The document provides information about the blow room process in textile manufacturing. It discusses how the blow room opens, cleans, mixes, and evens fiber to remove impurities before carding. The objectives are to open compressed bales, blend fibers in proportion, and extract impurities while forming a uniform fiber lap. Key functions are opening, cleaning, dust removal, and mixing fibers using machines like openers, cleaners, blenders, and lap formers with beaters that prepare fiber for spinning without excessive rupture or loss of good fiber.

1. Welcome
TO
My Presentation
Abid Iqbal
TE-21/18

2. Blow Room Presentation

4. Blow room is the starting of the spinning operation where
the fiber is opened, cleaned, mixed,
micro dust removed and evened thus passed to carding
machine without increasing fiber rupture,
fiber neps, broken seed particles and without removing
more good fibers.

5. Objects Of Blow room:
• To open the compressed layer of bale of cotton or any staple fiber.
• To blend different varieties of cotton in the desired proportion to
prepare the raw
• material of spinning process.
• To extract the impurities like: broken seeds, seeds, short fibers,
husks, immature fibers,
• sand stone & iron particles, dust & dirt and other foreign materials
from the cotton by
• opening and beating.
• To convert the mass of cotton fibers into a uniform thick sheet of
cotton both
• longitudinally and transversely and to wound in the form of
compactly built lap.
• The object of fiber recovery section of blow room is recover
maximum spin able fibers
• from trashy waste obtained from no, blow room, licker in droppings
and flat strips.

6. Functions of Blow Room:
• Opening Opening is the first operation within the blow room
in which the goal is always a high degree of openness of
material with gentle treatment and a fiber loss as less as
possible.
• Cleaning Cotton contains up to 18% trash in most cases. To
clean the material it is unavoidable to remove as much fiber as
much waste.
• Dust removal It has to be kept in mind that impurities can
only be eliminated from surfaces of tufts. And even then the
• best blow room line is not able to eliminate all, or even almost
all, of the foreign matter in the raw material. A blow room
installation removes approximate 40 - 70% of the impurities

7. MIXING OR BLENDING
• Mixing:It is generally meant as the intermingling of different classes of
fibers of the same grade
• e.g. USA Pima grade2, CIS
• Blending:It is meant as the intermingling of different kinds of fibers or
different grade of same fibers
• e.g. polyester & cotton, Viscose & cotton
OBJECTIVES OF MIXING OR BLENDING
 Economy
 Processing performance
 Functional properties

8. LIST OF MACHINE PARTS:
 Opener
 Cleaner
 Blender or Mixer
 Lap Former
Beaters Used in Blow Room
Machines:
 Porcupine
 Bladed beater: Beater arms
(multiple bladed beater)
 Two bladed beaters
 Three bladed beaters
 Kirschner beater or beater with
pinned bars.
Kirschner beaterBale opener
Lap former

9. Foreign Part
Separator
Cleaner Mixer

10. Conclusion
Blow room machines must eliminate
foreign matter, the blow room
eliminates only about 50% of the
incoming impurities . If it doesn’t do so
the quality of yarn isn’t up to the mark.

11. Thank You