Yarn Package Dyeing Machine Dyeing Solution Circulation Flow Control

The level of package dyeing depends to a large extent on the flow selection of the main circulating pump. For the selection of this parameter, the early Yarn Package Dyeing Machine relied on experience to meet the minimum flow requirements to avoid the color difference between the inside and the outside of the package. As the principle.

Due to the diversification of yarn varieties, the flow rate required by different yarn types is very different, so the fixed flow rate brings some disadvantages. For example, the flow rate of dyeing pure cotton yarn is larger than that of dyeing polyester-cotton blended yarn. Under the condition of meeting the flow rate of polyester-cotton blended yarn, the inner and outer color difference of the pure cotton yarn may appear; and if the flow rate of pure cotton yarn is met, the polyester-cotton blended yarn may also be deformed or fluffed.

The selection of flow rate is also related to whether the yarn is ultimately used for knitting or woven. Practical experience shows that the flow rate selected for knitting of the same kind of yarn is larger than that used for woven fabric. If the flow rate is not selected properly, it will not only affect the dyeing quality, but also cause a certain amount of energy waste. Therefore, the flow must be controlled to ensure that it can be achieved under any conditions (that is, the change of yarn type and the change of loading capacity). Given a reasonable flow rate, the so-called synchronous dyeing can be realized.