Introduction of package dyeing machine

The levelness of the cheese yarn depends largely on the flow selection of the main circulating pump. For the selection of this parameter, the early cheese dyeing machine relied on experience to meet the minimum flow requirements. The color difference between the inside and outside of the cheese in 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. Meeting the flow rate of polyester-cotton blended yarn may cause color difference between the inside and outside of the pure cotton yarn; and meeting the flow rate of pure cotton yarn may also cause deformation or fluffing of the polyester-cotton blended yarn.

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 dyeing of the same type of yarn for knitting is larger than that used for woven weaving. 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.