Original scientific paper Ljevak I. et al.
The aesthetic aspect of product packaging is a well-known factor in attracting consumers’ attention. One of the most common ways in achieving the aesthetic appearance of the packaging is applying graphic design principles. The purpose of the study was to explore how people perceive the attractiveness of tea packaging with different levels of graphic design principles applied. The graphic design principles applied on the packaging were: contrast, dominance, alignment, symmetry, consistency and colour harmony. The manipulation of these principles resulted in three different packaging samples that were tested: aesthetic packaging, partially-aesthetic packaging and non-aesthetic packaging. The participants’ tasks were to rate the attractiveness of each of the packaging samples and to select the one which they would like to buy. The statistical analysis showed that the results of both tests (rating and choice task) were consistent, indicating that the aesthetic packaging was appreciated the most, followed by the partially-aesthetic packaging and the non-aesthetic packaging. These results were the same even when taking into account whether the beauty of the packaging was important to the participants or not. The findings support the idea of using graphic design principles in packaging design whenever applicable.
Rectangles are the most common packaging shapes. Their stability under compression can vary according to different types of paperboard as well as panels ratios. Rectangular shapes have advantages in transportation and production but are not the only shapes that paperboard packaging has to offer. This paper investigates seven packaging shapes with different cross-sections while keeping the same height and amount of material used. The tested shapes were made with two types of paperboard (with recycled fibre and virgin pulp) and different grammage. The testing was conducted using a modified Crush Test (Lorentzen & Wettre Crush Tester). The results showed that cylinder shape has the most compression resistance while triangular prism and rectangular prism (1:4 panel ratio) the least. Testing rectangles with different panel ratios together with the results of other shapes led to the conclusion that compression resistance mainly depends on the size of the panel. If a shape has larger (less number of) panels it has less resistance to vertical pressure (stackability).
Output devices in print production can be characterized by different characterization methods. One commonly used method of color device characterization is least squares fitting. In essence, the least squares fitting is used to determine the coefficients of a predetermined polynomial, such that the sum of squared differences between the values predicted by the model and the empirical data is minimal. The choice of the polynomial order and the cross product terms which best describe the behavior of a certain device is not obvious. This paper is a part of a larger study which investigates the criteria in the measurement data which can be used for optimal model selection. The part of the study covered in this paper addresses the data over fitting problem. It is investigated by comparing the performance of models of different polynomial orders on two different domains.
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