How to choose high barrier material for blister packaging?

As blister packaging materials with high barrier properties, PVC/PVDC film and cold form aluminum foil for pharmaceuticals are popular choices for pharmaceutical packaging materials. For the selection of materials, what factors need to be considered in order to protect the drug itself and be economical? Today we will briefly sort it out.

Barrier Performance Effect

First of all, for drugs that require high barrier packaging, in addition to the basic requirements for the stability of the drug itself, water resistance and oxygen resistance are the most critical factors. We can compare a set of data:

Overall, the cold formed aluminum and the PVDC90gsm product performed on par. The lower the coating amount of the PVDC product, the lower the relative barrier effect. And higher coating amount of PVDC products, correspondingly, its barrier effect will be better.

Machine Use

Second, from the point of view of machine usage. For the pharmaceutical manufacturers of tablet capsules, because the blistering principles of PVC and PVDC are completely the same, a single aluminum-plastic composite packaging machine can meet the packaging production needs of various pharmaceutical capsules and tablets. The comprehensive utilization rate of the machine is relatively high.

The blister machine with aluminum and aluminum packaging can replace a brewing mold without repurchasing a new blister machine, and it can also be used normally.

Personalized Packaging Needs

In such an introverted industry competition, the internal and external packaging, design, and color matching of medicines have also received more attention. In terms of color selection, PVDC has more possibilities than cold aluminum, including transparent, opaque, translucent and various substrate colors. Cold form aluminum foil is more common without printing, full-color printing, and single-text logo printing.

Material Costs

On the premise of using the same weight of packaging materials and the same specifications of the final cost drug board, the number of final product boards that can be made from PVDC is less than that of cold form aluminum, which is mainly determined by the overall thickness of PVDC (take PVDC40gsm as an example, 40gsm The unit gram is nearly 100gsm heavier than 140micron thick cold formed aluminum). However, in terms of material cost per KG, the cost of cold aluminum and PVDC90GSM is relatively close (the price overlap is larger).

Therefore, the purchaser can determine the final product packaging material to be selected by comprehensively comparing the level of barrier performance required by the product, the appearance requirements of the product and the cost of the veneer. JEREL PHARMA PACK can also assist you in choosing more suitable drug packaging materials!