The development of the viscose fiber industry has correspondingly increased the demand for cotton pulp, and the industrial grade sodium hexametaphosphate manufacturer have learned that the current raw materials for cotton linters are in short supply and increasingly inferior.

Ash is one of the important indicators to measure the quality of pulp, and the level of ash directly affects the stability and improvement of subsequent process production. The ash in the pulp refers to the residue of the pulp sample burned in a high-temperature furnace at 75°C. It mainly includes silica, calcium, magnesium, iron plasma. The silica and calcium oxide in the pulp produce insoluble calcium silicate and deposit on the surface of the filter cloth, which seriously deteriorates the filtering performance of the viscose.

The calcium in the pulp can also combine with the sodium carbonate in the impregnating solution to form an insoluble double salt, which affects the filtration performance and leads to poor spinnability. If there are more iron ions in the pulp, when the alkali cellulose and sulfide react, the color of the viscose liquid will be darker, and the color of the spun silk will be easy to turn yellow. If the iron content of each batch of pulp is large, it will affect the normal speed of aging, make the viscosity of the viscose unstable and affect the quality of the viscose. In order to improve the quality of cotton pulp, sodium hexametaphosphate can be used as an auxiliary agent to remove ash and iron content of cotton pulp. Adding sodium hexametaphosphate after pickling the pulp can complex the metal ions in the cotton pulp, and the effect is good.

Chuandong Chemical, the high-quality sodium hexametaphosphate manufacturer, is an ideal choice. Chuandong Chemical Group adopts thermal production technology, which has high purity, less impurities and more stable quality. There are strict testing indicators for the chain length of sodium hexametaphosphate products, and the quality is quite stable. It is widely recognized in ceramics, refractory materials, printing and dyeing, water treatment and other industries.