Role Of Pigment Green 7 In The Coating Industry

Ruchit Ramoliya | 26 July 2022

Understanding Pigment Green 7 And Its Difference From Dyes

The Pigment, also known as a colorant, is a finely grounded insoluble particle used to provide color to materials when mixed with coatings and paint formulations. They also provide desired chemical and physical properties to the dry or wet film. Pigment Green 7 is one such example of this type of Pigment.

Pigments are categorized into two types: Inorganic and Organic pigments.

Organic Pigments

These types of pigments are traditionally transparent. However, with the introduction of modern manufacturing techniques, it is now feasible to produce high opacity pigments.

Mostly organic pigments exhibit effective transparency with the improvement in dispersion. Whereas in the case of inorganic pigments that have large-sized particles, opacity improves when there is good dispersion.

Inorganic Pigments

The beginning of inorganic pigments dates back to the cave paintings that were done almost 30,000 years ago. They usually require modification, although occurring naturally for manufacturing paint. Pigment Green 7 is an example of inorganic Pigment used in the coating.

Pigment properties	Inorganic pigments	Organic pigments
Purity and color	They are often dull	They are very bright.
Opacity	It is quite high	It is kind of transparent
Weather resistance	It varies as it depends on chemistry.	It is insufficient
Resistant to heat	Generally, it is more than 500°C; rarely, it is less than 200°C	Varies between 150°C to 200°C
Chemical resistant	It varies as it depends on chemistry	It is high except in the case of salts
Cost	Varies between low to medium	It is in the medium range

How Do Pigments And Dyes Differ?

Pigments, whether organic or inorganic, are not capable of dissolving in the medium it is dispersed. They are made of distinct particles, which provide the medium for their opacity and color.

The name 'primary particles' is given to the smallest unit in the particle. These units' shape and structure depend on the Pigment's crystallinity. During the production process of the Pigment, primary particles generally cluster together and produce agglomerates. When the dispersion of the Pigment happens into the polymer, there is generally a requirement of high shear to crack up the agglomerates. The process helps in improving the tinting strength. In addition, it is also essential for a pigment to be resistant to heat, weathering, light, and chemicals. (You can find all these properties in Pigment Green 7). Dhanveen pigments is one of the largest manufacturers of phthalocyanine pigments.

There is a difference between the properties of pigments and dyes. Dye is a type of substance used to provide color to materials with some degree of permanence. For instance, polymer soluble dyes get dissolved in the medium in which they are dispersed. Dissolving the dye in the medium means that the transparency of the medium remains unchanged, and there are no visible particles.

A Detailed Description Of The Properties Of Pigment Green 7

Pigment Green 7 is also known as Pigment green 7 Lake, Pigment Green 7FS, Pigment Green BG, and Permanent Green BG.

It has very good stability and is dark bluish-green in color. Pigment Green 7 is easily dispersed in alcohol or water, and when added with other types of inorganic pigments, it makes the color more opaque and permanent. It decomposes above 300°C, has a pH value of 6-7, and has an oil absorption of 25-35ml/100g.

It exhibits excellent hiding power, chemical stability, and tinting strength. The Pigment Green 7 has excellent brightness and resistance to outdoor weathering compared with other colorants. The most important feature of this Pigment is that it exhibits superb coating, film-forming, and adhesive characteristics in one or two layers. It is perfect for use in industries such as plastics, paints, and powder coatings such as gloss enamel paints, powder coats, and automobile body colors.

Application Of Pigment Green 7 In The Coating Industry

There are various uses of Pigment Green 7 for coating in industries such as architecture, automotive, and other industries.

Pigment Green 7 For Architectural Coatings

Architectural coatings are those coatings and paints used to coat homes and buildings. Pigment Green 7 is mostly designated for particular uses such as wall paints, deck finishes, or roof coatings. The usage of the colorant does not matter as each architectural coating must provide protective, durable, and decorative functions. Depending on its planned end-use, various test protocols may be used to assess an architectural coating.

