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Experimental determination of the tensile force in embroidery threads knitting

Hadzhidobrev P., Charalambus A.

Autex Research Journal

2005

Vol. 5, no. 3

149--153

In this work, a method for indirectly determining the tensile force in yarn of twisted units is propounded on a tensile force-elongation diagram. The elongation occurs in the change of the screw line step of the twisted units. The screw-line step is calculated after multiple measurements of short-length areas in the work zone of the knitting needles. The measuring is possible for knitting in producing conditions and in real time.

Indirect determination of the load intensity parameters acting on threads during knitting by means of testing structure changes in special prepared yarn

Charalambus A.

Autex Research Journal

2004

Vol. 4, no. 1

33--36

Intensive loading of yarn processed by knitting influences the efficiency of the process and the quality of the knitted fabrics which are manufactured. It is frequently necessary to determine their value and eliminate the negative effect if such a necessity arises. In this work we propose an indirect method for measuring and testing loads and load changes acting on the yarn during the knitting process. By means of this method it is possible to see which parts of the stitch structure are the most loaded, and thus predict the consequences of these loads on the yarn structure. Special knitted thread-bands are used, which are photographed at the moment of knitting or scanned after the unknitting of the knitted fabric. The structure of these bands easily imprints ‘copies’ of the value and the type of loads.