Fabric density refers to the number of warp and weft yarns arranged per unit length in the fabric. The number of warp yarns arranged in a unit length is "warp density", and the number of weft yarns arranged in a unit length is "weft density". If the warp and weft density is large, the fabric will be very tight, thick, stiff, wear-resistant, and firm; if the density is small, the fabric will be thin, soft, and breathable.

In the case of the same fiber raw material and weave structure, if the yarn fineness is the same, the fabric density will be higher and the fabric will be tighter; on the contrary, the fabric will be sparser; but when the yarn is linear density is different, the fabric density will not be practical. Reflects the tightness of the fabric. Therefore, to evaluate the tightness of the fabric, it is necessary to consider the comprehensive index of yarn linear density and fabric density at the same time - the fabric coverage factor.

The size of the fabric density has a great influence on the appearance, weight, feel, strength, thickness, wrinkle resistance, elasticity, abrasion resistance, water permeability, breathability, warmth retention, pilling resistance, and hooking resistance of the fabric. influences. Therefore, fabric density is also an important indicator for evaluating the intrinsic quality of fabrics.

Digital Fabric Pick Counter is used to determine the thread density of woven fabrics and loop density of knitted fabrics. Equipped with a portable high-precision camera to capture and magnify pictures of fabrics, the number of threads or loops on captured pictures can be counted easily on the screen of the computer by the software.