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Causes of card cloth injury and management measures

The main reason is that there is wire in the cotton roll or cotton layer, which is hard and miscellaneous;

2024

Guidelines for the configuration of the number of process lanes in the parallel, roving and spinning processes.

In the general combing system, the number of process lanes for merging and roving shall follow the "odd number criterion", I .e. the number of equipment lanes between carding and roving processes shall be configured according to odd numbers, such as "two parallel lanes and one roving". Since the back hook fibers are mostly in the carding sliver (about 50%), many back hook fibers can be straightened during drafting on the spinning frame after adopting the "odd number criterion. Rotor spinning generally uses two parallel process. In order to improve the quality of polyester-cotton blended yarn, a polyester pre-drawing is often used to reduce the unevenness of the weight of the polyester strip, improve the accuracy of the blending ratio, and improve the straightening parallelism of the fibers in the polyester strip. After combing, the cotton sliver can remove lint and knots, straighten the fibers, and make the yarn smooth and clean. Then mix the polyester sliver and the cotton sliver three times to ensure sufficient mixing. Sometimes, in order to mix well, the process of "three parallel strips and one roving" is also used.

2024

Production Points of Jet Vortex Spinning Lyocell Polyester DTY Core-spun Yarn

The traditional ring-spun core-spun yarn has certain technical defects, which are prone to poor coating and exposed core yarn, resulting in uneven dyeing and coloring, affecting the processing of the following process and affecting the cloth surface effect in serious cases. The rapid development of air-jet vortex spinning provides technical conditions for completely solving the problems of poor covering of core-spun yarn and exposed core yarn. It is found that if the proportion of core wire is controlled below 20%, the phenomenon of core wire exposure can be almost eliminated. Taking the air-jet vortex spinning lyocell 18.5tex (polyester DTY33.3dtex/36F) core-spun yarn as an example, the main points of its production are introduced.

2024

Characteristics of Textile Machinery

Another feature of textile machinery is the high repetition factor of the same part of each machine. Take the spinning frame as an example. Each spinning frame has 400 spindles, and 400 identical collars and spindles are needed to spin 400 yarns at the same time. As for knitting machines, the number of stitches is even greater. Each high-speed warp knitting machine with a working range of 6.6m requires 7280 slot needles. The machinery factory that produces these parts needs to design corresponding tools, fixtures, molds and even special multi-station automatic machine tools or special assembly lines according to the parts batch to ensure the high efficiency, high quality and low cost of these parts production.

2024

How does the reed machine operate? What are the requirements for the environment?

The reed machine requires two people or more to operate. Do not operate alone, so as to avoid personal injury or machine damage caused by the tilt of the vehicle during the implementation process.

2024

Some common sense of textile machinery

The pollution caused by textile machinery in use mainly includes noise, dust, toxic and harmful gases and waste water containing harmful substances. There are two reasons: equipment factors and process factors. Noise is a kind of mechanical vibration wave with air as the carrier. Most of the workshops in the textile factory, especially the weaving workshop, have a lot of mechanical noise.

2024

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