Dyestuff industry experts
Home » News

PH value

If you want to know more about the PH value, the following articles will give you some help. These news is the latest market situation, trend in development, or related tips of the PH value industry. More news about PH value, are being released. Follow us / contact us for more PH value information!
  • What is the effect of pH on the levelling properties of nylon?


    When dyeing nylon fiber, when the pH value of the dyeing solution is relatively high, the dye is rarely dyed; when the pH value of the dyeing solution drops to a certain value, the dye starts to be dyed, and soon reaches saturation. Continue to reduce the pH value of the dyeing night , The dye uptak Read More

  • What are the comprehensive reasons for the production of colored flowers in dyeing?


    Unreasonable formulation of the process or improper operation produces color fretting;The process is unreasonable (for example, the temperature rises and falls too fast)Poor operation, knotting during dyeing, and power outage during dyeing;The temperature rises too fast and the heat preservation tim Read More

  • What is the composition of the substitute alkali for reactive dyes?


    The representative product of the substitute alkali for the phosphate system is Alkaflo developed by Sybron. The Morran patent provides a specific method for the substitute alkali for this system, and different raw materials can be used to prepare lye with different pH values. The main components of Read More

  • Which PH value is required for water in dyeing process?


    For reactive dyeing, when the pH value is 7-9, the color difference of the product is normal, indicating that the pH range has little effect on the color difference of the product, and the presence of a small amount of alkali will not change or destroy the chromogenic group of the reactive dye molec Read More



copyright 2020 ©  Hangzhou Tiankun Chem Co.,Ltd