The document summarizes various machines used in the blowroom section of the textile spinning process, including opening, cleaning, blending, and feeding machines. It discusses the Unifloc A11 bale opener, Uniclean B12 pre-cleaner, Unimix B75 mixing machine, Unistore A78 storage and feeder machine, and Card C60 carding machine. It provides details on the purpose, operation, quality aspects, flexibility, and economy of each machine.

1. Khulna University of Engineering & Technology
Dept. of Textile Engineering
Course no:TE-3101
Presentation on :Blow Room Machines
Submitted by, Submitted to,
Tanvirul Islam Md : Naim Hassan
Roll:1321019 Lecturer , Dept. of
Dept : Textile Engineering Textile Engineering
Date: 20-07-2016

2. Blow Room:
The section where the supplied compressed
bale is turnt into a uniform lap of particular
length by opening, cleaning, blending or mixing
is called blow room section. It is the first steps
of spinning.

3. Operation of Blow Room:
• Opening
• Cleaning
• Dust Removal
• Blending
• Even feed of material to the card

4. Machine Sequence of Blow Room:
Unifloc
A11
Uniclean
B12
Unimix
B75
Unistore
A78
Card C60

5. Unifloc A11:
The foundations for yarn quality and thus the
quality of the textile end product are laid in the
blowroom process. This is the basis of the
successful use of Rieter’s A 11 UNIfloc automatic
bale opener worldwide. The A 11 UNIfloc
processes the fibre material gently and efficiently
into microtufts, from which impurities can be
removed very readily in the subsequent
processes. This effectively supports the quality
and economic efficiency of yarn manufacture.

6. Economy:
• The UNIfloc is designed for output of up to
1 200 kg/h (carded sliver).
• Depending on the machine length selected,
bales are laid down over a length of 7.2 to
47.2 metrer.
• Automatic bale profiling eliminates labour-
intensive manual alignment of the bale height.

7. Unifloc A11:

8. Quality:
• Opening bales into microtufts provides the basis
for effective cleaning and dedusting by
subsequent machines.
• The Rieter unique automatic bale profiling
enables quality consistency over the entire lay-
down and therefore in subsequent processes.
• The double tooth profile ensures gentle
extraction of the tufts irrespective of the
direction of rotation of the take-off roller.

9. Flexibility:
• The UNIfloc can process up to 4 assortments.
• The possibility to choose between two sizes of
the take-off unit (1 700 or 2 300 mm) allows
flexibility in lay-down and bale size.
• Cottons of all origins and man-made fibres up
to a staple length of 65 mm are processed

10. Uniclean B12:
The B 12 UNIclean pre-cleaner cleans the
microtufts in the first cleaning stage
immediately after the A 11 UNIfloc. A machine
production of up to 1 400 kg/h is achieved.
Cleaning is performed without nipping and is
therefore very gentle to the fibres and at the
same time efficient. VARIOset enables waste
volume and waste composition to be adjusted
optimally at the push of a button. This ensures
a high level of raw material utilisation.

11. Uniclean B12

12. Economy:
• The UNIclean is designed for output of up to
1 400 kg/h (carded sliver).
• With efficient cleaning, fibre yield is up to 2 %
higher than on conventional units.
• The energy consumption required for waste
transport is low as a result of intermittent
extraction.

13. Quality:
• Fibre-preserving cleaning of the raw material
due to free fibre flight and the use of
adjustable grid bars.
• The large dedusting surface ensures intensive
dedusting even at high production
performance.
• Simple visual check permits rapid quality
assessment of waste composition.

14. Flexibility:
• If the bale opener is processing different
assortments, the working point specific to the
material is automatically selected on the B 12
UNIclean.
• Easy machine setting during operation by
means of VARIOset.
• Connection to UNIcontrol blowroom control
system.

