1. In the weaving process, the cloth edge must be tightened at both ends of the weft yarn to bear the strength of the temple, so that the cloth surface of the woven fabric will not produce excessive weft shrinkage. In addition, the selvage also has the functions of reducing the warp warp at the side, improving the friction of the warp at the side and the reed teeth, reducing the rate of breakage of the warp at the side, increasing the strength of the side, keeping the cloth surface flat and having the same width. It is easier to make the whole winding into shape, which is convenient for the processing of subsequent procedures.
2. In the process of dyeing and finishing, the edge of the woven fabric is also subject to the tension of the cloth clip or needle punching, especially the cellulose fiber fabrics such as cotton and linen. It has to withstand a lot of tension during the finalizing and tentering process after mercerizing. After all, a firm, smooth, and properly elastic side structure is a necessary condition for finishing. If the edge design of the woven fabric is unreasonable, the fabric will have loose edges, broken edges, tight edges, curled edges, etc., and a lot of broken edges will occur in serious cases, and even finishing processing will not be carried out at all. Cause huge losses.
Considerations when making woven fabric edges
1. Width. The side weave is too narrow, the strength is not enough, can not withstand the tension, it is easy to tear the side, can not provide protection; the side weave is too wide, increase the cost of the fabric, under the condition of a certain width will affect the fabric can be cut area. Generally speaking, simply weave the fabric with a smaller width, but the edge width of some same-side, different-side weaves and elastic fabrics with longer floating lengths should be appropriately increased according to the situation.
2. Thickness. The edge thickness of the woven fabric should be as consistent as the body of the woven fabric, so that it is easy to keep the fabric flat, wound, beautiful and evenly stressed.
3. Tightness. The edge of the woven fabric is usually slightly tighter than the fabric body, but be careful not to be too tight. Too tight will affect the finishing, and the edge of the fabric will not be able to withstand large deformations in a short time, and even tear the edge of the fabric, making the whole batch of woven fabrics useless; if it is too loose, on the one hand, it will form a weft shrinkage and form a lotus edge. , On the other hand, it is prone to broken edges during finishing. Therefore, the edge organization density must be greater than the ground organization.
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