Blow room:
Blow room consists
of a number of machines used in succession to open
and clean the
cotton fiber to the required degree. 40to70% trashes are removed in this
action.
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| Blow room line machine |
Blow room
section:
A section
in which the supplied compressed bales are opened, cleaned and
blending or
mixing to form uniforms lap of specific length is called Blow room section.
The
cleaning efficiency of blow room is 60 to 65%. This is the first section of the
spinning line.
After
collecting cotton bales, the cotton bales are opened for mixing by manually or automatically.
Then the opened and mixing fiber is feeded into feed lattice and then it is passed
big pipe line into machine by air current for opening and cleaning which is
carried out by different kinds of beater and grid bar.
Operation
involved in Blow room line:
1. Opening
2. Cleaning
3. Mixing
and blending
4. Lap
forming
5. Dust
removal
Opening:
1. To open
the compressed bales of fibre.
2. To make
the cotton tuft a small size as for as possible
Cleaning:
To remove
the dirt, dust, broken seeds, broken leaf, and stack and foreign
materials
from the fibers.
Blending
and mixing:
To make
good value of yarn and to decrease the production cost by mixing
different
grade of fibers.
Lap
forming:
1. To
transfer the opened and cleaned fibers into a sheet form of definite
width and
uniform unit length is called lap.
2. To roll
the lap of predetermined length in a cylindrical shape around a
lap pin.
3. To
transfer the lap from the lap pin to a rod to suitable handle and feed
it to
subsequence processing carding m/c.
Dust
removal:
To remove
dust which is completely enclosed in the flocks and are held
back during
suction.
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