capless induction sealing new sealing technology providing performance improvements, significant...
TRANSCRIPT
Capless Induction SealingNew sealing technology providing performance improvements, significant cost &weight reduction opportunities and greater design flexibility
Benefits of Capless Induction SealingProvides greater control
over sealing process
Allows immediate inspection of sealed container
Rubber insert in sealing head delivers better compliance with uneven sealing surfaces than is possible with a cap
Allows cooling of seal under pressure – better performance with hot-fill products
Reduces cap and liner costUse of new sealing technology provides opportunity for efficiency gains, cleaner production, improved visual appearance of product and enhanced consumer experience with easy to remove foil.
Conventional Conduction Sealing
Product
Pressure & heat
Heat conducted into
foil cap
Hot, stainless steel sealing
head
Heat pattern on sealing head face
210°C
Foil lined cap Cap torque presses foil against neck of bottle Foil heated through cap using electromagnetic
waves Heat-seal layer melts and bonds foil to bottle
Conventional Induction Sealing
Pressure Heat pattern on foil seal -
only sealing area of foil is heated
Product
Heat insulation material
Heat induced into foil where
required to form the seal
Ambient temperature sealing head
Capless Induction Sealing
21°C
230°C
Conventional Induction Capless Induction
Components expensive due to
requirements of cap lining process & foil
retention in cap
Completely reliant on cap torque for
sealing pressure (no control)
Quality assurance difficult to verify as cap
covers foil
Restrictions on pack design due to
cap/foil/thread fit
Can use low cost reel-fed material and
light-weight cap
Sealing pressure mechanically applied so
is reliable and measureable
Foil can be subject to inspection processes
after application
With primary seal being formed by foil,
significant flexibility over design of neck
finish and closure is provided
Comparison Between Sealing Systems
Conventional Conduction Capless Induction
Inefficient, most of the energy put into the
head is lost into the atmosphere
Poor reliability with regular element &
thermocouple failures due to high
temperature levels within head whilst
operating
Difficult to control with temperature time-
lag
Workplace safety issues with hot surfaces
No conformity with hard & irregular
surfaces (ie PET/Glass )
Lost production with warm-up & cool down
Highly efficient, only the foil seal is heated
during the sealing process
Extremely reliable since system is solid
state and sealing head remains at ambient
temperature with no thermal stress
Precise digital control over energy input to
head
Extremely safe as no hot surfaces present
Use of silicone rubber and other face
materials to provide exact conformity with
sealing surface
Instant start-up and shut down for
optimum availability
Comparison Between Sealing Systems
Increased EfficiencyElectromagnetic heating within foil, no heat lost into environmentEnergy only used when machine sealing, zero consumption on standby
Total ControlReal time digital control over induction power level (temperature)Exact control of induction cycle timePrecise control of pressure with rubber head insert for even conformityAbility to maintain pressure on foil during ‘cooling’ phaseMeasurement of induction power on each seal possible =100% QA validation
Improved ProductivitySignificant reliability improvements as no heat is present in the componentsInstant start-up & shut-downFast sealing cycle timesClean sealingGreater operator safety with cold sealing head
The Benefits of Capless Induction Sealing
Examples of Capless Induction Sealing
Metal Plastic Glass
High Accuracy Non-Round Print Register