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What is ink and what is its composition


What is paint and what is its composition

What is ink and what is its composition?

In order to define what ink is, it is first necessary to know that there are several possibilities of characterizing what "ink" is.

For example, in the reference of most dictionaries, one of the explanations found for the word "paint" is "synthetic substance of color, which adheres to the surface on which it is applied being used to paint".

In fact, this definition is undoubtedly extremely basic and instructional, however, restricted to people who need to delve into the subject.

But, to better summarize, it would be enough to say that the paint is composed of pigments, resins, solvents and additives, without having to decompose the chemical composition of each substance in the paint.

Now, supposing that we are looking for a more in-depth clarification on ink, then, in this case, it is necessary to resort to the help of a decent painting almanac, because only then can we understand what the word ink really means.

Therefore, if we put the substance in the details, then we will have here, a mini-almanac of organic and inorganic compounds and not just a simple e-book with tips on painting.


Pigments are strong substances, finely partitioned, particles somewhere in the range of 0.05µm and 5µm, not unstable and insoluble (except for color) in the medium. Material used to advance a color hue, mist-like, and in consistency, robustness, and ink opposition.

Pigments can be:

• Organic and Natural;

Models: blue and green phthalocyanines, violet and red quinacridones.

• Inorganic and Artificial;

Models: titanium dioxide, iron oxides, calcined kaolin.


The resin, also known in the United States as strong particle fixing gum, becomes the principle responsible for the film's disposition. In engineering paints, tars can be arranged by the soluble used.

In water-based paints, the most used saps are plastic vinyl (also called polyvinylacetic acid derived from acetic acid - PVA) and acrylics, while in soluble natural paints, alkyd tars are used, also called manufactured polishes in the market.

The structure of these pitches is linked to the properties of the paints such as obstruction, fixation, adaptability and resistance, making the gum the main part of the paint.


Solvents, thinners or turpentine are used to break the resin (gum) and give sufficient thickness to the use of paints, solvents are items that need a reasonable decision for better use.

A decent dissolvable should have a low threshold, non-partisanship, substance reliability, high solvency, light or odorless odor, low toxicity, among others.

Solvents with this type of arrangement can, in addition to homogenizing the resin, add uniformity to the pigments, change the relief properties, allow the legitimate development of the film and impact the last ink release, such as gloss.


Additives are substances added that contain an immense amount of compounds, which when integrated into paints to small extents, normally below 5%, confers significant properties...

They give significant properties, for example:

• Dryers;

• Catalysts;

• Anti-fur;

• Thickeners;

• Anti-slip;

• Surfactants;

• Dispersants;

• Defoamers;

• Leveling;

• Biocides;

• Ultraviolet stabilizers.

For today, that's all.

Until the next article!

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