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New Enzyme-based Process Direction to Prevent Wool Shrinking without Substantial Tensile Strength Loss |
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| Authors: | H B M Lenting M Schroeder G M Guebitz A Cavaco-Paulo J Shen |
| Institution: | (1) Department of Innovative Materials, TNO Industry and Technology, Ariënsplein 3, 7511 JX Enschede, The Netherlands;(2) Department of Environmental Biotechnology, Graz University of Technology, Graz, Austria;(3) Department of Textile Engineering, Minho University, Guimarães, Portugal;(4) Textile Engineering and Materials (TEAM) Research Group, De Montfort University, Leicester, UK |
| Abstract: | In this paper a new enzymatic process direction is described for obtaining machine washable wool with acceptable quality. In general, application of protease enzyme technology in wool processing results in considerable loss of tensile strength by diffusion of the enzyme into the interior of wool fibers. To overcome this disadvantage enzymatic activity has been more targeted to the outer surface of the scales by improving the susceptibility of the outer surface scale protein for proteolytic degradation. This has been realized by a pretreatment of wool with hydrogen peroxide at alkaline pH in the presence of high concentrations of salt. |
| Keywords: | Chemical modification Protease Surface modification Wool shrinkage |
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