Toshiki Sowa

Title: Toshiki Sowa: Inventor in Pulp and Deinking Technology.

Introduction

Toshiki Sowa is an inventor associated with Wakayama, Japan, and Kao Corporation. His work includes inventions related to pulp-sheet production and paper deinking. The supplied information lists 2 patents for him.

Latest Patents

One of Sowa’s listed inventions is “Paper bulking promoter, highly bulky pulp sheet, and process for producing the pulp sheet,” which concerns promoting bulk in pulp sheets.

Another listed invention is “Deinking composition comprising a fatty acid mixture and a nonionic surfactant.” The liquid composition contains a fatty acid mixture with 40 to 90 weight percent saturated fatty acids having 12 to 14 carbon atoms, and less than 60 weight percent saturated fatty acids having 16 to 18 carbon atoms. It also contains a nonionic surfactant with an HLB of 2 to 12, with the fatty acid mixture and surfactant in a weight ratio ranging from 5/95 to 40/60. Water may make up 0 to 20 weight percent of the composition.

The described formulation is intended to remain liquid and avoid fatty-acid crystal precipitation at ambient temperatures. It is also designed to resist separation, solidification, or crystal precipitation caused by temperature changes, improving handling.

Career Highlights

Sowa’s listed patent work connects pulp-sheet properties with deinking compositions, areas relevant to paper processing. The supplied information identifies Kao Corporation as his company.

Collaborations

Koji Hamaguchi and Hiromichi Takahashi are identified as Sowa’s coworkers.

Conclusion

Toshiki Sowa’s listed inventions address pulp-sheet bulk and the stability and handling of liquid deinking compositions, reflecting his contributions to paper-processing technology.