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The paper presents considerations on quality assurance for products such as preformed boxes, made out of thin cardboard, created through flexographic printing. The elements specific to the technological process are analysed, followed by the setting of the levels of product conceptualisation after the analysis of its functions and the defining characteristics of its optimal quality. In addition, the paper covers some of the procedures which are specific to the quality assurance of the flexographic printing procedures which were implemented in the typography where the case study for certifying the process in compliance with SR EN ISO 9001:2015 was carried out.

Training printing workers in the use of flexography requires extensive time, as they are expected to gain knowledge on-site, through hands-on practice, resulting in high costs for the employer. This paper addresses the issue by providing practical information up front. Applying this information correctly during the printing process leads to a quality product. The study was created to analyse the following aspects: problems in printing - nonconformities and defects; quality of the print - seen as a habit of working neatly and correctly; quality when working with die cuts; quality in the prepress process.

The printability tester is defined as a device for uniformly applying a reproducible amount of ink to a substrate under specified conditions using a motorized control of the ink transfer process specific function. This repeatable print operation characteristic may also facilitate the correlation of the actual printing condition set by the primary process parameters specified by printing process, substrate, ink, screening, printing order, etc. By extending the usage and functionality of the printability tester, printers have the possibility to use laboratory test prints as means of process control and correction at a fraction of cost and time.