Minimizing setups and waste when printing labels of consumer goods

Herbert Meyr () and Mirko Kiel ()
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Herbert Meyr: University of Hohenheim
Mirko Kiel: University of Hohenheim

OR Spectrum: Quantitative Approaches in Management, 2022, vol. 44, issue 3, No 3, 733-761

Abstract: Abstract A real-world planning problem of a printing company is presented where different sorts of a consumer goods’ label are printed on a roll of paper with sufficient length. The printer utilizes a printing plate to always print several labels of same size and shape (but possibly different imprint) in parallel on adjacent lanes of the paper. It can be decided which sort is printed on which (lane of a) plate and how long the printer runs using a single plate. A sort can be assigned to several lanes of the same plate, but not to several plates. Designing a plate and installing it on the printer incurs fixed setup costs. If more labels are produced than actually needed, each surplus label is assumed to be “scrap”. Since demand for the different sorts may be heterogeneous and since the number of sorts is usually much higher than the number of lanes, the problem is to build “printing blocks”, i.e., to decide how many and which plates to design and how long to run the printer with a certain plate so that customer demand is satisfied with minimum costs for setups and scrap. This industrial application is modeled as an extension of a so-called job splitting problem which is solved exactly and by various decomposition heuristics, partly basing on dynamic programming. Numerical tests compare both approaches with further straightforward heuristics and demonstrate the benefits of decomposition and dynamic programming for large problem instances.

Keywords: Cutting stock; Scheduling; Lot-sizing; Real-world production process; Mixed integer programming (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s00291-021-00661-w

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