THE EFFECT OF THE HETEROGENEOUS STRUCTURE OF THE SURFACE OF PAPER CONTAINING CALCIUM CARBONATE ON THE QUALITY OF PRINTED PRODUCTS

UDC 676.017

Gromyko Irina Grigor’yevna – PhD (Engineering), Associate Professor, Head of the Department of Printing Production. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: gromyko@belstu.by

Kudryashova Alina Nikolayevna – Master’s degree student, the Department of Printing Production. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: kudryashova@belstu.by

Babakhanova Khalima Abishevna – DSc (Engineering), Professor, the Department of Technology of Printing and Packaging Processes. Tashkent Institute of Textile and Light Industry (5, Shokhzhakhon str., 100100, Tashkent, Republic of Uzbekistan). E-mail: halima300@inbox.ru

Khaknazarova Oydin Dilmurodovna – DSc of Philosophy (Engineering), the Department of Technology of Printing and Packaging Processes. Tashkent Institute of Textile and Light Industry (5, Shokhzhakhon str., 100100, Tashkent, Republic of Uzbekistan). E-mail: nigin-umid@mail.ru

Babakhanova Madina Avazovna – DSc of Philosophy in (Engineering), SUE “Fan va tarakkiyot” (7a, Mirzo Golib str., 100174, Tashkent, Republic of Uzbekistan). E-mail: madina89@mail.ru

DOI: https://doi.org/ 10.52065/2520-6729-2024-285-2.

Key words: roughness, microstructure, fractal dimension, optical density, tone enhancement.

For citation: Gromyko I. G., Kudryashova A. N., Babakhanova Kh. A., Khaknazarova O. D., Babakhanova М. A. The effect of the heterogeneous structure of the surface of paper containing calcium carbonate on the quality of printed products. Proceedings of BSTU, issue 4, Print- and Mediatechnologies, 2024, no. 2 (285), pp. 13–20 (In Russian). DOI: 10.52065/2520-6729-2024-285-2.

Abstract

The article examines the structure of the surface of a paper containing calcium carbonate. The heterogeneous structure of the samples under consideration was assessed using atomic force microscopy and profilometry, which allow measurements to be carried out with high accuracy and a wide range of sizes. For this purpose, profilograms were obtained, the values of the arithmetic mean deviation of the profile, the height of the irregularities at 10 points and the highest profile height were determined. To ensure high graphic accuracy during the printing process, it is necessary to use paper whose roughness is known or determined in advance. The atomic force microscope made it possible to obtain a direct image of the micro-geometry of the surface in 3D scale for three frames – 750, 1500 and 3500 nm. The calculated value of the fractal dimension index takes into account the contribution of the stochastic structure of the sealed surface to the process of paint transfer. Attention is paid to the heterogeneity of the distribution of the main components of the sealed material. Considering the printing properties of paper, it is important to take into account the characteristics of the ink, since the result of the printing process depends on the result of their interaction. The evaluation of the obtained prints also included the construction of gradation curves and the calculation of the magnitude of the tone gain, which allows us to analyze the nature of the distribution of gradations within the tone range and ensure the correct selection of the operating parameters of the printing process.

