Construction of a pilot plant for producing fine linen fibers for textiles |
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| Institution: | 1. Technische Universität Hamburg-Harburg, Institut für Technische Biokatalyse, Denickestraße 15, D-21073 Hamburg, Germany;2. Institut für Textil- und Verfahrenstechnik (ITV), Körschtalstraße 26, D-73770 Denkendorf, Germany;3. Heger.Hulda Natural Fibre Consultants, Bornwischen 17, D-23795 Bad Segeberg, Germany;1. Department of Genetic Engineering, School of Biotechnology, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India;2. Centre of Excellence in Bioinformatics, School of Biotechnology, Madurai Kamaraj University, Madurai 625021, Tamilnadu, India;1. Centre for Energy, Indian Institute of Technology, Guwahati, Assam 781039, India;2. Department of Biosciences and Bioengineering, Indian Institute of Technology, Guwahati, Assam 781039, India |
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| Abstract: | A newly built 200-L-pilot plant was used for testing a novel chemo-enzymatic process for producing fine flax fibers without the weather-associated risks of dew retting. Raw, green and decorticated flax fibers were placed inside trays in the tempered main tank of the pilot plant, where a vertically acting mechanism gently moved the parallel fiber bundles. The fibers were incubated in an alkaline bath, in a pectinolytic culture of Geobacillus thermoglucosidasius PB94A and in a peroxide-softener bath. Finally the fibers were dried, combed and hackled into a sliver that is ready for wet-spinning of linen yarns. A total of 140 kg of raw fibers were treated in 40 different experiments in the pilot plant. The resolution of the raw fibers improved from 7.3 to 2.7 ± 0.3 after the treatment. The fineness was enhanced from 37.4 dtex to 11.1 ± 1.2 dtex. The proposed pilot-plant process produced constant-quality fibers and could be easily up-scaled. |
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