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Introduction to Printing (TE-244)

By:

Khalil Azher

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Printing

Printing is designing ofmulti-colored patternon textile material by using printing paste.

OR

Applying coloured patterns and designs todecorate a finished fabric is called

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Printing paste

The printing paste is an emulsion of dye,thickener and hydrocarbon solvent and

surface active agent.

The uniform consistency of the printing pasteis referred to as its viscosity (the ease with

which the paste flows).

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Stages in Pigment Printing process

1. Preparation of Design (Block, roller, Screen, Heattransfer)

2. Preparation of Printing paste

3. Actual Printing (making an impression of the paste

on fabric )4. Drying of printing paste

5. Fixation as After treatments

6. Soaping & Washing

7. Drying

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Methods & Machines of Printing

1. Block or Stencil printing

It is the oldest technique of printing in which wooden ormetallic block build up into a complete design over thefabric area. Many separate blocks can be used for separate

color.In stencil printing, pieces of marked pattern is cut out of thepaper or metal sheet, this stencil sheet is laid on the fabricand colored paste is brushed or sprayed over it, a separatestencil can used for each color

Wooden/Rubber /metallic block,

Paper or metal stencils

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Block Printing

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Methods & Machines of Printing

2. Roller Printing

Engraved roller printing

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3. Screen Printing

Flat screen printing

Rotary screen printing

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Different Styles of Printing

Direct style: In direct style, dyes are printed directly at the requiredplace of the fabric with multicolored design.

Discharge Style: Fabric is first dyed and then printing with a pastecontaining a discharging agent ,thus white or colored effect can beproduce on colored ground.

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Resist Style: First a resisting agent is printedon white fabric and then fabric is dyed.

Special Styles: Transfer printing style/ Burnoutprinting style

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