Effect of Aluminum Free Lining Paper Composite Coating on Barrier Properties

WU Chunmei, WENG Congze, LI Qian, LU Zhongxue, SHU Fangyu, HUANG Chaozhang, ZHANG Guoqiang

Packaging Engineering ›› 2024 ›› Issue (5) : 118-125.

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Packaging Engineering ›› 2024 ›› Issue (5) : 118-125. DOI: 10.19554/j.cnki.1001-3563.2024.05.014

Effect of Aluminum Free Lining Paper Composite Coating on Barrier Properties

  • WU Chunmei1, WENG Congze1, LI Qian1, LU Zhongxue1, SHU Fangyu1, HUANG Chaozhang2, ZHANG Guoqiang2
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Abstract

The work aims to study the combination of different types of inks and coating layers used in aluminum free lining paper, to obtain samples with excellent barrier properties and promote the production and application of aluminum free lining paper. The surface microstructure, water vapor permeability and air permeability of lining paper were tested by scanning electron microscope, water vapor permeability tester and air permeability tester. The barrier properties of lining base paper from different sources and single-layer coated and multi-layer coated aluminum free lining paper were investigated and compared with those of other types of lining paper. Coating multi-layer ink on the basis of base paper could significantly improve the barrier properties of the product. The maximum water vapor permeability of single-layer coated sample was reduced by 59.80%, and the maximum permeability was reduced by 98.37%. After three-layer coating was adopted, the water vapor permeability tended to be stable, with a decrease of 79.70%. With the increase of the number of coating layers, the effect improvement of air resistance was not obvious. Aluminium free lining paper with excellent barrier properties can be obtained by coating multi-layer ink on paper, and its barrier properties are similar to those of conventional direct plating lining paper.

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WU Chunmei, WENG Congze, LI Qian, LU Zhongxue, SHU Fangyu, HUANG Chaozhang, ZHANG Guoqiang. Effect of Aluminum Free Lining Paper Composite Coating on Barrier Properties[J]. Packaging Engineering. 2024(5): 118-125 https://doi.org/10.19554/j.cnki.1001-3563.2024.05.014
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