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| BUSCH Automatic
Punching Machines for the production of In Mould labels |
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In
Mould Labelling (IML)
Known as (IML), it is a cost effective means of decorating a bucket or
container with high definition graphics
and text. The host material’ (container) and the label
substrate material from which the label is being made are similar,
enabling a
molecular bond to take place during the moulding process.
Injection moulding machines are fitted with a handling mechanism which
‘picks and places’ the label from a stack. Labels
are introduced onto the die or dummy core and held in place with a
static charge. The die is closed and the material to be moulded is
injected into the cavity containing the label. After a short
‘dwell’ time the cavity is opened and the container
ejected.
In addition to eliminating the need for subsequent labelling the
process is fully automated, fast, hygienic and containers incorporating
in-mould labels are easy to recycle. IML labels offer excellent
opportunities for ‘differentiation’ at point of
sale together
with superb durability in adverse conditions.
Frequently
Asked Questions about IML
Q. What is In Mould Labelling?
A. In mould labelling is a
technology that fuses a label directly onto the surface of your plastic
moulding. Producing vivid colourfast
labels which are not susceptible to peeling.
Q.
What is the process?
1. The label is printed onto a microfilm substrate.
2. The label is high-die cut to shape with a BUSCH Automatic Punching
Machine.
3. A static charge is applied which will hold the label in place inside
the mould.
4. The label is placed into the mould.
5. The mould is closed and the plastic injected and cured.
6. After curing, the mould is opened and the piece ejected.
Q.
Why use In Mould Labelling?
A. Microfilm labels for In Mould Labelling provide a crisp clean finish
to any moulded plastic product. The labels are completely bonded to the
plastic during the moulding process and will not peel away even when
subject to extreme humidity. IML does not involve manual handling and
modular delivery and
virtually eliminates stoppage when a changeover is required.
BUSCH
Automatic Punching Machines
High-die cutting is one of the most critical areas in the IML process.
Labels printed in sheets are stacked and run through a high-die cutter.
In this process, stacks of rough-cut labels are rammed through a die
and emerge cut to size and shape. The key in this process step is
guaranteeing utmost precision while maintaining high volume production.
BUSCH Automatic Punching Machines are used worldwide for IML
production. Because consistent quality in high volume production is
such an important issue, most In Mould Label
manufacturers rely on the precision, versatility and durability
provided by Busch. Alone in Europe approx. 90% of all In Mould Labels
produced are punched with BUSCH machines.
Due to the nature of the host material (container), a typical In Mould
Label is rather large sized, because it usually encloses the
complete container. BUSCH is the only manufacturer worldwide to provide
solutions -High-die cutter &
Counterpressure Device- especially for extra large In Mould Label
production.
Why
use Counterpressure?
As the IML material -PP or PE foil- is very soft, it will bend or
‘bow’ during the punching process. This will result
in unacceptablepunching tolerances. A Counterpressure Device puts
(counter-) pressure to the material from the opposite side thus
achieving highly precise punching results.
A quick look at the benefits:
- Industry leading cost-performance ratio
- Exclusive solutions for extra large IML.
- The one-way system assures low tolerance, as the material is inserted directly in front of the die.
- The slit waste cannot pile up, because it escapes easily to the bottom.
- The largest possible flexibility of punchable shapes, from very small sizes of 10 x 10 mm up to large formats of 330 x 380 mm.
- Size tolerances due to “sagging” of blanks are minimized, as the punching direction of the upright
- standing blanks is inclined.
- Counterpressure Devices available for all models.
 Visit
BUSCH
Website
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