15. Unimixer:
The B75 mixing machine guarantees
homogeneous, intimate mixing of the bale feed in
a minimum of space, even with unfavourable bale
lay-down. The unique 3-point mixing process is
equally suitable for cotton and man-made fibres.
Eight mixing chambers ensure not only effective
mixing, but also high production performance.
The large storage volume of the UNImix provides
the ideal preconditions for a high degree of
operating autonomy in the blowroom.

16. Economy:
• The production volume up to 800 kg/h (B 72) or
up to 1 200 kg/h (B 76) results in an excellent
price/performance ratio with comparably low
space requirements.
• The large storage capacity ensures regular
feeding of the downstream blowroom machines
and is the precondition for the production of
quality yarn without personnel intervention.
• Settings are entered rapidly, easily and
reproducibly on the UNImix by the push of a
button. Short setup times result in high efficiency.

17. Quality:
• The unique 3-point mixing principle with 8 mixing
chambers produces a good, permanently homogeneous
fibre mix. This is the precondition for consistently high yarn
quality.
• Tuft size can be adjusted at the mixing roller in coordination
with raw material and application; optimal opening and
homogeneous feed to the subsequent process are thus
guaranteed.
• Integrated dust removal separates the dust-laden
conveying air from the fibre material. This occurs extremely
gently and consequently improves the running behaviour of
the spinning machine and thus also yarn quality.

18. Flexibility:
• The easy addition of an opening or cleaner
module provides flexibility with the capability
to respond to changes in market conditions.
• The ability to process cotton, blends and man-
made fibres means that there are no
limitations when processing different raw
materials.
• Bypass facility for the cleaner module (e.g.
with man-made fibres) for rapid mix change.

19. Unistore A78:
The UNIstore A 78 is used as a storage and feeder
machine in the blowroom. Its main purpose is to
provide intermediate storage for material in order to
ensure trouble-free blowroom operation. Long piping
distances are frequently found to interfere with the
smooth running of the processes and intermediate
storage is necessary in many cases. The UNIstore A 78
is used where a mixing opener proves unsuitable for
financial, technical or technological reasons. The
integration of a mesh screen filter inside the UNIstore
A 78 eliminates the transport air, and creates an
efficient dedusting. The structure of the feeding and
opening unit guarantees gentle fiber opening.

20. Unistore A78

21. Card C60:
The C 60 high-performance card achieves excellent
quality values at highest production for all yarn
applications. This is based on the well-proven 1.5 m
working width and maximum active carding area.
Precise flats guiding and innovation in the pre- and
post-carding area allow, with the selective waste
extraction, an excellent raw material exploitation and
sliver quality. With the integrated grinding system IGS,
the sliver quality is maintained at a high level. By
utilising draw frame modules instead of the classical
can coilers, the customer has the possibility to
optimally layout the process.

22. Card C60:

23. Card C60

24. Economy:
• High production performance with top quality for all
yarn applications thanks to the maximal active carding
area and optimised pre- and post-carding area.
• Excellent raw material exploitation thanks to the
adjustable knife on the licker-in, variable insertions of
the extraction elements in the pre- and post-carding
area as well as to the electronically adjustable flat
speed.
• The lowest energy balance of the C 70 is based on the
combination of compact construction with small,
movable masses and innovative machine geometry and
flats area.

25. Quality:
• IGS – ensures a consistently good sliver quality
with permanently sharp clothings and therefore
increases the service life of clothings.
• High production and sliver quality with the
reliable autolevelling of the card and controlled
fibre transport.
• Sophisticated detailed solutions for absolutely
uniform batt weight and web formation give a
card sliver of superior quality and lead to
machine operation requiring no intervention.

26. Flexibility:
• The modular construction permits a rapid
adjustment to new raw materials and
requirements.
• The draw frame modules facilitate an optimal
process, adjusted to raw material and application.
• The option exists to arrange the card lines with
8 cards, line production up to 600 kg/h or with 10
C 70 cards, line production up to 1 200 kg/h.