Abstract: The objects is to rapidly position and fix a blade swivel to a knife cylinder in a rotary die cutter and to abate abrasion of the inner end of an extrusion member that is brought into contact with an extruding unit. A wooden pattern 22 in which a punching blade 20 is embedded is installed to a blade swivel 18. A knife cylinder 16 includes first penetrating holes 76 accommodating first extruding pins 74 while the blade swivel 18 includes a second penetrating holes 80 accommodating second extruding rod 82. The first extruding pin 74 can be brought into contact with the second extruding rods 82, and an eccentric cylinder 72 extrudes the first extruding pins 74 to further extrude a punched chip a sandwiched between a punching blade 20. At the inner opening of each second penetrating hole 80, a recess groove 98 is formed along the axis direction of the knife cylinder.

Abstract: An upper slotter knife is divided into a slotter knife body and a division, and the position of the division relative to a sliding member in which a flap cutter knife is embedded is determined and fixed such that a distance between a nick formed on a cutting blade of the division and the tip of a flap cutter knife is minimized. The presence of the nick makes it possible to form a connection between the slotted chip and the flap chip even when the sizes and the shapes of the corrugated sheet and the joint margin vary. The presence of the connecting point makes it possible to remove the flap chip together with the slotted chip, so that scattering of the flap chip and inferior gluing of the joint margin can be prevented.

Abstract: It is intended to improve work efficiency by eliminating the work of attaching and removing push rods during installing and dismounting the a blade mount and also to reduce abrasion of the push rods for pushing punching scrap out of a punching blade. The first push rods 18 are inserted movably in the first through-holes 16 formed in the knife cylinder and the second push rods 36 are inserted movably in the second through-holes 34 formed in the blade mount to permit the second push rods 36 to be abutted on the first push rods 18. A scrap push lever 30 is mounted on the outer end of the second push rod 36 to push out the punching scrap a and an eccentric cylinder 14 is provided inside of the knife cylinder 10 to push the first push rod 18 outward when pushing out the punching scrap a. The stroke of the first push rod 18 is controlled so that the outer end 18a of the first push rod 18 does not project from the outer periphery 10a of the knife cylinder.

Abstract: Disclosed is a method for producing a board box by performing a box-making process of a corrugated board sheet which is formed to have dimensions of a plurality of board boxes wherein the yield of the board sheet and the production efficiency are enhanced and a countermeasure can be taken against paper powder.

Abstract: In a gluing method of a box production line using a glue gun of a contact-type, the glue can be applied firmly without placing excessive pressure on a gluing margin during a gluing step even when a paper type of the corrugated board sheet changes due to an order change.

Abstract: In a printer for corrugated cardboard sheets and a box making machine for corrugated cardboard sheets, a control device that controls an operation of an air cylinder is provided such that an ink supply roll is moved toward or away from a printing cylinder relative to an intermediate position of a gap between ends of a printing plate attached on a surface of a printing cylinder. With this configuration, ink of an ink supply roll is appropriately transferred to the printing plate, an ink film on the printing plate is uniformized, and then printing precision is enhanced.

Abstract: An ink-jet recording sheet comprising a reflective support having thereon a porous ink absorbing layer containing a dye or a pigment, wherein a color difference ?abL defined by the following formula is not more than 7: ?abL=[(a1?a2)2+(b1?b2)2+(L1?L2)2]1/2 wherein (L1, a1, b1) and (L2, a2, b2) each are a set of coordinates (L*, a*, b*) defined in a CIELAB color space and measured on a surface of the reflective support adjacent to the ink absorbing layer and on an outermost surface of the ink absorbing layer respectively, and a2 is in a range of ?2 to 2 and b2 is in a range of ?4 to 4.

Abstract: An ink-jet recording sheet comprising a reflective support having thereon a porous ink absorbing layer containing a dye or a pigment, wherein a color difference &Dgr;abL defined by the following formula is not more than 7:

Abstract: An ink jet recording sheet comprising a support having thereon a porous ink absorptive layer comprising, inorganic particles, polyvinyl alcohol and a zirconium compound or an aluminum compound, wherein the ink absorptive layer exhibits a concentration gradient of said zirconium compound or the aluminum compound, wherein the concentration increases from the surface of the support towards the surface of the ink absorptive layer.

Abstract: An ink jet recording sheet is disclosed. The recording sheet comprises a water non-absorptive support and a porous ink absorptive layer comprising dicyandiamide polycondensation product on the support.

Abstract: An ink jet recording sheet comprising a support having thereon a porous ink absorptive layer comprising, inorganic particles, polyvinyl alcohol and a zirconium compound or an aluminum compound, wherein the ink absorptive layer exhibits a concentration gradient of said zirconium compound or the aluminum compound, wherein the concentration increases from the surface of the support towards the surface of the ink absorptive layer.

Abstract: The present invention provides a sheet feeding apparatus for a corrugated fiberboard box making machine, which has front stops disposed at two locations spaced in the width direction (transverse direction) to true up the front edges of stacked corrugated fiberboard sheets and is constructed so as to feed a lowermost corrugated fiberboard sheet successively from the front end side of the front stop, characterized in that the front stops at the two locations are constructed so as to be movable in the longitudinal direction in such a manner as to be capable of supporting the corrugated fiberboard sheets while tilting the front edges thereof obliquely in the longitudinal direction.

Abstract: A thermographic material is disclosed which comprises a support and provided thereon, a recording layer containing a photolytic free radical generating agent capable of providing a free radical on absorption of light, a dye decolored by the free radical, and an anti-decolorizing agent, the photolytic free radical generating agent and dye being contained in a microcapsule in the recording layer, and the anti-decolorizing agent being present outside the microcapsule in the recording layer, wherein an image is formed by imagewise heating the thermographic material to mix the anti-decolorizing agent with the photolytic free radical generating agent and the dye to form a latent image, and then exposing the heated material to light which the photolytic free radical generating agent absorbs, so that the dye at the latent image portions is not decolored and the dye at portions other than the latent image portions is decolored.

Abstract: A light- and heat-sensitive recording material is disclosed, comprising a support provided thereon a light- and heat-sensitive layer containing a photo-color-forming element comprising a photodecomposable compound and an element capable of forming a color upon reaction with a decomposition product of the photodecomposable compound, wherein the photo-color-forming element is imagewise heated so as to be mixed to thereby form a latent image and the latent image is further exposed to light to form a color; at least one of the photodecomposable compound and the element capable of forming a color upon reaction with the decomposition product of the photodecomposable compound being dispersed through solution in an organic solvent.

Abstract: In a driving device for a plate-shaped body feeding kicker, a durability of a slide section is improved and mixing of paper powder onto a slide surface can be prevented by supporting a rear end of a screw shaft for moving the kicker by use of a block encompassed by a guide cylinder. In more particular, a front end of a screw shaft for reciprocating a kicker is supported by a slider similarly to the driving device in the prior art, but the rear end of the screw shaft is supported by slidably encompassing a slide piece mounted to the screw shaft by means of a guide cylinder. Especially, the slide piece is held within the guide cylinder as immersed in oil.