Printing

The printing is described as localized dyeing i.e.: dyes or pigments are applied locally or discontinuously to produce the various design. The main purpose of textile printing is the production of attractive designs with well defined boundaries made by artistic arrangement of a motif or motifs in one or more color.

Steps in Textile Printing: The textile printing is carried out in various steps. Such as:

1. Preparation of the fabric to be printed.
2. Preparation of the print paste (by using printing ingredients).
3. Making an impression of the print paste on the fabric (Actual printing).
4. Drying of the printed fabric.
5. Steaming of the printed fabric.
6. After treatments (Neutralization).

Methods of printing: The following methods can be applied for textile printing. Such as,

1. Block printing.
2. Engraved roller printing.
3. Screen printing (Flat screen).
4. Rotary screen printing.
5. Transfer printing.
6. Flock printing.
7. Burn-out printing.
8. Special method (Tie dye and Battic printing).

Printing ingredients of printing paste: The essential ingredients of print paste are selected from the following:

1. Dyes/pigments.
2. Wetting agent.
3. Solvents, solution acids, dispersing agents.
4. Thickener.
5. De-foaming agents.
6. Oxidizing and reducing agents.
7. Catalysts and oxygen carries.
8. Acids and alkalis.
9. Carriers and swelling agents.
10. Miscellaneous agents.

Style of printing:

1. Direct style of printing.
2. Discharge style of printing.
1. A. White discharge.
2. Color discharge.
3. Resist-style of printing.
1. White resist.
2. Color resist.