Blocks used for hand block printing is generally made up of sycamore, plane and pear wood. A design first made on tracing paper and then copied on wooden block. An experienced wood carver then chiseled the intricate design pattern. Once the design is fully carved, the blocks are treated with oil and set aside to soften.
The dyes used are called Azo dyes come in a few different base colors and those colors are carefully mixed together to match the desired shade. The fabric is laid flat on a table, and fixed firmly to the table with pins,A special wood table is used for block printing. The table is usually 6 meters in length, by 50 inches wide.and has at least 10 layers of jute fabric, a blanket layer and a thick cotton sheet on the top that is tightly tucked in from all sides of the table. All of these layers help the block print to properly absorb and print onto the fabric.
An expert hand block printer dipped wooden block in dye and stamped firmly by hand onto the fabric. This requires a certain amount of force often achieved by hitting the stamp by hand.If the design incorporates multiple colors, then each is applied separately with its own block, after the previous color has dried.The outline blocks are called Rekh and the filler blocks are called Dutta.