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Needles for manufacturing zip fasteners

Product:
Needles with a flat area on the left and right.
Different flat areas make different needle point spacings possible
Needles are used in pairs
Stitching technique
Double chain stitch
Endless manufacture
Applications:
Needles for manufacturing zip fasteners by sewing
Plastic spirals onto textile strips
Needles for the (special) manufacture of ties
Product :
Needles with a 2.4 m-long guide wire
Choosing the right point form:
The material determines the point form:
Silk: Square point(Q point)
Woven or knitted fabric: Round point ( R point)
Stitching technique
Basting stitch Machine
Fully automatic tie-sewing machine
Needles for linking
Product :
Curved needles with eccentric point
Ecentric point projects beyond the outer radius of the needle
Stitching technique:
Overedge / Overlock stitch