Carton Converting Case Study

Our expertise within the carton converting sector means we support a range of industries with their adhesive requirements. A large UK-based carton converting group approached us last year as their new Accuwin in-line window patcher required an adhesive to bond film to board and remain in place through the blast freeze process (-80C) as well as give a fibre tearing bond whilst stored in a freezer (-20C). We had already developed a product with these benefits. Pafra 9400 is the only adhesive formulation for window patching that gives a fibre tearing bond at -20C. Normally cartons are printed, cut, creased, window patched (10,000 cartons per hour) and then put though a carton folder gluer. By using an in-line window patcher on a carton folder gluer you can window patch at 30,000 cartons per hour. The customer required a specialist adhesive with the same performance as Pafra 9400 but for the new application method.

Although window patching is normally carried out using a stencil, the customer’s new system uses a block of 60 jetting nozzles. Jetting on this scale is problematic because if one jet blocks the whole machine will stop and need cleaning. The team at Pafra needed to ensure that the product would not block the jets and created a new formulation to meet these specific requirements. Our specialist understanding of rheology meant that we could ensure the formulation would jet with the right droplet shape with no teardrop or satellite formation. These anomalies can lead to dirty running and machine down time.

The end result of this process was a bespoke product that worked well in the application, having met the requirements set out at the beginning of the project. The customer was impressed by our technical capabilities as a number of multinational brands had not been able to satisfactorily resolve the issue.

To learn more about how our products could improve your performance speeds, please get in touch with a member of our team using the details on the Contact Us page.

 

  • Carton Converting Case Study

    Our expertise within the carton converting sector means we support a range of industries with their adhesive requirements. A large UK-based carton converting group approached us last year as their new Accuwin in-line window patcher required an adhesive to…

  • Carton Manufacturing Case Study

    As leaders in this field, we understand that our customers need adhesive products that are fast, clean and cost-effective. By understanding the application process from end to end, our specialist team are able to design, manufacture and recommend products…

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