The comparisons of fabric processing structure characteristics of knitted fabric and woven fabric
Due to the different knitting or weaving methods, knitted fabrics and woven fabrics present their special features in the processing technology, the structure of cloth, finished product usage. Here are some comparisons between them.
The composition of fabric structure
Knitted fabric is knitted in the following steps. First, yarns are twisted into loops in a certain order. Then the loops are bunched and knotted to form fabric. The process of yarns to form loops can be done in horizontal or vertical direction. The horizontal knitting is called weft knitting fabric, and longitudinal woven is called warp knitting fabric
Woven fabric. Woven fabric is made of two or more than two sets of perpendicular yarn interwoven as weft and warp in 90 degrees. Longitudinal yarn is called warp yarn while the transverse ones are called weft yarn.
The basic unit of knitted fabric
Knitted fabric. Loops are the smallest basic units of knitting fabric. And the loops are consisted of needle loop and extensive line which present a curve in space.
Woven knitted fabric. Every intersection between warp yarn and weft yarn is a stitch point, which is the smallest basic unit of woven fabric.
Knitted and woven fabric properties:
Knitted fabric. Because the loop is formed by yarns twisted in space. Each of the loops is consisted of one yarn. When the fabric is affected by external tension, such as longitudinal tensile, the curve of the loop would change and its height would be also increased while its width decreases. But if the tension is Transverse tensile, the conditions will be vice verse. The loop height and width can be interchanged obviously. Therefore, knitted fabric has large extensibility.
Woven fabric. The interwoven positions between weft yarn and warp yarn is curve, and the curve is appeared perpendicular to the fabric position. The curve degree has relations with weft and warp yarn mutual tension and weft yarn rigidity. When the woven is affected by external tension, such as longitudinal tensile, the warp tension would increase while the curve degree decreasing. But the warp yarn curve degree increases. If the w longitudinal tensile does not stop, the warp yarn would completely stretch straight and the fabrics present transverse contraction. When the woven fabric is affected by external tension, such as transverse tensile, the weft tension would increase, the curve degree would decreases while the warp curve degree increase. It the transverse tensile does not stop, the weft yarn would completely stretch straight and the fabrics present transverse contraction. The difference of knitted fabric and woven fabric also lie in that the weft yarn and warp yarn of woven fabric can not interchange to each other.
The characteristics of the fabrics
The knitted fabric can extend in every direction. And it has good elasticity. Because the knitted fabric is formed by cavernous loops, it has excellent permeability. Besides, it is soft to touch.
Woven fabric. Because the weft and warp extension have little relation with weft and warp contraction, and they don't interchange to each other, so the fabric is generally very closely and very hard.
The fabric physical mechanical
Knitted fabric. Knitted fabric physical mechanical includes longitudinal density, horizontal density, square meter gram weight, extension, and elasticity, fracture strength, abrasion resistance, crimping, thickness, decoherence, contractility, coverage, volume density.
woven fabric, woven fabric physical machinery include the yarn density of warp and weft yarns, cloth front and back , clockwise and counter-clockwise direction of wool, fabric coverage.