Fragrance-resistant Thermoflex ink for flexible packaging
An innovative project almost always stems from a specific need.
In this case, our client had to solve an unusual problem with very precise technical requirements.
The company produces polyethylene for packaging, specifically for toilet paper. This is a highly specialized product that must account for several variables, including various pack sizes (6, 12, or more rolls) and different types of decorative patterns.
Normally, these packages are printed using flexography on the internal side—essentially the surface in direct contact with the rolls.
During handling and storage, the fact that the printing is on the inside leads to friction; therefore, one of the essential requirements for the ink used is high abrasion resistance.
In this specific case, the toilet paper manufacturer developed a scented line where the fragrance partially degrades and attacks the ink surface.
The resulting effect is the gradual dissolution of the ink itself.
Our client, therefore, needed to produce flexible packaging capable of resisting this specific type of chemical degradation.
To solve the problem, we started with the primary critical element: the fragrance essence itself.
We brought the essence to our laboratories in Coseano and developed a two-component formulation designed to resist fragrance emissions while maintaining the essential characteristics required for flexographic printing.
Our technicians then applied the new formulation to a polyethylene sample.
Finally, we conducted a series of resistance tests by placing the perfume in direct contact with the printed polyethylene.
At the end of this process, we successfully developed a special Termoflex formulation that, in addition to its standard properties, features specific "fragrance resistance."
As a result, our client was able to solve their problem and, in turn, provide flexible packaging with exceptionally high technical performance.
This case has once again demonstrated that packaging can be optimized on multiple levels, but only an approach specifically oriented toward problem-solving, backed by genuine expertise, leads to excellent results and the complete satisfaction of customer needs.
