WHITE PAPER BOARD, AND PRINTED MATTER, PRINTED BOX OR PACKAGING CONTAINER EACH PRODUCED USING SAME

WIPO Patent Application WO/2013/140844

A1

A white paper board in which the formation state of a paper layer is improved and of which the rigidity and the degree of whiteness can be controlled. The white paper board has a multi-layered structure composed of three or more layers, wherein an inorganic filler is added to each of a front-side layer and a back-side layer in an amount of 1.0 to 9.0% relative to the amount of pulp fibers, the inorganic filler is added to an intermediate layer in an amount of 2.0 to 15.0% relative to the amount of the pulp fibers, and the white paper board is produced by combining the front-side layer, the intermediate layer and the back-side layer. As the inorganic filler, at least one component selected from light calcium carbonate, heavy calcium carbonate, clay and talc or a combination of two or more components selected from the above-mentioned materials is used. For example, the light calcium carbonate is of a rosetta type.

JP3162382	INDUSTRIAL APPLICABILITY The method and apparatus for producing a cellulosic fiber structure by selectively blocking a discharge channel, and the cellulosic fiber structure produced by the method and apparatus.
WO/2003/091500	METHOD FOR MAKING TISSUE AND TOWEL PRODUCTS CONTAINING CROSSLINKED CELLULOSIC FIBERS

MURANAKA TAKASHI (JP)
NAGATA DAISUKE (JP)
HURUKI YUJI (JP)

PCT/JP2013/051268

September 26, 2013

January 23, 2013

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JUJO PAPER CO LTD (JP)
MURANAKA TAKASHI (JP)
NAGATA DAISUKE (JP)
HURUKI YUJI (JP)

D21H27/00; B65D65/40; D21H17/67

JP2008163507A	2008-07-17
JPH0269945U	1990-05-28
JP2005256234A	2005-09-22
JPH0382896A	1991-04-08
JP2006168283A	2006-06-29
JP2006097138A	2006-04-13

SAITOH HARUO (JP)
Haruo Saito (JP)

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