PAPERmaking! Vol11 Nr2 2025

Eastern-European Journal of Enterprise Technologies ISSN-L 1729-3774; E-ISSN 1729-4061

1/1 ( 133 ) 2025

 ܤ  ܤއވކܥމܥދދތ  ގܥފތކܥތލތܤއܥތވމܥދދތ  ܤ  ދޏފކވމܥދވކވܥއތކފ ܼޏވލއܭލގދދއܥކއ

The intensive use of tissue products encourages manu- facturers to search for new technologies for their decora- tion and researchers to study the factors influencing the quality of finished products. Flexographic printing is used to decorate sanitary and hygienic products, which is effective for large print runs. Digital printing is recommended for producing tissue products with small print runs. Therefore, the object of this study was flexographic and digital ink-jet imprints. As a result of the research, it was found that in the range from 50 to 100 % of the printed control scale, the optical density of all CMYK colors on a flexographic imprint is twice as high as in digital printing. The optical density of digital imprints increases in proportion to the color saturation. The optimal amount of luminophore that provides the luminescence effect of printed images on flexographic imprints has been determined. In the process of print- ing, tissue paper is exposed to temperature conditions. Thermogravimetric studies of printing inks with lumino- phore additives and corresponding imprints were conducted. Initial thermo-oxidative processes in the ink composition begin to develop at temperatures above 187 °C. A slight loss of mass (1.1 %) of the composition is observed in the range of 187–236 °C, which is accompanied by a deviation of the DTA channel into the region of exothermic effects due to the thermal oxidation of the luminophore. The influence of tissue products’ structure and print- ing area on punching resistance has been shown. Using the Kendall concordance coefficient, the degree of consis- tency of experts’ opinions regarding the priority of factors influencing the quality of tissue products was determined Keywords: sanitary and hygienic products, flexogra- phic and digital printing, luminescent impurities, quality of imprints

DEFINING FEATURES OF DECORATING SANITARY-HYGIENIC PRODUCTS BY THE METHOD OF FLEXOGRAPHIC AND DIGITAL PRINTING Svitlana Havenko Doctor of Technical Sciences, Professor, Head of Department Department of Printing Technologies and Packaging* Valentyna Dovhanych Corresponding author PhD Student Department of Printing Technologies and Packaging*

Е-mail: dovganich.valya@ukr.net Viktoria Kochubei

PhD, Associate Professor Department of Physical,

Analytical and General Chemistry* *Lviv Polytechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

Received 29.10.2024 Received in revised form 20.12.2024

How to Cite: Havenko, S., Dovhanych, V., Kochubei, V. (2025). Defining features of de- corating sanitary-hygienic products by the method of flexographic and digital printing. Eastern-European Journal of Enterprise Technologies, 1 (1 (133)), 62–72. https://doi.org/10.15587/1729-4061.2025.320495

Accepted 06.01.2025 Published 05.02.2025

ĆăČĎĂăđčāĎčĒĔČăđďĔēĒĄĎđĖÿđĂĆćąĆăđđăĐĔćđăČăčēĒ ĄĎđēĆăĂăāĎđÿēćĎčĎĄēćĒĒĔăďđĎĂĔāēĒ ܥ ĆăđăĄĎđă ܡ ĎčăāÿčĎĄēăč ĒăăĒĔāĆĂăāĎđÿēćĎčĒÿĒăČĀĎĒĒćčą ܡ ďđćčēćčą ܡ āĔēēćčą ܡ ďăđĄĎđÿ - ēćĎč ܡ ăēā ܥ ĎččÿďĊćčĒ ܥ ĆăĔĒĔÿċĖÿĘćĒēĎÿďďċĘÿčćČÿąăĎčďÿ - ďăđďđĎĂĔāēĒĀĘĄċăėĎąđÿďĆćā ܡ ĒāđăăčĎđĂćąćēÿċܱ ćčĊĉăēܲ ďđćčēćčą ܡ  ēĎďđĎĕćĂăčĎēĎčċĘĂăāĎđÿēćĕăĀĔēÿċĒĎÿĂĕăđēćĒć蹥ĔčāēćĎčĒ ܡ ćč ďÿđēćāĔċÿđ ܡ ēĆăďċÿāăČăčēĎĄāĎČďÿčĘċĎąĎĒÿčĂăČĀċăČĒ ܥ Ćă ČĎĒēĖćĂăĒďđăÿĂćčēĆăĖĎđċĂćĒēĆăĄċăėĎąđÿďĆćāēăāĆčćĐĔăĎĄ ďđćčēćčąĎčēćĒĒĔăďđĎĂĔāēĒ ܥ ĆăĒďăăĂĎĄĄċăėĎąđÿďĆćāďđćčēćčą ĎčēćĒĒĔăďđĎĂĔāēĒćĒČĎđăēĆÿč ކކތ Č ܭ Čćč ܡ ĖĆćāĆāÿčċăÿĂēĎ ćčāđăÿĒăĂĄĎđČÿēćĎčĎĄďÿďăđĂĔĒē ܡ ĖĆćāĆČĔĒēĀăĂăÿċēĖćēĆ ܥ  ĔāĆČÿāĆćčăĒĔĒăÿĊčćĄăĒĘĒēăČĎĄēĆăēĘďă ܡ ÿĒďă - āćÿċĖÿēăđܼ ĀÿĒăĂďÿćčēĄăăĂćčąĒĘĒēăČ ܡ ĒĔāĆÿĒēĆă ܥކކވ đćčēăĂ ćČÿąăĒ āÿč Āă ĕÿđćĎĔĒ ܤ  ďăđĒĎčÿċćęăĂ ܡ  ēĆăČÿēćā ܡ  ĎđčÿČăčēÿċ ܡ  ăēā ܡܥ  ĖĆćāĆ āÿč āĎĕăđ ēĆă ăčēćđă ÿđăÿ ĎĄ ēĆă ďđĎĂĔāē Ďđ ĎčċĘ ćēĒ ďÿđē ܥ Ď ďđćčē ćČÿąăĒ Ďč ēćĒĒĔă ďđĎĂĔāēĒ ܡ  ĒďăāćÿċĖÿēăđܼ ĀÿĒăĂďÿćčēĒÿđăĔĒăĂēĆÿēČăăēāăđēćĄćāÿēćĎčđă - ĐĔćđăČăčēĒܳ ܥ ܴމ ĆăÿĔēĆĎđĒăČďĆÿĒćęăĒĔāĆāĆÿđÿāēăđćĒēćāĒĎĄ ēćĒĒĔăďđĎĂĔāēĒÿĒēĆăčĔČĀăđĎĄċÿĘăđĒ ܡ ĒĔđĄÿāăēĘďă ܡ ďđăĒăčāă ĎĄďăđĄĎđÿēćĎčĒ ܡ ăČĀĎĒĒćčą ܡ  ĄċÿĕĎđćčą ܡ ăēā ܥ  ĔāĆ ďđĎďăđēćăĒ ĎĄ ēćĒĒĔăďÿďăđÿđăćČďĎđēÿčēĄĎđĎĀēÿćčćčąĆćąĆܼ ĐĔÿċćēĘďđćčēăĂ ćČÿąăĒ ܡ ĀĔēēĆăĘĖăđăċăĄēĎĔēĎĄēĆăĒēĔĂĘćčēĆćĒĖĎđĊ ܥ

