Stitch type
The formation of stitches without fabric, in the fabric, through the fabric and on the fabric and other means. Many types of sewing equipment and sewing equipment with a variety of forms can form a variety of stitch structure to adapt to different uses, so the seam name of the many complex changes. Stitch type According to the formation of stitch patterns and structural transformation, the stitches are divided into the following six categories:
Chain stitch
Chain stitch pattern is formed by more than one needle and thread, is characterized by inner ring. It consists of more than one suture coil through the fabric, and after passing through the fabric, with one or several subsequent coil for the internal links connected by string sets.
Manual stitching
This type of stitch pattern originating from hand stitching is characterized by a single-line form. This single thread penetrates the fabric in the form of a single row of stitches and is consolidated with a single row of stitches that penetrate and pass through the fabric.
Lock stitch
Lock stitches are also called shuttle stitches. It is formed by more than two groups of sutures, and has more than two groups of the general characteristics of the intertwined. A set of loops penetrate through the fabric and are consolidated by a second set of stitches (one or several).
Multi-line chain stitch
This multi-line chain stitch is formed by more than two sets of sutures, with two sets of characteristics of the suture cross-linked. The stitches of one set of stitches penetrate through the fabric and are consolidated with the other set of loops by interlocking and cross-stitching.
Chain stitch
The stitch pattern is formed by a set of more than one stitches, the stitches having at least one set of stitches generally penetrating through the fabric and being consolidated before the successive stitches pass through the fabric; or in the first group The stitches of the stitches are consolidated and crossed with the coils of one or more cross-linked sets before they pass through the fabric again.
Overlays chain stitches
Overlay chain stitch is formed by more than two sets of sutures, generally with two sets of suture fabric will be positive, anti (or upper and lower sides) are covered with both sides of the characteristics. The stitches of the first set of stitches pass through the stitches of the third set of staples already secured to the surface of the fabric and then penetrate through the fabric where the stitches are crossed with the stitches of the second set of stitches at the bottom of the fabric ring. The two exceptions to this process are the stitch pattern 601, which uses only two sets of stitches. As for the function of the third group of sutures, is completed by a line of the first group of sutures.
Seam type
Seam type is defined by the ISO4915 stitch type, the number of layers and the combination of the composition of the type of composition. Its structure and shape for the appearance and strength of sewing products has a decisive significance. Due to the number of the pieces to be sewn and the arrangement and the different needle puncture patterns, the change of the seam pattern is more complicated than the stitching. In order to carry out the standardization of sewing, so that garment manufacturing has a simple engineering language and sewing machine special accessories configuration, the International Organization for Standardization in March 1981 to develop a seam of the international standard (ISO / DIS4916). It is the garment industry to carry out import and export trade, technology exchange and the introduction of equipment will bring convenience.
International Standard Classification of Seams
In the international standard seam type, seam type according to the stitch type, the number of sewn stitching and configuration is divided into eight categories. The sewing edge is divided into two types: “limited” and “infinite”. The cloth edge on which the stitch is directly arranged is called the limited cloth edge. The edge that is far away from the stitch is called infinite cloth edge.
One, by two or more than two pieces of material composition, and two-layer material of the limited cloth edge in the same side, including both sides of a sewing material are limited cloth edge seam.
Second, by two or more than two pieces of material composition, its limited cloth edge of the side. Two pieces of sewing material is not in a plane, the two pieces of fabric relative to each other stacked configuration, such as a cloth, its limited cloth edge can be located on one side, or both sides are limited cloth edge.
Third, by two or more pieces of material composition, in which a piece of sewing material is one side of the cloth edge is limited, the other piece of cloth edge on both sides are limited cloth edge, and ride the first piece of the edge, the first Piece of cloth piece of cloth wrapped in a limited wrap. If there is another piece of cloth can be the same with the first piece or with the second piece.
4, by two or more pieces of material composition, two pieces of material in the same plane relative to its limited cloth edge of the side. If there are cloth, the limited cloth edge can be located at one side or both sides are limited cloth edge.
5, by one or more than one seam material composition, such as sewing materials in the following two, both sides are infinite cloth edge. If there are cloth pieces, one side or both sides may be limited cloth edge.
6, only one piece of material, one side (left or right can be) for the limited cloth edge.
7, at least two pieces of material to form, in which a side of the limited cloth edge, the other side of the material are limited cloth edge.
8, by one or more pieces of material composition, regardless of the number of pieces, all sides of the material are limited cloth edge.
