Analysis Of The Influence Of Calcium And Magnesium Ions On The Properties Of Liquid Dyes

In the process of producing and using liquid dyes,there is no dust pollution in liquid dyes,the cost of dyes production is low,and the difficulty of dyeing wastewater treatment is reduced.Nowadays,environmental pollution is being treated all over the country.Under this background,ink-jet printing has great advantages,and liquid dyes must be used in ink-jet printing.This makes liquid dyes have great potential for development.At present,there are many problems in the use of liquid dyes,such as storage stability,which affect the development of liquid dyes.On this basis,the effects of Ca and Mg ions on the properties of these four dyes,such as the filtration rate of dye solution,storage stability and solubility of dye solution,were studied.At the same time,the orthogonal test shows that the ions(calcium ion and magnesium ion)have great influence on the properties of the four dyes.The results show that the solubility of dyes decreases when calcium and magnesium ions are introduced into dyes;the solubility of dye calcium salt is less than that of dye magnesium salt,and the dissolution rate of dyes decreases with the addition of calcium and magnesium ions,which increases the difficulty of dye dissolution.The change of calcium ion concentration has a significant effect on the storage stability of dye solution,while the change of magnesium ion concentration has a certain effect on the storage stability of dye solution.Calcium ion concentration and magnesium ion concentration range which did not affect the storage stability of four dyes were determined,i.e.reactive yellow P-6GS(concentration 20%),reactive brilliant blue P-3R(concentration 20%),acid red B(concentration 15%)and neutral black 2S-RL(concentration 15%).