Some physicochemical problems of the production of regenerated-cellulose fibres — a review

Conclusion

It was stated during the examination of the problems dealt with in this article that the discussion concerns only certain physicochemical aspects of the production of regenerated cellulose fibres. There is no doubt that in addition to these problems there are other important ones in this area of technology which require further study, among them the purley chemical problems (the esterification reaction, side reactions, the chemistry of viscose ripening, the reactions in the precipitation liquor, etc.), as well as problems relating to the equipment and general technology.

Nevertheless, in a discussion of the chemical problems and those concerning the equipment, etc., account must be taken of the conclusions which follow from the material presented in this article in respect of the characteristies of the physicochemistry of regenerated-cellulose fibres, more particularly during the spinning stage. These conclusions are useful to bear in mind, moreover, when assessing the directions to be followed in future research, for example in a search for a solution to the problem of reducing the harmful effect of the production process and an investigation of the feasibility of using direct solvents for this prupose.

Many of the hypotheses advanced in this article require further discussion and should not be treated as final solutions. In view of the importance of and necessity for discussions of the problems in the production of regenerated cellulose fibres this review is presented not as a summary of achievements but rather as an occasion for a broad-based discussion among the specialists in the fields of the theory and technology of cellulosic fibres.