FIBER PLATE AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To obtain a fiber plate having a sufficient strength without greatly changing electric charge balance of fiber dispersion even if white water is repeatedly used by using a specific enhancer in producing the fiber plate from a water dispersion of vegetable fiber. SOLUTION: Both...

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Hauptverfasser:	HAMAGUCHI TOSHISHIGE, MAKINO SHIGETO, KIMURO MAKOTO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS IMPREGNATING OR COATING OF PAPER MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a fiber plate having a sufficient strength without greatly changing electric charge balance of fiber dispersion even if white water is repeatedly used by using a specific enhancer in producing the fiber plate from a water dispersion of vegetable fiber. SOLUTION: Both a water-soluble polymer containing a cationic group and a water-soluble polymer not containing a cationic group are used as an enhancer. The obtained fiber plate comprises a vegetable fiber and at least two kinds of the water-soluble polymers. The fiber plate is obtained by adding at least the two kinds of the water-soluble polymers to a vegetable fiber- containing water dispersion and molding. Even if white water separated by filtration in wet mat formation to make the fiber plate is repeatedly used for dispersion of the vegetable fiber, the fiber plate can be produced without greatly changing the electric charge balance of the fiber dispersion.