Conclusions
A mixture of viscoses with various ripeness indices will go into an equilibrium state on keeping for about 3 h.
To calculate the ripeness index of a mixture of viscoses, it is possible to use empirical formulas, starting from the ripeness indices of the components.
In contemporary methods of preparing viscose for spinning, a mixture of viscoses with a wide distribution in ripening times is delivered.
Preparation of viscose for spinning, with return of part of the viscose from the first and second filtrations to the mixer, makes it possible to raise the stability of maintenance of the ripeness index of the vicose which is delivered to spinning, and to solve more rationally the problem of viscose recovery in recharging the filter presses.
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Literature cited
L. V. Zhuravlev, B. V. Maiboroda, V. G. Kulichikhin, and E. B. Kostikova, Khim. Volokna, No. 3, 48–56 (1973).
A. Lyselius and O. Samuelson, Svensk. Papperstidn.,64, No. 5, 145 (1961); A. T. Serkov, A. B. Pakshver, and E. M. Mogilevskii, in: Trans. of the VNIIV, No. 2 [in Russian], Gizlegprom, Moscow (1955), p. 68.
Additional information
Translated from Khimicheskie Volokna, No. 3, pp. 31–33, May–June, 1983.
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Skorobogatykh, V.V., Knyazeva, N.E. & Serkov, A.T. Effect of mixing viscoses with different ripeness indices on the properties of a mixture of viscoses and high-modulus viscose fibre. Fibre Chem 15, 198–201 (1984). https://doi.org/10.1007/BF00552800
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DOI: https://doi.org/10.1007/BF00552800