coloryarn

The spinning speed of the vortex spinning machine is 100

When the air flow that rotates Polyester Sd Yarns Suppliers reaches the core tube, it merges with the fibers entering the cotton pipe, forming a condensed fiber ring along the inner wall of the vortex tube, and steadily rotates around the axis of the vortex tube at high speed to twist the fiber into a yarn. The yarn count range is limited to medium and low count yarns, which is suitable for raising products. Due to the elimination of the roving frame, spinning frame and automatic winder to reduce the area and labor and investment, it has its unique advantages, and it will further replace ring yarn and air-jet yarn in the field of knitting yarn. Fast speed and high output The spinning speed of the vortex spinning machine is 100_200m / min

, and the practical speed is generally 100_160m / min. The yarn is continuously drawn out from the yarn guide hole by the drawing roller and wound into a package. Because vortex spinning has no high-speed rotating parts, there is no problem of high-speed bearing lubrication, less wear and tear, less noise, and easy maintenance. The outside air enters the vortex tube along the air inlet and generates a vortex-like air flow. 1) The range of suitable raw materials for vortex spinning is limited to short chemical fibers and medium-long fibers. [What are the advantages of vortex spinning] 1.

Therefore, its spinning speed is unlikely to have a breakthrough. 4) Due to poor fiber straightness, the coagulation process of vortex spinning is too short, which makes the structure of the yarn loose, and the strength of the yarn is low, so its products are also limited, only suitable for chemical fiber raw materials and spinning thick size Knitting yarns or thick pile yarns and other products that do not require high strength, or core-spun yarns with filaments as the core. Because the vortex tubes are stationary and have no high-speed rotating parts, the joints are very convenient and simple. No special requirements for front spinning equipment, temperature and humidity.

Fibers is closely related to the strength of the yarn and the sliver

When adjusting the wholesale DTY yarns, the newly added dyes may cause a ’jumping light’ phenomenon. Different consumer groups of fabrics have different color and light preferences. In addition, the compatibility of dyes should also be considered, such as: Ciba Red C-2BL used with yellow CR-01, its light fastness decreases, but when used separately, the light fastness is very good. When the customer reflects that most of the samples in a swatch are darker, it should be considered that the customer may be a double-layered sample, especially a thin, transparent fabric, and the stack will look darker.

If there is a dye with poor fastness in a formula, the fastness of this shade will decrease. Light-sensitive and heat-sensitive dyes are used for the main color proofing, which may cause large production color cloths to be stacked with color files and even irreversible in severe cases, such as olive green R, yellow C-2R and other dyes. The color quality control procedure of textiles is based on the colorimeter data. When proofing such dyes, the trend of the dye’s stable color light should be considered, and the intention is to reverse Deviate a littleThe degree to which the cotton bundle on the carding machine is separated into single fibers is closely related to the strength of the yarn and the sliver; The effect of removing impurities largely determines the neps impurities and sliver of the yarn; the carding machine has the highest rate of noil in each stand-alone carding system, and the noil contains a certain amount of spinnable fibers.

The function of the coiling device is to pull the sliver output by the large pressure roller through the small pressure roller, and then put it in the can by the coiler. The main function of the spur roller part is to use the serrations on the surface and the serrations on the surface of the combing board of the spur bar to pierce and comb the cotton layer, and remove the impurities and linters. (3), cotton stripping and loop part

The function of the cotton stripping device is to strip the fiber layer condensed on the surface of the doffer into a net. Generally, its technological process and function are mainly manifested in the following aspects: (1), cotton feeding and spur roller part The main function of the cotton feeding and squeegee roller part is to feed the cotton layer into the machine and hold and comb the cotton layer. (V). According to the spinning process, carding is an important process. The relationship between the carding machine and the carding quality. 3. Barbed roller The carding function of the barbed roller

The operator should strictly and thoroughly clean the top comb

If the entire cylinder is poorly cleaned, one is that the speed of the brush is slow, which is caused by the loose triangle tape of the brush; the other is that the diameter of the brush becomes smaller with the extension of the running time, and the brush is inserted into the cylinder The reduction of the depth reduces the cleaning effect on the cylinder.

Therefore, the reduction of neps has a direct relationship with Xilin. The forest is in a good cleaning state. 3) The teeth of the top comb need to be kept intact, no broken needles or parallel needles are allowed, and they should be replaced in time. 8 Conclusions The control of combed neps is a systematic project, which has many influencing factors. At the same time, the operator should strictly and thoroughly clean the top comb in accordance with the requirements to reduce the phenomenon of pin tooth hanging flowers. If inlays are found in the cylinder, the cause should be identified and eliminated.

Therefore, the top comb is pulled out of the cotton layer at a fast speed.. However, these small cotton knots are difficult to be completely removed due to the limitation of the cylinder top comb model. 2) In order to pursue the output and increase the speed of cylinders, some enterprises have brought an increase in neps. 1) To reduce the increase of neps in the preparation process, a reasonable draft multiple is required, which is generally controlled at about 8 times. The nipper holding the cotton layer is combed by the cylinder from front to back, and gradually removes debris such as lint, neps and impurities. It is responsible for combing the front end of the fiber bundle, straightening the fibers and removing the short fibers and neps impurities

. Therefore, it is wholesale DTY yarns to reasonably adjust the separation and joining time according to different fiber lengths to reduce the occurrence of neps at the tail of the tuft. Through a large number of experiments, it has been proved that the sliver can be increased by 10% to 20% and the impurities can be reduced by 6% to 10% after the sliver is processed by a sliver and a doubling machine. 1 Influence and control of combing preparation process on neps

Fiber is closely related to factors such as the relative humidity

If the moisture regain is too small, the fiber processing is not easy to entangle, and the hairiness increases.8%, and the moisture regain of the sliver wholesale DTY yarns during the carding process is generally lower than the combing process by 0. If the moisture regain is too high, it should not be carded, and the uniformity of the sliver is affected; otherwise, the fibers are easily damaged, and flying and short fluff are increased.

