US 7,622,019 B2 · Pulp and paper made from Rhodophyta and manufacturing method thereof

Abstract

Disclosed is a method of manufacturing pulp and paper using Rhodophyta, including immersing Rhodophyta in an extraction solvent able to dissolve agar gel for a predetermined time period to dissolve the agar gel in the extraction solvent, reacting the dissolved agar gel with a reaction solvent to be converted into a fiber, curing the fiber using a curing agent, and pulping the cured fiber. The method of the current invention is advantageous because of lower manufacturing costs, due to eliminating the need to purchase wood. Further, the use of chemicals for lignin removal and bleaching drastically decreases, thus preventing environmental contamination. Furthermore, since a final product does not contain harmful chemicals, humans and the environment are not negatively affected.

Claims18

Dependent claims

A method of manufacturing pulp from Rhodophyta containing agar, comprising:

immersing Rhodophyta in an extraction solvent capable of dissolving agar for a predetermined time period sufficient to dissolve the agar in the extraction solvent;
converting the dissolved agar into a fiber by reacting the dissolved agar with a reaction solvent that is different from the extraction solvent;
curing the fiber with a curing agent that is an aldehyde to produce a cured fiber;
and
pulping the cured fiber to produce a pulp.

2 more elements

Dependencies are inferred from the claim text.

Pulp and paper made from Rhodophyta and manufacturing method thereof

Life of this patent

Pulp and paper made from Rhodophyta and manufacturing method thereof

Life of this patent

Abstract

Claims18