What Is The Difference Between Dyes & Pigment?
I have seen a lot of Textile Engineers who are confused about the difference between dyes and pigments.
There are some basic differences between dyes and pigments from which you can be clear about the main features of these two.
- Dyes are the material which can be applied on the fabric or yarn surface and shows color visible to they human eyes in the presence of light. Dyes can be found in liquid and solid forms. And on the other hand; Pigments are colored, white or fluorescent particulate organic and inorganic solids which usually are insoluble in water and physically, chemically unaffected by the substrates in which they are incorporated.
- Generally Dyes are soluble in Water. Pigments are 100% insoluble.
- Dyes are composed of Organic substances. Pigments are organic and inorganic materials.
- Dyes materials have three components; these are – Chromophor, Auxhochromo and Chromogen. Other end; pigments have two parts like Chromophore and chromogen.
- Dyes are selectively applied. Pigments can be applied to all fibers.
- The fastness properties of Dyes are good. Fastness property of Pigment is average.
- Dyes are widely used in Dyeing. Pigments are widely used in Printing.
- Dyes are comparatively expensive. Pigments are comparatively cheap.
- A long period is needed for dyestuff to be applied. Pigments need lower time to be applied.
- Dyes have direct affinity to fibers. Pigment has no affinity to fibers. Pigments need other modifier to increase affinity to textile fibers.
These are the basic difference between dyes and pigments. Do you have any idea about what the things I have missed to mention here? You can let me know by comment or contact link.