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Article
Publication date: 1 February 1990

Mehmet Gencoglu

Discusses the approach to work study used in West Germany. Examinesthe nature and functions of the body that is responsible for providing aframework for work study practice – REFA…

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Abstract

Discusses the approach to work study used in West Germany. Examines the nature and functions of the body that is responsible for providing a framework for work study practice – REFA – as well as the organization of training and instruction that is offered. Surmises that work study practice in West Germany differs from that of other countries by being more formal and structured, and that this has been used to deliver numerous benefits.

Details

Work Study, vol. 39 no. 2
Type: Research Article
ISSN: 0043-8022

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Article
Publication date: 31 May 2022

Lutfi Özdemir, Mustafa Batuhan Kurt, Ahmet Akgül, Mehmet Oktav and Mujgan Nayci Duman

The purpose of this paper is to optimize the key parameters (mesh count, paper type and ink type) in screen printing, which are affecting the printed ink volume. The objective of…

176

Abstract

Purpose

The purpose of this paper is to optimize the key parameters (mesh count, paper type and ink type) in screen printing, which are affecting the printed ink volume. The objective of the optimization was to maximize the color reliability by decreasing the color difference (ΔE value) of the prints while minimizing the ink consumption. Screen printing is still dominating the printing industry to make cost-effective production when high volumes are needed.

Design/methodology/approach

The experiment was designed using the Taguchi method, and the samples were prepared with screen-printing by using the standard squeegee angle and pressure. The effect of mesh count, ink type and paper type on ink consumption was evaluated with using analysis of variances and main effects plots of S/N ratio and standard deviation.

Findings

The factors ink type, paper type and mesh count were found significant for ink consumption due to their Probability (P) values which were lower than 0.05. It was determined that the mesh count was the most critical variable with the analysis of variance. The analysis showed that the selection of an optimum mesh count was the key to controlling the amount of the deposited ink. Although mesh counts were inversely proportional with the ink consumptions, they did not affect the color differences as expected.

Originality/value

The optimization of process parameters, that are most effective on the print quality, is necessary to minimize the ink usage and lower the costs and environmental impact without exceeding the desired ΔE value limits.

Details

Pigment & Resin Technology, vol. 53 no. 1
Type: Research Article
ISSN: 0369-9420

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