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References

  1. Leont’yev V. N. Metody i sredstva sovershenstvovaniya pechatnykh svoystv bumag v sisteme “bumaga – kraska – ottisk” [Methods and means of improving the printing properties of papers in the “paper – ink – impression system”]. St. Petersburg, GOUVPO SPbGURP Publ., 2009. 170 p. (In Russian).
  2. Raskin A. N., Romeikov I. V., Biryukova N. D., Muratov Yu. A., Efremova A. N. Tekhnologiya pechatnykh protsessov [Technology of printing processes]. Moscow, Kniga Publ., 1989. 301 p. (In Russian).
  3. Gromyko I. G., Kudryashova A. N., Prokhorchik S. A., Babakhanova Kh. A., Galimova Z. K. Metods of atomic force microscopy and profilometry in the study of fractal heterogeneity sealed surfaces. Trudy BGTU [Proceedings of BSTU], issue 4, Print- and Mediatechnologies, 2024, no. 1 (279), pp. 5–12 DOI: 10.52065/2520-6729-2024-279-1 (In Russian).
  4. Babakhanova Kh. A., Abdunazarov M. M., Galimova Z. K., Gromyko I. G. Analysis of the dependence of product quality on the surface properties of paper and printing parameters. Trudy BGTU [Proceedings of BSTU], issue 4, Print- and Mediatechnologies, 2022, no. 1 (255), pp. 5–13 (In Russian).
  5. Babakhanova Kh. A., Galimova Z. K., Abdunazarov M. M., Ismoilov I. I. Investigation of the roughness of recycled paper by atomic force microscopy. Nauchno-tekhnicheskiy vestnik informatsionnykh tekhnologiy, mekhaniki i optiki [Scientific and Technical Bulletin of Information Technologies, Mechanics and Optics], 2020, vol. 20, no. 5, pp. 661–666 (In Russian).
  6. Zhukov M. V. Control of the structure of various types of paper by atomic force microscopy. Scientific and technical bulletin of information technologies, mechanics and optics. Nauchnotekhnicheskiy vestnik informatsionnykh tekhnologiy, mekhaniki i optiki [Scientific and Technical Bulletin of Information Technologies, Mechanics and Optics], 2014, no. 1 (89), pp. 44–49 DOI: 10.1016/j.snb.2011.09.086 (In Russian).
  7. Kirsankin A. A., Mikhaleva M. G., Nikolsky S. N., Musokhranova A. V., Stovbun S. V. Direct method for controlling the surface quality of coated types of paper. Khimiya rastitel’nogo syr’ya [Chemistry of plant raw materials], 2016, no. 4, pp. 159–163 (In Russian).
  8. Galimova Z. K., Babakhanova Kh. A., Abdunazarov M. M., Ismoilov I. I. Direct method of paper surface quality inspection with the addition of secondary raw materials. Textile Journal of Uzbekistan. 2020, no. 3, pp. 77–82. DOI: 10.14258/jcprm.2016041415.
  9. Mandelbrot B. Fraktal’naya geometriya prirody [Fractal geometry of nature]. Moscow, Institut of komp’yuternykh issledovaniy Publ., 2002. 656 p. (In Russian).
  10. Kulak M. I. Fraktal’naya mekhanika materialov [Fractal mechanics of materials]. Minsk, Vysheyshaya shkola Publ., 2002. 304 p. (In Russian).
  11. Kulak M. I., Nichiporovich S. A., Medyak D. M. Metody teorii fraktalov v tekhnologicheskoy mekhanike i protsessakh upravleniya: poligraficheskiye materialy i protsessy [Methods of fractal theory in technological mechanics and control processes: polygraphic materials and processes]. Minsk, Belaruskaya navuka Publ., 2007. 419 p. (In Russian).
  12. Gromyko I. G., Kudryashova A. N. Investigation of the effect of fractal inhomogeneity of microstructure on the paint capacity of the sealed surface of materials with different absorbency. Trudy BGTU [Proceedings of BSTU], issue 4, Print- and Mediatechnologies, 2023, no. 2 (273), pp. 5–11. DOI: 10.52065/2520-6729-2023-273-2-1 (In Russian).
  13. Gromyko I. G. The relationship between the heterogeneous structure of the sealed surface and the information characteristics of the prints. Trudy BGTU [Proceedings of BSTU], issue 4, Print- and Mediatechnologies, 2022, no. 1 (255), pp. 22–28 (In Russian).
  14. Gromyko I. G. The effect of the fractal structure of label types of paper and cardboard on the process of paint transfer. Trudy BGTU [Proceeding of BSTU], series IX, Publishing and Ptinting, 2009, issue XVII, pp. 21–24 (In Russian).
  15. Moginov R. G., Dmitriev Ya. V. Tekhnologiya fleksografskoy pechati. Teoriya, praktika i raschet. [Flexographic printing technology. Theory, practice and calculation]. Moscow, INFRA-M Publ., 2020. 355 p. (In Russian).

29.07.2024