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3 results on '"Conventional and digital offset prints"'

1. The deinkability improvement of offset prints made from a two-side coated substrate

Author

Zeljka Barbaric-Mikocevic, Ivana Plazonic, and Vesna Dzimbeg-Malcic

Subjects
Deinkability, Flotation deinking, Hydrogen peroxide pre-treatment, Two-side coated printing substrate, Conventional and digital offset prints, Biotechnology, TP248.13-248.65
Abstract

This paper describes the improved removal of impurities (coating, ink/toner) from offset prints produced by digital printing of two-side coated paper. The substrates were printed by conventional and digital offset processes. Based on image analysis results it was established that deinking flotation is an inefficient method for ink particle removal from digital offset printed paper, but it is efficient for ink removal from conventional offset printed paper. On the other hand, pre-treatment with hydrogen peroxide solution gives better results for ink particle removal from digital offset prints than from conventional offset prints. Optimal parameters for hydrogen peroxide pre-treatment for both offset prints were chosen based on unprinted substrate mass loss results in the preliminary investigation. These results showed that hydrogen peroxide pre-treatment is more successful at removal of impurities in comparison with flotation deinking without pre-treatment.

Published
2013

2. The Deinkability Improvement of Offset Prints Made from a Two-Side Coated Substrate.

Author

Barbaric-Mikocevic, Zeljka, Plazonic, Ivana, and Dzimbeg-Malcic, Vesna

Subjects
*DEINKING (Waste paper), *PAPER recycling, *DIGITAL printing, *HYDROGEN peroxide, *DIGITAL printing presses
Abstract

This paper describes the improved removal of impurities (coating, ink/toner) from offset prints produced by digital printing of two-side coated paper. The substrates were printed by conventional and digital offset processes. Based on image analysis results it was established that deinking flotation is an inefficient method for ink particle removal from digital offset printed paper, but it is efficient for ink removal from conventional offset printed paper. On the other hand, pre-treatment with hydrogen peroxide solution gives better results for ink particle removal from digital offset prints than from conventional offset prints. Optimal parameters for hydrogen peroxide pre-treatment for both offset prints were chosen based on unprinted substrate mass loss results in the preliminary investigation. These results showed that hydrogen peroxide pre-treatment is more successful at removal of impurities in comparison with flotation deinking without pre-treatment. [ABSTRACT FROM AUTHOR]

Published
2013

3. The deinkability improvement of offset prints made from a two-side coated substrate

Author

Vesna Dzimbeg-Malcic, Zeljka Barbaric-Mikocevic, and Ivana Plazonić

Subjects
Engineering drawing, Environmental Engineering, Offset (computer science), Materials science, lcsh:Biotechnology, Bioengineering, Substrate (printing), engineering.material, Two-side coated printing substrate, law.invention, chemistry.chemical_compound, Coating, law, lcsh:TP248.13-248.65, Composite material, Conventional and digital offset prints, Hydrogen peroxide, Waste Management and Disposal, Coated paper, Inkwell, business.industry, Flotation deinking, Deinking, chemistry, deinkability, flotation deinking, hydrogen peroxide pre-treatment, two-side coated printing substrate, conventional and digital offset prints, Hydrogen peroxide pre-treatment, engineering, Digital printing, business, Deinkability
Abstract

This paper describes the improved removal of impurities (coating, ink/toner) from offset prints produced by digital printing of two-side coated paper. The substrates were printed by conventional and digital offset processes. Based on image analysis results it was established that deinking flotation is an inefficient method for ink particle removal from digital offset printed paper, but it is efficient for ink removal from conventional offset printed paper. On the other hand, pre-treatment with hydrogen peroxide solution gives better results for ink particle removal from digital offset prints than from conventional offset prints. Optimal parameters for hydrogen peroxide pre-treatment for both offset prints were chosen based on unprinted substrate mass loss results in the preliminary investigation. These results showed that hydrogen peroxide pre-treatment is more successful at removal of impurities in comparison with flotation deinking without pre-treatment.

Published
2013

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