Soili Hietanen

Title: Innovations by Soili Hietanen

Introduction

Soili Hietanen is a notable inventor based in Espoo, Finland. He has made significant contributions to the field of materials science, particularly in the development of innovative fillers and paper products. With a total of three patents to his name, Hietanen's work has the potential to enhance the quality and efficiency of paper manufacturing.

Latest Patents

Hietanen's latest patents include a novel filler and a process for its production. This filler comprises cellulose or lignocellulose fibrils that have light-scattering material particles deposited on them. The invention utilizes an alkyl derivative of cellulose, such as carboxymethyl cellulose (CMC), which is sorbed to the fibrils. This innovative filler can be prepared from a source material containing cellulose or lignocellulose fibrils. The process involves forming a fibril suspension and introducing source materials that create an inorganic or organic salt, which precipitates to form a light-scattering pigment. The resulting filler exhibits excellent strength properties, particularly good bond strength, allowing for an increased concentration of mineral pigment in paper while reducing its grammage without compromising other essential properties.

Another significant patent by Hietanen relates to a method for producing a calendered paper web. This method involves forming a paper web from fibrous raw material in a paper machine, followed by calendering. The invention specifies using a fibrous raw material that is at least partially composed of chemimechanical pulp from a specific family. The calendering process is performed through online soft-calendering, which improves the gloss and smoothness of the papers without decreasing their bulk.

Career Highlights

Soili Hietanen is currently associated with M-real Oyj, a company known for its innovative approaches in the paper and packaging industry. His work has contributed to advancements in the production of high-quality paper products.

Collaborations

Hietanen has collaborated with notable colleagues, including Markku Leskelä and Outi Aho, who have also contributed to the field of materials science and paper technology.

Conclusion

Soili Hietanen's innovative patents and contributions to the paper industry highlight his role as a significant inventor in materials science. His work continues to influence the development of efficient and high-quality paper products.