Nanostructural biochemical modification of flax fiber in the process of its preparation for spinning

Авторы публикации: 
Koksharov S.A., Aleeva S.V., Lepilova O.V.
AUTEX Research Journal
Год публикации: 

The developed principles of nanoengineering of linen textile materials implement the techniques of spatially
localized effects of protein catalysts on polymeric cellulose companions with selective splitting of impurity
compounds without damaging technologically necessary nano-sized formations of binders in the fiber structure.
The optimal ranges of values of the residual content in flax fiber prepared for spinning are identified on the basis
of the analysis of the contribution of successive stages of enzymatic and peroxide treatments to the splitting of
polymers and the differentiation of the effects of impurities on the technological properties of the yarn. The
recommended level of residual pectin, lignin and hemicellulose (wt. %) is: after enzymatic treatment
P1 = 0,9-1,1; L1 = 3,6-4,2; Hc1 = 10,0-12,0; after peroxide bleaching P2 = 0,35-0,45; L2 = 2,0-2,6; Hc2 = 7,0-8,0.
The required level of fiber structural modification at the stage of preparing roving for spinning can be achieved
through use of protein catalysts with the globule size 50...100 nm. The use of enzymes with these dimensional
characteristics helps to ensure splitting of adhesive polymers in the surface layer of incrusts and in the areas of
intercellular formations, preventing fiber crushing without damaging nano-sized fractions of binders. The
implementation of this method contributes to a significant improvement in the uniformity of structural and physicomechanical
properties of flax yarn. Increase in yarn fineness is accompanied by increase in semi-finished product
strength, improvement of deformation properties and reduction of breakage in the spinning process.

Алеева Светлана Владимировна