Investigation on Recycling of Waste Beer Label Paper
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Date
2020-02
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Addis Ababa University
Abstract
The solid wastes generated from beer industries during beer packaging in which each bottle has
to be labeled with a paper then turned to wastes after usage.
In this study repulping of waste beer label paper was carried out by repulping Henikenās waste
beer label and blended it with used A4 sized paper found in AAiT. The study was conducted
under different conditions with the influence of mixing ratio (0, 25 and 50 %), drying
temperature (100,110 and 120
0
C) and drying time (60, 90 and 120 min) on repulp yield
properties. Results indicated that mixing ratio and drying time had a significant influence on
repulp yield. Likewise the optimum result with respect to yield was obtained by 50% mixing
ratio, 120
0
C drying temperature and 120 min drying time.
At the optimum operating conditions the physical tests of hand sheets made from repulping of
mixed beer label paper was carried out at Ethiopian Pulp and Paper Factory resulting 66.3 Nm/g,
6.26 mNm
2
/g and 5.421 kN/g tensile index , tear index and burst index respectively..
In general, results based on morphological and repuling analysis indicated that wasted beer label
fibers are promising fibrous raw material for the paper production and have tremendous results
for environmental challenges in the brewing industries.
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Keywords
beer label paper, recycling of paper, repulping, pulp, paper production