The principles, methods and processes of in-mold labeling

In-mold labeling is a labeling method that many people like now. It is very different from traditional labeling. Today let us take a look at the principles and analysis methods of in-mold labeling. Principle: It refers to a special label paper made of PP or PE paper that is processed on the surface, coated with a special hot melt adhesive on the back, and printed into a trademark.

Labeling method:

 Use a robot to pick up the printed label and place it in the mold. The vacuum holes on the mold will firmly adsorb the label into the mold. When the raw material of the plastic bottle is heated and droops like a hose, the mold with the label quickly closes, and air is blown into the hose to make it close to the mold wall. At this time, the temperature in the entire mold is still relatively high, close to the bottle body. The solid adhesive of the prototype label begins to melt and combines with the plastic bottle body in the mold.

So when the mold is opened again, the plastic bottle is formed and the label and bottle are integrated into one. The beautifully printed trademark is firmly embedded on the surface of the plastic product. The label and the plastic bottle are on the same surface. It feels like there is no label, and the colorful graphics and text seem to be printed directly on the surface of the bottle. The biggest difference between in-mold labels and traditional labels is the different labeling methods. In-mold labels are not labeled after the plastic container is completely formed, but are completed at the same time as the container is formed. The above is its principle and method. I believe you can see the difference between it and traditional labeling from these aspects. It is precisely because of this that its use has been loved by many people. If you are also interested, please contact us.