Analysis Of Bamboo Fiber Vortex Spinning Process

In the production of vortex spinning bamboo fiber yarn, the quality of carding sliver has obvious influence on the structure and performance of vortex yarn. In the light of Bamboo fiber Performance and the technological requirements of vortex spinning are discussed. The configuration of Carding Clothing, the speed of stab roller, the distance between the thorn roller and the cotton plate, the speed ratio between the cylinder and the doffer, and the relative humidity are analyzed. The quality of bamboo fiber vortex spinning can be improved by increasing the uniformity of fibers and reducing crooked hooks and neps.

bamboo fibre It is a new type of regenerated cellulose fiber made from bamboo pulp. It has the characteristics of natural antibacterial property, good air permeability, unique resilience, instant water absorption and water shrinkage resistance, and strong longitudinal and transverse strength. It integrates the advantages of natural fiber and artificial fiber, and is an environment-friendly fiber. We made use of vortex spinning to produce bamboo fiber yarn. According to the characteristics of bamboo fiber and the technological requirements of vortex spinning, the influence of feeding fiber rod on the quality of vortex spinning was tested and analyzed. It was found that reasonable selection of carding process is the key to improve the quality and rate of vortex spinning.

　　 vortex spinning The mechanism is that the fiber bar is drafted to form a fiber bundle. The fiber bundle is twisted under the vortex controlled by the vortex under the steady swirl of the nozzle, and then expanded by the twisting and rubbing of the hollow spindle. The twisting effect of the outer wrapping fiber and the yarn core fiber is completed, and the yarn has unique internal and external structural characteristics. The outer structure is similar to the ring spinning, the outer wrapping fibers are spiral, forming twist with the twisting yarn core, compared with the real twist yarn, the wrapping fiber is relatively few and has the straight winding situation. The arrangement of the inner core fibers directly affects the yarn strength, such as the directional distribution of fibers, the number of fibers that bear stress in the unit section, the strength of the yarn and the probability of details, and the breaking strength of yarn. If there is more fiber crooked hooks and neps in vortex spinning, the yarn core fiber orientation is poor. It will produce strong weak rings and details. The short fiber content will result in the loss of fibers in vortex spinning process, resulting in the decrease of the breaking strength of vortex yarn. It can be seen that the uniformity of fibers, the number of crooked hooks and neps directly affect the yarn structure and performance of bamboo fiber vortex yarn, and the quality of fiber rods mainly depends on the combing and transferring of fibers in carding process.

2 raw material properties and Do spinning Technological process

Two point one Bamboo fiber performance

The fineness of bamboo fiber is 1.67 dtex, the length is 38 mm, moisture regain is 10.5%, breaking strength is 4.35 cN/dtex, elongation at break is 20.3%.

2.2 process flow

2.3 quantification of each process

　　 Bamboo fiber The number of vortex yarns is 14.7 tex, and the spinning processes are as follows: opening and clearing 395g/m, carding sliver 18.84 g/5m, head 17.85 g/5 m, two and 16.6 g/5 m.