1.

Discuss any one of the following in details: i. Block Printing ii. Screen Printing

Answer»

(1) Block Printing:- Block printing is the oldest form of printing where-in a wooden block with a raised pattern on the surface is dipped into the printing colorant and then pressed down on to fabric to achieve design on the fabric. In Block printing , the pattern is generated by repeating the process of block application on the fabric. For a design of four colours, four separate blocks are developed. Due to manual process, this printing is time consuming and provide flexibility of changing the pattern placement.

(2) Screen Printing:- This style of printing is popular because of wider scope for achieving desired results. In this technique, the printing paste passes through a fine fabric stretched on a wooden or metal frame. The design is created in reverse on the screen by blocking areas of the screen with light sensitive chemical. The screen is then placed over the fabric and the printing paste is forced through the open areas of the screen using a flexible synthetic rubber or steel blade. It is done either with flat of cylindrical screens made of mild threads, nylon, polyester, or metal. Based on the type of the screen used, it is known as ‘Flat Screen Printing’ or ‘ Rotary Screen Printing’.



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