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Title:

Capless Induction Sealing

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Capless Induction Sealing ... cleaner production, improved visual appearance of product and enhanced consumer experience with easy to remove foil. – PowerPoint PPT presentation

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Provided by: MarkG202
Learn more at: http://www.selpac-europe.com
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Title: Capless Induction Sealing


1
Capless Induction Sealing
  • New sealing technology providing performance
    improvements, significant cost weight reduction
    opportunities and greater design flexibility

2

Benefits of Capless Induction Sealing
  • Provides 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 cost

Use 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.
3
Conventional Conduction Sealing
Hot, stainless steel sealing head
Heat pattern on sealing head face

Pressure heat
Heat conducted into foil cap
210C
Product
4
Conventional Induction Sealing
  • 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

5
Capless Induction Sealing
Pressure
Ambient temperature sealing head
Heat pattern on foil seal - only sealing area of
foil is heated

Heat insulation material
230C
Heat induced into foil where required to form the
seal
21C
Product
6
Comparison Between Sealing Systems
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
7
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
8
The Benefits of Capless Induction Sealing
  • Increased Efficiency
  • Electromagnetic heating within foil, no heat lost
    into environment
  • Energy only used when machine sealing, zero
    consumption on standby
  • Total Control
  • Real time digital control over induction power
    level (temperature)
  • Exact control of induction cycle time
  • Precise control of pressure with rubber head
    insert for even conformity
  • Ability to maintain pressure on foil during
    cooling phase
  • Measurement of induction power on each seal
    possible 100 QA validation
  • Improved Productivity
  • Significant reliability improvements as no heat
    is present in the components
  • Instant start-up shut-down
  • Fast sealing cycle times
  • Clean sealing
  • Greater operator safety with cold sealing head

9
Examples of Capless Induction Sealing
Metal Plastic Glass
High Accuracy Non-Round
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