The influence and polyester raw materials manufacturers of combing cylinder on neps. 1) The noil rate should be determined according to the quality of the product, combined with the quality of the lint, neps and combed sliver. , But its effect is very large. Due to the limitation of the height of the top comb, the bottom fiber cannot be effectively combed.5 and +0.5 tex yarn, the noil rate is between 14% and 18%, and 26 teeth / 10 mm can be selected; for spinning below 10 tex yarn, the noil rate is between 10% and 25%, and 28 teeth / 10 mm can be selected ~ 30 teeth / 10 mm top comb. In addition, when the speed of the brush is constant, the diameter of the brush decreases and its linear velocity also decreases accordingly. Proper selection can reduce neps.1 mm.

The cleaning interval is generally set to 30 minutes, and each cleaning time is set to 10s. 4) In order to improve the carding effect, the automatic deceleration device of the comber is used reasonably. This not only stabilizes the rate, but also produces junctions and impurities. It is known through experiments that when the top comb is inserted at the same depth and the noil rate is equal, the top comb size has a certain relationship with the neps. . 6

Effect and control of the separation of the comber on the neps When the separation and the end of the combing, we found that the end of the comb that was combed by the top comb had more neps and large neps. Prevent crowding and reduce the increase of neps.5. 3) The surface of the rubber roller should be smooth, no concave core, no bending, and flexible rotation, and solid pressure. In the production process, we can turn the nipper to the front position, open the adjacent separation rubber roller pressure parts, and observe whether the depth of the top comb inserted into the tuft is moderate, otherwise we need to adjust.

The larger the noil rate of the same cotton roll, the less neps are present in the combed sliver, but the number of effective fibers in the noil rate should be considered. However, in actual production, the quantitative design of small rolls should not be too large, generally in the range of 60 g / m to 65 g / m, mainly considering the load on the cylinder needles and the relationship between the height of the top comb teeth and the thickness of the cotton layer.

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