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You are here: Conferences & Events * 2011 Budapest * Abstracts * 5. Environment, Publishing

5. Environment, Publishing

5.01 Printing and environmental sustainability

Ivana Bolan?a Mirkovi?, Igor Majnari?, Sandra Musta?, Zdenka Bolan?a


Abstract
The impact of the printing process on the environment is significant. This paper explores the voltage of reverse roller in indirect electrophotography printing in the field of 0V to -250 V on the life end of the printed products through the efficiency of recycling. In addition, the quality of color reproduction is discussed. For the printing is used: uncoated woodfree paper, double-sided coated paper and Soho coated paper.

Characteristic of the results of image analysis handsheets made from recycled fibers prints obtained by changing the voltage of reverse rollers from 0 to -200V is reduced in the total dirt spot number and increasing in the dirt spot area. The efficiency of recycling is the highest for printing on uncoated paper, then on Soho coated paper, and the worst on double-sided coated paper. The quality of fullcolored prints observed through the volume gamut of prints gives reverse results.

This is just part of a comprehensive study involving all six separate stages of electrophotography printing synchronal performed. In this study the use of experimental design and creation of statistical models in the direction of optimization process and environmental sustainability follows.


Keywords: environmental sustainability, digital printing, voltage of reverse roller, quality of prints, recycling
Contact: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

 

5.02 Development of innovative sustainable printing practices to reduce VOCs emissions in the SMEs printing industry based on BREF best available techniques

Markus Johannes Müller, David Pérez, Vicente de Gracia, Alejandro Fuentes, Susana Otero


Abstract
Printing SMEs are usually out the scope of the Best Available Techniques(BATs) defined in the STS(Solvent Treatment Surface) BREF. In addition, the BATs implementation produces technical imbalances which became in a productivity and quality decrease, so the BATs are abandoned and the environmental impact doesn´t decrease. The objective of this research is to developed innovative sustainable printing practices to reduce VOCs emissions in the Printing SMEs, while keeping the quality and productivity of their processes.

The research had the next specific objectives: Study of the current impact of BATs in the Printing SMEs; Determination of the main BATs to reduce VOCs in the Printing SMEs and the barriers to implement them; Development of Sustainable Practices for an optimal implementation of critical BATs; Development of a Tool to achieve a successful implementation.

The European SMEs printing companies needs a technical support to understand and implement the BATs, especially Sheet Fed Offset SMEs, which are out of the scope of the legislations. The critical information for SMEs Sheet Fed Offset companies is how to reduce the use of IPA and how change from Mineral to Vegetable Inks. A innovative procedure to change from mineral oils inks to vegetable inks has been developed in four steps: Preconditions, Study of printing condition with mineral oil based inks, Implementation, Conformance printing. This Best Practices can reduce the use of mineral oil inks in 100%. A innovative procedure to achieve IPA reduction has been developed in three steps: Preconditions, Housekeeping and New Additives and Machinery. Housekeeping practices reduced IPA concentration to a maximum of 8 vol. % in this manner New Additives and Machinery can reduced IPA concentration to a maximum of 5 vol.% in this manner; in some cases even further up to 0 vol.% .The information showed in the developed eTool can facilitate the implementation of the developed Best Practices.


Keywords: sustainable printing, VOCs emissions, IPA reduction
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5.03 Water conservation and approach to zero liquid discharge (ZLD) in a paper manufacturing plant - a case study

Rajendrakumar Anayath, Subrahmanyam S.V., Chinnaraj S, Amrutharaj Harikrishnan, Rajesh K. S., Karunanithi P., Baskaran N.


Abstract:
Tamilnadu Newsprint and Papers Limited (TNPL) is India’s largest bagasse based Integrated Pulp and Paper mill, having an installed capacity of 245,000 TPY Printing & Writing paper and poised to enhance its capacity to 4,00, 000 TPY by middle of Year 2010. It used to consume about 70,000 m3/day and discharging 55,000 m3/day where 15,000 m3/day being accounted for evaporation losses.

TNPL has an installed capacity of 245,000 TPY Printing & Writing paper and enhancing its capacity to 4, 00, 000 TPY by middle of Year 2010 maintaining the same total fresh water consumption. It used to consume about 70,000 m3/day and discharging 55,000 m3/day where 15,000 m3/day being accounted for evaporation losses. The mill has determined to go for major water saving program along with pollution load reduction and developed a road map to go for Zero Liquid Discharge (ZLD) and same is presented and discussed in this paper.


Keywords: ZLD-Zero Liquid Discharge, ECF-Elemental Chlorine Free, D-Dioxide Extraction, ESP-Electro Static Precipitation, AOX-Adsorbable Oxygen Halide
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