Using an apparatus with which a yarn can be intermittently exposed to an air jet in its axial direction, we have elucidated the effects of various process conditions, such as the air pressure, the yarn speed (the number of rotations of a disk),the feed ratio, the nozzle height, the nozzle diameter and the frequency of blowings, on the number of tangles and the yam tension, and investigated the process characteristics of this apparatus. The maximum number of tangles obtained in the presentapparatus is 77 /m, which confirms by comparison to the result obtained with a conventional interlacer that the present apparatus can be put to practical use.
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