The function of water in pigment paste

Water is an important position in water-based pigment paste, it almostly laies that water-based pigment paste is one kind of environmentally friendly coloring materials. Then let's have a look at its four points of function as following:

Firstly, Water is a solvent, one kind of polar solvent. Water surface tension is large, its solubility parameter is 24.3, is a high solubility. In the water based pigment paste formulation, water can be used as a primary solvent, also as a co-solvent or a diluent. The role of water is helping emulsifier and dispersant to cover and connect the pigment particles of water based pigment paste.

Secondly, the cost of water is much lower than organic solvents. To get water resources is more convenient than the solvent from extraction of oil. Lower cost water is good for controlling the cost of water based pigment paste.

Thirdly, water is the guarantee of environmental protection, its volatiles are water vapor and no harm to the human body, is also no pullution to the environment, and can not iproduce VOC.

Fourthly, water is safe envoy, is not incombustible, and water evaporation temperature is 100 degrees Celsius; so that whether it is paint transport, storage and construction are not present security risks of combustion explosion!

With the requirement of safe and low cost of pigment printing and eco-friendly dyeing, The technical personnel develops one kind of coloring material which uses water as main dispersion medium, it is water-based pigment paste. The water used in Caison pigment paste is the deionized water after special treatment. The deionized water is required to be clean and no mechanical impurities. Deionized water has no bacterial micro-organisms, to ensure the quality stability of Caison water-based color paste in the paint coloring products.