Nowadays, various industrial as well as personal applications are been portrayed with different colours and appear as an exquisite rather than the actual existence of the product. Let us illustrate with the features and applications of solvent dye.
What are Solvent Dyes?
Solvent Dye is used as a solution in organic solvents and is a dye soluble in organic solvents. There are different solvent dyes having its generic name as solvent yellow 21, solvent yellow 82, solvent red 8, solvent blue 48, solvent red 122, solvent black 27, solvent black 29, solvent orange 62, solvent violet 8, solvent violet 9, solvent red 49, solvent yellow 33, solvent yellow 43 etc.
Features of Solvent Dyes –
- Solvent Dyes are insoluble in water
- Molecules of solvent dyes are nonpolar or little polar
- They do not undergo ionization
- It forms a colloidal solution
- Solvent dyes have poor to good light fastness property
- Red and yellow solvent dyes are azo dyes, whereas green and blue ones tend to be anthraquinone dyes
- They do not produce discrete films or residues while manufacturing
- It enhances colour with consistency and quality with their solid capacity of being dissolved in organic solvents
- It is solvable in non-polar solutions due to granular redisposition
- Solvent dyes include alcohols, fats, waxes, oils, aromatic hydrocarbons etc.
- Solvent dyes colours out organic solvents, waxes, lubricants plastics, hydrocarbon fuels, and other hydrocarbon-based nonpolar materials
- Used for gold imitation of metalized polyester films
- Used in printing for marking inks, inkjet inks, glass coloration
- Used in Media Industry for Newspapers, Magazines
- Used for signaling smoke in the pyrotechnics industry
- Medical Research / Diagnostics – Used by components produce stains that will identify various cell structure components
- Plastic Industry – Used to colour acetates, nylon, polyester, acrylics, PVC, PMMA, PETP, polystyrene and styrene monomers.
- Wood Stains
- Fibers, Filaments
- Hydrocarbon Fuels, Waxes
- Metalized Polyester Films
- Food Industry
Advantages of Solvent Dyes -
- Solvent dyes are consistent to color shades, and quality
- It has a better light fastness property that means it has an ability to endure colour when exposed to sun or light
- There is no precipitation after an extensive storage
- It is a great resistance to migration
- It is more resistance against corrosion at extreme temperatures that means it has a good thermal stability
- It is highly dissolvable in plastics, it melts at an appropriate temperature leading to superior colour yield with changing the color shade
- Solvent dyes are also widely been used in colouring existing surface even if the surface is damaged.