, Volume 25, Issue 9, pp 5349–5359 | Cite as

Vat dyeing at room temperature

  • S. K. PatraEmail author
  • A. K. PatraEmail author
  • P. Ojha
  • N. S. Shekhawat
  • A. KhandualEmail author
Original Paper


Traditionally, naturally extracted Indigo has been used for dyeing cotton. Amongst all the classes of dyes for cellulosic material, vat dyes are most widely used due to their excellent fastness properties. The vat dyeing process, depending upon the subclasses, has to go through reduction phase for solubilisation, dyeing and oxidation phases at specific conditions. Even with the advent of new techniques like the electrochemical and bacterial process, their industrial use is relatively limited. Prior investigation on bacterial reduction suggests only a few possible varieties of indigo-reducing bacteria, sources of most of which are still unknown. Also to implement this processes, they are required to be performed at higher temperatures. In the present study, we have developed a novel method of vatting and dyeing using bacterial cell lysate at room temperature followed by air oxidation. This paper also compares the newly proposed processing route with the existing conventional ones, and the experimental results have shown promising results regarding improvement in dye uptake, faster dyeing, and better levelness along with their fastness properties. Besides, the proposed process ensures energy saving, dye effluent load reduction and simplifies the existing process.

Graphical Abstract


Room temperature dyeing Bacterial vat reduction Lysate Particle size analysis K/S CIE chromaticity 



Our sincere thanks to D.C. Handloom, Govt. of India, Ministry of Textiles for funding this research project. We express our gratitude to the textile committee, ICT, Mumbai, College of Engineering and Technology (CET, TEQIP-II), KIIT University for their kind support for testing. A Patent application titled “Improved Process for Dyeing of Textiles” has been filed at the patent office on February 16, 2015; application number ‘186/KOL/2015’.

Authors’ contributions

SKP, AKP and PO developed the Cell lystate bacteria for vat dyeing and planned experiments. NSS and AK also planned some experiments, conducted and prepared the manuscript draft. All authors contributed their suggestions for editing the final manuscript.

Supplementary material

10570_2018_1901_MOESM1_ESM.docx (2.6 mb)
Supplementary material 1 (DOCX 2692 kb)


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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Weavers’ Service CentreMinistry of TextilesBhubaneswarIndia
  2. 2.IMGENEX India Pvt. Ltd.BhubaneswarIndia
  3. 3.Department of Textile EngineeringCETBhubaneswarIndia

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