Key features and attributes of the green Pigment that help in architectural coatings –

There is an availability of a wide variety of greens and blues.
They have an excellent resistant property to flocculation and crystallization.
They exhibit properties such as ease in dispersion, durability, and high tinting strength.
They are also resistant to heat.

Pigment Green 7 For Automotive Coatings

There are various applications of Pigment Green 7 in the coating industry. The car's color is made of four types of functional layers coated utilizing particular techniques with a definite time gap between them. The four functional layers include finish primer, corrosion protection, base coat, and clear coat. There is a requirement for these different layers to protect the car's surface from various external forces that they are commonly subjected to.

Climatic changes such as fog, heat, snow, cold, UV radiation, humidity, and pollution can do physical damage to the car. Furthermore, tree branches, mud, and gravel that crash into the car as well as the brush used to clean its surface, can cause wear and tear.

Thus, the paint needs to be cost-effective and long-lasting. Pigment Green 7 is the best pigment green for coating the car as it protects its aesthetics for a long time. It is also for this very reason that there is a presence of so many layers and substances in the car paint to meet all these demands effectively.

Key features and attributes of Pigment Green 7 that help in automotive coating –

They do not react to heat.
They are composed of features such as high durability, tinting strength, and ease in dispersion.
The green Pigment is resistant to flocculation and crystallization.

Pigment Green 7 For Industrial Coatings

When Pigment Green 7 is used for industrial coatings, it provides both aesthetic as well as protective properties. When one sees it volume-wise, most industrial coatings exhibit protective properties. It basically means that it helps control concrete or steel corrosion.

Key features and attributes of Pigment Green 7 that help in industrial coating –

There is a presence of a wide range of greens and blues.
It resists crystallization and flocculation very well.
Dispersion is easy and has high tinting strength and durability.
This Pigment is excellent at resisting heat.

The demand for green Pigment is growing at a fast pace in recent times. The increase in the development of buildings in our developing economy is the main factor contributing to the rise in demand for green Pigment. Dhanveen Pigments is the largest plastic pigments, where you can get the best quality pigment for coating. They are cost-effective, bright in appearance, and possess all the features that one requires in the coating industry. We also provide the best customer experience so that you face no challenges. You can check our website today to better understand our products and services.

What Are The Applications Of Pigments ?

09 June 2022

Pigments are insoluble, finely ground colorants. Selective absorption of wavelength through light transmission changes the color of pigments. They can be organic or synthetic. Used in various industries as coloring agents, they help protect from corrosion and rust. Pigments, also known as colorants, contain special properties that make them perfect materials for coloring.

Why Choose Pigment Green 7 For Aqueous Inks

Why Choose Pigment Green 7 For Acqeous Inks?

29 June 2022

Pigment green 7 stands under the category head phthalocyanine dyes. It is a copper (II) complex with Phthalocyanine that is chlorinated. The green pigment is insoluble in any liquid solution. It is a soft, green powder with shiny and high-intensity color. Aluminum trichloride helps in the extraction of Phthalocyanine green from Phthalocyanine blue. One can find great stability in Pthalo green as it does not react with solvent, heat, alkali, and acid ultraviolet radiation. The stability and transparency of phthalocyanine dyes make them capable of use in various industries.

What Are Fluorescent Pigments
And How Do They Work?

16 March 2022

'Fluorescent' colors soak up and throw back more light than conventional colors. Since fluorescent pigment absorbs and disperses more light, they appear brighter, dazzling, vivid, and eye-catching. Fluorescent is more commonly known as neon pigments. The neon pigments use large amounts of both the visible spectrum and lower wavelength. The difference between conventional colors and neon pigment powder is that fluorescent pigment powder soaks up and transforms the light energy of the dominant wavelength. Still, it also transforms the wavelength of ultraviolet rays. However, other conventional colors get lower in the visible spectrum.