Printing is another part of wet processing technology. Printing is basically carried out after pre-treatment of fabric or after dyeing of the fabric. However, it is carried out for producing attractive designs on fabric or other materials. The printing is described as localized dyeing i.e., dyes or pigments are applied locally or discontinuously to produce the various attractive designs on fabric. The main objectives of printing are the production of attractive designs accordingly with well-defined boundaries made by the artistic arrangement of a motif or motifs in one or more colors. Emphatically, printed fabrics are well protected from friction and washing if dyes or pigments are applied properly to fiber. Hence, a strong bonding is formed between dyes and fiber.
Steps in Textile Printing:
Textile printing is carried out in different steps, such as:
- At first, fabrics should be pre-treated before printing.
- Secondly, printing paste must be prepared by using printing ingredients because printing performance depends on a good printing paste.
- Then, making an impression of the print paste on the fabric by using any of the printing methods, is required.
- After that, drying is carried out on the printed fabric.
- Therefore, steaming is carried out on printed fabric for fixing the printing paste on the fabric.
- At last, printing fabrics are neutralized by the after-treatment process.
Styles of Textile Printing:
There are three different styles of printing. Such as:
1. Direct style of printing
2. Discharge style of printing:
- White discharge
- Color discharge
3. Resist style of printing:
- White resist
- Color resist
Different Methods of Printing:
Printing is carried out with different instruments. Different methods are used to produce an impression on fabric. Methods of printing differ on the demand of the user. Also, it depends on the type and type of the material for purpose of end product use. The following methods can be applied for textile printing operations. They are as follows:
- Block Printing
- Burn-out Printing
- Blotch Printing
- Digital printing
- Duplex Printing
- Engraved Roller Printing
- Electrostatic Printing
- Flock Printing
- Ink-jet Printing
- Jet Spray Printing
- Photo Printing
- Rotary Screen Printing
- Screen Printing (Flat Screen)
- Stencil Printing
- Spray Printing
- Transfer Printing
- Warp Printing
- Special Methods (Tie-dyeing and Batik Printing)
Development Process of Textile Printing:
At the initial stage of printing, this printing work was done by hand but day by day this style is changing by utilizing different modern techniques. Now different types of critical printing are done very easily with the guideline of modern science. Most printing machines are controlled by the computer. Graphics design is mostly used in the printing process. Different types of textile printing machine manufacturing companies trying to improve the present techniques of printing methods.
In sum, the printing process plays an important role in the civilized world. Moreover, multiple colors can be used in the printing process. Sometimes printing properties show the identity of a nation consequently. So, we should give great emphasis on the printing process to produce different types of attractive designs on textile materials.
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