01
After the finished product door width is determined, the total number of warp threads can be determined based on the product of the door width and the finished warp density. According to different organizational structures, the width of the gray fabric is determined by the different shrinkage rates of the finished products. The weft shrinkage of plain weave is small, so the width of gray fabric is correspondingly small. The weft shrinkage of satin weave is large, and the width of gray fabric is correspondingly small. Because its product is the total warp number, which is fixed, therefore, the warp density of plain weave fabric is high, while the weft density of satin weave is low. Since the total number of warp roots is constant, the amount of warp yarns is the same, but the amount of weft yarns increases with the expansion of the door width.
02
After determining the door width of the gray fabric unloading, you can determine The width of the gray fabric on the machine. Generally speaking, different looms have different weaving shrinkage of weft yarns, and there are many influencing factors. Fabrics of the same specifications on different looms will have different weft shrinkage due to different settings of parameters such as opening size and tension.
03
The organization has an impact on the width, so use the machine The greater influence between the door width and the gray fabric door width is the weaving shrinkage. The greater influence between the gray cloth door width and the finished door width is the dyeing shrinkage (including finishing and preshrinking treatment, etc.). The influence of the tissue on the door width depends on It is whether the structure is tight.
04
In Sanyuan tissue, such as: cotton 40 *32 / 150*78 *63″ (1/1) It is difficult to weave. If it is satin, it is less difficult to weave. If it is 2/1 twill, it is more difficult to weave.
Arrangement of difficulty coefficients: 1/1>2/1>2/2>3/1>5/3 Satin
When calculating the reed, it is necessary to Consider the total number of warp threads and the number of reeds. Improper selection will lead to unclear opening and yarn breakage problems.
05
Same specifications, different penetration numbers (two-entry reed and three-entry reed, especially the plain weave style are different).</p
