Process for making paper or paper board comprising, forming an aqueous cellulosic suspension, adding a retention system to the cellulosic suspension, draining the suspension on a screen to form a sheet and drying the sheet, wherein the retention system comprises a swelling clay which has a TAPPI brightness of at least 70.

Paper or paper board is made by adding cationic polymeric retention aid to a cellulosic supension, shearing the suspension to degrade the resultant flocs, aggregating the suspension by adding an aqueous composition of bentonite or other anionic bridging coagulant in the presence of anionic dye, pigment or optical brightening agent, and forming paper from the aggregated suspension.

The invention relates to paper, in particular a sheet of paper, preferably security paper such as a bank note, check or the like, the paper (1) comprising at least one window (2) therethrough bridged by a transparent film (3), such as a plastics film or a transparent paper.

A paper container comprises: a container main body in the form of a rectangular parallelepiped that accommodates a number of papers or the like, such as tissue papers, that are placed one upon another, being folded; and an opening portion which is formed on a top of the container main body, wherein respective cuts 5 for a pair of up and down movable flaps 3a, 3b, and pairs of side flaps 4a, 4b, 4c, 4d are formed with a waved blade (corrugated) cutting tool whose blade portion has a pitch of 0.1 ...

A coloring sheet, coloring book, coloring roll, and coloring desk and roll assembly having a coloring sheet with a printed coloring image outline on one surface is substantially visually imperceptible under normal viewing conditions, such as when viewed at a non-coloring distance using a standard incandescent light source, and a method of coloring the sheet. The image may be printed with ink extender, ultraviolet, or infrared ink, or printed opposite the coloring surface.

A sheet of embossed paper including a sheet-like body portion, at least one embossed or depressed line located on the body portion, and at least one printed line located on and extending at least partially along the embossed or depressed line. The invention may also include notebook including a plurality of sheets of paper, each sheet including a sheet-like body portion, at least one embossed or depressed line located on the body portion, and at least one printed line located on and extending at...

A coated paper comprised of a paper substrate, at least one surface of which is provided with at least one coating layer, characterized in that the surface of said coating layer has cracks of a width of 0.2 to 3.0 .mu.m and a length of 3 to 1000 .mu.m in an amount of 1 to 1000 cracks per mm.sup.2 is provided. In another embodiment, a coated paper comprised of a paper substrate, at least one surface of which is provided with at least two coating layers, characterized in that an inner coating laye...

Among other things, the present invention provides various apparatus useful in paper manufacturing and recycling. On such apparatus is a paper strap that includes a paper body that is formed of a compound structure. Such a paper strap further includes an adhesive material formed on at least a portion of the paper body. Methods for using the paper strap include methods related to recycling paper products, methods for sealing cartons, and methods for manufacturing paper products.

A paper returner is placed in the vicinity of an end portion of a hopper for stacking a plurality of sheets of paper which faces a paper feeding roller, so as to be pivotable between a first position where the paper returner constitutes a part of the paper transporting passage, and a second position where the paper returner is isolated from the paper transporting passage. A separation pad is provided on a first face of the paper returner. The separation pad has a friction coefficient which is hi...

It is intended to provide sanitary paper which is excellent in texture such as moistness and softness and scarcely causes skin irritation or blushing even if it is brought into contact with the skin frequently. Namely, sanitary paper having an oil absorbance specified in JIS P8141 of 7 mm or less and a moisture content of from 9.50 to 15.00% (measured in accordance with JIS P8127 after conditioning in accordance with JIS P8111); carrying a solution, which contains a moistening agent, a softener,...