1. Introduction čđăāăčēĘăÿđĒ ܡ ēćĒĒĔăďđĎĂĔāēĒĆÿĕăĀăāĎČăćčāđăÿĒćčąċĘ ďĎďĔċÿđÿċċĎĕăđēĆăĖĎđċĂ ܥ ĔđđăčēċĘ ܡ ćēćĒĂ楥ćāĔċēēĎćČÿąćčă ÿ ďăđĒĎč ĖĆĎ ĖĎĔċĂ čĎē ĔĒă ďÿďăđ čÿďĊćčĒ ܡ  ēĎĖăċĒ ܡ  ēÿĀċă - āċĎēĆĒ ܡ ăēā ܥ ćčăĕăđĘĂÿĘċćĄă ܥ ēÿēćĒēćāĒĒďăÿĊăċĎĐĔăčēċĘÿĀĎĔē ēĆćĒ ܤ ćčēĆă ܡ ēĆăāĎčĒĔČďēćĎčĎĄďÿďăđčÿďĊćčĒÿčĂēĎćċăē ďÿďăđćĒ ކފ ࠘ ܥ čÿĕăđÿąă ܡ ćčēĆăĖĎđċĂ ܡ āĎčĒĔČďēćĎčĎĄďÿ - ďăđčÿďĊćčĒÿčĂēĎćċăēďÿďăđÿāāĎĔčēĒĄĎđ ވދ ࠘ ܡ ēĎĖăċĒ݁  ވއ ࠘ ܡ  čÿďĊćčĒ ÿčĂ ĆÿčĂĊăđāĆćăĄĒ݁  އމ ࠘ ܳ ܥ ܴއ  čÿċĘĒēĒ ĄĎđăāÿĒē ąđĎĖēĆćčĂăČÿčĂĄĎđēćĒĒĔăďđĎĂĔāēĒĔčēćċ ܤދމކވ ćčăĒēăđč ĔđĎďă݁ ĔďēĎ ކވ ݁ގއ ĊąďăđďăđĒĎčܱ ދܥއ ࠘ ďăđĘăÿđܲ ܡ ÿĒēăđč ĔđĎďăĀĘ މܥމ ࠘ ܡ Ććčÿ݁ ĔďēĎ ދܥފ ࠘ ܡ ĎĔēĆČăđćāÿ݁ ÿĀĎĔē ދވ ݁ފވ Ċą ďăđ ďăđĒĎč Ďčă ďăđĒĎčܱ Ĕď ēĎ މ ࠘  ďăđĘăÿđܲ ܡ ĎēĆăđ ĒćÿčāĎĔčēđćăĒ݁  މܥމ ࠘ ďăđĘăÿđܳ ܥ ܴވ Ćă ĐĔÿċćēĘ ĎĄ ēćĒĒĔă ďđĎĂĔāēĒ ĂăďăčĂĒ Ďč ēĆă āĆĎćāă ĎĄ ēăāĆčĎċĎąĘÿčĂďđĎĂĔāēćĎčēăāĆčćĐĔăĒÿēÿċċĒēÿąăĒ ܡ ÿĒĖăċċÿĒ ĒēĎđÿąăāĎčĂćēćĎčĒ ܥ ćĒĒĔăďÿďăđćĒČÿĂăĄđĎČāăċċĔċĎĒăďĔċď ÿčĂĔĒĔÿċċĘĆÿĒÿāđăďăĒēđĔāēĔđă ܥ ĆćĒĒďăāćÿċēĘďăĎĄďÿďăđ ćĒ ÿĀĒĎđĀăčē ܡ  ċćčēܼ Ąđăă ܡ  ÿčĂ ČăăēĒ Ēďăāćÿċ đĔďēĔđă đăĒćĒēÿčāă đăĐĔćđăČăčēĒ ܥ ĔāĆďÿďăđāÿčĀăĂćĕćĂăĂćčēĎēĖĎČÿćčāÿēă - ąĎđćăĒ ܤ ēĎćċăēďÿďăđÿčĂēÿĀċăĂăāĎđÿēćĎčĒ ܥ

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