Objective
This study had proved that peracetic acid can be used as degumming agent for flax roves on the pilot-scale. The substitution of hydrogen peroxide is possible in the first and second degumming stage and led to an improvement of several characteristics, such as the degree of polymerisation, the yarn strength and the weight loss of the rove.
On the basis of the results obtained using ozone as the dissociation medium of technical flax fibres, there emerged the concrete feasibility of the process and the parameters governing it. Environments with acidic pH, low temperatures and the presence of radical scavengers are the prerequisites for obtaining high yields in reduced time, compared to conventional treatment, and thus with possible cost reduction. The limiting factor to the immediate application of the process on the industrial scale is the need to modify the rove texture and the need for the designing and realisation of a prototype of an industrial reactor of a new conception with respect to the traditional reactors used in treatments with chlorite and peroxides.
Membrane process was found a powerful technique for decolouring and clarifying the processing waters. Costs and re-use of the membrane could be the limiting factor.
Topic(s)
Data not availableCall for proposal
Data not availableFunding Scheme
CSC - Cost-sharing contractsCoordinator
33079 Sesto Al Reghena
Italy