The moisture regain of fine yarn will affect the yarn hairiness, strength and sliver level; the moisture regain of fine yarn is too high, although the yarn strength is increased, but the neps are also increased. The moisture regain must be controlled within a certain range through the humidity environment to facilitate combing and processing. Spinning process In the spinning process, the moisture regain is too large and the drafting force is large.3% to 0.he moisture regain of raw cotton fiber is closely related to factors such as the relative humidity, temperature, ambient air velocity and raw material properties of the workshop, especially the relative humidity is the main factor affecting the moisture regain.4%. For the carding couple, the cotton roll has no moisture absorption and moisture regaining equilibrium time.0% and 7.

The ard end?cannot be opened due to drafting. It is easy to wrap around the rollers and rubber rollers. After the spun yarn is rubbed at high temperature, the temperature of the fiber rises, and there is a tendency to exotherm and absorb moisture, but due to the tight winding, the heat is mainly lost during the unwinding process.2%, but in actual control, in order to increase the strength, the winter roving moisture regain is controlled between 7

. The fiber temperature rises due to the movement of the sliver and the sliver, and when the fiber temperature is higher than the temperature in the workshop, there is a tendency of exothermic isothermal and moisture absorption balance. When the sliver moisture regain is too low, the pre-rolling is until the sliver is hygroscopic, and the combing is still in the hygroscopic state, which is not conducive to processing.

Brand new equipment that has just been bought may rust within a few years

The effect of humid air on textile equipment Textile workshops often have high humidity. 1. The pipeline can adopt solid adsorption drying measures. 5. If there is a high humidity area, it can also be installed. The dust contained in the air does not only affect the air compressor and the air compressor. 2.

The valve and even the screw cause erosion and wear, which increases the friction between the two, reduces the compression ratio, and affects its operating efficiency. 4. Finally sprayed from the nozzle. The influence of wet air on the air compressor From the analysis above, it can be seen that after the humid air in the atmospheric state enters the air compressor, the condensate produced by the saturation of the back of the equipment is usually not easy to discharge, which will affect the sliding of the screw air compressor. If it is mixed with condensed water, it will accumulate inside the air compressor system or pipes, breeding bacteria, endangering the health of workers, and even entering the workshop with compressed air, causing product fouling and affecting product quality.

If they are not maintained often, brand new equipment that has just been bought may rust within a few years, which is not only related to the external environment that runs year round. In some places with severe air pollution, the air is directly sucked into the air compressor without being treated by the filter.. It is also related to the corrosion caused by the spray of condensed water in the compressed air. Therefore, when designing, it is necessary to install a regular drainage and exhaust device during the transportation of the pipeline or at the tail end to reduce the occurrence of this phenomenon.

Dehumidifier unit to reduce the moisture content High Intermingled Yarns Suppliers in the air. The transmission process of wet air in the compression system. In areas with severe air pollution, the impact of untreated air on textile production. 3, the impact of wet air on the air compressor pipelines Air compressor pipelines are generally not insulated, run under high pressure all year round, and some places often can hear the noise caused by water hammer and vibration, what causes it What?

It is generally considered that when the yarn fineness

It is necessary to control the distribution of immature fibers before raw cotton enters the Kaiqing cotton production line to reduce the immature fibers in the mixed Proportion and difference in cotton. (4) In addition to the average strength and uneven strength, the strong factor that produces warp and weft yarn stops is an important factor.

Therefore, we must strive to open the short process of the cotton cleaning line, optimize the process of removing impurities and produce neps, and strive to increase the number of neps and lint in the cotton. (6) After long-term practice and inspection of digital accumulation, the standard for neps control is as follows: raw cotton 200 grains / g Open cotton 100 g / g Carded cotton 80 grains / g Raw cotton 20 g / g raw cotton

The quality of neps in general is 200 grains / g, the lowest is 100 grains / g and the highest is 400 grains / g. With a certain amount of neps. New carding machines such as DK803, DK903, DC03 can also detect the dynamic changes of neps online. It is generally considered that when the yarn fineness is only 40% of the normal yarn, such a weak ring of details will inevitably cause a break and cause a stop. Other processes such as draw frame, roving and other neps quantitative changes are not significant, but all increase slightly. The distribution and content percentage of immature fibers when raw cotton is mixed with cotton should be controlled. The new carding machine is equipped with a fixed cover,

which improves the Polyester Color Yarns factory function and carding effect of the cotton feeding section. (4) Carding machine is the main process of reducing neps. (7) Due to the uneven hairiness distribution and the large spindle difference, the fabric will have flaws in the rungs caused by hairiness. (6) The advanced final draw frame is equipped with an online Uster self-levelling and monitoring system, which can monitor the draw level of the draw frame online. (2) At present, a lot of Kaiqing cotton production lines are equipped with technology to remove foreign fibers.