Company Filing History:
Years Active: 2006-2014
Title: Maija Pitkänen: Innovator in Mechanical Pulp Production
Introduction
Maija Pitkänen is a notable inventor based in Jyväskylä, Finland. She has made significant contributions to the field of mechanical pulp production, holding two patents that enhance the efficiency and quality of paper and cardboard manufacturing. Her innovative approaches have garnered attention in the industry.
Latest Patents
Pitkänen's latest patents include a process for producing mechanical pulp suitable for paper or cardboard making. This method involves fibrillating the pulp and bleaching it under alkaline conditions. The process screens the pulp to separate rejects from accepts, ensuring that a maximum of approximately 60% of the total pulp is classified as reject. The reject is bleached separately and then remixed with the accept, resulting in increased pulp strength and reduced energy consumption during refining.
Another significant patent is for a filler comprising cellulose or lignocellulose fibrils with light-scattering material particles deposited on them. This filler utilizes an alkyl derivative of cellulose, such as CMC, which is sorbed to the fibrils. The manufacturing process involves creating a fibril suspension and adding source materials that form a light-scattering pigment upon precipitation. This innovative filler enhances the strength properties of paper, allowing for increased mineral pigment concentration while maintaining essential paper qualities.
Career Highlights
Maija Pitkänen is currently associated with M-real Oyj, where she applies her expertise in pulp production. Her work has been instrumental in advancing the company's capabilities in producing high-quality paper products.
Collaborations
Throughout her career, Pitkänen has collaborated with notable colleagues, including Outi Aho and Petri Silenius. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Maija Pitkänen's contributions to the field of mechanical pulp production exemplify her commitment to innovation and excellence. Her patents not only improve production processes but also enhance the quality of paper and cardboard products. Her work continues to influence the industry positively.