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how to calculate the cost of unit glue coating in lamination packaging

The unit glue coating cost is a sub-item of the production cost of packaging products.

For solvent-free dry lamination process, the unit glue cost is composed of the purchase cost of glue, gsm (grams per square meter) and the electronic control/electric heating cost of the coating unit. For solvent-based dry lamination process, the unit area glue cost also includes the fan electricity/maintenance cost of the drying oven, the application cost of the diluent for glue preparation, and the application/maintenance cost of VOC treatment equipment.

It is particularly worth mentioning that in the solvent-free dry lamination process, gsm is independent of the lamination processing speed.  

Normally, the gsm of the solvent-free dry lamination process is relatively small and the glue cost is relatively low. This does not mean that the performance of the solvent-free dry lamination adhesive is relatively high, but because the five-roll coating method of the solvent-free dry lamination process determines that a relatively low gsm can achieve a relatively uniform coating state.

In the case of applying solvent-based dry lamination process, if you intend to further reduce the unit area glue cost, firstly, you must use a smooth bar; secondly, you should use a coating roll with a higher number of wires and a narrower web wall width. In addition, equipping the glue coating system with a heating system, so that the solvent-based adhesive can always maintain a certain temperature and stable viscosity, is very helpful for reducing the amount of coating glue.

Check the mindmap to show a rough summary of the calculation

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