Pigments are mainly synthetic organic materials. Pigment printing is done to produce attractive design by applying pigment paste on the fabric surface. Pigments are found in particle state and the particle size range should be in the region of 0.1 – 3 microns.
Pigment printing is done with binder system. We know that pigment has no affinity to cotton fabric for this reason binder is required during printing. The binder is a film forming substance made up of long macromolecules which when applied to the textile materials together with the pigment, produce a 3-dimensional networked. The 3-dimensional links are formed during some suitable fixing process, which usually consist of dry heat and change in pH value (<5), bringing about self-cross linking or reaction with suitable cross-linking agent. This cross-linking improves the elasticity and adhesion of the film to the substrate.
Pigment printing has lots of advantages and disadvantages. Following is the advantages and disadvantages of pigment printing.
Advantages of Pigment Printing
- Pigment can be applied for natural as well as synthetic fibers.
- Pigment print is an easy task for the printer.
- Pigment printing is most economical printing process.
- Pigment printing allows maximum output of goods.
- Fastness properties are good to average.
- Well defined design can be produced by pigment printing.
Disadvantages of Pigment Printing
- Pigment printed textile wears are not comfortable to wear.
- Pigments are sensitible to crushing during roller printing.
- Rubbing fastness is medium.
- Pigments are completely fast to dry cleaning.