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2 Zeszyty Naukowe. Włókiennictwo / Politechnika Łódzka

2 2000

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Mechanical characteristics of cottonized flax fibers

Militký J., Křemenáková D., Kovačič V., Bajzík V.

Zeszyty Naukowe. Włókiennictwo / Politechnika Łódzka

2000

z. 59

203-210

The basic properties of bast fibers are discussed with respects of differences between flax and hemp fibers. The main part is devoted to description of influence of enzymatic cottonization on the selected mechanical properties of ultimate flax fibers. For characterization of ultimate strength the Weibull distribution is used. The initial modulus and deformation work are estimated from experimental data.

Geometrical characteristics of cottonized flax fibers

Militký J., Kovačič V., Křemenáková D.

Zeszyty Naukowe. Włókiennictwo / Politechnika Łódzka

2000

z. 59

239-244

The main aim of this contribution is description of influence of enzymatic cottonization on the selected geometrical properties of ultimate flax fibers. For characterization of cross section shape changes the shape factor is used. The fineness is computed from area of cross section and gravimetric measurements. The length distribution of ultimate flax fibers is characterized by the robust median measure. The frequency of bundles exceeding some limit sizes are computed.