Labels need to withstand both high and low temperatures without shrinking, cracking, or losing adhesion. If they can’t handle these conditions, the edges may curl or the glue may fail over time. Light resistance is just as important, without it, labels can fade or turn yellow after long exposure, making the design look old and harder to read.

Labels are designed with precise cutting, proper tolerances, and positioning marks that can be read by sensors. Stable, flat material with the right thickness and shrink rate ensures the labels stay aligned during application.

Automatic labeling is fast, accurate, and suitable for large runs, helping reduce mistakes and labor costs. The cons are that it requires equipment investment and regular maintenance. Manual labeling is slower but works well for small batches or bottles/containers with irregular shapes, and it doesn’t need expensive machinery, though it depends more on people, so results can vary.

Labels need to be run at their recommended shrink temperature and rate, with tunnels that provide even heat and the right time inside. Film thickness, label size, spacing, conveyor speed, and tension all affect heat transfer. It’s also important to keep labels steady with sensors and positioning before heating, and to have proper safety and temperature controls in place.

Yes, it is possible to make shrink sleeves for bottles of different shapes whether round, square or irregular. Factors including material thickness, shrink ratio and how the graphics are applied are carefully adjusted when designing them. That way, the label wraps evenly with a smooth appearance after shrinking and provides the product with a nice and clean look on the shelf.