Can sodium hexametaphosphate/SHMP technical grade be used in basic dyeing auxiliaries?

 At present, the traditional acid dyeing bath condition dyeing method is still used in the dyeing and finishing of polyester fabrics. The method has the disadvantages of poor quality, low output and high production cost in the production process, and it is more and more unsuitable for the production needs, especially for the dyeing of polyester fabrics after alkali treatment. The root of these problems lies in the lack of basic dyeing auxiliaries, while sodium hexametaphosphate/SHMP technical grade is a widely used dyeing auxiliaries in phosphate products.


First, look at the advantages of basic dyeing aids:

Basic dyeing auxiliaries, which are used as special dyeing auxiliaries for basic dyeing of polyester fabrics, popularize the basic dyeing methods. By optimizing alkali resistant disperse dyes and using special alkali agent, polyester fabric can be dyed and processed in alkaline condition, which can make the fabric bright in color, reduce defects such as color difference, flower and contamination, greatly improve product output, quality and reduce production cost.


Then, look at the use of sodium hexametaphosphate in basic dyeing aids:

Basic dyeing auxiliaries are composed of three components: powdered sodium carbonate, borax and sodium hexametaphosphate. The percentages of the three components are no2co322-26% sodium carbonate, Na2B4O710h2o20-23% sodium hexametaphosphate (NaPO3), 654-55% by weight.


The three components are stirred evenly in proportion. It is required that the fineness of the basic dyeing assistant should be more than 60 mesh. The commodity of basic dyeing assistant realized by this method is solid, but it needs to be dissolved in water when it is used, so that it has the properties of chelating and softening water quality and dispersion in the aqueous solution, making the aqueous solution alkaline and stable dyeing and dissolving pH value, while sodium hexametaphosphate/SHMP technical grade can just chelate the metal calcium and magnesium plasma in the aqueous solution to achieve the function of soft water and dispersion.

评论

发表评论

此博客中的热门博文

The manufacturer tells you the dispersing effect of sodium hexametaphosphate

The dispersing effect of sodium hexametaphosphate is due to its hydrolyzed anions adsorbed on the particle surface. In order to improve the dispersing effect, the hydrolysis degree of the dispersant can be selectively increased. It is believed that we all know that the function of dispersant is to increase the distance between the large particles to be dispersed in the solution and reduce the viscosity of the whole solution. However, the amount of   sodium hexametaphosphate   used in the dispersion of different substances is also different. In the process of material dispersion, the surface of large particles adsorbs the dispersant to form a double electric layer, and anions are closely adsorbed on the surface of particles, which is called surface ions. Ions with opposite charges in the medium are called anti ions. In the process of medium movement, particles and particles, as well as the electric double layer and the electric double layer have the same charge, which will generate elec
阅读全文

Non-antibiotic growth promoter potassium diformate helps pig industry return to its essence

  The high profitability of the pig industry will not last, and the future development of the industry still needs to return to the essence of pig raising. The non-antibiotic growth-promoting agent   potassium diformate  helps return to the essence of breeding and helps control the cost and quality of the pig industry. Biosecurity has become the access condition of today's pig industry. Potassium diformate has the following functions and functions to return the essence of pig farming to the breeding industry: (1) Adjust the palatability of feed and increase animal feed intake. (2) Improve the environment of the animal's digestive tract and lower the pH of the stomach and small intestine. (3) It has anti-bacterial and growth-promoting effects. The addition of potassium diformate can significantly reduce the content of anaerobic bacteria, Lactobacillus, Escherichia coli and Salmonella in each segment of the digestive tract. Improve the resistance of animals to diseases and reduce
阅读全文

The factory tells you food grade sodium tripolyphosphate/STPP requires heavy metal purification

Condiments, meat products, edible oil, dairy products, drinks, etc. are all necessities of daily life. Some food additives will be used in the production and processing process. The use of additives also makes people more concerned about "safety on the tip of the tongue".  Sodium tripolyphosphate/STPP  is widely used in food additives. Chongqing Chuandong Chemical Group will show you the main applications of sodium tripolyphosphate/STPP in the food industry: 1. Food grade sodium tripolyphosphate is used in meat products, fish sausage, ham, etc., which can improve the water holding capacity, increase the cohesiveness and prevent fat oxidation; 2. For fruit drinks and cool drinks, it can improve the juice yield, increase the viscosity and inhibit the decomposition of vitamin C. 3. It can prevent discoloration, increase viscosity, shorten fermentation period and adjust taste when used in soybean paste and soy sauce. 4. For ice cream, it can improve the expansion capacity, increa
阅读全文