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Manufacturer, Supplier & Exporter of

a wide range of Dyes, Pigments & Food Colours

Reactive Dyes

Before going further let us first understand what is reactive dyes?

Reactive dyes are extremely coloured organic substances that are utilized for colouring textiles. The word ‘reactive’ itself refers to the chemical reaction that takes place when a reactive dye is applied to fibre. The particle of the dye formulates a covalent bond with the fibre – this is one of the toughest types of reactive dyes, and guarantees that the colouring is long-lasting. Unlike other dyestuffs that adhere to the material by absorption, fibre reactive dyes have a strong attachment and are hardly ever removed by washing.

The reactive dyes in textile constitute the most frequently used class of dyes for dyeing cellulosic textiles. Because of the decent versatile reactive dyes properties, such as ease of application, water solubility, variety of application techniques, availability of diverse shades, brightness of colour shades, good to excellent wash, light retreat and reasonable price.

Reactive dye usage is pretty popular in the textile printing industry and takes part in printing on nylon, cotton, wool, silk, blended, and many other fabrics. Properties of reactive dyes offer a cost-efficient, simple dyeing procedure and useful applications with an extensive range of colours and vibrant shades. The current applications of reactive dye include continuous and semi-continuous dyeing, exhaust dyeing, inkjet printing, direct printing, discharge printing, resist printing, and more.

To find the right Reactive dye and dyeing procedure for your business, we invite you to explore one of the best Reactive Dyes Manufacturers in India i.e. Megha International. We offer a diverse collection of reactive dyes and consumables that cater to various requirements. Moreover, we keep pace with the advancements in digital textile printing techniques to ensure that our customers have access to the latest technologies. For detailed information on the product Download Reactive Dyes PDF

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Reactive Dyes

Reactive Dyes Manufacturing Process

The manufacturing process for reactive dyes involves the following steps:

Synthesis of Dye

The first step in the reactive dyes process is synthesizing the dye in a laboratory using various chemicals and reagents. The resulting product is then purified and tested to ensure its quality meets the required specifications.

Preparation of Dye Solution

The synthesized dye is then made into a liquid form, which is mixed with other chemicals to create a dye solution. The solution is then tested and adjusted to ensure its consistency and colourfastness properties are optimal.

Dyeing Techniques

Once the dye solution is ready, it is applied to the fabric through various dyeing techniques such as exhaust, pad batch, or continuous methods. The choice of dyeing technique depends on the fabric type, the desired colour, and other factors.

Washing and Treatment

After dyeing, the fabric is washed and treated to remove excess dye and improve its colourfastness properties. The treatment involves rinsing the fabric in water, treating it with an alkali solution, and then washing it again.

Drying and Inspection

After treatment, the fabric is dried and inspected to ensure that it meets the required quality standards. The inspection involves checking the colour, shade, and colourfastness properties of the fabric.

Packaging and Shipment

Finally, the fabric is packaged for shipment. The packaging process involves folding the fabric neatly, labelling it, and packing it in a manner that ensures it does not get damaged during transit.

Types of Reactive Dyes

Reactive dyes classification depends upon their properties and then they are used in different applications accordingly. Let us understand them in detail.

Cold Brand Reactive Dyes

The cold brand dyes are formulated with a reactive system based on “Dichloro Triazine.” These dyes are highly reactive and are usually applied at a temperature of around 40°C. They are suitable for dyeing cellulose materials using various dyeing methods, such as exhaust, pad batch, pad dry steam, and pad dry thermofix.

Types of Reactive Dyes (Cold Brand Dyes Shade Card): – Megha International

Cold Brand Dyes
2%Product NameC. I. NameCAS NO.
 Yellow M4GYellow 2212226-49-2
 Yellow M8GYellow 8061951-86-8
 Yellow M4ROrange 1412225-86-4
 Orange M2ROrange 412225-82-0
 Red M5BRed 212226-03-8
 Red M8BRed 1112226-08-3
 Blue MRBlue 18113324-20-4
 Magenta MBVIOLET 1312270-87-0
 Turq. Blue MGBlue 140N/A
 Blue M2RBlue 81N/A
 Blue M4GDBlue 16872847-57-5
 Yellow MGRYellow 712226-46-9
 Golden Yellow MRYellow 4412270-91-6
 Yellow M3ROrange 8683929-91-3
 Orange MGOrange 16522-74-3
 Pink MBRed 7412270-82-5
 Violet C4RViolet 12NA
 Violet C3RNANA
 Violet 2BNHNANA
 N.Blue M3RBlue-912225-37-5
Hot Brand Reactive Dyes

