The article gives an overview of the properties of offset printing inks which are
leading on the market of printing services. The explanation for this is the availability of a wide
range of automatic printing presses of the leading manufacturers and the use of various
printing materials and printing inks depending on the intended use of the product. The
predominant advantages of this printing method include high graphic accuracy in the
reproduction of small line breaks and colour reproduction. During printing, the quality of the
reproduction depends on many factors, including the properties and characteristics of the
printing inks used, which differ from each other in terms of composition and the quantity of the
basic components. The composition and percentage of the basic components of inks differ
depending on the printing method, type of printing equipment, dampening system, optical
characteristics, fixation method and characteristics of the print material. For printing on
absorbent substrates, less viscous inks should be used in comparison to printing on non-absorbent
substrates. The higher the viscosity, the lower the tendency of the ink to spread over the print
substrate, the higher the print resolution and the lower the dot gain. It follows from this that
before selecting and using an ink it is necessary to know the type of printed matter and its quality,
colour tone, brightness, colour saturation, etc. In tri-colour, printing it is important to ensure
sufficient transparency of the ink; otherwise, the desired colours cannot be achieved in the print.
The tack of the inks must be adjusted because they will be applied one after the other; the
viscosity of the ink must also be adjusted to the characteristics of the print substrate in order to
compensate for dot gain and to ensure better print quality. Conclusions are drawn on the
influence of the optical and printing properties of the inks on the colour reproduction of the print.
The article gives an overview of the properties of offset printing inks which are
leading on the market of printing services. The explanation for this is the availability of a wide
range of automatic printing presses of the leading manufacturers and the use of various
printing materials and printing inks depending on the intended use of the product. The
predominant advantages of this printing method include high graphic accuracy in the
reproduction of small line breaks and colour reproduction. During printing, the quality of the
reproduction depends on many factors, including the properties and characteristics of the
printing inks used, which differ from each other in terms of composition and the quantity of the
basic components. The composition and percentage of the basic components of inks differ
depending on the printing method, type of printing equipment, dampening system, optical
characteristics, fixation method and characteristics of the print material. For printing on
absorbent substrates, less viscous inks should be used in comparison to printing on non-absorbent
substrates. The higher the viscosity, the lower the tendency of the ink to spread over the print
substrate, the higher the print resolution and the lower the dot gain. It follows from this that
before selecting and using an ink it is necessary to know the type of printed matter and its quality,
colour tone, brightness, colour saturation, etc. In tri-colour, printing it is important to ensure
sufficient transparency of the ink; otherwise, the desired colours cannot be achieved in the print.
The tack of the inks must be adjusted because they will be applied one after the other; the
viscosity of the ink must also be adjusted to the characteristics of the print substrate in order to
compensate for dot gain and to ensure better print quality. Conclusions are drawn on the
influence of the optical and printing properties of the inks on the colour reproduction of the print.
| № | Author name | position | Name of organisation |
|---|---|---|---|
| 1 | Babakhanova H.A. | teacher | Tashkent Institute of Textile and Light Industry |
| 2 | Gromyko I.G. | teacher | Belarusian state technological university |
| 3 | Sadriddinova N.J. | teacher | Tashkent Institute of Textile and Light Industry |
| 4 | Saodatov A.A. | teacher | , Namangan Engineering and Technology Institute |
| № | Name of reference |
|---|---|
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| 2 | А.I. Virchenko., I.I. Kolontai. Printing equipment: textbook for students in printing equipment and information processing systems. “Minsk: Belarusian State Technical University”, 2004. 234. |
| 3 | A.N. Raskin., I.V. Romeykov., N.D. Biryukova. “Technology of printing processes”, 1989. 432. |
| 4 | P.E. Sulim. “Equipment and fundamentals of pre-press and printing processes. Textbook”, 2014. 148. |
| 5 | V.I. Shtolyakov. Heydelberg printing systems. Offset printing machines. “Moscow State University of printing arts”, 1999. |
| 6 | В.I. Shtolyakov., V.N. Rumyantsev. “Printing equipment: textbook”, 2011. 519. |
| 7 | V.I. Shtolyakov., S.P. Vartanyan., A.F. Fedoseev., A.A. Perova. Sheetfed offset printing machines KBA: textbook. “Moscow state university of printing arts”, 2007. 140. |
| 8 | В.P. Mitrofanov. “Printing equipment: textbook”, 1999. 443. |
| 9 | Kh.A. Babaxanova., O.D. Xaknazarova., Z.K. Galimova., Sh.B. Tashmuxamedova., I.G. Gromiko. Paper porosity studies using the sorption method. “Technical science and innovation”, 2021. 38. |
| 10 | Kh.A. Babaxanova., Z.K. Galimova., M.M. Abdunazarov., I.I. Ismailov., M.G. Mikhaleva. Predicting the quality of flexographic printing with regard to the properties of polyethylene film. “Technical science and innovation”, 2021. 38. |
| 11 | Nelson Eldred. What a printer should know about inks. “Moscow: Print Media Center”, 2005. 225. |
| 12 | D.M. Medjak Fundamentals of optimisation of printing process parameters based on the structural method of ink balance. Proceedings of BGTU. “Publishing business and polygraphy”, 2005. |
| 13 | E.F. Belenkiy., I.V. Raskin. “Chemistry and technology of pigments”, 1960 |
| 14 | GOST 25117-82 Printing inks. Method for determination of hiding power |
| 15 | GOST 7086-75 Paints for printing. Method for determination of transparency |
| 16 | S.A. Sheludko., N.A. Nechiporenko. Offset printing on metalized substrates without heat drying. “Polygraphy”, 2012. 40. |
| 17 | H.A. Nechiporenko., S.A. Sheludko., A.V. Berdovschikova. Technological aspects of offset printing on metalized substrates without heat drying. “Technology and liquid printing”, 2012. 18 |
| 18 | A.V. Berdovschikova. Normalization of the technological process of printing on metallized substrates by the method of sheet-fed offset printing without heat drying. “Moscow: Moscow state university of printing arts”, 2014. 24. |