Pigments are mainly synthetic organic materials. It has no affinity to the fabric. For this reason, binder is used for making film on the pigment surface. A 3-dimensional cross linking is produced between fiber and pigment. After drying, curing is done at 150 – 180 degree Celsius for fixing the pigments on the fabric surface. Pigment printing is cheaper than other printing process.
Here, I have given a sequence of pigment printing on the cotton fabric.
Recipe: This is a sample printing recipe. It can be change depending on the color depth.
Sequence of Pigment Printing: Pigment printing is carried out as the following way.
Fabric plaited on the table
Pigment printing paste apply with the help of screen
Curing at 160ºc (belt speed 6.50 m/min)
Pigment printing process is interesting one. So, print your knit or woven fabrics with pigments and enjoy wearing a pigment printed T-Shirt or Polo-Shirt.
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.
So, print your T-Shirt, Polo-shirt or other textile materials with pigment and get various attractive designs.
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.