Combing Problems And Solutions Of Fine Tex Fiber
In recent years, the wide application of fine fiber has been adapted to the trend of fiber development. Fine fiber is different from conventional chemical fiber, its linear density is large, its surface area is large, its moisture absorption and permeability are greatly improved, even far superior to cotton fiber. The fine tex fabric is light, soft, smooth, and has good drapability. It is very suitable for making high grade fabrics such as light underwear and suede. Because fine fiber has the characteristics of surpassing General chemical fiber, it is well received by the strong cotton spinning enterprises. It is used for developing new products, expanding the market and enhancing the competitiveness of enterprises.
However, due to the limited structure of the fine differential fiber, its spinnability is poor. In the carding process, it is easy to get entangled flowers, cotton net, static electricity, fiber damage and so on. In order to solve these problems, it is also very important to optimize carding equipment and reasonable allocation in addition to adding proper amount of oil to the product and adopting the technology of enlarging carding spacing, light weight and low speed.
Carding problems and cause analysis
Fine Tex Fiber is small in rigidity and large in bending deflection. The carding cloth is easy to twist in the carding process. Due to the increase of the surface area of the unit mass, the friction probability between fiber and fiber and needle clothing increases, the static charge increases sharply, and the transfer rate between fibers decreases, resulting in deterioration of the quality of the sliver and the increase of neps and cotton balls in the cotton net.
There is a poor connection between fine and special fibers, and the problem of breaking edges, disorderly nets and dropping nets of cotton NetEase appears.
The breaking strength of Fine Tex Fiber is much smaller than that of conventional fiber. It is easy to deform and break down to produce short fiber, which not only affects yarn strength, but also increases yarn hairiness and neps and makes the sliver worse.
technical measures
In order to solve the electrostatic problem of fine fiber, the raw materials should be pre treated, such as adding proper amount of water and antistatic agent, and placed in equilibrium for more than 24 h under production conditions.
Fine fiber is thin and long, pulse combing force is large and easy to fill. To ensure adequate carding, minimize fiber damage. Cylinder clothing must meet certain teeth density, and the surface roughness and sharpness of the teeth should meet the requirements.
Due to the high consistency of the length of the chemical fiber, there is basically no impurity except a small amount of hard wire, silk and rubber blocks. In order to reduce the short fiber in the carding process, the speed of the cylinder and the roller should be set at a low level.
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