Cotton fabric printing by reactive dye:
Cotton fabrics can be printed in different printing styles by different dyestuffs. Reactive dyes, vat dyes, azoic dyes, direct dyes, basic dyes, aniline black, etc. can be used for printing cotton fabrics. https://bdfabric.com/flock-printing-in-textile/
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Printing of cotton fabrics by reactive dyes:
It forms a covalent bond with the reactive dye fiber and becomes a part of the fiber. These dye molecules have some reactive groups, which react with the functional group of fibers such as cellulose -OH group protein – NH2 group.
This dye is currently being used more in dyeing and printing. The method of application of this dye is very simple and cheap. Washing and lightfastness qualities are also good. It can be used in both cold and hot conditions.
The Procion dyestuff of the reactive group, invented by ICI is now widely used for printing, which is fixed in the fiber through chemical linkage with the fiber. Printing can be done in different shades by this Dye Staff. This Procion reactive dye can be divided into three ways. E.g.
- Procion H dyes
- Procion Supra dyes
- Procion M dyes
1. Cotton fabric printing by reactive dye -Procion H dyes:
This type of dye is slightly reactive. The durability of the printing paste made by this dye is remarkable due to the low reactivity of this dye, which is why it is used by the steaming method.
2. Cotton fabric printing by reactive dye -Procion Supra dyes:
The reactivity of this type of dye and the durability of the printing paste is comparable to that of Procion H.
3. Procion M dyes:
This dye is a more reactive type. Therefore, it is used in various techniques. This dye is useful in both non-steaming and steaming methods. All these dye Chloratizine class paints, which belong to the cold brand. Printing shades are available in a wide range of specific dyes of this Procion class by mixing any proportion with any dye belonging to that class. Procion ‘M’ and Procion ‘H’ dye are not usually used interchangeably. However, it can be used in combination with Procion H and Procion Supra. The chemical linkage of fibers with Procion dye is usually organized in the presence of alkali and under the influence of heat. The development process can be organized as follows.
(1) Steaming process
(2) Baking (dye heat) process
(3) Flash-aging process
(4) Air-hanging process
(5) Wet development process
(6) Pad (Alkali) batch process
No matter which of the above methods the printing paste is fixed on the cloth, there is a slight difference in the material of the printing paste of each of these methods. Cotton fabrics can be printed indirect style through various fixation methods by any class of dyes of Procion Reactive Dye Staff.