[Fabric Knowledge] Several common concepts of gray fabric
1. Warp direction, warp yarn, warp density – the length direction of the fabric; the yarn in this direction is called Warp yarn; the number of yarns arranged within 1 inch is the warp density (warp density);
2. Weft direction, weft yarn, and weft yarn density – the width direction of the fabric; the yarn in this direction is called the weft yarn, and the number of yarns arranged within 1 inch is the weft density (weft yarn density);
3. Density – used to indicate the number of yarns per unit length of woven fabrics, generally the number of yarns within 1 inch or 10 centimeters. my country’s national standards stipulate that the number of yarns within 10 centimeters is used. Density, but textile companies are still accustomed to using the number of yarns within 1 inch to express density. For example, the commonly seen “45X45/108X58” means that the warp and weft yarns are 45 respectively, and the warp and weft densities are 108 and 58.
4. Width – the effective width of the fabric, generally expressed in inches or centimeters. Common ones are 36 inches, 44 inches, 56-60 inches, etc., which are called narrow width, medium width and wide width respectively. Fabrics higher than 60 inches are extra wide and are often called wide fabrics. The width of extra wide fabrics in my country today can reach 360 cm. The width is generally marked after the density. For example, if the fabric mentioned in 3 is added with the width, it will be expressed as: “45X45/108X58/60”, which means the width is 60 inches.
5. Gram weight – The gram weight of the fabric is generally the number of grams of fabric weight per square meter. The gram weight is an important technical indicator of knitted fabrics. Woolen woolen fabrics usually also use the gram weight as an important technical indicator. The weight of denim fabric is generally expressed in “ounces (OZ)”, which is the number of ounces of fabric weight per square yard, such as 7 ounces, 12 ounces of denim, etc.;
6. Yarn-dyed weaving – refers to the process of dyeing yarn or filament first, and then using colored yarn to weave cloth. This kind of fabric is called “dyed weaving cloth”, and the factory that produces yarn-dyed cloth is generally called “dyed weaving cloth”. For dyeing and weaving factories, such as denim and most shirt fabrics are dyed fabrics.
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