Application of Myrobalam
The filtered abstract of myrobalam fruit is diluted
by the addition of about seven to eight buckets of water.
The material is dipped into this solution, removed immediately,
squeezed out and dried in the sun. The tannin in the
myrobalam plays a special role, on reaction with iron
salt a black color is produced. When the tannin reacts
with alum it improves the fastness of the red dye. It
also helps the cotton fiber to absorb the iron and alum
salts more evenly.
Printing of Iron and Alum Mordants
The printing is done on a long wooden table at an elevation
of about one foot from ground. The surface of the table
is covered with gunny cloth over which a damp cloth
is spread. The fabric to be printed is stretched out
on the table. Mordant is placed in the printing pad.
The basic structure for this is a rectangular tray made
of deodar or teak wood. A lose bamboo frame is made
which fits breadth wise into the bottom of the tray.
The printer sits cross-legged at the table with the
pad within easy reach. Mordant is poured from time to
time onto the pad from a brass lota ( mug). The bamboo
separators act as the base from which the sponge layer
absorbs mordant in limited quantities throughout the
printing operation. The woolen cloth on top acts as
a kind of blotter so that only the surface residue from
the sponge layer permeates through to establish contact
with the block. After wetting the surface of the block
with the mordant solution, the printer presses it down
on to the fabric. The block is hammered down after each
impression with a round edged hammer mostly to soften
the impact the surface of the hammer is covered with
cloth padding. Block printing is an art that requires
precision and skill to achieve necessary fineness.
The printing of the iron mordant precedes that of alum.
The prepared substances are thickened with gum to facilitate
printing.When the iron mordant impression is made on the myrobalam
treated cloth, the tannin in myrobalam reacts to the
iron acetate leading to the formation of black color.As alum solution is colorless, a fugitive color is
added so that the outlines may be visible while printing.
In past sappan wood was used, today vermilion is utilized.
After mordant printing the cloth is kept for two or
three days to ensure thorough drying.
Degumming and Washing
After mordants have dried, degumming and washing is
takes place. The degumming has to so effected that there
is no smudging of the outline. The cloth is taken to
the river and left in water for about two to three hours.
Utmost care is taken to ensure that the cloth is evenly
stretched out to ensure all unwanted mordant is removed. The cloth is also beaten on the stones by the riverbed to remove the remaining impurities and later the fabric
is dried in the sun.
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