Buy Fabric Fabric News Various causes of color flowers during dyeing

Various causes of color flowers during dyeing



The reasons are:</p ① Process formulation and operation issues:</p Unreasonable formulation process or improper operation will produce color flowers; </p <br / ② Equipm…

The reasons are:</p

① Process formulation and operation issues:</p

Unreasonable formulation process or improper operation will produce color flowers; </p

<br /
② Equipment problems:<br /
  如分散染料染涤纶后热定形机烘箱内温度不一也易产生色差色花,绳状染机泵力不足也易造成色花等。 

<br /
③Dye problem:<br /
  染料易聚集、溶解度差,配伍性欠佳,对温度、PH太敏感均易产生色花及色差。如活性翠兰KN–R就易产生色花。 

<br /
④ Water quality issues:<br /
  水质不佳,造成染料与金属离子结合或染料与杂质凝聚造成色花,色浅色不附样等现象。 

</p

⑤Auxiliary issues:<br /
  对于助剂问题中,与色花有关的助剂主要有渗透剂、匀染剂、螯合分散剂、PH值控制剂等� The penetrating agent's penetrating power is not enough, which can easily lead to uneven penetration of the dye solution and color blooming, such as loose cotton dyeing, cheese dyeing, and heavy fabric dyeing. The role of the penetrating agent cannot be ignored. Some factories only believe in authentic JFC penetrating agents, but It is not considered that the cloud point of JFC is only 38~42℃. If it exceeds 42℃, its penetrating power will not be exerted, which will cause quality problems. Leveling agents include various types of leveling agents for polyester, cotton, wool, nylon, and acrylic fiber. The quality varies. Leveling agents must take into account the dispersion and solubilizing effect of dyes, the retarding dye migration effect, and the penetration aiding effect. Even the complexation of metal ions in water must be considered Its PH applicability, foamability and other factors that affect the coloring rate, the leveling agent plays an important role in improving color flowers, color spots and other phenomena. The leveling agent of some factories is only a solution of diffusing agent N, but Unexpectedly, the anti-dye aggregation effect of diffusing agent N is greatly reduced at high temperatures. �有的厂选用非离子表面活性剂不适合,造成在浊点以上非离子表面活性剂本身析出,吸附染料而成焦油状物质沾在织物设备上,反而造成质量问题� �螯合分散剂的质量也有关匀染问题,目前在水质越来越差的情况下,螯合分散剂对匀染的帮助更加应该重视� PH control is an issue that factories do not pay much attention to. In some factories, the pH of each dyeing vat is different. In addition, the substitute acid used by some factories has different qualities. For example, it contains phosphoric acid. The pH generated by the third-level ionization of phosphoric acid is uniform. If there are differences, how can we control a uniform pH value? Some factories use pH slip agents, but do not understand the relationship between temperature and time and the pH value generated by the slip agent. Therefore, pH control is impossible to talk about, so color flowers, Color difference phenomena continue to occur

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