Optimization of flexo process parameters to reduce the overall manufacturing cost

The flexo process parameters play an important role in ink transfer and will lead to wastage of inks, substrate, solvents and printed stocks if not monitored and controlled. The work focuses on optimizing the flexo process parameters for 40 microns 3-layer polyethylene (PE) film with Blue Nitrocellulose (NC) ink to reduce overall manufacturing cost while maintaining the print quality for diaper application. An experimental design was conducted for the response Ink GSM (grams per square meter), ?E and Print Mottle with factors such as ink viscosity, anilox volume, plate dot shape and substrate opacity. The data was analyzed through Main Effect, Interaction Plot and Analysis of Variance (ANOVA). The regression models were developed for the response to validate the predictive ability of model. The process optimization resulted in reduction of Ink GSM, ?E and Print Mottle by 18%, 52% and 1% respectively. The ink consumption reduced by 18.26% with minimized print defects, thereby reducing the overall manufacturing cost.

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Process Optimization of PVDF Piezoelectric Nanofiber Production via Electrospinning

Acta Universitatis Sapientiae Electrical and Mechanical Engineering ◽

10.2478/auseme-2021-0001 ◽

2021 ◽

Vol 13 (1) ◽

pp. 1-13

Author(s):

Attila Levente Gergely ◽

József Kántor

Keyword(s):

Experimental Design ◽

Process Optimization ◽

Process Parameters ◽

Flow Rate ◽

Significant Influence ◽

Vinylidene Fluoride ◽

Fiber Diameter ◽

Processing Parameters ◽

Electrospinning Method ◽

Poly Vinylidene Fluoride

Abstract The aim of this work was to investigate the effect of processing parameters of the electrospinning method on the resulting poly (vinylidene fluoride) (PVDF) fiber diameter. A three factorial Box-Behnken experimental design was employed to study the influence of applied voltage, the capillary-to-collector distance and the applied flow rate on the resulting fiber diameter. We successfully prepared bead-free PVDF nanofibers with fiber diameters ranging from 510-1300 nm. The experimental design analysis did not show significant influence of the studied process parameters under the used boundary conditions on the fiber diameter, thus indicating the robustness of the process.

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Impact of Process Parameters on the Diameter of Nanobubbles Generated by Electrolysis on Platinum-Coated Titanium Electrodes Using Box–Behnken Experimental Design

Energies ◽

10.3390/en14092542 ◽

2021 ◽

Vol 14 (9) ◽

pp. 2542

Author(s):

Karol Ulatowski ◽

Radosław Jeżak ◽

Paweł Sobieszuk

Keyword(s):

Experimental Design ◽

Process Parameters ◽

Current Density ◽

Salt Concentration ◽

Multivariate Regression ◽

Electrical Energy ◽

Multiphase System ◽

Anova Analysis ◽

Dependent Variables ◽

Parameter Function

(1) The generation of nanobubbles by electrolysis is an interesting method of using electrical energy to form bubble nuclei, effectively creating a multiphase system. For every process, the effectiveness of nanobubble generation by electrolysis depends on various process parameters that impact should be determined. (2) In this work, the electrolytic generation of hydrogen and oxygen bubbles was performed in a self-built setup, in which a Nafion membrane separated two chambers. The generation of bubbles of both gases was investigated using Box–Behnken experimental design. Three independent variables were salt concentration, current density, and electrolysis time, while the dependent variables were Sauter diameters of generated bubbles. An ANOVA analysis and multivariate regression were carried out to propose a statistical and power model of nanobubble size as a process parameter function. (3) The generation of bubbles of hydrogen and oxygen by electrolysis showed that different factors or their combinations determine their size. The results presented in this work proved to be complementary to previous works reported in the literature. (4) The Sauter diameter of bubbles increases with salt concentration and stays constant with increasing current density in investigated range. The proposed correlations allow the Sauter diameters of nanobubbles generated during electrolysis to be predicted.

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A study of the effects of the process parameters on the flexographic printing problem “dot bridging” – part II: experimental design and print contrast/density

Pigment & Resin Technology ◽

10.1108/03699420510585166 ◽

2005 ◽

Vol 34 (2) ◽

pp. 94-100 ◽

Cited By ~ 1

Author(s):

David Galton

Keyword(s):

Experimental Design ◽

Process Parameters ◽

Flexographic Printing

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A new approach to batch process optimization using experimental design

AIChE Journal ◽

10.1002/aic.11715 ◽

2009 ◽

Vol 55 (2) ◽

pp. 342-353 ◽

Cited By ~ 8

Author(s):

Paul J. Wissmann ◽

Martha A. Grover

Keyword(s):

Experimental Design ◽

Process Optimization ◽

Batch Process ◽

New Approach

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Effects of Solvent Type and Process Parameters on Electrospinnability of Zein through Orthogonal Experimental Design

