Textiles or fabrics are flexible materials composed of a network of natural or artificial fibers (yarns or threads). During the dyeing and printing process, hazardous chemicals and dyes are used, and common circulating media are liquids (water, heat transfer oils, glycols) that do not contain particles or fibers, etc.
In order to ensure no color difference, the amount of pigment must be accurately measured and mixed, using QEEHUA’s metering pump, which can effectively control the amount of pigment.
The printing and dyeing wastewater mainly contains dyestuff, slurry, auxiliaries, oil agent, acid, alkali, fiber impurities and inorganic salts, etc. It is characterized by complex composition, high content of hard-to-degrade organic matter, high color, high alkalinity, large volume of water and poor biochemical properties. The wastewater is transported to the wastewater tank through centrifugal pump for multi-procedure treatment, and the chemicals are dosed to the sedimentation tank by metering pump to finally reach the discharge standard.
Printing and dyeing industry processes focus on.
Pigment dosing
Wastewater treatment
QEEHUA pump series commonly used in the printing and dyeing industry
We are a manufacturer of stainless-steel centrifugal pumps. Pumps are made of high-quality materials, stable in operation and robust in design.
Stainless steel centrifugal pumps are suitable for conveying organic or inorganic chemical media, petroleum products and corrosive liquids without solid particles in chemical, light industry, printing and dyeing, pharmaceutical, paper making, food and other industrial sectors.
Plastic centrifugal pumps have strong corrosion resistance, good wear resistance, high mechanical strength, non-aging, non-toxic decomposition characteristics.
Widely used in petroleum, chemical, acid, alkali, dyestuff, medicine, paper, electroplating, pickling and other production processes to transport corrosive liquids, especially for strong acid and alkali, organic capacitor and precious liquid transport.
In the printing and dyeing industry, according to the amount of material added and the set color ratio, it is necessary to control the size of the proportional dosage of each chemical solution by metering pump.