Hot brand dyes are a type of dye that uses a “Monochloro Triazine” reactive system to bond with fibers during the dyeing process. They are applied at high temperatures, typically above 60°C, and are suitable for dyeing cellulosic materials such as cotton, rayon, and linen. The hot brand reactive dyes are known for their high colour fastness, brightness, and excellent wash-fastness. They are commonly used in the textile industry for dyeing fabrics and garments.

Types of Reactive Dyes (Hot Brand Dyes Shade Card): – Megha International

Hot Brand Dyes
2% Print Product Name C. I. Name CAS NO.
Yellow H4G Yellow 18 12226-48-1
Yellow H8G Yellow 85 71872-81-6
G.Yellow HR Orange 12 35642-64-9
Orange H2R Orange 13 12225-85-3
Red H8B Red 31 12237-00-2
Turquoise Blue HA Blue 71 12677-15-5
Turquoise Blue H5G Blue 25 12236-87-2
Red Brown H4R Brown 9 12225-66-0
Blue H5R Blue 13 12236-84-9
Navy Blue HR Blue 59 12270-71-2
Black HN Black 8 12225-26-2
Black G Black 1 6428-31-5
Yellow P6G Yellow 85 12226-63-0
Yellow P2RN Yellow 181 NA
Red 6BX Red 76 NA
Red PBN Red 24 70210-20-7
Red H2B Red 45 31778-10-6
Red P6B Red 218 113653-03-5
Red P4B Red 245 70210-46-7
Megenta HB Violet 26 NA
Blue P3R Blue 49 12236-92-9882
Blue P2RN Black 39 68259-02-9
Blue HGR Blue 5 16823-51-1
Blue H5G Blue 25 12236-87-2
Black PGR NA NA
HE Dyes

These dyes mostly referred to as HE dyes are fit for cellulosic materials and dyeing cotton. Highly Exhausted Dyes possess considerably higher fixation and exhaustion efficiency, which results in high reduction in cost, when compared to conventional reactive dyes. Good build up and high fixation is of precise importance when dyeing cellulosic blends/polyester. The exhaustion of these dyes can be controlled with particular temperature and salt addition in order to give level dyeing, before Alkali is added.

Types of Reactive Dyes (Highly Exhausted Dyes  Shade Card): – Megha International

HE Dyes
2%Product NameC. I. NameCAS NO.
 Yellow HE6GYellow 13577907-38-1
 Yellow HE46Yellow 812783-94-0
 Orange HEROrange 8491261-29-9
 Orange HE2ROrange 8657359-00-9
 Red HE3BRed 12061951-82-4
 Red HE7BRed 14161931–52–0
 Red HE8BRed 15271870-80-5
 Green HE480Green 1961931-49-5
 Turquoise Blue HABlue 71A7220-79-3
 Blue HERDBlue 16071872-76-9H
 Navy Blue HERBlue 17177907-32-5
 Black HEBLBlack 5NA
 Reactive Red BSRed 69NA
 Reactive Red DS4BRed 180NA
 Reactive Red W3RRed 180NA
 Reactive Deep Red CDRed 194NA
 Reactive Deep Red SBRed 239NA
 Reactive Yellow RGBYellow 145NA
 Reactive Red RGBRed 195NA
 Reactive Blue RGBBlue 19NA
 Reactive Navy RGBBlue 172NAH
 Reactive Orange W3ROrange 84NA
 Reactive Orange CD/GDROrange 122NA
 Reactive Brown GRBrown 18NA
 Reactive Red Violet MERed 195NA
 Reactive Red 111Red 111NA
Bifunctional Reactive Dyes

Bi Functional ME Series Dyes are pure in composition, having great fixation efficiency and pose no danger of staining the neighbouring white patches. The Bifunctional Reactive Dyes are formed by linking Vinyl Sulfonyl group to chromophore through a bond link of monochloro triazine group. This type of dye is used on cellulosic materials at a low dyeing temperature of 60°C.

