The difference between the front and back of the […]
The difference between the front and back of the woven fabric is usually carried out in this order when analyzing the woven fabric: first take a sample, then determine the front and back of the woven fabric, and then determine the warp and weft direction of the fabric in turn. Determine the warp and weft density of the fabric, determine the warp and weft shrinkage rate, measure the warp and weft yarn characteristics (English count), determine the warp and weft yarn raw materials, estimate the raw materials of the fabric, and finally analyze the fabric structure.
First, let’s learn about sampling. According to regulations, when sampling from a whole piece of woven fabric, it should be noted that the distance between the sample and the edge of the cloth should not be less than 5 cm, and the distance between the two ends should be no less than 1.5 to 3 meters on the cotton fabric. Not less than 3m on the fabric; about 3.5-5m on the silk fabric. Not only that, the selected samples must not have obvious flaws, and keep their original natural state as much as possible.
At the same time, the sample size of the woven fabric should also be considered. Generally speaking, the sample of the fabric with simple structure can be smaller, generally 15cm*15cm. For colored fabrics with larger tissue circulation, 20cm*20cm is recommended. For fabrics with large color cycles, such as bed sheets, the area occupied by at least one color yarn cycle should be taken.
So, how to determine the pros and cons of woven fabrics? In fact, the judgment is mainly based on the appearance effect of the fabric. This is because in most cases, the pattern and color of the front side of the fabric are clearer and more beautiful than the back side. Moreover, the front patterns of plants and color-matching patterned fabrics with a striped appearance must be clear and pleasing to the eye.
Or we can also judge based on the edge of the woven fabric. Under normal circumstances, the edge of the cloth is smooth, and the neat side is the front of the fabric. Basically, there are obvious differences between the front and back of most woven fabrics. Of course, some of the front and back sides are very similar. These fabrics can be used on both sides, so it is not necessary to distinguish between the front and the back for this type of fabric.