Blow Room process in the textile industry

What is Blow Room?

The blowroom section is where the supplied compressed bale is opened, cleaned, blended, or mixed into a homogeneous lap of a specific length. It represents spinning’s initial steps.

The opening, cleaning, and mixing of cotton fiber tufts without overstressing the fibers are the primary functions of the blowroom process. The blow room’s primary job is to break down the fiber bales into a stream of incredibly tiny fiber clumps, which are just the right size for the cards to eat. In the blow room region, garbage removal ranges from 40% to 70%.  Each manufacturer offers a unique line of blow room equipment, which consists of various devices. Figure 1 depicts the order of the equipment in a typical blow room line. A bale breaker is where blowroom begins on the left, followed by a number of cleaning machines, a mixer, and a dust and foreign matter extractor. Carding comes next. 

Functions of Blow Room Machines:

1. Opening: To open the compressed bales of fibers & to make the cotton tuft as small as possible.

2. Cleaning: To remove dirt, dust, broken seeds, broken leaves, and other foreign materials from the fibers.

3. Mixing & Blending: Uniform mixing/blending of fibers of different varieties.

4. Lap or flock formation: To transfer opened and cleaned fiber into sheet form of definite width and length which is called lap or in modern systems directly feed the material to the carding machine in flock form.

Operations of Blow Room Machines:

1. Opening: In this step, the compacted fiber bales are opened to create cotton tufts that are as small as feasible.

2. Cleaning: This procedure is utilized to remove debris from the fibers, including dust, dirt, broken seeds, leaves, and stalks.

3. Mixing or blending: By lowering production costs, which is only feasible by mixing different grades of fibers, mixing or blending has been successful in producing higher-quality yarn.

4. Lap forming: The following factors led to this procedure:

Transferring the opened and cleansed fibers into a sheet form with a particular width and constant unit length is what is referred to as lapping.

Additionally, it is utilized to roll the lap into a desired shape.

Cleaning of Blow Room Machines & Waste disposal

  • Collect the wastes at regular intervals as instructed by the shift in charge.
  • Clean the machine along with the maintenance person
  • Keep the machine surroundings always clean .
  • Collect the waste from the centralised waste collection systems when it is full.
  • Sort out the metal pieces from the material collected at metal detector system .
  • Make sure that the fibre wastes are falling in respective waste collection bags.
  • Transport the wastes to the designated place
  • Keep the waste category wise and avoid mix-up
  • Transfer the wastes to waste godown & Weigh the wastes and record in register.

Importance of Blow Room

The initial workspace for short-staple spinning is the blow room. Huge pre-mechanical and initial loads are placed on the fibers in this region. Short staples are rotated in a method used by The Blow Room.

Machines used in Blow room line:

Conclusion: You must be aware of how a top-notch blow room section operates if you want to explore the world of spinning, especially the discipline of ring spinning. This is the initial phase in the production of yarn, and it involves numerous pieces of machinery. I’d say the highest!

Sadman Al Hasan
Department of Apparel Manufacturing Technology
Institute of Science Trade and Technology

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