Development of Green/Skin-friendly Textiles by Minimizing Formaldehyde Content in Pigment Printing

Muhammad Irfan Siyal; Sidra Saleemi; Noorullah Soomro; Raja Fahad Qureshi

doi:10.32350/jdt.32.05

Muhammad Irfan Siyal Department of Textile Engineering, National Textile University, Pakistan https://orcid.org/0000-0002-3873-5366
Sidra Saleemi Institute of Polymer and Textile Engineering, University of the Punjab, Lahore, Pakistan https://orcid.org/0000-0001-6581-7538
Noorullah Soomro Namangan Institute of Textile Industry, Republic of Uzbekistan https://orcid.org/0009-0002-5989-9666
Raja Fahad Qureshi Department of Textile Engineering, Mehran University of Engineering and Technology, Pakistan https://orcid.org/0000-0003-4798-3289

DOI: https://doi.org/10.32350/jdt.32.05

Keywords: Formaldehyde content, pigment printing, rubbing fastness, skin-friendly textile, urea, washing fastness

Abstract

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This study aims to reduce the content of formaldehyde in pigment printed cotton fabric with deep shades. A hand screen printing method was applied using various curing temperatures and concentrations of urea for preparation of skin-friendly products. The woven, bleached fabrics were printed following a precise process of screen printing and these samples were dried and curried for proper fixation. Standard test procedures were followed to assess the content of H-CHO (formaldehyde) during washing and rubbing. H-CHO contents were instantly reduced by increasing the temperature of the printed fabric during curing. The best outcome for wet and dry fastness of rubbing was achieved at 160˚C, while a little enhanced rubbing outcomes were observed when the concentration of urea was 2% at a fixation temperature of 150˚C. The final product may be effectively used for clothing purpose, meeting the OEKO-TEX® Standard 100 standard for low formaldehyde content.

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