Optical Properties and Color in Packaging Industry

Document Type : Compilation

Authors

1 Department of Wood and Paper Sciences, PhD, Pulp and Paper Technology, Lecturer, Engineering (Technical and Vocational) Faculty of Sowmeeh Sara

2 Department of pulp and paper industry, PhD, Wood and Paper Industry, Associate Professor, Gorgan University of Agricultural Sciences and Natural Resources

Abstract

Majority of materials employed for food packaging are non-biodegradable materials which do not meet increasing demands in environmental protection. Thus, several biopolymers have been exploited to develop biodegradable food packaging materials. In this paper, we investigate the types of biopolymer, printing inks and optical properties of  papers. Barrier properties depend heavily on the oxygen penetration and moisture content of the packaging material.Enhanced protection of existing materials against weather conditions can be achieved by application of printed coatings. To improve barrier performance of packaging materials, new inks were investigated. Determining optical properties in packaging materials contributes to quality control and saving resources. The optical properties of paper are sometimes more critical for the sale of paper than the physical and mechanical properties. Optical properties of the packaging paper include color, brightness, opacity and gloss. Improving the color and appearance of the packaging will help to enhance the quality of packaging materials. Performing standard tests of color and brightness enhance the quality of printing and packaging as well as the export of goods.

Keywords

References

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Packaging Science and Art
Volume 9, Issue 33 - Serial Number 33
September 2020
Pages 64-71

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History

  • Receive Date: 23 October 2017
  • Revise Date: 21 November 2017
  • Accept Date: 22 May 2018
  • Publish Date: 22 May 2018

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