A paper cutter comprising a pair of four-joint link array mechanisms disposed in parallel between a paper holding member and a base, wherein pivotal links adjacent between the respective four-joint link array mechanisms are disposed to intersect with each other and to be slanted in directions opposite each other; in association with pivotal movements of the pivotal links, connecting links move in opposition to each other in a longitudinal direction; a downward operation force of the paper holdin...

A paper magazine to be loaded in an image recording device contains a roll of recording paper, and is provided with a transport mechanism to feed the recording paper out of the paper magazine with holding a leading end of the recording paper. The transport mechanism includes a drive roller and a belt mechanism. The belt mechanism is composed of a pair of pulleys, separated by a particular interval, and a flat belt to encircle the pulleys. The drive roller contacts with the flat belt in the cente...

An image forming medium includes a substrate and an imaging layer including a photochromic material and a polymer binder coated on the substrate, where the photochromic material exhibits a reversible homogeneous-heterogeneous transition between a colorless state and colored state in the polymer binder.

A material trimmer including a base having a support surface and a cutting region having a channel. A plate is movably attached to the base and includes oppositely facing upper and lower surfaces, an elongated slot therethrough, an elevated portion proximate each side of the slot, and a distal second end with the elevated portion leading to an arcuate surface. A carrier includes a top flange having a pair of oppositely extending sides and a foot extending from the top flange. The foot is slidabl...

Paper or paper board is made by passing an aqueous cellulosic suspension through a centriscreen or other shear device and then draining the purified suspension, and an improved combination of retention, drainage, drying and formation is achieved by adding to the suspension an excess of high molecular weight linear synthetic cationic polymer before shearing the suspension and adding bentonite after shearing.

The present invention relates to a decorative paper with high abrasion resistance. The present invention provides a thin film containing a thermosetting resin hardener on a sheet of decorative paper. The decorative paper is then impregnated with thermosetting resin. In the press process to manufacture a decorative board, since the thermosetting resin around the printed layer hardens faster than the resin of the raw paper, the resin on the surface is not absorbed and forms a thick hardened film. ...

A paper cutter includes a base with a rail secured thereon, a slide unit, a cutter seat and at least two blades. The base is provided with the rail for the slide unit to slide thereon. The cutter seat is pivotally connected to the slide unit. The cutter seat is provided with the blades. The slide unit further comprises a one-way locking member therein. The cutter seat comprises locking edges corresponding to the locking member for one-way engagement of the locking member with one of the locking ...

An image forming medium includes a substrate and a mixture including a photochromic material and a solvent wherein the mixture is coated on the substrate, such that the photochromic material exhibits a reversible homogeneous-heterogeneous transition between a colorless state and a colored state in the solvent.

In a force cutting type paper cutter, a movable blade includes a pair of right and left edges having a V shape. These right and left edges are intersected and brought into pressure contact with a linear cutting edge of a fixed blade. The movable blade also includes a pair of right and left elastic pieces formed by a lateral slit and a division slit provided in the movable blade. These elastic pieces are held in an inclined state to the side of the fixed blade and such that the edges overlap with...

Watermarked paper, preferably shadow-watermarked paper is produced in conventional manner and then size-press dyed using a pigment dyestuff composition. This results in unusual and attractive decorative effects as a result of preferential dye take-up in parts of the watermarked areas, resulting in enhanced contrast between watermarked and non-watermarked areas of the paper. The invention finds particular application in wallpaper base, but can also be used in decorative or security papers. The pi...