In-mold labeling (IML) for plastic containers

In Mold Labeling, one single step.

The IML system guarantees high aesthetic and functional quality. Labels can be printed using various technologies—flexo, gravure, screen printing, offset, or digital—depending on the required graphic performance. The system developed by TECHNE features automatic insertion of labels into the mold cavities by electro-mechanical robots equipped with gripping arms and suction pads, perfectly synchronized with the blow molding cycle.

The IML system does not require additional machines, adhesives, or dedicated personnel and eliminates post-molding labeling stages, reducing time, costs, and energy consumption. The result is a container that is already ready for the filling phase.

Target users:

Food, cosmetics, and industrial sectors

Manufacturers seeking high-end packaging solutions in terms of aesthetics, functionality, and production efficiency.

Manufacturers aiming to optimize time and costs

Time and cost optimization by eliminating post-molding labeling stages thanks to direct integration of the label into the mold.

Manufacturers focused on distinctive, high-quality branding

Product enhancement through the wide customization options offered by IML technology.

The solution for permanent labels.

Techne’s In Mold Labeling system is designed to support packaging manufacturers in improving efficiency and production quality.
It allows continuous loading of label magazines without machine downtime, offers maximum flexibility for labels of any format and size, enables fast format changes with reduced setup times, and ensures high reliability with precise, consistent, and repeatable applications over time.

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In Mold Labeling: 3 key advantages

Sustainability and recyclability

The label and the container can be made from the same plastic material, making the final packaging fully recyclable and environmentally friendly.

Perfect and long-lasting adhesion

IML guarantees a permanent label that does not peel off and maintains firm edges over time, resistant to liquids, wear, and handling.

Premium design

IML provides a smooth surface and high-definition graphic quality, enhancing packaging with vivid colors and a final effect similar to screen printing.

Blow Molding stages with IML

Blow Molding stages with IML

Frequently Asked Questions (FAQ)

What is In-Mold Labeling (IML)?

In-Mold Labeling is a process in which the label is inserted into the mold before forming. The label and the container fuse into a single body, creating durable, hygienic, and high-quality packaging.

In which industries is IML recommended?

The IML system is ideal for the food, cosmetics, and industrial sectors, where hygiene, chemical resistance, and high-end aesthetics are required. In-mold labeling is particularly effective for premium bottles, flacons, and containers.

Which printing techniques can be used for IML labels?

Labels can be produced using flexo, gravure, offset, screen printing, or digital printing. Offset printing, for example, provides excellent photographic quality, ideal for premium branding.

Is IML packaging sustainable?

Yes. Since both the container and the label are made from the same material, the resulting packaging is 100% recyclable.

Which labeling system is the most sustainable?

Among Pressure Sensitive Labeling, Heat Transfer, Sleeve, and IML systems, IML is considered the most sustainable because it does not require additional equipment compared to other technologies. In particular, IML does not require:

Post-molding labeling machines;
Additional adhesives (cold or hot);
Extra personnel to operate labeling machines;
Additional factory space for conveyors or labeling machines.

An IML-labeled container exits the blow molding machine with the label already integrated into the container wall. All other labeling methods require post-molding operations, either before or after filling, and some also require a release liner.
From a sustainability perspective, IML involves lower energy consumption and reduced labor while favoring the use of renewable resources.

Permanent and sustainable labels.

Request more information about the extrusion blow molding process with IML.

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