Sd Yarn

The weight of the roving is normal after tracking, and there is no abnormality in the corresponding spindle. According to the quality problems that occurred, the following aspects were investigated: 1. The size of the upper and lower aprons, upper pins, and spacing blocks; 4. Since the weight of the roving has not changed, the total draft multiple of the spun yarn is only 11.

The degree of attenuation and buffering of the fast-rotating torque (equivalent to the disassembly torque) transmitted by the middle roller jaws to the rear roller through the whisker depends entirely on the degree of easy stretching of the whisker. Various considerations when designing the drafting process must not violate the drafting principle. The greater the drafting force in the rear zone, the harder it is for the whiskers to be stretched, and the more effectively the forward torque is transmitted to the rear roller. In this case, you can appropriately enlarge the roller gap and increase the roving twist factor to increase the average draft force and reduce the fluctuation of draft force. It is necessary to keep the sliver continuous, stable and proper twist to improve the sliver of the finished yarn. (2) Increase the twist of the roving so that the whiskers entering the drafting zone of the spun yarn retain proper twist, thereby maintaining a better roundness of the whiskers.

The diameter and position of the front and rear rubber rollers; 3.), the roving twist can be appropriately increased without affecting the production. Spinning principle and technological analysis The essence of drafting is the process of increasing the distance of the fibers in the whisker and redistributing the fibers in a longer position along the axial direction. If the back draft is large, the number of fibers entering the front zone is even less, which is not conducive to fiber control. 1.

A company produces Sd Yarn polyester Dahua T21S all year round, polyester with 100% Yizhen Dahua 38mm×1. However, a serious quality problem occurred in the production process, and the user's opinion was great. Replacement of a new cradle; 6.35. In this process, the fibers in the sliver must be well controlled.56dtex, the quality is relatively stable.25, and the data returned to normal after the test. Of course, the roving weight should be set reasonably when making coarse yarn. Recently, I received orders for T10S and T8S. Due to the small amount, the roving weight remained unchanged at 6

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