European database for cartonboard and carton production, 2023
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17<br />
System boundaries <strong>for</strong> <strong>carton</strong> <strong>production</strong><br />
The gate-to-gate inventory <strong>for</strong> conversion of <strong><strong>carton</strong>board</strong> into <strong>carton</strong>s is presented in<br />
Table 2 according to the following declared unit:<br />
one tonne (1000 kg) of printed, cut, creased, folded <strong>and</strong> glued <strong>carton</strong>s<br />
The system boundaries of the life cycle inventory <strong>for</strong> conversion of <strong><strong>carton</strong>board</strong> into<br />
<strong>carton</strong> include all activities associated with processing <strong><strong>carton</strong>board</strong> into <strong>carton</strong>s. Thus,<br />
included in the inventory are all the inputs <strong>and</strong> outputs (from/to the technosphere <strong>and</strong><br />
from/to nature) associated with:<br />
• Printing<br />
• Cutting <strong>and</strong> Creasing<br />
• Folding<br />
• Gluing<br />
• Supporting activities used in conversion process, e.g., onsite energy generation, such as<br />
space heating <strong>for</strong> the factory.<br />
Figure 4 summarises the system boundaries.<br />
© RISE Research Institutes of Sweden
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