29 02 2012
What is Pigments || Comparison between Dyes and Pigments
Pigments are the special type of dyeing or printing materials for wet processing technology. It is not so easy task to print or dye a material by pigments, because pigment is 100% water insoluble. So it needs to take special technique for pigment dyeing or printing. Generally pigment is use for printing.
Pigments can be define as a water insoluble coloring material mostly mineral origin have been used for coloration of metal, wood, stone and textile materials. Pigments have different types of chemical characteristics. Some examples of pigments are given bellow:
- Perylene perinone
Dyes and pigments are the main coloring materials. So we have to know about the comparison between dyes and pigments, which will give us a clear idea about this two.
|Generally organic materials are dyed or print||Organic and inorganic both types are dyed or print|
|It is water soluble||It is completely water insoluble|
|It contains auxo chrome in their chemical structure||No auxo chrome contains in pigments|
|Color fastness generally average to excellent||Color factness is average to good|
|Its application method is very easy||Need binder for application|
|It is generally used for dyeing||Generally used for printing|
|Dyes are expensive than pigments||Pigments are generally inexpensive than dyes|
|Dyes have attraction for fibers||They have no attraction for fibers|
|It applies selectively on textile materials||All fibers can be color|
In modern times pigment use to dyeing cotton fabric besides printing. Different types of pigment are supplied by different well known dye and pigment manufacturing companies.