Types of Reactive Dyes (Bifunctional Dyes Shade Card): – Megha International

Bifunctional reactive Dyes
2%Product NameC. I. NameCAS NO.
 Yellow ME7GLYellow 18572908-36-6
 Yellow ME4GLYellow 160 A61979-33-5
 Golden Yellow MERLYellow 145 A93050-80-7
 Orange ME2RLOrange 12212220-12-1
 Red ME2GRed 2223734-67-6
 Red ME3BLRed 19423354-52-1
 Red ME4BLRed 195 ANA
 Red ME6BLRed 196NA
 Red 3GFRed 22393051-43-5
 Blue BRFBlue 22193051-41-3
 Navy Blue ME2GLBlue 19493050-78-3
 Navy Blue MEBFBlue 22293051-44-6
 Red MERBLRed 198145017-98-7
 Red ME3BNRed 18072828-03-6
 Red ME3GLRed 223NA
 Blue ME2RLBlue 248NA
 Black MEGRNANA
 Black HFGRNA2580-78-0
Vinyl Sulfone Dyes

Vinyl Sulphone Brand Dyes utilize a reactive system based on “Vinyl Sulphone Ester.” These dyes are suitable for dyeing cotton and other cellulose-based materials using exhaust, batch wise, continuous, and thermolixation processes. Vinyl Sulfone Dyes are suitable for printing using one or two-phase application methods. The dyes have an excellent white effect on dyed grounds and can be used with discharge and resist printing methods. Moreover, they have easy wash-off properties and do not stain as the hydrolyzed dye does not have an affinity for the substrate.

Types of Reactive Dyes (Vinyl sulphone Dyes Shade Card): – Megha International

VS reactive Dyes
Dyeing 2%Printing 2%Product NameC. I. NameCAS NO.
  Yellow GRYellow 15NA
  Golden Yellow GYellow 1720317-19-5
  Yellow GNYellow 23NA
  Yellow GLYellow 37633-03-4
  Yellow FGYellow 426375-55-9
  Yellow 4GYellow 160NA
  Golden Yellow RNLOrange 10712220-08-5
  Orange 3ROrange 16730-40-5
  Orange 2ROrange 742986-20-1
  Red 5BRed 35522-75-8
  Red C2GRed 106105635-66-3
  Turquoise Blue GBlue 2112236-86-1
  Dark blue HRBlue 892538-85-4
  Navy blue GGBlue 203118685-33-9
  Blue BBBlue 22090341-71-2
  Navy blue RGBBlue 2506104-59-2
  Brown GRBrown 1812225-73-9
  Violet 5R]Violet 52390-56-9
  Black BBlack 54197-25-5
  Black HFGRNA2580-78-0
  Black WNMNANA
To know more in details about the classification of Reactive Dyes

Reactive Dyes Properties

The properties of reactive dyes, including their high durability and excellent colour fastness is mentioned below:
  • Reactive dyes are anionic dyes that are used for dyeing cellulose, protein and polyamide fibres.
  • During dyeing the reactive group of this dye forms covalent bond with fibre polymer and becomes an essential part of the fibre.
  • Reactive dyes are soluble in water and are found in liquid, power and print paste form.
  • Textile materials dyed with reactive dyes have a decent wash fastness with rating about 4-5 due to robust covalent bonds formed between fibre polymer and reactive group of dye.
  • Reactive dyes have an extremely good light fastness with rating about 6. The dyes have very stable electron prearrangement and can protect the degrading effect of ultraviolet rays.
  • Reactive dye gives brighter shades and has reasonable rubbing fastness.
  • Dyeing method of reactive dyes is simple and easy. It needs less time and low temperature for dyeing.
  • Reactive dyes are comparatively cheap and have good perspiration fastness with rating 4-5.

Advantages of Reactive Dyes

Looking for reactive dyes manufacturer and textile dyes manufacturers, find out the Advantages of Reactive Dyes offered by Megha International
  • Due to its ability to react with the medium gives a massive advantage to reactive dyes as they become much more long-lasting as well as visually different. This feature gives it a strong benefit over prohibited colours as well as cellulose colours.
  • Reactive Dyes have another solid advantage that is its wet speed, attained through an effective and straightforward colouring procedure.
  • The fibres that are dyed with reactive dyes can be safely dyed even with white garments without the risk of colouring it.
  • Reactive dyes are appropriate for dyeing a new type of cellulose fibre products like Lyocellfibres.

