Impact of material moisture content on the high-speed paper cup manufacturing process
Tamang, Resham (2025)
Diplomityö
2025
School of Energy Systems, Konetekniikka
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2025031718172
https://urn.fi/URN:NBN:fi-fe2025031718172
Tiivistelmä
The main goal of this thesis is to understand the impact of different moisture content levels of the paperboard on the high-speed paper cup manufacturing process. This thesis consists of a literature review on the paper cup forming process, storing conditions for the materials, paper cup materials and manufacturing machines, followed by an experimental part of two cup manufacturing trial runs and different paper cup analysis methods were implemented.
In the experimental stage of the thesis, paper cups were manufactured from paperboard blanks exposed to three different conditions of relative humidity and temperature. The main goal for running the experiment was to manufacture the paper cups from the conditioned paperboard using different sealing parameters and manufacturing process runs smoothly. The cups obtained from the experiments were used to test different analysis methods. For nearly all the manufactured paper cups from different conditioned paperboard resulted in the good cups.
Most of the analysis methods were working successfully, although some felt quite challenging. Compression testing for the cups was very useful methods for understanding the material behaviour and soap water testing method explained the importance of heat in the sealing process.
In the experimental stage of the thesis, paper cups were manufactured from paperboard blanks exposed to three different conditions of relative humidity and temperature. The main goal for running the experiment was to manufacture the paper cups from the conditioned paperboard using different sealing parameters and manufacturing process runs smoothly. The cups obtained from the experiments were used to test different analysis methods. For nearly all the manufactured paper cups from different conditioned paperboard resulted in the good cups.
Most of the analysis methods were working successfully, although some felt quite challenging. Compression testing for the cups was very useful methods for understanding the material behaviour and soap water testing method explained the importance of heat in the sealing process.