Group Research & Development Centre,
British-American Tobacco Co. Ltd.,
SOUTHAMPTON.
DBN/CAL/9A 2nd March 1979. .
APPLICATION OF ARENCO DOQ TO MOLINS MARK 9 MCM -
PART II: PRODUCTION TRIALS
(Report No. RD.1649 Unclassified)
SUMMARY AND CONCLUSIONS
Subsequent to the previous report on the
application of the DOQ
to a Molins Mark 9 (1), minor modifications
carried out to the unit in
the Associate company's factory together with some
further work in
Group R. & D. Centre have overcome the problems
found in operating
the DOQ in the production environment.
The intermittent production trials (I per month)
led to the following
conclusions:
1. It was shown that the new type of nozzle would
run satisfactorily
under production conditions but was much improved
by simplification
and modification.
2. The longer needle reduced the incidence of
tobacco collecting
round the nozzle and rarely caused machine
stoppages.
3. Providing the nozzle is initially set up
carefully to the correct
height, no problem of menthol deposition occurred.
4. A degree of operator interaction is required to
check on the ball
level and make slight adjustment, but this can be
minimised by
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BATCo document for Province of BritiSh Columbia 23
April 1999


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reduction of solution aeration. This interaction
is of a lower
order than that required to keep cork adhesion and
print at
satisfactory values.
From the experience gained it is recommended that:
1. The Associate company and any other DOQ user
need to use the DOQ
on a brand which will ensure extended running in
order to obtain
better familiarisation and know-how. (This has
been accepted by
the Associate company directly involved in the
work.)
2. A standardised DOQ should be obtained from
Arenco, containing all
the alterations found necessary (i.e. HOKE
metering valve, ON/OFF
type flow sensing switch, new B.A.T nozzle
assembly).
3. Because of the pitfalls which have been
encountered in attaching
a seemingly simple piece of equipment to a
cigarette making
machine and in obtaining satisfactory running
conditions, all
DOQs should be properly commissioned so that a
degree of
standardisation in setting up can be achieved
througho'ut the
Group. The commissioning would allow the required
know-how
to be quickly imparted to the personnel involved
in operating
the unit and enable trouble-free operation-and the
full potential
of the unit to be attained much sooner than at
present.
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BATCo document for Province of BritiSh Columbia 23
April 1999