Compound Needle Warp Knitting PDF

Knitting Technology  Compound-Needle Warp Knitting Machine ►For increasing the productivity of the warp knitting machines a compound needle has been used instead of a beard or latch needle on modern machines.  Compound-Needle Warp Knitting Machine ► Compound Needle (main...

Knitting Technology  Compound-Needle Warp Knitting Machine ►For increasing the productivity of the warp knitting machines a compound needle has been used instead of a beard or latch needle on modern machines.  Compound-Needle Warp Knitting Machine ► Compound Needle (main Body) ► Compound Needle (Closing Element) ► Trick Plate ► Sinker ► Yarn End ► Yarn Guide ► Fabric Knitting Action  Knitting Action ►Needle rise and guide bar swing. With the sinkers forward holding down the fabric, the hooks and tongues rise, with the hook rising faster, until the head of the latter is level with the guide holes and is open. The guides then swing through to the back of the machine. Knitting Action  Knitting Action ►The overlap and return swing. The guides shog for the overlap and swing to the front of the machine; immediately, the hooks and the tongues start to descend with the tongues descending more slowly, thus closing the hooks. Knitting Action  Knitting Action ►Landing and knock-over. The sinkers start to withdraw as the needles descend so that the old loop is landed onto the closed hook and then knocked-over as it descends below the sinker belly.  Knitting Action ►At this point the underlap occurs before the needles begin their upward rise and the sinkers move forward to hold down the fabric. Comparison Comparison  Properties of Warp Knitted Fabric ► More stable than weft knitted fabrics. ► Big and small holes are possible. ► Many designs are possible. ► Highly course yarn can be used. ► Technical fabric can be produced.  Main products of Warp Knit ► Nets ►Curtains ►Technical fabrics ► Covers ► Covering sheets Use of Warp Knitted Fabric ►Use to fulfill technical demands, like, filters, seat covers etc. ►Used as curtains, table covers. ►Used as bed sheet.