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【参・企英・研究】カテゴリタイトル

R & D

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The World’s First! Three Forms of CNF

イントロダクション

Cellulose nano-fiber (hereinafter CNF) is plant fiber (pulp) that is finely fibrillated (hereinafter nano-fibrillation) to the nano-order (one millionth of a millimeter) making it about one twenty thousandths of the thickness of human hair.
CNF is a superior material that is transparent, light and strong, resistant to changing shape and has a powerful thickening effect. It can be expected to be used in many fields.

CNFスライダー
CNF image 01
CNF image 02
CNF image 03
CNF image 04
世界初!三形態のCNF

The World’s First! Three Forms of CNF

: Realizing the world’s top level of transparency with unique nano-fibrillation technology

CNF production technology: Oji’s unique complete nano-fibrillation technologyCNF production technology: Oji’s unique complete nano-fibrillation technology

SlurrySlurryExtremely high transparency and viscosity

Wet powderWet powderSuperior dispersibility and handling

Continuous transparent sheetContinuous transparent sheetSame level of transparency as glass

CNF製造技術【ナノ化技術】

CNF production technology: Nano-fibrillation technology

Oji’s Unique Nano-fibrillation Technology

CNF is manufactured by nano-fibrillating pulp. The phosphate esterification method we established introduces a phosphate group, which is an ionic functional group, to the surface of the CNF and, by raising the level of electrostatic repulsion among CNF, makes nano-fibrillation easier to achieve. With this technology, the manufacturing of high quality (high transparency, high viscosity) CNF is possible.

The fibrillation-inducing (nano-fibrillating) mechanism of Oji’s phosphate esterification method

The fibrillation-inducing (nano-fibrillating) mechanism of Oji’s phosphate esterification method

Going forward we will introduce a demonstration facility, expanding and accelerating delivery of samples as we head toward commercialization.

Demonstration facility plan
Location: Oji Paper Co. Ltd. Tomioka Mill (Anan City, Tokushima Prefecture)
Start of operation: second half of 2016
Capacity: 40 t/year

スラリー状

Slurry

World’s Highest Level of Transparency, Ultra-high Viscosity and Dispersibility

Our CNF is a completely nano-fibrillated fiber with superior transparency, ultra-high viscosity and dispersibility.

Slurry

Higher viscosity than other thickeners

High particle dispersibility making it possible to disperse glass beads that are heavier than water.
Maintains dispersibility even after more than one month
ウェットパウダー状

Wet powder

The wet powder CNF that we developed has at least 20% solids and contains absolutely no additives. It can be easily dispersed in water and its characteristics are equivalent to those of slurry CNF.

Features
・Drastic reduction in water content
・Improved handling
・Reduction in environmental burden in terms of transportation energy savings

Wet powder CNF
Wet powder CNF (20% solids)

Superior Dispersibility and High Viscosity (Thickening Effect)

Wet powder CNF can be dispersed as a regular slurry with light mixing.

Like slurry CNF, wet powder CNF has better thickening effect than other thickeners

Can easily be dispersed with light mixing
Can easily be dispersed with light mixing
ウェットパウダー状:流動性向上

ウェットパウダー状CNF

Improved fluidity
Wet powder CNF

We responded to our customers’ needs and successfully developed a wet powder CNF with extremely high fluidity. In this way, we will undertake various development proposals in order to meet the needs of our customers who will use CNF.

透明連続シート

Continuous Transparent Sheet

Same Level of Transparency as Glass

Same Level of Transparency as Glass

We developed the technology to manufacture high quality CNF continuous transparent sheet.

Features
・Same level of transparency as glass
・Higher strength and better dimensional stability under high heat than that of plastic film
・High flexibility

Continuous Transparent Sheet

用途の可能性

Possible applications

We are advancing the development of a range of applications that effectively utilize the various features of CNF.

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