Preparation of crimped synthetic yarns directly during the spinning process
The practical possibility of preparing yarns with an adequate crimp directly during the spinning process without expensive operations to give yarns a crimp by mechanical means has been demonstrated experimentally.
Yarn crimp is achieved by using spinnerets having holes of variable cross-section; this ensures obtaining yarns with a “head-tail” cross-sectional profile.
The authors express their thanks to K. H. Gaitel, a specialist in the Schwartz (East Germany) man-made fibre company and to F. Dolke and G. Tuschan, specialists in the spinneret manufacturing plant in Grebzig (East Germany) for help in carrying out this work.
KeywordsPolymer Manufacturing Plant Expensive Operation Practical Possibility Synthetic Yarn
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