Cellulose nanofiber manufacturing technology and application development.
To open up new possibilities for wood, a renewable source, we are expanding our fields from pulping technology to nanotechnology as we pursue development of cellulose nanofiber.
In April 2013, we established the CNF Promotion Office within our Research and Development Division.
Then in October 2013, we established the first pre-commercial plant in Japan within our Iwakuni mill as full scale facility for producing cellulose nanofiber by chemical treatment, with an annual production capacity of over 30 tons.
What is cellulose nanofiber?
Made from wood-derived fiber (pulp) that has been defibrated to the nano level of several hundredths of a micron and smaller, cellulose nanofiber is the world’s most advanced biomass material. As the material is derived from plant fibers, it creates low environmental impact in its production and disposal. Among its outstanding characteristics, it is lightweight, has an elastic modulus as high as that of high-strength aramid fiber, exhibits thermal expansion on par with glass, and presents high barrier properties with regard to oxygen and other gases.
The relationship between trees and cellulose nanofiber
Trees are composed of wood fibers, which in turn are made of cellulose nanofibers, aggregations of cellulose molecules.
Characteristics of and applications for cellulose nanofiber
Due to its morphology and characteristic physical properties, cellulose nanofiber is seen as a promising material for use in a wealth of fields, including filter material, high gas barrier packaging material, electronic devices, foods, medicine, cosmetics, and health care.
1.Light and strong
2.Ultra-fine fibers (fiber width: about 3 nm)
3.Large specific surface area
4.Low thermal expansion
5.High gas barrier properties
6.Exhibits characteristic viscosity in water
7.Environmentally-friendly biomass material