Reactive Dyes Uses

Reactive dyes are primarily used for dyeing cellulose fibres such as viscose and cotton, but they are also progressively gaining significance for wool and polyamide. The wide range of available reactive dyes is extensive and allows a large number of dyeing techniques to be used.

Some of the common
reactive dyes examples include:

Textile Colouring

Reactive dyes for cotton and other natural fibers are widely utilized in the textile industry for their colouring properties on fabrics such as cotton, wool, silk, and others. They are also used to dye synthetic fibers such as polyester, nylon, and acrylic.

Printing

Reactive dyes can be used to print designs on fabrics using different printing techniques such as screen printing, roller printing, and inkjet printing.

Paper Colouring

Reactive dyes are also used to colour paper and paper products. They are used in the production of paper for books, magazines, and other printed materials.

Leather Colouring

Reactive dyes are used to colour leather and leather products such as shoes, bags, and belts.

Food Colouring

Some reactive dyes are also used as food colouring agents, although their use in food is highly regulated and limited.

Overall, reactive dyes are versatile and widely used in various industries for their excellent colour fastness and durability.

About Megha International

Looking for a Reactive Dyes Exporter for brazil?

Megha International (ISO 9001: 2008) Established in the year 1995, at Mumbai, India is the
best reactive dyestuff manufacturer that offers an extensive range of dyes in national as well as international markets. Our research and development team carries out constant studies to develop products that reliably set us apart from our competitors and serve our clienteles best. With a remarkable focus on innovation and leveraging new-age expertise, we endeavour to sustain and develop a leading organization on a global scale. The company is a top reactive dyes manufacturer in India, and is striving to deliver the finest quality of products to the consumers, while being environmentally sensitive.

Market Area of Megha International

As a prominent reactive dyes supplier, Megha International is proud to export Reactive dyes in a wide range of countries across the globe. Our reach extends to many countries in Asia, including China, Vietnam, Singapore, Thailand, Malaysia, Korea, Philippines, Japan, and Indonesia.

We also serve clients in the Middle East, such as UAE, Saudi Arabia, Kuwait, Qatar, Iraq, and Iran.

In North Africa, we have clients in Algeria, Morocco, and Tunisia, while in Europe, we offer our services to Russia, the UK, France, Italy, Germany, the Netherlands, Romania, and Poland.

In South America, we serve clients in Brazil, Argentina, Colombia, Peru, and Guatemala, as well as in Central America, including Mexico, Costa Rica, and Honduras.

Finally, we also provide our services to clients in the United States and Chile. No matter where our clients are located, we are committed to delivering high-quality dyes and exceptional customer service.

Frequently Asked Question About Reactive Dyes

What are Reactive Dyes?

Reactive dye is chemically reacting with cellulose to formulate a covalent bond between cellulose and dye molecule.

Are reactive dyes eco-friendly?

If we are considering usages of reactive dyes, then definitely reactive dyes are eco-friendly.

What is the use of covalent bonds in reactive dyes?

Covalent bonds are used in reactive dyes to give very high fastness.

What types of fibers can be coloured with reactive dyes?

Reactive dyes are specifically designed for natural fibers such as cotton, wool, silk, and other cellulosic fibers. They can also be used to colour synthetic fibers such as polyester, nylon, and acrylic.

What are the advantages of using reactive dyes in textile colouring?

Reactive dyes offer excellent colour fastness and durability, which means the colour stays vibrant even after multiple washings. They also provide a wide range of colour options and can be used for both solid colouring and printing.

Can reactive dyes be used for food colouring?

Some reactive dyes can be used as food colouring agents, but their use in food is highly regulated and limited.

How can I use reactive dyes to colour my fabric?

Reactive dyes can be used for dyeing and printing fabrics through various techniques such as immersion dyeing, direct application, and screen printing. The process involves preparing the dye solution, immersing or applying the fabric, and then fixing the dye through a chemical reaction or steam treatment.

Are there any safety precautions to consider when using reactive dyes?

Yes, it is important to follow proper safety precautions when handling reactive dyes. They can be harmful if ingested or inhaled and can cause skin irritation or allergic reactions. It is recommended to wear protective clothing, gloves, and a face mask while working with reactive dyes.

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