How Dyes are Manufactured? - Sagar Colour Co

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How Dyes Are Manufactured?
Sagar Colour Co. is one of the foremost textile
dyes and chemicals manufacturers in Gujarat as
well as other parts of India. 
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Dyes Are Manufactured
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Understand Manufacturing Process of Dyes

• Before we understand how dyes are manufactured,
  lets know the difference between dyes and
  pigments. Though the words are used
  interchangeably, they arent the same thing.
• A dye is essentially soluble at some stage of the
  application process. The pigment, on the other
  hand, retains its crystalline or particulate form
  throughout the application.
• The application is a dye is to impart color to
  the substance. The chemical structure of the
  atoms of the dye is an aromatic ring structure.
  The side chain of the ring causes resonance, and
  the color gets released.
• Chromogen is the atomic structure which is the
  primary coloring substance. Based on chromogen,
  the chemical classification is done for dyes.

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Manufacturing Process

• Dyes are synthesized in a reactor. They are
  filtered and dried first. Then the dyes are
  blended with other additives.
• Sulfonation, halogenation, amination, and
  diazotization reactions make the synthesis step.
  After that, the separation process is performed
  using distillation, precipitation and
  crystallization processes.
• A dye mixture is formed by mixing the resultant
  of a chemical reaction between organic compound
  and alkali or acid. It is added to an
  intermediate solution, typically a sulfonating or
  nitrating compound.
• Finally, it is added to a solvent, and the dye
  mixture is obtained. The dye is separated,
  filtered and purified.
• The finishing operations include drying, grinding
  and standardization.

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Types of Dyes and their Composition

• Based on the main ingredients, the dyes are
  classified into various categories
• Acid dyes These dyes are made from acetic acid,
  sulphuric acid. When the acids and sodium sulfate
  and surfactants cause a chemical reaction with
  amphoteric proteins, different shades of colors
  are obtained.
• Basic dyes Here, acetic acid and softening
  agents along with amino derivatives cause
  chemical reactions to form different dyes. These
  dyes are mainly used in the paper industry.
• Direct dyes For cotton-wool or cotton-silk
  combination, azo dyes are used. They are
  combinations of chrome and copper compounds
  (metallic agents), fixing agents and sodium salts.

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Also read

• Chrome dyes They are formed on fiber directly.
  Made from chromium, iron or aluminum salts these
  colors are created formed on the fiber directly.
• These are a few popular types of dyes and their
  manufacturing processes. The choice of dye
  largely depends on the application.
• If you are looking for dyes manufacturer Company
  in India then Sagar Colour Co. is one of the
  foremost acrylic dyes, cationic dyes and
  textile chemicals manufacturers in Gujarat as
  well as other parts of India.
•  
• How to choose the best dyes manufacturer in
  India?
• Top 5 Dyes Manufacturers in India

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CONTACT US

• Phone No- 261 7139999
• E-Mail- sagarcolourco_at_yahoo.com
• Address- 403, Empire Estate, Near Udhana
  Darwaja, Ring Road. Surat 395002, India.

Website- http//dyesmanufacturerindia.com/