Faisal, S, Tronci, A, Ali, M et al. (2 more authors) (2020) Pretreatment of silk for digital printing: identifying influential factors using fractional factorial experiments. Pigment and Resin Technology, 49 (2). pp. 145-153. ISSN 0369-9420
Abstract
Purpose: The purpose of this study is to identify the most influential factors affecting the printing properties and print quality of digitally printed silk fabrics in terms of colour strength and fixation percentage.
Design/methodology/approach: In this study, five factors (concentration of thickener, concentration of urea, concentration of alkali, pH of pretreatment liquor and steaming duration) were investigated using a blocked 25−1 fractional factorial experiment. The type of thickeners [polyacrylic acid and polyacrylamide (PAM)] were considered as a block.
Findings: Linear models were obtained and statistically tested using both analysis of variance and coefficient of determination (R2), and they were found to be accurate at 90 per cent confidence level. It was revealed that concentration of alkali, concentrations of urea and pH of the pretreatment liquor had an increasing effect on colour strength, whereas concentration of thickener and steaming duration showed decreasing effect on colour strength of digitally printed silk fabrics. Furthermore, concentration of alkali, concentrations of urea had increasing effect on dye fixation percentage, whereas steaming duration showed decreasing effect on dye fixation percentage of digitally printed silk fabrics. In addition, PAM thickener based pretreatment recipe exhibited better printing properties for the digitally printing of silk fabrics.
Originality/value: The main influences and significant two-factor interactions were discussed in detail to gain a better understanding of the printing properties of digitally printed silk fabrics. The findings of this study are useful for further optimisation of pre- and post-treatment processes for digital printing of silk fabrics.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019, Emerald Publishing Limited. This is an author produced version of a paper published in Pigment and Resin Technology. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Silk; Pretreatment; Colour strength; Digital printing; Dye fixation percentage |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemistry (Leeds) The University of Leeds > Faculty of Arts, Humanities and Cultures (Leeds) > School of Design (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 28 Nov 2019 15:09 |
Last Modified: | 11 Mar 2020 16:07 |
Status: | Published |
Publisher: | Emerald |
Identification Number: | 10.1108/PRT-07-2019-0065 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:153956 |