The printing means applying colored patterns or designs in order to beautify finished fabrics. In the print fabric, the color is affixed to the fibers, so when washing the print may not be affected. To know the fabric either printed of dye, you can examine the outline of the design. For the printed fabric, the design outline will sharply define the outer sides. The design will not penetrate to the back of the fabric.
In addition, the dyes mostly use vat, naphthol disperse, and reactive colorants which deliver good fastness properties. Vat and reactive dyes are used for cotton printing fabrics. Silk printed fabric usually uses acid colors. Meanwhile, wool is printed using chrome or acid dyes, but the fabric should be treated with chlorine in order to have greater penetrate the color. Commonly, the man-made fibers are greatly printed using cationic and disperse dyes.
Moreover, fabric printing has at least three different approaches for color printing on a fabric. They are direct, resist and discharge techniques.
The direct printing fabric is commonly used to apply color patterns. This technique can be done on colored fabric or even white fabric. Besides, overprinting is known as print fabric approach on colored fabrics. The desired designs and patterns are created by imprinting dye on fabric in a paste form. To make a print paste, amount of water and dye add to a thickening agent.
The resist textile printing technique uses a resist paste in order to be imprinted on the fabric and then it is dyed. The dye process will affect the parts that are not covered by the resist paste. After the dye process is done, the resist paste is removed leaving a design on a dark background.
This discharge printing approach requires two steps including dye process and chemical printing. The process of this textile printing includes first, the fabric is dyed in a piece and after dying process, it continues with a chemical printing in order to remove the color in the patterned or designed areas. And then, the print fabric is steamed and then washed. In fact, this technique of print fabric is restricted these days.
Moreover, there are still various print fabric methods in which one of the above print techniques is used. They are Duplex Printing, Stencil Printing, Jet Spray Printing, Photo Printing, Airbrush Painting, Digital Printing, Warp Printing, Batik Dying, Tie Dying, Etc,