Study of marking quality of pharmaceutical packaging by digital printing

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Котмальова О. Г., Kulik L. Y., Лабецька М. Т., Ryvak P. M. № 2 (67) 209-215 Image Image

Marking of the packaging of medical drugs is one of the most important tools of the pharmaceutical industry, which not only advertises the medicine, but also provides the necessary information about the specific drug, such as instructions for use, its storage conditions, dosage, active substances, the address of production facilities, etc. Marking can be done in different sizes, shapes and materials, for example, using self-adhesive labels.

The main properties of glossy self-adhesive paper are high contrast and brightness of colours, transmission of a wide palette of shades. The glossy surface has increased density and the presence of a special protective layer that prevents the ink from fading and washing off the surface. However, image detailing on imprints with a glossy surface is significantly worse than with a matte one. An imprint on self-adhesive paper with a matte surface will have a longer service life without changing its original appearance: without scratches and fingerprints, but the lack of a protective layer leads to gradual fading of colours. These factors must be taken into account when choosing a material for the manufacture of labelling products.

Adherence to high quality indicators is a key point in the production of self-adhesive labels, since the marking applied to them must guarantee the performance of its main functions throughout the life cycle of pharmaceutical preparations. In the work, experimental studies of tone reproduction quality of digital imprints are carried out by comparing the gradation curves of the toner image obtained on self-adhesive papers with a matte and glossy surface. The analysis of research results shows that for more detailed printing, it is better to choose matte self-adhesive materials, and to obtain rich colours and accurate transmission of halftones, it is recommended to use papers with a glossy surface.

Keywords: marking, pharmaceutical packaging, medicines, self-adhesive labels, imprint, quality.

doi: 10.32403/1998-6912-2023-2-67-209-215

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