What are the comprehensive performance advantages of using sodium hexametaphosphate as an auxiliary in textile printing and dyeing?

 There are many auxiliaries for textile printing and dyeing, but if you want to upgrade textiles to a higher level, you need to use the right auxiliaries. As one of the important raw materials for textile printing and dyeing, sodium hexametaphosphate can be used to improve the quality of textile printing and dyeing, thereby increasing the added value of textiles. What are the comprehensive performance advantages of using sodium hexametaphosphate as auxiliary agent in textile printing and dyeing?


1. As water softener, so that fuel and soap will not precipitate or agglomerate

The pH value of sodium hexametaphosphate is close to neutral, and it can form complexes with calcium ions in hard water to achieve the purpose of soft water. Sodium hexametaphosphate is used as a water softener and can be re-dissolved from the insoluble calcium soap, magnesium soap or magnesium fuel precipitate that has been formed.


In other words, when sodium hexametaphosphate is introduced into the solution, sodium soap can be regenerated. Even when calcium soap or magnesium soap is formed, the clot of calcium soap or magnesium soap will disappear. In the same way, sodium hexametaphosphate can regenerate fuel.


2. Prevent sodium alginate from precipitation and precipitation in case of calcium

Sodium alginate slurry is the most suitable slurry for active fuels, but care should be taken to prevent sodium alginate from infiltrating the calcium in hard water during manufacture to generate calcium alginate.


Therefore, sodium hexametaphosphate must be added to prevent the formation of calcium alginate. Under normal conditions, the amount of 5-10g/l is sufficient, and under special circumstances, it can be increased to 15-20g/l. It can be added when preparing the printing paste or when preparing the original paste.


3. as cooking aid

Nylon twisted yarn (polyamide fiber) is treated with soap before dyeing. When scouring with soda ash, adding sodium hexametaphosphate (about 0.3% of the weight of the silk) can prevent the soap from being consumed by hard water and improve the scouring effect.


4. treat recycled water

In the circulating water, due to the addition of sodium hexametaphosphate to reduce the hardness, it is not easy to produce calcium carbonate deposits and avoid blocking the water pipe. The dosage is about two parts per million.


5. Treat boiler water

Sodium hexametaphosphate can also be used to treat hard water in the furnace, which can not only avoid the generation of scale, but also can re-dissolve the generated scale, but the price is higher than that of trisodium phosphate.


6. Ingredients for synthetic detergent

Sodium hexametaphosphate is an important ingredient in synthetic detergents (such as sodium alkyl sulfonate, sodium alkyl benzene sulfonate), because it has good water softening capacity and washing capacity.


Textile printing and dyeing auxiliaries belong to the development and management industry. While vigorously developing new products and new technologies, it also needs to spend more effort to research product application technologies and provide comprehensive technical services and technical support. The comprehensive advantages of sodium hexametaphosphate can reduce investment in fixed assets, avoid continuous large-scale production, adopt intermittent production, be close to the market, and produce on demand to avoid unnecessary losses.

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