable textile applications where shade depth, consistency and performance matter. Choosing an Acid Black 210 supplier, however, involves more than comparing price per kilogram. Strength, shade tone, solubility, application performance,

For a nylon-cotton blend, the honest answer is usually both — not one or the other. Reactive dyes fix onto the cotton portion. Acid dyes fix onto the nylon portion. The two are run as a combined or sequential bath. Specify only one class and you almost always end up with one fiber pale, chalky, or off-shade against the other. If you're a trader quoting a nylon-cotton order, or a buying house reviewing a supplier's recipe, the real decision isn't "acid or reactive." It's which

You've just pulled 3,000 metres of dyed nylon carpet off the machine and the barré is visible under any light — horizontal banding, alternating light and dark stripes running across the full width, every reject roll costing you more than the entire dye batch combined. If you run a nylon carpet dye house, you already know exactly what that moment feels like. Nylon is acid dyes' single largest commercial application by volume. It is also, without question, the most technically

If you work in textiles, leather, or paper manufacturing, the question is never simply "which colour?" — it is always "which dye chemistry, and why?" The wrong choice of dyestuff costs you in re-dyeing, poor fastness, customer returns, and failed quality audits. The right choice — matched precisely to your fiber, your process, and your end-use requirements — delivers consistent results, batch after batch, across every market you serve. At Avi Chemicals, we have been manufactu

Every textile mill has had that moment — a batch comes out of the dyeing vessel looking wrong. The shade is patchy, the color breaks on wash testing, or the fabric itself feels compromised. Nine times out of ten, the root cause is not the process. It is the dye selection. Choosing the wrong dye class for a fiber does not just produce poor color. It drives up re-dyeing costs, triggers quality rejections, and creates delivery delays that ripple through the entire supply chain.