A brightening and sizing preparation has been developed which is based on a copolymer having a high content of acrylic ester units, prepared by a one-stage, high-temperature hydrolysis of an acrylonitrile copolymer in the presence of a mixture of water and an aliphatic alcohol.
Use of this preparation (as compared with the use of polyvinyl alcohol) ensures a 15–25% reduction in breakage and amount of waste in rewinding viscose textile yarn.
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Osipenko, I.F., Kulevskaya, I.V., Ivanov, N.E. et al. Brightening and sizing preparation for finishing viscose textile yarn. Fibre Chem 20, 123–125 (1988). https://doi.org/10.1007/BF00549246
- Polyvinyl Alcohol