Hideto Sekiguchi

Title: Hideto Sekiguchi and Advances in Acrylic Fiber Production.

Introduction

Hideto Sekiguchi is an inventor associated with Okayama, Japan, and Japan Exlan Company Limited. His work includes processes for producing acrylic fibers designed to resist pilling while retaining useful dyeing characteristics. The supplied information lists 2 patents.

Latest Patents

Sekiguchi’s listed patents focus on wet-spinning and heat-treatment methods for acrylic fibers.

“Process for Producing High Shrinking Acrylic Fiber” describes a method for making fibers with high shrinkage, antipilling properties, and favorable dyeing characteristics. The process dissolves an acrylonitrile polymer in an inorganic solvent and wet-spins the solution through spinneret orifices into coagulating baths. It specifies conditions for solvent concentration, extrusion and jet stretch ratios, and subsequent stretching, drying, and secondary stretching of the fibers.

“Process for Producing Anti-Pilling Acrylic Fiber” describes a related wet-spinning method intended to produce acrylic fiber with antipilling and level-dyeing properties. After coagulation and stretching, the fibers undergo drying and a relaxation treatment using hot air or a wet-heat atmosphere. The patent also defines process conditions for solvent concentration and jet stretch ratio.

Career Highlights

The available information connects Sekiguchi’s patent work with Japan Exlan Company Limited and the development of acrylic fiber manufacturing processes. The two listed inventions address fiber performance through controlled spinning, coagulation, stretching, and heat treatment.

Collaborations

Mitsunori Sato and Masao Sone are identified as Sekiguchi’s coworkers. The supplied information does not specify their roles in the listed patents.

Conclusion

Hideto Sekiguchi’s listed patents describe manufacturing approaches that use carefully controlled processing conditions to produce acrylic fibers with antipilling, dyeing, and shrinkage characteristics.