Key Points For Dyeing Of Overflow Jet Dyeing Machine

China started in the 60s of last century, especially with synthetic fibers. Polyester fiber As a result of its growing development, it is obvious that it will not be able to meet the needs of the market by using carrier dyeing or importing colored cloth. Therefore, since the late 70s, polyester and its blended fabrics have been dyed by high temperature and high pressure overflow jet dyeing machines. First of all, it is a pot like dyeing machine, which is collectively referred to as O- machine. Almost at the same time, coupled with the vigorous development of township enterprises in China at that time, a number of printing and dyeing machinery factories in Wuxi's former continents began to imitate the overflow jet dyeing machine, which indeed made a great contribution to the development of China's dyeing and finishing industry. It can be said that overflow jet dyeing machine is a widely used type of batch dyeing and finishing project.

After more than 20 years of repeated practice, it has been proved that both imported and domestic machines play a positive role in dyeing and finishing of polyester and its blended fabrics. Because the overflow jet dyeing machine can process most of the woven / knitted fabrics, so the share of the equipment in the dyeing and finishing enterprises is about 60%. In other words, most of the textile products exported or domestic are from jet-overflow dyeing machine Dye it up. Up to now, the status of Lixin and two dyeing machines in the dyeing and finishing industry accounts for about 50%. Especially in the knitting dyeing industry, the standing temperature overflow machine has accounted for an absolute majority. The quality of the high temperature and high pressure overflow jet dyeing machine is generally good. I think dyeing machines are similar to dyes in a way to ensure production.

Of course, to a certain extent, it is not absolute. As long as we master its basic performance, we can still get better products. The industry has the following words: the dyeing and finishing enterprises in Zhejiang are all well equipped, but the grade of processed products is not high; while the Jiangsu's facilities are poor, the grades of processed products are not low. Therefore, it is necessary to carry out technical exchanges in the industry and improve the understanding and utilization of dyeing and finishing equipment.

Staining. Control of bath ratio: according to the product manuals of printing and dyeing machinery manufacturers, the smaller the bath ratio seems to be, the smaller the attraction of customers. In fact, no matter what overflow ratio of the overflow jet dyeing machine is not stipulated by the machinery manufacturers, it should be determined by the dyeing and finishing enterprises according to the processed products in the process of making the process, such as the weight of 60~100g/m2 light weight polyester fabric, the bath is more than the general control. Between 1: 12~1: 15, because the size of the lightweight fabric is large and the relative length is long, the bath ratio is larger. Conversely, if the 250g/m2 weight of the polyester / Cotton (viscose) blended fabric is bathing, the bath ratio should be controlled at 1: 10.

The weaving point often causes slipping, but on the contrary, it is easy to produce colored flowers. Textile It is also necessary to pay attention to overloading. It is not only due to the long accumulation time of fabric in storage tanks, but also unavoidably caused by uneven heat in the process of fabric retention, and often causes fabric tying and blocking due to the flow of dye in the machine. At present, the minimum bath ratio of overflow jet dyeing machine is 1: 6, most of which are 1: 10. Generally speaking, the quality of dyeing can not be viewed in isolation from the size of bath, and more importantly, the design of the whole machine is reasonable, and its mechanical controllability depends on it. From the perspective of dyeing and finishing, whether the bath ratio should be set properly or depends on the overall dyeing quality.