AN ASSESSMENT OF PRODUCTION, OPTIMIZATION AND APPLICATION OF PRINTING INK FROM WASTE CARBON SOURCES AMONG PRINTING ENTERPRISE
INTRODUCTION
The inks are extremely versatile and can be used on virtually any surface, regardless of its texture, size or shape. They can be used in the colouring of paper, plastics, metal, glass and textiles. Printing inks, unlike paints and varnish coatings, are applied to the surface in the form of a very thin layer, which, depending on the printing process, may have a thickness of 2 to 30 μm. The visual characteristics of the ink depend on three main factors, namely: its colour, transparency and gloss. In addition, several features that are interrelated with each other, influence the colour of the ink. The colour depends also on the intensity and saturation, and its purity informs us how dark or light the ink will be.
Of course, the chemical structure of a dye has a key impact on its shade, particle size or the ability to apply a given ink. It is the use of different types of resins, oils and solvents that affects the hue or purity of a given dye. Sometimes, even some additives (e.g. for dispersion) can cause changes in the colour of the paint. In addition to the structure of the ink itself, the proportions of its individual components are also very important. In practice, the composition of the printing ink and its physical appearance depend mainly on the printing technique.
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