Technical selection guidance
Prove the band position, closure safety and local heat distribution
Bottleneck label and tamper-band shrinking is a local heat process. The sleeve must be placed accurately, the closure and container must tolerate the exposure, and the final band must meet a defined visual or tamper-evidence requirement.
The existing page does not publish numeric speed, aperture or temperature data, so no unsupported figures are introduced here. Selection remains based on samples, the final configuration and recorded acceptance evidence.
Define the band and the tamper-evidence purpose
Provide the flat sleeve dimensions, material, thickness, seam position and required final location. State whether the band must bridge the cap and container, cover a closure feature or provide another visible indication of opening.
The acceptance standard should describe the permitted top and bottom position and whether tearing, perforation or removal behaviour must be checked. Appearance alone may not prove the intended function.
Map the complete neck and closure profile
Supply dimensioned containers and closures, including caps, pumps, trigger heads, ribs, shoulders and any overcap. The heat zone and guides must be adjusted to the actual profile rather than a nominal bottle diameter.
Use production closures and liners because heat can affect fit, torque, sealing components or decoration. Filled-product condition should be represented where it changes stability or heat response.
Control sleeve placement before heat
A band should enter the heat zone square and at the intended height. Check manual or automatic application, static, sleeve fit, conveyor vibration and transfer gaps before changing the heat settings.
A misplaced band may shrink tightly in the wrong position. The process should therefore inspect placement upstream or define a reject/stop response before the container reaches the heat zone.
Balance local heat around the neck
The published page identifies an adjustable configuration for container and label size and integration into automated bottle lines. Final airflow, heat and speed must be established with the actual band and closure.
Look for local overheating, wrinkles, lifted edges and print distortion. Adjust the process within the sleeve, closure, container and product limits supplied by the responsible manufacturers.
Integrate with the bottling line
Confirm conveyor height, container pitch, guide positions, upstream sleeve placement, downstream inspection and the response to missing or double bands. The heat machine should not become a point where unstable bottles queue or touch.
Where automatic sleeve application is required, use the specialist sleeve applicator site for that equipment ownership while retaining this page for the heat-shrinking stage.
Technical questions buyers ask
What samples are needed for bottleneck-band testing?
Supply production containers, closures, filled condition where relevant, every band material and size, artwork variants and an approved final position or sample.
Can one setting run several cap sizes?
Not automatically. Closure diameter, height, material, band fit and required position can change the heat and guide requirements. Each representative format needs a controlled recipe.
Why does a band wrinkle under the cap edge?
Investigate sleeve fit, seam position, placement height, closure geometry and local heat distribution. The correct cause should be identified before increasing temperature.
How is tamper evidence accepted?
Define the intended bridge over the closure, final position, visible condition and any opening or tear check with the responsible quality team. Record an approved sample.
Can this machine follow a capper and labeller?
It can be assessed for an automated line where container pitch, guides, controls, heat-sensitive labels and downstream inspection are compatible.
Why are no universal speed or temperature values stated here?
The supplied first-party page provides qualitative application and integration information but no verified numeric range. Final values must come from the exact supplied configuration and sample trial rather than being guessed.
