The Fundamentals of Dyes and Pigments

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The Fundamentals of Dyes and Pigments

• MeghmaniGlobal

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(No Transcript)
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• Indias dyes and pigments industry is vast,
  especially considering that textiles are one of
  the major industries here. The pigment industrys
  production value in India reached roughly 133.52
  million tons. (Source)
• So let us understand the basics of dyes, the
  basics of pigments, and what the difference
  between the two is.

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What are dyes?

• Dyes are colored substances that bond chemically
  with the subtract that is being applied. First,
  lets take the definition of The Ecological and
  Toxicological Association of Dyes and Organic
  Pigment Manufacturers dyes are said to be
  fluorescent, organic substances that provide
  color to the substances where it is being
  applied.
• Dyes are very soluble and can actually attach
  themselves to the fabric or the substance where
  it is being poured. Usually, dyes are applied for
  the purposes of decoration, aesthetics, and
  identification as per certain dye manufacturers
  in India.

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Different types of dyes

• Natural dyes
• The dyes which are obtained from natural
  resources are natural dyes. They were the primary
  source of dyes, traditionally. But, nowadays,
  even natural dyes are synthetic dyes. Products
  such as leather, clothes, food, and houses have
  all been enhanced with dyes.
• Synthetic dyes
• The dyes that are extracted from organic or
  inorganic compounds are known as synthetic dyes.
  The recent dyes that have become prevalent are
  acid, direct, primary, reactive, mordant, metal
  complex, vat, sulfur, and disperse.
• Synthetic dyes are affordable and come in a
  variety of colors. They also provide a better
  quality of colors than natural dyes.

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What are pigments?

• Pigments can be considered powdered materials
  that do not mix with water. Pigments do enhance
  the materials, but they are insoluble. If we put
  it in a straightforward way, pigments are powders
  that improve the products look and appearance
  through the scattering of light.

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Different types of pigments

• Inorganic pigment
• The pigments made of ground material are known
  as inorganic pigments. They are not made of
  carbon or rings but metals and metallic salts.
  Pigments are more opaque and not soluble in
  aqueous solutions.
• The best part is, though, that inorganic
  pigments are very budget-friendly and very easy
  when it comes to manufacture them. Moreover, if
  produced in large quantities, pigments are very
  profitable. The most commonly used inorganic
  pigment is called Pigment.

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• Organic pigment
• The pigments comprised of carbon chains and
  rings are organic. This makes these pigments
  extremely stable. Historically, organic pigments
  were usually extracted from flora and fauna.
• They can be obtained from animals and
  vegetables or through synthetic chemistry.
• What is the difference between dyes and
  pigments?
• Both dyes and pigments have their uses in the
  industries but are they fundamentally different?
  Let us read that in brief.

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• Solubility
• Pigments are insoluble in solvents, while dyes
  are soluble in water and other solvents.
• Size of particles
• Pigment particles are more prominent than the
  size of the dye particles. This is because
  pigments have larger particles which are helpful
  in the scattering of light.
• Light resistance
• Compared to dyes, pigments are more resistant to
  light. Dyes are also more prone to losing color,
  brightness, or spark if exposed to heat, light,
  or air. However, when it comes to pigments, they
  are better at retaining brilliance and luster,
  and aura despite being exposed to sunlight.

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Conclusion

• You can go in-depth and understand the technical
  fundamentals of pigments and dyes, or you can go
  through sufficient knowledge to understand these
  two substances precisely.
• Colors are an essential part of our day-to-day
  lives and represent whole emotions, feelings,
  vision, and goals. But, when it comes to dyes and
  pigments, each holds a unique feature of its own
  that makes it valuable to many industries, not
  just in India but across the world.

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