Materials Science ◽

10.5755/j01.ms.24.1.17809 ◽

2018 ◽

Vol 24 (1) ◽

Author(s):

Tuğba İNANÇ HORUZ ◽

Kadir Bülent BELİBAĞLI

Keyword(s):

Experimental Design ◽

Process Parameters ◽

Orthogonal Experimental Design ◽

Solvent Type

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Welding Process Optimization of WELDOX960 High Strength Steel

MATEC Web of Conferences ◽

10.1051/matecconf/201820704005 ◽

2018 ◽

Vol 207 ◽

pp. 04005

Author(s):

Min Hu

Keyword(s):

Penetration Depth ◽

Process Optimization ◽

Process Parameters ◽

Welding Speed ◽

High Strength Steel ◽

Welding Process ◽

Welding Current ◽

High Strength ◽

Influence Of Process Parameters ◽

Steel Analysis

This paper studies WELDOX960 high strength steel, analysis of the welding ability of WELDOX960 high strength steel. Analyze the weld ability of WELDOX960 high-strength steel materials, and study the influence of process parameters such as welding current, welding voltage, and welding speed on penetration depth and weld width in the automated welding process. Through this test, the welding process is optimized to ensure the weld quality. The results show that WELDOX960 high-strength steel adopts multi-layer and multi-pass welding to form better welds.

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Taguchi Optimization of Plasticisation Process for Glycerol and TEA Based Thermoplastic Mango Starch Biofilms

10.21203/rs.3.rs-932373/v1 ◽

2021 ◽

Author(s):

Ernest Chiedoziam Agwamba ◽

Lawal G. Hassan ◽

Achor Muhammad ◽

Abdullahi M. Sokoto ◽

Eric N. Agwamba

Keyword(s):

Young Modulus ◽

Cost Effective ◽

The Other ◽

Response Factor ◽

Optimum Conditions ◽

Taguchi Optimization ◽

Independent Variables ◽

Main Effect ◽

Independent Variable ◽

Interaction Plot

Abstract This investigation involves study of independent variable that influences the Young modulus of thermoplastic mango starch (TPS) as dependent response factor. The experiment was design using the Taguchi orthogonal technique with four independent variables; plasticiser type; glycerol (G), and Triethanolamine-(TEA) (T), percentage plasticiser (40 and 120 %), percentage carboxymethyl cellulose-CMC (10 and 50 %), and concentration of HCl (0.05 and 0.15 M). The result of the main effect plots for mean indicated that the gTPS-CMC1 with 268.85a MPa is a better outcome compared to gTPS-CMC3 with 280.31a MPa, since no significance difference was observed due to less composition requirement of CMC for gTPS–CMC1, making it more cost effective to produced with better optimum conditions. The interaction plot of the independent variables showed that for plasticiser types; when glycerol (G) was utilised a higher young modulus is observed than TEA (T) and only interacts with TEA (T) at 0.015 M HCl; 10 % CMC gives a higher response compared to 50 % CMC and showed no interaction even as the other independent variables fluctuates, and similar effect was observed for percentage plasticiser. Study concluded that the predicted mean (young modulus) is substantially consistent with the experimental observation (R2 = 0.6283).

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Weldability Investigation and Optimization of Process Variables for TIG-Welded Aluminium Alloy (AA 8006)

Advances in Materials Science and Engineering ◽

10.1155/2021/2816338 ◽

2021 ◽

Vol 2021 ◽

pp. 1-17

Author(s):

T. Sathish ◽

S. Tharmalingam ◽

V. Mohanavel ◽

K. S. Ashraff Ali ◽

Alagar Karthick ◽

...

Keyword(s):

Experimental Design ◽

Aluminium Alloy ◽

Process Parameters ◽

Surface Hardness ◽

Weight Ratio ◽

Welding Process ◽

Tig Welding ◽

Low Weight ◽

Superior Corrosion Resistance ◽

Welding Processes

Aluminium and its alloys play a significant role in engineering material applications due to its low weight ratio and superior corrosion resistance. The welding of aluminium alloy is challenging for the normal conventional arc welding processes. This research tries to resolve those issues by the Tungsten Inert Gas welding process. The TIG welding method is an easy, friendly process to perform welding. The widely applicable wrought aluminium AA8006 alloy, which was not considered for TIG welding in earlier studies, is considered in this investigation. For optimizing the number of experiments, the Taguchi experimental design of L9 orthogonal array type experimental design/plan was employed by considering major influencing process parameters like welding speed, base current, and peak current at three levels. The welded samples are included to investigate mechanical characterizations like surface hardness and strengths for standing tensile and impact loading. The results of the investigation on mechanical characterization of permanent joint of aluminium AA8006 alloy TIG welding were statistically analyzed and discussed. The 3D profilometric images of tensile-tested specimens were investigated, and they suggested optimized process parameters based on the result investigations.

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