The simplest of the crossings. In the screen, the warp yarn passes under the weft, then passes over in the next and so on, generating low flow fabrics and clogging resistance. This type of fabric has strong retention capacity and needs a great finish for a good residue detachment.
Sateen is a type of crossing where 7 warp yarns pass under one weft yarn and so on. This evolution causes the fabric to have two very distinct sides. The greatest amount of warp yarns on one side of the fabric cause a very smooth surface, especially when the monofilament yarn is used. It generates fabrics of high flow and resistance to clogging. Average retention capacity and excellent residue detachment.
Twill is one of the most used crossings in textile mills. Its most known design is the 3x1 where the warp yarn goes under 3 weft yarns, then under one yarn and so, forming a diagonal pattern. There are other types of evolution in twill such as 2x2, 6x2, 4x4 and others, which generate average flow and retention fabrics. These fabrics have average resistance to clogging and good residue detachment when it has a good quality finish.
Unit yarn. It generates fabrics with lower clogging margins, higher flow and productivity. When calendered it forms a super smooth filter surface, ensuring a dry and automatic residue detachment.
They are filaments united continuously in rows and may have up to 200 small united filaments. They generate more closed fabrics with good retention capacity and abrasion resistance. They have medium flow and residue detachment.
It is a fiber prepared with the union of small multifilaments mechanically cut and assembled to form a single yarn, a process that mimics natural fibers such as cotton. These fabrics offer low flow and strong retention capacity. They have poor resistance to clogging and require a skilled finishing process in order to generate a good residue detachment.
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