1, with different names;
Sewing machine, sewing machine and sewing machine say the same thing, and everyone has different usage habits and different names. Refers to a machine used to lock edges.
Copying machine and edge printer are basically different names for the same machine function. The edge of the dress is very close and narrow, which is called the closed hem in the north and the wavy hem in the south.
2. Different functions;
Functionally, there are differences between single needle, double needle, three needle, three thread, four thread, five thread and six thread. Four-thread sewing machine is commonly used at home, with two needles and four threads. If you remove one stitch and one thread, it becomes a three-thread sewing machine. The function of sewing machine is to lock the edge of the cut piece, so that the edge of the cut piece is no longer slack and the quality of the finished garment is guaranteed. Second, it is used to sew knitted garments, making them elastic and firm, with high sewing efficiency.
Extended data
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 the 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;
4. Four-seam is a double-needle four-seam which is more powerful than three-seam It is used to sew pieces of high-grade clothes with high tension and strong friction, such as shoulders and sleeves, especially for sewing coats.
5. Five-thread hemming is a stitch with double stitches and five threads, which further improves the fastness and production efficiency, and is more elastic than four-thread hemming, and is often used for sewing coats and repairing underwear.
Reference source; Baidu encyclopedia-sewing machine