Four-thread wrapping needle is a double-thread and four-thread needle, which adds one more needle and thread than three-thread wrapping needle, which increases the strength. It is used to sew the pieces of high-grade clothes with high tension and strong friction, such as shoulders and sleeves, especially for sewing coats.
Five-thread hemming is a double-needle five-thread stitch, which further improves the fastness and production efficiency and has better elasticity than four-thread hemming. It is often used to sew coats and repair underwear.
The hemming stitch can be divided into single thread, double thread, three thread, four thread and five thread:
1. Single stitch is a single stitch, which is mainly used to sew the edge of a blanket.
2. Double seam is a single needle double seam, which is mainly used for sewing elastic parts such as the bottom edge of elastic shirts.
3. Three-thread sewing is a single-needle three-thread stitch, which is a common stitch for ordinary knitted garments, especially for sewing some low-grade pieces.
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