Abstract
Frozen food is popular with more and more customers nowadays, it's consumption is growing rapidly.The packaging of the frozen food usually uses paperboard. Frozen food may suffer temperature fluctuations in the process of storage, transportation and sales, which cause the paperboard sop up , the strength come down and packaging carton dilapidation. Paperboard should have moisture-proof, waterproof and high strength properties in order to ensure that the packaging carton have sufficient strength. In this paper, the methods and researches of obtaining moisture-proof and waterproof paperboard based on paperboard surface treatment and pulp preparation were introduced.
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