Johanna Karhu

Title: Innovator Spotlight: Johanna Karhu from Nokia, Finland

Introduction: Johanna Karhu is a prominent inventor located in Nokia, Finland, known for her innovative contributions to the field of adhesive technology. With a total of three patents to her name, she has made significant strides in developing solutions that enhance the recyclability of adhesive labels.

Latest Patents: Johanna's latest inventions include two noteworthy patents. The first is the "Recycling Compatible PSA Label," which features a pressure-sensitive adhesive layer specifically designed to resist disintegration during the paper recycling process. This adhesive is free of alkylphenol ethoxylate and incorporates emulsion polymerized, water-dispersible acrylate polymer along with a non-ionic copolymer based on polyethylene glycol and polypropylene glycol, ensuring eco-friendliness and efficiency.

The second patent is the "Linerless Thermal Label Web and Labels Produced Thereof." This innovative design comprises a release layer, a heat-sensitive thermal paper, and an adhesive layer with adhesive deadening varnish at the longitudinal edges. This strategic design reduces tackiness in specific areas, making it easier to utilize for variable information printing applications.

Career Highlights: Johanna is currently employed at UPM Raflatac Oy, a leader in self-adhesive labeling solutions. Through her work, she not only contributes to her company’s reputation for innovation but also promotes sustainability within the industry.

Collaborations: Throughout her career, Johanna has collaborated with notable colleagues such as Tom Saxberg and Ismo Pietari. Together, they work towards advancing technologies that meet modern demands for environmental responsibility in labeling.

Conclusion: Johanna Karhu exemplifies the spirit of innovation in the adhesive industry. Her dedication to developing sustainable solutions through her patents is paving the way for a more eco-friendly future in labeling technologies. Her work at UPM Raflatac Oy, alongside her talented colleagues, continues to make a positive impact on both the industry and the environment.