The Fundamentals of Dyes and Pigments

The Fundamentals of Dyes and Pigments:

India’s dyes and pigments industry is vast, especially considering that textiles are one of the major industries here. The pigment industry’s 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.

What are dyes?

Dyes are colored substances that bond chemically with the subtract that is being applied. First, let’s 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.

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.

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 product’s look and appearance through the scattering of light.

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 7.

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.

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.

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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