Paint Papers with Liquid Dyes for Paper If you are looking for paper dyes, consult from one of the leading liquid dyes manufacturers and exporters only! Firstly, go for liquid dyes since they produce a long lasting colouring effect unlike the others. It is nowadays considered over the other variants given the advantages. Next, consult the best of manufacturers and exporters since they will be able to guide you on the exact type of dye required based on the material and also you will get the best quality product at the most competitive price.
Also, check with your manufacturer or dealer that it meets the quality standards and criteria so that it stands the test of time and the product is genuine. Below are the features that you need to heck for when you buy them. Benefits of Liquid Dyes – The advantages that the liquid dyes for paper provide can be summarized as below:
Liquid dyes for paper are homogenous in nature and are easy to manufacture with the help of liquid injectors. Liquid dyes are clean and dustless, especially as compared to powder dyes Liquid dyes have the ability to dissolve faster as compared to the other variants Liquid dyes are non-toxic in nature, the leading brands provide a certification of the non-toxic factor along with being compliant to quality checks and standards.
Now we need to know the process of dyeing with the help of liquid dyes. Here the most commonly used Direct Yellow shade of paper is mentioned however other hues can be prepared in the similar procedure with the addition of other colour pigments with a slight difference, like the quantity of salt would be higher for darker hues and lower for light shades. How are Liquid Dyes used for manufacturing Yellow Paper – The colour pigment along with liquefying chemicals are mixed with silica filters. The mixture so formed is then acidified with an inorganic acid with pH level below 2.5. The mixture is further heated so that the free acid complex of the yellow chromophore and sodium sulphate or sodium chloride is formed. The salt that is formed is water soluble in nature while the insoluble acid complex is filtered out and coated with an aqueous base. The ultimate result is that of a filter cake with free acid complex. It is now washed well so that the salt content is removed. Then the cake is churned in alkanol amine or water mixture. The alkanolamine is present in sufficient quantity to provide an aqueous basewith the pH range between 6.5 to 7.5. Now the free acid complex gets converted into liquid alkanolamine stilbeneazo(xy) complex of Direct Yellow 11 which is again desorbed from the silica filter aid. The ultimate resulting filtrate contains the alkanolaminecomplexed Direct Yellow chromophore. Now the water is removed and the liquid Paper Yellow 11 complex dyestuff is formed. All you need to do is get in touch with one of the leading and trusted brands of manufacturers and dealers of liquid dyes for paper. Check with your manufacturer so that it is quality tested so that the colouring effect does not fade away. They will also be able to guide you on the after care of the dyed product which is essential for the maintenance of the same.