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Liner Engineering · Technical guides

Liner Engineering

Real-world sealing knowledge from a Shanghai liner manufacturer since 1996 — not marketing copy, engineering detail.

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Choose, compare, process or troubleshoot

Four ways in. Each guide is written for the buyer or line engineer who needs to make a decision, not for the search engine.

Choose

Selection · 2 guides
Guide 01 · Pillar

Pick the Right Induction Seal Liner for Your Bottle

How to work from bottle polymer, contents and cap torque to the correct liner structure, layer by layer.

Induction Seal Liners
 Guide 03

Matching Liner Thickness and Diameter to Your Bottle Mouth

How foil gauge, backing thickness and mouth flatness interact across the Ø 9–182 mm range.

Induction Seal Liners

Compare

Comparison · 1 guide
Guide 02

Induction, Pressure-Sensitive or Foam: Which Closure Liner Fits Your Line?

Sealing principle, machine needs, cost and contents for the three mainstream closure liner types.

Induction Seal LinersPressure-Sensitive LinersFoam & Cap Liners

Process

Manufacturing
Coming soon — how liner structure is built in the factory, from lamination to die-cutting.

Troubleshoot

Diagnosis · 1 guide
Guide 04 · Pillar

Why Your Induction Seal Leaks, Lifts or Wrinkles — and How to Fix It

Symptom-by-symptom diagnosis for the most common induction seal failures on the filling line.

Induction Seal Liners

Send us your container and receive a structure proposal.

Tell us what you fill, the bottle mouth material and the diameter. We reply within 48 hours, and sample liners in your diameter are free.

Talk to us winston@zilingpackaging.com