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Direct Dyes Manufacturers

Leading Manufacturer of Direct Dyes Color – Which Brings out the best in everything

Red Sun Dye Chem foremost organization known as Manufacturer, Supplier and Exporter, of Direct Dyes, Acid Dyes, Food Color, Solvent Dyes, and Reactive Dyes. We are considered to be the leading firm in manufacturing the Direct dyes globally since our establishment in 2000 for adding colors to your life. With our manufactured Direct Dyes, we take India’s ancient creativity tradition of dyeing with natural and vegetables color to the next level. We take an immense pleasure to introduce ourselves for providing a high-class and well-engineered range of products ships globally and include a variety of Direct Dyes in diverse range of strength and shades. It's our experience that has enabled up to develop and maintain "State of Art" Infrastructure. We provide these products in diverse packaging options to attain the complete satisfaction of the clients.

We are engaged in offering the services to enable our services to reach the destination where they can perform effectively and face any type of competitive business market to attain their targets. With a strong vision of corporate governance, business ethics and customer satisfaction, we are growing from strength to strength and Red Sun Dye Chem is structured around classic organization department such as operations, marketing finance etc. with a strong belief in fundamental proven business practices. Mean while our team has executed unique and progressive conduct environment of management control system.

At the same time, our group has executed unique and progressive conduct environment of management control system. The company has emerged with its dedication and commitment to provide quality products & services to its client and become one of the significant players in its area of operation. The phenomenal growth has been possible for the variety and quality of its products.

Direct Dyes

Direct dyes are also called substantive dyes due of their outstanding substantively for cellulosic textile materials like cotton and viscose rayon. These classes of dyes derive its name from its property of having direct similarity for cellulosic fibres, when applied from an aqueous solution. These manufactured Direct Dyes are Sodium Salt of Sulphonic acid and most of them contain an azo group as the main chromophore and these dyes are carried out in alkaline condition. Direct dyes are used on cotton, paper, leather, wool, silk and nylon. They are also used as pH indicators and as biological stains.

Direct dyes are also known as substantive dyes which are normally carried out with the addition of sodium chloride (NaCl) or sodium sulfate (Na2SO4) or sodium carbonate (Na2CO3). Direct dyes are used on silk and nylon, cotton, leather, paper, wool; they are also used as pH indicators and as biological stains. We produce the supreme quality of synthetic food colors, reactive dyes, pulp dyes, Acid Dyes, Solvent Dyes and Dyes Intermediates are applicable on leather, textile, wool, silk, fur, nylon and paper.

direct dyes manufacturer in india

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Dyeing Procedure

Direct dyes are also called substantive dyes due of their outstanding substantively for cellulosic textile materials like cotton and viscose rayon. These classes of dyes derive its name from its property of having direct similarity for cellulosic fibres, when applied from an aqueous solution. These manufactured Direct Dyes are Sodium Salt of Sulphonic acid and most of them contain an azo group as the main chromophore and these dyes are carried out in alkaline condition. Direct dyes are used on cotton, paper, leather, wool, silk and nylon. They are also used as pH indicators and as biological stains.

Direct dyes are also known as substantive dyes which are normally carried out with the addition of sodium chloride (NaCl) or sodium sulfate (Na2SO4) or sodium carbonate (Na2CO3). Direct dyes are used on silk and nylon, cotton, leather, paper, wool; they are also used as pH indicators and as biological stains. We produce the supreme quality of synthetic food colors, reactive dyes, pulp dyes, Acid , Solvent Dyes and Dyes IntermediatesDyes are applicable on leather, textile, wool, silk, fur, nylon and paper.

Properties of Direct Dyes

Direct Dyes have some uniqueness and the below mentioned are the few properties of direct dyes.

  • Direct Dyes are known as water soluble dyes
  • This dye is anionic in nature
  • The tinctorial power of this dye is very good
  • Direct Dyes require electrolyte for its exhaustion
  • Direct Dyes dyeing process is carried out in alkaline condition
  • These dyes are mainly applied for cellulosic as well as protein fibers 
  • Fastness properties are average specially wet fastness
  • Fastness properties are improved by after treatment
  • It is not broadly used as compared with reactive dyes
  • Direct Dyes are used for cheap goods for local market

Classification of Direct Dyes according to application

Based on migration test and salt control ability these dyes are classified as follows

Class – A (Self leveling)

These dyes have good leveling uniqueness and are competent of dyeing consistently even when the electrolyte is added at the beginning of the dyeing operation. Dyes in this group have good leveling properties and are competent of dyeing consistently even when the electrolyte is added at the beginning of the dyeing operation.

  • Dyes migrate well
  • High leveling power
  • They may dye unevenly at first but further boiling will bring about even distribution
Class – B (Self controllable)

These dyes have poor leveling or migration properties. They can be controlled by addition of electrolyte, usually after the dye bath has made the dyeing temperature. They need moderately large amount of salt to exhaust well.

  • Poor leveling power
  • Dye exhaustion must be brought about by controlled salt addition
  • If these dyes are not taken up uniformly in the initial stages, it is extremely difficult to correct the levelness
Class – C (Temperature controllable)

These dyes show relatively poor leveling or migration and their substantively increases very rapidly with increasing temperature. Controlling rate of increase of the dye bath temperature, as well as controlling the salt addition, controls their rate of dyeing.

  • These are not self leveling
  • Highly sensitive to salt
  • The exhaustion of these dyes cannot adequately be controlled by addition of salt alone and they require additional control by temperature

Specification of Direct Dyes

Dye type: Direct dyes (60°C exhaust dyeing)
Fiber: Cellulose, PES/CEL, WO/CEL, PAN/CEL, viscose and other blends
Application: Exhaust for yarn, piece, woven fabric
MF: C26H15N2O4, C26H21N5Na2O19S6
State: Powder
CAS No.: 1064-48-8
Dyestuff like: Direct Dyes Black, Yellow, Blue, Red, Green, and Orange
Chemical composition of Direct Dyes: They are simple salts of complex sulfonic acids
Structure of Direct Dyes: More than 75% of all direct dyes are non metalized azo structures, great majority of them are diazo or polyazo types
Ionic Nature: Their ionic nature is anionic
Solubility: Totally water soluble
Affinity: Direct dyes have affinity for various types of fibers such as leather, wool, cotton, silk etc.

Quality Control of Direct Dyes

The manufacturing procedure unfurls under the attentive gazes of the specialists. The entire procedure is synchronized into various divisions. Each for an unmistakable reason. For moving starting with one division then onto the next the items require to satisfy the recommended standards of the one being referred to. It's just when a lot of items have experienced every one of them that a cycle is considered over. The cycle incorporates the entire range from gathering of crude materials to conclusive conveyance.

It has been our practice since origin to guarantee that each clump of generation experiences severe quality checking and we target giving to our esteemed clients quality items and consistency thereof. We ensure that the correct item arrives at the correct client – no compromise on quality. This has been conceivable with the assistance of most complex testing instruments like spectrophotometer and different types of gear introduced in our Laboratory. Experienced Chemists with hands on experienced in Dyestuff industry deal with the quality parameters, in this manner helping the association gain the reliability of the huge number of clients. We hold test experiences testing against the affirmed tests, under severe supervision of our certified scientific experts. This is one reason why all overseas buyers consider us as long-term partners and look up to as reliable source for quality Dyestuffs.