Nippon Paper Industries Co., Ltd.

Takeo Izumiya

Yoshihiro Aoki

Takanori Otsuhata

Masato Takayama

Ryo Sotooka

Tomonori Kawamata

Hiroyuki Okumura

Provided is an oxidized microfibrillated cellulose fiber having a Canada standard freeness of less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber provides a composition having excellent water retention ability.

Oxidized microfibrillated cellulose fibers and composition thereof

Provided is an oxidized microfibrillated cellulose fiber having a Canada standard freeness of not less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber enhances paper strength when added to a paper.

Provided is a CM-modified microfibrillated cellulose fiber having a Canada standard freeness of not less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber enhances paper strength when added to a paper.

Carboxymethylated microfibrillated cellulose fibers and composition thereof

Provided is a carboxymethylated microfibrillated cellulose fiber having a Canada standard freeness of less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber provides a composition having excellent water retention ability.

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Tokyo, Japan

Takeo Izumiya