Fiber reactive dye and uses

Reactive dyes are a new type of dye. Reactive dyes molecule can react with the fiber in the group. They have good fastness properties during dyeing. Reactive dyeing plays an important role in the coloration of cellulosic fibres, and it can be used in dyeing of cellulose like cotton or flax. United Kingdom first produced grades of Procion reactive dyes in 1956. Reactive dyes molecules including the mother dyes and reactive. Reactive is a group that can react with fiber.

Reactive dyes are used in high-end cotton, linen dyeing, technical requirements and the production of barrier is high, the export is more optimistic, for the annual exports growth is over 20%. While the disperse dyes are used in the dyeing of polyester fabrics, low-end products but need larger materials, as a result, this kind of dye industry faces certain difficulties at present.

Most commonly used dyeing method of reactive dyes are dip dyeing and rolling dyeing. Reactive dyes are made up of the mother dye, linking radicals and active radicals. This makes it use to work with fibers form strong covalent bond and has a series of characteristics unmatched by other dye cellulose fibers. It establishes the key position of development and use of it as a dye for cellulose fibre.

I. It is one of the best choice for the reactive dyes to replace banned dyes and other cellulose dyes such as sulfur dyes, azoic dyes and VAT dyes, etc.

II. Reactive dyes can get high level fastness properties especially wet fastness by economic processes and simple dyeing operations.

III. Reactive dyes have wide chromatographic, bright colors, strong performance and applicability, the color and properties adapt to the market demand for fibers and clothing.

IV. Reactive dyes are applicable for the dyeing and printing needs of new cellulose fiber products, such as Lyocell fiber.

In order to improve the efficiency of the dyeing of cotton fabrics, high success rate of dyeing (RFT) is very important. Meanwhile it has great effect on improving the business of printing and dyeing enterprises, especially raw cotton from different sources, inconsistent quality, dyeing of cotton fabrics will produce many uncertain factors to decrease dyeing rate. So pay more attention to the RFT and constantly improve the success rate of dyeing will have much effect. A lot of practice shoes that increase RFT can reduce total production cost and promote production earnings of fabric. Click here to read more!