Patent ID: 7838666

Claim:
A water-dispersible cellulose, the water-dispersible cellulose being derived from a plant cell wall having starting cellulosic substance, wherein the starting cellulosic substance has an α-cellulose content of 60-90% by weight and an average degree of polymerization of 400-1300, or the starting cellulosic substance has an α-cellulose content of 60-100% by weight and an average degree of polymerization greater than 1,300, the water-dispersible cellulose being crystalline having a crystallinity of 55% or more, and fine fibrous without entanglement between fibers, and the water-dispersible cellulose having substantially no branched bundles of fiber, the water-dispersible cellulose comprising 30% by weight or more of a component stably suspensible in water, wherein the component comprises a fibrous cellulose having a length (major axis) of 0.5-30 μm and a width (minor axis) of 2-600 nm, and a length/width ratio (major axis/minor axis) of 20-400, and the water-dispersible cellulose having a loss tangent of less than 1, when made into a 0.5% by weight aqueous dispersion.